System and method for manufacturing cement clinker utilizing waste materials

Techniques are generally described for producing cement clinker that includes forming cement clinker in a kiln, heating waste additives, and applying the heated waste additives to the cement clinker in the kiln. Additionally, examples are generally described that include an apparatus for producing cement clinker that includes a kiln in which cement clinker is formed and a device having an opening positioned inside the kiln which provides heated waste additives to the kiln for application to the cement clinker. An example device for applying waste additives to cement clinker includes an eductor configured to receive waste additives and transport air in which the waste additives are pneumatically entrained, and includes a lance coupled to the eductor and configured to receive the pneumatically entrained waste additives and receive a support gas that reacts with the waste additives and heats the same for application to the cement clinker.

Process for the Manufacture of Synthetic Pozzolan

Disclosed is a process for the manufacturing of synthetic pozzolan with desirable color properties. Feed material is dried, crushed, and preheated in a drier crusher. The dry, crushed material is collected and fed to a calciner where it is heated to become a synthetic pozzolan. The synthetic pozzolan is then fed to a cooler where it is maintained for a least a portion of the cooling step in a reducing atmosphere.

Rotary kiln lining and method

Provided is a rotary kiln having a cylindrical shell having an inner cylindrical surface and a longitudinal axis and a kiln lining disposed on the inner cylindrical surface of the shell. The kiln lining includes one or more radial portions of a first size of shaped refractory material disposed on the inner cylindrical surface of the shell along the longitudinal axis for at least a portion of the shell and one or more lifter sections comprising a second size of shaped refractory material that extend along the longitudinal axis for at least a portion of the shell and are between radial portions of the first size of shaped refractory material, wherein the second size of shaped refractory material is greater than the first size of shaped refractory material, such that the second size of shaped refractory material extends orthogonally from the inner cylindrical surface for a greater portion of the diameter of the shell than the first size of shaped refractory material, the second size of shaped refractory materials thereby forming a series of blunt faces. Also included are methods of processing materials using the inventive kiln lining, and methods of assembling the inventive kiln lining.

Hydrodynamic bearing intended to support a cylinder driven in rotation about its axis

A hydrodynamic bearing for supporting a hollow cylinder that may be deformable in the radial direction, driven in a rotational movement about its axis, the diameter being greater than or equal to one meter, the bearing essentially consisting of a bushing and a bushing support, and in which the bushing, notably of constant thickness, extends over a portion of cylinder of axis δ, having a guide surface, intended to follow the exterior surface of the cylinder via a film of lubricant, and a surface secured to the bushing support. The bushing support has, if appropriate locally, at least in the region of an intermediate zone of the bearing, cross-section-reducing elements allowing elastic deformation of the bearing so as to limit the maximum value of the guide forces over the bushing. The bearing is useful in supporting and guiding a rotating hollow grinder subjected to unevenly distributed forces during rotation.

GRINDING MILL

A grinding mill includes a mill body defining a grinding cavity, the mill body supported at opposing sides by respective bearings, a motor, operable to drive the mill body and arranged adjacent to at least one bearing, and a torque transmitter. The torque transmitter has a diameter smaller than the diameter of the grinding cavity and larger than the diameter of the bearings. 1. A grinding mill , comprising:a mill body defining a grinding cavity, the mill body supported at opposing sides by respective bearings;a direct drive motor operable to drive the mill body and arranged adjacent at least one bearing;a torque transmitter adapted to transmit a torque from the direct drive motor to the mill body and having a diameter smaller than a diameter of the grinding cavity and larger than a diameter of the at least one bearing.2. The grinding mill as claimed in claim 1 , comprising:a rotor-end circumference of the torque transmitter along which the torque transmitter is connected to a rotor of the direct drive motor, the rotor-end circumference having a diameter that is larger than an outer diameter of an engagement portion of the at least one bearing and smaller than an outer diameter of the grinding cavity and wherein the torque transmitter compensates a radial gap between the rotor and the engagement portion.3. The grinding mill as claimed in claim 1 , wherein a mill-body-end of the torque transmitter is fixed to the grinding cavity of the mill body.4. The grinding mill as claimed in claim 2 , wherein a mill-body-end of the torque transmitter is fixed to the engagement portion of the mill body.5. The grinding mill as claimed in claim 1 , wherein the torque transmitter is a separate element.6. The grinding mill as claimed in claim 1 , wherein the torque transmitter is a torque tube.7. The grinding mill as claimed in claim 6 , wherein the torque transmitter is rotationally symmetrical.8. A grinding mill as claimed in claim 7 , wherein the torque transmitter is conical.9. A ...

PLANETARY MILL AND METHOD OF MILLING

A planetary mill is disclosed. The planetary mill comprises a self-balancing milling assembly comprising a pair of elongate floating milling chambers arranged in parallel to and on opposite sides of a main axis wherein the milling chambers are free to move outwards in a direction radial to the main axis, a drive assembly for rotating the milling assembly in a first direction of rotation about the main axis, and at least one of belt surrounding the pair of floating milling chambers such that when the milling assembly rotates about the main axis, the at least one belt limits a radial travel outwards of each of the milling chambers. 1. A planetary mill comprising:a self-balancing milling assembly comprising a pair of elongate floating milling chambers arranged in parallel to and on opposite sides of a main axis wherein said milling chambers are free to move outwards in a direction radial to said main axis;a drive assembly for rotating said milling assembly in a first direction of rotation about said main axis; andat least one belt surrounding said pair of floating milling chambers such that when said milling assembly rotates about said main axis, said at least one belt limits a radial travel outwards of each of said milling chambers.2. The planetary mill of claim 1 , comprising a plurality of said belts arranged side-by-side.3. The planetary mill of claim 1 , wherein said at least one belt and said milling chambers are made of a heat conducting material claim 1 , wherein said milling chambers produce heat during milling and further wherein said belts cool an outer surface of said milling chambers by conducting said heat away from said milling chambers.4. The planetary mill of claim 3 , wherein said at least one belt polishes an outer surface of said chambers thereby improving a conductive contact between an inner surface of said at least one belt and said outer surface of said milling chambers.5. The planetary mill of claim 1 , wherein said drive assembly rotates each ...

ROLLER BED WITH ELECTRICAL CLUTCH

The present invention relates to a roller bed () for rotating a generally circular work piece () in circumferential direction. The roller bed () comprises two supporting members () and each supporting member () comprises a top roller () and a bottom roller (). The rollers () are adapted for simultaneous mechanical drive in the same circumferential direction. Each top roller () is also connected to an electrical clutch which is adapted for disengaging the top roller () from the simultaneous mechanical drive. The present invention further relates to a system of roller beds (). 1. A roller bed for rotating a generally circular work piece in circumferential direction , the roller bed comprising:two supporting members, each supporting member comprising a top roller and a bottom roller,wherein said top and bottom rollers are all adapted for simultaneous mechanical driving in the same circumferential direction, andwherein each top roller is connected to an electrical clutch, said electrical clutch adapted for disengaging said top roller from said simultaneous mechanical driving.2. A roller bed according to claim 1 , wherein said electrical clutch is adapted for rotating each top roller in a circumferential direction which is directed towards an opposing top roller.3. A roller bed according to claim 1 , wherein said electrical clutch is remotely controllable.4. A roller bed system comprising at least two roller beds according to and at least one gear box claim 1 , wherein said gear box is connected to said at least two roller beds. The present invention relates to the field of managing and adjusting the position of large work pieces. In particular, the invention relates to a roller bed for rotating a generally circular work piece in circumferential direction. The roller bed comprises two supporting members, each supporting member comprises a top roller and a bottom roller, and the rollers are adapted for simultaneous mechanical drive in the same circumferential direction. ...

Process for controlling a crystal form of alite in portland cement clinker

The present invention relates to a process of controlling crystal form of Alite in Portland cement clinker, wherein the said Portland cement clinker is thermally treated in order to change the crystal form of Alite in Portland cement clinker, so as to improve performance of resulting Portland cement clinker. The said process of present invention is easy and feasible.

Plant for producing cement with central grinding unit

A plant for producing cement, having a first stage for crushing raw material to form raw powder, a second stage for calcination and sintering of the raw powder to form cement clinker, a third stage for cooling the sintered cement clinker, and a fourth stage for crushing the sintered cement clinker to form cement. The first stage for crushing raw material to form raw powder and the fourth stage for crushing the sintered cement clinker to form cement are structurally combined. In this way, during servicing or repair of one crushing stage, the plant need not be shut down because, y variable circuitry switching, the crushing stages permit plant operation with reduced production output. 15-. (canceled)6. A plant for producing cement , comprising:a first stage for crushing raw material to form raw powder,a second stage for calcining and sintering the raw powder to form cement clinker,a third stage for cooling the sintered cement clinker, anda fourth stage for crushing the sintered cement clinker to form cement,wherein the first stage for crushing raw material to form raw powder and the fourth stage for crushing the sintered cement clinker to form cement are combined structurally.7. The plant as claimed in claim 6 , wherein the first stage for crushing raw material to form raw powder and the fourth stage for crushing the sintered cement clinker to form cement are each constructed as a circulating grinding system with separators claim 6 , wherein at least one gas feed line leads from the remaining stages of the plant into the first stage and into the fourth stage claim 6 , and conduct gas for separating the circulating grinding systems of the first stage and fourth stage.8. The plant as claimed in claim 7 , wherein the separators are separated structurally from the first stage for crushing raw material to form raw powder and from the fourth stage for crushing the sintered cement clinker to form cement.9. The plant as claimed in claim 8 , wherein the separator for the first ...

Magnet supported rotary drum dryer

A rotary drum dryer is supported by magnetic non-contact bearings rather than by rollers or wheels which are normally used to support a rotary drum cylinder. A plurality of rare earth permanent magnets are positioned on the outside surface of the cylindrical dryer to form at least two external annular rings. One U-shaped semi-circular channel supported with a cradle have similar rare earth permanent magnets positioned at selected locations on the inside curvature thereof with the open end facing upward and disposed below in alignment with and spaced apart from each one of the at least two annular rings of magnets supporting the on the cylindrical dryer. The like pole magnets affixed to the surface of the cylinder repel the like pole magnets facing them disposed in the U-channels of the cradle causing the cylinder to levitate above and spaced apart a selected distance from the cradle.

TUBE MILL

A tube mill has a body arranged for rotation about an axis of rotation. Material to be ground can be introduced into the body for comminution. The tube mill has an electric motor for rotationally driving the body. The electric motor has a rotor arranged around the body and connected to the body for rotation therewith and has a stator arranged stationarily around the rotor. The tube mill has a concrete element running around at least half the circumference of the stator yoke which is connected to the concrete element in such a way that forces acting on the stator yoke are transferred to the concrete element. 18.-. (canceled)9. A tube mill , comprising:a body disposed for rotation about an axis of rotation and receiving material to be ground for comminution;an electric motor for rotationally driving the body, said electric motor having a rotor disposed around the body in fixed rotative engagement with the body, and a stator yoke disposed stationarily around the rotor; anda concrete element running around at least half a circumference of the stator yoke, said stator yoke being connected to the concrete element such that a force acting on the stator yoke is transferred to the concrete element.10. The tube mill of claim 9 , wherein the concrete element is made of a plurality of segments.11. The tube mill of claim 9 , wherein the concrete element is embodied in one piece.12. The tube mill of claim 9 , wherein the concrete element is disposed so as to run around at least three-quarters of the circumference of the stator yoke.13. The tube mill of claim 9 , wherein the concrete element is disposed so as to run around the entire circumference of the stator yoke.14. The tube mill of claim 9 , wherein the concrete element is spaced from the axis of rotation by a constant distance in a radial direction.15. The tube mill of claim 9 , wherein the concrete element has ducts for cooling the electric motor.16. The tube mill of claim 9 , wherein the electric motor has a power output ...

PROCESS AND PLANT FOR CEMENT CLINKER PRODUCTION

Plant and process for cement clinker production includes preheating a raw meal, a calcination step where the raw meal is brought to a temperature of about 800-850° C. to substantially decompose its mineral constituents into their oxides, and a sintering step where the load is brought to a temperature of 1300 to 1450° C. to form CaSiO(or (CaO).SiO), to further decompose calcium carbonate and partially melt the load to form Ca.SiO(or (CaO).SiO) in a rotarykiln, followed by cooling the resulting clinker, and optionally milling it, wherein untreated oil sludge is supplied into an injection zone of the calcination zone operated at a material temperature of approx. 800-850° C., the injection zone including the bottom discharge of the lowest cyclone stages and/or of the precalciner, if appropriate, the feed-in slope of the rotary kiln and the gas phase over the mineral bed at the material inlet end of the rotary kiln. 115-. (canceled)16. A process for cement production including a raw meal preheating step performed in a preheating zone , a calcination step in which the raw meal is brought to a temperature of approximately 800-850° C. leading to substantial decomposition of the mineral constituents of the raw meal into their oxides , and a sintering step in which the load is brought to a temperature of 1300 to 1450° C. to form CaSiO(or (CaO).SiO) , to further decompose calcium carbonate and partially melt the load to form Ca.SiO(or (CaO).SiO) in a rotary kiln , followed by cooling of the resulting clinker in a clinker cooling zone , and optionally by a clinker milling step in a clinker milling zone , wherein oil sludge is supplied in an injection zone comprised within the calcination zone , operated at a material temperature of approx. 800-850° C. , said injection zone comprising the bottom discharge of the lowest cyclone stages and/or of the precalciner , if appropriate , the feed-in slope of the rotary kiln and the gas phase over the mineral bed at the material inlet end ...

LOWER VESSEL OF RH DEGASSER

A bottom part refractory includes a center part refractory, an arrangement refractory which is arranged contiguously with the center part refractory, and a connection refractory which is arranged at a position where at least a portion of the connection refractory overlaps with a vertically downward projection view of a side wall refractory. The connection refractory which is contiguously arranged with the arrangement refractory is constituted of two or more force transmission refractories arranged in the direction toward the arrangement refractory from the side-wall refractory. Opposedly facing surfaces between the force transmission refractories at least at a position among the force transmission refractories are inclined such that upper portions of the opposedly facing surfaces are positioned on a more inner side of a bottom portion than lower portions of the opposedly facing surfaces are positioned. 1. A lower vessel of an RH degasser where a bottom portion having two circulating flow tubes is lined with a plurality of bottom part refractories , and an inner surface of a side wall is lined with a plurality of side-wall refractories wherein ,the plurality of bottom part refractories include center part refractories which are arranged at a center part sandwiched between two circulating flow tubes, arrangement refractories which are contiguously arranged with the center part refractories, and are arranged along an intersecting direction which intersects a line which passes the center part and connects two circulating flow tubes in a horizontal cross-sectional view of the bottom part, connection refractories which are arranged at positions where at least a portion of each of the connection refractories overlaps with a vertically downward projection view of the side-wall refractories, and other bottom part refractories which are arranged at other bottom portion positions,out of the connection refractories, at least the connection refractories which are arranged ...

DRIVE DEVICE AND THE CORRESPONDING ROTARY KILN

This drive device () is capable of transmitting a drive torque to the combustion chamber of a rotary kiln. The drive device () includes a drive ring gear () adapted so as to be attached to the combustion chamber. At least a portion of the drive ring gear () is fabricated out of cast iron. 16688. A drive device () for transmitting a drive torque to the combustion chamber of a rotary kiln , the drive device () comprising a drive ring gear () adapted so as to be attached to the combustion chamber , characterised in that at least a portion of the drive ring gear () is fabricated out of cast iron.2. A drive device according to claim 1 , characterised in that the cast iron is a spheroidal graphite cast iron.38. A drive device according to claim 1 , characterised in that the drive ring gear () is entirely fabricated out of cast iron.4148. A drive device according to comprising a drive pinion () meshing with the drive ring gear () claim 1 , and preferably comprising a single drive pinion.514. A drive device according to claim 4 , characterised in that the or each drive pinion () is made out of steel.62. A rotary kiln () comprising:{'b': '4', 'a rotary combustion chamber () and'}{'b': 6', '4', '6', '8', '4, 'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'a rotary drive device () for the combustion chamber , characterised in that the drive device () is a device according to , the drive ring gear () being attached so as to be rotatable, to the combustion chamber ().'}78. A drive device according to claim 2 , characterised in that the drive ring gear () is entirely fabricated out of cast iron.8148. A drive device according to comprising a drive pinion () meshing with the drive ring gear () claim 2 , and preferably comprising a single drive pinion. The present invention relates to a drive device for transmitting a drive torque to the combustion chamber of a rotary kiln, the drive device comprising a drive ring gear adapted so as to be attached to the combustion chamber.From ...

ROTARY DRUM APPARATUS COMPRISING A ROTARY DRUM AND AT LEAST ONE ELECTRIC MOTOR FOR DRIVING THE DRUM, WITH A STATOR EXTENDING AGAINST A PART OF CIRCUMFERENCE OF THE DRUM

A rotary drum apparatus comprising a drum rotatable around a longitudinal axis, and at least one electric motor for driving the drum in rotation around the longitudinal axis, each drive motor comprising a stator and a rotor, the rotor comprising at least one ring portion joint together with the drum and extending substantially perpendicularly to the longitudinal axis. The stator of each drive motor extending against a part of circumference of the drum perpendicularly to the longitudinal axis. 1. A rotary drum apparatus comprising:a drum rotatable around a longitudinal axis; andat least one electric drive motor configured to drive the drum in rotation around the longitudinal axis, each of the at least one electric drive motor comprising a stator and a rotor, the rotor comprising at least one ring portion joined together with the drum and extending substantially perpendicularly to the longitudinal axis,wherein the stator of each of the at least one electric drive motor extends against a part of circumference of the drum perpendicularly to the longitudinal axis.2. The rotary drum apparatus according to claim 1 , wherein the part of circumference of the drum against which the stator extends has an angular sector of value less than about 90°.3. The rotary drum apparatus according to claim 1 , wherein the part of circumference of the drum against which the stator extends has an angular sector of value less than about 60°.4. The rotary drum apparatus according to claim 1 , wherein the part of circumference of the drum against which the stator extends has an angular sector of value less than about 30°.5. The rotary drum apparatus according to claim 1 , wherein the at least one electric drive motor comprises two electric drive motors configured to drive the drum in rotation around the longitudinal axis.6. The rotary drum apparatus according to claim 5 , wherein the stators of both of the two electric drive motors are substantially diametrically opposed with respect to the ...

METHOD OF PRODUCING COMPOSITE METAL OXIDE, METAL OXIDE SINTERED BODY, AND ROTARY KILN

Provided is a method of producing a composite metal oxide including, to calcine a composition containing an alkali metal and obtain a composite metal oxide, calcining the composition while being arranged on a mount a part of which in contact with the composition is formed of a metal oxide component. The metal oxide component has a content of K atoms ranging from 5 to 13 parts by weight in terms of KO with respect to 100 parts by weight of the metal oxide component, and a total content of Al atoms, Zr atoms, Mg atoms, and Ce atoms ranging from 15 to 70 parts by weight in terms of oxides with respect to 100 parts by weight of the metal oxide component. The present invention thus provides a method of producing a composite metal oxide containing an alkali metal with reduced production costs. 1. A method of producing a composite metal oxide , the method comprising:to calcine a composition containing an alkali metal and obtain a composite metal oxide, calcining the composition while being arranged on a mount a part of which in contact with the composition is formed of a metal oxide component, wherein{'b': 5', '13, 'sub': '2', 'the metal oxide component has a content of K atoms ranging from to parts by weight in terms of KO with respect to 100 parts by weight of the metal oxide component, and a total content of Al atoms, Zr atoms, Mg atoms, and Ce atoms ranging from 15 to 70 parts by weight in terms of oxides with respect to 100 parts by weight of the metal oxide component.'}2. The method of producing a composite metal oxide according to claim 1 , wherein the metal oxide component has a Vickers hardness of 260 or more.3. The method of producing a composite metal oxide according to claim 2 , wherein the metal oxide component has an amount of blast abrasion of 18% or less.4. The method of producing a composite metal oxide according to claim 1 , wherein the metal oxide component is a metal oxide sintered body obtained by sintering a sintered body raw material that contains a ...

Method and Device for Producing Cement Clinker

In a device for baking of clinker in a clinker, the heat generated in the furnace can be used in a particularly efficient and versatile manner if heat generated in the furnace is transferred, by means of a first heat exchanger, to a heat carrier fluid, the heated heat carrier fluid is transported through at least one line to at least one second heat exchanger, and the heat is then discharged to a heat sink, for example in order to heat a flow of flue gas to a temperature required for the dentitrifiaction thereof. 1. A device for manufacturing clinker , comprising at least:a kiln for baking a raw-meal to clinker, the kiln having an outlet for flue gases;a clinker cooler for cooling clinker taken from the kiln with a cooling agent; andmeans for denitrification of flue gases generated in the kiln;wherein(i) the device has at least one first heat exchanger configured to transfer heat generated in the kiln during the combustion process to at least one heat-carrier fluid;(ii) the first heat exchanger is connected to at least one second heat exchanger via at least one conduit for the heat-carrier fluid in order to heat flue gases in the second heat exchanger with the heat previously provided to the heat-carrier fluid; and(iii) the second heat exchanger has means for conducting the heated flue gases to the means for denitrification.2. The device according to claim 1 , whereinthe clinker cooler has at least one cooling-agent tap for drawing off cooling agent heated by the clinker and conducting it to the first heat exchanger, whereby heat stored in the cooling agent is conducted to the heat-carrier fluid.3. The device according to claim 1 , whereinthe device has a further heat exchanger that is connected to the means for denitrification and to the second heat exchanger in such manner that heat of the flue gases issuing from the means for denitrification heats flue gases entering into the second heat exchanger.4. The device according to claim 1 , whereinthe first heat ...

MULTI-STAGE CEMENT CALCINING PLANT SUSPENSION PREHEATER

The invention relates to multi-stage cement calcining plant suspension preheater of the kind mentioned in the introduction, wherein the preheater comprises a top separator comprising a central tube entering the top separator in a lowermost part of the separator housing whereas the central tubes of the bottom separators enters the separator housing in an upper part of the separator housing. 1. A multi-stage cement calcining plant suspension preheater comprising:a plurality of stages each of which has a separator for separating raw cement meal from a gas in which the meal is suspended and wherein the separators of the plurality of stages are serially connected and in series with a calcining combustor,the plurality of stages comprising a top separator arranged at the uppermost stage of the preheater and a plurality of bottom separators arranged at the lowermost stages of the preheater, a top separator housing comprising a substantially cylindrical top separator upper part and a substantially conical top separator lower part,', 'a top separator tangential inlet in the top separator upper part of the top separator housing for introducing an un-separated stream of gas and raw cement meal in suspension,', 'a top separator outlet in a lowermost end of the conical top separator lower part for discharging a first fraction of coarse cement raw meal material,', 'a top separator central tube extending with a free end axially into the top separator housing for diverting a second fraction of fine cement raw meal material and gas,, 'the top separator comprising a bottom separator housing comprising a substantially cylindrical bottom separator upper part and a substantially conical bottom separator lower part,', 'a bottom separator tangential inlet in the bottom separator upper part of the bottom separator housing for introducing an unseparated stream of gas and raw cement meal in suspension,', 'a bottom separator outlet in a lowermost end of the conical bottom separator lower part ...

Device for Pre-Heating Cement Raw Meal for Cement Clinker Production

The device for pre-heating cement raw meal for the cement clinker production comprises at least one heat exchanger line for charging cement raw meal in countercurrent flow to the hot gases drawn through the heat exchanger line and a supporting structure () for the at least one heat exchanger line, wherein the heat exchanger line comprises a plurality of heat exchangers () which are interconnected and through which flow can pass consecutively. The supporting structure () comprises stands () which jointly form a triangular outline () and serve to transfer load into at least one foundation. 1192021. A device for pre-heating cement raw meal for cement clinker production comprising at least one heat exchanger line for charging cement raw meal in countercurrent flow to hot gases drawn through the heat exchanger line; and a supporting structure for the at least one heat exchanger line , wherein the heat exchanger line comprises a plurality of interconnected heat exchangers through which flow can pass consecutively , and the supporting structure () comprises stands () which serve to transfer load into at least one foundation and jointly form a triangular outline ().22021. The device according to claim 1 , wherein the supporting structure comprises three stands () arranged in a triangle ().320. The device according to claim 1 , wherein the stands () essentially extend beyond the height of the heat exchanger line.420. The device according to claim 1 , wherein the stands () are arranged to transfer the main load of the heat exchanger line into the at least one foundation.520. The device according to claim 1 , wherein the stands () are hollow in design.620. The device according to claim 1 , wherein the stands () are arranged inclined towards each other.720. The device according to claim 6 , wherein the stands () are each inclined at an angle of 1-10° to the vertical.820. The device according to claim 1 , wherein the device further comprises struts or platforms for ...

MOTOR ASSEMBLY AND METHOD OF ASSEMBLING MOTOR

In a motor assembly, a rotor and a trigger wheel are each secured to a first race of a four-point contact ball bearing. The circumferential position of the rotor and trigger wheel are each fixed with respect to the first bearing, and therefore with respect to one another. A resolver sensor is bolted to a housing. A second race is mounted at a fixed axial position relative to the housing, thereby locating the trigger wheel with respect to the resolver sensor. In some embodiments, the first race may be an inner race and the second race an outer race. In other embodiments, the first race may be an outer race and the second race an inner race. 1. A method of assembling a motor comprising:mounting a resolver sensor onto a housing;providing a bearing including a first race, a second race, and a plurality of rolling elements, the rolling elements being supported between the first race and the second race;securing a trigger wheel to the first race at a circumferentially fixed, predetermined relative position;after securing the trigger wheel to the first race, securing a rotor of the motor to the first race at a circumferentially fixed, predetermined relative position; andsecuring the second race to the housing at a fixed, predetermined axial and radial position relative to the resolver sensor.2. The method of wherein the resolver sensor is mounted to the housing using bolts.3. The method of wherein the first race is an outer race and the second race is an inner race.4. The method of wherein securing the second race to the housing comprises securing the second race to a shaft that is fixed to the housing.5. The method of wherein the first race is an inner race and the second race is an outer race.6. The method of wherein securing the trigger wheel to the first race comprises:sliding the trigger wheel onto the first race such that an anti-rotation tab of the trigger wheel aligns with an anti-rotation notch of the first race; andinstalling an axial locking device.7. The method ...

Calcination apparatus, process for producing oxide catalyst, and process for producing unsaturated acid or unsaturated nitrile

Disclosed is a calcination apparatus, including: a calcination tube having open ends at both terminals; a pair of hoods, each hood covering each open end of the calcination tube; and a pair of rings, each ring sealing a gap between the calcination tube and the hood, wherein the rings are directly or indirectly fixed on an outer surface of the calcination tube; a groove is provided along a circumferential direction of the ring at a contact surface side between the ring and the hood; a sealed chamber surrounded by the hood and the groove is formed; and both the calcination tube and the rings rotate in a circumferential direction of the calcination tube while keeping the hood in contact with both sides of the groove.

SUPPORT, SUSPENSION, DRIVE, AND POSITION CONTROL SYSTEM FOR ROTARY EQUIPMENT

A support, suspension, drive, traction and position control system comprised of mechanical, electrical, and hydraulic components integrated with computer controls for the rotation and maintenance of the operation of various types of rotary equipment including kilns, calciners, dryers, grinding mills, ball mills, and dissolvers. Further provided are methods for the use of the support, suspension, drive, traction and position control system and hydraulic components disclosed herein integrated with computer controls to rotate and maintain the operation of various types of rotary equipment. 1. A support , suspension , drive , traction and position control system for operating rotary equipment , the system comprising: two wheels;', 'a drive axle assembly, wherein the two wheels are operably coupled to the drive axle assembly;, 'one or more sets of oppositely disposed roller units, wherein each roller unit comprises a driven gear;', 'a pinion drive gear;', 'a gear box; and', 'a motor;, 'a roller drive unit operably coupled to the drive axle assembly, wherein the roller drive unit comprisesa hydraulic suspension and support system, wherein said hydraulic suspension and support system is operably coupled to said roller drive unit;wherein said roller drive unit is capable of movement both vertically and horizontally;wherein said hydraulic suspension and support system is capable of adjusts the position of said one or more oppositely disposed roller units vertically and horizontally;and an upper flat plate operably coupled to said hydraulic suspension and support system hydraulic piston; and', 'a lower flat plate, wherein said upper flat plate slides on said lower flat plate; and', 'a mechanical kingpin, wherein said kingpin mates said upper flat plate to a slot in said lower flat plate and provides guidance to said upper flat plate., 'a flat plate support system, wherein said flat plate support system comprises2. The system of claim 1 , further comprising:one or more ...

PROCESS AND DEVICE FOR CEMENT CLINKER PRODUCTION

In a process for the production of cement clinker, in which raw meal is preheated in a preheater () using the hot exhaust gases from a clinker kiln, and the preheated raw meal, which is optionally calcined in a calciner (), is burned to clinker in the clinker kiln (), wherein the preheater () includes at least one string of a plurality of cyclone suspension-type heat exchangers (), through which the kiln exhaust gas successively flows and in which the raw meal is preheated in stages, a partial stream of the kiln exhaust gas is diverted such that only a remaining residual stream of the kiln exhaust gas is utilized for preheating the raw meal. 111-. (canceled)1216. A cement clinker production plant for carrying out a process for the production of cement clinker comprising preheating raw meal in a preheater using hot exhaust gases from a clinker kiln , and burning the preheated raw meal , which is optionally calcined in a calciner , to clinker in the clinker kiln , wherein the preheater comprises at least one string of a plurality of cyclone suspension-type heat exchangers , through which the kiln exhaust gas successively flows and in which the raw meal is preheated in stages , wherein a partial stream of the kiln exhaust gas is diverted such that only a remaining residual stream of the kiln exhaust gas is utilized for preheating the raw meal , said cement clinker production plant comprising a clinker kiln having an output-side end , a clinker cooler connected to the output side end , the clinker cooler having a feed-side end , a preheater , and optionally a calciner , connected to the clinker cooler , wherein the preheater comprises at least one string of a plurality of cyclone suspension-type heat exchangers arranged so that the remaining residual kiln exhaust gas is able to successively flow along a flow path through the at least one string of a plurality of cyclone suspension heat exchangers and in which the raw meal is preheated in stages , and a branch duct () ...

Plant for producing cement clinker with gasification reactor for difficult fuels

A plant for producing cement clinker, comprising as viewed in the direction of materials flow, a heat exchanger to preheat raw meal, a downstream calciner to calcine the raw meal, a rotary kiln to sinter the calcined raw meal, and a clinker cooler to cool the sintered cement clinker. A combustion device which carbonizes, pyrolysis or burns difficult fuels, is embodied as a pot reactor or gooseneck reactor in an inverted U-shape, and is positioned upstream of the calciner on the flow path of the exhaust gases from the rotary kiln to the calciner, and has a gas outlet that opens out above a tertiary-air line of the clinker cooler into the calciner. As a result, it becomes possible to burn fuel which is lumpy and/or has poor ignitability, and the gases from incomplete combustion in the reactor are available in the calciner in gaseous form for further combustion. 18-. (canceled)9. A plant for producing cement clinker , having , viewed in the material flow direction , comprising:at least one heat exchanger for preheating raw meal,at least one downstream calcinator for calcining the raw meal,at least one rotary kiln for sintering the calcinated raw meal,at least one clinker cooler for cooling the sintered cement clinker,a combustion device for difficult fuels, which have unpredictable ignition behavior, generally ignite poorly, or require an ignition aid in the form of strong heating is configured and arranged to at least one of initially pyrolysize, carbonize, pyrolyze, and combust the difficult fuels,the combustion device comprising a gooseneck reactor in an inverted U-shape, and being connected upstream from the calcinator on the flow path of the exhaust gases of the rotary kiln to the calcinator,a gas outlet of the combustion device opening into the calcinator above a tertiary air line from the clinker cooler, wherein the upstream gooseneck reactor has a height which is below a height of a reversal point of the calcinator.10. The plant as claimed in claim 9 , wherein ...

ARRANGEMENT FOR SUPPORTING A ROTARY DRUM

An arrangement for supporting a rotary drum, the rotary drum having at least three riding rings distributedly arranged along the axial direction of the rotary drum, the arrangement including a pair of relatively spaced rollers for supporting a riding ring, at least one bearing for each roller, a support for each bearing mounted for movement of the roller toward and away from the shell of the rotary drum and a spring system exerting a spring force acting on the support to counteract the weight of the rotary drum resting on the rollers, wherein the spring system includes a pressure vessel charged with a compressed gas that exerts the spring force and the rotary drum includes at least three riding rings and only at least one middle ring arranged between two outer rings is supported by a pair of relatively spaced rollers that are equipped with the spring system. 1. An arrangement for supporting a rotary drum , said rotary drum having at least three riding rings distributedly arranged along the axial direction of the rotary drum , the arrangement comprising a pair of relatively spaced rollers for supporting a riding ring , at least one bearing for each roller , a support for each bearing mounted for movement of the roller toward and away from the shell of the rotary drum and spring means exerting a spring force acting on the support so as to counteract the weight of the rotary drum resting on the rollers , wherein the spring means comprise a pressure vessel charged with a compressed gas that exerts the spring force and wherein the rotary drum comprises at least three riding rings and only at least one middle ring arranged between two outer rings is supported by a pair of relatively spaced rollers that are equipped with said spring means comprising the pressure vessel charged with the compressed gas.2. The arrangement according to claim 1 , wherein the support is mounted for pivotal movement about a pivot axis and the spring means are arranged to act on the support at a ...

Process and Apparatus for Manufacture of Portland Cement

A method of manufacture of Portland cement clinker is described in a dry process that captures the carbon dioxide emitted from the calcination of carbonate minerals, principally limestone. The process uses an indirectly heated, counter-flow reactor to pre-heat and calcine the cement meal to produce a separate calcined meal and carbon dioxide gas stream, with external heat being provided by the combustion of a secondary fuel stream with pre-heated air. This calcined meal is injected into the conventional rotary kiln, where the hot flue gas from combustion of the primary fuel with pre-heated air is used to fuse, react and sinter the powders to form granules of cement clinker. The clinker and carbon dioxide streams are cooled by the air pre-heaters.

LOCKING CAM STOP

A locking cam stop conducts rotation from a driving part, such as a tire ring, to a driven part, such as a rotary dryer or kiln. The device utilizes clamping cams with logarithmic profiles to secure the tire ring without welding or direct attachment, only frictional force. The cams provide immediate, powerful holding force in the desired direction, while allowing free counter-rotation when necessary. The device utilizes a tension link to maintain sufficient contact with the tire ring, ensuring that the cams will engage and hold the tire ring when necessary. 1. A locking cam stop for conducting rotation from a driving part to a driven part , the locking cam stop comprising:a pair of riser blocks securable to the driven part;a pair of rotatable cams, one each secured to each of the pair of riser blocks; anda tension link connected between the pair of rotatable cams,wherein the rotatable cams include a logarithmic spiral cam profile, and wherein the rotatable cams are displaceable in an axial direction into engagement with the driving part by rotation according to the logarithmic spiral cam profile.2. A locking cam stop according to claim 1 , wherein the pair of rotatable cams are positioned on axial opposite sides of the driving part.3. A locking cam stop according to claim 2 , wherein the tension link urges the locking cams toward each other.4. A locking cam stop according to claim 1 , wherein the tension link urges the locking cams toward each other.5. A locking cam stop according to claim 1 , wherein the tension link comprises a spring.6. A locking cam stop according to claim 1 , wherein the locking cams are rotatable on posts respectively secured in the pair of riser blocks.7. A locking cam stop according to claim 1 , wherein functional surfaces of the rotatable cams are roughened.8. A rotary dryer assembly comprising:a rotary drum supported for rotation about a longitudinal axis;a tire ring disposed surrounding the rotary drum; and a pair of riser blocks ...

ROTARY TUBE KILN

A rotary tube kiln, with a rotatably mounted rotary tube, which has a motorized drive, a mounting, a material inlet and a material outlet, wherein the interior space of the rotary tube has a process space, the inside atmosphere of which is separate from the outside atmosphere. The process space is sealed off from a pressure space by means of a first seal and the pressure space is sealed off from the outside atmosphere by means of a second seal and, by means of a pressing device, a first pressing force can be applied to the first seal and a second pressing force can be applied to the second seal, the first pressing force can be set independently of the second pressing force and, during operation, the internal pressure of the pressure space is higher than the internal pressure of the process space. 1. A rotary kiln comprising:a rotatably mounted kiln tube, which has a motor drive, a bearing, a material inlet and a material outlet, wherein a rotary kiln interior has a process chamber, an inner atmosphere of which is separated from an outer atmosphere, whereinthe process chamber is sealed from a pressure chamber by means of a first seal and the pressure chamber is sealed from the outer atmosphere by means of a second seal, and the first seal can be loaded, by means of a pressing device, with a first pressing force and the second seal can be loaded with a second pressing force, the first pressing force is adjustable independently of the second pressing force and the internal pressure of the pressure chamber is higher than the internal pressure of the process chamber during operation.2. The rotary kiln according to claim 1 , wherein the pressure chamber has a compensation element.3. The rotary kiln according to claim 2 , wherein the pressure chamber is at least partially bounded by the compensation element.4. The rotary kiln according to claim 2 , wherein the compensation element connects the first seal and the second seal in a pressure-tight manner.5. The rotary kiln ...

HEAT-PERMEABLE TUBE CONTAINING COMPOSITE FIBER CERAMIC

The present invention relates to a heat-permeable tube which has a double-walled construction. The material of the interior wall contains fiber composite ceramic. The material of the exterior wall contains metal. The present invention further relates to the use of this tube in a rotary tube furnace and the use of the rotary tube furnace for thermal treatment of materials. Furthermore, the invention relates to the use of a single-walled tube containing fiber composite ceramic as rotary tube. 1. A tube , comprising:an interior wall andan exterior wall,whereinan interior wall material comprises fiber composite ceramic,an exterior wall material comprises metal, and{'sup': '2', 'the tube wall has a heat transfer coefficient at 800° C. of >50 W/(m·K).'}2. The tube according to claim 1 , wherein fibers and/or matrix of the fiber composite ceramic comprise at least one oxide of an element selected from the group consisting of: Be claim 1 , Mg claim 1 , Ca claim 1 , Sr claim 1 , Ba claim 1 , a rare earth element claim 1 , Ti claim 1 , Zr claim 1 , Hf claim 1 , V claim 1 , Nb claim 1 , Ta claim 1 , Cr claim 1 , Mo claim 1 , W claim 1 , Mn claim 1 , Fe claim 1 , Co claim 1 , Ni claim 1 , Zn claim 1 , B claim 1 , Al claim 1 , Ga claim 1 , Si claim 1 , Ge claim 1 , Sn claim 1 , Re claim 1 , Ru claim 1 , Os claim 1 , Ir claim 1 , and In.3. The tube according to claim 1 , wherein SiC/SiC claim 1 , C/SiC claim 1 , ZrO/ZrO claim 1 , ZrO/AIO claim 1 , AIO/ZrO claim 1 , AIO/AIOand/or mullite/mullite is used as the fiber composite ceramic.4. The tube according to claim 1 , wherein claim 1 , at an internal tube diameter of from 100 to 500 mm claim 1 , a wall thickness of the fiber composite ceramic ranges from 1 mm to 10 mm and a wall thickness of the metal ranges from 2 nm to 30 mm.5. The tube according to claim 1 , wherein claim 1 , at an internal diameter of from 200 mm to 500 mm claim 1 , a total wall thickness is from 2 mm to 100 mm claim 1 , with a thickness of the interior wall ...

PLANETARY MILL AND METHOD OF MILLING

A planetary mill is disclosed. The planetary mill comprises a self-balancing milling assembly comprising a pair of elongate floating milling chambers arranged in parallel to and on opposite sides of a main axis wherein the milling chambers are free to move outwards in a direction radial to the main axis, a drive assembly for rotating the milling assembly in a first direction of rotation about the main axis, and at least one of belt surrounding the pair of floating milling chambers such that when the milling assembly rotates about the main axis, the at least one belt limits a radial travel outwards of each of the milling chambers. 120-. (canceled)21. A method for operating a pair of elongate milling chambers comprising:arranging the milling chambers on either side of and in parallel to a first horizontal central axis;rotating the pair of miffing chambers in a first direction of rotation about said first axis wherein said pair of milling chambers are able to travel freely in a direction radial to said first direction of rotation;limiting a travel of each of the pair of milling chambers in said direction radial to said first direction of rotation such that when one of the pair of milling chambers moves outwards a given distance another of the pair of milling chambers moves inwards said given distance.21. The Method of claim 21 , wherein each of the elongate milling chambers has a central axis and further comprising rotating each of the pair of milling chambers about their respective central axis.2322. The Method of claim claim 21 , wherein a direction of rotation of each of the elongate milling chambers is opposite to that of said first direction of rotation.24. The Method of claim 21 , wherein said limiting a travel of each of the pair of milling chambers comprises providing at least one chain belt claim 21 , said at least one chain belt encircling both of the milling chambers.2522. The Method of claim claim 21 , wherein a speed of rotation of each of the milling ...

METHOD OF ENHANCING THE LATENT HYDRAULIC AND/OR POZZOLANIC REACTIVITY OF MATERIALS

The present invention relates to a method of enhancing the latent hydraulic and/or pozzolanic reactivity of materials, especially of waste and by-products, comprising the steps: providing a starting material containing sources for CaO and at least one of SiOand AIOmixing the starting material with water at a water/solids ratio from 0.1 to 100 hydrothermal treating of the starting material mixed with water in an autoclave at a temperature of 100 to 300° C. and a residence time from 0.1 to 24 hours to provide an autoclaved product suitable as supplementary cementitious material. 1. Method of enhancing the latent hydraulic and/or pozzolanic reactivity of materials , especially waste and by-products , comprising the steps:{'sub': 2', '2', '3, 'providing a starting material containing sources for CaO and at least one of SiOand AlO,'}mixing the starting material with water at a water/solids ratio from 0.1 to 100 andhydrothermal treating of the starting material mixed with water in an autoclave at a temperature of 100 to 300° C. and a residence time from 0.1 to 50 hours to provide an autoclaved product with hydraulic, pozzolanic or latent hydraulic reactivity.2. Method according to claim 1 , wherein the starting material has a molar ratio Ca/(Si+Al+Fe) from 1.5 to 3 claim 1 , preferably from 1.5 to 2.5 claim 1 , most preferred of about 2.3. Method according to claim 2 , wherein the required ratio Ca/(Si+Al+Fe) is adjusted by adding further reaction partners before treatment begins.4. Method according to claim 1 , wherein the starting material is chosen from high calcium fly ash claim 1 , low calcium fly ash claim 1 , incineration ash from combustion of municipal wastes both solid and liquid claim 1 , bottom ash claim 1 , slag claim 1 , quartz claim 1 , sand claim 1 , gravel claim 1 , used concrete claim 1 , asbestos and mixtures of two or more of them.5. Method according to claim 1 , wherein the starting materials are optimized with regard to particle size and particle ...

Method and Apparatus for Baking Clinker

To produce cement clinker by baking of raw meal in a kiln, use is conventionally made of a raw meal preheater in which the heat of the flue gas emerging from the kiln is transferred to the raw meal. In order to remove impurities which accumulate in circulation between the kiln and the raw meal preheater, a part of the flue gas is extracted from the kiln, bypassing the raw meal preheater. The heat generated during the baking of cement clinker can be used particularly efficiently if the flue gases extracted and diverted past the raw meal pre-heater are used in a boiler to generate hot steam which can subsequently be expanded in a turbine. 1. An apparatus for manufacturing clinker , comprising:at least one kiln configured to bake raw meal to convert the raw meal into clinker, the kiln having at least one outlet for flue gases and at least one branch for flue gases in order to divert a portion of the flue gases to separate contaminants,at least one raw meal preheater connected to the outlet in such a manner that the flue gases leaving the outlet enter the raw meal preheater to heat the raw meal, andat least one first heat exchanger to pressurize a fluid using the heat generated during the combustion process in the kiln in order to subsequently expand it in at least one turbine, 'the first heat exchanger is connected to the branch in such a manner that the heat from the diverted portion of the flue gas is supplied to the fluid.', 'wherein'}2. The apparatus according to claim 1 , whereinthe branch is connected to at least one mixing chamber to mix the diverted part of the exhaust gases with fresh air.3. The apparatus according to claim 2 , whereinthe mixing chamber has an outlet which is connected to a hot gas dust separator.4. The apparatus according to whereinthe hot gas dust separator has an outlet connected to an inlet of the first heat exchanger.5. The apparatus according to whereinthe first heat exchanger is connected to the kiln in such a manner that the exhaust ...

Rotating Seal Mechanism

A rotating seal mechanism, provided between a fixed body and a rotating body, and comprising: a sealing assembly rotatably connected to the rotating body and disposed on a circumference of the rotating body; a flexible connecting body connecting the sealing component and the fixed body; and a circumferential limiting component disposed on the sealing assembly. The rotating seal mechanism compensates for bouncing movement between and sealingly joins the fixed body and the rotating body. 1. A rotating seal mechanism disposed between a fixed body and a rotating body , comprising: a sealing assembly disposed on a circumference of the rotating body and rotatably connected to the rotating body; a flexible connecting body connected with the sealing assembly and the fixed body; and a circumferential limiting component disposed on the sealing assembly.2. The rotating seal mechanism according to claim 1 , wherein a follower support component is disposed on the sealing assembly claim 1 , and the follower support component is a supporting roller claim 1 , a supporting ring or a supporting block claim 1 , and can roll or slide on an outer circumference of the rotating body and defines a coaxiality between the sealing assembly and the rotating body.3. The rotating seal mechanism according to claim 1 , wherein the sealing assembly comprises a sealing frame body claim 1 , and the sealing frame body is provided therein with a sealing ring claim 1 , a positioning ring for a sealing ring claim 1 , and a gland for a sealing ring claim 1 , the positioning ring for the sealing ring adjoins the sealing frame body and abuts against the sealing ring in a direction close to the rotating body claim 1 , the gland for the sealing ring tightly presses the sealing ring and the positioning ring for the sealing ring in a height direction of the rotating body claim 1 , and the three components cooperate with one another to achieve sealing.4. The rotating seal mechanism according to claim 3 , wherein ...

BEARING ARRANGEMENT AND PARABOLIC TROUGH COLLECTOR

The invention relates to a bearing arrangement (), in particular for bearing the carrying shaft () of a parabolic trough collector (), having a disc- or ring-shaped component (), at least one support roller (), which radially fixes the component () and on which the component () rolls on the circumferential side during rotation about a rotation axis (), and a support structure (), on which the support roller () is mounted by a radial sliding bearing (). According to the invention, the lateral surface () of the support roller () which receives the component () has a convex curve in the axial direction. The invention further relates to parabolic trough collector () mounted on a plurality of such bearing arrangements (). 1. A bearing arrangement for supporting a supporting shaft of a parabolic trough collector , comprising a disk-shaped or ring-shaped component , with at least one support roller that fixes the disk-shaped or ring-shaped component in a radial direction and on which the disk-shaped or ring-shaped component rolls on a circumferential side when rotating about a rotational axis , and a supporting construction on which the support roller is mounted by a radial sliding bearing , a lateral surface of the support roller holding the disk-shaped or ring-shaped component has a convex crowning in an axial direction.2. The bearing arrangement according to claim 1 , wherein the disk-shaped or ring-shaped component is supported by two of the support rollers spaced apart from each other perpendicular to the rotational axis.3. The bearing arrangement according to claim 1 , wherein the lateral surface of the support roller is limited on two end sides in the axial direction by a circumferential collar.4. The bearing arrangement according to claim 3 , wherein an inner surface of each of the collars in the axial direction is inclined away from the lateral surface outward in the radial direction.5. The bearing arrangement according to claim 1 , wherein the support roller is ...

Heat treatment apparatus

The present invention provides a heat treatment apparatus which can increase in size without leading to a decrease in heat transfer performance. The heat treatment apparatus performs heat treatment of treatment objects inside a cylindrical body by heating the cylindrical body rotating around an axis, and the heat treatment apparatus includes a pair of movable support parts provided on both ends side along the axis of the cylindrical body so as to be able to move along the axis and rotatably supporting the cylindrical body around the axis, and a fixed support part provided between the pair of the movable support parts along the axis so as to be unable to move along the axis and rotatably supporting the cylindrical body around the axis, wherein the cylindrical body is supported by a three-point support of the pair of the movable support parts and the fixed support part.

FURNACE FOR SMELTING COPPER FOR LOWER BLOW-THROUGH WITH ENRICHED OXYGEN

The invention describe facilities for smelting copper for a lower blow-through with enriched oxygen, comprising a furnace for lower blow-through, which, in turn, comprises the following characteristics: 1. A copper smelting furnace for lower blow-through with enriched oxygen , wherein it comprises the following characteristics:A body of the furnace with a chamber and partition inside, at least one supply inlet, a smoke outlet, a matte outlet, as slag outlet, at least one side opening for spray guns, at least one lower opening for lances and openings for thermometer and level measurements;At least one oxygen lance inside the lower openings to inject oxygen into the chamber;At least one side spray gun inside the side openings to supply coal dust or reductive gas to the chamber.2. A copper smelting furnace for lower blow-through with enriched oxygen according to claim 1 , wherein the lances are located at the same level or above the special bricks for lances or oar refractory lining.3. A copper smelting furnace for lower blow-through with enriched oxygen according to claim 1 , wherein the partition is located between the area of lances and the end of the slag outlet.4. A copper smelting furnace for lower blow-through with enriched oxygen according to claim 1 , wherein the furnace body has the shape of cask or cylinder and it can rotate claim 1 , where the chamber cross-section is circular and the diameter of the section is constant the furnace's axial direction.5. A copper smelting furnace fur lower blow-through with enriched oxygen according to claim 1 , wherein the furnace can also includes at least a supporting base claim 1 , at least a supporting ring claim 1 , at least a gear and at least a driving device to allow rotation of the furnace.6. A copper smelting furnace for lower blow-through with enriched oxygen according to claim 1 , wherein the slag outlet is in the end wall of the furnace body claim 1 , while the matte outlet is in the opposing end wall to the ...

Rotary Kiln Seal and Method

A rotary seal assembly for a rotary kiln having a hood and a rotary drum with an opening formed between the drum and the hood, and an end. The rotary seal assembly includes a flexible framework arrangement that attaches to the end. The rotary seal assembly includes a riding surface that engages the drum as the drum rotates. The riding surface includes a series of seal segments with each seal segment having a mounting eye positioned to eliminate a fulcrum point at the mounting eye. The rotary seal assembly includes a seal that is supported by the riding surface and is in essentially 360-degree contact with the drum when it is rotating and seals the opening between the drum when it is rotating in the hood to prevent fluid flow into and out of the end. A rotary seal assembly for a rotary kiln having a hood and a rotary drum with an opening formed between the drum and the hood, and an end, includes redundant tension springs which form a complete 360-degree circle around the drum. A method for sealing an opening formed between a drum and a hood. 1. A rotary seal assembly for a rotary kiln having a hood and a rotary drum with an opening formed between the drum and the hood , and an end comprising:a flexible framework arrangement that attaches to the hood;a riding surface that engages the drum as the drum rotates and connects with the framework arrangement in response to the movement of the drum as the drum rotates, the riding surface includes a series of seal segments with each seal segment having a mounting eye positioned to eliminate a fulcrum point at the mounting eye; anda seal that is supported by the riding surface and is in essentially 360-degree contact with the drum when it is rotating and seals the opening between the drum when it is rotating and the hood to prevent fluid flow into and out of the end.2. An assembly as described in wherein the arrangement includes a mounting ring that fixes to the hood.3. An assembly as described in wherein the arrangement ...

SYSTEM AND METHOD FOR REDUCING CARBON DIOXIDE EMISSIONS FROM A FLUE GAS

A system for reducing carbon dioxide emissions from a flue gas is provided. The system includes a carbonator, and a calciner. The carbonator receives the flue gas and lean sorbent particles such that the lean sorbent particles absorb gaseous carbon dioxide from the flue gas and become loaded sorbent particles. The calciner includes a drum that defines a cavity having a first opening and a second opening. The first opening is fluidly connected to the carbonator such that the loaded sorbent particles flow into the cavity from the carbonator. The drum rotates such that at least some of the loaded sorbent particles are mixed with heat-transferring particles so as to release the absorbed gaseous carbon dioxide and exit the drum via the second opening as lean sorbent particles. 1. A system for reducing carbon dioxide emissions from a flue gas , the system comprising:a carbonator that receives the flue gas and lean sorbent particles such that the lean sorbent particles absorb gaseous carbon dioxide from the flue gas and become loaded sorbent particles;a calciner that includes a drum that defines a cavity having a first opening and a second opening, the first opening fluidly connected to the carbonator such that the loaded sorbent particles flow into the cavity from the carbonator; andwherein the drum rotates such that at least some of the loaded sorbent particles are mixed with heat-transferring particles so as to release the absorbed gaseous carbon dioxide and exit the drum via the second opening as lean sorbent particles.2. The system of claim 1 , wherein the drum is inclined.3. The system of claim 1 , wherein the calciner includes an outer shell disposed around the drum so as to hermetically seal the drum.4. The system of claim 3 , wherein the outer shell and the drum define one or more channels through which a cooling medium may flow so as to cool the drum.5. The system of claim 4 , wherein the cooling medium includes the released gaseous carbon dioxide.6. The system ...

DIVIDING-WALL ROTARY KILN APPARATUS

A dividing-wall rotary kiln device comprises a rotary kiln, an exhaust gas residual-heat power generation device, a gas recovery processing device, a cooler, a combustion fan, a feeding system and an exhaust emission system. A refractory brick unit of a kiln body is a hollow structure formed by a refractory inner cylinder and a refractory outer cylinder. A center of the refractory inner cylinder is a kiln chamber. A material channel is between the refractory inner cylinder and the refractory outer cylinder. The feeding system is connected to a feeding device via a raw material preheating compartment or a dividing-wall preheater. The feeding device is provided with a decomposition gas outlet connected to the gas recovery processing device via the raw material preheating compartment or the dividing-wall preheater. The kiln chamber is connected to the exhaust gas residual-heat power generation device via a kiln tail hood. 12652119110916151781410132425111275. A dividing-wall rotary kiln apparatus comprising a rotary kiln , a flue gas residual-heat power generation device () , a gas recovery processing device () , a cooler () , a combustion fan () , a feeding system () and an exhaust emission system , the rotary kiln is provided with a kiln body () , a kiln tail hood () and a kiln head hood () , the kiln body is connected to the kiln tail hood and the kiln head hood via a seal () , the kiln body is formed by a housing and a refractory bricking-up; the kiln head hood is provided with a combustor () , the kiln body is provided with a charging device () and a discharging device () , the charging device and the discharging device is dynamic sealingly connected with the kiln body; the discharging device is connected to the cooler , characterized in that: the refractory bricking-up of the kiln body () is a hollow structure formed by a refractory inner cylinder () and a refractory outer cylinder (); the center of the refractory inner cylinder is a kiln chamber () , a material ...

WHEEL AND LIFT UNIT FOR RADIATION IMAGING MODALITIES

Among other things, a radiation system is provided. The radiation system includes a stationary unit and a rotating unit that rotates about an axis relative to the stationary unit. A radiation source and a detector array are mounted to the rotating unit. A wheel mechanism at least partially supports the rotating unit and facilitates rotation of the rotating unit relative to the stationary unit. A lift unit is supported by the stationary unit and engages the rotating unit. When the lift unit is in a lowered position, the rotating unit is supported by the wheel mechanism and the lift unit is spaced a distance apart from the rotating unit. When the lift unit is in a raised position, the rotating unit is supported by the lift unit and the rotating unit is spaced a second distance apart from the wheel mechanism. 1. A wheel unit for a radiation system , the wheel unit comprising:a wheel mechanism configured to at least partially support a rotating unit and facilitate rotation of the rotating unit relative to a stationary unit, the wheel mechanism comprising at least one roller that is configured to impart rotation to the rotating unit, wherein a radiation source and a detector array are mounted to the rotating unit;a support structure configured to support the wheel mechanism, the support structure defining an opening that is sized to receive the wheel mechanism; and wherein:', 'when the attachment structure is in a locked position, the attachment structure engages the wheel mechanism and the support structure such that the wheel mechanism is attached to the support structure; and', 'when the attachment structure is in an unlocked position, the attachment structure does not engage at least one of the wheel mechanism or the support structure such that the wheel mechanism is detached from the support structure and removable from the support structure through the opening., 'an attachment structure configured to attach the wheel mechanism to the support structure,'}2. The ...

Method for calcination of a carbon dioxide rich sorbent

A method for calcination includes providing a heated coarse solid particle stream with a carbon dioxide rich sorbent to a reactor having a rotatable container.

STEAM-ASSISTED PRODUCTION OF METAL SILICATE CEMENTS, COMPOSITIONS AND METHODS THEREOF

The invention provides a novel, steam-assisted production methodology and associated compositions and methods of use in the manufacture of carbonatable or non-carbonatable metal silicate or metal silicate hydrate (e.g., calcium silicate or calcium silicate hydrate) compositions. These metal silicate compositions and related phases are suitable for use hydraulic, partially hydraulic or non-hydraulic cement that sets and hardens by a hydration process, a carbonation process or a combination thereof, and may be applied in a variety of concrete components in the infrastructure, construction, pavement and landscaping industries. 1. A method for producing metal silicate , or metal silicate hydrate product capable of carbonation or hydration to form a cementitious product , comprising:(a) providing a ground mixture comprising source materials of metal oxide and silica;(b) providing a gas comprising a steam of water over the ground mixture of source materials at a pressure, wherein the steam of water has a partial pressure that ranges from atmospheric pressure to supercritical water pressure; and(c) subjecting the ground mixture of source materials (i) to a temperature and for a time sufficient to calcine the ground mixture, and (ii) to a temperature and for a time sufficient to fuse the calcined ground mixture to form the cementitious product.2. The method of claim 1 , wherein the temperature sufficient to heat the ground mixture is lower than about 1 claim 1 ,200° C.3. The method of claim 2 , wherein the temperature sufficient to heat the ground mixture is lower than about 800° C.4. The method of claim 1 , wherein the temperature sufficient to fuse the ground mixture is lower than about 1 claim 1 ,200° C.5. The method of claim 4 , wherein the temperature sufficient to fuse the ground mixture is lower than about 800° C.6. The method of claim 1 , wherein the steam of water is substantially in supercritical condition.7. The method of claim 1 , further comprising cooling the ...

MICRONISATION MEANS

An apparatus () for micronizing an inorganic salt, having a receiving vessel () for receiving the salt () to be micronized in an interior of the receiving vessel (); a grinding unit () for comminuting the salt () to be micronized located in the receiving vessel () and for forming micronized salt particles (); an ascending pipe (), which is connected fluidically to the receiving vessel () and serves to transport the micronized salt particles (), wherein one end of the ascending pipe () has an outlet orifice () through which the micronized salt particles () can flow out of the apparatus (); a fan () for generating an air stream (); and a housing () with an air outlet () and an air duct () connecting the fan () to the air outlet (), wherein the air duct () is separated by at least one wall from the interior of the receiving vessel (), such that the air stream () generated by the fan () does not flow through the interior of the receiving vessel (), and wherein the air outlet () at least partly surrounds the ascending pipe () in a region of the outlet orifice (). 1. An apparatus for micronizing an inorganic salt , comprising:a receiving vessel for receiving the inorganic salt to be micronized in an interior of the receiving vessel;a grinding unit configured to comminute the inorganic salt to be micronized located in the receiving vessel and to form micronized salt particles;an ascending pipe, which is connected fluidically to the receiving vessel and serves to transport the micronized salt particles, wherein at one end of the ascending pipe an outlet orifice is arranged through which the micronized salt particles can flow out of the apparatus;a fan configured to generate an air stream; anda housing with an air outlet and an air duct connecting the fan to the air outlet, wherein the air duct is separated by at least one wall from the interior of the receiving vessel, such that the air stream generated by the fan does not flow through the interior of the receiving vessel, ...

SMART SLIDE

A sliding style furnace cap features a furnace tube cap and a slider. The furnace tube cap has a first cap portion to couple to a furnace tube of a furnace, and a second cap portion with a bearing assembly arrangement. The furnace tube cap also has an inner tube cap channel passing through it with an inner tube cap channel sealing arrangement configured to extend outside the inner tube cap channel. The slider has an orifice/channel configured therein passing through the slider, couples and slides in the bearing assembly arrangement from an inject position to a rinse position, and vice versa, has a cam-like contoured surface with a first ramp configured to couple a first raised surface and an intermediate lower surface, and with a second ramp configured to couple the intermediate lower surface to a second raised surface. The slider also moves towards the inner tube cap channel and causes the bearing assembly arrangement to force a part/side of the slider to push against the inner channel sealing arrangement as part of the roller bearing arrangement rides up either the first ramp to the first raised portion when the slider is moved to the inject position, or the second ramp to the second raised portion when the slider is moved to the rinse position, and the first part of slider configured to seal the inner tube cap channel sealing arrangement when the slider is in either the inject position or the rinse position. The slider also moves away from the inner tube cap channel and causes the bearing assembly arrangement to allow the part/side of the slider to float above the inner channel sealing arrangement as the part of the roller bearing assembly rides along the intermediate lower surface when the slider is in transition between the inject position and the rinse position. 1. A furnace system comprising:a sliding style furnace cap having a furnace tube cap and a slider;the furnace tube cap having a first cap portion configured to couple to a furnace tube of a furnace, ...

Furnace door sealing device for low-pressure diffusion furnace

A furnace door sealing device for a low-pressure diffusion furnace is provided. The furnace door sealing device includes a furnace door, a fixed shaft and a fixed base which are coaxially arranged in sequence from front to back. A bearing pedestal is fixed at the center of the rear end surface of the furnace door. A centripetal knuckle bearing is arranged in the bearing pedestal. An outer ring of the centripetal knuckle bearing is fixed in the bearing pedestal. An inner ring of the centripetal knuckle bearing fixedly sleeves the front end of the fixed shaft. The rear end of the fixed shaft is fixed in the fixed base. A supporting plate is also fixed on the front end surface of the fixed base. Multiple spring adjusting assemblies are arranged on the supporting plate at an interval.

MANUFACTURING PROCESS OF POZZOLAN WITH COLOR CHANGE AND POZZOLAN THUS OBTAINED

The present invention refers to a manufacturing process of artificial pozzolan which has the final color gray. In order to perform the processes in the desired way, the kiln atmosphere shall contain low oxygen concentration and the presence of reducing agents. However the presence of carbon monoxide at the kiln outlet is not desirable, due to environmental impacts and the increase in specific heat consumption of the kiln. So the process described in this invention comprises the following steps: heating (1), which consists of heating the raw materials to a temperature between 100-350° C. until drying of the material to a moisture mass fraction of 0-5% (wet basis); mixing (2), which consists of mixing the dry raw materials from the heating process with the right proportion of fuel, in from 1% to 5% in mass fraction, according to the concentration of hematite present in the raw material; calcining (3), which consists of heating the fuel and raw materials blend to a temperature between 700-900° C., with oxygen concentration between 1-5% and, finally, cooling (4), which consists of an initial step of rapid decrease in pozzolan temperature until 600° C. and a final step of slow decrease in pozzolan temperature until 120° C. 1. Manufacturing process of pozzolan with color change , comprising the following steps:Heating (1): consists of heating the a raw material blend to a temperature between 100-350° C. until the material is dried to a range of moisture between 0-5% (wet basis);Mixture (2): consists of mixing dry raw materials that came from the heating step, with 1-5% of fuel mass fraction according to the hematite concentration of the raw material;Calcining (3): consists of heating the blend of fuel with the dry raw materials to a temperature between 700-900° C., with oxygen concentration between 1-5%; andCooling (4): consists of an initial step with fast decrease in temperature to 600° C. and a final step with pozzolan temperature decrease to 120° C.2. A process claim ...

PYROLYSIS FURNACE WITH EXTERNAL HEATING FOR PROCESSING SOLID CARBONCARBON-CONTAINING MATERIALS (VARIANTS)

A pyrolysis furnace having a heating chamber which surrounds a cylindrical pyrolysis chamber. The heating chamber is assembled from an upper part and a lower part, which can be joined. Each part of the heating chamber is provided with two rows of heating elements, which are arranged along the length of the housing of the heating chamber symmetrically relative to a vertical plane passing through the axis of the pyrolysis chamber. The heating elements are in the form of units, containing at least one flameless gas burner. The heating elements in the upper part of the heating chamber are arranged in a checkerboard fashion relative to the heating elements in the lower part. The furnace relates to power generation and the environment and is intended for the thermal processing of solid and free-flowing materials, particularly in processes for the pyrolysis of solid carbon-containing materials, including municipal and domestic waste. 1123456278910111213614215266897628986961011121061161216891317142. An externally heated pyrolysis furnace for processing solid carbon-containing materials , comprising a base ; a pyrolysis chamber disposed on said base and being in the shape of a cylinder with end covers , which are connected to a charging tube and a discharging tube ; a heating chamber , which surrounds the pyrolysis chamber and includes a thermally-insulated housing having disposed therein heating elements and , partitions , , and a branch pipe for the removal of flue gases , which is situated in the upper part of the heating chamber ; a feed pipe for supplying an atmosphere of water vapour or carbon dioxide gas to the pyrolysis chamber ; and a pipe for the removal of gaseous products from the pyrolysis chamber , characterized in that the heating chamber is assembled from an upper part and a lower part , which can be joined; each of the parts of the heating chamber is provided with two rows of heating elements , , which are arranged along the length of the housing of the ...

REFRACTORY PRODUCT, A BATCH FOR PRODUCING THE PRODUCT, A METHOD FOR THE PRODUCTION OF THE PRODUCT AND A USE OF THE PRODUCT

The invention relates to a refractory product, a batch composition for producing said product, a method for producing the product and the use of the refractory product. 1. Refractory product comprising the following features: 1.1.1 MgO: at least 92% by mass;', {'sub': 2', '3, '1.1.2 AlO: 1.5 to 7% by mass;'}, {'sub': 2', '3, '1.1.3 FeO: less than 3% by mass;'}, {'sub': '2', '1.1.4 CaO+SiO: 1 to 3% by mass;'}], '1.1 the product has a chemical composition according to which the following oxides are present in the following proportions 1.2.1 the coated grains have a grain size of at least 2 mm;', '1.2.2 the coated grains consist of magnesia, the surface of which has a coating of magnesia spinel at least in sections., '1.2. the product comprises coated grains having the following features2. The product according to claim 1 , having a chemical composition with a content of MgO in the range from 92 to 96% by mass.3. The product according to claim 1 , having a chemical composition with a content of AlOin the range from 2 to 3.5% by mass.4. The product according to claim 1 , having a chemical composition with a content of FeOof less than 1% by mass.5. The product according to claim 1 , having a dynamic modulus of elasticity of less than 40 GPa.6. The product according to claim 1 , having a temperature Tfor refractoriness under load above 1 claim 1 ,700° C.7. The product according to claim 1 , the coating of magnesia spinel having a thickness in the range from 10 to 500 μm.8. The product according to claim 1 , the coated grains having a grain size in the range from 3 to 5 mm.9. The product according to claim 1 , comprising the coated grains in a proportion in the range from 5 and 24% by mass.10. The product according to claim 1 , comprising the coated grains in a proportion in the range from 5 to 24% by mass and further comprising magnesia in a proportion in the range from 76 to 95% by mass.11. The product according to in the form of a shaped fired refractory ceramic product ...

Method and plant for denitrifying bypass gases in a multi-stage system of mixing chambers in a plant for producing cement clinker

A method and a corresponding plant for denitrifying bypass exhaust gases in a cement clinker production plant. Raw meal is sintered in a rotary kiln and deacidified in a calciner. A rotary kiln inlet chamber is connected to the calciner directly or by a riser duct. Bypass exhaust gas is drawn off near the inlet chamber. This exhaust gas is guided into a first mixing chamber, in which the exhaust gas is cooled to between 800 and 950° C., then the exhaust gas is guided through a reaction pipeline segment, wherein the dwell time is between 0.5 and 3 seconds and ammonia, aqueous ammonia solution, or ammonia-releasing substances are injected for denitrification. Then the exhaust gas is guided into a second mixing chamber, in which the exhaust gas is cooled to between 150 to 250° C. Then the exhaust gas is guided to a filter for dust removal.

Metallurgical Furnace

An electrode seal for use in a metallurgical furnace, the furnace comprising a furnace space heated by electrodes extending through an aperture into the furnace space. The electrode seal comprises at least three sets of shoes in consecutive lateral contact, each shoe having a biasing member for biasing a surface of the shoe toward one of the electrodes thereby allowing the one electrode to longitudinally move within the electrode seal while providing electrical insulation between the electrode and the aperture. 1. An electrode seal for use in a metallurgical furnace , the furnace comprising a furnace space heated by electrodes extending through an aperture into the furnace space , the seal comprising:at least three sets of shoes in consecutive lateral contact, each shoe having a biasing member for biasing a surface of the shoe toward one of the electrodes thereby allowing the one electrode to longitudinally move within the electrode seal while providing electrical insulation between the electrode and the aperture.2. The electrode seal of claim 1 , wherein the at least three sets of shoes provide a gap around the electrode to allow for a free lateral movement of that electrode.3. The electrode seal of claim 1 , wherein the at least three sets of shoes allow for a lateral movement of the one electrode therewithin while maintain the electrical insulation.4. The electrode seal of claim 1 , wherein the at least three sets of shoes comprise a first layer of ceramic inner shoes and a second layer of copper outer shoes claim 1 , the two layers of shoes forming a circle and an inner diameter of the circle being greater than the electrode thereby providing a gap therebetween.5. The electrode seal of claim 1 , wherein the at least three sets of shoes are drilled through evenly distributed holes from outside to inside.6. The electrode seal of claim 1 , wherein the biasing member is a spring.7. The electrode seal of claim 1 , wherein the biasing member is adjustable to provide ...

ARRANGEMENT FOR SUPPORTING A ROTARY DRUM

An arrangement for supporting a rotary drum, the rotary drum having at least three riding rings distributedly arranged along the axial direction of the rotary drum, the arrangement including a pair of relatively spaced rollers for supporting a riding ring, at least one bearing for each roller, a support for each bearing mounted for movement of the roller toward and away from the shell of the rotary drum and a spring system exerting a spring force acting on the support to counteract the weight of the rotary drum resting on the rollers, wherein the spring system includes a pressure vessel charged with a compressed gas that exerts the spring force and the rotary drum includes at least three riding rings and only at least one middle ring arranged between two outer rings is supported by a pair of relatively spaced rollers that are equipped with the spring system. 1. An arrangement for supporting a rotary drum , said rotary drum having at least three riding rings distributedly arranged along the axial direction of the rotary drum , the arrangement comprising a pair of relatively spaced rollers for supporting a riding ring , at least one bearing for each roller , a support for each bearing mounted for movement of the roller toward and away from the shell of the rotary drum and spring means exerting a spring force acting on the support so as to counteract the weight of the rotary drum resting on the rollers ,wherein the spring means comprise a pressure vessel charged with a compressed gas that exerts the spring force andwherein the rotary drum comprises at least three riding rings and only at least one middle ring arranged between two outer rings is supported by a pair of relatively spaced rollers that are equipped with said spring means comprising the pressure vessel charged with the compressed gas,wherein the spring means comprise a fluid chamber configured to change its volume upon movement of the roller under the weight of the rotary drum resting on the rollers,wherein ...

METHOD FOR PRODUCING SOLIDIFYING MATERIAL FOR RADIOACTIVE WASTE DISPOSAL VIA RECYCLING OF RADIOACTIVE CONCRETE AND METHOD FOR DISPOSING OF RADIOACTIVE WASTE USING THE SAME

In accordance with the present invention, provided is a method for producing a solidifying material for radioactive waste disposal, the method including a first step (S) of pulverizing radioactive concrete waste and separating aggregates and paste and a second step (S) of using the paste to produce a solidifying raw material, wherein the second step (S) includes a calcination treatment step (S) of calcining a mixture obtained by mixing an additional material with the paste; a sintering treatment step (S) of sintering the mixture in a sintering furnace after the calcination treatment step (S); and a rapid-cooling treatment step (S) of rapid-cooling the mixture after the sintering treatment step (S) to produce a clinker. 1. A method for producing a solidifying material for radioactive waste disposal , the method comprising:{'b': '100', 'a first step (S) of pulverizing radioactive concrete waste and separating aggregates and paste; and'}{'b': 200', '200, 'claim-text': [{'b': '210', 'a calcination treatment step (S) of calcining a mixture obtained by mixing an additional material with the paste;'}, {'b': 220', '210, 'a sintering treatment step (S) of sintering the mixture in a sintering furnace after the calcination treatment step (S); and'}, {'b': 230', '220, 'a rapid-cooling treatment step (S) of rapid-cooling the mixture to produce a clinker after the sintering treatment step (S).'}], 'a second step (S) of using the paste to produce a solidifying raw material, wherein the second step (S) comprises2200230240. The method of claim 1 , wherein the second step (S) further comprises claim 1 , after the rapid-cooling treatment step (S) claim 1 , a solidifying raw material preparation step (S) of pulverizing the clinker and mixing dihydrate gypsum to produce the solidifying raw material.3. The method of claim 1 , wherein the additional material comprises limestone; and an iron oxide.4. The method of claim 3 , wherein the additional material further comprises an alkali flux.5 ...

Arrangement and Method for Detaching an Adhering Charge From an Inner Wall of a Grinding Tube

An arrangement and method for detaching an adhering charge from an inner wall of a grinding tube, wherein the grinding tube is rotated backwards in a drive-free manner from a pre-determinable, assumed rotary position by the weight force of the adhering charge, where at least one movement state variable of the grinding tube is detected and the grinding tube is braked while being rotated back in dependence on the at least one detected movement state variable in order to detach the adhering charge from the inner wall of the grinding tube, and where the arrangement includes a detecting device, a drive unit, a braking device and a control device. 115.-. (canceled)16. A method for releasing an adhering charge from an inner wall of a grinding tube , the method comprising:rotating the grinding tube backwards from a pre-determinable rotational position adopted by said grinding tube, with no drive, due to a weight force of the adhering charge, at least one movement state variable of the grinding tube being detected; andbraking the grinding tube, during the backwards rotation, as a function of the at least one movement state variable which has been detected to release the adhering charge from the inner wall of the grinding tube.171. The method as claimed in claim , wherein the pre-determinable rotational position which is adopted is reached by a driven rotation , for which a drive facility of the grinding tube is utilized.181. The method as claimed in claim , wherein the pre-determinable rotational position of the grinding tube which is adopted is pre-determined as a rotational angle determined as a function of a characteristic of the charge.191. The method as claimed in claim , wherein the pre-determinable rotational position of the grinding tube which is adopted is pre-determined as a rotational angle with a magnitude of between 40° and 90° starting from a stable position of equilibrium.201. The method as claimed in claim , wherein the at least one movement state variable ...

PROCESS AND INSTALLATION FOR PRODUCTION OF CLINKER AND ELECTRICITY, AND PROCESS FOR MODIFICATION OF A PRODUCTION INSTALLATION OF CLINKER

A process and an installation for production of clinker and electricity, and a process for modifying a production installation of clinker are presented. 1. A process for production of clinker and electricity , comprising:introducing a raw meal, fuel and a combustion agent, in at least two precalciners positioned in parallel;precalcining the raw meal at a temperature of from 750 to 950° C., in order to obtain precalcination flue gases and a precalcined raw meal;treating the precalcination flue gases and the precalcined raw meal towards respective cyclones, in order to obtain precalcination flue gases and a precalcined raw meal;clinkerising the precalcined raw meal, in order to obtain clinker;producing steam, by transmission of heat from at least one part of the flue gases coming from at least one secondary precalciner and the corresponding cyclone;producing electricity from the steam, using an electricity generator comprising a steam turbine and steam generator;varying the feed rate of raw meal and/or the flow rate of fuel and/or the flow rate of combustion agent in at least one secondary precalciner, to vary the quantity of electricity produced, andintroducing into at least one secondary precalciner, a flow of a dilution flue gas, this the flow being formed from one part of the precalcination flue gases having already transmitted their heat, wherein the precalcination flue gases coming from the at least one secondary precalciner and the corresponding cyclone are diluted, before transmitting their heat, to obtain diluted precalcination flue gases, with a fraction of the precalcination flue gases having already transmitted their heat.2. The process according to claim 1 , wherein the raw meal is introduced for a first part into a main precalciner claim 1 , and for another part into at least one secondary precalciner claim 1 , and wherein only the precalcination flue gases claim 1 , coming from the claim 1 , or from each secondary precalciner and corresponding cyclone ...

SEALING DEVICE, IN PARTICULAR FOR A SHAFT INSERTED TRANSVERSELY IN A VESSEL OF FLUIDS UNDER PRESSURE OR GRANULAR MATERIAL IN MOVEMENT

A sealing device for a vessel to achieve a fluid-tight seal in an aperture made in the lateral wall of said vessel, into which aperture a shaft is inserted. The sealing device comprises first sealing means disposed in contact with the shaft in the zone of said aperture, and second sealing means, comprising a containing body and a flexible connection element. The first sealing means comprise a plurality of sealing rings, disposed coaxial to the shaft and in contact with the latter, and a containing tube to contain the sealing rings. The lateral wall of the vessel comprises an interface flange. A closing flange is connected to the interface flange and to a flanged end of the containing body by means of attachment means and is positioned in contact with the containing tube and with the flexible connection element to keep the first sealing means in a determinate axial position with respect to the shaft. 1. A sealing device for a vessel suitable to contain fluids under pressure and/or granular material in movement , to achieve a fluid-tight seal in an aperture made in the lateral wall of said vessel , into which aperture a shaft is inserted in a through manner and with play , said sealing device comprising:first sealing means disposed in contact with said shaft in the zone of said aperture and configured to follow possible axial and flexional movements of said shaft, while still allowing a possible rotation of said shaft with respect to them and to said lateral wall,second sealing means, comprising at least a containing body and a flexible connection element and disposed in said aperture with a first part fixed to said lateral wall and a second part connected in sealed manner with said first sealing means to allow reciprocal movements of said first sealing means and said lateral wall,wherein said first sealing means comprise a plurality of sealing rings, disposed coaxial to said shaft and in contact with the latter, and a containing tube to contain said sealing rings and ...

REFRACTORY PROTECTIVE MATERIAL FOR CLINKER FURNACES, WHICH PREVENTS THERMOCHEMICAL ATTACK WITHOUT THE FORMATION OF ENCRUSTATION OR RINGS

The invention relates to a refractory material for use in different parts of rotary furnaces, having a composition of minerals defined as a percentage by weight of sintered mullite or andalusite or sintered alumina or fused alumina or electrocast alumina-zirconium of between 30 and 80%, a percentage by weight of silicon carbide of between 5 and 15%. The material is used as a lining in rotary furnaces, for the precalciner, the smoke chamber, the furnace inlet, the burning area, the safety area, the furnace outlet area and the cooler. 1. A protective refractory material for clinker kilns which prevents thermochemical etching without the formation of crusting or rings , of the type used in rotary kilns and particularly designed for use in different zones of said kiln , comprising a composition of minerals defined as a percentage by weight of a mineral selected from the group consisting of sintered mullite , andalusite , sintered alumina , fused alumina , electrofused alumina-zirconium and combinations thereof of between 30 and 80% , a percentage by weight of silicon carbide of between 5 and 60% , a percentage by weight of zirconium silicate of between 5 and 60% and a percentage of clay of between 5 and 15%.2. The protective refractory material for clinker kilns which prevents thermochemical etching without the formation of crusting or rings according to claim 1 , comprising a composition of minerals defined as a percentage by weight of sintered mullite or andalusite or sintered alumina or fused alumina or electrofused alumina-zirconium of between 30 and 80% claim 1 , a percentage by weight of zirconium silicate of between 5 and 60% and a percentage of clay of between 5 and 15%.3. The protective refractory material for clinker kilns which prevents thermochemical etching without the formation of crusting or rings according to comprising the use thereof as an inner lining in rotary kilns of the cement industry for the burning zone claim 1 , the safety zone claim 1 , the ...

METHOD FOR OPERATING CEMENT PLANT

There is provided a method for operating a cement plant capable of simultaneously optimizing both combustion in a calciner and a heat consumption rate. The method for operating a cement plant includes: feeding first fuel to a calciner; feeding second fuel for maintaining the inside at a burning temperature to a cement kiln along with combustion primary air, and introducing air for cooling cement clinker to a cooler; and feeding a part of the air as secondary air to the cement kiln, feeding as tertiary air to the calciner, and discharging the rest of the air from the cooler, wherein relation between a first oxygen concentration at an exhaust gas outlet of the calciner and a heat consumption rate determined by the first fuel and the second fuel, and relation between a second oxygen concentration at an exhaust gas outlet of the preheater and the heat consumption rate are beforehand obtained, and amounts of the secondary air and the tertiary air are adjusted such that both the first oxygen concentration and the second oxygen concentration fall within a range including values of the oxygen concentrations at which the heat consumption rate becomes at its minimum. 1. A method for operating a cement plant which includes a preheater that preheats a raw material , a calciner that calcines at least part of the raw material picked out of the preheater , a cement kiln that burns the raw material passed through the preheater and the calciner into cement clinker , and a cooler that cools the cement clinker discharged from the cement kiln , the method comprising: feeding first fuel in an amount required for calcining the introduced raw material to the calciner; feeding to the cement kiln , along with combustion primary air , second fuel in an amount required for maintaining an inside of the cement kiln at a burning temperature , and introducing air in a certain amount for cooling the cement clinker to the cooler; and feeding a part of the air as secondary air for assisting ...

REFRACTORY BRICKS AND METHODS OF MAKING THE SAME

A refractory brick including a refractory composition comprising, by weight based on total weight of the composition: 5% to 50% olivine; 3.5% to 35% magnesia-alumina spinel; optionally, 1% to 10% alumina; and the balance essentially magnesite and impurities. In certain non-limiting embodiments, the refractory brick can have a thermal conductivity of 2.6 W/(m·K) or less when tested at 1400° C., while maintaining a coefficient of thermal expansion of 12.6×10/° C. or less. 1. A refractory brick including a refractory composition comprising , by weight based on total weight of the composition:5% to 50% olivine;3.5% to 35% magnesia-alumina spinel;optionally, 1% to 10% alumina; andthe balance essentially magnesite and impurities.2. The refractory brick of claim 1 , wherein the olivine includes one selected from naturally occurring olivine and synthesized olivine.3. The refractory brick of claim 1 , wherein olivine content of the refractory composition is 20% to 24% claim 1 , by weight.4. The refractory brick of claim 1 , wherein magnesia-alumina spinel content of the refractory composition is 9.6% to 10% claim 1 , by weight.5. The refractory brick of claim 1 , wherein the magnesite of the refractory composition has an MgO content of 88% to 99% claim 1 , by weight.6. The refractory brick of claim 1 , wherein the magnesite of the refractory composition has a total lime and silica content of 0.7% to 10% claim 1 , by weight.7. The refractory brick of claim 1 , wherein the magnesite of the refractory composition comprises at least one material selected from dead-burned magnesite and fused magnesite.8. The refractory brick of claim 1 , wherein the refractory composition comprises claim 1 , by weight claim 1 , 5% to 5.2% alumina.9. The refractory brick of claim 8 , wherein the alumina of the refractory composition is sintered with the magnesite claim 8 , thereby forming additional magnesia-alumina spinel.10. The refractory brick of claim 1 , wherein the refractory composition ...

OXYFUEL CLINKER PRODUCTION WITHOUT RECIRCULATION OF THE PREHEATER EXHAUST GASES

Processes and plants for producing cement clinker, wherein no recirculation of preheater exhaust gases occurs and the ratio of solid fed in to exhaust gas in the preheater is set to greater than 1.0 kg of solid to gas. 119.-. (canceled)20. A process for producing cement clinker , comprising:preheating of a starting material to a calcination temperature,performing calcination of the preheated starting material in a calciner,firing of the calcined starting material in a rotary furnace to produce cement clinker,cooling of the cement clinker,introducing an oxygen-containing gas having a proportion of 15% by volume or less of nitrogen and a proportion of 50% by volume or more of oxygen into the calciner,wherein no gases from the rotary furnace are fed to the calciner,providing at least a first and a second cyclone preheater configured for preheating and connected to one another in a cascade-like manner,material transfer means and/or gas transfer means for transferring material between the cyclone preheaters, andwherein recirculation of the preheater exhaust gases does not occur, andwherein the ratio of starting material fed in relative to exhaust gas in said preheating step is set to greater than 1.3 kg of starting material to 1.0 kg of exhaust gas.21. The process of further comprising introducing oxygen-containing gas into the rotary furnace.22. The process of wherein the cyclone preheaters are multistage one-train or multitrain cyclone preheaters.23. The process of wherein the cyclone preheaters are two-train cyclone preheaters having from two to six stages.24. The process of wherein crossing of meal streams but no crossing of the gas streams occurs after each stage between the cyclone preheaters of a multitrain cyclone preheater.25. The process of wherein preheating occurs with involvement of at least one carbonator.26. The process of wherein a cyclone preheater having a carbonator of a second preheater train is supplied with exhaust gases coming from the rotary ...

FLUIDIZED CALCINER

The present invention provides a fluidized calciner which can perform sufficient calcination by reducing a rate of unburned fuel at an outlet of the fluidized calciner while preventing occlusion in a preheater. In the present invention, plural pulverized coal blowing lines (), raw material chute () of cement raw material, and first to fourth air introduction pipes (to ) are connected to a bottom side wall of a tubular furnace body () whose upper end portion is closed by a top plate (); a fluidizing air blowing port () adapted to blow in fluidizing air is disposed at a bottom of the furnace body (); an exhaust gas duct () is connected to a top side wall of the furnace body located above the first and/or second air introduction pipes () by being spaced away from the top plate (); and blowing ports () of the pulverized coal blowing lines are disposed below suction ports of respective air introduction pipes (to ) but above the fluidizing air blowing port (), and at least one of the blowing ports () is placed below the third or fourth air introduction pipe (or ). 1: A fluidized calciner , wherein:a plurality of pulverized coal blowing lines adapted to blow fuel into a furnace body cylindrical in shape, a raw material chute adapted to load cement raw material into the furnace body, and first to fourth air introduction pipes placed sequentially at intervals and adapted to provide introduced air into the furnace body are connected to a bottom side wall of the furnace body whose axis direction corresponds to an up-down direction and whose upper end portion is closed by a top plate;a fluidizing air blowing port adapted to blow fluidizing air into the furnace body is disposed at a bottom of the furnace body;an exhaust duct adapted to cause combustion gas in the furnace body containing cement raw material to flow out is connected to a top side wall of the furnace body located above the first and/or second air introduction pipes by being spaced away from the top plate;blowing ...

TRACTION MACHINE ASSEMBLY AND ELEVATOR

The present application provides a tractor assembly and an elevator. The tractor assembly includes: a traction sheave, having a traction means fitting surface and a first transmission surface on a peripheral surface thereof; a plurality of support wheels, configured to support the traction sheave, and each having a second transmission surface on a peripheral surface thereof; and support wheel bases, configured to support the support wheels through support shafts, wherein the first transmission surface of the traction sheave is in transmitting cooperation with the second transmission surfaces of the plurality of support wheels respectively. According to the tractor assembly and elevator of the present application, the support wheels are disposed to achieve the transmitting cooperation of the traction sheave during operation of the elevator and support the traction sheave, thus omitting the load and drive bearings required by a conventional traction sheave. Therefore, not only the weight of the unit is reduced, but also the reserved hollow part of the traction sheave increases the area of ventilation, thus improving the heat dissipation effect of the rotor winding of the traction unit. In addition, this structure is also easy to disassemble/assemble and maintain. 1. A tractor assembly , comprising:a traction sheave, having a traction means fitting surface and a first transmission surface on a peripheral surface thereof;a plurality of support wheels, configured to support the traction sheave, and each having a second transmission surface on a peripheral surface thereof; andsupport wheel bases, configured to support the support wheels through support shafts,wherein the first transmission surface of the traction sheave is in transmitting cooperation with the second transmission surfaces of the plurality of support wheels respectively.2. The tractor assembly according to claim 1 , wherein the plurality of support wheels are respectively arranged below the traction sheave ...

OXY-CALCINATION PROCESS

Method and installation for calcining cement raw meal in a calciner whereby fuel and a calciner oxidant having an oxygen content of at least 30% vol are introduced into the calciner so as to generate either an oxidant-lean zone or a fuel-lean zone in the calciner located between the lowermost fuel inlet level and the lowermost oxidant inlet level of the calciner, between 50% and 100% by weight of the raw meal being supplied to the calciner upstream of and/or within the oxidant-lean, respectively the fuel-lean zone. 1. A calcination installation for calcining cement raw meal , the installation comprising a calciner having a total calciner height and extending between a bottom end and a top end in a longitudinal direction , the calciner comprising: a lowermost fuel inlet level at which one or more first fuel inlets are located;', 'a flue gas outlet located at the top end of the calciner;', 'a flue-gas recycle inlet located at the bottom end of the calciner; and', the lowermost oxidant inlet level is located above the lowermost fuel inlet level at an oxygen-lean zone distance Do>0 from said lowermost oxidant inlet in the longitudinal direction, at least one raw meal inlet being located below or at the lowermost oxidant inlet level in the longitudinal direction, or', 'the lowermost fuel inlet level is located above the lowermost oxidant inlet level at a fuel-lean zone distance Df>0 from the lowermost oxidant inlet level in the longitudinal direction, at least one raw meal inlet being located below or at the lowermost fuel inlet level in the longitudinal direction., 'one or more raw meal inlets, wherein], 'a lowermost oxidant inlet level at which one or more first oxidant inlets are located, and optionally one or more second oxidant inlet levels located above the lowermost oxidant inlet level in the longitudinal direction and at which one or more second oxidant inlets are located, said first oxidant inlets and, if present, said second oxidant inlets being connected to a ...

EXPANSION CONSTRAINT ASSEMBLY AND RELATED METHODS

An expansion constraint assembly can be attached to the exterior of a kiln cylinder. The expansion constraint assembly may include an outer constraining structure, an inner circular structure, and support structures extending between the inner circular structure and the outer constraining structure. The support structures may extend at an offset angle away from a radial direction of the outer constraining structure. The expansion constraint assembly may also include additional rings disposed between the inner circular structure and the outer constraining structure. The expansion constraint assembly can constrain asymmetric expansion of the kiln cylinder, for example, by relieving uniform expansion as a rotational shift, while restraining asymmetric expansion via tensile and compressive stresses in inter-connecting members. 1. A rotary kiln system , comprising:a rotator;a heating system; a central axis;', 'an exterior kiln cylinder surface;', 'a cross-sectional thickness urged toward variable expansion in a radial direction of the kiln cylinder and responsive to a variable thermal profile resulting from heat provided within the kiln cylinder by thermal actions or reactions of material being processed or from the heating system;', 'a collar axially aligned with the central axis and receiving at least one portion of the kiln cylinder; and, 'a kiln cylinder rotatable by the rotator, the kiln cylinder in communication with the heating system to provide heat into the kiln cylinder, the kiln cylinder comprising an outer constraining structure; and', 'a plurality of support structures, each extending between an interior of the outer constraining structure and the exterior kiln cylinder surface, each arranged at an offset angle away from the radial direction of the outer constraining structure, and each anchored to the exterior kiln cylinder surface and the outer constraining structure., 'an expansion constraint assembly axially aligned with the central axis and disposed ...

MANUFACTURING A BINDER WITH HIGH B BELITE CONTENT

The present invention relates to a method for manufacturing a binder with high β belite content comprising the steps: 1. A method for manufacturing a binder with β belite content of at least 20% by weight comprising the steps:a) providing a starting material by selecting one raw material having a Ca/Si molar ratio of 1.5 to 2.5 or by mixing two or more raw materials to obtain a starting material with the Ca/Si molar ratio of 1.5 to 2.5;b) hydrothermal treatment of the starting material produced in step a) in an autoclave at a temperature of 100 to 300° C. and a retention time of 0.1 to 24 h, wherein the water/solid ratio is from 0.1 to 100 to provide an intermediate product;c) annealing the intermediate product obtained in step b) in a flash calciner at 620 to 630° C., wherein the retention time is 1-30 seconds.2. The method according to claim 1 , wherein the molar ratio of calcium to silicon in the starting material is 2±10%.3. The method according to claim 1 , wherein primary and/or secondary raw materials are used to provide the starting material claim 1 , the primary and/or secondary raw materials being selected from the group consisting of quartz claim 1 , sand claim 1 , gravel claim 1 , limestone claim 1 , portlandite (Ca(OH)) claim 1 , burnt lime claim 1 , unburnt lime claim 1 , silicious fly ash claim 1 , calcareous fly ash claim 1 , and grain fractions from the reprocessing of cement-containing binders in building materials claim 1 , and mixtures thereof.4. The method according to claim 1 , wherein the raw material(s) is(are) are optimised with respect to particle size and particle size distribution by mechanical or thermal treatment.5. The method according to claim 1 , wherein additional elements claim 1 , also in the form of compounds claim 1 , are added in an amount from 0.1 to 30% by weight to the raw material or during the mixing of the raw materials claim 1 , for hydrothermal treatment or for annealing.6. The method according to claim 1 , wherein the ...

ARCH BRICK, CYLINDRICAL INTERNAL LINING OF A ROTARY KILN AND ROTARY KILN

The invention relates to an arch brick in accordance with DIN 1082-4, edition January 2007, a cylindrical inner lining of a rotary kiln, which lining comprises these arch bricks, and a rotary kiln with such lining and such arch bricks. 110122. An arch brick in accordance with DIN 1082-4 , edition January 2007 , which is separated into two discrete brick parts ( , ) along at least one separation plane (TF) , which extends from base (AG) to a front face (TS) or a further base (IG).2. The arch brick according to claim 1 , the separation plane (TF) of which extends by an angle ≧20 degrees to said base (AG).3. The arch brick according to claim 1 , the separation plane (TF) of which extends by an angle ≦75 degrees to said base (AG).4. The arch brick according to claim 1 , the separation plane (TF) of which extends by an angle ≦60 degrees to said base (AG).5101212. The arch brick according to claim 1 , with at least one brick part ( claim 1 , ) having two opposed surfaces (RS* claim 1 , RS*) claim 1 , each of trapezoidal shape.6101212. The arch brick according to claim 1 , with at least one brick part ( claim 1 , ) having two opposed surfaces (RS* claim 1 , RS*) claim 1 , each of triangular shape.7101212. The arch brick according to claim 1 , with at least one brick part ( claim 1 , ) having two opposed surfaces (RS* claim 1 , RS*) claim 1 , each of pentagonal shape.812. The arch brick according to wherein the opposed surfaces (RS* claim 5 , RS*) are identical.9. The arch brick according to claim 1 , which separation plane (TF) being planar.1030. Cylindrical inner lining () of an industrial rotary kiln with the following features:{'b': '30', 'a) the lining () extends between a kiln entrance (OE) at a first end of the rotary kiln and a kiln exit (OA) at a second end of the rotary kiln,'}{'b': 30', '30', '30, 'i': a', 'z, 'b) the lining () is substantially made of ring-like segments (. . . ) arranged one behind the other, wherein'}{'b': 30', '1', '2, 'i': 'w', 'claim-ref': ...

BEARING ASSEMBLY AND PARABOLIC-TROUGH SOLAR POWER PLANT HAVING SUCH A BEARING ASSEMBLY

A parabolic-trough solar power plant includes at least one solar panel that has a shaft part supported by at least one bearing assembly configured to pivot the solar panel through a pivot angle about the longitudinal axis. The bearing assembly includes a support element with two support sections and a space therebetween, a chain element supported by the support sections, and a plurality of roller elements supported in the chain element along its longitudinal extension for rotation about an axis of rotation parallel to the longitudinal axis. Ends of the chain element are attached to the support sections by bearings that permit pivoting of the chain element relative to the support sections about a compensation axis horizontal, and in projection, perpendicular to the longitudinal axis of the shaft part. The roller elements are disposed at hinge points between pairs of the links in the chain. 1. A parabolic-trough solar power plant comprising at least one solar panel having a shaft part having a longitudinal axis , the shaft part being supported by at least one bearing assembly , wherein the bearing assembly is configured to pivot the solar panel through a pivot angle range about the longitudinal axis wherein the bearing assembly comprises:a support element, which includes two vertically extending support sections, wherein a receiving space for receiving the shaft part is formed between the two support sections,a chain element that is supported with its two ends in the upper end region of the support section,a plurality of roller elements, which are supported in the chain element along its longitudinal extension, wherein the roller elements are supported in the chain element about an axis of rotation parallel to the longitudinal axis, and wherein the roller elements are configured to support a circumferential section of a shaft section of the shaft part,wherein the upper ends of the chain element are each attached to the support section by a bearing, and the bearing ...

METHOD FOR DENITRIFICATION OF BYPASS EXHAUST GASES IN A PLANT FOR PRODUCING CEMENT CLINKER

Denitrifying bypass exhaust gases in a cement clinker producing plant. The plant comprises a rotary kiln connected to a calciner for the deacidification of raw material or to a rotary kiln riser shaft via a rotary kiln inlet chamber, and the bypass exhaust gas being drawn off in the region of the rotary kiln inlet chamber. The method comprises: cooling the bypass gas to between 260 C and 400 C in a cooling device, injecting an ammonia-, urea-, and/or ammonium-containing substance into the cooled bypass gas, introducing the cooled and mixed bypass gas into a ceramic filter system to filter out any halide and sulfate of the alkali metals and alkaline-earth metals precipitated during cooling the gas, and any nitrogen not reacted by the injected substances is chemically selectively reduced over a catalytic converter which is located in or directly downstream of the ceramic filter system. 110-. (canceled)11. A process for the denitrification of bypass exhaust gases in a plant for producing cement clinker ,where the plant has, in the gas flow direction, a rotary tube furnace upstream of a calciner for sintering of the cement clinker, andwhere the rotary tube furnace is connected via a rotary tube furnace inlet chamber to the calciner for deacidification of raw meal or to a rotary tube furnace riser shaft, andwhere the bypass exhaust gas is taken off in the region of the rotary tube furnace inlet chamber, comprising the steps:cooling the bypass exhaust gas to a temperature in the range from 260° C. to 400° C. in a cooling apparatus, 'where the at least one of the ammonia, the urea or the ammonium at least partially converts the free-radical gas constituents present in the cooled bypass gas into non-free-radical gas constituents by at least one of hydrolysis, partial oxidation, or partial reduction,', 'injecting at least one of an ammonia-, urea- or ammonium-containing substance into the cooled bypass exhaust gas,'} a) at least one of lithium fluoride, lithium chloride, ...

AMORPHOUS LOW-CALCIUM CONTENT SILICATE HYDRAULIC BINDERS AND METHODS FOR THEIR MANUFACTURING

The invention relates to a hydraulic binder consisting essentially in a hydraulically active amorphous calcium silicate phase, having in its constitution less than 20% in weight of a crystalline material. The said hydraulically active amorphous calcium silicate phase is a continuous matrix that may contain embedded fractions of crystalline material, being the overall C/S molar ratio of this hydraulic binder comprised between 0.8 and 1.25. The crystalline fraction of this material is essentially composed by wollastonite in both of its polymorphic structures, α and β. Furthermore, the invention relates to methods of producing the hydraulic binder by liquefying the raw materials, in a specified C/S molar ratio, followed by fast cooling to room temperature. Finally, the invention relates to a building material made by setting the binder or a mixture containing this binder with water and subsequent hardening. The invention enables the production of a hydraulic binder with a significant reduction of CO2 emissions, when compared to OPC clinker, by reducing the amount of limestone in the raw materials while obtaining competitive overall values of compressive strength of the hardened material. 1. A hydraulic binder comprising in a continuous amorphous calcium silicate matrix containing less than 20% in weight of a wollastonite crystalline phase in any of its a or 3 polymorphs , with an overall C/S molar ratio in the range from 0.8 to 1.25.2. The hydraulic binder of any of claim 1 , wherein a part of the calcium or silicon of the hydraulically active amorphous silicate phase is substituted by a metal selected from Al claim 1 , Fe claim 1 , Mgr B claim 1 , S claim 1 , P claim 1 , K claim 1 , Na claim 1 , or any combination thereof claim 1 , in particular from 1% to 20%.3. A mixture containing at least 10% in weight of the hydraulic binder of and wherein a part of the calcium or silicon of the hydraulically active amorphous silicate phase is substituted by a metal selected from ...

Equipment for measurement and control of load material fed into a furnace

A system and equipment to measure and control the feeding of load material into an electrical arc furnace (EAF) includes an automatic control device feeding the load material; a measuring device positioned between the EAF and the tilting platform that includes an upper plate adapted to slide against the EAF, a lower plate engaged to the tilting platform, and a ring structure therebetween having a peripheral ring wall, a ring plate extending across the ring structure, and a contact member coupled to the ring plate that upperly contacts the upper plate and lowerly approaches, without contacting the lower plate; and one or more sensors measuring a deformation of the ring plate upon application of a load on the upper plate. 1. Equipment to measure and control a load material fed into an electrical arc furnace (EAF) that rests on a tilting platform , the equipment comprising:an automatic control device feeding the load material according to energy supplied to a bath; anda measuring device for the load material, operatively coupled to the automatic control device, the measuring device weighing a shell of the EAF, contents thereof, and any other components supported by the shell,wherein the measuring device is adapted to be positioned between the EAF and the tilting platform and comprises:an upper plate having an upper surface adapted to slide against a lower surface of the EAF;a lower plate having a lower surface adapted to be engaged to the tilting platform; a peripheral ring wall with a longitudinal axis perpendicular to the upper and lower plates,', 'a ring plate coupled to an inner side of the ring wall and extending across the ring structure, and', 'a contact member coupled to the ring plate and extending along the longitudinal axis of the ring structure to upperly contact a lower surface of the upper plate and to lowerly approach, without contacting, an upper surface of the lower plate, and, 'a ring structure coupled to an upper surface of the lower plate and having ...

METHOD FOR PRODUCING CEMENTING MATERIALS PRODUCED FROM THE RECYCLING OF INDUSTRIAL WASTE FROM THE PROCESSES OF PRODUCING CERAMICS AND BRICKS

A method for producing a cementing material from the waste from the brick and ceramics industry is provided, the method being selecting the batches of waste from bricks and ceramics for a subsequent grinding, in which they should achieve a grain size of between 20 and 40 microns, and wherein this waste can be mixed together or used individually to be subsequently included in the cement in a proportion of up to 30%, wherein the mixtures can achieve designs of up to 4000 PSI. 1. A method for producing cementitious materials made from the recycling of industrial waste from the processes of production of ceramics and brick , comprising:a. selecting structural and nonstructural brick waste or byproducts, which have been fired at a temperature of between 500 and 1000° C.b. selecting ceramic parts waste, which have been fired at a temperature of between 700 and 1200° C.c. separately crushing the waste selected in steps a and b until obtaining particle sizes of between 10 and 80 microns.d. mixing crushed fines resulting from step c, from 40 to 60% of fines from brick waste and 40 to 60% of waste from ceramic parts.2. The method for producing cementitious materials made from the recycling of industrial waste from the processes of production of ceramics and brick according to claim 1 , wherein the material selected from steps a and b have a humidity of less than 1%.3. The method for producing cementitious materials made from the recycling of industrial waste from the processes of production of ceramics and brick according to claim 1 , wherein the cementitious material resulting from step d is incorporated into matrices of cement and/or concrete in a range from 0.5% to 40%. The present invention reveals a procedure for processing waste from the brick and ceramics industry, having the objective of the use thereof in the cement industry, entailing significant energy and economic saving in the related 15 industries, for example those of construction and infrastructure.The cement ...

Driving Arrangement For A Heavy-Duty Grinding Mill And Heavy-Duty Grinding Mill

Driving arrangement for a heavy-duty grinding mill () having a horizontal tube with a circumferential girth gear (), comprising a driving assembly, comprising a motor (); at least two engaging pinions () configured to engage the girth gear () for driving the grinding mill (); at least one gearbox () comprising an input shaft () for coupling the motor () with the at least one gearbox (), at least two output shafts () for coupling the gearbox () with the at least two engaging pinions () and a torque split arrangement being configured to transmit torque of the input shaft () to the at least two output shafts (); and at least one frame () for supporting the at least two engaging pinions () separate from the gearbox (), and a heavy-duty grinding mill. 15051. Driving arrangement for a heavy-duty grinding mill () having a horizontal tube with a circumferential girth gear () , comprising: [{'b': '10', 'a motor ();'}, {'b': 42', '44', '51', '50, 'at least two engaging pinions (, ) configured to engage the girth gear () for driving the grinding mill ();'}, {'b': 20', '22', '10', '20', '31', '32', '20', '42', '44', '22', '31', '32, 'at least one gearbox () comprising an input shaft () for coupling the motor () with the at least one gearbox (), at least two output shafts (, ) for coupling the gearbox () with the at least two engaging pinions (, ) and a torque split arrangement being configured to transmit torque of the input shaft () to the at least two output shafts (, ); and'}, {'b': 48', '42', '44', '20, 'at least one frame () for supporting the at least two engaging pinions (, ) separate from the gearbox ().'}], 'a driving assembly, comprising224252322262728293132. Driving arrangement of claim 1 , wherein the torque split arrangement comprises a torque split shaft () on which are arranged a torque split input pinion () directly engaging with an input pinion () on the input shaft () and two torque split output pinions ( claim 1 , ) directly engaging with an output pinion ( ...

Coated susceptor for a high-temperature furnace and furnace comprising such a susceptor

A high-temperature furnace (10) with a wall (1) or chamber defining an inner zone (8), said wall (1) or chamber comprising a refractory material, characterized in that said refractory material comprises molybdenum or a molybdenum compound being protected against oxygen in said inner zone (8) by means of a protective Silicon-Boron (Si-B) coating. Preferably the molybdenum has a purity of at least 99% and acts as a susceptor during induction heating. The furnace can be used for the treatment of waste, biomass, the roasting of ores or minerals, or the conversion of organic materials into synthetic gas.

High-temperature furnace with an oxygen-free infeed section and use of such a furnace

High-temperature furnace (10) for processing carbon-containing material such as biomass or waste in an inner zone (8) at a high-temperature. The furnace (10) comprises an in-feed side (20) for continuously feeding said carbon-containing material into said inner zone (8) and an output side (30) where a Syngas is provided. The infeed side (20) comprises an infeed section (23) providing for an atmosphere being essentially oxygen-free. There is gas inlet (22.1) at the infeed section (23) which is connected to the output side (30) with a feedback pipe for feeding some of said Syngas into said infeed section (23). The syngas provides preheating of the material and reduces corrosion risk in the high temperature zone.

Installation for producing diesel and cement comprises a nuclear power station, a water electrolysis plant, a cement works, a reverse water gas balanced reactor and a Fischer-Tropsch reactor

Installation for producing diesel and cement comprises a nuclear power station, a water electrolysis plant, a cement works, a reverse water gas balanced reactor and a Fischer-Tropsch reactor.

Seal and sealing method for temperature control chamber doors

A system for sealing a lower edge of a temperature control chamber door to a temperature control chamber housing when the door is closed has a pair of opposed radiused corners provided at opposed lower corners of the door opening, and a resilient seal member having opposed radiused corners substantially complimentary in shape to the radiused corners of the opening.

ROLL CONNECTION

A method and an equipment permitting to optimally handle and support a roll made of at least an inert material and transfer the torque from a bearing to a roll or the other way around without damaging them, the roll and bearing being immersed in molten metal. 18-. (canceled)9. A continuous hot dipping apparatus comprising:a tank including a bath of molten metal inside;a sink roll; andat least one guide roll; a first part connecting with the bushing,', 'a second part comprising at least one fastener attached to a side of the roll, and', 'a third part having a parallelepiped section with curved angles, the third part being inserted inside the at least one roll,', 'the connection part being made of a material having a higher thermal dilatation coefficient than the roll, the coefficient being chosen so that the third part and the roll are pressfitted through thermal dilatation when in the bath of molten metal., 'at least one of the sink roll and the at least one guide roll defining a roll being supported by a bearing, the bearing being composed of at least a connection part and a bushing, the connection part including three successive parts10. The apparatus as recited in wherein the roll is made of at least one carbon or ceramic matrix reinforced with carbon or ceramic fibers.11. The apparatus as recited in wherein the roll is made of two different carbon matrixes reinforced with carbon or ceramic fibers.12. The apparatus as recited in wherein the connection part is made of metal.13. The apparatus as recited in wherein the fastener is a screw.14. The apparatus as recited in wherein the t least one fastener includes at least three fasteners.15. A method for installing the roll in the apparatus as recited in where a temperature of the molten metal is defined as a temperature Tmolten metal claim 9 , the method comprising the following steps:inserting the third part of the connection part into the roll;fixing the connection part to the roll using the fastener;preheating the ...

Indirectly heated rotary kiln suitable for high temperatures comprises multiple barrels within a common furnace

An indirectly heated rotary kiln suitable for temperatures above 1100[deg]C has multiple rotary barrels (4), at least in part constructed of high temperature resistant refractory material e.g. silicon carbide, and enclosed within a heating enclosure (7). The kiln barrels may be horizontal or inclined and may have their charging and discharge ends extending outside of the heating enclosure.

Rotating radial cyclinder having peripheral surface

내용없음. None.

Способ обжига цементного клинкера и устройство дл его осуществлени

Method and plant for manufacturing cement clinker

시멘트 크링커 제조 방법 및 설비에 관한 것으로서, 상기 방법은 시멘트 원료 밀을 예열기(1)내에서 예열하고, 상단부(3a) 및 하단부(3b)를 포함하는 하소로(3)내에서 하소시키며, 킬른로(5)내에서 크링커로 연소시키며, 그리고 이어지는 크링커 냉각기(7)내에서 냉각시킨다. 본 발명은 상기 킬른로(5)로부터의 배기 가스가 상기 하소로의 상단부(3a)내로 유입되고, 유사하게 연료가 하소로의 상단부(3a)내로 유입되며, 배기 가스/연료 현탁물질이 하소로(3)를 통해 아래쪽으로 배향되며, 크링커 냉각기(7)로부터의 예열된 공기 및 예열기로(1)부터의 예열된 원료 밀이 조합되어 또는 독립적으로 킬른로로부터의 배기 가스 및 연료가 유입되는 영역 아래의 위치에서 하소로(3)내로 공급되고, 예열된 공기가 하소로(3)를 통해 하향 배향되고 배기 가스/연료 현탁물질과 점차적으로 혼합되며, 중력의 작용으로 원료 밀이 하소로(3)의 벽을 따라 하향되고 하소로의 하단부(3b)에서 배기 가스내에 현탁되며, 배기 가스/원료 밀 현탁물질이 하소로의 하단부(3b)로부터 인출되고 킬른로로 향하게되는 원료 밀을 분리하기 위한 분리 수단으로 이송되는 것을 특징으로 한다. 그에 따라, 킬른로 배기 가스와 함께 하소로내로 도입되는 NO x 를 상당량 감소시키고, 휘발성 성분의 함량이 낮은 연료를 이용하는 경우에도 높은 연료 연소 효과를 얻을 수 있으며, 연료와 함께 하소로내로 도입되는 질소가 NO x 로 변환되는 정도도 감소시킨다. A method and apparatus for manufacturing a cement clinker, the method preheating a cement raw mill in a preheater (1), calcining in a calcination furnace (3) comprising an upper end (3a) and a lower end (3b), and a kiln furnace In (5) with a clinker, followed by cooling in a clinker cooler (7). The present invention allows the exhaust gas from the kiln furnace 5 to flow into the upper end 3a of the calcination furnace, similarly the fuel flows into the upper end 3a of the calcination furnace, and the exhaust gas / fuel suspending material to the calcination furnace. Oriented downward through (3), where the preheated air from the clinker cooler 7 and the preheated raw mill from the preheater are combined or independently enter the exhaust gas and fuel from the kiln furnace The preheated air is oriented downwardly through the calcination furnace 3 and gradually mixed with the exhaust gas / fuel suspending material at the following position, and the action of gravity causes the raw mill to be calcined (3). To separate the raw mill which is lowered along the wall of the furnace and suspended in the exhaust gas at the lower end 3b of the calcination furnace, and the exhaust gas / raw mill suspending material is withdrawn from the lower end 3b of ...

一种减速电机直连的全方位行星式球磨机

本发明涉及一种减速电机直连的全方位行星式球磨机，包括机架、行星电机、传动减速机、传动轴、行星轴承、转架、研磨罐、翻转电机、翻转减速机、翻转轴和翻转轴承，行星电机固定在机架下端的旋转90度的中字型固定架上，传动减速机输出轴穿过机架下端的底板座与传动轴底端相连接，传动轴顶端穿过机架上端的正八边形安装平台与转架相连接，研磨罐固定在转架上，翻转电机主轴与翻转减速机输入轴相连接，翻转减速机输出轴与翻转轴一端相连接，翻转轴另一端与机架侧端相连接。本发明利用减速机的特有结构和原理，将原来的附加拉力和偏心力减少，同时能够减少尺寸，从而达到减少磨损、降低噪音和增加使用寿命的效果。

Cement kiln with alternative fuel gasification combustion device

본 발명은 플라즈마 연소시스템을 이용하여 버려지는 폐플라스틱의 열분해를 통하여 가스화 및 연소시키는 것으로 시멘트 소성로에 부속된 예열탑에 추가적인 열원을 공급하여 연료 사용량을 저감할 수 있으며, 플라스틱 연소에 따른 유해가스 및 타르 발생 저감으로 연속적이고 경제적인 운영이 가능한 대체연료 가스화 연소 장치를 포함하는 시멘트 소성로에 관한 것이다. 본 발명은 (a) 연소반응기; (b) 상기 연소반응기에 플라즈마를 공급하는 4개 이상의 플라즈마 연소수단; (c) 상기 연소반응기의 상반부에 연결되어 상기 연소반응기 방향으로 폐플라스틱을 공급하는 연료공급수단을 포함하는 대체연료 가스화 장치를 포함하는 시멘트 소성로를 제공한다. The present invention uses a plasma combustion system to gasify and burn waste plastic through pyrolysis, and it is possible to reduce fuel consumption by supplying an additional heat source to a preheating tower attached to a cement kiln, and harmful gases and It relates to a cement kiln comprising an alternative fuel gasification combustion device capable of continuous and economical operation by reducing tar generation. The present invention is (a) a combustion reactor; (b) four or more plasma combustion means for supplying plasma to the combustion reactor; (c) provides a cement kiln comprising an alternative fuel gasifier connected to the upper half of the combustion reactor and including a fuel supply means for supplying the waste plastic in the direction of the combustion reactor.

Способ и установка для производства цементного клинкера

Изобретение относится к производству цементного клинкера. Способ производства цементного клинкера включает подогрев цементной сырьевой смеси в подогревателе, прокаливание в кальцинаторе, включающем верхнюю часть и нижнюю часть, обжиг в клинкер в обжиговой печи и охлаждение в охладителе клинкера. Отходящие газы обжиговой печи и топливо вводят в верхнюю часть кальцинатора, суспензию из отходящего газа и топлива направляют вниз через кальцинатор. Подогретый воздух из охладителя клинкера и подогретую сырьевую смесь из подогревателя, вместе или по отдельности, вводят в кальцинатор на участке, расположенном под зоной введения отходящих газов обжиговой печи и топлива. Подогретый воздух направляют вниз по кальцинатору, причем он постепенно смешивается с суспензией из отходящего газа и топлива. Сырьевая смесь под действием силы тяжести движется вниз вдоль стенки кальцинатора, переходя в суспензию в отходящих газах в нижней части кальцинатора. Суспензию из отходящего газа и сырьевой смеси удаляют из нижней части кальцинатора и перемещают в средства разделения для отделения сырьевой смеси, которую затем направляют в обжиговую печь. Охарактеризована установка для реализации этого способа. Технический результат: повышение полноты сгорания топлива при использовании топлива с низким содержанием летучих компонентов, снижение уровня выбросов NO x . 2 н. и 11 з.п. ф-лы, 1 ил. ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (51) ÌÏÊ 7 (11) 2 263 083 (13) C2 C 04 B 7/43, F 27 B 7/20 ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÎÏÈÑÀÍÈÅ ÈÇÎÁÐÅÒÅÍÈß Ê ÏÀÒÅÍÒÓ (21), (22) Çà âêà: 2003103090/03, 19.07.2001 (72) Àâòîð(û): ÑÊÎÐÓÏ ÉÅÍÑÅÍ Ëàðñ (DK), ÒÎÌÑÅÍ Êåíò (DK) (24) Äàòà íà÷àëà äåéñòâè ïàòåíòà: 19.07.2001 (30) Ïðèîðèòåò: 24.08.2000 DK PA200001253 (73) Ïàòåíòîîáëàäàòåëü(ëè): Ô.Ë. ÑÌÈÒÒ À/Ñ (DK) R U (43) Äàòà ïóáëèêàöèè çà âêè: 20.12.2004 (45) Îïóáëèêîâàíî: 27.10.2005 Áþë. ¹ 30 2 2 6 3 0 8 3 (56) Ñïèñîê äîêóìåíòîâ, öèòèðîâàííûõ â îò÷åòå î ïîèñêå: US 4014641 A, 29.03. ...

Production of cement clinker and plant to this end

FIELD: metallurgy. SUBSTANCE: proposed plant comprise rotary furnace 1, cyclone heater 2 whereto fed are flue gases from rotary furnace, clinker cooler 4 arranged at rotary furnace 1 and at least one heat exchanger 9. Damp stock is heated to remove carbon dioxide in cyclone heater and to cool clinker fed from furnace in cooler 4. First portion 5 of hot air produced in clinker cooler, referred to as secondary hot air, is directed into rotary furnace to use as combustion air. Second portion 6 of said hot air referred to as tertiary hot air is directed separately from said first portion in the plat combustion zone. Third portion 7 of said air referred to as excess hot air generated in hot air clinker cooler is directed to first heat exchanger 9 for power recuperation for electric power production. Second hear exchanger 10 interacts with tertiary hot air 6 to heat working fluid in circuit 13 shared by first and second heat exchangers 9, 10. EFFECT: higher efficiency of power recuperation at minimum fuel consumption. 23 cl, 3 dwg, 4 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 502 030 (13) C2 (51) МПК F27D 17/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2010153610/02, 02.06.2009 (24) Дата начала отсчета срока действия патента: 02.06.2009 (72) Автор(ы): ДЕВРЁ Себастьян (FR), МЕТИВЬЕ Симон (FR) (73) Патентообладатель(и): ФИВ ФСБ (FR) R U Приоритет(ы): (30) Конвенционный приоритет: 03.06.2008 FR 08/03050 (43) Дата публикации заявки: 20.07.2012 Бюл. № 20 2 5 0 2 0 3 0 (45) Опубликовано: 20.12.2013 Бюл. № 35 (56) Список документов, цитированных в отчете о поиске: ЕР 0045811 А1, 17.02.1982. ЕР 0492133 A1, 01.07.1992. CN 1601214 A, 30.03.20056. SU 115842 A, 01.01.1958. 2 5 0 2 0 3 0 R U (86) Заявка PCT: FR 2009/000636 (02.06.2009) C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 11.01.2011 (87) Публикация заявки РСТ: WO 2009/156614 (30.12.2009) Адрес для переписки: 109012, Москва, ул. ...

Method to produce cement clinker and plant to produce cement clinker

FIELD: construction. SUBSTANCE: plant comprises a cyclone heater (3, 3 a ), a prebaking reactor (4), a rotary furnace (1), a clinker cooler (5). According to the invention, fumes produced by the rotary furnace and heater gases are separated so that they are not mixed. Into the prebaking reactor gas is supplied with high content of oxygen, and some (8 a ) gases (8), leaving the cyclone heater (3, 3 a ), are recirculated into the prebaking reactor (4) and even into the cyclone heater (3, 3 a ), in order to produce the appropriate flow required to get suspended condition of raw materials in the heater. The other non-recirculated part (8 b ) of gases with high content of carbon dioxide is adapted, making it possible to limit CO 2 emissions into atmosphere, with the help of treatment, such as complexing. EFFECT: method improvement. 15 cl, 2 dwg, 2 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 498 182 (13) C2 (51) МПК F27D 17/00 (2006.01) F27B 7/20 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2011107735/02, 17.07.2009 (24) Дата начала отсчета срока действия патента: 17.07.2009 (72) Автор(ы): ЖОРЖЕ Серж (FR), ДЕВРЁ Себастьян (FR) (73) Патентообладатель(и): ФИВ ФСБ (FR) R U Приоритет(ы): (30) Конвенционный приоритет: 01.08.2008 FR 08/04407 (43) Дата публикации заявки: 10.09.2012 Бюл. № 25 2 4 9 8 1 8 2 (45) Опубликовано: 10.11.2013 Бюл. № 31 (56) Список документов, цитированных в отчете о поиске: ЕР 1923367 А, 21.05.2008. DE 3010909 A1, 01.10.1981. RU 2248946 C2, 27.03.2005. RU 2136622 C1, 10.09.1999. 2 4 9 8 1 8 2 R U (86) Заявка PCT: FR 2009/000884 (17.07.2009) C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 01.03.2011 (87) Публикация заявки РСТ: WO 2010/012881 (04.02.2010) Адрес для переписки: 109012, Москва, ул. Ильинка, 5/2, ООО "Союзпатент" (54) СПОСОБ ПОЛУЧЕНИЯ ЦЕМЕНТНОГО КЛИНКЕРА И УСТАНОВКА ДЛЯ ПРОИЗВОДСТВА ЦЕМЕНТНОГО КЛИНКЕРА циклонного подогревателя (3, 3а), рециркулируют в ...

Roasting plant and process for making cement

FIELD: manufacture of building materials, namely production of cement. SUBSTANCE: at making cement raw material is subjected to preliminary heating and then it is subjected at least to partial roasting in roasting chamber. In upper central portion of said chamber burner is mounted. Raw material is fed to roasting chamber through tangential inlet port in the form of suspension in hot gas supplied from cooler. Partially roasted material is discharged from lower portion of roasting chamber through connection assembly to roasting furnace. Suspended in gas material is discharged out of roasting chamber to cyclone separator for separating gas and solid material. Waste gases from rotary furnace are fed to roasting furnace through second pipe. Height of upper portion of inner space of roasting chamber (h1-h2) arranged between tip of burner and upper edge of tangential inlet port (being the most upper point of hot gas supply from cooler) is equal at least to 1/3D, where D -diameter of cylinder with height h1-h2 and with volume equal to that of upper portion of roasting chamber. Height of lower portion of inner space of roasting chamber h3-h4 arranged between lower edge of tangential inlet port and discharge opening of roasting chamber (being the most low point of hot gas supply from cooler) is equal at least to D. Such plant allows to use in roasting zone of furnace fuel with low reaction capability such as oil coke and coal with small gas content. EFFECT: simplified design, enhanced efficiency. 8 cl, 2 dwg Эээ гс ПЧ ГЭ РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) ВИ "” 2181 866. (51) МПК? 13) С1 Е 27 В 15/00, С 04В 7/43 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 2000122903103, 26.01.1999 (24) Дата начала действия патента: 26.01.1999 (30) Приоритет: 04.02.1998 ОК 0153/98 (46) Дата публикации: 21.04.2002 (56) Ссылки: МО 97/30003 АЛ, 21.08.1997. $ ТОЗ7ТЗ7 А, 23.04.1984. 5Ц 1618089 АЛ, 21.08.1995. ЕР 0103423 А\Л, 21.03.1984. Ц$ 4014641 ...

一种回转炉

本申请公开了一种回转炉，包括滚筒，滚筒的进料端高于滚筒的出料端，还包括：进料装置，与滚筒的进料端转动密封连通；出料装置，与滚筒的出料端转动密封连通；驱动装置，设置于滚筒的外部，用于驱动滚筒绕其转动轴线往复摆动；支撑装置，设置于滚筒的外部，用于转动支撑滚筒；控制装置，与驱动装置通过导线连接，用于控制滚筒的往复摆动的弧度。由于滚筒只在一定弧度内摆动，并不做单一方向旋转，因此，在滚筒外壁上能够设置用于工艺处理的装置或管道，且不会限制滚筒的摆动，更有利于物料的加热、冷却、反应等处理。

Chain for chain curtain of rotating furnace

FIELD: power industry. SUBSTANCE: in chain for chain curtain of rotating furnace, which consists of links of any geometrical shape, which are connected to each other, and which are hollow, inside body of each link there located is filler from low-melting materials or from quartz sand. EFFECT: intensification of heat exchange; increase of chain resistivity to break; reduction of metal consumption of heat-resistant steel in chain. 3 cl, 3 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 425 316 (13) C1 (51) МПК F28F 1/00 (2006.01) F27B 7/18 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2009140569/06, 02.11.2009 (24) Дата начала отсчета срока действия патента: 02.11.2009 (73) Патентообладатель(и): Зубачев Александр Сергеевич (RU), Серебряков Виктор Евгеньевич (RU), Жиренко Сергей Борисович (RU) (45) Опубликовано: 27.07.2011 Бюл. № 21 Адрес для переписки: 454092, г.Челябинск-92, а/я 9344, М.А. Угаеву геометрической формы, выполненных полыми, внутри тела каждого звена расположен наполнитель из легкоплавких материалов или из кварцевого песка. Техническим результатом изобретения является: интенсификация теплообмена; повышение сопротивляемости цепи разрыву; снижение металлоемкости жаростойкой стали в цепи. 2 з.п. ф-лы, 3 ил. R U 2 4 2 5 3 1 6 (57) Реферат: Изобретение относится к области теплообменных устройств, в частности к цепным завесам для вращающихся печей промышленности строительных материалов. Изобретение заключается в том, что в цепи для цепной завесы вращающейся печи, состоящей из соединенных между собой звеньев любой Ñòð.: 1 ru C 1 C 1 (54) ЦЕПЬ ДЛЯ ЦЕПНОЙ ЗАВЕСЫ ВРАЩАЮЩЕЙСЯ ПЕЧИ 2 4 2 5 3 1 6 (56) Список документов, цитированных в отчете о поиске: RU 2285217 C1, 10.10.2006. SU 905592 A1, 15.02.1982. DE 1925835 B1, 14.01.1971. DE 1483046 B1, 12.11.1970. R U Приоритет(ы): (22) Дата подачи заявки: 02.11.2009 (72) Автор(ы): Зубачев Александр Сергеевич (RU), Серебряков Виктор ...

Method of producing cement clinker

Изобретение относитс  к промышленности строительных материалов,преимущественно к производству цементного клинкера. Цель изобретени  - обеспечение регулировани  температуры в ветв х теплообменников. Сырьевой цементный материал через загрузочный трубопровод поступает сначала в узел теплообменника, из которого поток материала подаетс  в разгрузочный трубопровод теплообменника другой ветви дл  отход щих газов . Потоки сырьевого -материала попеременно проход т между узлами теплообменника ветвей дл  отход щих газов причем сырьевой материал ступенчато нагрева етс . После последней ступени предварительного нагрева в узле теплообменника поток сырьевого материала поступает через разгрузочный трубопровод в реактор, в котором материал декарбонизируетс . Из де- карбонизатора материал подаетс  обратно двум  раздельными потоками соответственно подаче отход щего газа и попадает через сепаратор на обжиг в печь. Обожженный клинкер охлаждаетс  в холодильнике. 2 ил. СУ) The invention relates to the building materials industry, primarily to the production of cement clinker. The purpose of the invention is to provide temperature control in the branches of the heat exchangers. The raw cement material first flows through the feed pipe to the heat exchanger assembly, from which the material stream is fed to the discharge pipe of the heat exchanger of another branch for exhaust gases. The raw material-material streams alternately pass between the branches of the heat exchanger of the branches for the flue gases, the raw material being heated in steps. After the last preheating stage in the heat exchanger assembly, the flow of raw material flows through the discharge pipe to the reactor in which the material is decarbonated. From the decarbonator, the material is fed back in two separate streams, respectively, to the supply of flue gas and flows through the separator into the kiln. The burned clinker is cooled in the refrigerator. 2 Il. SU)

Production of cement clinker and plant to this end

FIELD: process engineering. SUBSTANCE: set of inventions relates to production of clinker cement. Proposed method comprises steps whereat first and second stock portions 6, 7 are heated, calcium carbonate making the main component in first and second cyclone heaters 5 and 7, respectively. First and second heated stock parts 41, 61 are pre-annealed with gas application 9 for fuel combustion in reactor 1 with fluidised bed 13. Flow of fumes 8 produced by reactor 1 without backflow to reactor 1 is directed into second cyclone reactor 7. Annealed stock is roasted to obtain clinker in rotary furnace 2. Fumes 18 produced by rotary furnace 2 are directed into first cyclone heater 5. Clinker obtained in cooler 3 is cooled at forcing of cooling gas via clinker at the level of rotary furnace outlet. Fluidising gas represents gas 8 with content of oxygen of 90-100 % and low rate lower than 2 m/s. EFFECT: facilitated complexation. 15 cl, 1 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 536 578 C2 (51) МПК F27B 7/20 (2006.01) C04B 7/43 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2012103452/02, 30.06.2010 (24) Дата начала отсчета срока действия патента: 30.06.2010 (72) Автор(ы): ДЕВРЁ,Себастьян (FR) (73) Патентообладатель(и): ФИВ ФСБ (FR) Приоритет(ы): (30) Конвенционный приоритет: (43) Дата публикации заявки: 10.08.2013 Бюл. № 22 R U 02.07.2009 FR 09/03.250 (45) Опубликовано: 27.12.2014 Бюл. № 36 A1, 21.05.2008. FR 2281792 A, 12.03.1973. SU 668589 A3, 15.06.1979; . SU 1085516 A3, 07.04.1984. (85) Дата начала рассмотрения заявки PCT на национальной фазе: 02.02.2012 2 5 3 6 5 7 8 (56) Список документов, цитированных в отчете о поиске: US 4402667 A, 06.09.1983. EP 1923367 2 5 3 6 5 7 8 R U FR 2010/000478 (30.06.2010) C 2 C 2 (86) Заявка PCT: (87) Публикация заявки PCT: WO 2011/001044 (06.01.2011) Адрес для переписки: 109012, Москва, ул. Ильинка, 5/2, ООО "Союзпатент" (54) СПОСОБ ПОЛУЧЕНИЯ ЦЕМЕНТНОГО КЛИНКЕРА В ...

污泥处理方法和水泥制造系统

一种水泥制造系统，其具备：对水泥原料进行预热的悬浮预热器；对预热后的水泥原料进行煅烧的煅烧炉；以及对煅烧后的水泥原料进行烧成的烧成炉。该水泥制造系统中，将包含干燥污泥的粒状物投入悬浮预热器的600℃以上且小于800℃的温度区域，将干燥污泥作为水泥原料和燃料使用。

硅酸三钙-硫硅酸钙-硫铝酸盐水泥及其低温制备方法

本发明公开了一种低温制备硅酸三钙‑硫硅酸钙‑硫铝酸盐水泥的方法，该水泥熟料矿物的质量配比如下：硅酸三钙：5‑45％，硫硅酸钙：20‑50％，硫铝酸钙：18‑40％，含铁相：0‑10％。本发明将原料进行活化处理，降低硅酸三钙的煅烧温度，可在1150‑1260℃通过一步煅烧的方式低温制备硅酸三钙‑硫硅酸钙‑硫铝酸盐水泥熟料。本发明工艺简单、低碳、绿色环保。

Цепь для цепной завесы вращающейся печи (варианты)

1. Цепь для цепной завесы вращающейся печи, состоящая из соединенных между собой звеньев любой геометрической формы, выполненных полыми, отличающаяся тем, что внутри тела каждого звена расположен наполнитель. ! 2. Цепь для цепной завесы вращающейся печи по п.1, отличающаяся тем, что поперечные сечения звена и внутренней полости выполнены любой геометрической формы. ! 3. Цепь для цепной завесы вращающейся печи, состоящая из соединенных между собой звеньев любой геометрической формы, выполненных полыми, отличающаяся тем, что внутри тела каждого звена расположен твердотельный сердечник. ! 4. Цепь для цепной завесы вращающейся печи по п.3, отличающаяся тем, что поперечные сечения звена и твердотельного сердечника выполнены любой геометрической формы. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2009 140 569 (13) A (51) МПК F28F 1/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2009140569/06, 02.11.2009 (71) Заявитель(и): Зубачев Александр Сергеевич (RU), Серебряков Виктор Евгеньевич (RU), Жиренко Сергей Борисович (RU) Приоритет(ы): (22) Дата подачи заявки: 02.11.2009 A 2 0 0 9 1 4 0 5 6 9 R U Ñòð.: 1 ru A (57) Формула изобретения 1. Цепь для цепной завесы вращающейся печи, состоящая из соединенных между собой звеньев любой геометрической формы, выполненных полыми, отличающаяся тем, что внутри тела каждого звена расположен наполнитель. 2. Цепь для цепной завесы вращающейся печи по п.1, отличающаяся тем, что поперечные сечения звена и внутренней полости выполнены любой геометрической формы. 3. Цепь для цепной завесы вращающейся печи, состоящая из соединенных между собой звеньев любой геометрической формы, выполненных полыми, отличающаяся тем, что внутри тела каждого звена расположен твердотельный сердечник. 4. Цепь для цепной завесы вращающейся печи по п.3, отличающаяся тем, что поперечные сечения звена и твердотельного сердечника выполнены любой геометрической формы. 2 0 0 9 1 4 0 5 6 9 (54) ...

Способ и устройство для приготовления цементного клинкера из порошкового цементного сырья

Process of thermal treatment of mixture of cement starting materials and plant for its implementation

FIELD: construction industry, specifically, calcination of cement clinker by wet method. SUBSTANCE: process of thermal treatment of mixture of cement starting materials includes drying in spray drier, layer decarbonization, calcination of cement clinker in rotary furnace and cooling in cooler. Drying takes places under uniform oriented distribution of slurry drops and decarbonization of mixture occurs in fluidized layer in high-temperature zone of cone of short-flame ceramic burners. Hot air from furnace body in clinkering zone and from second chamber of cooler is used fro drying and decarbonization. Plant for thermal treatment of mixture of starting materials has spray drier, decarbonizer, rotary furnace, cooler, hot air conduit, device to take heat from furnace body in clinkering zone and from second chamber of cooler, short-flame ceramic burners. Spray drier includes slurry drop feeder with rotating arc-shaped blades and grate with conical holes. EFFECT: reduced consumption of fuel, enhanced productivity of plant and improved quality of cement. 2 cl, 2 dwg росс ПЧ Го РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) (51) МПК ВИ "” 2 128 151 ' 13) СЛ С 04 В 7/44, Е 27В 7/00, 7/32, Е 270 3/44 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 96121025/03, 04.10.1996 (46) Дата публикации: 27.03.1999 (56) Ссылки: ЗИ 1585302 А1, 15.08.90. КУ 94009707 АЛ, 27.11.95. 50 Э5З91Г А, 23.08.82. КО 2056386 СЛ, 20.03.96. КЦ 2021222 СЛ, 15.10.94. 54 401046 А, 01.04.74. $Ц 1792408 АЗ, 30.01.93. Пономарев И.Ф. и др. Технология производства цемента сухим и полусухим способами. - Киев: Будивельник, 1988. Строительные материалы. / Справочник. - М.: Стройиздат, 1989. (98) Адрес для переписки: 346400, Новочеркасск, ГСП-1, Просвещения, 132, НГТУ патентный отдел (71) Заявитель: Новочеркасский государственный технический университет (72) Изобретатель: Гайджуров П.П., Бородавкина В.В., Татаринцев И.Г., Верещака В.В. (73) Патентообладатель: Новочеркасский ...

Method to produce cement clinker and plant to produce cement clinker

FIELD: construction. SUBSTANCE: plant comprises a cyclone heater, a prebaking reactor, a rotary furnace and a clinker cooler. According to the invention fumes from the furnace are sent into the prebaking reactor and even into the cyclone heater. Into the prebaking reactor (4) gas (9) is supplied with high content of oxygen, in which nitrogen content is below 30% and which is the only source of oxygen for the specified reactor. Some (8 a ) gases leaving the cyclone heater are recirculated into the plant so that the appropriate flow is produced, which is necessary for obtaining the suspended condition of raw materials in the specified heater. The other part (8 b ) with high content of carbon dioxide is adapted with the purpose of treatment that makes it possible to limit carbon dioxide emissions into atmosphere, in particular, such as complexing. EFFECT: method improvement. 14 cl, 3 dwg, 2 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 498 181 (13) C2 (51) МПК F27D 17/00 (2006.01) F27B 7/20 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2011107731/02, 17.07.2009 (24) Дата начала отсчета срока действия патента: 17.07.2009 (72) Автор(ы): КОРДОННЬЕ Ален (FR), ДЕВРЁ Себастьян (FR) (73) Патентообладатель(и): ФИВ ФСБ (FR) R U Приоритет(ы): (30) Конвенционный приоритет: 01.08.2008 FR 08/04406 (43) Дата публикации заявки: 10.09.2012 Бюл. № 25 2 4 9 8 1 8 1 (45) Опубликовано: 10.11.2013 Бюл. № 31 (56) Список документов, цитированных в отчете о поиске: ЕР 1923367 А, 21.05.2008. DE 3010909 А1, 01.10.1981. RU 2248946 С2, 27.03.2005. RU 2136622 С1, 10.09.1999. 2 4 9 8 1 8 1 R U (86) Заявка PCT: FR 2009/000883 (17.07.2009) C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 01.03.2011 (87) Публикация заявки РСТ: WO 2010/012880 (04.02.2010) Адрес для переписки: 109012, Москва, ул. Ильинка, 5/2, ООО "Союзпатент" (54) СПОСОБ ПОЛУЧЕНИЯ ЦЕМЕНТНОГО КЛИНКЕРА И УСТАНОВКА ДЛЯ ПРОИЗВОДСТВА ЦЕМЕНТНОГО КЛИНКЕРА ...

Cement clinker manufacturing method in equipment and such cement clinker manufacturing equipment

Patent FR2213248A1

一种基于卷积神经网络的水泥烧成过程多能耗指标预测方法

本发明提供一种基于卷积神经网络的水泥烧成过程多能耗指标预测方法，其包括以下步骤：S1：选取与水泥烧成过程能耗相关的12个输入变量，然后对选取后的变量数据进行归一化处理，构建12个变量时间序列输入层；S2：对输入的变量数据进行卷积池化及全连接运算；S3：采用反向传播技术更新权值参数以提高预测精度；S4：利用步骤S3中训练好的CNN模型进行水泥烧成系统的单位电耗及吨煤耗实时预测。本发明建立的CNN模型，能够对水泥烧成系统的单位电耗和吨煤耗进行联合预测，可以及时的为水泥烧成过程提供规划调度依据，同时避免了仅仅预测单一能耗不全面的问题，预测结果更能反应综合能耗实际情况。

一种高镁高碱石灰石制备水泥熟料的方法

本发明公开了一种高镁高碱石灰石制备水泥熟料的方法，属于水泥熟料制备技术领域，包括，将高镁高碱石灰石破碎后进行均化；其中，所述高镁高碱石灰石中氧化钙含量为40.0‑46.0％、碱含量为0.70‑1.2％、氧化镁含量为3.0‑4.5％；确定原料及其配比以及熟料率值；将原料配料、粉磨得生料；将所述生料入回转窑煅烧得水泥熟料。本发明方法通过对原材料、熟料率值的选择以及煅烧工艺的优化，解决了高碱高镁石灰石煅烧熟料易生成大块、结圈和结厚窑皮等问题，实现了高产低耗，实现了利用高镁高碱石灰石生产出高强度的水泥熟料。