CONTROLLABLE SOLIDS INJECTION

The present invention relates to formation of a controllable, high velocity, pneumatic stream of particulate solids which can be injected into a furnace containing, for instance, a liquid such as a bath of molten metal. 1. Apparatus comprising(A) a combustion chamber having first and second opposed ends,(B) a burner within said combustion chamber at one of said opposed ends, and inlets for fuel and for oxidant to said burner from outside said apparatus;(C) a nozzle having an inlet and an outlet, wherein the inlet is at the other of said opposed ends of said combustion chamber,(D) a duct having an upstream end closed around the outlet of said nozzle and an open downstream end, and(E) a feeder tube having an inlet outside said apparatus and an outlet in said duct between the closed and open ends of said duct, wherein said combustion chamber, said nozzle, and said duct are coaxial.2. A method comprising{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, '(A) feeding fuel and oxidant into the combustion chamber of apparatus according to through the respective inlets therefor and combusting said fuel and oxidant in said combustion chamber to produce a stream of hot gas comprising products of said combustion which stream passes through said nozzle into said duct, and'}(B) feeding particulate solids through said feeder tube into said duct and entraining said solids in said stream of combustion products to form a mixed stream which passes out of the open end of said duct.3. A method of injecting solids into an electric arc furnace claim 2 , wherein the electric arc furnace contains a molten metal bath and a slag layer on top of the molten metal bath claim 2 , and wherein there is a layer comprising a mixture of slag and molten metal between the molten metal bath and the slag layer claim 2 , the method comprising the steps of carrying out the method of to produce a high velocity stream of said solids mixed with said gas claim 2 , and injecting said stream toward the molten ...

Composite material roller for high-temperature annealing

A roller for a high temperature annealing line includes a cylindrical shell and an axial support element and including a spindle at at least one of its ends, and first and second keys fastened to the axial support element and each arranged in a respective first or second through opening formed in the shell. The first key is mounted to bear against a first circumferential bearing surface of the first through opening while the second key is mounted against a second circumferential bearing surface of the second through opening opposite to the first circumferential bearing surface of the first through opening in a circumferential travel direction. The first key is mounted to bear against the second longitudinal bearing surface of the first through opening, while the second key is mounted against the first longitudinal bearing surface of the second through opening opposite to the second longitudinal bearing surface.

APPARATUS FOR PRE-HEATING A METAL CHARGE FOR A MELTING PLANT AND CONNECTED METHOD

Apparatus for pre-heating and conveying a metal charge to a container of a melting plant, comprising at least a conveyor channel along which said metal charge is able to advance so as to be delivered to the container, and in which above said conveyor channel at least a hood is disposed which defines a tunnel inside which at least part of the fumes exiting from said container are able to advance. At least a zone of the hood comprises an expansion chamber located above at least a portion of said metal charge, and able to expand and keep said fumes inside it for a minimum desired time of at least 1.5 seconds before they go into contact with the metal charge. 117.-. (canceled)18. Apparatus for pre-heating and conveying a metal charge to a melting furnace of a melting plant , comprising:a container capable of advancing a metal charge,a conveyor channel having lateral walls and a bottom wall that define a substantially U-shaped cross section and in fluid communication with said container,a hood at least partially disposed above said conveyor channel and having a tunnel wherein at least part of the fumes exiting from the metal charge in said container advance into said hood,an expansion chamber within said hood and at least partially located above said container;a connection pipe disposed between said container and said expansion chamber;at least one suction pipe disposed within said lateral walls of said conveyor channel; anda longitudinal portion of said conveyor channel having at least one fume discharge apertures disposed within said lateral walls and in fluid communication with one said at least one suction pipe.19. The apparatus as in wherein the internal volume of said expansion chamber is a function of the quantity of fumes generated in said container claim 18 , wherein the fumes remain inside said expansion chamber for at least a contact time of about 1.5 seconds.20. The apparatus of wherein said contact time is between about 1.5 seconds and about 6 seconds.21. ...

Sulfur melting system and method

A system and a method are provided for melting solid sulfur and maintaining the resulting molten sulfur in liquid state. The system and the method may be fabricated, installed and operated at low capital costs, with high throughput rates at high operating efficiencies and low maintenance costs. Specific embodiments of the invention include modular and non-modular designs, which may be installed and operated with low to high degrees of automation, allowing the user to tailor the final configuration to meet specific requirements. The system of the invention comprises a specific configuration of a prescribed solid sulfur feed unit, a prescribed high-capacity melting unit, a compartmentalized pump tank assembly, and a heat exchanger located outside the high-capacity melting unit. The method provided follows the configuration of the system. 1. A system for melting sulfur , said system comprising the following components in combination:a) a high-capacity melting unit, equipped to receive solid sulfur from an outside source and melting it, comprising a vessel (or “melter”) having an inner surface, an outer surface and a sloped bottom, and provided with an agitator and with means for providing heat to said inner surface and said outer surface of the melter, said means for providing heat to said inner surface and outer surface of the melter spaced around said outer surface of the melter;b) means for pumping molten sulfur, operably connected to said high-capacity melting unit and capable of pumping molten sulfur to a heat exchanger and to a molten sulfur product destination; andc) a heat exchanger, located outside said high-capacity melting unit and operably connected to and adapted to receive molten sulfur pumped by said means for pumping molten sulfur, allow said molten sulfur to flow inside and through said heat exchanger and be heated to a temperature of between about 275° F. and about 350° F. in said heat exchanger and return it to said high-capacity melting unit.2. The ...

METHOD FOR FORMING AND USING A FURNACE ROLLER ASSEMBLY

A furnace roller assembly is formed with a helically shaped shaft-offset and metal product contact surface assembly wound around a furnace roller shaft. A corebuster may be provided within the furnace roller shaft to direct the flow of a coolant within the axial length of the furnace roller shaft and through a cooling element forming a part of the shaft-offset and metal contact surface assembly. 1. A method of fabricating a furnace roller assembly comprising:fabricating a linearly oriented shaft-offset and metal contact surface assembly including a wear element, a cooling element connected to the wear element, the cooling element having an internal coolant passage terminating at opposing cooling element supply and return ends, and a support element connected to the cooling element;forming an offset assembly supply opening and a return coolant opening along a furnace roller shaft;providing an offset assembly supply transition fitting and an offset assembly return transition fitting, each of the offset assembly supply and return transition fittings having a first end and a second end opposing the first end;connecting the first end of the offset assembly supply transition fitting to the offset assembly supply coolant opening, and the first end of the offset assembly return transition fitting to the offset assembly return coolant opening;helically bending the linearly oriented shaft-offset and metal contact surface assembly around an outer surface of the furnace roller shaft and connecting the support element to the outer surface, andconnecting the second end of the offset assembly supply transition fitting to the cooling element supply end, and the second end of the offset assembly return transition fitting to the cooling element return end.2. The method of further comprising depositing a thermal insulation over at least a portion of the furnace roller shaft.3. The method of wherein the step of helically bending the linearly oriented shaft-offset and metal contact ...

METHOD FOR LOADING AND DEPOSITING LOADED MATERIAL IN BLAST FURNACE, LOADED MATERIAL SURFACE DETECTION DEVICE, AND METHOD FOR OPERATING BLAST FURNACE

A detection wave from a transmitting/receiving means is guided to the interior of a blast furnace via an antenna and a reflecting plate, and when a reflected wave from the surface of a loaded material is reflected by the reflecting plate and received by the transmitting/receiving means, the reflecting plate is rotated together with the antenna, or the reflecting plate is rotated additionally, and the surface profile of the loaded material is measured by scanning the surface of the loaded material in a linear manner or a planar manner during the turning of a chute or for each prescribed turn of the chute. A deposition profile is obtained on the basis of this surface profile and is compared to a predetermined theoretical deposition profile, and the chute is controlled so as to correct the error with respect to the theoretical deposition profile and then which new loaded material is introduced. 1. A surface detection device of a loaded material in a blast furnace , which comprises a reflecting plate installed just above an opening provided in the vicinity of the top of the blast furnace and having a reflecting surface inclined toward the opening , an antenna installed to face the reflecting surface of the reflecting plate , and a waveguide configured to couple the antenna and a detection wave transmitting/receiving unit , wherein the device is configured to transmit a detection wave from the antenna to the reflecting surface of the reflecting plate , to enable the detection wave to enter the furnace through the opening , to enable the detection wave reflected from the loaded material in the furnace to return to the reflecting surface of the reflecting plate through the opening , to send the same to the antenna , to detect the detection wave by the detection wave transmitting/receiving unit and to detect a distance to a surface of the loaded material or a surface profile of the loaded material , said device comprising:a waveguide rotating unit configured to rotate the ...

Duct Cleaning and Valve Device for Furnace System

A furnace system includes a furnace and a preheater configured to preheat material before it enters the furnace. The system further includes a duct system including a mixing chamber disposed between the furnace and preheater. The duct system further includes an exhaust duct in fluid communication with an exhaust fluid outlet of the furnace and configured to vent fluid exhausted from the furnace. The exhaust duct is in fluid communication with the mixing chamber and configured to redirect a portion of the fluid exhausted from the furnace to the mixing chamber. The duct system further includes a preheater duct in fluid communication with the mixing chamber and a fluid inlet of the preheater and configured to direct fluid from the mixing chamber to the preheater. The system further includes a duct scraper configured for movement within the mixing chamber to move particulates from the mixing chamber into the exhaust duct. 1. A furnace system , comprising:a furnace having an exhaust fluid outlet;a preheater configured to preheat material before the material is provided to the furnace, the preheater having a fluid inlet; a mixing chamber disposed between the furnace and the preheater,', 'an exhaust duct in fluid communication with the exhaust fluid outlet and configured to vent fluid exhausted from the furnace, the exhaust duct in fluid communication with the mixing chamber and configured to redirect a portion of the fluid exhausted from the furnace to the mixing chamber;', 'a preheater duct in fluid communication with the mixing chamber and the preheater fluid inlet and configured to direct fluid from the mixing chamber to the preheater;, 'a duct system including'}a duct scraper configured for movement within the mixing chamber to move particulates out of the mixing chamber.2. The furnace system of wherein the duct scraper is further configured to movement within the mixing chamber to move particulates out of the mixing chamber and into the exhaust duct.3. The furnace ...

CONVEYANCE DEVICE FOR HEAT TREATMENT DEVICE AND HEAT TREATMENT DEVICE

A conveyance device for a heat treatment device presses a conveyed body to convey the conveyed body in a linear direction, and includes a cylinder mechanisms having a retractable rod that presses the conveyed body, in which: an abutting member is disposed at a tip part of the rod of the cylinder mechanism so that the abutting member abuts locations, which are different from each other in a circumferential direction, on an outer peripheral surface of the conveyed body; a guide rail configured to guide the abutting member is provided; and the abutting member is provided with a traveling roller that travels on the guide rail. 1. A conveyance device for a heat treatment device that presses a conveyed body to convey the conveyed body in a linear direction , the conveyance device comprising:a cylinder mechanism which includes a retractable rod that presses the conveyed body,wherein:an abutting member is disposed at a tip part of the rod of the cylinder mechanism so that the abutting member abuts locations, which are different from each other in a circumferential direction, on an outer peripheral surface of the conveyed body;a guide rail configured to guide the abutting member is provided; andthe abutting member is provided with a traveling roller that travels on the guide rail.2. The conveyance device for a heat treatment device according to claim 1 ,wherein the conveyed body is disc-like, and a pair of the abutting members is disposed so that the pair of abutting members abut two different locations in the circumferential direction on the outer peripheral surface of the conveyed body.3. The conveyance device for a heat treatment device according to claim 1 , wherein:the guide rail is intermittently arranged via a gap in a length direction of the guide rail;the abutting member is provided with a plurality of the traveling rollers disposed in a traveling direction of the traveling roller; andthe plurality of traveling rollers are arranged so that a distance between two ...

Method and device for charging coal-containing material and iron carrier material

A melter gasifier of a smelting reduction installation is charged by bringing together coal-containing material in lump form and iron carrier material (which may be hot) before and/or while they enter the melter gasifier. The ratio of the combined amounts of iron carrier material and coal-containing material in lump form is variable. The combined amounts of iron carrier material and coal-containing material in lump form are distributed over the cross section of the melter gasifier by a dynamic distributing device, and the ratio of the combined amounts of the iron carrier material and coal-containing material in lump form is set depending on the position of the dynamic distributing device.

METHOD FOR MANAGING THE CHARGE IN A MELTING FURNACE AND CORRESPONDING LOADING APPARATUS

Method for managing the metal charge in a melting furnace comprising at least a step of depositing metal materials to be melted in a storage zone, a step of picking up and loading the metal materials from the storage zone onto feed means by means of loading means, and a feed step in which the feed means feed the materials toward the melting furnace. The deposit step provides to divide the storage zone into a plurality of specialized areas in each of which a differentiated type of the metal materials is deposited, and during the pick-up and loading step, a processing device controls and commands the actuation of the loading means which pick up the types of materials from the specialized areas and load them onto the feed means according to a desired modality and quantity. 111141313121922121413334023303340192233405019222330334012. Method for managing the metal charge () in a melting furnace () comprising at least a step of depositing a plurality of differentiated types of metal materials in a storage zone () , said differentiated types comprising at least low value scrap , scrap with a greater value , slabs of cast iron or other , a step of picking up and loading said metal materials from said storage zone () onto feed means () by means of loading means (-) , and a feed step in which said feed means () unload said materials into the melting furnace () , characterized in that said deposit step provides to divide said storage zone () into a plurality of distinct and specialized areas (-) in each of which a different type of materials (-) of said metal materials is deposited , each of said specialized areas (-) being codified depending on the type of metal materials deposited therein and containing metal materials with homogeneous characteristics , in that at least its own distinct loading mean (-) is associated to each of said specialized areas (-) , and in that during said pick-up and loading step , a processing device () controls and commands the actuation of one or ...

BATCH CHARGE CONVEYING SYSTEMS FOR ELECTRIC INDUCTION FURNACES

A batch charge conveying system is provided for multiple electric induction furnaces where each one of the multiple furnaces has a separate charge conveying apparatus. An assembled batch charge is loaded on a single assembled batch charge transport apparatus that selectively delivers the assembled batch charge to a separate charge conveying apparatus associated with one of the multiple electric induction furnaces. 1. A batch charge conveying system for two or more electric induction furnaces , the batch charge conveying system comprising:a separate charge conveying apparatus for conveying an assembled batch charge to each one of the two or more electric induction furnaces, the separate charge conveying apparatus having a conveying charge load end and a furnace charge load end; anda single assembled batch charge transport apparatus for receiving a selected charge materials forming the assembled batch charge on the single assembled batch charge transport apparatus, the single assembled batch charge transport apparatus having an assembled batch charge transport driver system arranged to move the single assembled batch charge transport apparatus with the assembled batch charge to a conveyor charge loading station adjacent to the conveying charge load end of one of the separate charge conveying apparatus for transfer of the assembled batch charge to the one of the separate charge conveying apparatus.2. The batch charge conveying system for two or more electric induction furnaces of further comprising a single batch charge loading station for the single assembled batch charge transport apparatus to receive the selected charge materials claim 1 , the assembled batch charge transport driver system arranged to move the single assembled batch charge transport apparatus between the single batch charge loading station and the conveyor charge loading station for each of the separate charge conveying apparatus.3. The batch charge conveying system for two or more electric ...

METHOD AND ARRANGEMENT FOR FEEDING FEED MATERIAL FROM A BIN FOR FEED MATERIAL INTO A FURNACE SPACE OF A SMELTING FURNACE

The invention relates to a method and to an arrangement for feeding feed material from a bin () for feed material into a furnace space of a smelting furnace. The method comprises a first providing step for providing a feed material feeding arrangement () for feeding feed material from the bin () for feed material into the furnace space of the smelting furnace (), and a feeding step for feeding feed material from the bin () for feed material into the furnace space of the smelting furnace. The method comprises additionally a second providing step for providing at least one sensor () for measuring flow of feed material at a position between the bin () for feed material and the furnace space of the smelting furnace (), and a measuring step for measuring flow of feed material by means of said at least one sensor () at said position. 1. A method for feeding feed material from a bin for feed material into a furnace space of a smelting furnace , wherein the method comprisesa first providing step for providing a feed material feeding arrangement for feeding feed material from the bin for feed material into the furnace space of the smelting furnace, anda feeding step for feeding feed material from the bin for feed material into the furnace space of the smelting furnace,characterizedby a second providing step for providing at least one sensor for measuring flow of feed material at a position between the bin for feed material and the furnace space of the smelting furnace, anda measuring step for measuring flow of feed material by means of said at least one sensor at said position.2. The method according to claim 1 , characterizedby the feed material being granulated material, andby the smelting furnace being an electric furnace.3. The method according to claim 1 , characterizedby the feed material being fine-grained matter such as concentrate or matte, andby the smelting furnace being a suspension smelting furnace comprising a concentrate or matte burner having reaction gas ...

Aluminum Warm Forming Oven And Production Line

A multi-window platen oven for simultaneously heating a plurality of blanks, for example aluminum blanks, before forming the heated blanks in a production line is provided. The oven includes a plurality of vertically aligned shelves disposed in an existing press assembly so that no additional floor space is required. The shelves are attachable to an upper press bed and one another. The upper press bed lifts the attached shelves to present an open window for receiving an unheated blank and/or removing a heated blank from the oven. The remaining windows remain closed and continue heating while the blanks are transferred to and from the oven. After closing the one open window, another window opens to receive another unheated blank and/or remove another heated blank. Thus, the multi-window platen oven continuously provides blanks which are ready for warm or hot forming. 1. A method for simultaneously heating a plurality of blanks , comprising the steps of:providing a multi-window oven assembly including an upper press bed, a lower press bed vertically aligned with the upper press bed, and a plurality of shelves vertically aligned with and disposed between the press beds, wherein at least one of the press beds is movable vertically relative to the other press bed, and at least one of the shelves is coupled to at least one of the upper press bed and the lower press bed;disposing at least one blank on at least two of the shelves or on the lower press bed and at least one shelf; andsimultaneously heating the at least two shelves.2. The method of claim 1 , wherein the step of providing the multi-window oven assembly includes sliding the shelves horizontally into vertical alignment with the upper press bed and the lower press bed.3. The method of including moving at least one of the upper press bed and the lower press bed and any coupled shelves vertically away from the remaining shelves and press bed to present an open window between a pair of the shelves or between one of ...

PLASTIC CONVERSION FEED SYSTEM

A plastic conversion feeding system serves to transport a feedstock through different processing units or stations to a vessel wherein chemical and/or physical reactions occur to produce suitable, useful end products. Various processing units include a homogenizer for breaking up said feedstock, a size reduction device for reducing the feedstock to particles and densifying the same, a heating and/or blending device for heating said feedstock, and a feed conduit connecting said heating and blending device to said vessel. The feedstock conversion unit vessel through various cracking, reforming, condensation, recombination, and recracking operations, produces a mixture of useful gases and condensable gases.

Energy Efficient Furnace with Coaxial Segmented Center Hearth and Multiple Combustion Stages with Regenerative Heat Return

Disclosed in the present invention are a combustion furnace with coaxial staged hearth and heating method thereof, in which the combustion furnace comprises a metal furnace body () whose internal part is provided with a furnace chamber. The furnace chamber is divided into two sections at the middle by fire resistant material to form a left and a right independent combustion chambers (). Two independent combustion chambers () are respectively connected with the ends of flue gas chambers (), while the other ends of the flue gas chambers () are respectively connected with a burner (). The peripherals of two independent combustion chambers () are respectively provided with a flue gas heat radiation pipe (). A middle flue gas chamber () is set in the middle position of the furnace chamber. Two ends of the flue gas heat radiation pipe () are respectively connected with the flue gas chamber () and the middle flue gas chamber (). Two independent combustion chambers () are communicated with each other through the flue gas chamber (), the flue gas heat radiation pipe () and the middle flue gas chamber (), and combust alternately. A suspension device including a portal frame () is provided for suspending the metal furnace body () horizontally or obliquely. The metal furnace body () is suspended on the portal frame () at a suspending point (). A walking mechanism () and a feeding mechanism () are also set on the portal frame (). 1. An energy efficient furnace with coaxial segmented center hearth and multiple combustion stages with regenerative heat return wherein comprising:a metal furnace body whose inside is provided with a furnace chamber; the furnace chamber is divided into two sections at the middle by fire resistant material to form a left and a right independent combustion chambers; two independent combustion chambers are respectively connected with the ends of flue gas chambers, while the other ends of the flue gas chambers are respectively connected with a burner; the ...

Apparatus for making liquid iron and steel

A metallizing apparatus which is carbonaceous-based wherein a metallic oxide is converted into a carbon-containing, metallized intermediate that is melted in an induction channel furnace to produce liquid metal from said metallic oxide. In the application of iron ore in the form of fines or concentrate, using low-cost coal will greatly reduce capital and operating costs by virtue of eliminating agglomeration of ore, cokemaking, and blast furnace operation. The liquid iron so produced is efficiently converted into steel in a steelmaking furnace such as a basic oxygen furnace (BOF), especially when it is physically integrated to the induction channel furnace wherein the liquid iron is directly poured into the integrated BOF by the induction channel furnace, producing low-cost steel, little heat loss, and minimum emissions.

Conveyance roller for heating furnace

A conveyance roller for a heating furnace includes: a roller body constituted by a metal tube made of a heat-resistant alloy; at least one holding protrusion provided on an outer circumferential surface of the roller body for holding an object to be heated in the heating furnace, and protruding from the outer circumferential surface of the roller body in a plurality of positions at a given interval in a longitudinal direction of the roller body; and at least one shielding member provided to be adjacent to the at least one the holding protrusion in the longitudinal direction, and covering the outer circumferential surface of the roller body. The at least one shielding member has a thickness not larger than a height of the holding protrusion from the outer circumferential surface of the roller body.

Scrap metal advancing arrangement

In a scrap metal advancing arrangement with a scrap metal pusher supported in a linear guide structure and a first hydraulic drive system comprising at least one first cylinder piston unit wherein the scrap metal pusher has a front surface extending normal to the linear guide direction, the scrap metal pusher includes an inner pusher block which is movable relative to the first hydraulic cylinder piston unit. The push block also has a front surface which extends normal to the linear guide direction, with the gradient of the effective piston surface of ail second cylinder-piston units and the effective front surface area being greater than the quotient of the effective piston surfaces of all first cylinder piston units and the effective pusher front surface area.

MELTING REDUCTION ASSEMBLY AND METHOD FOR OPERATING A MELTING REDUCTION ASSEMBLY

A melting reduction assembly () has a melting gasification zone, including a packed bed () formed by solid carbon carriers and ferrous input materials, the zone has a lower section for receiving liquid pig iron () or raw steel material and liquid slag (), a tap () for liquid slag and liquid pig iron. A plurality of oxygen nozzles () supplies oxygen. The nozzles are in at least two nozzle planes arranged spaced apart from each other and parallel in the vertical direction and horizontally distributed over the circumstances of the shell () of the melting reduction assembly () and arranged offset to each other in their respective nozzle planes. 1. A melting reduction assembly comprising;an enclosure defined by a shell,loading devices for loading solid carbon carriers and ferrous input materials in the enclosure;a melting gasification zone in the enclosure and which comprises a packed bed formed by the solid carbon carriers and the ferrous input materials, the melting gasification zone having a lower section for receiving liquid pig iron or raw steel material and liquid slag and having a tap for outlet of liquid slag and liquid pig iron;a plurality of oxygen nozzles arranged in the shell of the melting reduction assembly, and a plurality of supply lines for feeding oxygen-containing gas or oxygen to the oxygen nozzles, the oxygen nozzles having outlets, the oxygen nozzles being in a ring circuit which surrounds the shell of the melting reduction assembly in a ring form, the plurality of oxygen nozzles are arranged distributed in at least two parallel nozzle planes arranged spaced apart from one another in a vertical direction, the nozzles being horizontally distributed around the periphery of the shell in the at least two nozzle planes; the nozzles are arranged offset to one another, wherein the vertical spacing between the nozzle planes at the vertical spacing between the exit openings of the oxygen nozzles is smaller than, or at most equal to, the horizontal spacing ...

Thermal reduction apparatus for metal production, gate device, condensing system, and control method thereof

Disclosed is a thermal reduction apparatus. The thermal reduction apparatus according to the exemplary embodiment includes: a preheating unit which preheats a to-be-reduced material and loads the to-be-reduced material into a reducing unit; the reducing unit which is connected to the preheating unit and in which a thermal reduction reaction of the to-be-reduced material occurs; a cooling unit which is connected to the reducing unit and from which the to-be-reduced material flowing into the cooling unit is unloaded to the outside; a gate device which is installed between the preheating unit and the reducing unit; a gate device which is installed between the reducing unit and the cooling unit; a condensing device which is connected to the reducing unit and condenses a metal vapor; a first blocking unit which is installed in the reducing unit; and a second blocking unit which is installed in the reducing unit so as to be spaced apart from the first blocking unit.

THERMOPLASTIC MELTING KETTLE MATERIAL CIRCULATION SYSTEM

A molten thermoplastic circulation system that is used in conjunction with thermoplastic melter kettles. The molten circulation system includes a vertical material transfer tube that is coupled to a melter kettle and includes an auger. The vertical material transfer tube is coupled to the top and bottom of a melter kettle so as to transfer molten thermoplastic between the bottom and top of the melter kettle. The vertical material transfer tube is at least partially surrounded by a heat chamber through which a heated fluid such as hot combustion gases or heated oil can flow. In use molten thermoplastic material that is heated at a higher temperature at the bottom of a melter kettle near the combustion chamber is transferred through the vertical material transfer tube to the top of the melter kettle to improve melting efficiency. 1. In a melter kettle for melting thermoplastic pavement marking material wherein the melter kettle is provided with a combustion chamber the improvement comprising a molten thermoplastic circulation system coupled to the melter kettle , the molten thermoplastic circulation system comprising:a vertical material transfer tube in fluid communication with the bottom and top of the melter kettle and having an auger therein for transferring molten thermoplastic material between the bottom and top of the melter kettle; anda heat chamber surrounding at least a portion of the vertical material transfer tube through which a heated fluid flows.2. The melter kettle of claim 1 , wherein the heat chamber is in fluid communication with the combustion chamber whereby hot combustion gases generated in the combustion chamber flow through the heat chamber.3. The melter kettle of further comprises a source of heated oil that flows through the heat chamber.4. The melter kettle of claim 1 , wherein the heat chamber surrounds substantially the entire circumferential periphery of the vertical material transfer tube.5. The melter kettle of claim 1 , wherein the heat ...

MATERIAL PROCESSING SYSTEM

A material processing system includes an oven that cooks or bakes, with electrical resistance, dough contained within containers. The oven can include a frame defining, devices mounted, in a preselected pattern, on the frame for a reciprocal movement in a vertical direction during use of the system, each device configured to connect voltage to a respective container so as to cook or bake the dough with the electrical resistance, and one or more powered members configured to move the devices in the vertical direction. Conveyors are also provided to convey a plurality of rows of containers with a plurality of containers in each row along a material conveyance path, the conveyors disposed in a series with each other and with the oven along the material conveyance path, one of the conveyors disposed within the oven so as to position a batch of the containers in an alignment with the devices. 1. A production system , comprising: a frame defining an inlet end and an outlet end of said oven,', 'devices mounted, in a preselected pattern, on said frame for a reciprocal movement in a vertical direction during use of said oven, each device configured to connect voltage to a respective container so as to cook or bake the dough with the electrical resistance, and', 'one or more powered members configured to move said devices in said vertical direction; and, 'an oven that cooks or bakes, with electrical resistance, dough contained within container, said oven comprisingconveyors that convey a plurality of rows of containers with a plurality of containers in each row along a material conveyance path, said conveyors disposed in a series with each other and with said oven along said material conveyance path, one of said conveyors disposed within said oven so as to position a batch of said containers in an alignment with said devices.2. The system of claim 1 , further comprising a means for changing a movement direction of said containers.3. The system of claim 2 , wherein said means ...

FURNACE WITH MOVABLE BEAM LOAD HANDLING SYSTEM

Furnace with movable beam load handling system, in particular for heating or heat treatment of ferrous or non-ferrous metallic material, comprising:—a furnace chamber extending between a furnace-loading section and a furnace-unloading section of the material along a longitudinal direction;—first beams, arranged inside said chamber and defining a plurality of main supports for the material to be treated in said chamber,—second beams, arranged inside said chamber and defining a plurality of temporary supports for the material, wherein said second beams are cyclically movable with respect to the first beams so as to impart to said material a movement between said furnace-loading section and said furnace-unloading section having a motion component parallel to said longitudinal direction. 2. The furnace according to claim 1 , wherein said first beams and/or said second beams are movable with movements having a motion component transverse to said longitudinal direction independent of any movements having a motion component parallel to said longitudinal direction.3. The furnace according to claim 1 , wherein said second beams are movable with respect to the first beams also vertically to move between:a lowered position, wherein said second beams are arranged at a height lower than that of the first beams with respect to the hearth of said chamber leaving the material resting on the first beams, anda raised position, wherein said second beams are arranged at a height higher than that of the first beams with respect to the hearth of said chamber so as to lift the material from the support on the first beams.4. The furnace according to claim 3 , wherein said second beams are vertically movable independently with respect to movements parallel to said longitudinal direction.5. The furnace according to claim 1 , wherein only said first beams are movable with respect to the furnace chamber with movements having a motion component transverse to said longitudinal direction claim 1 ...

FURNACE ROLLER ASSEMBLY

A furnace roller assembly having a fluid-cooled shaft that is covered by an interface performance material comprising both ceramic millboard and a wire brush bristled-material is disclosed. The roller assembly can be used as part of a conveyance system in a finishing mill to support and transport steel sheet through an annealing furnace. The fluid-cooled shaft and the ceramic millboard plus wire brush interface performance material arrangement provide the means to provide effective insulation for the shaft while preventing degradation of the covering on the shaft. 1. A roller assembly , comprising:a shaft comprising a first interface performance material applied of an outer surface of the shaft and a second interface performance material applied to an outer surface of the first interface performance material; anda fluid-cooling system configured to transport coolant within an interior of the shaft;wherein the roller assembly is configured to be part of a conveyance system to transport product.2. The roller assembly of claim 1 , wherein the conveyance system comprises a plurality of roller assemblies.3. The roller assembly of claim 1 , wherein the conveyance system is configured to support and transport steel sheet into and out-from an annealing furnace.4. The roller assembly of claim 1 , wherein:the shaft comprises a hollow interior; andthe fluid-cooling system is positioning at least partially within the hollow interior.5. The roller assembly of claim 1 , wherein the first interface performance material is configured to thermally insulate the shaft.6. The roller assembly of claim 1 , wherein the first interface performance material comprises ceramic.7. The roller assembly of claim 1 , wherein the second interface performance material is configured to prevent the shaft from marking the product.8. The roller assembly of claim 1 , wherein the second interface performance material comprises wire brush material.9. The roller assembly of claim 1 , wherein the fluid- ...

ROLL FOR HANDLING A LOAD IN A FURNACE USABLE IN A CONTINUOUS CASTING AND ROLLING PROCESS FOR THIN CARBON STEEL SLABS

The present invention relates to a water-cooled handling roll () for handling a load (), in particular a thin slab, in a furnace for temperature heating, maintaining and for buffering, arranged between casting and roughing, in a continuous casting and rolling process for thin carbon steel slabs. The roll () comprises a first internally hollow shaft (), which is coated by an insulating and/or refractory material and a plurality of wheels () connected in stably fixed manner to an outermost surface () of the first shaft () to handle and support the load (). According to the invention, the roll () also comprises a second shaft () arranged within an inner cavity of the first shaft () in position coaxial to the first shaft () and so as to define a gap () between the first shaft () and said second shaft (). The roll () further comprises cooling water circulation means housed at least in part within said second shaft (). 1) A water-cooled handling roll for handling , a load , in particular a thin slab , in a furnace for temperature heating , temperature maintaining and for buffering of said load in a continuous casting and rolling process , wherein said water-cooled handling roll comprises:a first shaft internally hollow, which longitudinally runs around a first longitudinal axis, said first shaft comprising an outermost surface and an innermost surface, wherein said outermost surface of said first shaft is coated by an insulating and/or refractory material, and wherein said innermost surface of said first shaft defines an inner cavity of said first shaft;a plurality of supporting wheels for supporting said load, said supporting wheels being stably fixed to said outermost surface of said first shaft;a second shaft arranged within said inner cavity of said first shaft in a position coaxial to said first shaft, an outermost surface of said second shaft having, over at least said a first longitudinal length, a smaller diameter than the diameter of said inner cavity of said ...

SUBMERGED FEEDSTOCK CHARGING OF MELTING VESSELS

A melting furnace feedstock charger includes a charger conduit including an inlet to receive feedstock and an outlet at an outlet portion of the charger conduit to transmit feedstock, and an auger or other feedstock mover coupled to the charger conduit to convey feedstock in a direction from the inlet toward the outlet. A gate may be detachably coupled to the outlet portion of the charger conduit and configured to be coupled directly to a wall of a melting vessel. The auger may have a helical flight with an outer diameter of varying size. A stripper may be movably carried by the charger conduit and may include a stripping tool moved by an actuator with respect to the charger conduit to facilitate transmission of feedstock and/or to strip away clogged feedstock and/or molten material. 1. A melting furnace feedstock charger , comprising:a charger conduit including an inlet to receive feedstock into the charger conduit and an outlet at an outlet portion of the charger conduit to transmit feedstock out of the charger conduit;a feedstock mover coupled to the charger conduit to convey feedstock in a direction from the inlet toward the outlet; anda gate detachably coupled to the charger conduit and including a closure having a movable feed aperture and a closure wall.2. The feedstock charger of claim 1 , further comprising a fluid-cooled panel including a fixed feed aperture for selective registration with the movable feed aperture of the gate closure.3. The feedstock charger of claim 2 , wherein the gate includes mounting rails coupled to the fluid-cooled panel claim 2 , wherein the closure is slidably mounted between the mounting rails.4. The feedstock charger of claim 2 , wherein the gate is fluid-cooled.5. The feedstock charger of claim 1 , further comprising a charger conduit mount including a conduit bracket coupled to the conduit claim 1 , and a gate bracket coupled to the gate claim 1 , wherein the conduit bracket is coupled to the gate bracket.6. The feedstock ...

SYSTEM FOR CONDITIONING STUCCO IN A DUST COLLECTOR

A system for conditioning stucco particulate material includes a vessel having separation chamber in communication with a holding chamber having a holding volume therein. The conditioning system includes the holding volume sufficient to condition the stucco particulate material therein and/or a control system configured to delay discharge of the stucco particulate material from the holding chamber. The system for conditioning stucco particulate material is configured to increase residence time of the stucco particulate material in the holding chamber to promote calcining conditioning therein. 1. A system for conditioning stucco particulate material , the system comprising:a vessel having separation chamber in communication with a holding chamber;the separation chamber having an inlet for supplying the stucco particulate material entrained in a gas, the separation chamber having a collector system configured for separating the stucco particulate material from the gas, the separation chamber having a gas outlet for discharging the gas from the separation chamber, the collector system having a discharge capacity for discharging the stucco particulate material therefrom and into the holding chamber;{'claim-text': ['(a) the holding volume is of a predetermined magnitude sufficient to condition the stucco particulate material in the holding chamber, before being discharged through the stucco outlet; and', '(b) a control unit in communication with a drive unit connected to the conveyor, a sensor in communication with the holding chamber and the control unit, the sensor being configured to generate control signals at a setpoint and transmitting the control signals to the control unit, the control unit being configured to control the drive unit based upon the control signals, to accumulate and retain the stucco particulate material in the holding chamber for conditioning, before being discharged through the stucco outlet.'], '#text': 'the holding chamber defining a holding ...

APPARATUS AND METHOD FOR FEEDING AND PREHEATING A METAL CHARGE IN A MELTING FURNACE

An apparatus for feeding and preheating a metal charge toward a melting furnace of a melting plant, comprising at least one conveyor channel for said metal charge, at least one hood disposed above said conveyor channel and scrap detection means able to identify the profile of the metal charge entering said conveyor channel. The present invention also concerns a plant for melting metal comprising said apparatus, and a method to feed and preheat a metal charge. 2. The apparatus as in claim 1 , wherein at least one hood is mobile at least between a lowered position claim 1 , in which the hood height is equal to a minimum hood height value claim 1 , an intermediate position claim 1 , in which the hood height is equal to an intermediate hood height value claim 1 , and a raised position claim 1 , in which the hood height is equal to a maximum hood height value.3. The apparatus as in claim 1 , wherein it comprises a plurality of hoods disposed and attached in succession by respective rigid mechanical joints and vertically movable in a coordinated manner.4. The apparatus as in claim 1 , wherein it comprises a plurality of hoods disposed and attached in succession by means of respective flexible mechanical joints claim 1 , with each of said hoods there being associated a respective plurality of adjustment means configured to move the respective hood independently from the others.6. The apparatus as in claim 5 , wherein said bands can be moved independently with respect to said frame.7. The apparatus as in claim 1 , wherein said conveyor channel comprises a bottom wall and two lateral channel walls claim 1 , and said at least one hood comprises respective lateral hood walls opposite each other claim 1 , and a covering wall located at the top claim 1 , said lateral hood walls being associated with said lateral channel walls by means of adaptable sealing means.8. The apparatus as in claim 1 , wherein said adjustment means comprise a plurality of lifting devices selected from a ...

METHOD FOR TRASPORTING MOLTEN METAL

To provide a carriage for receiving molten metal with a mechanism for moving a ladle up and down and a method for transporting molten metal to safely move a ladle for receiving a molten metal up and down and transport it. The carriage () for receiving molten metal to transport the ladle that receives molten metal from a furnace (C) comprises a carriage () for travelling on a route (L), guiding columns () that are placed on the carriage (), a frame () that horizontally extends from the guiding columns and moves up and down above the carriage (), a mechanism () for moving the ladle, which mechanism is placed on the frame () and horizontally moves the ladle, and the driver () for moving the frame up and down. 118. -. (canceled)9. A method for transporting molten metal , wherein molten metal is poured from a furnace to a ladle on a carriage for receiving molten metal , and wherein the ladle , which has received molten metal , is transported by the carriage for receiving molten metal , the method comprising the steps of:moving up the ladle on the carriage for receiving molten metal and bringing the ladle close to the furnace in a horizontal direction above the carriage for receiving molten metal;receiving molten metal from the furnace in the ladle, which is brought close to the furnace;moving down the ladle that has received molten metal and then bringing the ladle to a position where it is located away from the furnace in a horizontal direction above the carriage for receiving molten metal; andcausing the carriage for receiving molten metal to travel so as to transport the ladle, which has been lowered and placed away from the furnace.10. The method for transporting molten metal of claim 9 , wherein the furnace has a capacity to pour molten metal into the ladle multiple times claim 9 , andwherein either or both of a height of the ladle and a distance from the furnace to the ladle in the step of receiving molten metal differ from the height or the distance in the step of ...

DEVICE FOR HEAT TREATMENT

A device for heat treatment is provided. The device includes at least one processing chamber arranged in an elongated housing having a heating device and having a transport system for continuous transport of material to be treated through the processing chamber. The transport system has two parallel endless conveyor belts spaced from each other and a plurality of cylinders made of quartz glass that bridge the distance between the conveyor belts. The cylinders are supported on these belts and the material to be treated is supported on the cylinders for the heat treatment. The cylinders are designed as twin tubes, formed by two tubular compartments separated from each other by an intermediate partition. Each tubular compartment has a longitudinal axis and is connected rotation-free at its end with the conveyor belts. 111-. (canceled)12. Heat treatment device comprising:{'b': 3', '2', '4', '3', '5, 'claim-text': [{'b': 4', '4', '1', '5, 'wherein the transport system () has two parallel endless conveyor belts (.) spaced from each other and a plurality of cylinders made of quartz glass that bridge the distance between the conveyor belts and are supported on these belts and on which the material () to be treated is supported for the heat treatment, and'}, {'b': 4', '2', '10', '10', '11', '4', '1, 'wherein the cylinders are designed as twin tubes (.) formed from two tubular compartments (; ′) separated from each other by an intermediate partition (), each tubular compartment having a longitudinal axis and being connected rotation-free at its end with a respective conveyor belt (.).'}], 'at least one processing chamber () arranged in an elongated housing () having a heating device and having a transport system () for continuous transport through the processing chamber () of a material () to be treated,'}134241. Heat treatment device according to claim 12 , wherein the twin tubes (.) are mounted on the conveyor belts (.) such that the longitudinal axes lie in a common ...

CHARGE CARRIER

The invention relates to a charge carrier () for the defined arrangement of processed objects, the charge carrier comprising, as components, at least a support grid () having a plurality of receiving elements for receiving the objects, the receiving elements being connected to the support grid in a form-fitting manner via a plug-in connection, wherein the receiving elements are designed as adapters () for the positioned individual reception of the objects, the adapters being received in adapter receptacles of the support grid so as to be arranged in a positioned manner. 11011. A charge carrier () for the defined arrangement of processed objects , the charge carrier comprising , as components , at least a support grid () having a plurality of receiving elements for receiving the objects , the receiving elements being connected to the support grid in a form-fitting manner via a plug-in connection ,characterized in that{'b': 25', '26, 'the receiving elements are designed as adapters () for the positioned individual reception of the objects, the adapters being received in adapter receptacles () of the support grid so as to be arranged in a positioned manner.'}2. The charge carrier according to claim 1 ,characterized in that{'b': 11', '27', '26', '31', '35', '25', '32', '33', '28, 'the support grid () has at least one row arrangement () of a plurality of adapter receptacles (), the adapter receptacles having a receiving edge () for supporting a support edge () of the adapter (), the receiving edge being formed by at least one web (, ) of a grid structure () of the support grid, and the support edge having a positioning means for being connected to the at least one web in a form-fitting manner.'}3. The charge carrier according to claim 2 ,characterized in that{'b': 31', '43', '28', '11', '35', '44, 'the receiving edge () is designed as a closed frame having a frame opening () formed in the grid structure () of the support grid (), and the support edge () is designed as a ...

APPARATUS AND METHOD OF HEATING PLASTICS MATERIAL PRE-FORMS WITH MOTOR-CONTROLLED HOLDING ELEMENTS FOR THE PLASTICS MATERIAL PRE-FORMS

Described is an apparatus for the heating of plastics material pre-forms with a conveying device which conveys the plastics material pre-forms along a pre-set conveying path, wherein the conveying device () has a circulating conveyor, and a plurality of holding elements for holding the plastics material pre-forms arranged on this conveyor. The holding elements are movable with respect to a longitudinal direction (L) of the plastics material pre-forms to be rotated, and have associated with them in each case drive devices which are controllable independently of one another and which produce at least also the rotational movement of the plastics material pre-forms with respect to the longitudinal direction thereof. 1. An apparatus for the heating of plastics material pre-forms with a conveying device which conveys the plastics material pre-forms along a pre-set conveying path , wherein the conveying device has a circulating conveyor , and a plurality of holding elements for holding the plastics material pre-forms are arranged on the conveyor , and the holding elements are movable with respect to a longitudinal direction (L) of the plastics material pre-forms to be rotated , wherein the holding elements have associated with them in each case drive devices which are controllable independently of one another and which produce at least also the rotational movement of the plastics material pre-forms with respect to the longitudinal direction thereof.2. The apparatus according to claim 1 , wherein the drive devices have in each case electric motors.3. The apparatus according to claim 1 , wherein the drive devices also allow a movement of the holding elements in the longitudinal direction (L) thereof.4. The apparatus according to claim 1 , wherein the apparatus has a cooling device for cooling the conveyor and/or the drive devices.5. The apparatus according to claim 1 , wherein the conveyor is a conveying chain.6. The apparatus according to claim 1 , wherein each drive device ...

OVERFLOW MOLTEN METAL TRANSFER PUMP WITH GAS AND FLUX INJECTION

A method of fluxing or degassing a molten metal residing as a bath in a furnace. The bath of molten metal includes a bath surface height and the method provides at least one rotating impeller in the molten metal bath to initiate a flow of the molten metal. The flow in the molten metal results in elevating a portion of the molten metal above the bath surface height where at least one of a fluxing agent and an inert gas is introduced into the elevated portion of the molten metal. 1. A method for fluxing or degassing a molten metal residing as a bath in a furnace , said bath of molten metal having a bath surface height , the method comprises providing a means to elevate at least a portion of the molten metal above said bath surface height and introducing at least one of a fluxing agent and an inert gas to the elevated portion of the molten metal.2. The method of claim 1 , wherein said method comprises introducing a fluxing agent.3. The method of claim 2 , wherein said fluxing agent is comprised of magnesium and potassium chloride and flouride.4. The method of claim 1 , wherein said elevated portion of the molten metal is confined within at least one of an elongated pumping chamber claim 1 , a volute chamber claim 1 , an elevation chamber claim 1 , and a launder.5. The method of claim 4 , wherein said elevated portion is in a launder.6. An apparatus for introducing flux to molten metal residing as a bath in a furnace claim 4 , said bath of molten metal having a bath surface height claim 4 , the apparatus comprising at least one rotating impeller in the molten metal bath to initiate a flow of said molten metal claim 4 , said flow of molten metal elevating a portion of the molten metal above said bath surface height claim 4 , and a device introducing a fluxing agent to the elevated portion of the molten metal.7. The apparatus of claim 6 , wherein said flux introduction device comprises a hopper claim 6 , at least one feed mechanism claim 6 , and at least one delivery ...

PRODUCTION LINE OVEN

A production line oven includes a product gripping mechanism mounted above one side of the production line oven, a plurality of fixtures, a fixture gripping mechanism mounted under the product gripping mechanism, a lifting mechanism, and a conveyor mounted in other side of the production line oven. The product gripping mechanism includes a first guide rail, a support arm mounted to the first guide rail in sliding, and mechanical gripping members connected to the support arm. The fixture gripping mechanism includes a second guide rail and a clamp mechanism mounted to the second guide rail in sliding. The mechanical gripping members are configured to grip of a product. The fixture gripping mechanism is configured to grasp each the fixture to assemble or dismount the fixtures. 1. A production line oven comprising:a plurality of sides; a first guide rail,', 'a support arm slidably mounted to the first guide rail,', 'mechanical gripping members slidably mounted to the support arm;, 'a product gripping mechanism mounted above one side of the plurality sides of the production line oven and comprisinga plurality of fixtures comprising a receiving portion configured to receive a product; a second guide rail,', 'a clamp mechanism slidably mounted to the second guide rail;, 'a fixture gripping mechanism mounted under the product gripping mechanism, and comprising'}a lifting mechanism mounted to two sides of the plurality sides of the production line oven ; anda conveyor mounted in another side of the plurality sides of the production line oven;wherein the mechanical gripping members are configured to grip of a product,the fixture gripping mechanism is configured to grip of a vacant fixture to assemble or grip one of the plurality of fixtures.2. The production line oven as claimed in claim 1 , wherein the support arm is “Z”-shaped claim 1 , and comprises a main arm and two side arms mounted on each side of the main arm.3. The production line oven as claimed in claim 1 , ...

Furnace roller and roller furnace

The present disclosure relates to a furnace roller and to a roller furnace having such a furnace roller. The furnace roller has a hollow-cylindrical roller body with an interior space. A stopper is arranged in each end-side length portion of the roller body. The stopper is composed of a geopolymer, such as an alkali-activated aluminosilicate.

MICROWAVE HEATING SYSTEM

A microwave heating system heats a hermetic container loaded with a heated object. The hermetic container is accommodated and given pressure by a microwave transparent and pressure resistant module, and is fixed onto a transporting device in a cyclic course. Microwave is generated by a microwave heating device to perform heating. The hermetic container is stirred while the transport device carries and moves the hermetic container. The temperature of the hermetic container or the heated object is measured by a temperature measuring module. The number of times to stir and repeatedly heat the heated object are appropriately determined in the design of the system. The output power and heating time of the microwave heating device and the transmission speed of the transporting device are adjustable during operations of the system, hence forming a closed-loop temperature control system. 1. A microwave heating system , for performing a heating process on a hermetic container loaded with a heated object , the system comprising:a machine frame;a transporting device, arranged onto the machine frame, including a cyclic moving course, the cyclic course including a stirring process;at least one microwave transparent and pressure resistant module, including a pressure resistant container with a space to accommodate the hermetic container and a pressure resistant cover. The pressure resistant container is fixed onto the transporting device, the pressure resistant cover seals the pressure resistant container and simultaneously applies pressure on the hermetic container;a microwave heating device, comprising at least one magnetron controlled module installed onto the machine frame and next to the transporting device, for performing microwave heating on the hermetic container when the transporting device carries and moves the pressure container and the heated object is simultaneously stirred by the stirring process; anda temperature measuring module, comprising at least one ...

Roller hearth furnace and method for heating workpieces

The invention relates to a roller hearth furnace for heating workpieces, comprising at least one furnace chamber for receiving the workpieces, the chamber having at least two lateral furnace walls. At least one transport roller for transporting the workpieces through the furnace chamber is arranged inside the furnace chamber, and each of the furnace walls has at least one opening through which the transport roller can be guided. At least one rolling bearing unit is arranged on each of the outer sides of the furnace walls, said rolling bearing unit being designed to accommodate and support the transport roller outside the furnace chamber. The roller hearth furnace comprises a flushing system for the rolling bearing unit, said flushing system being designed to conduct a flushing gas through the rolling bearing unit, wherein the flushing gas can be conducted from a side of the rolling bearing unit facing away from the furnace wall through the rolling bearing unit and through the opening of the furnace wall into the furnace chamber of the roller hearth furnace. The invention further relates to a method for heating workpieces in such a roller hearth furnace.

Conveyor

A conveyor apparatus which allows a workpiece to be carried in and out of a desired process and lends itself to easy maintenance as well is provided. A conveyor apparatus () includes a first conveyance mechanism (A) capable of carrying a board () into a desired process and a second conveyance mechanism (B) capable of carrying the board () out of the desired process. The first conveyance mechanism (A) includes a first conveying rod () adapted to reciprocate, a first pusher piece () fixed to the first conveying rod () and configured to protrude from the rod, and a switching mechanism adapted to switch the first pusher piece (), by turning the first conveying rod () a predetermined angle, between an engaged position where the first pusher piece () engages with the board () and a retracted position where the pusher piece () is separated from the board (), and the second conveyance mechanism (B) includes a second conveying rod () adapted to reciprocate, a pusher piece () fixed to the second conveying rod () and configured to protrude from the rod, and a switching mechanism adapted to switch the second pusher piece (), by turning the second conveying rod () a predetermined angle, between an engaged position where the pusher piece () engages with the board () and a retracted position where the pusher piece () is separated from the board. 1. A conveyor apparatus comprising a first conveyance mechanism capable of carrying a workpiece into a desired process on a conveyance path along which the workpiece is conveyed; and a second conveyance mechanism capable of carrying the workpiece out of the desired process , characterized in thatthe first conveyance mechanism includes:a first conveying rod adapted to reciprocate along the conveyance path,a first pusher member fixed to the first conveying rod and configured to protrude from the first conveying rod, engage with a rear edge of the workpiece, and carry the workpiece into the process by pushing the workpiece by means of a ...

Conveyor Apparatus

A conveyor apparatus includes a pusher piece () fixed to a conveying rod () adapted to reciprocate along a board conveyance path, and a switching mechanism adapted to switch the pushing piece, by turning the conveying rod a predetermined angle, between an engaged position where the pusher piece () engages with a rear end face of a board () and a retracted position where the pusher piece () does not interfere with the board (). The switching mechanism includes a guide member () provided with a guide hole () adapted to guide a guide rod (). The guide hole () is made up of first and second guide holes ( and ) configured to extend in parallel to each other in a conveyance direction and slanted coupling guide holes () adapted to couple ends of the first and second guide holes ( and ). When the conveying rod () reciprocates, the guide rod () makes a round of the closed-loop guide hole (). When the guide rod () is guided by the first guide hole (), the pusher piece () is positioned at the engaged position. When the guide rod () moves from the first guide hole () to the second guide hole (), the conveying rod () axially rotates a predetermined angle, thereby positioning the pusher piece () at the retracted position. 1. (canceled)2. A The conveyor comprising:a conveying rod adapted to reciprocate along a conveyance path along which a workpiece is conveyed;a pusher member fixed to the conveying rod and configured to protrude from the conveying rod; anda switching mechanism adapted to switch the pusher member, by turning the conveying rod a predetermined angle, between an engaged position where the pusher engages with the workpiece and a retracted position where the pusher member is separated from the workpiece,wherein the switching mechanism includes a guide member related to the conveying rod;the conveying rod includes a guided portion protruding from the conveying rod;the guide member includes a guiding portion adapted to guide the guided portion of the conveying rod;the ...

MELTING PLANT AND METHOD

Melting plant having a melting chamber which by way of a gas protection hood is separated from the environment, wherein the gas protection hood or another part of the melting chamber encasement has a lead through in which an electrode rod for moving an electrode to be melted is guided in a gas-tight manner by way of a sealing means. Hydraulic or pneumatic equalisation means, for exerting on the electrode rod equalisation forces which are in a proportional correlation with the gas pressure prevailing within the melting chamber are provided so as to compensate for the gas-pressure forces acting on the electrode rod. 1. A melting plant having a melting chamber which by way of a gas protection hood is separated from the environment , wherein the gas protection hood has a lead through in which an electrode rod for moving an electrode to be melted is guided in a gas-tight manner by way of a sealing means ,wherein hydraulic or pneumatic equalization means, for exerting on the electrode rod equalization forces which are in a proportional correlation with the gas pressure prevailing within the melting chamber are provided so as to compensate for the gas-pressure forces acting on the electrode rod.2. The melting plant according to claim 1 , wherein the equalization means are specified such that compensation forces which correspond to a positive pressure as well as to a negative pressure in the melting chamber are capable of being exerted.3. The melting plant according to claim 1 , wherein a drive unit for moving the electrode rod is connected to the upper end of the electrode rod.4. The melting plant according to claim 3 , wherein the drive unit comprises a drive spindle which engages with the electrode rod and the drive spindle is provided with an external thread and engages with a corresponding internal thread of the electrode rod.5. The melting plant according to claim 1 , wherein the drive unit by way of at least one guide is connected to a lower traverse claim 1 , and ...

System and method for component maintenance

Aspects of the invention include a transfer chamber constructed inside of or next to a vessel used to retain and degas molten metal. The transfer chamber is in fluid communication with the vessel so molten metal from the vessel is pulled through the vessel by the pump as it is degassed. This helps maintain a generally constant flow of molten metal through the degassing vessel. Other aspects relate to a system and method for efficiently performing maintenance on components positioned in a vessel.

Pressure-Regulated Melting of Solids with Warm Fluids

Devices, systems, and methods for pressure-regulated melting are disclosed. A vessel includes a solids inlet, a fluids outlet, a cavity, and a warm fluids inlet. Solids enter the vessel through the solids inlet. The cavity has an internal pressure. Warm fluids enter the vessel through the warm fluids inlet. The warm liquid being directed into the vessel provides an inlet pressure that produces a backpressure in the solids inlet. A feed rate of the warm liquid is matched to a feed rate of the solids such that the solids are melted directly to a product liquid at the internal pressure. The product liquid is passed out of the vessel through a restriction that maintains the internal pressure in the cavity. 1. A vessel comprising:a solids inlet, the solids inlet directing solids into the vessel;a cavity, the cavity having an internal pressure;a warm fluids inlet, the warm fluids inlet directing a warm liquid into the vessel, wherein an inlet pressure provided by the warm liquid being directed into the vessel produces a backpressure in the solids inlet, and wherein a feed rate of the warm liquid is matched to a feed rate of the solids such that the solids are melted directly to a product liquid at the internal pressure; anda fluids outlet, the fluids outlet directing the product liquid out of the vessel and the fluids outlet comprising a restriction that maintains the internal pressure of the cavity.2. The vessel of claim 1 , wherein at least a portion of the solids are a same compound as the warm liquid.3. The vessel of claim 2 , wherein the solids inlet comprises a screw press.4. The vessel of claim 2 , wherein the fluids outlet comprises a heat exchanger claim 2 , wherein the heat exchanger further heats the product liquid claim 2 , producing a heated product liquid.5. The vessel of claim 4 , wherein the fluids outlet further comprises a gas/liquid separator claim 4 , the gas/liquid separator receiving the heated product liquid from the heat exchanger claim 4 , the ...

Pressure-Regulated Melting of Solids with a Melting Device

Devices, systems, and methods for pressure-regulated melting are disclosed. A vessel includes a solids inlet, a fluids outlet, a cavity, and a melting device. Solids enter the vessel through the solids inlet. The cavity has an internal pressure. The solids inlet has a reducer that produces a first back pressure on the solids in the solids inlet. The melting device heats the vessel, the contents of the vessel, or a combination thereof. The heating rate of the melting device is matched to the feed rate of the solids such that the solids are melted directly to a product liquid at the internal pressure. The product liquid passes through the fluids outlet through a restriction that maintains the internal pressure in the cavity.

Continuous Ore Process and Apparatus Using Plasma

A method of processing ore using a plasma arc reactor includes the steps of first determining the content of the ore, modeling the plasma arc reaction for different stoichiometric ratios of ore to candidate reagents, selecting one or more of candidate reagents pre-mixing the selected reagents with the ore at corresponding stoichiometric ratios, and continuously feeding the pre-mixed ore into a plasma arc reactor, and controlling the plasma arc reaction according to the previously modeled conditions. 1. A continuous ore processing method , comprising the steps of:a. determining the constituents of the particular ore from which the desired metal is to be extracted;b. using process simulation or modeling software to model the plasma arc reaction for an ore having the constituents determined in step a and one or more candidate reagents, said reagents including at least one of a flux and an reducing or oxidizing agent;c. using the software to simulate the plasma arc reaction when different fluxes and/or reducing/oxidizing agents in different stoichiometric ratios are added to the ore;d. selecting a combination of at candidate reagents and corresponding stoichiometric ratios that optimize separation of the desired metal from the ore in the simulated plasma arc reaction;e. pre-processing the ore to obtain a powder or crushed material;f. adding the selected combination of at least one flux and/or reducing/oxidizing agent to the material;a. feeding the material with the added flux and/or reducing/oxidizing agent into a plasma arc reactor to separate the desired metal from the ore;b. controlling the plasma reaction by moving electrodes in the plasma arc reactor;g. continuously cooling the reactor to achieve rapid cooling and ensure that vaporized metal is retained in the reactor; andh. removing the desired metal from the plasma arc reactor.2. A continuous ore process method as claimed in claim 1 , wherein step g includes the step of circulating coolant through passages in a ...

CARBON BAKING FURNACE WITH SYSTEM FOR CONTROLLING MOVEMENT OF SACRIFICIAL MEDIUM AND ANODES THROUGH THE BAKING PATH

A carbon baking furnace has at least one vertical baking shaft with a system and method for positioning green carbon bodies to be baked at the tops of the vertical baking paths and ringing the green carbon bodies with a sacrificial medium such as packing coke. The disclosure provides a carbon baking furnace having a system and method for unloading baked carbon bodies at the bottom of an array of baking paths while supporting the column of carbon bodies remaining in the baking path. The disclosure provides a volatile extraction system that extracts volatile fumes from the upper portion of the furnace and introduces the volatile fumes to the burners in the baking portion of the furnace. This system allows the volatile fumes to be selectively directed to an afterburner and automatically delivered to the afterburner during an emergency. 1. A vertical path carbon baking furnace for baking green carbon articles; the furnace comprising:a furnace body defining a substantially vertical baking path adapted to receive the carbon article; the vertical baking path having a volatile extraction zone disposed above a baking zone;the furnace body defining a volatile extraction inlet in communication with the baking path; the volatile extraction inlet being disposed in the volatile extraction zone of the baking path;the furnace body defining baking fume channels disposed on opposite sides of the baking path to receive baking fumes;a burner associated with each the baking fume channel; andthe volatile extraction inlet in fluid communication with a burner such that volatile fumes extracted from the baking path through the volatile extraction inlet are delivered to the burner for combustion.2. A vertical path carbon baking furnace for baking green carbon articles; the furnace comprising:a furnace body defining a substantially vertical baking path adapted to receive the carbon article; the baking path having upper and lower ends;a sacrificial medium delivery system disposed at the top of ...

MOBILE REMOVABLE HEARTH FOR FURNACE AND TRANSPORTER

A mobile removable hearth skid for a furnace and/or cooling chamber including: a base, the base including a top horizontal surface with a supporting a refractory platform which possesses a perimeter edge including a front perimeter edge, a rear perimeter edge, and at least two side perimeter edges. The rear perimeter edge and the at least two side perimeter edges form a continuous shoulder extending beyond the base perimeter edge. Also disclosed is a furnace and/or cooling chamber including a refractory lining with a continuous ledge at the bottom edges of the refractory linings mounted on the rear wall and the at least two side walls. A gap is formed by the furnace supports between a bottom surface of the ledge and a surface supporting the furnace supports. The shoulder and ledge form a removable refractory seal. 1. A mobile removable hearth skid for a furnace and/or cooling chamber comprising:a base, said base including a top horizontal surface with a base perimeter edge and at least two supports extending from said top horizontal surface; and,a refractory platform supported by said top horizontal surface and having a refractory perimeter edge including a front perimeter edge, a rear perimeter edge, and at least two side perimeter edges;wherein said rear perimeter edge and said at least two side perimeter edges form a continuous shoulder extending beyond said base perimeter edge, said shoulder having a shoulder horizontal surface and a shoulder vertical surface.2. The mobile removable hearth skid for a furnace and/or cooling chamber as recited in wherein said at least two supports are two supports claim 1 , each of said two supports extending under two opposing sides of said base perimeter edge.3. The mobile removable hearth skid for a furnace and/or cooling chamber as recited in wherein said refractory surface is fabricated at least partly from firebrick.4. The mobile removable hearth skid for a furnace and/or cooling chamber as recited in further comprising a ...

HEAT PROTECTION ASSEMBLY FOR A CHARGING INSTALLATION OF A METALLURGICAL REACTOR

The invention relates to a heat protection assembly () for a charging installation () of a metallurgical reactor. In order to increase the lifetime of a heat protection shield in a charging installation of a metallurgical reactor, the assembly () comprises a plurality of heat protection tiles () disposed adjacent to each other along a surface The assembly further comprises a plurality of heat protection panels (), each panel () comprising a common base plate () to which a plurality of tiles () are connected, which heat protection panels () are configured to be mounted on the charging installation () adjacent to each other. 1. Heat protection assembly for a charging installation of a metallurgical reactor , the assembly comprising a plurality of heat protection tiles disposed adjacent to each other along a surface and comprising a plurality of heat protection panels , each panel comprising a common base plate to which a plurality of tiles are connected , wherein a gap is provided between adjacent tiles , which heat protection panels are configured to be mounted on the charging installation adjacent to each other.2. (canceled)3. Heat protection assembly according to claim 1 , wherein the tiles comprise a support structure on which a refractory material is disposed.4. Heat protection assembly according to claim 3 , wherein the refractory material is refractory concrete.5. Heat protection assembly according to claim 1 , wherein the gap is filled with a material which is volatile under the operating temperatures of the metallurgical reactor.6. Heat protection assembly according to claim 5 , wherein said volatile material is cardboard.7. Heat protection assembly according to claim 3 , wherein the support structure comprises a mesh on which the refractory material is disposed.8. Heat protection assembly according to claim 7 , wherein the mesh is hexagonal.9. Heat protection assembly according to claim 1 , wherein spacer members defining a space separating the tiles from ...

METHOD AND ARRANGEMENT FOR FEEDING FINE-GRAINED MATTER TO A CONCENTRATE BURNER OR A MATTE BURNER OF A SUSPENSION SMELTING FURNACE AND CONTROLLING MEANS AND COMPUTER PROGRAM PRODUCT

The invention relates to a method and to an arrangement for feeding fine-grained matter to a concentrate burner () or a matte burner of a suspension smelting furnace (). The invention relates also to a controlling means for controlling feeding of fine-grained matter to a concentrate burner () or a matte burner of a suspension smelting furnace () in an arrangement for feeding fine-grained matter to a concentrate burner () or a matte burner of a suspension smelting furnace (). The invention relates also to controlling means for controlling feeding of fine-grained matter to a concentrate burner () or a matte burner of a suspension smelting furnace () in an arrangement for feeding fine-grained matter to a concentrate burner () or a matte burner of a suspension smelting furnace () and to a computer program product. 112. A method for feeding fine-grained matter to a concentrate burner () or a matte burner of a suspension smelting furnace () , wherein the method comprises{'b': 3', '4', '1', '2, 'a dosing step for feeding fine-grained matter from a dosing bin () to a screw conveyor () that is in communication with the concentrate burner () or the matte burner of the suspension smelting furnace (),'}{'b': 3', '4', '6', '3', '4, 'continuously measuring the mass of the fine-grained matter that is fed from the dosing bin () to the screw conveyor () by means of a loss-in-weight means () and calculating a mass flow rate by using the continuously measured mass of the fine-grained matter that is fed from the dosing bin () to the screw conveyor (),'}{'b': '4', 'continuously adjusting the speed of the screw conveyor () based on the mass flow rate, and'}{'b': 3', '3', '7', '3', '3', '8', '3', '7', '7', '3', '8', '3, 'determining the mass of the fine-grained matter in the dosing bin () and performing a filling step for filling fine-grained matter into the dosing bin () from a filling bin () located at a level above the dosing bin (), if the weight of the fine-grained matter in the ...

Heat treatment device comprising a refractory envelope

A device for the heat treatment of a product includes a housing, and a conveyor for conveying the product between an inlet of the housing and an outlet of the housing. The conveyor includes a screw which is mounted so as to turn in the housing according to a geometric axis of rotation and comprising an actuator for rotating the screw according to said axis, with ohmic heating of the screw. Accordingly, the housing comprises an envelope consisting of a refractory material through with the screw extends, said envelope being shaped in the form of a tube, the main inner surface of which follows contours of the screw. 1. A device for subjecting a substance to heat treatment , the device comprising:an enclosure;a conveyor for conveying the substance between an inlet of the enclosure and an outlet of the enclosure, the conveyor comprising a screw mounted to rotate inside the enclosure about an axis of rotation and including an actuator for driving the screw in rotation about said axis, the screw itself not having a rotary shaft;Joule effect heating of the screw;wherein the enclosure comprises an envelope of refractory material having the screw extending therethrough, said envelope being shaped as a tube having a main inner surface following the outlines of the screw.2. The device according to claim 1 , wherein the envelope is made of refractory ceramic.3. The device according to claim 1 , wherein the envelope is in the shape of a hollow cylinder.4. The device according to claim 1 , wherein an inner radius of the envelope is greater than the outer radius of the screw by a value lying in the range 1 mm to 20 mm.5. The device according to claim 4 , wherein the inner radius of the envelope is greater than the outer radius of the screw by a value lying in the range 5 mm to 15 mm.6. The device according to claim 1 , wherein the envelope is made up of a succession of segments.7. The device according to claim 6 , wherein the various segments are shaped to engage in one another.8. ...

SAMPLE HEATING DEVICE

A sample heating device includes: a rail-shaped disposal rail extending in one direction in a horizontal plane so that sample boats after heating are arranged and placed in a straight line; a disposal tray that houses the sample boat pushed-out from one end of the disposal rail; a sample boat conveying portion that places the sample boat after the heating at a predetermined placing position on the disposal rail; and a sample boat push-out portion that is positioned closer to the other end side of the disposal rail than the placing position when the sample boat is placed on the disposal rail and that is displaced toward the one end side of the disposal rail after the sample boat is placed at the placing position to slide the sample boats on the disposal rail toward the one end side. 1. A sample heating device comprising:a heating furnace that includes a space for housing a sample boat holding a sample to be heated and heats the sample held in the sample boat inserted into the space;a rail-shaped disposal rail extending in one direction in a horizontal plane so that sample boats after heating in the heating furnace are arranged and placed in a straight line;a disposal tray that is provided on one end side of the disposal rail and houses the sample boat pushed-out from one end of the disposal rail;a sample boat conveying portion that holds the sample boat after the heating in the heating furnace and places the sample boat at a placing position set at a position on the disposal rail at a distance longer than or equal to a length of the sample boat from the one end; anda sample boat push-out portion that is positioned closer to the other end side of the disposal rail than the placing position when the sample boat is placed on the disposal rail by the sample boat conveying portion and that is displaced on the disposal rail toward the one end side of the disposal rail after the sample boat is placed at the placing position to thereby slide the sample boats on the disposal ...

FEED MIXTURE DISTRIBUTION DEVICE

A feed mixture distribution device configured to even out a feed of feed mixture in an annular feed mixture feed channel of a burner. The feed mixture distribution device includes a cylindrical member having a cylindrical wall, a first end, a second end, and a longitudinal central axis X. The cylindrical member is at the first end provided with rectangular flat plate means, which extend radially from the cylindrical wall of the cylindrical member and which are arranged symmetrically about the longitudinal central axis X of the cylindrical member. The cylindrical wall of the cylindrical member is between the rectangular flat plate and the second end provided with helical plate means arranged symmetrically about the longitudinal central axis X of the cylindrical member. 128.-. (canceled)29. A feed mixture distribution device configured to evening out a feed of feed mixture in an annular feed mixture feed channel of a burner , wherein the feed mixture distribution device comprises:a cylindrical member having a cylindrical wall, a first end, a second end, and a longitudinal central axis X, andwherein the cylindrical member is at the first end provided with rectangular flat plate means, which extend radially from the cylindrical wall of the cylindrical member and which are arranged symmetrically about the longitudinal central axis X of the cylindrical member,whereinthe cylindrical wall of the cylindrical member is between the rectangular flat plate means and the second end provided with at least one helical plate means arranged symmetrically about the longitudinal central axis X of the cylindrical member,each helical plate means extend towards the second end of the cylindrical wall of the cylindrical member in a helical manner about the longitudinal central axis X of the cylindrical member,each helical plate means has a downstream end and a feed mixture bearing surface, wherein the width of the feed mixture bearing surface as measured along a line normal to the ...

METHOD AND ARRANGEMENT FOR FEEDING FINE-GRAINED MATTER TO A CONCENTRATE OR MATTE BURNER OF A SUSPENSION SMELTING FURNACE

The invention relates to a method and to an arrangement for feeding fine-grained matter to a concentrate or matte burner () of a suspension smelting furnace (). The arrangement comprising a fluidization arrangement () for feeding fluidized fine-grained matter into a dosing bin (), and a conveyor means () for feeding fluidized fine-grained matter from the dosing bin () to the concentrate or matte burner () of the suspension smelting furnace (), and a loss-in-weight controller () between the dosing bin () and the conveyor means (). The arrangement comprises an impact cone () arranged below a filling valve () between the fluidization arrangement () and the dosing bin () for distributing fluidized fine-grained matter flowing from the fluidization arrangement () within the dosing bin (). 1. An arrangement for feeding fine-grained matter to a concentrate or matte burner of a suspension smelting furnace ,wherein the arrangement comprises a feeding bin configured for feeding fine-grained matter into the fluidization arrangement,wherein the arrangement comprising a fluidization arrangement for producing fluidized fine-grained matter and for feeding fluidized fine-grained matter into a dosing bin that is located at a level below the fluidization arrangement,wherein the dosing bin is configured for feeding fluidized fine-grained matter to a conveyor assembly that is located at a level below the dosing bin and that is in communication with the concentrate or matte burner of the suspension smelting furnace for feeding fluidized fine-grained matter to the concentrate or matte burner of the suspension smelting furnace by means of the conveyor assembly,wherein the arrangement comprises a loss-in-weight controller between the dosing bin and the conveyor assembly for controlling the feeding of fluidized fine-grained matter to the conveyor assembly,wherein the arrangement comprises a scale assembly for determining the weight of the fluidized fine-grained matter in the dosing bin, ...

METHOD AND ARRANGEMENT FOR FEEDING FINE-GRAINED MATTER TO A CONCENTRATE OR MATTE BURNER OF A SUSPENSION SMELTING FURNACE

The invention relates to a method and to an arrangement for feeding fine-grained matter to a concentrate or matte burner () of a suspension smelting furnace (). The arrangement comprising a fluidization arrangement () for feeding fluidized fine-grained matter into a dosing bin (), and a conveyor means () for feeding fluidized fine-grained matter from the dosing bin () to the concentrate or matte burner () of the suspension smelting furnace (), and a loss-in-weight controller () between the dosing bin () and the conveyor means (). The arrangement comprises an impact cone () arranged below a filling valve () between the fluidization arrangement () and the dosing bin () for distributing fluidized fine-grained matter flowing from the fluidization arrangement () within the dosing bin (). 1. A method for feeding fine-grained matter to a concentrate or matte burner of a suspension smelting furnace , wherein the method comprisesa first feeding step for feeding fine-grained matter into a fluidization arrangement,a fluidization step for producing fluidized fine-grained matter with a fluidization arrangement,a second feeding step for feeding fluidized fine-grained matter from the fluidization arrangement into a dosing bin that is located at a level below the fluidization arrangement,a third feeding step for feeding fluidized fine-grained matter from the dosing bin to a conveyor means that is located at a level below the dosing bin and that is in communication with the concentrate or matte burner of the suspension smelting furnace for feeding fluidized fine-grained matter to the concentrate or matte burner of the suspension smelting furnace with the conveyor means,controlling the feeding of fluidized fine-grained matter from the dosing bin to the conveyor means by means of a loss-in-weight controller in the third feeding step,determining the weight of the fluidized fine-grained matter in the dosing bin, andwherein the second feeding step comprises opening a filling valve ...

Arrangement for feeding fine-grained matter to a concentrate or matte burner of a suspension smelting furnace

The invention relates to an arrangement for feeding fine-grained matter to a concentrate or matte burner ( 1 ) of a suspension smelting furnace ( 2 ). The arrangement includes a screw conveyor ( 3 ) comprising a tube means ( 4 ) having an inlet opening ( 6 ), an downward-facing outlet opening ( 7 ), and a helical screw ( 8 ) for moving fine-grained matter from the inlet opening ( 6 ) to the downward-facing outlet opening ( 7 ). The downward-facing outlet opening ( 7 ) is provided with a distribution means ( 10 ). The distribution means ( 10 ) has a free end ( 11 ) configured for feeding fine-grained matter into the downward-facing outlet opening ( 7 ). The helical screw ( 8 ) of the screw conveyor ( 3 ) extends from the direction of the inlet opening ( 6 ) at least partly over the downward-facing outlet opening ( 7 ).

HEAT DOME TEMPERATURE REGULATION SYSTEM

A thermoplastic melter kettle having a heat dome chamber from which combustion gases are exhausted through a conduit that connects between a top of the heat dome chamber and the top of the melter kettle. An adjustable venting arrangement coupled to the conduit allows for adjustment of the flow of exhaust gases through the conduit. 1. In a melter kettle for melting thermoplastic pavement marking material wherein the melter kettle is provided with a combustion chamber and a heat dome chamber in the bottom of melter kettle the improvement wherein an exhaust gas conduit is provided between the top of the heat dome chamber and the top of the melter kettle through which exhaust gas conduit combustion gases received in the heat dome chamber can be exhausted from the top of the melter kettle.2. The melter kettle of claim 1 , wherein the exhaust gas conduit is provided with cooperating vents that can be adjusted to regulate the flow of exhaust gases therethrough.3. The melter kettle of claim 1 , wherein the cooperating vents are provided in adjacent coaxial rotating structures.4. The melter kettle of claim 1 , wherein the melter kettle further include rotating agitators that rotate about the exhaust gas conduit.5. The melter kettle of claim 1 , wherein the exhaust gas conduit comprises a dome chimney stack tube that is located within a tube drive shaft that rotates about the dome chimney stack tube.6. The melter kettle of claim 5 , further including rotating agitators that are attached to the tube drive shaft to rotate with the tube drive shaft.7. The melter kettle of claim 5 , further including a motor positioned above the top of the melter kettle which drives rotation of the tube drive shaft.8. The melter kettle of claim 6 , further including a motor positioned above the top of the melter kettle which drives rotation of the tube drive shaft.9. The melter kettle of claim 1 , further comprising a kettle side heat chamber through which combustion gases in the combustion ...

THERMAL REDUCTION APPARATUS FOR METAL PRODUCTION, GATE DEVICE, CONDENSING SYSTEM, AND CONTROL METHOD THEREOF

Disclosed is a thermal reduction apparatus. The thermal reduction apparatus according to the exemplary embodiment includes: a preheating unit which preheats a to-be-reduced material and loads the to-be-reduced material into a reducing unit; the reducing unit which is connected to the preheating unit and in which a thermal reduction reaction of the to-be-reduced material occurs; a cooling unit which is connected to the reducing unit and from which the to-be-reduced material flowing into the cooling unit is unloaded to the outside; a gate device which is installed between the preheating unit and the reducing unit; a gate device which is installed between the reducing unit and the cooling unit; a condensing device which is connected to the reducing unit and condenses a metal vapor; a first blocking unit which is installed in the reducing unit; and a second blocking unit which is installed in the reducing unit so as to be spaced apart from the first blocking unit. 1. A gate device of a thermal reduction apparatus , which opens and closes a portion between a preheating unit and a reducing unit or a portion between the reducing unit and a cooling unit of the thermal reduction apparatus , the gate device comprising:a first gate device which is installed between the preheating unit and the reducing unit; anda second gate device which is installed between the reducing unit and the cooling unit,wherein the first gate device or the second gate device includes: a valve housing which is installed on a movement route of the to-be-reduced material and defines an internal space; valve body members which are installed in the valve housing and have a passage through which the to-be-reduced material passes; and a valve door unit which is movably installed in the valve housing and selectively comes into close contact with the valve body members to open and close the passage.2. The gate device of claim 1 , wherein the valve body member includes: a frame which forms a passage; a sealing ...

HOT MELT ADHESIVE SUPPLY AND METHODS ASSOCIATED THEREWITH

A melter for heating and melting particulate hot melt adhesive into a liquefied form is disclosed. The melter includes a heated receiving device having an interior with an inlet configured to receive the particulate hot melt adhesive and an outlet. A flexible hopper holds a supply of the particulate hot melt adhesive and a particulate hot melt adhesive feed device allows the particulate hot melt adhesive to be directed from the flexible hopper to the inlet of the heated receiving device. 1. A melter for heating and melting particulate hot melt adhesive into a liquefied form , the melter comprising:a heated receiving device having an interior with an inlet configured to receive the particulate hot melt adhesive and an outlet, the heated receiving device operative to heat and melt the particulate hot melt adhesive, and direct the hot melt adhesive as a liquefied form to the outlet;a flexible hopper configured to hold a supply of the particulate hot melt adhesive; anda particulate hot melt adhesive feed device allowing the particulate hot melt adhesive to be directed from the flexible hopper to the inlet of the heated receiving device.2. The melter of claim 1 , wherein the flexible hopper further comprises a bag.3. The melter of claim 2 , wherein the bag further comprises a fabric.4. The melter of claim 1 , wherein the flexible hopper further comprises at least a first section that can be articulated relative to another section to move particulate adjacent to a wall of the flexible hopper toward a central interior location of the flexible hopper.5. The melter of claim 1 , further comprising an articulation device comprising a driven element operative to move the particulate hot melt adhesive held in the flexible hopper.6. The melter of claim 5 , wherein the flexible hopper comprises movable wall portions and the articulation device moves the wall portions to move the particulate hot melt adhesive held in the flexible hopper.7. The melter of claim 6 , wherein at least a ...

Dual-Function Impeller for a Rotary Injector

The dual-function impeller can be rotated in molten metal in a direction of rotation, as part of a rotary injector. The impeller can have a body having an axis, a plurality of blades circumferentially interspaced around an axis, and an aperture coinciding with the axis. The blades having both a radially extending portion facing the direction of rotation and collectively generating a radial flow component upon said rotation, and a slanted portion also facing the direction of rotation, inclined relative to a radial plane, and collectively generating an axial flow component directed away from the rotary injector upon said rotation. 1. A dual-function impeller for rotation in molten metal in a direction of rotation , as part of a rotary injector , the impeller comprising:a body having an axis and a central injection path along the axis,a set of radial blade portions circumferentially interspaced from one another around the axis, located adjacent to the injection path, each having a radial blade leading face facing the direction of rotation, the radial blade leading faces collectively configured for generating a radial flow component upon said rotation,a plurality of channels, each channel extending between a corresponding pair of adjacent radial blade portions;a set of radial surfaces circumferentially interspaced from one another around the axis, each one of the radial surfaces forming an axial limit to a corresponding one of the channels; anda set of axial blade portions circumferentially interspaced from one another around the axis, radially-outwardly from the set of radial blade portions, each having a leading face facing the direction of rotation, the axial blade leading faces being inclined relative to a radial plane and collectively configured for generating an axial flow component directed axially away from the rotary injector upon said rotation.2. The dual function impeller of wherein the axial blade leading faces extend continuously from corresponding ones of ...

CARRIAGE FOR RECEIVING MOLTEN METAL WITH A MECHANISM FOR MOVING A LADLE UP AND DOWN, AND A METHOD FOR TRANSPORTING MOLTEN METAL

To provide a carriage for receiving molten metal with a mechanism for moving a ladle up and down and a method for transporting molten metal to safely move a ladle for receiving a molten metal up and down and transport it. The carriage () for receiving molten metal to transport the ladle that receives molten metal from a furnace (C) comprises a carriage () for travelling on a route (L), guiding columns () that are placed on the carriage (), a frame () that horizontally extends from the guiding columns and moves up and down above the carriage (), a mechanism () for moving the ladle, which mechanism is placed on the frame () and horizontally moves the ladle, and the driver () for moving the frame up and down. 1. A carriage for receiving molten metal with a mechanism for moving a ladle up and down , wherein the carriage for receiving molten metal transports the ladle for receiving molten metal , the carriage for receiving molten metal comprising:a carriage for travelling on a route;guiding columns that are placed on the carriage for travelling;a frame for moving up and down that horizontally extends from the guiding columns and that moves up and down above the carriage for travelling;a mechanism for moving the ladle, which mechanism is placed on the frame and horizontally moves the ladle; anda driver for moving the frame up and down.2. The carriage for receiving molten metal with a mechanism for moving a ladle up and down of claim 1 , wherein the frame has two holding rollers claim 1 , which are disposed with a vertical space therebetween claim 1 ,wherein a guiding device for the rollers that has a vertical surface, on which the holding rollers roll, is provided to each of the guiding columns.3. The carriage for receiving molten metal with a mechanism for moving a ladle up and down of claim 2 , wherein the frame is suspended at two locations by chains claim 2 , andwherein the driver for moving the frame up and down moves the frame up and down by means of the chains.4. ...

SOLID AGGLOMERATE OF FINE METAL PARTICLES COMPRISING A LIQUID OILY LUBRICANT AND METHOD FOR MAKING SAME

Described are solid agglomerates of fine metal particles and methods for manufacturing same. A liquid oily lubricant is used in the manufacture of the solid agglomerates. The manufacturing comprises blending fine metal particles with the liquid oily lubricant and compacting the oily metallic mixture obtained to desired solid form. Advantageously, the solid agglomerates possess a desirable density, a suitable resistance to crumbling and dusting during handling, and they can resist to high temperature and to humidity. Solid agglomerated metal products, according to the invention, may be useful for different purposes such as quality charge material for steel plants, blast furnaces and foundries. 1. A solid agglomerate of metal particles comprising:fine metal particles; anda liquid oily lubricant;wherein said fine metal particles and liquid oily lubricant are compacted together to form said solid agglomerate.2. The agglomerate of claim 1 , wherein the liquid oily lubricant is a mineral oil claim 1 , a vegetal oil or an animal oil.3. The agglomerate of claim 2 , wherein the vegetal oil is canola oil.4. The agglomerate of claim 1 , wherein the liquid oily lubricant is present at about 2.5 to about 10% w/w.5. The agglomerate of claim 1 , wherein the fine metal particles comprise Direct Reduced Iron (DRI).6. The agglomerate of claim 1 , wherein fine metal particles comprise at least 70% total iron.7. The agglomerate of claim 1 , wherein the fine metal particles comprise at least 0.5% w/w metallic iron.8. The agglomerate of claim 1 , wherein the fine metal particles comprise a ferroalloy claim 1 , graphite claim 1 , Si and/or mixtures thereof.9. The agglomerate of claim 1 , wherein said fine metal particles consists of a mixture of particles having a size of about 600 microns or less.10. The agglomerate of claim 1 , wherein said fine metal particles consists of a mixture of particles claim 1 , said mixture having no more than 30% w/w of its particles with a size greater that ...

VERTICAL HEAT TREATMENT APPARATUS

Disclosed is a vertical heat treatment apparatus. The apparatus includes: a heat treatment furnace provided with a furnace inlet at a lower end thereof; a cover unit disposed on the furnace inlet of the heat treatment furnace; a cover unit opening/closing mechanism configured to support the cover unit in a cantilever manner from a bottom side of the cover unit; and an auxiliary mechanism configured to press the cover unit from the bottom side of the cover unit when the cover unit is disposed on the furnace inlet. The auxiliary mechanism is provided with a toggle mechanism. 1. A vertical heat treatment apparatus comprising:a heat treatment furnace provided with a furnace inlet at a lower end thereof;a cover unit disposed on the furnace inlet of the heat treatment furnace;a cover unit opening/closing mechanism configured to support the cover unit in a cantilever manner from a bottom side of the cover unit; andan auxiliary mechanism configured to press the cover unit from the bottom side of the cover unit when the cover unit is disposed on the furnace inlet,wherein the auxiliary mechanism is provided with a toggle mechanism.2. The vertical heat treatment apparatus of claim 1 , wherein the cover unit includes:a furnace inlet shielding unit configured to block the furnace inlet, anda support member configured to support the furnace inlet shielding unit through a plurality of elastic bodies,the cover unit opening/closing mechanism supports the cover unit in a cantilever manner from a bottom side of the support member, andthe auxiliary mechanism presses the cover unit from the bottom side of the support member.3. The vertical heat treatment apparatus of claim 2 , wherein claim 2 , when the auxiliary mechanism presses the support member from the bottom side of the support member claim 2 , the auxiliary mechanism presses an area inside of a region surrounded by contact points of the support member and the plurality of elastic bodies. This application is based on and claims ...

WORKPIECE TRANSFER APPARATUS FOR FURNACE

A workpiece transfer apparatus for a furnace includes a carrier having access to a furnace and carrying a workpiece placed thereon, a controller for controlling movement of the carrier, the controller for determining an amount of deformation of the carrier by heat of the furnace, and the controller for determining an adjustment to the attitude of the carrier on the basis of the amount of deformation of the carrier, wherein when handing over the workpiece for a next process tool, the carrier is moved into an adjusted attitude. 1. workpiece transfer apparatus for a furnace , comprising: a controller controlling movement of the carrier,', 'the controller determining an amount of deformation of the carrier by heat of the furnace, and', 'the controller determining an adjustment to the attitude of the carrier on the basis of the amount of deformation of the carrier,', 'wherein when handing over the workpiece for a next process tool, the carrier is moved into an adjusted attitude., 'a carrier having access to a furnace and carrying a workpiece placed thereon,'}2. The transfer apparatus according to claim 1 , wherein:a droop amount of a distal end of the carrier is determined, andat least one of a height and an angle of a placement surface of the carrier is adjusted.3. The transfer apparatus according to claim 1 , further comprising:a robot having an arm to which the carrier is attached; anda sensor detecting an arrival of part of the carrier at a specific position,wherein the amount of deformation of the carrier is determined on the basis of the attitude of the carrier at a time when the carrier is detected by the sensor.4. The transfer apparatus according to claim 3 , wherein:the amount of deformation of the carrier is determined and the attitude is adjusted every time a workpiece is taken out of the furnace by the carrier.5. The transfer apparatus according to claim 3 , wherein:the carrier is detected by the sensor after the workpiece is handed over for the next process ...

VANE HANDLING FRAME

A framework for handling blades, comprising a bottom wall carrying a plurality of intermeshed longitudinal and transverse partitions forming a grid defining a plurality of housings each able to receive a blade. The framework comprises rods for supporting and holding the blades remote from the base wall and said longitudinal and transverse partitions, said rods crossing the longitudinal and transverse partitions and extending into the housings and being produced, at least externally, from a thermally insulating material. 1. A frame for handling vanes , comprising a bottom wall bearing a plurality of longitudinal partitions and transverse partitions forming a grid defining a plurality of housings , each housing capable of receiving a van , wherein each housing comprises rods for supporting and holding the vanes away from the bottom wall and away from the plurality of longitudinal partitions and transverse partitions , wherein said rods cross the plurality of longitudinal partitions and transverse partitions and extend into the housings and are produced , at least externally , from a thermally insulating material.2. The frame according to claim 1 , wherein the rods extend substantially parallel to at least one of the longitudinal partitions and the transverse partitions.3. The frame according to claim 1 , wherein each housing is crossed by three groups of rods claim 1 , each group of rods formed of at least two rods substantially parallel to each other claim 1 , wherein the at least two rods of a first group support and hold the vanes away from the bottom wall claim 1 , wherein the at least two rods of a second group hold the vanes away from the longitudinal partitions claim 1 , and wherein the at least two rods of a third group hold the vanes away from the transverse partitions.4. The frame according to claim 1 , wherein each rod is formed of a rigid metal wire around which tubes made of ceramic material are engaged.5. The frame according to claim 1 , wherein the ...

Method and System for Performing Chemical Processes

The invention relates to a method for performing chemical processes, where raw materials are heated, wherein a melt pool is produced in a tank or reactor using low-melting metals or metal alloys, wherein the raw materials are metered directly into the melt pool in the lower part of the tank or reactor. 17-. (canceled)8. A system for performing chemical processes , comprising a tank or reactor for accommodating a melt pool of a low-melting metal or a low-melting metal alloy , wherein the tank or reactor is configured in a lower part with a feeding device for metered feeding of raw materials directly into the melt pool.9. (canceled)10. The system as claimed in claim 8 , wherein the feeding device feeds a solid raw material.11. The system as claimed in claim 8 , wherein the tank or reactor is equipped with a heating element in the lower part.12. The system as claimed in claim 8 , wherein the tank or reactor includes a cylindrical heating element.13. The system as claimed in claim 12 , wherein the cylindrical heating element is a cylindrical induction heater.14. The system as claimed in claim 12 , wherein the cylindrical heating element is configured for achieving a temperature gradient over a height of the tank or reactor.15. The system as claimed in claim 8 , wherein the tank or reactor is configured with at least one of slowing barriers claim 8 , gratings claim 8 , screens claim 8 , or spiral conduits. The invention relates to a method for performing chemical processes in which raw materials are heated, wherein a melt pool is produced in a tank or reactor using heated-up, low-melting metals or metal alloys. The invention also relates to a system for performing chemical processes, comprising a tank or reactor for accommodating a melt pool of a low-melting metal or a low-melting metal alloy.In the Polish patent application P-372777, a reactor for performing thermal depolymerization processes on plastics waste products has been presented. This reactor is equipped with a ...

ROLLER TRANSPORT ASSEMBLY FOR TRANSPORTING ROLLERS TO AND FROM A ROLLER HEARTH FURNACE

A roller transport assembly includes a cart assembly and a roller carriage assembly. The roller carriage assembly is slidably mounted to the cart assembly and has at least one chamber for housing a roller. Each of the chambers includes a linear rail extending along a first axis and a roller coupling device attached to and slidable along the linear rail. The roller coupling device is operable to couple to the roller and move the roller along the first axis adjacent and parallel with the linear rail. 1. A roller transport assembly comprising:a cart assembly; anda roller carriage assembly slidably mounted to the cart assembly, the roller carriage assembly having at least one chamber to hold a roller, wherein each of the at least one chambers includes a linear rail extending along a first axis and a roller coupling device attached to and slidable along the linear rail, and the roller coupling device is operable to couple to the roller and move the roller along the first axis adjacent and parallel with the linear rail.2. The roller transport assembly of claim 1 , wherein the cart assembly includes a body and a plurality of wheels attached to the body claim 1 , the plurality of wheels includes at least one pair of rail wheels operable to move along a rail extending along a second axis transverse the first axis.3. The roller transport assembly of claim 1 , wherein the cart assembly further includes a carriage support mechanism having a pair of linear bearings that are arranged on opposite sides of the cart assembly claim 1 , and the roller carriage assembly is mounted on the carriage support mechanism and is slidable along the first axis by way of the carriage support mechanism.4. The roller transport assembly of further comprising a height adjustment mechanism disposed on the cart assembly and operable to adjust a height of the cart assembly.5. The roller transport assembly of further comprising at least one heat shield positioned at and extending along one or more of the ...

THERMOPLASTIC MELTING KETTLE MATERIAL CIRCULATION SYSTEM

A molten thermoplastic circulation system that is used in conjunction with thermoplastic melter kettles. The molten circulation system includes a vertical material transfer tube that is coupled to a melter kettle and includes an auger. The vertical material transfer tube is coupled to the top and bottom of a melter kettle so as to transfer molten thermoplastic between the bottom and top of the melter kettle. The vertical material transfer tube is at least partially surrounded by a heat chamber through which a heated fluid such as hot combustion gases or heated oil can flow. In use molten thermoplastic material that is heated at a higher temperature at the bottom of a melter kettle near the combustion chamber is transferred through the vertical material transfer tube to the top of the melter kettle to improve melting efficiency. 1. In a melter kettle for melting thermoplastic pavement marking material wherein the melter kettle is provided with a combustion chamber the improvement comprising a molten thermoplastic circulation system coupled to the melter kettle , the molten thermoplastic circulation system comprising:a vertical material transfer tube in fluid communication with the bottom and top of the melter kettle and having an auger therein for transferring molten thermoplastic material between the bottom and top of the melter kettle; anda heat chamber surrounding at least a portion of the vertical material transfer tube through which a heated fluid flows.2. The melter kettle of claim 1 , wherein the heat chamber is in fluid communication with the combustion chamber whereby hot combustion gases generated in the combustion chamber flow through the heat chamber.3. The melter kettle of further comprises a source of heated oil that flows through the heat chamber.4. The melter kettle of claim 1 , wherein the heat chamber surrounds substantially the entire circumferential periphery of the vertical material transfer tube.5. The melter kettle of claim 1 , wherein the heat ...

Oxy-Fuel Combustion System and Method for Melting a Pelleted Charge Material

A system for melting a pelleted charge material including a furnace having a feed end configured to receive a solid pelleted charge material and a discharge end opposite the feed end configured to discharge a molten charge material and a slag, a conveyor configured to feed the pelleted charge material into the feed end of the furnace, at least one oxy-fuel burner positioned to direct heat into a melting zone near the feed end to heat and at least partially melt the pelleted charge material to form the molten charge material and slag, wherein the oxy-fuel burner uses an oxidant having at least 70% molecular oxygen, and at least one flue for exhausting burner combustion products from the furnace. 1. A system for melting a pelleted charge material comprising:a furnace having a feed end configured to receive a solid pelleted charge material and a discharge end opposite the feed end configured to discharge a molten charge material and a slag;a conveyor configured to feed the pelleted charge material into the feed end of the furnace;at least one oxy-fuel burner positioned to direct heat into a melting zone near the feed end to heat and at least partially melt the pelleted charge material to form the molten charge material and slag, wherein the oxy-fuel burner uses an oxidant having at least 70% molecular oxygen; andat least one flue for exhausting burner combustion products from the furnace.2. The system of claim 1 , wherein the furnace has a length and a width claim 1 , wherein the charge material moves horizontally in a lengthwise direction from the feed end to the discharge end claim 1 , and wherein the at least one burner is positioned near the feed end claim 1 , the length being at least twice the width.3. The system of claim 2 , wherein at least a portion of the bottom is sloped downward from the feed end toward the discharge end to enable gravity to assist in moving charge material from the feed end to the discharge end.4. The system of claim 1 , wherein the ...

TRANSLATABLY MOBILE BATCH CHARGER

A batch charger includes a barrel defining a direction X of charging a glass forming batch into the furnace, and a mechanical assembly provided with a member for conveying the batch to the furnace in the charging direction X, this conveying member being at least partially arranged in the barrel, and a motorized unit for driving the conveying member. The batch charger includes a mechanical assembly translatably mobile relative to the barrel, in the charging direction X.

APPARATUS FOR LOADING/UNLOADING WORKPIECES INTO/FROM FURNACE

An apparatus for loading/unloading workpieces, including a furnace heating a workpiece, and a robot loading and/or unloading a workpiece into/from the furnace. The robot may include a manipulator linkage and a fork at an end of the manipulator linkage. The fork may have an upper side on which a workpiece is placed while being loaded into and/or unloaded from the furnace. The fork may include a parallel arrangement of fork elements, each fork element in the fork having a length and rectangular cross section perpendicular to the length. Each fork element may have a workpiece carrying surface on which a workpiece is placed and an opposite surface to the workpiece carrying surface. The fork element may include a heat insulator disposed on the workpiece carrying surface at least over an area where a workpiece is placed to equalize longitudinal thermal expansions in the workpiece carrying surface and the opposite surface. 16-. (canceled)7. An apparatus for loading/unloading workpieces , comprising:a furnace heating a workpiece; anda robot loading and/or unloading a workpiece into/from the furnace,the robot comprising a manipulator linkage and a fork at an end of the manipulator linkage,the fork having an upper side on which a workpiece is placed while being loaded into and/or unloaded from the furnace, and the fork comprising a parallel arrangement of fork elements, each fork element in the fork having a length and a rectangular cross section perpendicular to the length, andeach fork element having a workpiece carrying surface on which a workpiece is placed and an opposite surface to the workpiece carrying surface, and the fork element including a heat insulator disposed on the workpiece carrying surface at least over an area where a workpiece is placed to equalize longitudinal thermal expansions in the workpiece carrying surface and in the opposite surface.8. The apparatus of claim 7 , the heat insulator on the workpiece carrying surface comprising a ceramic heat ...

APPARATUS AND METHOD FOR FEEDING MATERIAL

A material feeding apparatus is disclosed. An apparatus for removing a surface oxide of a metal material and feeding the metal material to a melting furnace, according to an embodiment of the present disclosure, includes: a housing including a material dropping chamber for feeding and discharging the metal material and a material etching chamber for performing a plasma etching process; and a pretreatment casing configured to reciprocate between the material dropping chamber and the material etching chamber in the housing, wherein the pretreatment casing receives the metal material from the material dropping chamber to store the metal material, moves to the material etching chamber to plasma-etch a surface oxide layer of the stored metal material, and then returns to the material dropping chamber to drop the etched metal material into the melting furnace. 1. An apparatus for removing a surface oxide of a metal material and feeding the metal material to a melting furnace , comprising:a housing including a material dropping chamber for feeding and discharging the metal material and a material etching chamber for performing a plasma etching process; anda pretreatment casing configured to reciprocate between the material dropping chamber and the material etching chamber in the housing,wherein the pretreatment casing receives the metal material from the material dropping chamber to store the metal material, moves to the material etching chamber to plasma-etch a surface oxide layer of the stored metal material, and then returns to the material dropping chamber to drop the etched metal material into the melting furnace.2. The apparatus according to claim 1 ,wherein the pretreatment casing is rotatably installed, and when the pretreatment casing is located in the material etching chamber to perform the plasma-etch process, the pretreatment casing rotates to stir the metal material.3. The apparatus according to claim 1 ,wherein a plurality of holes are formed in an outer ...

MELTING MATERIAL SUPPLY APPARATUS

The purpose of the present invention is to provide a melting material supply apparatus which is capable of contributing to improvements in the working environment and the melting efficiency of a metal melting furnace, and which is also capable of making melting work more efficient. This melting material supply apparatus for supplying a melting material to a crucible is provided with: a melting material supply unit for supplying the melting material to the crucible; and a furnace lid for closing an opening provided in the upper part of the crucible. The furnace lid is supported in a horizontal state by a furnace lid-supporter, and is capable of being moved between a position in which the opening is closed, and a standby position located above a hood. When the furnace lid is in the standby position, the opening is open, and the melting material can be supplied into the crucible therefrom. 1. (canceled)2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. A melting material supply apparatus combined with a metal melting furnace for melting a melting material supplied to a crucible and configured to supply the melting material to the crucible , whereina melting material supply unit configured to supply a melting material to the crucible;a means configured to move the melting material supply unit between a position for supplying the melting material to the crucible and a position retracted therefrom and apart from the crucible which has been supplied with the melting material at the position for supplying;a furnace lid provided integrally with the melting material supply unit and configured to cover an opening provided at a top of the crucible;a furnace lid-supporting means configured to support the furnace lid in a horizontal state; anda furnace lid-moving means configured to move the furnace lid supported by the furnace lid-supporting means between a first position at which the furnace lid is placed at the opening to cover the opening and a second position at which ...

INDUCTION HEATING LINE BILLET PUSHOUT SYSTEM AND METHOD WITH JOINTED PUSH ROD ASSEMBLY

A billet pushout system is provided for an electric induction billet heating line with long length revolute jointed pushout rods forming a non-jamming pushout rod assembly that is stored in a linear enclosure connected to an arcuate enclosure that deploys and retracts the pushout rod assembly to and from the electric induction billet heating line. 1. An electric induction heating line billet pushout rod comprising:a central longitudinally-oriented pushout rod section having a longitudinally-oriented central cross sectional axis;a female pushout rod end section formed at a first opposing longitudinally-oriented cross sectional end of the central longitudinally-oriented pushout rod section, the female pushout rod end section comprising a centrally located yoke extending axially from the first opposing longitudinally-oriented cross sectional end, the centrally located yoke having a first side wall and a second side wall extending axially from the first opposing longitudinally-oriented cross sectional end and an interior wall formed from the first opposing longitudinally-oriented cross sectional end of the central longitudinally-oriented pushout rod section between the first side wall and the second side wall; the first side wall and the second side wall having a first transverse pivot hole and a second transverse pivot hole disposed vertically off-center from the longitudinally-oriented cross sectional axis; the first transverse pivot hole and the second transverse pivot hole transversely aligned to each other; anda male pushout rod end section formed at a second opposing longitudinally-oriented end of the central longitudinally-oriented pushout rod section, the male pushout rod end section comprising a centrally disposed vertical tab extending axially from the second opposing longitudinally-oriented cross sectional end, the centrally disposed vertical tab having a third transverse pivot hole disposed vertically off-center from the longitudinally-oriented cross section ...

Apparatus for feeding raw material bars to a melting furnace

An apparatus feeds raw material bars to a furnace body of a melting furnace, and includes an enclosure body provided with a vertical feed passage to be disposed above an open top side of the furnace body. A feeding unit includes a push mechanism extending into an upper part of the feed passage, and a material retarder extending into a lower part of the feed passage. A transferring unit transfers a raw material bar to the feed passage in a manner that the raw material bar extends vertically in the feed passage. The push mechanism pushes the raw material bar in the feed passage downwardly, and the material retarder retards downward movement of the raw material bar out of the feed passage and into the furnace body.

Electric furnace for the production of metal oxides

Roller changing device for ovens

Rollenwechselvorrichtung (1) zum Wechseln einer Rolle (6) von einer Vielzahl von Rollen (6) eines Ofens (10) zum Wärmebehandeln von Bauteilen (50), wobei die Rollenwechselvorrichtung (1) ein abschließbares Gehäuse (2), in dem eine erste Schutzgasatmosphäre ausbildbar ist, und eine Rollenhandhabungseinrichtung (4) aufweist, die zumindest teilweise in dem Gehäuse (2) angeordnet ist, und die zum Demontieren der auszuwechselnden Rolle (6) von dem Ofen (10) und zum Montieren einer Ersatzrolle (6) an dem Ofen (10) unter Aufrechterhaltung einer Hochtemperatur und einer zweiten Schutzgasatmosphäre in dem Ofen (10) während des Rollenwechsels eingerichtet ist. Roller changing device (1) for changing a roller (6) of a plurality of rollers (6) of a furnace (10) for heat treating components (50), wherein the roller changing device (1) a lockable housing (2) in which a first inert gas atmosphere is formed, and a roller handling device (4) which is at least partially disposed in the housing (2), and for dismantling the role to be replaced (6) of the oven (10) and for mounting a spare roller (6) on the furnace (10) while maintaining a high temperature and a second inert gas atmosphere in the furnace (10) is set during the roll change.

Device for heat treatment of a product comprising at least one heating element and corresponding method

The invention relates to a device for heat treatment of a product, including: an enclosure comprising a casing made of refractory material; a screw mounted to turn in the casing about a geometric axis of rotation in order to move the product between an inlet of the casing and an outlet of the casing, the screw furthermore forming a heating means for heat treatment of the product by supplying electricity to the screw. According to the invention, the device comprises at least one heating element for heating the casing in operation, the heating element being arranged inside at least one of the walls of the casing. The invention also relates to a corresponding method.

Procedure and equipment for processing lime slurry

FIELD: oil and gas production. SUBSTANCE: procedure for supply of lime slurry into limestone baking oven including case of rotating oven having internal space between first and second end wall consists in supply of lime slurry by means of supplying device into flow of kiln gas. The supplying device is positioned to facilitate introduction of lime slurry into a lifting pipe in the point located inside the case of the rotating oven or in direct vicinity to the case for preliminary treatment of lime slurry. The procedure also consists in separation of preliminary treated lime slurry from flow of kiln gas. Further, the procedure consists in supply of separated lime slurry into the limestone baking oven and in calcination of separated lime slurry in it. EFFECT: raised wear resistance, elimination of lime slurry sticking to hot surfaces, reduced dimensions of oven at maintaining efficiency and improved repair ability. 17 cl, 3 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 430 899 (13) C2 (51) МПК C04B 2/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2008125084/03, 21.11.2006 (24) Дата начала отсчета срока действия патента: 21.11.2006 (73) Патентообладатель(и): АНДРИТЦ ОЙ (FI) R U Приоритет(ы): (30) Конвенционный приоритет: 21.11.2005 US 11/282,690 (72) Автор(ы): ЛЕЙЧЛИТЕР Джон Махлон III (US) (43) Дата публикации заявки: 27.12.2009 Бюл. № 36 2 4 3 0 8 9 9 (45) Опубликовано: 10.10.2011 Бюл. № 28 (56) Список документов, цитированных в отчете о поиске: US 5711802 A, 27.01.1998. RU 2114945 C1, 10.07.1998. SU 1678791 A1, 23.09.1991. SU 1323541 A1, 15.07.1987. SU 350762 A, 25.09.1972. US 4391671 A, 05.07.1983. 2 4 3 0 8 9 9 R U (86) Заявка PCT: FI 2006/000383 (21.11.2006) C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 23.06.2008 (87) Публикация заявки РСТ: WO 2007/057512 (24.05.2007) Адрес для переписки: 129090, Москва, ул. Б.Спасская, 25, стр.3, ООО " ...

用于处理石灰渣的方法和设备

一种用于将石灰渣供给到石灰窑中的方法，该石灰窑包括旋转窑壳，所述旋转窖壳具有位于第一端壁和第二端壁之间的内部，该方法包括：将石灰渣供给到位于旋转窑壳内部或者紧邻窑壳的烟道气流中以对石灰渣进行预处理；从烟道气流分离出经过预处理的石灰渣；将分离出的石灰渣输送到石灰窑中，并且在石灰窑中煅烧分离出的石灰渣。

Arrangement for feeding fine-grained matter to a concentrate or matte burner of a suspension smelting furnace

본원은 서스펜션 용련로 (2) 의 정광 또는 매트 버너 (1) 에 미립 물질을 장입하기 위한 장치에 관한 것이다. 상기 장치는 스크류 컨베이어 (3) 를 포함하고, 이 스크류 컨베이어는 유입구 (6) 를 가진 튜브 수단 (4), 하향 유출구 (7), 및 상기 유입구 (6) 에서부터 상기 하향 유출구 (7) 로 미립 물질을 이동시키기 위한 나선형 스크류 (8) 를 포함한다. 하향 유출구 (7) 에는 분배 수단 (10) 이 제공된다. 분배 수단 (10) 은 하향 유출구 (7) 에 미립 물질을 장입하도록 구성된 자유 단부 (11) 를 가진다. 스크류 컨베이어 (3) 의 나선형 스크류 (8) 는 유입구 (6) 의 방향에서부터 적어도 부분적으로 하향 유출구 (7) 에 걸쳐 연장된다. The present application relates to an apparatus for charging particulate matter in the concentrate or mat burner 1 of a suspension smelting furnace 2. The apparatus comprises a screw conveyor 3, which comprises a tube means 4 with an inlet 6, a downward outlet 7, and a particulate material from the inlet 6 to the downward outlet 7. A helical screw 8 for moving it. The downward outlet 7 is provided with a distribution means 10. The dispensing means 10 have a free end 11 configured to charge particulate matter into the downward outlet 7. The helical screw 8 of the screw conveyor 3 extends at least partially over the downward outlet 7 from the direction of the inlet 6.

Production of log-length metal rolled stock and continuous moulding plant to this effect

FIELD: process engineering. SUBSTANCE: invention relates to metallurgy and may be used for strip hot rolling at combination mill. Double-pass continuous casting machine teems the product of square, rectangular or equivalent cross-section with long-to-short length ratio of 1.02-4. Casting is cut to bloom lengths of 16-150 m, 10-100 t in weight to be fed to furnace for curing or heating. Axes of the furnace displacement first and second sections (20a, 20b) are aligned with axes of teeming lines (21a, 21b). Bloom lengths inside the furnace are transferred cross wisely to third transfer section (24) located parallel with said first and second sections (20a, 20b) and displaced relative thereto. Axis of third section (24) is aligned with rolling line axis (22) located parallel with two teeming lines (21a, 21b) and shifted relative thereto. Bloom length cross-section is reduced at rolling mill. EFFECT: teeming of metal without interruption of rolling. 10 cl, 15 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК B21B 1/46 (13) 2 553 162 C2 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2010135758/02, 18.08.2010 (24) Дата начала отсчета срока действия патента: 18.08.2010 (72) Автор(ы): БЕНЕДЕТТИ Джанпьетро (IT) (73) Патентообладатель(и): ДАНИЕЛИ & К. ОФФИЧИНЕ МЕККАНИКЕ СПА (IT) Приоритет(ы): (30) Конвенционный приоритет: (43) Дата публикации заявки: 27.02.2012 Бюл. № 6 R U 21.07.2010 IT UD2010A000148 (45) Опубликовано: 10.06.2015 Бюл. № 16 0298001 A1, 03.12.2009. RU 2013143 С1, 30.05.1994. RU 2114707 С1, 10.071998 2 5 5 3 1 6 2 R U (54) СПОСОБ ПРОИЗВОДСТВА ДЛИННОМЕРНОГО МЕТАЛЛИЧЕСКОГО ПРОКАТА И ЛИТЕЙНОПРОКАТНЫЙ АГРЕГАТ НЕПРЕРЫВНОГО ДЕЙСТВИЯ ДЛЯ ПРОИЗВОДСТВА ТАКОГО ПРОКАТА (57) Реферат: Изобретение относится к области металлургии Внутри печи отрезки блюма передают поперечно и может быть использовано при прокатке на в третью секцию (24) перемещения, которая совмещенной литейно-прокатной установке. На расположена ...

Cement Clinker Manufacturing Equipment

스스펜션 예열기(또는 설치된 예비 하소로) 등의 예열장치에서 예열되고 부분적으로 예비 하소된 시멘트 원료 분말을 제립로에 공급하여 제립한 다음, 소결로에 공급하여 소결한 후 소결된 원료를 냉각장치에서 냉각하고 회수하는 시멘트 클링커 제조장치를 제공한다. 이 장치는 제립로가 있어서 제립로와 제립성능이 향상된다. 국부적인 고온대를 형성하는 연료 공급 장치를 제립로의 소결로 사이의 드로우트(throat)부에 설치된 다공성의 천공된 분배기 바로 위에 설치하여 제립로가 제트 유동층 구조를 형성하도록 하고, 제립로의 하부에는 원추의 역절단체(원추부)를 구성하여 제립된 원료가 하방향 이동층을 형성하도록 하며, 시멘트 원료 분말을 원추부의 측벽을 통해 취입하여 이동층에서 충분히 분산시킨 후 국부적인 고온대에 도달하도록 되어 있다.

Spiral feeding device

本发明公开了一种螺旋进料装置，包括螺旋输送机，所述螺旋输送机包括螺旋筒、进料口、出料口、与所述螺旋筒同轴设置的螺旋轴和绕所述螺旋轴布置的螺旋叶片，其特征在于：所述螺旋进料装置包括至少两级螺旋输送机，且各级螺旋输送机依次连接；各级螺旋输送机沿进料口至出料的方向上依次包括输送段、挤压段和密封段，密封段包括螺旋轴上有螺旋叶片区段和螺旋轴上无螺旋叶片区段，无螺旋叶片区段与挤压段连接，有螺旋叶片区段与无螺旋叶片区段连接。本发明的方案可实现连续进料，密封进料，阻止气体反蹿以及控制进入反应器中的氧含量。

Charging apparatus for raw material and the method thereof

The present invention relates to a device and a method for supplying raw materials. The device comprises a raw material supply unit supplying the raw materials and a supply chute transferring the raw materials supplied from the raw material supply unit to a storage unit. A raw material transfer path of the supply chute is formed in a prolate cycloid curved shape. The present invention is capable of improving the quality and productivity of sintered ore by improving the permeability of the raw materials.

Apparatus for charging material in heating furnace

본 발명은 가열로의 내부에서 소재의 이송방향을 따라 각각 위치되고, 상호 간에 평행하게 이격된 스키드 빔부들; 상기 소재를 상기 가열로의 입측으로 유도하는 장입 테이블부; 및 상기 가열로의 입측을 통해 상기 장입 테이블부 상의 소재를 상기 가열로의 내부로 장입하는 푸셔부를 포함하되, 상기 소재가 상기 가열로의 내부에 장입되어, 상기 스키드 빔부들에 의해 지지될 때, 상기 스키드 빔부들의 일부가 상승하여, 상기 소재를 지지하고 상기 가열로의 출측으로 이송하고, 상기 스키드 빔부들의 일부가 하강하여 상기 소재로부터 이격될 때, 상기 푸셔부는 상기 장입 테이블부 상의 소재를 상기 가열로의 내부에 장입시키는 것을 특징으로 하는 가열로의 소재 장입 장치 및 방법을 개시한다. 상기와 같은 가열로의 소재 장입 장치 및 방법은 소재의 장입 시간을 단축할 수 있다. The present invention relates to a sintering machine comprising skid beam parts positioned inside a heating furnace along a conveying direction of a workpiece and spaced apart from each other in parallel; A charging table portion for guiding the material to the entrance side of the heating furnace; And a pusher portion for loading the material on the charging table portion into the heating furnace through an inlet of the heating furnace. When the material is charged into the heating furnace and supported by the skid beam portions, Wherein the pusher portion is configured to move the material on the charging table portion when the portion of the skid beam portions is lowered and spaced apart from the workpiece, And charging the material into the heating furnace. The apparatus and method for charging a material in the heating furnace as described above can shorten the charging time of the material.

Cart exchanging and tilting device of torpedo ladle car

본 고안은 선로상에서 용선을 운반하는 혼선차의 개선에 관한 것으로, 혼선차벳셀이 비상 수리공장으로 이송가능하게 배설된 주선로와; 상기 주선로의 일부가 절단되고 경동설비를 지지하는 대차와 대응되면서 비상경동조치 가능한 보조경동모터, 보조경동기어를 갖는 보조대차와; 상기 보조대차가 안착되며 상기 주선로와 연결가능한 보조대차를 갖고 주선로의 길이방향과 직교되게 이동가능하게 마련되는 베이스와; 상기 한쌍의 대차를 들어올릴 수 있도록 마련된 한쌍의 승하강실린더와; 상기 승하강실린더들 사이에 마련되고 상기 혼선차벳셀의 외주면 하단을 안착지지토록 마련된 지지블럭을 포함하여 구성된다. The present invention relates to an improvement of a crossroad vehicle for transporting a molten iron on a track, and a main line in which a crossroad car vessel is disposed to be transported to an emergency repair factory; A subsidiary bogie having a subsidiary motor and a subsidiary tilting gear capable of emergency warning operation while a part of the main line is cut and corresponding to a trolley supporting the tilting facility; A base on which the sub bogie is seated and provided with a sub bogie connectable to the main track so as to be movable perpendicularly to the longitudinal direction of the main track; A pair of lifting cylinders provided to lift the pair of trucks; It is provided between the lifting cylinders and comprises a support block provided to support the lower end of the outer circumferential surface of the cross talk car vessel. 본 고안에 따르면 혼선차의 경동불량시 이에 신속히 대처하여 비상경동가능하게 함으로써 안전사고의 예방은 물론 혼선차의 손괴를 막을 수 있다. According to the present invention, it is possible to prevent emergency accidents as well as to prevent damage to the crossroad vehicle by quickly coping with it when the crossroad vehicle is misaligned.

Combustor for solid particulate fuels

The combustor for solid particulate fuels is particularly well suited for burning shelled corn, but is also capable of burning other solid particulate fuels as desired, with no modification required for their use. The combustor includes a rotary agitator extending across the combustor chamber or “burning pot,” with the agitator having a plurality of radial arms. Combustion air passes through the hollow agitator shaft outwardly through the hollow arms, the arms distributing combustion air into the fuel mass as the arms rotate therethrough to produce more efficient combustion of the fuel and thereby reduce coagulation of partially burned corn on the internal surfaces of the combustor. The opposed walls of the combustor include at least one pivotally mounted wall, with the angle of that wall being adjustable to adjust the ash dispersal gap between the pivoting wall and the opposite wall.

Hearth rolls with excellent hardening capacity

본 발명은 13 내지 31원자%의 (Al+Cr)량 및 10원자% 이하의 Al량으로 결합된 MCrAlY 합금(M : Fe, Ni, Co)과 MgAl 2 O 4 , MgO 및 Y 2 O 3 로 이루어지는 그룹에서 선택되는 최소한 하나의 산화 세라믹으로 이루어지는 서어멧 열 분무층인 롤 표면에 서어멧 가열 분무 코팅을 가지는 노상 롤에 관한 것이다.

METHOD AND EQUIPMENT FOR TREATMENT OF Lime Sludge

1. Способ подачи известкового шлама в печь для обжига известняка, включающий в себя корпус вращающейся печи, имеющий внутреннее пространство между первой и второй торцевой стенкой, способ включает в себя: ! подачу известкового шлама в поток топочного газа во внутреннее пространство корпуса вращающейся печи или в непосредственной близости к корпусу для предварительной обработки известкового шлама; ! отделение предварительно обработанного известкового шлама от потока топочного газа; ! подачу отделенного известкового шлама в печь для обжига известняка, и ! кальцинирование отделенного известкового шлама в печи для обжига известняка. ! 2. Способ по п.1, в котором поток известкового шлама регулируют так, чтобы, по меньшей мере, часть известкового шлама попала непосредственно во внутреннее пространство печи и не проходила предварительную обработку топочными газами. ! 3. Способ по п.1, в котором известковый шлам, не вовлеченный в поток топочного газа, попадает непосредственно во внутреннее пространство печи. ! 4. Способ по п.1, в котором известковый шлам, подлежащий предварительной обработке, представляет собой влажный известковый шлам из фильтра для известкового шлама. ! 5. Способ по п.1, в котором предварительная обработка включает в себя: ! первый этап, на котором влажный известковый шлам сгущают на фильтре для известкового шлама и высушивают посредством топочного газа из печи, и отделяют от топочного газа, и ! второй этап, на котором высушенный известковый шлам с первого этапа предварительно нагревают топочным газом из печи, отделяют от топочного газа, в соответствии с чем, на втором этапе высушенный известковый шлам вво РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2008 125 084 (13) A (51) МПК C04B 2/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21), (22) Заявка: 2008125084/03, 21.11.2006 (71) Заявитель(и): АНДРИТЦ ОЙ (FI) (30) Конвенционный приоритет: 21.11.2005 US 11/282,690 (43) Дата публикации заявки: ...

Gypsum drying and/or burning plant

FIELD: devices for gypsum dehydration and semihydrate gypsum production. SUBSTANCE: method involves supplying hot gases to inlet of the first channel; delivering gypsum to inlet of the second channel, which is concentric to the first one; moving gypsum in the second channel by supply screw; providing indirect heat-exchange between gypsum and hot gases; burning gypsum to obtain semihydrate gypsum. Gypsum movement and indirect heat-exchange stages include drying and partial burning gypsum to create semihydrate gypsum. Gypsum burning at the last stage is terminated in bringing gypsum into contact with hot gases. The last burning operation is of pulsed type. Gypsum movement and heat-exchanging stages continue for 30 sec-5 min. Gypsum burning by hot gases is carried out for 1-10 sec. Device for described method realization and ready product are also disclosed. EFFECT: increased productivity and product quality. 27 cl, 2 dwg, 1 tbl ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (11) 2 316 517 (13) C2 (51) ÌÏÊ C04B 11/028 (2006.01) F27B 17/00 (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÎÏÈÑÀÍÈÅ ÈÇÎÁÐÅÒÅÍÈß Ê ÏÀÒÅÍÒÓ (21), (22) Çà âêà: 2004129751/03, 04.03.2003 (72) Àâòîð(û): ÔÀËÈÍÎÂÅÐ Øàðëü (FR) (24) Äàòà íà÷àëà îòñ÷åòà ñðîêà äåéñòâè ïàòåíòà: 04.03.2003 (73) Ïàòåíòîîáëàäàòåëü(è): ËÀÔÀÐÆ ÏËÀÒÐ (FR) R U (30) Êîíâåíöèîííûé ïðèîðèòåò: 08.03.2002 (ïï.1-27) FR 02/02955 (43) Äàòà ïóáëèêàöèè çà âêè: 20.08.2005 (45) Îïóáëèêîâàíî: 10.02.2008 Áþë. ¹ 4 2 3 1 6 5 1 7 2 3 1 6 5 1 7 R U (85) Äàòà ïåðåâîäà çà âêè PCT íà íàöèîíàëüíóþ ôàçó: 08.10.2004 C 2 C 2 (56) Ñïèñîê äîêóìåíòîâ, öèòèðîâàííûõ â îò÷åòå î ïîèñêå: ÅÐ 0230793 À2, 05.08.1987. SU 91532 A1, 01.01.1951. SU 1621809 A3, 15.01.1991. FR 2493826 A, 14.05.1982. US 4101630 A, 18.07.1978. US 3329417 A, 04.07.1967. ÅÐ 0083549 A, 13.07.1983. ÁÓÄÍÈÊΠÏ.Ï. Ãèïñ, åãî èññëåäîâàíèå è ïðèìåíåíèå. - Ì.: Ñòðîéèçäàò, 1943, ñ.36-38. ÁÓÒÒ Þ.Ì. è äð. Òåõíîëîãè â æóùèõ âåùåñòâ. - Ì.: Âûñøà øêîëà, 1965, ñ.25, 26, 31, ...

METHOD FOR PRODUCING LONG-LENGTH METAL RENT AND CASTING UNIT FOR CONTINUOUS PROCESS FOR PRODUCING SUCH RENT

1. Способ производства изделий длинномерного металлического проката, отличающийся тем, что содержит этапы: ! - непрерывного литья, осуществляемого посредством машины (11) непрерывной разливки металла в две линии (21а, 21b) разливки, при этом в каждой из двух линий (21а, 21b) разливки производится продукт квадратного, прямоугольного или эквивалентного сечения с отношением длинной стороны к короткой в диапазоне от 1 до 4; ! - порезки в размер продукта литья каждой из линий (21а, 21b) разливки для выделения отрезка блюма длиной от 16 м до 150 м, вес которого составляет от 10 т до 100 т; ! - прямого ввода каждого отрезка блюма, имеющего среднюю температуру, по меньшей мере, 1000°С-1150°С, в печь (14) поддержания температуры и/или возможного нагрева, содержащую первую и вторую секции (20а, 20b) перемещения, ось каждой из которых совпадает соответственно с осью одной из линий (21а, 21b) разливки, с целью приема соответствующего отрезка; ! - поперечной передачи каждого отрезка блюма внутри печи (14), чтобы поместить отрезок в третью секцию (24) перемещения, которая расположена параллельно первой и второй секциям (20а, 20b) перемещения со смещением относительно последних и ось которой совпадает с осью линии (22) прокатки, которая в свою очередь расположена параллельно двум линиям (21а, 21b) разливки и смещена относительно них; ! - редуцирования сечения отрезка блюма в прокатном стане (16), который определяет указанную ось прокатки. ! 2. Способ по п.1, отличающийся тем, что оптимальную длину порезанного в размер отрезка блюма, с которой соотнесена длина печи (14) поддержания температуры и/или возможного нагрева, рассчитывают из условия минимума функции потерь - линейной комби РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2010 135 758 (13) A (51) МПК B21B 1/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2010135758/02, 18.08.2010 (71) Заявитель(и): ДАНИЕЛИ энд К. ОФФИЧИНЕ МЕККАНИКЕ СПА (IT) Приоритет(ы): (30) Конвенционный ...

Device and method for temperature maintenance and heating of long-sized metal articles

FIELD: process engineering. SUBSTANCE: invention relates to metallurgy and may be used for strip hot rolling at combination mill. Device comprises two furnaces (36, 37) and transfer tunnel (38) and is located between CC machine and rolling line (22). Toppings of bloom are fed from first rolling line (21a) to transfer tunnel (38) located nearby second furnace (37) parallel with its lengthwise axis and, therefrom, to first furnace (36) to first take-up roll table (41). Roll table (41) axis is aligned with that of casting first line (21a) and that of transfer tunnel (38). Bloom toppings are fed from casting second line (21b) to second furnace (37) on second take-up roll table (42) with axis aligned with the axis of said second casting line. Bloom toppings are transferred in turns from take-up roll table (41) to discharge roll table (43) and therefrom toward tolling line (22). Bloom toppings are transferred in turns from take-up roll table (42) to output roll table (44) and therefrom toward tolling line (22). EFFECT: outage of rolling mill with interruption of metal teeming. 9 cl, 7 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 561 951 C2 (51) МПК B22D 11/00 (2006.01) B21B 1/46 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2010135760/02, 18.08.2010 (24) Дата начала отсчета срока действия патента: 18.08.2010 (72) Автор(ы): БЕНЕДЕТТИ,Джанпьетро (IT) (73) Патентообладатель(и): ДАНИЕЛИ энд К. ОФФИЧИНЕ МЕККАНИКЕ СПА (IT) Приоритет(ы): (30) Конвенционный приоритет: (43) Дата публикации заявки: 27.02.2012 Бюл. № 6 R U 21.07.2010 IT UD2010A000149 (45) Опубликовано: 10.09.2015 Бюл. № 25 2 5 6 1 9 5 1 R U (54) УСТРОЙСТВО И СПОСОБ ДЛЯ ПОДДЕРЖАНИЯ ТЕМПЕРАТУРЫ И ВОЗМОЖНОГО НАГРЕВА ДЛИННОМЕРНЫХ МЕТАЛЛИЧЕСКИХ ИЗДЕЛИЙ (57) Реферат: Изобретение относится к области металлургии разливки подают во вторую печь (37) на второй и может быть использовано при прокатке на приемный рольганг (42), ось которого совпадает ...

Method and device for producing metals and/or metal initial products

본 발명은 금속 및/또는 금속 일차 제품, 특히 선철 및/또는 일차 선철 제품을 제조하기 위한 방법으로서, 후속 프로세싱을 위해, 미립자형의 금속-함유 장입 물질이, 공압식 운반을 이용하여 그리고 가스의 운반 유동에 의해, 공급 물질 및 가스의 운반 유동으로 이루어진 매체 유동 형태로 용융 유닛, 특히 용융 가스화장치내로 도입된다. 본 발명에 따라, 공급 물질의 도입은 가스의 운반 유동을 제거한 후에 그리고 둘 이상의 도입 지점에서 독립적으로 이루어지며, 그에 따라 공급 물질의 둘 이상의 부분적인 양이 서로 독립적으로 그리고 연속적으로 또는 적층 방식으로 도입될 수 있다. The present invention is a method for producing metal and / or metal primary products, in particular pig iron and / or primary pig iron products, wherein for subsequent processing, particulate metal-containing charging materials are used, by means of pneumatic conveying and conveying of gas. By flow, it is introduced into the melting unit, in particular the melt gasifier, in the form of a medium flow consisting of a conveying flow of feed material and gas. According to the invention, the introduction of the feed material takes place independently after the transport flow of the gas has been removed and at two or more points of introduction, so that two or more partial amounts of feed material are introduced independently of one another and continuously or in a stacked manner. Can be.

Rotary thermal recycling system

A Rotary thermal processor for particulate materials has a rotating drum and a rotating hollow auger. A stationary cylindrical oven with stationary coils surrounds the rotating drum. Hot gas heats a first part of the oven, coil and drum. A rotating hollow auger is heated with hot fluid from the coils. Oven exhaust sweeps evaporated and volatized components of the treated materials to separators and a thermal oxidizer. Cleaned gas from the thermal oxidizer heats a second part of the oven coil and drum and exits a stack. The rotating drum and auger lifts and turns the treated material as it is advanced by the auger.

DEVICE FOR DRYING AND / OR COOKING GYPSUM

Process for the thermal treatment of cement raw meal in a reaction space

Beim erfindungsgemäßen Verfahren wird Zementrohmehl in einem Reaktionsraum thermisch behandelt, wobei der Reaktionsraum einen Boden mit einer Vielzahl von Druckluftdüsen zum Transport am Boden befindlichen Brenn- oder Restbrennstoffen aufweist, wobei die Druckluftdüsen in Transportrichtung sowohl nebeneinander als auch hintereinander angeordnet sind und in separat ansteuerbare Gruppen von ein oder mehreren Druckluftdüsen aufgeteilt sind, wobei die Druckluftdüsen einer Gruppe gleichzeitig aktiviert werden. Es sind folgende Verfahrensschritte vorgesehen: a. Aufgabe von Zementrohmehl, b. Aufgabe von Brennstoff, c. Zugabe von Verbrennungsluft, d. Abführen der entstehenden Abgase zusammen mit dem thermisch behandelten Zementrohmehl, e. Aktivierung der Druckluftdüsen zum Transport der am Boden befindlichen Brenn- oder Restbrennstoffe. Alle Gruppen der Druckluftdüsen werden zeitlich aufeinanderfolgend aktiviert, wobei die Reihenfolge so gewählt wird, dass der überwiegende Teil der zeitlich unmittelbar aufeinanderfolgenden Aktivierungen durch Gruppen erfolgt, die in oder quer zur Transportrichtung nicht direkt benachbart angeordnet sind. In the method according to the invention, cement raw meal is thermally treated in a reaction space, wherein the reaction space has a bottom with a plurality of compressed air nozzles for transporting on the ground fuel or residual fuel, the compressed air nozzles are arranged in the transport direction both side by side and behind each other and in separately controllable groups of one or more compressed air nozzles are divided, wherein the compressed air nozzles of a group are activated simultaneously. The following method steps are provided: a. Abandonment of cement raw meal, b. Abandonment of fuel, c. Addition of combustion air, d. Removing the resulting exhaust gases together with the thermally treated cement raw meal, e. Activation of the compressed air nozzles for the transport of fuel or residual fuels located on the ground. All ...

Process and installation for cooling and fabrication of bulk material

Cooling hot bulk material (I), esp. cement clinker, comprises gasification of fuel with water vapour, the enthalpy (Q) required for the gasification reaction being supplied by the hot material (I). Also claimed is: (i) a process for the prodn. of fired material (I) in which (I) is first fired and then cooled; and (ii) an appts. for the prodn. of fired (I).

Constant feed weigher for raw material and constant feeding method for the same

A belt conveyor for conveying a raw material discharged from a hopper in which raw materials are stored so as to prevent overfilling of raw materials in the process of supplying raw materials for sintering and accurately detect and cope with an abnormal belt speed change of the belt conveyor, And a control means for controlling the belt rotation speed of the belt conveyor in accordance with the detected value of the load cell, wherein the control means is connected to a speed sensor for detecting the rotation speed of the driving motor of the belt conveyor A data storage unit for sequentially storing output values of the speed sensors, an operation unit for calculating a deviation between an output value of a past time zone set in the data storage unit and an output value of a current drive motor input from the speed sensor, By comparing this deviation value with a predetermined reference value, Or more reference, provides a quantitative raw material supply device that includes a comparison operation for determining the belt conveyor and above.

Device and method for maintaining temperature and/or possible heating of long metallic items

FIELD: metallurgy. SUBSTANCE: invention relates to metallurgy, namely to a device for maintaining temperature and/or possible heating of long items to obtain long rolled-metal items. The device includes a movable conveying section for bloom pieces, which is located after a cutting device and contains the first moving line and the second moving line. The first and the second moving lines are made so that they can be moved in a direction transverse to a flow direction of bloom pieces, for movement to the first position, in which the above first moving line and/or the second moving line turns out to be displaced with the first pouring line and with the second pouring line respectively, as well as to the second position, in which any one moving line, either the first line or the second line, turns out to be aligned with the feed axis. After the movable conveying section, a furnace is located, which contains a receiving roller table for bloom pieces; with that, the axis of the receiving roller table coincides with the feed axis, an outgoing roller table, the axis of which coincides with axis of rolling line (30), and transverse movement devices having a possibility of conveying bloom pieces from the receiving roller table towards the outgoing roller table. EFFECT: use of the invention provides a possibility of variation of produced items as to dimensions and type without any interruption of continuous metal pouring. 12 cl, 11 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 537 674 C2 (51) МПК B21B 1/46 (2006.01) B22D 11/12 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2010135761/02, 18.08.2010 (24) Дата начала отсчета срока действия патента: 18.08.2010 (72) Автор(ы): БЕНЕДЕТТИ,Джанпьетро (IT) (73) Патентообладатель(и): ДАНИЕЛИ & К. ОФФИЧИНЕ МЕККАНИКЕ СПА (IT) Приоритет(ы): (30) Конвенционный приоритет: (43) Дата публикации заявки: 27.02.2012 Бюл. № 6 R U 21.07.2010 IT UD2010A000150 (45) Опубликовано: 10. ...

Method and apparatus for producing cement clinker

본 발명은 시멘트 클링커를 제일 먼저 연소대역에서 연소시킨다음 냉각대역(여기에서 냉각은 연료 및 증기의 전달에 의해 적어도 부분적으로 발생한다)에서 냉각시키는 시멘트 클링커의 제조방법으로, The present invention relates to a process for producing a cement clinker which first burns a cement clinker in a combustion zone and then cools in a cooling zone (where cooling takes place at least partly by the delivery of fuel and steam). 제 1 냉각단계에서, 전달된 연료를 시멘트 클링커와 혼합하고, 초기에 열분해시키며, 생성된 열분해 생성물이 증기와 강한 흡열반응을 일으킴으로써, 시멘트 클링커를 상기중에 함유된 액상의 95% 이상, 바람직하게 모두를 유리로 전환시키는 방식으로 급냉시키는 방법 및 장치에 관한 것이다. In the first cooling step, the delivered fuel is mixed with the cement clinker, initially pyrolyzed, and the resulting pyrolysis product undergoes a strong endothermic reaction with the steam, whereby the cement clinker is at least 95% of the liquid phase contained therein, preferably A method and apparatus for quenching in a way that converts all to glass.

Input device for a waste plastic pyrolysis system

본 발명은 폐플라스틱 열분해 시스템에 관한 것으로, 보다 상세하게는 열분해장치를 위한 투입장치에 관한 것이다. 이를 위해, 열분해장치의 투입장치에 있어서, 투입물이 투입되는 호퍼(110); 호퍼(110)와 연결되는 투입구(170); 투입구(170) 상에 설치되고, 이송중인 투입물을 분리하는 분리장치(200); 투입구(170)와 연통하는 수평관(160); 수평관(160)내에서 회전가능하게 설치되고 스크류(130)가 형성된 이송축(120)과 모터(90);를 포함하는 것을 특징으로 하는 보조열원을 갖는 열분해장치를 위한 투입장치가 제공된다.