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Matches 151 - 200 out of 3,478

Document Document Title
WO/2002/101309A1
The continuous thermal extraction melting unit is composed by a charging hopper (1) that is equipped of system of hydraulic closing (2). The native mineral, through the duct (3), reaches the cochlea of feeding (4) so to be fed in the dis...  
WO2002046673A3
According to the method, granular ore or ore concentrate is introduced into a kiln (1) for roasting the ore at temperatures of 400 to 1050 DEG C, whereby the ore in the kiln forms a stationary fluidised bed (3). The ore is projected onto...  
WO/2002/072894A1
The present invention relates to an arrangement and method that help to reduce the build-up formed on the grate of a fluidized-bed furnace in the roasting of fine-grained material such as concentrate. The concentrate is fed into the roas...  
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...  
WO/2002/055746A1
The invention relates to an apparatus for feeding finely divided solids, containing at least sulphidic metal concentrate, and oxygenous oxidizing gas into a suspension smelting furnace, said apparatus comprising elements for conducting s...  
WO/2002/053787A1
A heat treating device, wherein, by using a multi-layer heat treating furnace (1), one layer is formed in a fluidized bed (2) formed of granular material and excellent in heat efficiency and uniformity of thermal distribution and the oth...  
WO/2002/046673A2
According to the method, granular ore or ore concentrate is introduced into a kiln (1) for roasting the ore at temperatures of 400 to 1050 °C, whereby the ore in the kiln forms a stationary fluidised bed (3). The ore is projected onto t...  
WO/2002/022249A1
A method and apparatus for the debonding and sand core removal of sand cores from cast parts, the heat treating of metal parts and the removal of organic contamination from metal parts, which is utilizing a fluid bed furnace having an im...  
WO/2002/012813A1
A fluidized bed furnace wherein a particulate article is filled in a vessel, the particulate article being fluidized by hot air blown into the vessel to form a fluidized bed, allowing a workpiece to be heat-treated in the fluidized bed. ...  
WO/2002/000944A1
The invention relates to a method for directly reducing particulate oxide-containing ores, especially iron-oxide containing material, by way of a fluidized bed method, at a pressure of > 5 bar. According to the inventive method, the ore ...  
WO/2002/000945A1
The invention relates to a method for the indirect reduction of particulate oxide-containing ores, especially iron oxide containing material, in a fluidized bed method at a pressure < 5 bar. According to the inventive method, the ore is ...  
WO2001046478A3
A smelting reduction apparatus which separates exhaust gas, which is exhausted from a melter-gasifier (40) or a fluidized bed reactor (10, 20, 30), into dusts and reducing gas to supply them to each fluidized bed reactor (10, 20, 30) res...  
WO/2001/073141A1
The invention concerns a method for thermal treatment of steel wire, which consists in raising the temperature of at least one steel wire to be treated up to a temperature for austenitizing the steel, and maintaining the wire at said tem...  
WO/2001/071266A1
A fluidized bed heat treating furnace (1) used for the solution heat treatment of metal products made of aluminum alloy and for heat treatment such as quenching and tempering which is capable of mainly supplying heat energy through a hea...  
WO1999031450A3  
WO/2001/045824A1
Gas produced in the reaction chamber (1) of a high-temperature swirl furnace is blown through a downcomer (4) into a quenching chamber (2) having a quenching bath, whereby the producer gas is cooled and slag mist entrained in this gas is...  
WO/2001/046478A2
A smelting reduction apparatus which separates exhaust gas, which is exhausted from a melter-gasifier (40) or a fluidized bed reactor (10, 20, 30), into dusts and reducing gas to supply them to each fluidized bed reactor (10, 20, 30) res...  
WO/2001/035020A1
A circulating fluidized bed reactor comprising a furnace (20), defined by a substantially vertical and planar first wall (12), and a particle separator having a return duct (40) adjacent said first wall. In the lower part of the return d...  
WO/2001/032941A1
A fluidized bed reduction reactor (100) for supplying a reduced iron to a melter-gasifier (1) of a smelting reduction system includes an exhaust gas supply unit (3) for supplying an exhaust gas to a reduction gas supply tube (4) intercon...  
WO/2001/009398A1
The invention relates to an apparatus for the heating of flowing material containing finely divided solids, such as concentrate slurry containing precious metals and/or precious minerals, up to a desired temperature range, for instance t...  
WO2000036354A9
A single furnace system (10) integrates, in combination, two or more distinct heating environments (which in the preferred embodiments include a conduction (23) heating environment and a convection (24) heating environment) integrated su...  
WO/2000/070103A1
The present invention relates to a method and equipment, whereby matte with a high non-ferrous metal content and disposable slag are produced simultaneously in a suspension-smelting furnace from non-ferrous sulphide concentrate. Accordin...  
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...  
WO/2000/037687A1
A complex fluidized bed type apparatus for reducing a fine iron ore, and a method therefor, are disclosed in which the reactivity of the fine iron ore particles, the gas utilization degree and the gas consumption rate are most efficientl...  
WO/2000/036155A1
Gravitational type furnace for the direct reduction of mineral iron comprising a median reaction zone (14) in which the reactions to reduce the mineral iron occur, means (11) to feed the mineral iron to said reaction zone (14), means (18...  
WO/2000/036159A1
Method and apparatus for the direct reduction of mineral iron inside a vertical reduction furnace (10) of the type with a gravitational flow, wherein the reducing gas flows counter to the material introduced into the furnace, comprising ...  
WO/2000/036354A1
A single furnace system (10) integrates, in combination, two or more distinct heating environments (which in the preferred embodiments include a conduction (23) heating environment and a convection (24) heating environment) integrated su...  
WO/2000/032532A1
Vertical tall retorts are commonly used in a variety of metallurgical and chemical processes. Most of these retorts are counter flowing process, gases flowing upwards through a bed of packed solids moving vertically toward a discharging ...  
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...  
WO/2000/023183A1
The invention concerns a method and a device for heat treatment of finely divided solids, which consist in organising a gradual and continuous unidirectional displacement of solid particles along a vibro fluidised bed, and in subjecting ...  
WO/2000/020111A1
Fluidized bed reactors having centrally positioned heating means, as well as methods for their use, are provided. The subject reactors (10) comprise a centrally positioned heating means (e.g. a susceptor rod (12)) that, during operation,...  
WO/2000/012206A1
The invention relates to a reactor vessel for treating a fluidizable material with a fluidizing medium which via a nozzle base (2) of the reactor vessel can be fed into a processing chamber (11) situated above said nozzle base (2). Openi...  
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...  
WO/2000/002654A1
According to the invention, a fluidizing gas is introduced upwards into the fluidized bed (3) through a valve grid (2), said stationary fluidized bed (3) containing solids with different grain sizes. A supply pipe (10) is disposed in the...  
WO/1999/049953A1
The invention relates to a method for cleaning metal or ceramic equipment and machine parts soiled with polymer deposits, especially spinning packets, spinning nozzles, candle filters and filter plates. The parts soiled with the polymer ...  
WO1999040040A3
A kiln plant for manufacturing cement, said plant comprising a kiln (1), a cooler (4), a calciner (2) with subsequent separation cyclone (9), a burning compartment (3) provided at its upper part with a central burner (16), and featuring ...  
WO/1999/042777A1
A fluidized bed furnace in which the height difference between the fluidized beds of the front and rear divided chambers is appropriate and does not cause back mixing. When the vertical position of the communication port (9) for moving t...  
WO/1999/040040A2
A kiln plant for manufacturing cement, said plant comprising a kiln (1), a cooler (4), a calciner (2) with subsequent separation cyclone (9), a burning compartment (3) provided at its upper part with a central burner (16), and featuring ...  
WO/1999/036582A1
The present invention relates to a method for processing pyrite minerals, using a microwave energized fluidizing reactor, under temperature conditions that provide reaction products that are relatively free of SO¿2? emissions. The tempe...  
WO/1999/032666A1
A two step twin-single fluidized bed type reduction apparatus for fine iron ore, and a method therefor, are disclosed. The fluidizing of the fine iron ore is stabilized so as to improve the reduction degree and the gas utilization rate, ...  
WO/1999/032217A1
A method of and apparatus for controlling heat transfer in a fluidized bed reactor having a heat transfer chamber (312) with a bed (314) of solid particles therein, means (320, 322) for introducing fluidizing gas into the heat transfer c...  
WO/1999/031450A2
A raining bed heat exchanger includes: a hollow stack (10); a feed inlet (15) located near the top of the stack for introducing particulate material into the stack so that the material falls through the stack; a gas inlet (18) located ne...  
WO/1999/025884A1
The invention relates to a method for heat-treating fine-grained materials which tend to agglomerate at high temperatures and which have an average grain size of preferably 0 to 1000 $g(m)m within temperature ranges around and above the ...  
WO/1999/023431A1
A fluidized bed gasification combustion furnace in which a gasification furnace and a combustion furnace are integrated with each other, and unburned char generated in the gasification furnace is burnt in the combustion furnace to use th...  
WO1999002332A3
A particulate material heating system and method for heating particulate material having a core (3) which is heated to a predetermined temperature. The core (3) has a plurality of serpentine passages (6) which receive particulate materia...  
WO/1999/016541A1
The present invention provides a process for treating a particulate material, in which particles of the material to be treated interact with non-static particles of a second material, the process comprising the steps of: (i) providing a ...  
WO/1999/002332A2
A particulate material heating system and method for heating particulate material having a core (3) which is heated to a predetermined temperature. The core (3) has a plurality of serpentine passages (6) which receive particulate materia...  
WO/1998/055417A1
The invention relates to the production of cement clinker from powdered and fine-grained raw material using a cyclone preheater, a precalcination arrangement, a kiln and a cooler. In order that fine dust filtered out of the exhaust gases...  
WO/1998/055418A1
The invention concerns an installation for quick thermal treatment of suspended powder substances, in particular for flash calcining of mineral substances. Said installation comprises modules (M1, M2, M3) advantageously arranged in mobil...  
WO/1998/051965A1
The present invention relates to a new type of heating equipment for pellets (2), comprising a spherical combustion area (7), the surrounding wall of which is perforated (37), said combustion area (7) being surrounded concentrically by a...  

Matches 151 - 200 out of 3,478