Systems and Methods for Forming and Processing Alloy Ingots

Processes and methods related to producing, processing, and hot working alloy ingots are disclosed. An alloy ingot is formed including an inner ingot core and an outer layer metallurgically bonded to the inner ingot core. The processes and methods are characterized by a reduction in the incidence of surface cracking of the alloy ingot during hot working.

CRUCIBLE, EVAPORATION SOURCE AND EVAPORATION DEVICE

A crucible, an evaporation source and an evaporation device are disclosed. The crucible includes a crucible body. The crucible body includes: an inner heating layer with a first heater assembly and an outer heating layer with a second heater assembly. The outer heating layer is at a periphery of the inner heating layer, and surrounds the inner heating layer, and a space between the outer heating layer and the inner heating layer defines an accommodation space for a to-be-evaporated material. 1. A crucible , comprising: an inner heating layer with a first heater assembly; and', 'an outer heating layer with a second heater assembly;, 'a crucible body, wherein the crucible body includeswherein the outer heating layer is at a periphery of the inner heating layer and surrounds the inner heating layer, and a space between the outer heating layer and the inner heating layer defines an accommodation space for a to-be-evaporated material.2. The crucible of claim 1 , wherein:the crucible body includes an opening in a first end surface of the crucible body for evaporated material of the to-be-evaporated material to escape from the crucible body;the inner heating layer extends from a second end surface opposite to the first end surface towards the first end surface; andan end of the inner heating layer away from the second end surface is spaced from the first end surface.3. The crucible of claim 2 , wherein:the crucible body further includes a housing having an inner chamber;the outer heating layer is connected with the housing; andthe inner heating layer is at a central position of the inner chamber.4. The crucible of claim 3 , wherein the outer heating layer is in the inner chamber claim 3 , mounted to an inner wall of the housing claim 3 , and surrounds the inner heating layer.5. The crucible of claim 2 , wherein the second heater assembly of the outer heating layer includes a first heater and a second heater spaced from the first heater claim 2 , the first heater and the ...

PROCESS FOR THE PREPARATION OF HIGH ALUMINA CEMENT

High alumina cement is produced in a submerged combustion melter, cooled and ground. 1. Process for the preparation of high alumina cement comprising:introducing a solid batch material for preparation of high alumina cement into a melter;melting the solid batch material in the melter by submerged combustion to form a liquid melt;withdrawing at least a portion of the liquid melt from the melter;cooling said discharged liquid melt to obtain solidified melt; andgrinding the solidified melt to appropriate grain size.2. The process of claim 1 , wherein the melting chamber walls are cooled claim 1 , for example comprising double steel walls separated by circulating cooling liquid claim 1 , preferably water claim 1 , and are not covered by a refractory lining.3. The process of claim 1 , wherein heat is recovered from the hot fumes and/or from the cooling liquid.4. The process of wherein heat is recovered from the hot fumes to preheat the raw materials.5. The process of wherein part at least of the melt is withdrawn continuously or batchwise from the melter.6. The process of wherein the submerged burners of the melter are controlled such that the melt volume is increased by at least 8% claim 1 , preferably at least 10% claim 1 , more preferably at least 15% or 20% claim 1 , compared to the volume the melt would have with no burners firing.7. The process wherein the submerged combustion is performed such that a substantially toroidal melt flow pattern is generated in the melt claim 1 , having a substantially vertical central axis of revolution claim 1 , comprising major centrally inwardly convergent flows at the melt surface; the melt moves downwardly at proximity of the vertical central axis of revolution and is recirculated in an ascending movement back to the melt surface claim 1 , thus defining an substantially toroidal flow pattern.8. The process of wherein the melting step comprises melting the solid batch material claim 1 , in a submerged combustion melter by ...

Preparation of samples for XRF using flux and platinum crucible

A method of of preparing samples for XRF using a flux and a platinum crucible includes forming the flux into a free-standing crucible liner. This may be achieved by mixing lithium borate particles with a liquid to form a paste; placing the lithium borate paste onto the inner surface of a mould; and after drying removing from the mould and firing the lithium borate paste to dry the lithium borate to form a free-standing crucible liner. The liner may be placed within a platinum crucible and then a sample placed in the liner. The temperature of the crucible is raised to a sufficient temperature that any oxidation reaction takes place before taking the temperature above the melting temperature of the flux to melt the crucible liner and dissolve the sample into the flux. The crucible can then be cooled and XRF measurements made on the sample.

FURNACE COOLING PANEL MONITORING SYSTEM

A furnace cooling panel monitoring system utilizes individual cooling panel data to produce critical monitoring data. An exemplary cooling panel monitoring system utilizes the input from a plurality of temperature sensors configured to accurately measure the temperature change of cooling fluid flowing through each individual panel. The change in temperature from the inlet to the outlet of a cooling panel along with the flow rate of the cooling fluid through the panel can be used to calculate the a heat energy dissipation rate of the cooling panel, or heat flux. The flow rate through individual panels is determined by K-values or resistance to flow constants for a given cooling panel. The heat energy dissipation rate for individual panels can be provided to a user through a computer implemented monitoring program in real time. Alerts may be initiated by the computer implemented monitoring program when a threshold value has been exceeded. 1. A furnace cooling panel monitoring system comprising:a. a computer implemented monitoring program configured to display a heat energy dissipation rate for each of a plurality of cooling panels configured in a cooling panel array proximal to a furnace;wherein each of said plurality of cooling panels has an associated K-value that is input into the computer implemented monitoring program,wherein the K-value is a constant for each of said plurality of cooling panels and is a flow rate resistance value of a cooling liquid flowing through each of said plurality of cooling panels;wherein an array inlet cooling liquid flow rate is measured and input into the computer implemented monitoring program;wherein a cooling liquid inlet temperature and a cooling liquid outlet temperature to each of said plurality of cooling panels is measured and input into the computer implemented monitoring program;wherein the computer implemented monitoring program utilizes the input K-value for each of said plurality of cooling panels, the array inlet cooling ...

Cylindrical combustion tube and mounting assembly

A combustion tube mounting system releasably mounts a combustion tube to an aperture in the floor of a furnace housing. The combustion tube has a base assembly with a cam and can be manually or automatically unlocked by cam pins in the floor for selectively engaging the cam for lowering the combustion tube from the floor of the furnace. When a new combustion tube is placed on the lower seal assembly and raised, it automatically aligns and engages the upper furnace seal and engages cams on the floor of the furnace housing which lock the combustion tube in place as it is introduced into the furnace.

Channel electric inductor assembly

The present invention relates to an electric channel inductor assembly. A nonremovable, hollow and nonmagnetic channel mold is used to form the one or more flow channels of the electric channel inductor assembly for electromagnetic circulation of a molten metal composition. A heated fluid medium is circulated in the hollow interior of the channel mold after the mold is situated in the inductor assembly to heat treat the refractory surrounding the exterior walls of the mold. After heat treatment a liquid is supplied to the hollow interior of the mold to chemically dissolve the channel mold prior to circulation of the molten metal composition.

Two stage melting and casting system and method

A system for two stage casting of a metal alloy is disclosed that dispenses multiple feedstock metals into an arc melting crucible via a pressurized inert gas or metal vapor chamber to lower the volatilization rate of metals in an arc melting crucible at a rate proportional to the composition of the final desired alloy. The melt from the melting crucible enters a second stage cold wall crucible through a passage, where the melt cools and solidifies. A casting piston is used to slowly and progressively withdraw the solidified alloy from the cold wall crucible as it cools.

HEATING UNIT AND INGOT GROWING DEVICE INCLUDING SAME

The present invention relates to an ingot growing device for growing a single crystal silicon ingot. According to one embodiment of the present invention, the ingot growing device comprises: a growing chamber having an inner space; a growing container located in the inner space and having a silicon solution accommodated therein; a heating unit encompassing the growing container and located thereat, and generating heat; and a susceptor for supporting the growing container, wherein the heating unit comprises: a first ring heater having a ring shape; a second ring heater having a ring shape and located at the lower part of the first ring heater; a first coupling part for coupling the first ring heater and the second ring heater; and a first ring support unit located between the first ring heater and the second ring heater and supporting the first ring heater. 1. An ingot growing device for growing a single-crystalline silicon ingot , the device comprising:a growing chamber including an inner space;a growing container disposed in the inner space and configured to accommodate a silicon solution;a heating unit disposed to surround the growing container and configured to generate heat; anda susceptor configured to support the growing container,wherein the heating unit includes:a first ring heater having a ring shape;a second ring heater having a ring shape and disposed below the first ring heater;a first coupling part configured to couple the first ring heater with the second ring heater;a first ring support unit disposed between the first ring heater and the second ring heater and configured to support the first ring heater;a third ring heater having a ring shape and disposed below the second ring heater;a second coupling part configured to couple the second ring heater with the third ring heater; anda second ring support unit disposed between the second ring heater and the third ring heater, configured to support the second ring heater, and spaced apart from a lower ...

COMBUSTION TUBE AND SEAL ASSEMBLY

A combustion tube mounting system releasably mounts a combustion tube to an aperture in the floor of a furnace housing. The combustion tube has a base assembly with a cam and can be manually or automatically unlocked by cam pins in the floor for selectively engaging the cam for lowering the combustion tube from the floor of the furnace. When a new combustion tube is placed on the lower seal assembly and raised, it automatically aligns and engages the upper furnace seal and engages cams on the floor of the furnace housing which lock the combustion tube in place as it is introduced into the furnace. 1. A combustion tube assembly comprising:a generally cylindrical combustion tube; anda base assembly secured near one end of said combustion tube for releasably mounting said tube to an aperture in a floor of a combustion furnace.2. The combustion tube assembly as defined in wherein said base assembly comprises a collar including a cam claim 1 , an upper ring surrounding said combustion tube and threadably coupled to said upper collar and an annular seal positioned between said upper ring and collar.3. The combustion tube assembly as defined in wherein said cam of said collar has an annular outer surface and upper and lower chamfered surfaces spanning opposite sides of said annular surface.4. The combustion tube assembly as defined in wherein said collar has an internal annular recess opposite said upper ring and includes a lower annular seal positioned in said recess.5. The combustion tube assembly as defined in wherein said collar includes a cylindrical sleeve in which said lower annular seal is positioned claim 4 , said sleeve shaped to sealably extend over a furnace lower seal assembly.6. The combustion tube assembly as defined in wherein said base assembly includes a collar surrounding said combustion tube and a first annular seal positioned between said collar and said combustion tube.7. The combustion tube assembly as defined in wherein said collar has an internal ...

HEAT CONDUCTION DEVICE INCLUDED CRUCIBLE

The present invention provides a heat conduction device included crucible, which includes: a crucible body and a heat conduction device arranged in the crucible body. The heat conduction device has a tree-like configuration, which includes a heat-dissipative trunk and multiple levels of heat dissipative branches mounted to the heat-dissipative trunk. Each level of the heat dissipative branches includes a plurality of branch units and the branch units are arranged to project out from an outer surface of the heat-dissipative trunk. The heat conduction device included crucible of the present invention uses the tree-like heat conduction device arranged in the crucible body to transfer heat in every direction within the crucible body so that during a vapor deposition operation, an organic material received in the crucible body can be heated uniformly thereby avoiding the phenomenon of partial decomposition of the organic material occurring in the prior art technique due to non-uniform heating of the organic material and thus effectively improving the vapor deposition efficiency and vapor deposition performance. 1. A heat conduction device included crucible , comprising: a crucible body and a heat conduction device arranged in the crucible body , the heat conduction device having a tree-like configuration , which comprises a heat-dissipative trunk and multiple levels of heat dissipative branches mounted to the heat-dissipative trunk , each level of the heat dissipative branches comprising a plurality of branch units , the branch units being arranged to project out from an outer surface of the heat-dissipative trunk.2. The heat conduction device included crucible as claimed in claim 1 , wherein the heat-dissipative trunk comprises a cylindrical heat dissipative bar claim 1 , which is substantially parallel to a main axis of the crucible body.3. The heat conduction device included crucible as claimed in claim 2 , wherein the heat dissipative branches are normal to the heat- ...

Channel inductor

A channel inductor of a channel induction furnace, the channel inductor comprising (a) a channel liner and (b) a back-up liner that supports the channel liner such that the integrity of the channel liner is not compromised during heat-up, dry-out, or operation of the channel induction furnace.

METHOD FOR OPERATING AN ARC FURNACE AND SMELTING SYSTEM HAVING AN ARC FURNACE OPERATED ACCORDING TO THE METHOD

At least one measurement value of a measurement variable characterizing the operating state of each of a plurality of system components that influence the operating conditions of an arc furnace is detected and compared to a respective currently permissible threshold value for the measurement variable. A maximum power that can be supplied to the arc furnace within a time window while satisfying all currently permissible threshold values is determined based on the result of the comparison. 18-. (canceled)9. A method for operating an electric arc furnace , comprising:detecting at least one measured value of a measurement variable which characterizes an operating state, for each of a plurality of plant components which influence operating conditions of the electric arc furnace;comparing the at least one measured value with a currently permissible limiting value for each measurement variable to obtain comparison results;determining, by reference to the comparison results, a maximum power which can be fed to the electric arc furnace within a time window while adhering to each currently permissible limiting value; andoperating the electric arc furnace by supplying no more than the maximum power that was determined.10. The method as claimed in claim 9 , wherein said operating operates the electric arc furnace automatically with the maximum power that was determined.11. The method as claimed in claim 10 , wherein said determining includes at least one of determining the maximum power which can be fed in and a length of the time window based on a prediction of a course over time of at least one of the measurement variables.12. The method as claimed in claim 11 , wherein said detecting detects claim 11 , as the measurement variable claim 11 , at least one of an electric current flowing through claim 11 , an electric voltage across and a current temperature of one of the plant components.13. The method as claimed in claim 12 , further comprising controlling an auxiliary device ...

Refractory anchor device and system

Refractory anchoring devices include a main body and a mounting feature for mounting to a thermal vessel. The main body has the shape of two end-to-end Y's forming a central segment, two branch segments extending from each end of the central segment, and an extension segment extending from each of the four branch segments, to collectively form four unenclosed cell openings that are each semi-hexagonal in shape. Some embodiments include four reinforcement segments with each one extending into a respective cell opening, four voids with each one extending through respective adjacent branch and extension segments, an underbody gap formed under the central segment for refractory interlinking between cell openings, and/or a single stud-welding stud for the mounting feature. Refractory anchoring systems and methods include an array of the refractory anchoring devices arranged and mounted so that the unenclosed semi-hexagonal cell openings of adjacent anchoring devices cooperatively form substantially hexagonal cells.

Mobile Kiln System

An example mobile kiln system includes a mobile platform. A frame is mounted to the mobile platform. At least one kiln is rotatably mounted to the frame. The kiln is movable between a first operational position for loading a feed material into the at least one kiln, and a second operational position for unloading a biochar product from the at least one kiln following processing of the feed material. In an example, the mobile kiln system includes at least one stack assembly for the kiln. The stack assembly has a lid to cover the kiln to retain heat and a chimney to release emissions from the kiln during processing of the feed material. 1. A mobile kiln system , comprising:a mobile platform;a frame mounted to the mobile platform; andat least one kiln rotatably mounted to the frame, the at least one kiln movable between a first operational position for loading a feed material into the at least one kiln, and a second operational position for unloading a biochar product from the at least one kiln following processing of the feed material.2. The mobile kiln system of claim 1 , further comprising at least one stack assembly for the at least one kiln claim 1 , the at least one stack assembly having a lid to cover the kiln to retain heat and a chimney to release emissions from the kiln during processing of the feed material.3. The mobile kiln system of claim 2 , wherein the at least one stack assembly is positionable on the at least one kiln in an operating configuration and a transport configuration claim 2 , wherein the chimney moves about 180 degrees between the operating configuration and the transport configuration.4. The mobile kiln system of claim 1 , further comprising a dedicated stack assembly for each of a plurality of kilns mounted to the frame.5. The mobile kiln system of claim 1 , further comprising a single stack assembly provided on a guide track to move between a plurality of kilns mounted to the frame.6. The mobile kiln system of claim 5 , wherein the guide ...

ARC FURNACE

Provided is an arc furnace, including: a furnace body having a bottomed cylindrical shape; a furnace lid that openably closes an opening of the furnace body; an electrode that is provided at the furnace lid and melts a metal material supplied into the furnace body by electric discharge; a tilting floor that is tiltable within a plane substantially perpendicular to the tilting floor; and a rotation mechanism that is provided on the tilting floor inward from an outer circumference of the furnace body to support a bottom wall of the furnace body, and rotates the furnace body around a cylinder axis thereof. 1. An arc furnace , comprising:a furnace body having a bottomed cylindrical shape;a furnace lid that openably closes an opening of the furnace body;an electrode that is provided at the furnace lid and melts a metal material supplied into the furnace body by electric discharge;a tilting floor that is tillable within a plane substantially perpendicular to the tilting floor; anda rotation mechanism that is provided on the tilting floor inward from an outer circumference of the furnace body to support a bottom wall of the furnace body, and rotates the furnace body around a cylinder axis thereof.2. The arc furnace according to claim 1 , wherein the rotation mechanism comprises:a ring body that is provided at an outer circumferential portion of the bottom wall of the furnace body, and has a connecting portion formed on an inner circumferential surface of the furnace body;a bearing member that is provided at a necessary part of a bottom surface of the ring body to support the ring body rotatably around a center thereof; anda drive mechanism that is provided on the tilting floor inward of the ring body and has an output portion connected to the connecting portion.3. The arc furnace according to claim 2 , further comprising:stopper mechanisms that are provided at a ring body side and a tilting floor side, and are fitted to each other to restrict rotation of the ring body when ...

METAL OR SEMICONDUCTOR MELT REFINEMENT METHOD, AND VACUUM REFINEMENT DEVICE

An objective of the present invention is, in refining a metal or a semiconductor melt, without impairing refining efficiency, to alleviate wear and tear commensurate with unevenness in a crucible caused by instability in melt flow, and to allow safe operation over long periods of time such that leakages from the crucible do not occur. Provided is a metal or semiconductor melt refining method, in which, by using an AC resistance heating heater as a crucible heating method, the melt is heat retained and mixed by a rotating magnetic field which is generated by the resistance heating heater. The metal or semiconductor melt refinement method and a vacuum refinement device which is optimal for the refinement method are characterized in that, in order that a fluid instability does not occur in the boundary between the melt and the bottom face of the crucible when the melt is rotated by the rotating magnetic field, with a kinematic viscosity coefficient of the melt designated ν (m/sec), the radius of the fluid surface of the melt designated R (m), and the rotational angular velocity of the melt designated Ω (rad/sec), the operation is carried out such that the value of a Reynolds number (Re) which is defined as Re=R×(Ω/ν)̂(1/2) does not exceed 600. 1. A purification method of metal or semiconductor fused liquid performing purification while stirring the metal or semiconductor fused liquid , contained in a crucible heated by a heater disposed so as to surround the outer wall of the crucible by means of a magnetic field , characterized by performing so as not to exceed a Reynolds number Re value of 600 as represented by the following equation (2) , when the dynamic viscosity coefficient of the fused liquid is ν (m/sec.) , the radius of the liquid surface of the fused liquid is R (m) , and the rotational angular velocity of the fused liquid is Ω (rad/sec.):{'br': None, 'i': 'R', 'Re=×(Ω/ν)̂(1/2)\u2003\u2003(2)'}2. The purification method of metal or semiconductor fused liquid ...

MOUNTING ENCLOSURE WITH EXTERNALLY REMOVABLE INSERT PANEL

The disclosed technology includes a mounting enclosure having a replaceable insert panel used to mount an apparatus used in a melting furnace. The replaceable insert panel may be accessed and removed from a rear open end of the mounting enclosure to allow replacement without having to access the interior of the furnace. 1. A mounting enclosure system comprising: an aperture for receiving a removable insert panel;', 'a first channel positioned on a first internal surface of the mounting enclosure, the first channel configured to receive a first pole member of the removable insert panel; and', 'a second channel positioned on a second internal surface of the mounting enclosure, the second channel configured to receive a second pole member of the removable insert panel; and, 'a mounting enclosure having a first pole member extending outwards from a first surface of the removable insert panel; and', 'a second pole member extending outwards from a second surface of the removable insert panel., 'a removable insert panel having2. The mounting enclosure system of claim 1 , wherein the removable panel is configured to substantially occupy the aperture of the front surface of the mounting enclosure.3. The mounting enclosure system of claim 1 , wherein the first pole member of the removable insert panel comprises a first roller and the second pole member of the removable insert panel comprises a second roller.4. The mounting enclosure system of claim 3 , wherein an axis of rotation is formed by the first roller and the second roller.5. The mounting enclosure system of claim 3 , wherein a first end of the first channel of the first side surface is configured to receive the first roller and a first end of the second channel of the second side surface is configured to receive the second roller.6. The mounting enclosure system of claim 5 , wherein the first channel of the first side surface and the second channel of the second side surface are configured to guide the removable ...

CRUCIBLES FOR MELTING MATERIAL AND METHODS OF TRANSFERRING MATERIAL THEREFROM

A crucible for melting material includes at least one wall at least partially enclosing a volume and including an orifice through a portion thereof, and a chill plate supported for movement between at least a first position covering the orifice and a second position. The chill plate is configured for removal of heat from the at least one wall when in the first position. Some crucibles include a substantially flat bottom plate, a plurality of hollow tubes above the substantially flat bottom plate proximate a periphery thereof, and a plurality of O-rings. Each hollow tube is in contact with at least one O-ring, and each O-ring is in contact with the substantially flat bottom plate. A method includes moving the chill plate, initiating flow of molten material, terminating flow of molten material, and replacing the chill plate. Flow of material may be controlled by providing a vacuum in the crucible. 1. A crucible for melting material , comprising:at least one wall at least partially enclosing a volume and including an orifice through a portion thereof; anda chill plate supported for movement between at least a first position, wherein the chill plate is in contact with the portion of the at least one wall and covers the orifice, and a second position, wherein the chill plate is removed from contact with the at least one wall, and wherein the chill plate is configured for removal of heat from the portion of the at least one wall when the chill plate is in the first position.2. The crucible of claim 1 , wherein at least another portion of the at least one wall is configured to pass a cooling fluid adjacent the volume.3. The crucible of claim 1 , wherein the portion of the at least one wall adjacent the orifice comprises a thermally or electrically conductive material.4. The crucible of claim 1 , wherein the chill plate is supported for movement by a remotely controlled articulating device configured to move the chill plate between the first position and the second position ...

QUARTZ POURING & CASTING SYSTEM FOR NON-WETTING AMORPHOUS ALLOYS

Described herein is a crucible with a rod fused thereon to optimize pouring of molten material, and method of using the same. The crucible has a body configured for receipt of an amorphous alloy material in a vertical direction, and the rod extends in a horizontal direction from the body. The body of the crucible and the rod are formed from silica or quartz. The rod may be fused to the body of the crucible and provided off a center axis so that pouring molten material is improved when the crucible is rotated. 1. A crucible comprising a rod attached thereto , the crucible comprising a body configured for receipt of an amorphous alloy material in a vertical direction , and the rod extending in a horizontal direction from the body , wherein the body of the crucible and the rod are formed from silica or quartz.2. The crucible of claim 1 , wherein the rod is attached to a bottom of the body of the crucible.3. The crucible of claim 2 , wherein the rod is fused to the bottom of the crucible.4. The crucible of claim 1 , wherein the rod is attached to a vertical side wall of the body of the crucible.5. The crucible of claim 4 , wherein the rod is fused to the side wall of the crucible.6. The crucible of claim 2 , wherein an attachment portion of the rod is displaced from a centerline through the body.7. The crucible of claim 4 , wherein an attachment portion of the rod is displaced from a centerline through the body.8. A method comprising:providing an amorphous alloy material for melting in a container; andheating the amorphous alloy material for melting in the container using a heat source to a temperature above a melting temperature of the amorphous alloy material,wherein the container comprises silica and wherein the amorphous alloy material for melting does not wet or dissolve the container substantially during the method of melting.9. The method of claim 8 , wherein the container comprises fused silica claim 8 , quartz claim 8 , fused quartz claim 8 , clear fused quartz ...

Tapping device and method using induction heat for melt

A tapping device and method using induction heat for melt comprises melting furnace made of steel; heating unit disposed in the upper part in the melting furnace and made of graphite material; induction coil wound around the heating unit; insulator disposed adjacent to the bottom surface of the lower part of the melting furnace; supporter disposed outside the insulator; and firebricks disposed on the bottom surface of melting furnace and outside the supporter.

CAMPFIRE CRUCIBLE AND METHOD OF USE

A crucible assembly is suited for use melting aluminum cans at a campfire or similar fire. The crucible assembly may include a handle design that facilitates safe and easy handling of the crucible after it has been heated and contains melted aluminum. The crucible assembly may also include a portion having a convex surface that maintains contact with the ground during rotation of the crucible, thereby providing support and stability to the crucible as melted aluminum is poured therefrom. 1. An apparatus comprising:a crucible;a shaft operatively connected to the crucible; anda handle operatively connected to the shaft;wherein the handle includes a first portion, a second portion, and a third portion;wherein each of the second and third portions defines a respective first end, a respective second end, and a respective concave surface; andwherein the first and second ends of the second and third portions are mounted with respect to the shaft such that the concave surfaces of the second and third portions cooperate with the first portion to define open spaces.2. The apparatus of claim 1 , wherein the second and third portions form an angle therebetween claim 1 , said angle being between 110 degrees and 170 degrees.3. The apparatus of claim 2 , wherein the angle is between 130 degrees and 150 degrees.4. The apparatus of claim 1 , wherein the second and third portions extend below the first portion.5. The apparatus of claim 1 , wherein the first portion includes a member and the shaft extends through the member.6. The apparatus of claim 5 , wherein the second and third portions are bent rods.7. The apparatus of claim 1 , wherein the crucible defines a generally planar base; andwherein the apparatus further comprises a support member operatively connected to the crucible and defining a convex surface that is substantially adjacent to or contiguous with the planar base.8. An apparatus comprising:a crucible defining a chamber, and an outer surface including a substantially ...

Automated measurement process of the temperature of a fusion furnace by means of a temperature probe

The present invention relates to a process for measuring the temperature of a fusion furnace, in particular for the production of superalloy components with directional (DS)/monocrystalline (SX) grain structure by means of a lost wax precision casting process by means of a temperature probe, said fusion furnace comprising a melting chamber, a thermal chamber in connection with said melting chamber, and an extraction chamber in connection with said thermal chamber, a valve interposed between said two melting and thermal chambers, said probe comprising a thermocouple for high temperatures, a support element for positioning the temperature probe in the melting chamber of the furnace, displacement and measurement means of the position of the thermocouple for displacing and measuring the position of the thermocouple within the thermal chamber of the furnace, control device to actuate and control said displacement and measuring means.

Device and method for production purified, especially high purity, magnesium

A device for producing purified, especially high-purity, magnesium includes a reactor for vacuum distillation that is extended along a longitudinal axis (L). The reactor defines a reactor inner chamber having a heating region for heating magnesium. A crucible forms a crucible inner chamber for receiving purified magnesium vaporized and condensed by the device. A radial projection in the heating region defines a contact surface that extends essentially transverse to the longitudinal axis (L) and forms an essentially sealed connection with an edge of the crucible adjacent to the crucible inner chamber.

Thermoplastic extrusion melting kettle

A melting kettle for processing of thermoplastic material. The kettle disclosed herein obtains heat transfer by use of an oil jacketed tank with an adjoining main tank for storage of hot oil and a hose tank for recovery of the hot oil. Oil expelled from the oil jacket is directed to the main tank through an opening. Spillage of oil from the hose tank is directed to the main tank through an aperture. The melting kettle reduces the space needed for oil storage, and increases operator safety by eliminating additional transfer lines. Dual kettles benefit by having the adjoining main tank placed therebetween. 1. A dual melting kettle comprising: a first kettle having a cylindrical bottom with a first continuous sidewall extending upwardly therefrom to a top , said first sidewall encompassed by a first oil jacket formed adjacent thereto for dispersion of hot oil around said first kettle sidewall; a second kettle having a cylindrical bottom with a second continuous sidewall extending upwardly therefrom to a top , said second sidewall encompassed by a second oil jacket formed adjacent thereto for dispersion of hot oil around said second kettle sidewall; an outer wall formed around said first oil jacket of said first kettle and said second oil jacket of said second kettle forming a main tank and a hose tank; and a cover enclosing the tops of said first and second kettle , said main tank and said hose tank; wherein hot oil is introduced into each said first and second oil jacket for heating material placed in said kettles , said hot oil is expelled from said oil jackets into said main tank , whereby oil is drawn from said main tank for reheating through said hose tank.2. The dual melting kettle according to wherein each said oil jacket includes a baffle for even dispersion of hot oil around each said kettle.3. The dual melting kettle according to wherein each said kettle includes a base with baffles allowing controlled circulation of hot oil claim 1 , wherein hot oil ...

METHOD AND DEVICE FOR TREATING A METAL OR A MOLTEN METAL ALLOY USING AN ADDITION AGENT

Method and device for treating a metal or a molten metal alloy using an addition agent The invention relates to a method and device for treating a metal or a molten metal alloy using an addition agent, wherein the addition agent () is deposited in a local cavity () arranged at the bottom of a treatment ladle () and surrounded by a small protruding wall (), and a closing member () connected to movement means () is able to form, with the bottom of the treatment ladle, in a low insulating position, a chamber () including said local cavity and comprising an intermediate annular space () around the small wall. Application to the treatment of a molten cast iron using pure magnesium or a magnesium alloy. 1. A process for treating a molten metal or metal alloy using an additive agent , comprising:{'b': 37', '10', '2', '11, 'depositing the additive agent () in at least one local cavity () made in the bottom of a treatment ladle () and delimited by a low annular wall () that protrudes with respect to this bottom,'}{'b': 13', '17', '4', '2', '23', '11', '25', '10, 'lowering down to a bottom position at least one closure member () comprising a closure bell () so that this closure bell surrounds, at a distance, said low wall and so that its frontal edge bears against the bottom () of the treatment ladle (), creating an annular bearing zone () around and at a distance from the low wall () and that is located below the upper edge of the low wall, forming a chamber () that includes said local cavity (),'}{'b': '38', 'at least partially filling the treatment ladle with the molten metal (),'}{'b': '13', 'raising the closure member () so as to bring the molten metal and the additive agent into contact.'}2. An application of the process as claimed in claim 1 , for the treatment of a molten cast iron using pure magnesium or a magnesium alloy.3. An application of the process as claimed in claim 1 , for the treatment of a molten steel using calcium metal claim 1 , a ferrosilicon or a ...

MELTING UNIT FOR MELTING DOWN CASTING MATERIALS AND METHOD FOR PRODUCING MOLTEN MATERIAL FOR CASTINGS

A melting unit for melting down casting materials and a method for producing molten material for casting. 1. A melting apparatus for melting casting materials , comprising:a first furnace vessel configured for melting casting materials and for accommodating melt formed by melting; anda second furnace vessel located downstream of the first furnace vessel such that melt formed from casting materials in the first furnace vessel can be conducted into the second furnace vessel;wherein the second furnace vessel his configured for accommodating the melt which can be conducted from the first furnace vessel into the second furnace vessel and for increasing the temperature of the accommodated melt to the casting temperature for this melt.2. The melting apparatus as claimed in claim 1 , wherein the first furnace vessel inductively heatable.3. The melting apparatus as claimed in claim 1 , wherein the second furnace vessel is inductively heatable.4. The melting apparatus as claimed in claim 1 , wherein the melting apparatus is configured for conducting the melt heated to casting temperature in the second furnace vessel into a treatment or casting device.5. A process for producing a melt for casting using the melting apparatus of claim 1 , wherein the process comprises:introducing solid casting material into the first furnace vessel;melting the casting material in the first furnace vessel;conducting the melt formed in the first furnace vessel into the second furnace vessel; andincreasing the temperature of the melt accommodated in the second furnace vessel to the casting temperature for this melt.6. The process as claimed in claim 5 , wherein the process further comprises:producing a melt of a casting material;allowing the melt to cool to form a solid casting material; andproviding the solid casting material for introducing the solid casting material into the first furnace vessel. The invention relates to a melting apparatus for melting casting materials and also a process for ...

ELECTRIC ARC FURNACE

The present invention relates to an electric arc furnace, containing a furnace shell, an electrode, a furnace shell moving mechanism that supports the furnace shell so as to be movable on an installation surface, and a first insulation that electrically insulates between the furnace shell and the furnace shell moving mechanism. 1. An electric arc furnace , comprising:a furnace shell;an electrode;a furnace shell moving mechanism that supports the furnace shell so as to be movable on an installation surface; anda first insulation that electrically insulates between the furnace shell and the furnace shell moving mechanism.2. The electric arc furnace according to claim 1 , whereinthe furnace shell moving mechanism includes a first part that is fixed with respect to the installation surface and a second part that is fixed to the furnace shell and is movable with respect to the first part, andthe first part is electrically connected to the second part.3. The electric arc furnace according to claim 2 , further comprising:a connecting wire that electrically connects between the first part and the second part of the furnace shell moving mechanism, whereinthe connecting wire has a length capable of following an entire movable range of the second part.4. The electric arc furnace according to claim 1 , whereinthe furnace shell and the furnace shell moving mechanism are independently grounded.5. The electric arc furnace according to claim 1 , further comprising:a furnace roof that covers an opening of the furnace shell;a furnace roof moving mechanism that moves the furnace roof with respect to the furnace shell; anda second insulation that electrically insulates between the furnace roof moving mechanism and the furnace shell.6. The electric arc furnace according to claim 5 , whereinthe furnace shell and the furnace roof moving mechanism are independently grounded. The present invention relates to an electric arc furnace and, in particular, relates to an electric arc furnace in ...

Creep resistant Ni-based superalloy casting and method of manufacture for advanced high-temparature applications

One or more embodiments relates to a method of casting a creep-resistant Ni-based superalloy and a homogenization heat treatment for the alloy, The method includes forming a feed stock having Nickel (Ni) and at least one of Chromium (Cr), Cobalt (Co), Aluminum (Al), Titanium (Ti), Niobium (Nb), Iron (Fe), Carbon (C), Manganese (Mn), Molybdenum (Mo), Silicon (Si), Copper (Cu), Phosphorus (P), Sulfur (S) and Boron (B). The method further includes fabricating the creep-resistant Ni-based superalloy in a predetermined shape using the feed stock and at least one process such as vacuum induction melting (VIM), electroslag remelting (ESR) and/or vacuum arc remelting (VAR). 1. A method of casting a creep-resistant Ni-based superalloy , the method comprising: forming a feed stock comprising Nickel (Ni) and at least one of Chromium (Cr) , Cobalt (Co): Aluminum (Al) , Titanium (Ti) , Niobium (Nb) , Iron (Fe) , Carbon (C) , Manganese (Mn) , Molybdenum (Mo) , Silicon (Si) , Copper (Cu) , Phosphorus (P) , Sulfur (S) and Boron (B);fabricating an as-cast article comprising creep-resistant Ni-based superalloy in a predetermined shape using the feed stock and at least one process comprising vacuum induction melting (VIM), electroslag remelting (ESR) and/or vacuum arc remelting (VAR); andhomogenizing the as-cast article wherein homogenizing the as-cast article comprises a heating sequence of one hour at about 1075° C., three hours at about 1125° C., eight hours at about 1200° C. and eight hours at about 1250° C.2. The method of claim 1 , wherein the feed stock comprises at least Nickel (Ni) and Chromium (Cr).3. The method of wherein fabricating (he creep-resistant Ni-based superalloy comprises:melting the feed stock in a furnace, forming a liquid metal;pouring the liquid metal into a preheated mold, forming a molten metal; andsolidifying the molten metal in the preheated mold, forming the as-cast article.4. The method of wherein homogenizing the as-cast article further comprises ...

Apparatus to move and preheat metal material

An apparatus to move and preheat metal material (M) to be fed to a container comprises a containing structure, having an internal compartment and provided with a support wall, a conveyor for the material (M), a fume transit section whose volume reduces as it is distanced from said container along the longitudinal development of said containing structure, and a collector for hot fumes (F) whose volume increases in a manner correlated to said reduction in the fume transit section. The collector is located below said conveyor inside the internal compartment essentially along the entire longitudinal development of said containing structure. Moreover, one or more through apertures are made in said support wall to put the conveyor and the collector into fluidic connection.

MULTIZONE CRUCIBLE APPARATUS

A crucible apparatus includes a crucible and one or more induction coils arranged around the crucible. Upon application of electric power to the one or more induction coils, a first thermal zone is generated in at least a first portion of the crucible and a second thermal zone is generated in at least a second portion of the crucible, wherein a first thermal characteristic of the first thermal zone is different from a second thermal characteristic of the second thermal zone. 1. A crucible apparatus , comprising:a crucible;one or more induction coils arranged around the crucible such that, upon application of electric power to the one or more induction coils, a first thermal zone is generated in at least a first portion of the crucible and a second thermal zone is generated in at least a second portion of the crucible; andrefractory material arranged, at least in part, around the one or more induction coils,wherein a first thermal characteristic of the first thermal zone is different from a second thermal characteristic of the second thermal zone, andwherein in use, applying the electric power causes motion of a liquid in the crucible.2. The crucible apparatus of claim 1 , wherein:the first thermal zone is located between a base of the crucible and the second portion of the crucible;the first thermal characteristic is a first temperature of the first thermal zone;the second thermal characteristic is a second temperature of the second thermal zone; andthe second temperature is higher than the first temperature.3. The crucible apparatus of claim 1 , wherein the one or more induction coils comprise:a first induction coil arranged around the first portion of the crucible; anda second induction coil arranged around the second portion of the crucible, such that a first electric power is applicable to the first induction coil and a second electric power, different from the first electric power, is applicable to the second induction coil.4. The crucible apparatus of claim 3 ...

Composite material, heat-absorbing component, and method for producing the composite material

In a known composite material with a fused silica matrix there are regions of silicon-containing phase embedded. In order to provide a composite material which is suitable for producing components for use in high-temperature processes for heat treatment even when exacting requirements are imposed on impermeability to gas and on purity, it is proposed in accordance with the invention that the composite material be impervious to gas, have a closed porosity of less than 0.5% and a specific density of at least 2.19 g/cm, and at a temperature of 1000° C. have a spectral emissivity of at least 0.7 for wavelengths between 2 and 8 μm. 1. A composite material comprising:matrix of fused silica in which regions of silicon-containing phase have been embedded,{'sup': '3', 'wherein the composite material is impervious to gas, has a closed porosity of less than 0.5% and a specific density of at least 2.19 g/cm, and, at a temperature of 1000° C., has a spectral emissivity of at least 0.7 for wavelengths between 2 and 8 μm.'}2. The composite material according to claim 1 , wherein the matrix has pores therein with a maximum pore dimension of less than 10 μm.3. The composite material according to claim 1 , wherein the silicon-containing phase is present in a weight fraction that is not more than 5%.4. The composite material according to claim 1 , wherein the matrix consists essentially of fused silica having a hydroxyl group content of not more than 30 ppm by weight.5. The composite material according to claim 1 ,{'sub': '2', 'wherein the silicon-containing phase consists essentially of silicon having a metallic purity of at least 99.99% and wherein the matrix possesses a chemical purity of at least 99.99% SiOand a cristobalite content of not more than 1%.'}6. The composite material according to claim 1 ,wherein the silicon-containing phase exhibits non-spherical morphology with maximum dimensions of on average less than 20 μm.7. A heat-absorbing component claim 1 , comprising:at ...

METHOD FOR MAGNETIC FLUX COMPENSATION IN A DIRECTIONAL SOLIDIFICATION FURNACE UTILIZING AN ACTUATED SECONDARY COIL

A process for directional solidification of a cast part comprises energizing a primary inductive coil coupled to a chamber having a mold containing a material; generating an electromagnetic field with the primary inductive coil within the chamber, wherein said electromagnetic field is partially attenuated by a susceptor coupled to said chamber between said primary inductive coil and said mold; determining a magnetic flux profile of the electromagnetic field after it passes through the susceptor; sensing a component of the magnetic flux in the interior of the susceptor proximate the mold; positioning a mobile secondary compensation coil within the chamber; generating a control field from a secondary compensation coil, wherein said control field controls said magnetic flux; and casting the material within the mold. 1. A process for directional solidification of a cast part comprising:energizing a primary inductive coil coupled to a chamber having a mold containing a material;generating an electromagnetic field with the primary inductive coil within the chamber, wherein said electromagnetic field is partially attenuated by a susceptor coupled to said chamber between said primary inductive coil and said mold;determining a magnetic flux profile of the electromagnetic field;sensing a component of the magnetic flux proximate the mold within the chamber;positioning a mobile secondary compensation coil within the chamber:generating a control field from said mobile secondary compensation coil, wherein said control field controls said magnetic flux; andcasting the material within the mold.2. The process according to claim 1 , wherein said component of magnetic flux comprises a portion of the total electromagnetic field passing through said mold that is not attenuated by the susceptor.3. The process according to claim 2 , wherein said control field is increased or decreased to control a stirring in the material to produce a predetermined microstructure.4. The process according ...

ARC FURNACE

An arc furnace having a furnace vessel for melting steel, a cover for closing the furnace vessel and a pivot unit by means of which the cover can be moved away from the furnace vessel in which the furnace vessel is mounted so as to be movable in the vertical direction relative to the pivot unit, and the pivot unit has a holder for releasably fixing the cover in the vertical direction. 1. An arc furnace comprising:a furnace vessel for melting steel, a cover for closing the furnace vessel, and a swivel unit by means of which the cover can be moved away from the furnace vessel, wherein:a) the furnace vessel is mounted to be movable in a vertical direction relative to the swivel unit, andb) the swivel unit has a holder for releasably fixing the cover in a vertical direction.2. The arc furnace as claimed in claim 1 , wherein the furnace vessel is mounted in a cradle configured to move in a vertical direction.3. The arc furnace as claimed in claim 2 , further comprising hydraulic cylinders at the cradle located and configured for moving the cradle.4. The arc furnace as claimed in claim 3 , further comprising a plurality of the hydraulic cylinders which are activated separately.5. The arc furnace as claimed in claim 2 , further comprising struts arranged on the cradle and supporting the cover when the cover is operated to close the furnace vessel.6. The arc furnace as claimed in claim 1 , wherein the cover is supported to be movable away from the furnace vessel by the swivel unit claim 1 , employing a rotational movement about an axis which extends in a vertical direction.7. The arc furnace as claimed in claim 3 , further comprising struts arranged on the cradle and supporting the cover when the cover is operated to close the furnace vessel.8. The arc furnace as claimed in claim 4 , further comprising struts arranged on the cradle and supporting the cover when the cover is operated to close the furnace vessel.9. The arc furnace as claimed in claim 2 , wherein the cover is ...

Alloy melting and holding furnace

An induction furnace comprising a upper furnace vessel; an induction coil positioned below the upper furnace vessel; and a melt-containing vessel positioned inside the induction coil and communicably connected to the upper furnace vessel, wherein the positioning of the melt-containing vessel inside the induction coil defines a gap between an outside surface of the melt-containing vessel and an inside surface of the induction coil. A system for direct-chill casting comprising at least one an induction furnace; at least one in-line filter operable to remove impurities in molten metal; at least one gas source coupled to a feed port associated with the gas; and at least one device for solidifying metal by casting. A method of cooling an induction furnace comprising introducing a gas into a gap between an induction coil and a melt-containing vessel positioned inside the induction coil; and circulating the gas through the gap.

SMELTING PROCESS AND APPARATUS

A smelting vessel includes a plurality of heat pipes () positioned in a refractory lining of at least a part of the hearth () for cooling at least a part of the refractory lining. At least one of the heat pipes includes (a) a liquid phase of a heat transfer fluid, typically water, in a lower section of the heat pipe and (b) a vapor phase of the heat transfer fluid, typically steam, in an upper section of the heat pipe. The heat pipe also includes a vent to allow vapour phase to escape from the heat pipe to reduce the pressure or the temperature within the heat pipe when the vapour pressure or the temperature in the heat pipe exceeds a predetermined threshold pressure or temperature. 1. A smelting vessel for producing molten metal including a refractory lined hearth that in use is in contact with molten slag or molten metal in the vessel , with the hearth including a plurality of heat pipes positioned in a refractory lining of at least a part of the hearth for cooling at least a part of the refractory lining , with at least one of the heat pipes including:a liquid phase of a heat transfer fluid, typically water, in a lower section of the heat pipe; a vapor phase of the heat transfer fluid, typically steam, in an upper section of the heat pipe; and 'an open end, that is inside the heat pipe, and a closed end, that is outside the heat pipe, wherein, the closed end of the snorkel opens when the vapour pressure or the temperature in the heat pipe exceeds a predetermined threshold pressure or temperature, to allow the vapour phase to escape from the heat pipe to reduce the pressure or the temperature within the heat pipe.', 'a vent includes, a snorkel extending into the heat pipe, the snorkel comprising2. The vessel defined in wherein the vent is adapted to allow vapour phase rather than the liquid phase to escape from the heat pipe and to retain the liquid phase in the heat pipe.3. The vessel defined in wherein the snorkel that extends into the heat pipe and has the open ...

Synthesis method for producing a calcium zirconate-containing material and batch and coarse ceramic refractory product having a pre-synthesized calcium zirconate-containing granular material

A synthesis method for producing a refractory oxide-ceramic material of CaZrO3, in particular in the form of a refractory granular material that is preferably mechanically comminuted, in particular crushed and/or ground, as well as to a batch and a coarse ceramic, shaped or unshaped, refractory product containing at least one pre-synthesized refractory calcium zirconate-containing granular material.

SPRAY COOLING FURNACE ELECTRODES WITH A COOLING LIQUID THAT CONTAINS SURFACTANTS

A method for cooling furnace electrodes using a cooling liquid containing surfactants. This method can be applied to electrodes used in electric arc furnaces and ladle metallurgy furnaces. The method can involve spraying the cooling liquid onto the electrode, thereby lowering the temperature of the electrode and reducing electrode consumption. 1. A method for cooling a furnace electrode , comprising:mixing a surfactant with water to form a cooling liquid so that the surfactant is present in the cooling liquid in an amount in a range of from 10 mg/l to 5,000 mg/l, andspraying at least a surface of the furnace electrode disposed adjacent a furnace with the cooling liquid to cool the furnace electrode.2. The method of claim 1 , wherein the surfactant comprises nonylphenol or a nonylphenoxy group.3. The method of claim 2 , wherein the surfactant further comprises an oxirane polymer.4. The method of claim 2 , wherein the surfactant comprises nonylphenol.5. The method of claim 1 , wherein the surface tension of the cooling liquid is in a range of from 54.9 mN/m to 69.5 mN/m at room temperature.6. The method of claim 1 , wherein the surface tension of the cooling liquid is in a range of from 58.5 mN/m to 65.8 mN/m at room temperature.7. The method of claim 1 , wherein the surfactant is present in the cooling liquid in an amount in a range of from 50 mg/l to 1 claim 1 ,000 mg/l.8. The method of claim 1 , wherein the surfactant is present in the cooling liquid in an amount in a range of from 100 mg/l to 700 mg/l.9. The method of claim 1 , wherein the surfactant is present in the cooling liquid in an amount in a range of from 300 mg/l to 600 mg/l.10. The method of claim 1 , wherein the furnace electrode is an electric arc furnace electrode or a ladle metallurgy furnace electrode.11. The method of claim 1 , wherein a sufficient amount of the cooling liquid is applied to the surface of the furnace electrode so that the oxidative electrode consumption is reduced as compared to a ...

DROSS PROCESSING SYSTEM

A dross processing system crucible comprising a substantially vertical inner wall having an upper end, a lower end, an outer surface, and an inner surface, a bottom having an upper surface and a lower surface, the upper surface affixed to the lower end of the inner wall. A blockable port is disposed in the bottom, and a thermal insulating material covers the outer surface of the vertical inner wall and the lower surface of the bottom. An outer vessel is affixed to the upper end of the substantially vertical inner wall, and the thermal insulating material is disposed between the outer surface of the inner wall and the outer vessel. 1. A dross processing system crucible comprising:a. a substantially vertical inner wall having an upper end, a lower end, an outer surface, and an inner surface,b. a bottom having an upper surface and a lower surface, the upper surface affixed to the lower end of the inner wall,c. a blockable port disposed in the bottom,d. a thermal insulating material covering the outer surface of the vertical inner wall and the lower surface of the bottom, ande. an outer vessel affixed to the upper end of the substantially vertical inner wall, wherein the thermal insulating material is disposed between the outer surface of the inner wall and the outer vessel.2. The crucible of claim 1 , further comprising a protective coating on the inside surface of the inner wall and on the upper surface of the bottom.3. The crucible of claim 2 , whereas exposure to molten metal causes the coating to become an aerated insulating coating.4. The crucible of claim 1 , wherein the inner wall is stainless steel having a thickness of between 0.05 and 0.25 inches and the bottom is stainless steel having a thickness of between 0.1 and 0.4 inches.5. The crucible of claim 1 , wherein the inner wall is stainless steel having a thickness of between 0.1 and 0.15 inches and the bottom is stainless steel having a thickness of between 0.2 and 0.3 inches.6. The crucible of claim 1 , ...

SYSTEM AND METHOD FOR ADDING MOLTEN LITHIUM TO A MOLTEN ALUMINIUM MELT

A system for adding molten lithium and inert gas in a molten aluminium or aluminium alloy melt including, a crucible defining a chamber for melting and storing molten metal, in particular molten lithium; the crucible having a sealed lid; an inert gas delivery system for maintaining chamber overpressure using inert gas; a conduit for withdrawing a portion of the molten metal from the crucible. The conduit arranged with respect to the crucible or the sealed lid so the conduit inlet can be moved below and above the molten metal surface level and arranged for feeding molten metal from the crucible to a separate holding furnace with the help of overpressure when the conduit inlet is below the molten metal surface level and arranged for feeding inert gas from the crucible to the separate holding furnace when the conduit inlet is above the molten metal surface level. 1. A system for adding molten lithium and an inert gas in a melt of molten aluminium or aluminium alloy in a holding furnace , the system comprising ,a crucible defining a chamber for melting and storage of molten metal;the crucible being equipped with a sealed lid;an inert gas delivery system arranged for maintaining an overpressure in the chamber of the crucible using an inert gas;a conduit, having a conduit inlet and a conduit outlet, for withdrawing a portion of the molten metal from the crucible,and the conduit being movably arranged with respect to the crucible or the sealed lid such that the conduit inlet can be controllably moved below and above the surface level of the molten metal, and whereinthe conduit is arranged for feeding of the molten metal from the crucible to a separate molten metal holding furnace with the help of an overpressure when the conduit inlet is below the surface level of the molten metal and the conduit is further arranged for feeding of the inert gas from the crucible to the separate molten metal holding furnace when the conduit inlet is above the surface level of the molten ...

Reaction container and vacuum heat treatment apparatus having the same

A method of fabricating a reaction container according to the disclosure comprises putting graphite power in a molded member; and pressing the molded member, wherein the graphite powder comprises first graphite powder and second graphite powder having different particle sizes. A vacuum heat treatment apparatus comprises a chamber, a reaction container in the chamber, and a heat member heating the reaction container in the chamber, in which the reaction container comprises graphite, and the reaction container has a concentration in the range of 1.8 to 2.0.

USE OF A HEAT INSULATING MOLDED BODY FOR ISOLATION OF MOLTEN METAL AGAINST THE ATMOSPHERE OR AGAINST A METALLURGICAL VESSEL

An unfired, refractory molded body (), includes a binding agent matrix () containing at least one set, permanent binding material and aggregate grains () with and/or of biogenic silicic acid, preferably with and/or of rice husk ash, which grains are incorporated into the binding agent matrix (), for thermal isolation of a molten metal, especially of molten steel, and/or of a metal ingot solidifying from the molten metal, and also the use of the molded body () for thermal isolation of a refractory lining, in particular in a multiple-layer brick wall or in a heat-treatment furnace, or as a corrosion barrier, e.g. against alkali attack, or as a fire protection lining or as filter material for hot gases. 11233214. A use of an unfired , refractory molded body () , comprising a binding agent matrix () containing at least one set , permanent binding agent and aggregate grains () with and/or of biogenic silicic acid , preferably with and/or of rice husk ash , which grains () are incorporated into the binding agent matrix () , for thermal isolation of molten metal , especially of molten steel , and/or of a metallic ingot () solidifying from the molten metal.2114. The use according to claim 1 , characterized in that the molded body () is used for thermal isolation of the molten steel and/or of the ingot () for the production of steel.3114. The use according to claim 2 , characterized in that the molded body () is used for thermal isolation of the molten metal claim 2 , in particular of the molten steel claim 2 , and/or of the ingot () in rising ingot casting.411514. The use according to claim 3 , characterized in that the molded body () is used for thermal isolation of a ingot head () of the ingot ().5114. The use according to claim 1 , characterized in that the molded body () is used for thermal isolation of the molten metal claim 1 , in particular of molten steel claim 1 , located in a metallurgical vessel claim 1 , and/or of the ingot () located in a metallurgical vessel ...

APPARATUS FOR THE PRODUCTION OF METAL

Apparatus for the production of metal including a furnace for melting metal provided with a crucible inside which a metal charge is melted. The furnace provides for tapping a liquid metal disposed on the bottom of the crucible and includes a tapping channel for the transfer of the liquid metal from the furnace. The apparatus also includes a delivery unit for delivering inert material (S) having a delivery device for the selective delivery of the inert material (S) into the tapping channel. 1. An apparatus for the production of metal comprising:a furnace for melting metal provided with a crucible inside which a metal charge is melted, and with a covering panel disposed on the upper part, said furnace being provided with means for tapping a liquid metal disposed on the bottom of said crucible and comprising a tapping channel for the transfer of said liquid metal from the furnace,a unit for delivering inert material (S) comprising a delivery device for the selective delivery of the inert material (S) into said tapping channel,a hatch unit disposed on said covering panel and configured to allow access to the inside of said crucible for the delivery of said inert material (S), wherein said delivery unit comprises support means configured to rotatably support said delivery device in order to take it from an operative condition, in which it faces toward said furnace and is aligned with said hatch unit, to a stand-by or parked condition in which it is disposed outside the bulk of the furnace, and vice versa.2. The apparatus as in claim 1 , wherein said support means comprise a pedestal claim 1 , stably attached to an installation surface outside said furnace claim 1 , and a mobile base stably attached to said pedestal and configured to take said delivery device from said operative condition to said stand-by or parked condition and vice versa.3. The apparatus as in claim 1 , wherein the hatch unit comprises a support plate claim 1 , stably associated with the covering panel ...

Systems and methods for forming and processing alloy ingots

Processes and methods related to producing, processing, and hot working alloy ingots are disclosed. An alloy ingot is formed including an inner ingot core and an outer layer metallurgically bonded to the inner ingot core. The processes and methods are characterized by a reduction in the incidence of surface cracking of the alloy ingot during hot working.

CRUCIBLE DEVICE WITH TEMPERATURE CONTROL DESIGN AND TEMPERATURE CONTROL METHOD THEREFOR

A crucible device with temperature control design includes a crucible body, an induction coil unit, a nozzle flange body and a melt delivery tube and a temperature control unit. The induction coil unit surrounds the crucible body, provides a heat source during use, and is configured to enable a metal material to melt and produce a melt having a melting skull. The melt delivery tube is communicated via the nozzle flange body to a bottom of the crucible body and is configured to deliver the melt from the crucible body. The temperature control unit includes a microprocessor, a heater and a temperature sensor which are electrically coupled to each other, and are configured to control a curve of the melting skull to drop to a preset position. 1. A crucible device with temperature control design , wherein the crucible device comprises:a crucible body;an induction coil unit, surrounding the crucible body, providing a heat source during use, and configured to enable a metal material to melt and produce a melt having a melting skull;a nozzle flange body and a melt delivery tube, wherein the melt delivery tube is communicated to a bottom of the crucible body via the nozzle flange body, and is configured to deliver the melt from the crucible body; anda temperature control unit, comprising a microprocessor, a heater, and a temperature sensor that are electrically coupled to each other, wherein:the temperature sensor is configured to measure a temperature of a boundary of the nozzle flange body which is close to the melt, the heater is configured to inductively heat the nozzle flange body, and the microprocessor adjusts a power of the heater according to the measured temperature of the boundary of the nozzle flange body, so as to control the temperature of the boundary of the nozzle flange body to reach a predetermined temperature, and to further control a curve of the melting skull to drop to a preset position.2. The crucible device with temperature control design according to ...

WATER COOLED BOX FOR A METAL MAKING FURNACE

A water cooled box to be installed in the side wall of a metal making furnace to hold and protect implements such as a burner, a lance, or a material (i.e., carbon or lime) injection device. The box preferably comprises a copper outer shell and a steel inner shell liner welded together, whereby a chamber is formed through which cooling water passes. The box further comprises an inlet and outlet for the water flow and a plurality of conduit passages between the copper and steel shells for mounting the aforementioned implements. The copper shell has bars or slots for slag retention and the steel shell has means for mounting the box into the furnace wall. The copper shell is formed into a curved U-shape for preventing cracking due to thermal mechanical stress and to raise the natural frequency of the panel to resist vibration which can also cause cracking. 1. A water cooled box for use in a metal making furnace , the water cooled box comprising:an outer shell having a substantially U-shaped cross-section, an inner surface, and at least one conduit passageway;an inner shell having a substantially U-shaped cross-section, an inner surface, a plurality of water baffles, at least one conduit passageway, and at least one mounting flange;wherein the outer shell is primarily comprised of a metal having a higher thermal conductivity than that of a metal primarily comprising the inner shell;wherein the outer shell and the inner shell are joined at the at least one mounting flange, thereby defining a chamber through which water flows along a path defined by the water baffles, the inner surface of outer shell, and inner surface of the inner shell; andwherein the at least one conduit passageway of the inner shell or the outer shell comprises a flexible joint.2. The water cooled box of claim 1 , wherein the outer shell is primarily comprised of copper.3. The water cooled box of claim 1 , wherein the inner shell is primarily comprised of steel.4. The water cooled box of claim 1 , ...

COLD CRUCIBLE INSERT

A cold crucible may include a plurality of fingers extending in an axial direction and arranged in a circumferential direction, and a slit between each pair of adjacent fingers. The cold crucible may also include at least one insert in each of the slits. The at least one insert may include a first component made of a soft magnetic composite material, and a second component made of a soft magnetic component. 1. An insert for a cold crucible , comprising:a first component made of a soft magnetic composite material; anda second component made of a soft magnetic material.2. The insert of claim 1 , wherein at least one of the soft magnetic material has a higher Curie temperature than the soft magnetic composite material.3. The insert of claim 1 , wherein the first component has a higher saturation flux density than the soft magnetic material.4. The insert of claim 1 , wherein the first component has a substantially wedged shape.5. The insert of claim 1 , wherein the second component includes at least one sheet of the soft magnetic material.6. The insert of claim 1 , wherein the soft magnetic material is a solid metal.7. A cold crucible comprising:a plurality of fingers extending in an axial direction and arranged in a circumferential direction;a slit between adjacent fingers and extending radially from an inner diameter of the cold crucible to an outer diameter of the cold crucible; andat least one insert in at least one slit;wherein the at least one insert includes a first component made of a soft magnetic composite material, and a second component made of a soft magnetic component.8. The cold crucible of claim 7 , wherein at least one insert is located in at least one of a top and a bottom of the corresponding slit in an axial direction.9. The cold crucible of claim 7 , wherein only the second component is at a radial end of the slit adjacent the inner diameter of the crucible.10. The cold crucible of claim 7 , wherein at least one of:the soft magnetic material has a ...

RADIANT HEATING PANEL FOR MELTING FURNACE

A radiant heating panel has an inner side surface configured to face into a combustion chamber and an outer side surface configured to face oppositely away from the combustion chamber. The panel has interconnected sections formed of ceramic material. The panel sections are elongated with adjacent longitudinal edge portions, and are joined and sealed together along the adjacent longitudinal edge portions. The outer side surface of the panel has a contour that undulates laterally across the panel sections. 1. An apparatus for use with a burner arranged to fire into a combustion chamber , comprising:a radiant heating panel having an inner side surface configured to face into the combustion chamber, and having an outer side surface configured to face oppositely away from the combustion chamber;wherein the radiant heating panel includes interconnected panel sections formed of material comprising ceramic material.2. An apparatus as defined in wherein the material comprises silicon carbide.3. An apparatus as defined in wherein the material comprises silicon nitride.4. An apparatus as defined in wherein the interconnected panel sections include elongated sections providing the outer side surface with a contour that undulates laterally across the sections.5. An apparatus as defined in wherein the elongated sections include sections having concave contours at the outer side surface claim 4 , and the concave contours have nonconcentric arcuate profiles.6. An apparatus as defined in wherein the elongated sections include sections having concave contours at the outer side surface and the concave contours have intersecting portions with linear profiles reaching laterally across the sections.7. An apparatus as defined in wherein elongated sections further provide the inner side surface with a contour that undulates laterally across the sections.8. An apparatus as defined in wherein the interconnected panel sections include elongated sections having laterally adjacent longitudinal ...

Method for magnetic flux compensation in a directional solidification furnace utilizing an actuated secondary coil

A process for directional solidification of a cast part comprises energizing a primary inductive coil coupled to a chamber having a mold containing a material; generating an electromagnetic field with the primary inductive coil within the chamber, wherein said electromagnetic field is partially attenuated by a susceptor coupled to said chamber between said primary inductive coil and said mold; determining a magnetic flux profile of the electromagnetic field after it passes through the susceptor; sensing a component of the magnetic flux in the interior of the susceptor proximate the mold; positioning a mobile secondary compensation coil within the chamber; generating a control field from a secondary compensation coil, wherein said control field controls said magnetic flux; and casting the material within the mold.

WATER COOLED BOX FOR A METAL MAKING FURNACE

A water cooled box to be installed in the side wall of a metal making furnace to hold and protect implements such as a burner, a lance, or a material (i.e., carbon or lime) injection device. The box preferably comprises a copper outer shell and a steel inner shell liner welded together, whereby a chamber is formed through which cooling water passes. The box further comprises an inlet and outlet for the water flow and a plurality of conduit passages between the copper and steel shells for mounting the aforementioned implements. The copper shell has bars or slots for slag retention and the steel shell has means for mounting the box into the furnace wall. The copper shell is formed into a curved U-shape for preventing cracking due to thermal mechanical stress and to raise the natural frequency of the panel to resist vibration which can also cause cracking. 1. A water cooled box for use in a metal making furnace , the water cooled box comprising:an outer shell having a substantially U-shaped cross-section, an inner surface, and at least one conduit passageway;an inner shell having a substantially U-shaped cross-section, an inner surface, a plurality of water baffles, at least one conduit passageway, and at least one mounting flange;wherein the outer shell is primarily comprised of a metal having a higher thermal conductivity than that of a metal primarily comprising the inner shell;wherein the outer shell and the inner shell are joined at the at least one mounting flange, thereby defining a chamber through which water flows along a path defined by the water baffles, the inner surface of outer shell, and inner surface of the inner shell; andwherein the at least one conduit passageway of the inner shell or the outer shell comprises a flexible joint.2. The water cooled box of claim 1 , wherein the outer shell is primarily comprised of copper.3. The water cooled box of claim 1 , wherein the inner shell is primarily comprised of steel.4. The water cooled box of claim 1 , ...

Glucono delta-lactone for treatment of vaginal fungal infections

The present invention relates to a pharmaceutical formulation for vaginal administration, wherein the formulation comprises a pharmaceutical acceptable excipient and glucono δ-lactone, wherein the glucono δ-lactone is present in an amount of 5 to 99 wt % of the formulation. The invention also relates to a pharmaceutical formulation according to the invention for use in the prevention or treatment of a urogenital fungal infection. Furthermore, the invention relates to glucono δ-lactone (formula (III)), for use in the in the prevention or treatment of a fungal infection.

CERAMIC CALCINER APPARATUS AND ASSOCIATED SYSTEMS AND METHODS

The present disclosure provides calciners configured to convert a feedstock into a calcined product. 1. A calciner comprising:a crucible;a heating element in proximity to the crucible and configured to heat the crucible; and to provide a processing fluid to the crucible, and', 'to be articulated in a pattern within the crucible., 'a delivery tube configured2. The calciner of claim 1 , wherein the heating element is disposed around the crucible in one or more loops.3. The calciner of or further comprising a removable cover configured to retain one or more components in the calciner.4. The calciner of claim 3 , wherein the removable cover includes a void through with the delivery tube is positioned.5. The calciner of further comprising an electrolysis apparatus connected to the delivery tube by a flexible conduit claim 3 , wherein the electrolysis apparatus is configured to electrolytically decompose an intermediate feedstock to form a process reactant.6. A calciner comprising:a crucible;a heating element in proximity to the crucible and configured to heat the crucible;a dome configured to seal a first portion of the crucible to enable a positive pressure to be applied to the first portion of the crucible;a conduit positioned through the dome configured to enable the positive pressure to be applied through the conduit to the first portion of the crucible;an insulated tube positioned through the dome and having a first end positioned in the first portion of the crucible; anda dispensing port configured to selectively enable material to be dispensed from the first portion of the crucible.7. The calciner of further comprising a second heating element disposed about the bottom check valve.8. The calciner of or claim 6 , wherein the dispensing port comprises a bottom check valve and a solenoid configured to displace the bottom check valve upon energizing.9. The calciner of any one of to claim 6 , wherein the crucible further comprises a second portion configured to contain ...

DEVICE FOR POSITIONING AT LEAST ONE ELECTRODE FOR SMELTING FURNACES

A device for positioning at least one electrode for smelting furnaces includes a container made of metal structural work lined with refractory material (crucible) and a water-cooled structure and by a lid or roof with which vertical electrodes are associated, each one being slideably associated with temporary locking elements, such as a column locking clamp. The device is arranged to the side of a smelting furnace and below a parking position of the electrodes in the periods of interruption of operation of the smelting furnace. The device is constituted by a fixed base with which at least one lifting element, which can slide vertically with respect to the fixed base and is provided with elements that are adapted to determine its position in terms of height and is provided with a load cell, is associated in an upper region. 1. A device for positioning at least one electrode , usable in electric smelting furnaces that are constituted by a container made of metal structural work lined with refractory material (crucible) and a water-cooled structure and by a lid or roof with which vertical electrodes are associated , each one being slideably associated with temporary locking elements , such as a column locking clamp , the device being arranged to a side of a smelting furnace and below a parking position of said electrodes in the periods of interruption of operation of said smelting furnace , wherein the device comprises a fixed base with which at least one lifting means , which slides vertically with respect to said fixed base and is provided with means that are adapted to determine its position in terms of height and is provided with a load cell , is associated in an upper region , said device determining a position and a weight of each one of said electrodes individually and independently of the others , said device being adapted to temporarily support and to vary the position in terms of height of each one of said electrodes individually and independently.2. The ...

SYSTEM FOR GAS PURIFICATION IN AN INDUCTION VACUUM FURNACE AND METHOD OF MAKING SAME

A system and method for removing impurities in an induction furnace cooling system is disclosed. An induction furnace for heating a workpiece includes a chamber, an induction coil positioned in the chamber to provide for heating of the workpiece when a current is provided to the induction coil, and a cooling system fluidly coupled to an interior volume of the chamber, the cooling system including a heat exchanger, a blower fluidly coupled to the heat exchanger and configured to cause a gas to flow through the heat exchanger, and a filter assembly comprising a filtering device, the filter assembly fluidly coupled to the blower and configured to remove impurities from the gas flowing through the cooling system. 1. An induction furnace for heating a workpiece , the induction furnace comprising:a chamber;an induction coil positioned in the chamber to provide for heating of the workpiece when a current is provided to the induction coil; and a heat exchanger;', 'a blower fluidly coupled to the heat exchanger and configured to cause a gas to flow through the heat exchanger; and', 'a filter assembly comprising a filtering device, the filter assembly fluidly coupled to the blower and configured to remove impurities from the gas flowing through the cooling system., 'a cooling system fluidly coupled to an interior volume of the chamber, the cooling system comprising2. The induction furnace of wherein the filter assembly comprises a housing; andwherein the filtering device comprises a filter material positioned within the housing and configured to remove impurities from the gas flowing through the cooling system.3. The induction furnace of wherein the filter material comprise one of metallic wool claim 2 , charcoal claim 2 , or metallic mesh claim 2 , with the filter material configured to filter out at least one of particulate matter claim 2 , organics claim 2 , oxygen claim 2 , or another desired substance.4. The induction furnace of wherein the filter assembly is positioned ...

INTEGRAL MELTER AND PUMP SYSTEM FOR THE APPLICATION OF BITUMINOUS ADHESIVES AND HIGHWAY CRACK-SEALING MATERIALS, AND A METHOD OF MAKING THE SAME

An integral melter and pump assembly or system, and a method of making the same, is disclosed wherein the pump assembly comprises a melter housing having a melter container defined within the melter housing. A pump mounting plate is integrally mounted within a side wall portion of the melter container and an output dispensing supply pump is mounted directly upon an external surface portion of the pump mounting plate in a surface-to-surface manner such that heat generated internally within the melter container is effectively transferred by conduction from the melter container and through the pump mounting plate such that the temperature level of the output pump is elevated to, and maintained at, a predeterminedly desired level even when the pump, is not disposed in its output dispensing mode. In addition, since the output dispensing or material supply pump is disposed externally of the melter container and the melter housing, the output dispensing or material supply pump is easily and readily accessible in case maintenance becomes necessary. Optionally, an oil jacket or chamber can surround the melter container so as to more evenly or consistently provide heating of the melter container. 1. An integral melter and pump system , comprising:a melter container for containing melted material to be dispensed, and comprising a floor member and a first annular wall member integrally connected to said floor member and having an inner peripheral surface facing an interior portion of said melter container and an outer peripheral surface external of said melter container;a burner for providing heat to said melter container for melting material charged into said melter container such that the material charged into said melter container is melted by the heat from said burner; andan output dispensing supply pump mounted directly upon said outer peripheral surface of said first annular wall member of said melter container in a surface-to-surface manner such that heat from said ...

Composite material, heat-absorbing component, and method for producing the composite material

In a known composite material with a fused silica matrix there are regions of silicon-containing phase embedded. In order to provide a composite material which is suitable for producing components for use in high-temperature processes for heat treatment even when exacting requirements are imposed on impermeability to gas and on purity, it is proposed in accordance with the invention that the composite material be impervious to gas, have a closed porosity of less than 0.5% and a specific density of at least 2.19 g/cm, and at a temperature of 1000° C. have a spectral emissivity of at least 0.7 for wavelengths between 2 and 8 μm. 1. A composite material comprising:a matrix of fused silica in which regions of a phase containing silicon in elemental form have been embedded,{'sup': '3', 'wherein the composite material is impervious to gas, has a closed porosity of less than 0.5% and a specific density of at least 2.19 g/cm, and, at a temperature of 1000° C., has a spectral emissivity of at least 0.7 for wavelengths between 2 and 8 μm.'}2. The composite material according to claim 1 , wherein the matrix has pores therein with a maximum pore dimension of less than 10 μm.3. The composite material according to claim 1 , wherein the phase containing silicon in elemental form is present in a weight fraction that is not more than 5%.4. The composite material according to claim 1 , wherein the matrix consists essentially of fused silica having a hydroxyl group content of not more than 30 ppm by weight.5. The composite material according to claim 1 ,{'sub': '2', 'wherein the phase containing silicon in elemental form consists essentially of silicon having a metallic purity of at least 99.99% and wherein the matrix possesses a chemical purity of at least 99.99% SiOand a cristobalite content of not more than 1%.'}6. The composite material according to claim 1 ,wherein the phase containing silicon in elemental form exhibits non-spherical morphology with maximum dimensions of on ...

DEVICE FOR SUPPLYING ENERGY TO MELTING FURNACES

The invention relates to a coupling device () for electrically connecting a melting furnace, in particular the crucible () of a melting furnace, to an energy source, comprising at least one contact body (), which is connected to the energy source by means of high current cables (), and at least one molded part () as part of an electrical receptacle () on the melting furnace, in particular the crucible (), characterized in that a form-fitted and electrically conductive connection of the contact body () and the molded part () can be established by inserting the contact body () into the molded component (). The invention further relates to a melting furnace, in particular an induction furnace and a vacuum induction melting furnace (VIM), comprising at least one such coupling device. 1. A coupling system for electrically connecting a smelter to an electrical power source , the coupling system comprising:at least one contact connected to the electrical power source by a high-current cableat least one countercontact as part of an electrical receptacle on the smelter,means for interlocking and electrically conducting connecting the contact and the countercontact by sliding the contact into the countercontact; anda traverse system is provided for moving the at least one contact from a parking position with the at least one contacts spaced from the at least one countercontact into a coupling position with the at least one contacts engaging the at least one countercontact.2. The coupling system as claimed in claim 1 , further comprising:a locking system between the at least one contact and the at least one countercontact.3. The coupling system as claimed in claim 2 , wherein the locking system includes at least one latch pawl that engages behind a latch formation and is connected to the contact.4. (canceled)5. The coupling system as claimed in claim 1 , wherein the traverse system has an electromechanical claim 1 , a pneumatic or preferably a hydraulic drive.6. The coupling ...

BURNER TUBE INSERT

A furnace melt tower includes a burner block having an inner wall defining a burner port for receiving a burner nozzle and a burner tube insert received within the burner port between the inner wall and the burner nozzle to protect the burner port and ease cleaning and repair. The burner tube insert includes a cylindrical body having a first end and a second end and a flange extending radially outward from the first end of the burner tube insert. 1. A furnace melt tower , comprising:a burner block having an inner wall defining a burner port for receiving a burner nozzle; anda burner tube insert received within the burner port between the inner wall and the burner nozzle.2. The furnace melt tower of wherein the burner tube insert further comprises:a cylindrical body having a first end and a second end; anda flange extending radially outward from the first end of the burner tube insert, the flange having a first surface and a second surface.3. The furnace melt tower of wherein the second end of the burner tube insert is frustoconical in shape.4. The furnace melt tower of wherein the first surface of the flange engages an outer wall of the burner block.5. The furnace melt tower of wherein the second surface of the flange engages a portion of the burner nozzle.6. The furnace melt tower of wherein the cylindrical body of the burner tube insert has a gas port.7. A burner tube insert for use with a port in a burner block of a furnace melt tower claim 5 , comprising:a cylindrical body having a first end and a second end; anda flange extending radially outward from the first end of the burner tube insert, the flange having a first surface and a second surface.8. The burner tube insert of wherein the second end is frustoconical in shape.9. The burner tube insert of wherein the first surface of the flange is engageable with an outer wall of the burner block.10. The burner tube insert of wherein the second surface of the flange is engageable with a portion of a burner nozzle.11 ...

SYSTEM FOR MAINTAINING INTERIOR VOLUME INTEGRITY IN AN INDUCTION VACUUM FURNACE AND METHOD OF MAKING SAME

An induction furnace for heating a workpiece includes a chamber and an insulation cylinder positioned therein, with the insulation cylinder including a base cover movable between first and second positions, and the first position positioning the workpiece within a heating zone and the second position positioning the workpiece within a cooling zone. A translation system in the furnace includes a first member coupled to the base cover of the insulation cylinder and extending through a wall of the chamber, an actuator coupled to the first member, the actuator configured to translate the first member to move the base cover of the insulation cylinder between the first and second positions, and an expansion member encircling a portion of the first member and configured to hermetically seal an interior volume of the chamber from an environment volume external to the chamber. 1. An induction furnace for heating a workpiece , the induction furnace comprising:a chamber;an insulation cylinder positioned within the chamber, the insulation cylinder including a base cover that is selectively movable between a first position and a second position, wherein the first position is configured to position the workpiece within a heating zone of the induction furnace and wherein the second position is configured to position the workpiece within a cooling zone of the induction furnace; and a first member coupled to the base cover of the insulation cylinder and extending through a wall of the chamber;', 'an actuator coupled to the first member, the actuator configured to translate the first member to move the base cover of the insulation cylinder between the first and second positions; and', 'an expansion member encircling a portion of the first member and configured to hermetically seal an interior volume of the chamber from an environment volume external to the chamber., 'a translation system comprising2. The induction furnace of wherein the expansion member comprises a first bellows ...

METAL FORMING APPARATUS

A metal forming apparatus includes a smelting device, a molding device, an injection device and a vacuumizing device. The smelting device defines a smelting chamber, and includes a rotatable crucible and a heating unit both disposed within the smelting chamber. The molding device defines a molding chamber sealedly communicated with the smelting chamber. The injection device includes a charging barrel assembly sealedly disposed at a joint between the molding device and the smelting device and an injection unit sealedly connected with the smelting device. The vacuumizing device is sealedly connected with the smelting device and the molding device respectively so as to vacuumize the smelting chamber and the molding chamber. 1. A metal forming apparatus comprising:a smelting device, which defines a smelting chamber having a feeding port, and comprises a rotatable crucible disposed within the smelting chamber and configured to contain a raw material, and a heating unit disposed in the smelting chamber and configured to heat the raw material in the crucible to obtain a molten raw material;a molding device defining a molding chamber sealedly communicated with the smelting chamber; a charging barrel assembly, which is sealedly disposed at a joint between the molding device and the smelting device, and defines a part extended into the smelting chamber and located below the crucible to receive the molten raw material, and', 'an injection unit, which is sealedly connected with the smelting device, and defines an end extended through the smelting chamber into the charging barrel assembly so as to inject the molten raw material in the charging barrel assembly into the molding chamber; and, 'an injection device comprisinga vacuumizing device sealedly connected with the smelting device and the molding device respectively so as to vacuumize the smelting chamber and the molding chamber.2. The metal forming apparatus according to claim 1 , wherein a rear end of the smelting chamber ...

Furnace cooling system with thermally conductive joints between cooling elements

It is proposed herein to add supplementary cooling elements to a primary cooling element of a furnace. The supplementary cooling elements, with two or more components, may be inserted from the outside of the furnace into holes that pass through and the primary cooling element such that the cooling elements protrude beyond the inner surface of the primary cooling element. An inner one of the components of the supplementary cooling element may be received by an outer one of the components in a manner that forces the outer component into a thermally conductive pressure connection with the primary cooling element.

INDUCTION CRUCIBLE FURNACE WITH MAGNETIC-FLUX GUIDE

The invention relates to an induction crucible furnace and to a magnetic return element for an induction crucible furnace. The induction crucible furnace has a corresponding coil and a plurality of magnetic return elements, which are designed in the form of individual units arranged on the outer lateral surface of the coil with peripheral spacing. In order to guide the magnetic flux produced by the coil, the magnetic return elements each have an assembly consisting of a plurality of elongate individual elements of magnetically permeable material that are electrically insulated from each other and extend parallel to the furnace axis. Said individual elements consist at least partially of bars, which are electrically insulated from each other and the longitudinal axes of which extend parallel to the furnace axis. In this way, both eddy currents that hit the assembly from the radial direction and eddy currents that hit the assembly with a transverse component are minimized. 1. A crucible induction furnace comprising:a cylindrical refractory crucible centered on a furnace axis,a cylindrical coil extending around the crucible, anda plurality of magnetic-flux guides formed as individual units arranged on the outer surface of the coil in a angularly spaced condition and that each include an array of a plurality of elongate individual elements of magnetically permeable material that are electrically insulated with respect to one another and that extend parallel with respect to the furnace axis and that serve for the guidance of the magnetic flux generated by the coil, the individual elements consisting at least partly of rods electrically insulated with respect to one another and having longitudinal axes extending parallel with respect to the furnace axis, each array including at least two rods not only radially but also angularly of the coil.2. The crucible induction furnace according to claim 1 , wherein the at least two rods have a different cross-sectional shape.3. The ...

MELTING FURNACE FOR PRODUCING METAL

In production of a reactive metal using a melting furnace for producing metal having a hearth, ingots can be efficiently produced by efficiently cooling the ingots extracted from the mold provided in the melting furnace. In addition, an apparatus structure in which multiple ingots can be produced with high efficiency and high quality from one hearth, is provided. A melting furnace for producing metal is provided, the furnace has a hearth for having molten metal formed by melting raw material, a mold in which the molten metal is poured, an extracting jig which is provided below the mold for extracting ingot cooled and solidified downwardly, a cooling member for cooling the ingot extracted downwardly of the mold, and an outer case for keeping the hearth, the mold, the extracting jig, and the cooling member separated from the air, wherein at least one mold and extracting jig are provided in the outer case, and the cooling member is provided between the outer case and the ingot, or between the multiple ingots. 1. An electron beam melting furnace for producing metal , comprising:a hearth;a plurality of molds, each mold of the plurality of molds positioned to receive a molten material from the hearth;a plurality of extracting jigs, each extracting jig of the plurality positioned below a mold of the plurality of molds and capable of extracting downward an ingot received from the mold of the plurality of molds; andat least one cooling member positioned between at least two extracting jigs of the plurality of extraction jigs, the cooling member comprising:a first internal portion receiving a fluid of a first temperature;a second internal portion positioned below the first internal portion and receiving a fluid of a second temperature lower than that of the first temperature; anda dividing wall separating the first internal portion from the second internal portion.2. A melting furnace for producing metal , comprising:a hearth for holding molten metal formed by melting a raw ...

HIGH TEMPERATURE FURNACE INSULATION

A high temperature furnace comprising hot zone insulation having at least one shaped thermocouple assembly port to reduce temperature measurement variability is disclosed. The shaped thermocouple assembly port has an opening in the insulation facing the hot zone that is larger than the opening on the furnace shell side of the insulation. A method for producing a crystalline ingot in a high temperature furnace utilizing insulation having a shaped thermocouple assembly port is also disclosed. 1. A furnace comprising:a furnace shell;a hot zone within the furnace shell, the hot zone comprising at least one heating element in the hot zone;insulation surrounding the hot zone having a furnace shell side facing the furnace shell and a heating element side facing the heating element; andat least one thermocouple assembly inserted through at least one thermocouple assembly port in the insulation, wherein the thermocouple assembly port increases in size from the furnace shell side of the insulation to the heating element side of the insulation.2. The furnace of claim 1 , wherein the thermocouple assembly port comprises an opening on the heating element side of the insulation and an opening on the furnace shell side of the insulation claim 1 , and wherein the opening on the heating element side of the insulation is larger than the opening on the furnace shell side of the insulation.3. The furnace of claim 2 , wherein the thermocouple assembly port is countersunk on the heating element side of the insulation.4. The furnace of claim 3 , wherein the thermocouple assembly port is countersunk at an angle of at least 60°.5. The furnace of claim 3 , wherein the thermocouple assembly port is countersunk at an angle of at least 90°.6. The furnace of claim 3 , wherein the thermocouple assembly port is countersunk at an angle of about 60° to about 120°.7. The furnace of claim 3 , wherein the thermocouple assembly port is countersunk through at least one half of the insulation.8. The ...

METHOD AND ARRANGEMENT FOR ADJUSTING CHARACTERISTICS OF A FURNACE PROCESS IN A FURNACE SPACE AND INJECTION UNIT

Provided are a method and an arrangement for adjusting characteristics of a furnace process in a furnace space limited by a furnace shell of a metallurgical furnace. The arrangement comprises an injection unit having a frame mounted by means of a mounting means on the metallurgical furnace outside the furnace space of the furnace shell. Also provided is an injection unit for use in the method and in the arrangement. 116-. (canceled)17. A method for adjusting characteristics of a furnace process in a furnace space limited by a furnace shell of a metallurgical furnace comprising:a first providing step for providing a furnace aperture extending through the furnace shell,a second providing step for providing an injection unit comprising a frame , at least one linearly movable injection device that is configured to move linearly with respect to the frame and that is configured to inject additives, mounting means for mounting the injection unit on the metallurgical furnace outside the furnace space, first moving means for linearly moving said at least one linearly movable injection device with respect to the frame, and second moving means for moving said at least one linearly movable injection device between a first position and a second position with respect to the mounting means,a mounting step for mounting the injection unit by means of the mounting means on the metallurgical furnace outside the furnace space,a first moving step for moving the first moving means by means of the second moving means with respect to the mounting means from the first position into the second position, where the first moving means is able to move said at least one linearly movable injection device linearly through the furnace aperture in the furnace shell,a second moving step for moving said at least one linearly movable injection device by means of the first moving means in said second position linearly through the furnace aperture in the furnace shell at least partly into the furnace ...

PURIFICATION OF A METALLOID BY CONSUMABLE ELECTRODE VACUUM ARC REMELT PROCESS

A metalloid such as silicon in the form of a preheated solid electrode is purified by a CEVAR purification process by producing an ingot with controlled heating and cool down after the preheated electrode is melted in a CEVAR furnace system using a short CEVAR open-bottomed crucible. 1. A CEVAR furnace system for producing a purified silicon ingot from a silicon electrode , the CEVAR furnace system comprising:a silicon electrode heating apparatus for preheating the silicon electrode to form a preheated silicon electrode;a gas-tight CEVAR furnace chamber;a short CEVAR open-bottomed crucible for containment of an arc zone from a CEVAR purification process melting the preheated silicon electrode, the short CEVAR open-bottomed crucible disposed in the gas-tight CEVAR furnace chamber;a preheated silicon electrode drive system for lowering the preheated silicon electrode within the short CEVAR open-bottomed crucible as a lower end of the preheated silicon electrode melts in the CEVAR purification process;an ingot heating apparatus disposed adjacent to the open bottom of the short CEVAR open-bottomed crucible through which the purified silicon ingot formed in the CEVAR purification process passes;an ingot heating controller for controlling the ingot heating apparatus to provide a temperature-controlled thermal environment for the purified silicon ingot passing through the ingot heating apparatus; andan ingot withdrawal drive system for alternatively withdrawing the purified silicon ingot from the short CEVAR open-bottomed crucible at a vertical growth rate of the purified silicon ingot during steady state of the CEVAR purification process or raising the short CEVAR open-bottomed crucible, the silicon electrode and the ingot heating apparatus at the vertical growth rate of the purified silicon ingot during steady state of the CEVAR purification process.2. The CEVAR furnace system of wherein an interior height of the short CEVAR opened-bottom crucible is at least 60 percent ...

DC ARC FURNACE FOR WASTE MELTING AND GASIFICATION

An apparatus for the gasification and vitrification of waste comprises a plasma arc furnace provided with two movable graphite electrodes. The furnace includes an air-cooled bottom electrode adapted for transferring the current through a slag melt. The furnace is entirely sealed and is also provided with gas tight electrode seals adapted to control reducing conditions inside the furnace. An electrical circuit is further provided, which is adapted for switching from transferred io non-transferred modes of heating, thereby allowing the furnace to be restarted in case of slag freezing. 1. A furnace for the gasification of waste which is entirely closed and sealed to control the gasification environment.2. A furnace that is entirely air cooled , so as to avoid any risk of water leaks and steam explosions resulting from water cooling circuit failures.3. An electrical circuit which allows the furnace to be operated in both non-transferred and transferred arc mode of operation and allowing to switch between non-transferred and transferred mode.4. An operating method to restart the arc in case of process upsets.5. A plasma arc furnace , comprising a spool and a crucible , a pair of movable electrodes , e.g. made of graphite , an air-cooled bottom electrode adapted for transferring current all through a slag melt , the furnace being sealed at a junction of the spool and the crucible thereof , and being further provided with gas tight electrode seals adapted to control reducing conditions inside the furnace.6. The plasma arc furnace of claim 5 , wherein an electrical circuit is provided claim 5 , the electrical circuit being adapted for switching from transferred to non-transferred mode of heating claim 5 , thereby allowing for the restarting of the furnace in case of slag freezing.7. A DC arc furnace claim 5 , comprising a spool and a crucible claim 5 , a pair of movable electrodes claim 5 , e.g. made of graphite claim 5 , an air-cooled bottom electrode adapted for ...

HIGH-TEMPERATURE ALL-METAL INDUCTION FURNACE, INTENDED TO MELT SAMPLES OF MINERALS AND/OR ROCKS FOR EXTRACTING GASES UNDER ULTRA-HIGH VACUUM

The application basically comprises supplying a high-temperature ultra-high vacuum furnace, the sole chamber of which is metal, in which an electrically conductive crucible, preferably made of tantalum, is placed onto an insulating support, preferably a ceramic, and is induction heated by a winding wound around the crucible. The insulating tube, preferably made of quartz, that is arranged between the induction winding and the crucible, advantageously acts as a surface on which the condensable species can condense. The quartz insulating tube especially allows the induction winding to be protected. 1. A high-temperature ultrahigh-vacuum furnace , intended for the extraction of noble gases present in samples of minerals and/or rocks , comprising:a metal chamber that is gastight, in particular to atmospheric gases, comprising a connection opening for connecting to a purification line for purifying the gases released in the chamber and/or to a gravity feed device for supplying a sample and, a connection opening for connecting to a pump suitable for creating the ultrahigh vacuum inside the chamber,a crucible made of electrically conductive material, suitable for containing at least one sample of minerals and/or rocks,a support made of electrically insulating material, resting on the lower portion of the metal chamber, and supporting the crucible in the chamber,at least one induction coil, powered from outside of the chamber through at least one insulated bushing passing through a wall of the chamber, and arranged around the crucible,a tube made of electrically insulating material, resting on the lower portion of the metal chamber, arranged between the induction coil and the crucible supported by the support.2. The high-temperature ultrahigh-vacuum furnace as claimed in claim 1 , comprising a heat-transfer fluid cooling circuit integrated into the claim 1 , lower and upper walls of the chamber.3. The high-temperature ultrahigh-vacuum furnace as claimed in claim 1 , wherein ...

System for salt removal from uranium metal

According to one aspect of the invention, a system to separate salt from uranium. The system has a vessel, a heater, a pump, and a condenser. The vessel is adapted to receive a uranium that has a salt concentration. The heater heats the uranium for a period of time, causing the salt to turn into a salt vapor and the uranium to melt. The melted uranium releases the salt vapor. The pump circulates an inert gas that carries the salt vapor away from the melted uranium. The condenser is adapted to receive the salt vapor.

Pot Furnace for Calcining Petroleum Coke at Low Temperature

A pot furnace for calcining petroleum coke at low temperature may include a pot, and a cooling water jacket and a flame path below the pot. The flame path may include eight layers. An inlet of a first flame path layer may be in communication with a volatile channel in the front wall, and is provided with a first flame path layer flashboard. An eighth flame path layer may be in communication with a communication flue. Flue gas may be discharged out of the furnace body through a main flue. A furnace bottom cooling channel may be provided below the eighth flame path layer.

Vertical batch furnace assembly comprising a cooling gas supply

A vertical batch furnace assembly, comprising a core tube, an outer casing, a cooling chamber bounded and enclosed by the outer casing and the core tube, and at least one cooling gas supply emanating in the cooling chamber. The core tube has an elongated circumferential wall extending in a longitudinal direction, and is configured to accommodate wafers for processing in the vertical batch furnace. The outer casing extends around the core tube and comprises a heating element for applying a thermal treatment to wafers accommodated in the core tube. The at least one cooling gas supply comprises at least one cooling gas supply opening which is arranged such that the cooling gas enters the cooling chamber with a flow direction which is substantially tangent to the circumferential wall.

CHAOTIC STIRRING DEVICE AND METHOD COMBINING PLASMA ARC SMELTING AND PERMANENT MAGNET

A chaotic stirring device combining plasma arc smelting and permanent magnet including a furnace body; the furnace body is provided therein with a water-cooled copper crucible; the center of an upper surface of the water-cooled copper crucible is a groove for placing raw metals, and the water-cooled copper crucible is internally a hollow cavity; a return pipe is disposed directly below the groove in the hollow cavity; an upper end of the return pipe is vertical upward, and is horizontally provided with a filter screen; a spherical magnet is placed between the filter screen and the groove; one side of the water-cooled copper crucible is provided with a first water inlet pipe and a first water outlet pipe; the first water inlet pipe is connected to the hollow cavity, and the first water outlet pipe is connected to the bottom of the return pipe. 1. A chaotic stirring device combining plasma arc smelting and permanent magnet , wherein the device comprises a furnace body; the furnace body is provided therein with a water-cooled copper crucible; the center of an upper surface of the water-cooled copper crucible is a groove for placing raw metals;the water-cooled copper crucible is internally a hollow cavity; a return pipe is disposed at a place directly below the groove in the hollow cavity; an upper end of the return pipe is vertical upward, and is horizontally provided with a filter screen; a spherical magnet is placed between the filter screen and the groove; one side of the water-cooled copper crucible is provided with a first water inlet pipe and a first water outlet pipe;the first water inlet pipe is connected to the hollow cavity, and the first water outlet pipe is connected to the bottom of the return pipe, to form a water flow passage in the water-cooled copper crucible.2. The chaotic stirring device combining plasma arc smelting and permanent magnet according to claim 1 , wherein a tungsten electrode and a nozzle are disposed directly above the groove claim 1 , ...

MELTING AND CASTING PROCESS AND COMBINED MELTING AND CASTING FURNACE PLANT

A process for melting metal parts and casting the melt in at least one mould and a corresponding combined melting and casting furnace plant are described. In the process, metal parts to be melted are brought into a crucible furnace, and a molten metal is produced therein and made ready for casting. A riser tube integrated in a lid of the crucible furnace is heated in a position remote from the crucible furnace, and the lid with heated riser tube is brought into a position closing the crucible furnace, in which the riser tube projects into the molten metal. A mould is arranged on the lid in a casting position above the riser tube, and the molten metal is introduced into the mould from below by pressurising the melt in the crucible furnace. The combined melting and casting furnace plant is designed to carry out such a process. 1. A process for melting metal parts and casting the melt into at least one mould , comprising the following steps:a. placing the metal parts in a crucible furnace;b. producing a molten metal and making it ready for casting in the crucible furnace;c. heating a riser tube arranged on a lid of the crucible furnace at a position remote from the crucible furnace;d. moving the lid with the heated riser tube to a position closing the crucible furnace, in which position the riser tube projects into the molten metal;e. moving the mould to a casting position on the lid and above the riser tube; andf. pouring the molten metal through the riser tube from below into the mould by pressurising the molten metal in the crucible furnace.2. The process according to claim 1 , wherein claim 1 , during the pouring of the molten metal through the riser tube claim 1 , negative pressure is applied in the casting mould.3. The process according to claim 1 , wherein the step of flooding the space between the melt bath surface and the furnace lid with inert gas claim 1 , wherein preferably the pouring of the molten metal through the riser tube from below into the mould ...

HEATING DEVICE WITH HEAT CONDUCTING ELEMENT AND EVAPORATION SYSTEM USING SAME

A heating device with a heat conducting element and an evaporation system using the same are provided. The heating device includes a crucible, a heat conducting element and a heating element. The crucible includes a bottom surface, an opening opposite to the bottom surface and an accommodation space for accommodating a to-be-evaporated material. The heat conducting element is disposed in the accommodation space of the crucible and disposed on the bottom surface and extending towards the opening. The heating element is disposed adjacent to the crucible. 1. A heating device , used in an evaporation system , comprising: a bottom surface;', 'an opening opposite to the bottom surface; and', 'an accommodation space for accommodating a to-be-evaporated material;, 'a crucible, comprisinga heat conducting element disposed in the accommodation space of the crucible, and disposed on the bottom surface and extending towards the opening; anda heating element disposed adjacent to the crucible.2. The heating device according to claim 1 , wherein the heat conducting element comprises metal material or alloy material.3. The heating device according to claim 1 , wherein the to-be-evaporated material comprises methylammonium iodide (MAI) claim 1 , formamidinium iodide (FAI) or phenethylammonium iodide (PEAI).4. The heating device according to claim 1 , wherein the crucible comprises a sidewall surrounding the heat conducting element claim 1 , and at least one interval exists between the heat conducting element and the sidewall of the crucible.5. The heating device according to claim 4 , wherein the heat conducting element is disposed at a center of the crucible claim 4 , and the intervals between each part of the heat conducting element and the sidewall of the crucible are equal.6. The heating device according to claim 1 , wherein a height of the heat conducting element is less than or equal to a height of the crucible.7. The heating device according to claim 6 , wherein the heating ...

METAL SECTOR FOR BOTTOM OF GLASS MELTING FURNACE, AND GLASS MELTING FURNACE

A plurality of metal sectors separately arranged so as to form a bottom of a glass melting furnace. The metal sectors include an upper surface made from a bottom surface of the glass melting furnace, a lower surface opposite to the upper surface, and a plurality of lateral surfaces coming in contact with the upper surface and the lower surface. An electrical arc suppression structure is provided at a part or an entire part of a corner in which the upper surface or the lower surface comes in contact with each lateral surface. The electrical arc suppression structure is a rounded corner or an insulation coating layer. The electrical arc suppression structure enables stable operation of the glass melting furnace. 1. A metal sector for a bottom of a glass melting furnace , the metal sector comprising:a top surface forming a bottom surface of the glass melting furnace;a bottom surface facing the top surface; anda plurality of side surfaces adjoining the top surface and the bottom surface,wherein at least one corner portion of corner portions where the top surface or the bottom surface adjoins the plurality of side surfaces has an electrical arc suppression structure,wherein a plurality of the metal sectors separated from each other forms the bottom of the glass melting furnace.2. The metal sector according to claim 1 , wherein the electrical arc suppression structure comprises a rounded corner.3. The metal sector according to claim 1 , wherein the electrical arc suppression structure comprises an insulation coating layer.4. The metal sector according to claim 3 , wherein the insulation coating layer is formed by plasma coating.5. The metal sector according to claim 3 , wherein the insulation coating layer is formed on a rounded corner.6. The metal sector according to claim 1 , wherein the glass melting furnace comprises an outlet in the bottom through which melt is discharged claim 1 , and the plurality of metal sectors is arranged in a circular direction around the ...

DEVICE AND METHOD FOR TREATING METALLIC MATERIALS

A device and a method for treating metallic material. In particular, the invention is suitable for treating and/or producing steel and metallic alloys, in particular non-standard grade steels and alloys of particularly high quality. The invention has proved to be particularly successful in the treatment of iron-based metallic materials. 1. A device for treating metallic material , comprising:a mobile melting vessel and at least one treatment station, whereinthe mobile melting vessel comprises a crucible, a heating induction facility with a coil and a housing,the treatment station comprises a cover which is suitable for gas-tightly closing the crucible, andthe mobile melting vessel can be separated from the treatment station and can be moved in a ridable manner independently from the treatment station, whereinthe device comprises a quick-coupling system so that supply lines of the treatment station can be connected to the mobile melting vessel for cooling the heating induction facility and/or for supplying it with electricity,a transport facility is provided which is suitable for moving the melting vessel out of the area of the treatment station, andmeans at or in the transport facility and/or the mobile melting vessel are provided for cooling the heating induction facility during the movement of the melting vessel and/or for supplying it with electricity.2. The device according to claim 1 , wherein the transport facility and/or the melting vessel comprise a cooling unit and/or a power generator for cooling the coil during the transport and/or for supplying it with electricity.3. The device according to claim 1 , wherein the transport facility is a towing vehicle.4. The device according to claim 1 , wherein the heating induction facility claim 1 , at least after coupling to the treatment station claim 1 , is suitable for maintaining metallic material which is located in the crucible in a molten state and/or melting it.5. The device according to claim 1 , wherein the ...

COOLING SYSTEM FOR A SURFACE OF A METALLURGICAL FURNACE

A cooling system to cool a surface of a tilting metallurgical furnace including an inner plate of the surface, a plurality of nozzles, and a drain manifold is disclosed. The inner plate has an external surface and an internal surface. The plurality of nozzles is configured to be fluidly connected to a coolant supply pipe. At least a first nozzle of the plurality of spray conduits is configured to spray coolant against the external surface of the inner plate. The drain manifold positioned to receive coolant from the external surface of the inner plate. At least a second nozzle of the plurality of nozzles is configured to spray coolant directly into the drain manifold. 1. A cooling system for regulating temperature of a surface of a metallurgical furnace , the cooling system comprising:an inner plate having an external surface and an internal surface and spacing an internal wall from an external wall of the surface of the furnace to be cooled;a plurality of nozzles fluidly connected to a coolant supply pipe to, at least a first nozzle of the plurality of nozzles having an orientation to spray coolant against the external surface of the inner plate;a drain manifold positioned to receive sprayed coolant from the external surface of the inner plate; andat least a second nozzle of the plurality of nozzles having an orientation configured to spray coolant directly into the drain manifold.2. The cooling system of further comprising:an outer plate spaced from the inner plate, wherein the outer plate and the inner plate at least partially define a substantially enclosed space, the plurality of nozzles are located within the substantially enclosed space.3. The cooling system of wherein the drain manifold is located within the substantially enclosed space.4. The cooling system of wherein the drain manifold is located external to the substantially enclosed space.5. The cooling system of claim 1 , wherein the inner plate is part of a furnace roof.6. The cooling system of claim 1 ...

Casting method for active metal

A casting method of an active metal includes, in an induction melting furnace using a water-cooled crucible, tapping a molten metal into a mold from a tapping hole provided at a bottom of the water-cooled copper crucible to cast an ingot of the active metal. In conducting the casting under a casting condition in which the ingot has a diameter (D) of 10 mm or more and a ratio (H/D) of an ingot height H to the ingot diameter D of 1.5 or more and a weight of the molten metal tapped in the casting is 200 kg or less, a temperature of the molten metal in the casting is set to be higher than the melting point of the active metal and a casting velocity V (mm/sec) is controlled to satisfy V≤0.1H in relation with the ingot height H by adjusting an opening diameter of the tapping hole.

MELTING DEVICE AND MELTING METHOD

The present invention relates to a melting device comprising a loading shaft () and a tilting device () by means of which a furnace vessel () with a furnace vessel cover () can be tilted into different tilt positions around a tilt axis (), wherein the furnace vessel sealing region is formed as a convex, cylindrical mantel section shaped, surface, and the shaft sealing region of the loading shaft () is formed as a complementary concave, cylindrical mantel section shaped, sealing surface, such that sections of the sealing surfaces of the two sealing regions lie mutually opposite one another in the different tilt positions of the tilting device () such that the transition region between the loading shaft () and the furnace vessel () is at least substantially sealed in all tilt positions of the furnace vessel (), and to a melting method, in which a bunker container () with charging material () is placed in front of the loading shaft () on the loading side, wherein over the further course of this method, the charging material () is preheated in the bunker container () by furnace gas, and after further transport of this charging material () from the bunker container () into the loading shaft (), this charging material () is further preheated in the loading shaft () by furnace gas. 118-. (canceled)19. A melting device having a feed shaft and a tilting device , by means of which a furnace vessel with a furnace vessel cover is tiltable about a tilt axis into different tilt positions , where the furnace vessel cover has a charging opening , to which a flat sealing element is connected on each of two sides , such that the outside boundary of said sealing elements and the outside boundary of the charging opening define a furnace vessel sealing region with a sealing surface which surrounds the charging opening , said furnace vessel sealing region is realized as a convex , cylinder-surface-portion-shaped surface , a further sealing element is also connected on each of two sides ...

Methods for producing improved steels by injecting iron containing by-products of an iron ore production process into liquid steel

Disclosed herein are methods and compositions for producing improved steels comprising injecting iron containing by-products of an iron ore production process into a liquid steel, wherein the iron containing by-products of an iron ore production process further comprise direct reduced iron (DRI) fines. The resulting improved steel exhibits lower nitrogen content than one measured for a substantially identical reference composition produced in the absence of the direct reduced iron fines.

TECHNIQUES AND APPARATUS FOR ELECTROMAGNETICALLY STIRRING A MELT MATERIAL

Techniques and apparatus for electromagnetically stirring a melt material are disclosed. In accordance with some embodiments, the system may include a containment vessel within which a melt material may be disposed. The melt material may include, for example, an electrically conductive alloy, which optionally may be non-ferromagnetic and/or glass-forming. In its molten state, the melt material may have alternating current (AC) applied directly thereto while being immersed in a magnetic field, which may be static or dynamic, depending on the desired stirring effect. Application of the AC and magnetic field may continue as the melt material cools and solidifies, the sinusoidal nature of the AC and the Lorentz force of the magnetic field providing convective motion which tends to agitate the molten melt material in a manner which may realize an improvement in heat transfer and chemical homogeneity of the resultant cast solid. 1. A melt material processing system comprising:a containment vessel configured to contain a melt material comprising an electrically conductive alloy; be in direct physical contact with the melt material within the containment vessel; and', 'apply an alternating current (AC) directly to the melt material; and, 'at least one electrode configured toa magnetic field source configured to apply a magnetic field to the melt material within the containment vessel.2. The system of claim 1 , wherein the containment vessel includes at least one exterior channel configured to pass a coolant therethrough.3. The system of claim 1 , further comprising at least one electrically insulating layer disposed within the containment vessel claim 1 , over at least a portion of an interior surface of the containment vessel claim 1 , such that the at least one electrically insulating layer intervenes between the melt material and the interior surface of the containment vessel.4. The system of claim 3 , wherein the at least one electrically insulating layer is a coating ...

METHOD FOR MAKING STEEL IN AN ELECTRIC ARC FURNACE AND ELECTRIC ARC FURNACE

The inventions relate to the field of metallurgy, and specifically to a method for producing steel and to a design for an electric arc furnace for implementing same. The method involves loading a charge into a workspace of a furnace, said charge consisting of scrap metal and of agglomerated oxy-carbon materials, inputting electric energy, fuel, a carburizer, a flux and gaseous oxygen, heating and melting the charge using electric arcs with the decarburization of a metal bath, and releasing metal and slag from the furnace. Prior to melting, a portion of the oxy-carbon materials is loaded, simultaneously with a first portion of metal charge, into the central zone of the furnace, and the remaining oxy-carbon materials are introduced into the melted charge during the melting process at a specific loading speed of 0.5-10 kg/min per 1 megavolt-ampere of power of the transformer of the electric arc furnace, and the size of the pieces of oxy-carbon materials is selected to be between 5 and 80 millimeters. The walls of the furnace housing are provided with at least three apertures, which are spaced along the perimeter thereof, for loading oxy-carbon materials into the central zone of the furnace, which apertures are provided 0.2-1.0 meters below the level of an upper mark on the furnace housing. The invention makes it possible to reduce specific electricity consumption when melting metal charge, increase the output of iron from oxy-carbon materials, and also increase the relative quantity of said materials in the overall mass of charge. 1. Steel-melting method in EAF , including loading the charge in the furnace's workspace , consisting of scrap metal and OCM chunks , supply of fuel , carburizer , flux and gaseous oxygen , supply of electricity , heating and melting of the charge , using electric arcs with decarburization of metal bath , and releasing metal and slag from the furnace , DIFFERING from other methods that prior to the beginning of the melting process in the ...

INDUCTION FURNACE AND METHOD FOR TREATING METAL WASTE TO BE STORED

The melting induction furnace comprises, together with a casing () to which a lower sole plate () is added to form the central part of the structure, a removable inner crucible () composed of an internal layer () resisting heat and aggressiveness of the molten bath (), an external layer () delimiting the crucible and an insulating intermediate layer (). The crucible () is a disposable crucible and can be stored with its charge in an appropriate container. Heat losses are low, even when the casing () is cooled. Stresses due to differential thermal expansions are also very much reduced. 11078211117. Induction furnace for melting metallic waste , with low energy consumption and high safety level , comprising a field coil () , a circular metallic casing () broken down into sectors () separated by electrically insulating layers , surrounded by the field coil and provided with cooling fluid ducts () , and a sole plate () extending under the casing , characterised in that it comprises a crucible () inside the casing () and composed of a circular wall and a bottom , the crucible being:{'b': '11', 'placed on the sole plate (),'}{'b': '7', 'surrounded by the casing (),'}separated from the casing by a clearance,continuous and uniform around its circumference and{'b': 4', '5', '6, 'composed of three concentric layers including an internal refractory layer (), an intermediate layer () composed of compressible material and an external metallic layer ().'}2. Melting furnace according to claim 1 , characterised in that the internal layer is made from ceramic claim 1 , for example based on silicon carbide.3. Melting furnace according to claim 1 , characterised in that the intermediate layer is made from a thermally insulating material.4. Melting furnace according to claim 1 , characterised in that the intermediate layer has a fibrous structure.58. Melting furnace according to claim 1 , characterised in that sectors () have an equivalent diameter (D) less than half the penetration ...

MELTING DEVICE FOR CONSOLIDATING CONTAMINATED SCRAP

A mobile melting device for consolidating contaminated scrap and to a corresponding method. The melting device has a crucible chamber and a crucible base. The crucible is arranged on the crucible base during operation, and the crucible base and the crucible chamber together form a gas-tight furnace housing. It is thus possible to carry out the method in a vacuum or under protective gas such that even a reactive material can be consolidated. The melting device can be assembled and disassembled with little effort. 1. A mobile melting device including a crucible base and a crucible chamber adapted to receive a crucible; comprising: the crucible base comprises a chamber bottom and the crucible chamber comprises a shell ,wherein the device further comprises a transport means which is adapted to move the crucible base together with the crucible from a first position to a second position, wherein the crucible in said first position is disposed outside the crucible chamber and in the second position is disposed within the crucible chamber,{'b': '10', 'wherein the chamber bottom and the shell are configured such that they form a gas-tight furnace enclosure () in the second position,'}wherein the transport means with the crucible base and the crucible arranged thereon is movable such that crucible can be removed from the area below the crucible chamber and another crucible can be introduced into the crucible chamber,and wherein the melting device comprises a charging device which is arranged above the crucible chamber.2. The melting device according to wherein the charging device is gas-tight.3. The melting device according to claim 1 , wherein the crucible chamber comprises a heater that enables to heat the crucible.4. The melting device according to claim 1 , comprising a collecting pan which is arranged below the crucible in the crucible base.5. The melting device according to claim 1 , wherein the melting device is configured modular.6. A method for consolidating a ...

FURNACE FOR CASTING NEAR-NET SHAPE (NNS) SILICON

A furnace includes a pedestal, a crucible, first and second heaters, and a controller. The crucible is arranged on a pedestal that is movable downwardly and is rotatable. The first and second heaters are spaced vertically along an outer wall of the crucible and are arranged around the crucible to heat pieces of solid material deposited in the crucible. A third heater is arranged above the crucible if the crucible includes a solid cylindrical mold or in a hollow cylindrical space of the crucible if the crucible includes a hollow cylindrical mold. The controller is configured to control the first and second heaters to heat the pieces of the solid material to form a melted liquid. The controller is configured to control the rotational and downward movements of the pedestal relative to the first and second heaters during solidification of the melted liquid to form an ingot. 1. A furnace comprising:a hollow mold formed between an inner cylindrical wall and an outer cylindrical wall;a first heater arranged in a hollow cylindrical space extending along an inner wall of the inner cylindrical wall to heat pieces of a solid material deposited in the hollow mold;second and third heaters spaced vertically along an outer wall of the outer cylindrical wall and arranged around the outer cylindrical wall to heat the pieces of the solid material deposited in the hollow mold;a pedestal, with the hollow mold arranged on the pedestal, configured to rotate at a first speed and to move downward at a second speed relative to the first, second, and third heaters; and control the first, second, and third heaters to heat the pieces of the solid material to form a melted liquid; and', 'control the first and second speeds of the pedestal during solidification of the melted liquid to form an ingot from the melted liquid., 'a controller configured to2. The furnace of further comprising an insulation comprising:a circumference wall surrounding the outer cylindrical wall of the hollow mold;a top ...

OVEN FOR THE MELTING OF PRECIOUS METALS IN THE JEWELLERY SECTOR

Described is an oven () for melting precious and non-precious metals, non-metallic materials such as ashes, organic industrial waste, inorganic material such as ceramics, which are heat-resistant and not, in particular in the jewellery sector, comprising an outer unit () forming an inner space () and having an inductive thermal unit () positioned around the inner space (); an inner unit () positioned in the inner space () and having a melting chamber () for a metal to be melted and operating in conjunction with the inductive thermal unit () in such a way that a heating of the inner unit () by the inductive thermal unit () causes the melting of the metal in the melting pot (). In particular, the melting chamber () has an opening () for loading and unloading the metal. The inner unit () is rotatably mounted in a motor-driven fashion on the outer unit () about an axis of rotation (Z) suitable for mixing the metal contained in the melting chamber (). Moreover, the outer unit () has rotatable supporting means () defining a tilting axis (Y) perpendicular to the axis of rotation (Z) and suitable for unloading liquid metal from the melting chamber (). 2274478. The oven according to claim 1 , wherein said outer unit () has rotation means () acting on the inner unit () for rotating the inner unit () about said axis of rotation (Z) claim 1 , preferably said rotation means () comprising an electric motor ().3412511123128. The oven according to claim 1 , wherein said inner unit () comprises a melting pot () delimiting said melting chamber () and said loading/unloading opening () claim 1 , said melting pot () being made at least partly of a material suitable for induction heating by said inductive thermal unit (); said melting pot () being rotatably integral with a rotation shaft () rotatable about said axis of rotation (Z).4416123. The oven according to claim 3 , wherein said inner unit () also comprises an outer containment body () made of a thermally insulating material claim ...

Arrangement for Low-Pressure Casting of Refractory Metals

The present invention relates to an arrangement for low-pressure casting of refractory metals, with a furnace chamber with one or a plurality of gas supply openings (6) and gas outlet openings (7), and a riser pipe (8) through a cover (5) of the furnace chamber, a melting container (3, 12) for the refractory metals arranged in the furnace chamber, and a heating device for heating the refractory metals in the melting container (3, 12). In the proposed arrangement, the melting container (3, 12) is formed as an exchangeable insert for a receiving mould (2) supporting the melting container (3, 12), which is arranged in the furnace chamber, wherein a thermally insulating layer (4, 17) is formed between the receiving mould (2) and the melting container (3, 12), or is integrated into the melting container (3, 12). With the proposed arrangement, a quick and easy exchange of the melting container for different alloys can also be carried out in the low-pressure casting of refractory metals.

Melting furnace purge system and method

A furnace has a melting chamber with a periphery defined by a surrounding wall structure. The furnace is provided with a purge system configured to direct inert gas to flow downward in the melting chamber in the configuration of a curtain that adjoins the wall structure and reaches only partially around the periphery of the melting chamber.

Method for steel making in electric-arc furnace and electric-arc furnace

FIELD: metallurgy. SUBSTANCE: as per the proposed method, loading of charge consisting of metal scrap and lumped oxide-carbon material is performed to a working space, electric power, fuel, a recarburising agent, flux and gaseous oxygen is supplied; heating and melting of charge is performed with electric arcs with decarburisation of a metal bath, and furnace metal and slag tapping is performed. Before the beginning of the melting process, to the central zone of the furnace, which is adjacent to the combustion zone of electric arcs and restricted with the size of not more than D=(d p +3.5 d el ), where d p - pitch circle diameter, d el - electrode diameter, there loaded simultaneously with the first portion of metal charge is some part of oxide-carbon materials in the amount of 10-90% of their total consumption per melting, and the rest quantity of oxide-carbon materials is added to the molten charge in the melting direction at specific loading rate of 0.5-10 kg/min per 1 MVA of power of the transformer of the electric-arc furnace. Size of lumps of oxide-carbon materials is chosen in the range of 5-80 mm. In the furnace housing walls there are at least three inlet holes of oxide-carbon materials to the central zone of the furnace, which are spaced as to their perimeter and located below the level of the upper elevation of the furnace housing by 0.2-1.0 m. EFFECT: invention allows reducing specific consumption of electric power for melting of metal charge and increasing iron yield out of oxide-carbon materials, as well as increasing their relative quantity in total mass of the charge. 6 cl, 2 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 539 890 C1 (51) МПК C21C 5/52 (2006.01) F27B 3/08 (2006.01) F27B 3/18 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2013158488/02, 30.12.2013 (24) Дата начала отсчета срока действия патента: 30.12.2013 (45) Опубликовано: 27.01.2015 Бюл. № 3 (56) Список документов, ...

Method and apparatus for melting material

Melting furnace with crucible movement

The present invention relates to a melting furnace capable of moving a crucible. More specifically, a crucible storing a solid substance is easily moved to the outside and the inside of the melting furnace to enable the crucible of high temperature to be easily transported. The melting furnace comprises a crucible furnace, a moving rail, a horizontal movement unit, a vertical movement unit, and a melting unit.

Method and device for copper slag collection

FIELD: metallurgy. SUBSTANCE: method comprises mixing of copper melted slag in a cleaning device, a reducing agent and a compressed inert gas to obtain a copper-free slag. Copper melted slag containing copper in oxidized state in amount of 10 to 20% by weight is used, the inert gas is fed to the cleaning device at 100 to 800 kPa pressure. EFFECT: boilling of slag and intensified mixing. 9 cl, 1 dwg, 2 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 633 428 C2 (51) МПК C22B 7/04 (2006.01) C22B 15/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2015121634, 21.05.2014 (24) Дата начала отсчета срока действия патента: 21.05.2014 Дата регистрации: (72) Автор(ы): ЧЖОУ, Сунлинь (CN), ЛЮ, Вэйдун (CN), ВАН, Ху (CN) Приоритет(ы): (30) Конвенционный приоритет: (56) Список документов, цитированных в отчете о поиске: CN 101705360 A, 12.05.2010. SU 23.07.2013 CN 201310311055.X 1573963 A1, 20.11.1995. RU 2476611 C2, 27.02.2013. SU 1132550 A1, 27.09.1996. (45) Опубликовано: 12.10.2017 Бюл. № 29 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 24.02.2016 (86) Заявка PCT: CN 2014/077950 (21.05.2014) (87) Публикация заявки PCT: 2 6 3 3 4 2 8 (43) Дата публикации заявки: 29.08.2017 Бюл. № 25 R U (73) Патентообладатель(и): СЯН ГУАН КОППЕР КО., ЛТД. (CN) 12.10.2017 (54) СПОСОБ И УСТРОЙСТВО ДЛЯ ОБЕДНЕНИЯ МЕДЕПЛАВИЛЬНОГО ШЛАКА (57) Реферат: Изобретение относится к очистке от меди шлак, содержащий медь в окисленном состоянии медеплавильного расплавленного шлака. Способ в количестве от 10 до 20 мас.%, при этом включает смешивание в очищающем устройстве инертный газ подают в очищающее устройство медеплавильного расплавленного шлака, под давлением от 100 до 800 кПа. Обеспечивается восстановителя и сжатого инертного газа с кипение шлака и интенсификация перемешивания. получением очищенного от меди шлака. 8 з.п. ф-лы, 1 ил., 2 пр. Используют медеплавильный расплавленный R U 2 6 3 3 4 2 8 Адрес для переписки: 129090, ...

Arc furnace

Изобретение относится к области металлургии и касается дуговой печи, имеющей металлоприемник печи для плавления стали, свод для закрытия металлоприемника печи и устройство поворота, выполненное с возможностью отведения свода от металлоприемника печи, который установлен подвижно с возможностью движения в вертикальном направлении относительно устройства поворота, которое имеет замок, выполненный с возможностью разъемной фиксации свода. При этом свод выполнен с возможностью фиксации в вертикальном направлении замком устройства поворота и отделения от металлоприемника печи при движении в вертикальном направлении. Изобретение позволяет обойтись без шарнирного цилиндра благодаря подвижной в вертикальном направлении установке металлоприемника печи вместе со сводом, что дает экономию необходимых конструктивных элементов и трудоемкой механической обработки механизма подъема свода. Кроме того, свод и устройство поворота не опрокидываются вместе с металлоприемником печи, так что возможен выпуск при одновременной подаче энергии к печи или электродам, что позволяет увеличить производительность печи. 7 з.п. ф-лы, 3 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 636 793 C2 (51) МПК F27B 3/16 (2006.01) F27D 1/18 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2015104340, 12.06.2013 (24) Дата начала отсчета срока действия патента: 12.06.2013 (72) Автор(ы): МОССМАНН, Бьерн (DE) (73) Патентообладатель(и): ПРАЙМЕТАЛЗ ТЕКНОЛОДЖИЗ АУСТРИА ГМБХ (AT) Дата регистрации: (56) Список документов, цитированных в отчете о поиске: EP 203339 A2, 03.12.1986. DE Приоритет(ы): (30) Конвенционный приоритет: R U 28.11.2017 1067984 B, 29.10.1959. SU 1838737 A1, 30.08.1993. 11.07.2012 EP 12175917.9 2 6 3 6 7 9 3 (43) Дата публикации заявки: 27.08.2016 Бюл. № 24 (45) Опубликовано: 28.11.2017 Бюл. № 34 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 11.02.2015 (86) Заявка PCT: EP 2013/062089 (12.06.2013) (87) Публикация заявки ...

Smelting furance and aluminum smelting method

本发明公开了一种熔炼炉，其包括用于对铝原料进行预热的预热室，用于使预热的铝原料熔化的熔化室，还包括燃烧机，燃烧机是以生物质颗粒为燃料的燃烧机，且燃烧机产生的烟气依次通过熔化室和预热室。该熔炼炉中，燃烧机以生物质颗粒为燃料，使整个熔炼炉能够利用生物质颗粒燃烧的热量对铝材进行熔炼，避免使用燃气，利于降低生产成本。本发明还公开了一种铝熔炼方法，其应用于上述熔炼炉，能够降低铝熔炼的生产成本。

Boiler using crucible furnace

본 고안의 목적은, 물이 분해되어 재결합할 때에 발생되는 가스(브라운가스)의 불꽃이 어느 물질에 접촉되는 순간에 접촉 물질의 용융점 온도에 이르는 특징을 이용하여 용융로 자체를 보일러로 하여 용융로의 용융 직,간접열에 노통, 연관,수관을 가열하는 특징과, 온수와 스팀의 발생원을 별개로하여 각기 동시에 사용할 때 서로의 온도와 압력에 영향을 주지 않는 특징을 갖는 브라운 가스 용융보일러에 관한 것이다. The object of the present invention is to melt the furnace using the furnace itself as a boiler, using the feature that the flame of the gas (brown gas) generated when water is decomposed and recombined reaches a melting point temperature of the contacting substance at the moment when it comes into contact with a substance. The present invention relates to a brown gas melting boiler having a characteristic of heating a furnace, plumbing, and a water pipe in direct and indirect heat, and of separately generating a source of hot water and steam and not affecting each other's temperature and pressure. 이에 본 고안은 상기 보일러 내부에 설치되어 용융물질이 담겨지는 도가니로와, 도가니로의 용융물질을 용해시키기 위한 가열수단이 포함되어, 용해된 용융물질과 용융시 발생되는 열핵반응의 열을 열원으로 스팀과 온수를 생산할 수 있도록 된 것을 특징으로 하는 도가니로를 이용한 보일러를 제공한다. The present invention includes a crucible furnace which is installed inside the boiler to contain molten material, and heating means for dissolving the molten material of the crucible furnace as heat sources. It provides a boiler using a crucible furnace characterized in that it can produce steam and hot water.

The continuous electric induction furnace for preparing rock/mineral wool raw materials liquation

本发明公开了一种连续制备岩/矿棉原料熔液的感应电炉，包括炉壳，所述炉壳内设有不产生感应涡流的耐火材料坩埚，所述耐火材料坩埚的外周安装有感应圈，所述耐火材料坩埚内套装有石墨坩埚，所述石墨坩埚下部的外周壁与所述耐火材料坩埚之间设有集液间隙，所述石墨坩埚底部的外周边设有出液孔，对应所述集液间隙的所述耐火材料坩埚的壁上设有熔液溢出口；本发明通过石墨坩埚和耐火材料坩埚套装使用，利用感应电热效应原理，通过所述石墨坩埚将岩/矿棉原料熔融。本发明结构简单，彻底解决了不能利用电能熔融岩/矿棉原料的技术难题，大大提高了岩/矿棉制造企业的生产效率和经济效益，也具有极大的社会效益。

Induction crucible furnace

An induction crucible furnace for the smelting of materials comprises a crucible which is surrounded by the induction coils and yoke which are mounted upon an intermediate vessel or shell closed by a cover overlying a mass of insulating material interposed between the crucible and inductor and the shell. The intermediate shell has an outwardly extending support flange by which it is mounted on an outward flange of the outer housing with clearance, the clearance likewise being filled with insulating material through openings formed in the flange of the intermediate shell inwardly of the wall of the housing. The flange of the latter projects beyond the flange of the intermediate member and a cover is connected to the housing flange to hermetically seal the system.

ARC OVEN

1. Дуговая печь (2), имеющая металлоприемник (4) печи для плавления стали, свод (6) для закрытия металлоприемника (4) печи и устройство (14) поворота, с помощью которого свод (6) может сдвигаться с металлоприемника (4) печи, в следующем варианте осуществления:a) металлоприемник (4) печи установлен подвижно в вертикальном направлении относительно устройства (14) поворота,b) устройство (14) поворота имеет замок для разъемной фиксации свода (6) в вертикальном направлении.2. Дуговая печь (2) по п. 1, у которой металлоприемник (4) печи установлен в подвижной в вертикальном направлении люльке.3. Дуговая печь (2) по п. 2, у которой люлька (8) может двигаться посредством гидравлических цилиндров (10).4. Дуговая печь (2) по п. 3, у которой люлька (8) имеет несколько приводимых в действие отдельно гидравлических цилиндров (10).5. Дуговая печь (2) по п. 2, у которой свод (6) при закрытии металлоприемника (4) печи удерживается посредством расположенных на люльке (8) опор (12).6. Дуговая печь (2) по п. 3, у которой свод (6) при закрытии металлоприемника (4) печи удерживается посредством расположенных на люльке (8) опор (12).7. Дуговая печь (2) по п. 4, у которой свод (6) при закрытии металлоприемника (4) печи удерживается посредством расположенных на люльке (8) опор (12).8. Дуговая печь (2) по одному из пп. 1-7, у которой свод (6) посредством устройства (14) поворота путем вращательного движения вокруг оси (A), проходящей в вертикальном направлении, может сдвигаться с металлоприемника (4) печи. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (51) МПК F27B 3/06 (11) (13) 2015 104 340 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2015104340, 12.06.2013 (71) Заявитель(и): ПРАЙМЕТАЛЗ ТЕКНОЛОДЖИЗ АУСТРИА ГМБХ (AT) Приоритет(ы): (30) Конвенционный приоритет: 11.07.2012 EP 12175917.9 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 11.02.2015 R U (43) Дата публикации заявки: 27.08.2016 Бюл. № 24 (72) Автор(ы): МОССМАНН Бьерн (DE ...

Preparation of samples for XRF using flux and platinum crucible

A method of of preparing samples for XRF using a flux and a platinum crucible includes forming the flux into a free-standing crucible liner. This may be achieved by mixing lithium borate particles with a liquid to form a paste; placing the lithium borate paste onto the inner surface of a mould; and after drying removing from the mould and firing the lithium borate paste to dry the lithium borate to form a free-standing crucible liner. The liner may be placed within a platinum crucible and then a sample placed in the liner. The temperature of the crucible is raised to a sufficient temperature that any oxidation reaction takes place before taking the temperature above the melting temperature of the flux to melt the crucible liner and dissolve the sample into the flux. The crucible can then be cooled and XRF measurements made on the sample.

Glass induction melting furnace using a cold crucible

본 발명은 단열 물질을 용융하기 위한 용융로에 관한 것으로, 연속적인 금속 재 측벽을 가진 냉각된 도가니(10)와, 분할되고 냉각된 저면부(12)와, 저면부의 하부에 위치하며 유일한 가열수단을 형성하는 적어도 하나의 유도 코일(28)을 구비한다. 도가니 내부의 용융액의 깊이와 유도 코일의 여기 주파수는 상기 깊이와 도가니의 내측 반경의 1/2이 유도 코일의 여기 주파수로부터 초래되는 용융액의 표층 두께보다 작게 되도록 선정된다. The present invention relates to a smelting furnace for melting thermal insulation material, comprising a cooled crucible (10) with continuous metal ash sidewalls, a divided and cooled bottom (12), and a sole heating means located below the bottom. At least one induction coil 28 to be formed. The depth of the melt inside the crucible and the excitation frequency of the induction coil are selected such that half of the depth and the inner radius of the crucible are smaller than the surface layer thickness of the melt resulting from the excitation frequency of the induction coil.