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Matches 501 - 550 out of 5,389

Document Document Title
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/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 ...  
WO/1999/060172A1
A continuous process is provided for rapid melting of a variety of virgin and recycled ferrous and non-ferrous metals. This is accomplished by distributing the introduction of the unmelted charge materials and hence the melting heat requ...  
WO1998048231A8
A cooler (1) for cooling particulate material which has been subjected to heat treatment in an industrial kiln (3), such as a rotary kiln for manufacturing cement clinker, which cooler (1) comprises an inlet (4), an outlet (5), end walls...  
WO/1999/044000A1
A fabricated steel lifter (10) for enhancing mixing of particulate material in a rotary calcining kiln. The lifter (10) is fabricated from a weldable heat resistant alloy and includes a base plate (12), an anchor post (20), a sole plate ...  
WO/1999/041316A1
Method for the production of TiO¿2? pigments by dissolving titanium raw materials with sulfuric acid, producing a metal sulfate-containing titanyl sulfate solution, hydrolysing the titanyl sulfate, separation of the titanium dioxide hyd...  
WO/1999/030095A1
The invention concerns a device for driving a cylinder (1) in rotation about its longitudinal axis, comprising (a) a ring gear (2) perpendicular to the cylinder axis; (b) truncated rollers (4, 5) arranged on each side of the ring gear, o...  
WO/1999/028678A1
The invention concerns a method for automatized combustion of solid fuel in a combustion apparatus which comprises a burner (1) with a device (1), which is rotatable about the centre axis of the burner for stirring the fuel in the burner...  
WO/1999/028236A1
The invention concerns a conversion device comprising successively a reactor (12) provided with means for inputting UF¿6?, water vapour and nitrogen for bringing about the formation of UO¿2?F¿2? by hydrolysis, a rotary pyrohydrolysis ...  
WO/1999/028261A1
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...  
WO/1999/028512A1
The invention concerns a method for reducing iron oxides and smelting iron, characterised in that it comprises at least two consecutive steps, namely: a first conventional step of reduction up to a degree of metallisation of the order of...  
WO/1999/018406A1
A preheater or precalciner kiln (14) is modified to feed solid fuel into a riser duct (12) of the kiln to enable efficient environmentally sound use of solid waste-derived fuel. The modified kiln includes a solid fuel delivery port (36) ...  
WO/1999/010544A1
Solid state iron oxide reduction in a gas-solid reduction zone is combined with continuous melting of the hot solid reduced iron in a fuel-fired gas-solid-liquid melting zone within a rotary furnace. The process includes direct pneumatic...  
WO/1999/006778A1
The invention in its various embodiments includes an apparatus and a method for improving combustion in a cement kiln system (10). The apparatus in one embodiment includes a precalciner (16) and an oxygen source (60) coupled to the preca...  
WO/1999/003794A1
A probe of a double pipe structure is connected to an exhaust gas passage of the kiln and a part of the exhaust gas from the kiln is extracted via the inner pipe of the probe, while a cooling gas is supplied to the fluid passage between ...  
WO/1999/003795A1
The present invention relates to a method for the wasteless processing of great quantities of phosphate gypsum waste into a form suitable for use as additive in colours, enamels, synthetic resins, and as binding component for especially ...  
WO/1998/056728A1
Improved method and apparatus are disclosed and claimed, to recover energy from waste by means of combustion of same in industrial furnaces, particularly of the rotary type, that has an external calciner, feeding such waste into the tert...  
WO/1998/055423A1
The invention pertains to a ordinary-ceramic fire-proof body, especially intended for use a magnesia-based and/or burnt dolomite-based liner material for revolving tubular kilns or the like. The total mixture (batch) for making the mould...  
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/1998/053261A1
A metallurgical furnace unit (1) includes a cylindrical furnace body (2) which is intended for rotation and/or tilting or like movement and is provided with at least one ring (7) mounted outside the furnace body (2) and functioning to en...  
WO/1998/048231A1
A cooler (1) for cooling particulate material which has been subjected to heat treatment in an industrial kiln (3), such as a rotary kiln for manufacturing cement clinker, which cooler (1) comprises an inlet (4), an outlet (5), end walls...  
WO/1998/046952A1
The invention concerns support device (1) for a cylindrical drum (2) such as, for instance, an oven, drier, cooler or the like, designed for thermal and/or chemical treatment of materials, comprising at least a track roller (3), co-opera...  
WO/1998/039611A1
The invention relates to a rolling body for cleaning interior wall areas of a rotary drum. Said rolling body (20) has single or multiple sections (21, 22) and has at least two cleaning zones comprising the shell surfaces (21A, 21B, 21C, ...  
WO/1998/030818A1
The present invention relates to a sealing arrangement between a rotary drum and the stationary end thereof arranged in a material flow in relation to each other. In particular, the invention relates to a sealing between a rotary drum ki...  
WO/1998/013657A1
A plant for heat treatment of particulate material, comprises a rotary kiln (1) for burning the particulate material, a material cooler (3) for cooling the material, the cooler (3) being connected to the material discharge end of the kil...  
WO/1997/048652A1
The invention relates to a method of regulating the flue gas temperature in a cement production plant comprising a kiln (1), a flue gas conditioning device (2), a mill (3) and an electrostatic precipitator (4), whereby the flue gas from ...  
WO/1997/046843A1
A rotary reactor (11) is shown having an improved internal lining including a lifter section which extends along an interior surface of the reactor chamber for lifting material from a lower portion (23) of the chamber to an upper portion...  
WO/1997/038948A1
Process for the heat treatment of a pulverulent material wherein is provided an area having a length L inside the kiln and wherein prevail predetermined temperature and thermal tension conditions by supplying a gas flow at the discharge ...  
WO/1997/039155A1
A process and an apparatus are disclosed for improved recovery of metal from dross, wherein a dross treating furnace is provided with a refractory wall or lining with good capacity to store and conduct heat. This furnace is preheated to ...  
WO/1997/037754A1
The use of urea injection SNCR is enabled for rotary kilns of the type used to produce cement clinker. Rotary kilns (10) are long cylinders that rotate about an inclined axis, with cement premix fed in at one end (14) and a burner (18) f...  
WO1997026495A3  
WO/1997/032824A1
The present invention relates to a plant for manufacturing cement clinker. The plant consists of a preheater, a calciner in which the raw material is calcined at a temperature of more than 800 �C and where fuel and oxygen-containing ga...  
WO/1997/030003A1
The invention relates to a method for reducing the NOx emission from a kiln plant for heat treatment of raw materials, in which kiln plant fuel can be fired in at least three different zones. In one of these at least three zones an amoun...  
WO/1997/030320A1
In order to preheat iron-base scrap comprising iron pieces of wide ranges of size and shapes at a high efficiency so that these pieces are not fused to one another, a rotary kiln type preheating furnace and a shaft furnace type preheatin...  
WO/1997/026495A2
The invention concerns a delivery device comprising a housing (1) into which opens the delivery pipe (2) of a low temperature carbonization drum (3). A residue-delivery shaft (7) emerges from the housing (1) and opens into a conveyor dev...  
WO/1997/026077A1
An apparatus (10) for calcining a material comprises a calcination vessel (10) which houses a heat exchanger (12). The heat exchanger (12) is arranged to transfer heat to the material from a liquid metal heat exchange fluid arranged to f...  
WO/1997/026375A1
Apparatus (10) for preheating self-reducing pellets for direct use in ironmaking or steelmaking in which a preheat chamber (14) contains the pellets and is primarily externally heated using waste exhaust gases and secondarily heated dire...  
WO/1997/020182A1
A method is described for the conveying of dry, pulverulent material, such as cement raw meal or the like. Particularly, is described a method for feeding material in dosed amounts to a processing plant where the material is supplied to ...  
WO/1997/016390A1
The invention is related to a method and an apparatus for producing cement clinker, in which the cement clinker is first of all burnt in a burning zone and then cooled in a cooling zone, wherein the cooling takes place at least partially...  
WO/1997/014010A1
A rotary furnace including a tilted or horizontal drum of which at least the inner surface is made of a refractory material, and which is rotatably mounted about its longitudinal axis. The drum includes a tubular member (1) made of a ref...  
WO/1997/013594A1
Apparatus for the treatment of volatile material(s) in contaminated material(s) including a retort assembly (10) which includes a rotatable retort (11) disposed at least partially within a combustion chamber (12) with heating means (13) ...  
WO/1996/037446A1
A burned lump cooling apparatus (3) comprises a plurality of grates (5) arranged such that the adjacent grates partly overlap one another so as to convey high temperature cement clinker (11) from a kiln (1). The grates (5) are formed wit...  
WO/1996/036563A1
Method and apparatus are disclosed for making high-grade alumina from low-grade aluminum oxide fines produced as a by-product during calcination of hydrated alumina into metallurgical grade alumina or specialty aluminas. In one embodimen...  
WO/1996/035092A1
A rotary calciner (1) including an elongated shell having a first diameter extending from the discharge end (11) back to a transition zone (5) and a second larger diameter extending from the transition zone (5) back toward the feed end, ...  
WO/1996/032608A1
A method and apparatus for feeding a bulk material supplemental fuel (108) through a port (88) formed in a side wall of a rotary vessel (16) of a cement kiln (10). The apparatus includes a stationary annular plenum (56) surrounding rotar...  
WO/1996/030709A1
An apparatus for highly efficiently preheating and melting scrap, which comprises a scrap melting furnace having arc heating means or a top-blowing lance, and a device for introducing an exhaust gas generated from the scrap melting furna...  
WO/1996/028397A1
A process and apparatus by which crushed and screened blast furnace slag (80) can be added to the feedstock materials (76) fed into the feed-end of a rotary cement kiln to form cement clinkers (82). The blast furnace slag is crushed and ...  
WO/1996/022950A1
The invention concerns a method of utilizing dusts which are produced during the reduction of iron ore with a reduction gas and are deposited in the form of slurries in a scrubber. According to the method the slurries are then dewatered ...  
WO/1996/014548A1
A premix burner assembly (14) for heating the combustion chamber (12) of a dryer (10) for an HMA plant, soil remediation plant, or the like is designed to meet the very low emission limitations that are imposed in certain areas such as t...  
WO/1996/006143A1
A water-based adhesive comprising water-soluble polymers having carboxy groups and quaternary ammonium groups wherein the polymers can be derived by copolymerizing one or more unsaturated aliphatic carboxylic acid monomers, such as acryl...  

Matches 501 - 550 out of 5,389