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WO/2002/064526A1 |
A method of producing cement clinker and electricity comprises feeding cement raw meal constituents in crushed form and coal in a circulating fluidized bed boiler furnace (1), calcining the cement constituents therein and producing steam...
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WO/2002/065816A1 |
Apparatus and method is provided for the heating of granules (24) by the use of induction power. A rotating furnace chamber (10) is provided with interior conveying elements (14) that transport granules through the furnace (10). The furn...
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WO/2002/055745A1 |
The invention concerns a method for pelletization of iron ore. Said method is characterised in that it consists in supplying pellets consisting of a mixture of iron ore and additives, forming a bed of said pellets which is displaced in a...
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WO/2002/050484A1 |
The plant for the thermal treatment of material, in particular scrap material, comprises at least a reaction zone (10, 10a, 10b, 10c) within a rotary kiln (12) having the longitudinal axis inclined of an angle in the range 0° ± 45° wi...
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WO/2002/046671A1 |
The invention relates to an installation and to a method for the thermal treatment of pellet-type material. Said installation comprises a preheating device (1) for preheating the material, an oven (2) for burning the preheated material a...
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WO/2002/042701A1 |
A calcining system (10) is operated in a substoichiometric mode for reducing nitrogen oxide generation and removing sulfur from materials (26) to be processed by creating an oxygen deficient atmosphere. The calcining system (10) includes...
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WO/2002/025196A1 |
Described is a plant for manufacturing cement clinker comprising a preheater (1) which comprises at least one last cyclone (1d) and at least one next-to-last cyclone (1c) which is connected in series via a gas duct (2c) to and fed with g...
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WO/2002/023110A2 |
A method is described for reducing NOx emissions and improving energy efficiency during mineral processing in a rotary kiln (12). The method comprises injection of air (32) with high velocity/high kinetic energy into the kiln to reduce o...
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WO/2002/018270A1 |
The present invention relates to a method of decomposing gypsum to sulfur dioxide, and the apparatus thereof. The apparatus comprises a set of four-stage cyclone preheater and a rotary kiln for decomposing and calcining. In the four-stag...
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WO/2002/016849A1 |
A description is given of a method as well as a plant for manufacturing cement clinker by which method cement raw meal is preheated in a preheater (1), calcined in a calciner (3) comprising an upper end (3a) and a lower end (3b), burned ...
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WO/2002/014752A2 |
The present invention relates to a method of and apparatus for cooling a material, such as lime, treated in a rotary tubular kiln, in a cooler associated with the kiln. The cooler comprises at least one chamber, into the inlet of which h...
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WO/2001/096799A1 |
A rotary kiln (18) includes a novel air conveying system for delivering a supply of port air beneath the material bed of feed stock passing through the interior of the kiln. The air conveying system includes an air inlet port (50) dispos...
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WO/2001/090589A1 |
The invention relates to a roller support system for supporting a rotatingly driven tubular body so that it can be tilted, axially displaced and rotated. The inventive roller support system comprises two rollers that are disposed symmetr...
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WO/2001/088272A1 |
An aggregate dryer for asphalt plant capable of reducing the length of a rotating drum and the required installation area for the dryer so as to save energy without lowering the dryness of aggregate, wherein the rotating drum formed by c...
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WO/2001/081847A1 |
A rotary furnace (20) includes a drum (40) and a frame (22) supporting the drum for rotation about a nominally horizontal rotational axis. The frame (22) and the drum (40) are supported for pivotal movement about a horizontal pivotal axi...
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WO/2001/077600A1 |
The invention relates to a cooler (1) and a method for cooling hot bulk material (2). The hot bulk material is charged onto a stationary aeration bottom (3) that can be flown through by cooling gas and is transported by means of conveyin...
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WO/2001/074734A1 |
In a method of increasing the clinker output of an existing cement plant, a raw mix feedstock is preheated in a first preheater (70) with kiln exhaust gases. The preheated raw mix feedstock is calcined, then burned in a rotary kiln (16) ...
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WO/2001/075382A1 |
The present invention relates to a cooler (2) for a rotary drum kiln (1). The cooler comprises two cylindrical housings disposed one inside the other (6, 7), surrounding the kiln and rotating with it, which housings are mounted at the di...
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WO/2001/072654A1 |
A description is made of a method as well as an apparatus for manufacturing cement clinker from particulate cement raw material by which method fresh raw material is preheated and possibly precalcined in a suspension preheater (1, 3) by ...
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WO/2001/071049A2 |
A furnace system for recovering a non-ferrous metal from a charge of material. The furnace system (10) having a furnace chamber (12) having walls defining a refractory chamber, which receives the charge of material and the metal containe...
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WO/2001/068927A1 |
A continuous nickel matte converter and method for the efficient production of low iron nickel-rich mattes from high-iron nickel-rich mattes, with minimal environmental impact. The present invention processes high-iron, nickel-rich prima...
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WO/2001/062684A1 |
A large coating lump removing device, wherein the rear end of a push rod (40) is journaled to a support table (50) which is fitted movably to a guide rail (60), a drive part (70) to rotatingly operate a wire belt (74) between wheels (73)...
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WO/2001/059382A1 |
A trefoil (10) for a rotary kiln (5) is provided that has at least three spoke-like refractory legs (12a, 12b, 12c). Each one of the legs (12a, 12b, 12c) extends radially outwardly from a center of the trefoil; spans approximately from t...
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WO/2001/053751A1 |
A direct coal fired burner system (22) for a rotary kiln (20) in which the burner (36) has a multi-barrel construction through which primary air for conveying coal is heated with tertiary air sourced from the rotary kiln (20), and the sh...
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WO/2001/049594A1 |
A tire conveyor and lift apparatus (10) for conveying, lifting and orienting fuel tires (46) for injection into a rotating cement kiln by force or by gravity. The apparatus brings tires (46) from a tire source by a variable speed conveyo...
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WO/2001/050076A1 |
A warp resistant fuel feed door assembly (10) for use in injecting supplemental fuel into a high temperature combustion chamber such as a rotating cement kiln (16) without substantial loss of heat or combustion gases. The apparatus, whic...
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WO/2001/038786A1 |
The feed chute apparatus (16), which is positioned adjacent to a cement kiln (10) and supported at an angle of inclination sufficient to allow tires (22a, 22b) or other combustible materials to be gravity fed into the cement kiln, but no...
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WO/2001/032581A1 |
A controller for a kiln plant, typically a cement plant, has a thermodynamic controller which measures a number of variables including the kiln hood temperature and one or more output gas concentrations, and controls the fuel input to th...
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WO/2001/029495A1 |
A method of disposing of undesirable chemical compounds in waste dust (90) generated in a first kiln (84) in the manufacture of cement clinker by using the dust and slag (96) as the feedstock material to a second kiln (94), heating the f...
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WO/2001/025494A1 |
A method and apparatus for forming iron carbide from a heated product stream of direct reduced iron (DRI). The apparatus includes a rotary cooler positioned immediately downstream from a rotary kiln such that the rotary cooler receives t...
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WO/2001/023318A1 |
Described is a method for reducing the NO¿x? emission from a plant for manufacturing cement clinker in which cement raw meal is preheated in a preheater (1). The raw meal is then calcined whilst being subject to simultaneous input of fu...
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WO/2001/014276A1 |
A method for producing a lightweight aggregate by treating flyash and sewage sludge. The flyash and sewage sludge are mixed together and agglomerated into pellets. The pelletized agglomerate is fed into a rotary kiln in a direction that ...
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WO/2001/014810A1 |
The invention relates to a rotating oven (1) with an oven drum (3) which is arranged in a frame (2). Said oven drum (3) can be rotated and driven and is provided with closed header plates (4,5) which can form inlet and outlet openings wh...
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WO/2001/009548A1 |
A method for incineration of combustible waste during the manufacture of cement clinker where cement raw meal is preheated and calcined in a preheater (1) with a calciner (3), burned into clinker in a kiln (5) and cooled in a subsequent ...
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WO/2001/007853A1 |
A method and apparatus for controlling the combustion of fuel modules (11) charged into a preheater or precalciner kiln (14) above the transition shelf (16), typically into the riser duct (12), is described. The apparatus includes a sens...
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WO/2000/076934A1 |
The invention deals with an equipment for calcination for precalcining of powdered materials before their burning in a sintering equipment. The equipment is inserted between the last but one cyclone (72) of connected cyclone exchanger (7...
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WO/2000/069786A2 |
Cement clinker is produced using high sulfur fuels by combusting high sulfur fuel within a kiln. The feed material is introduced at an inlet of the kiln and is sintered by the combusting fuel to form sintered material. The sintered mater...
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WO/2000/064832A1 |
Thermal electricity generating plants face a problem of disposal of fly ash generated by burning low grade coals. In the present invention, rapid cooling of clinker gives rise to glass phase clinker giving rise to a high class cement, ut...
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WO/2000/064813A1 |
A method for continously calcinating product to form mixed metal oxide powders comprising providing a continously operated indirectly heated rotary furnace having a heating cavity, introducing raw feedstock including product to be calcin...
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WO/2000/063629A1 |
The invention relates to a device for thermally treating a material, in particular for thermally and/or chemically treating said material, comprising an ascending branch (1) of a pipe conduit, a deviation chamber (2) and at least one des...
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WO/2000/056678A1 |
The invention consists in a line for clinker burning, composed from a rotary kiln, to it connected air clinker cooler and from a pre-heater of powdered raw material arranged before the rotary kiln, where the pre-heater is composed from a...
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WO/2000/053818A1 |
A combined cooling device and magnetic separator for cooling a heated product stream and removing a magnetic material from the product stream is useful in the production of direct reduced iron (DRI). The combined cooling device and magne...
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WO/2000/049356A2 |
The lower, that means in high reduced, heat exchanger according to the invention is composed from a system of cyclones for preheating and following separation of powdered raw material before its next thermal processing, where the exchang...
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WO/2000/039044A1 |
The cyclone heat exchanger according to the invention comprises a set of cyclones for preheating powdered raw material. The set of cyclones is divided into a high temperature part (1) and a low temperature part (2) mutually interconnecte...
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WO/2000/028098A1 |
Apparatus (1) and process for treating particulate material or powder (33) of a size capable of being fluidized in a retort (31) mounted for rotation on a pair of end axles (18, 41). Retort (31) is mounted on a tilt frame (5) for tilting...
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WO/2000/012444A1 |
A device and a method of bypassing a kiln exhaust gas, wherein part of an exhaust gas produced by the operation of a kiln (11) is bled through a probe (13), subjected to a primary cooling down to 400 to 600 °C after mixed with a cooling...
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WO/2000/007910A1 |
A fuel charging apparatus (10) is configured to charge fuel modules (16) through an aperture formed in a vessel (18). The fuel charging apparatus (10) includes a lost motion fuel charging mechanism (14) and a power mechanism (12). The lo...
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WO/2000/008402A1 |
The invention produces a continuous rotary kiln (1) especially suited for the calcination of inorganic pigments including: a combustion chamber (2) developed mainly in a lengthways direction; means (5) for heating said chamber according ...
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WO/2000/003188A1 |
The present invention is directed to an indirect-fired, stationary tube (10), gas/solids or solids/solids, full ceramic pyroprocessing furnace-reactor (80) that uses heat-resistant conveyors (15) to propel solids through the stationary t...
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WO/1999/067588A1 |
A rotating vacuum kiln (1) and method for heat treating solid particulate material under vacuum conditions uses a rotating refractory metal cylindrical vessel (2) with a cool inlet zone (3), hot intermediate zone (6), and cool exit zone ...
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