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WO/2004/020925A1 |
Valve (50) and valve lift system (52) suitable for use in a regenerative thermal oxidizer (10), and oxidizer including the switching valve. The valve of the present invention exhibits excellent sealing characteristics and minimizes wear....
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WO/2004/020924A1 |
The invention concerns a method for operating a ring oven assembly, and a ring oven assembly comprising oven chambers in the form of heat exchangers for post-combustion and purification of gas effluents and for delivering the energy rele...
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WO/2004/007778A1 |
The present invention provides a process plant for the production of molten steel from primary and/or secondary ferrous materials in which no free oxygen is permitted to contact directly carbon-containing iron melts, comprising: - i) at ...
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WO/2004/007819A2 |
The invention concerns a method which consists in heating carbon products in an oven (10) under reduced pressure and under neutral gas sweeping, while continuously extracting from the oven gas effluent containing elementary or combined s...
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WO/2004/000751A2 |
The invention concerns a method for preparing a blend consisting of power station ashes and/or slugs, and/or coal wastes in a quantity of 60-95% by weight, as well as an agglomeration promoting binder, including sewage after-fermentation...
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WO/2003/095921A1 |
Valve (25) with heated sealing gas suitable for use in a regenerative thermal oxidizer (10), and oxidizer including the switching valve. The valve of the present invention exhibits excellent sealing characteristics and minimizes wear. In...
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WO/2003/085323A1 |
The present invention regards a conveyor/cooler for hot loose materials produced by boilers and various industrial processes, mainly comprising a sealed metal container (1) connected to a boiler (2) or to an incinerator from which, thank...
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WO/2003/080874A1 |
A method and an apparatus (50) for producing direct reduced iron (37) from dry pellets (25) composed of iron oxide and carbonaceous material. A mixture of pellets (25) and free coke particles (38) with weight relation from 3:1 to 5:1 is ...
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WO/2003/068700A1 |
A synthetic slag is produced by a high temperature combustion reaction between coal ash having a high carbon content, and a source of lime such as cement kiln dust. The carbon content of the coal ash is oxidized by oxygen gas, which typi...
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WO/2003/068995A1 |
The invention relates to a method and device for the continuous production of steel using metal charge material (8) that is preheated in an upper part of a melting vessel (2), is then melted in a lower part (9) of the melting vessel l(2)...
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WO/2003/050464A1 |
The invention relates to a method for increasing the capacity of a waste−heat boiler (1) processing gases obtained from a metallurgic smelting furnace, such as a flash smelting furnace, and for reducing dust accretions, where liquid is...
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WO/2003/038361A1 |
A process for vitrifying contaminated waste material (30) includes providing a container (10) including an insulating lining (16), placing the waste material (30) in the lined container (10), subjecting the material (30) to an electric c...
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WO/2003/035307A1 |
The invention relates to a method for controlling the binder-release process for MIM- (Metal Injection Moulding), or CIM- (Ceramic Injection Moulding) pieces, in which a polymeric plastic, for example, is used as binder, which, by intera...
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WO/2003/031662A1 |
Process and apparatus for the treatment of contaminated fumes from a furnace for melting contaminated scrap metal, in particular remelting and recycling of waste aluminium metal, the furnace including at least one melting chamber (1) wit...
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WO/2003/027335A1 |
A method for refining a molten iron containing chromium wherein a gas containing oxygen is blown into the molten iron containing chromium under a reduced pressure or a reduced pressure and an atmospheric pressure, to carry out decarboniz...
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WO/2003/021174A1 |
The invention relates to a method of improving the temperature profile of a reheating furnace (1) in which oxygen-fuel burners are placed in the dead zone (3) of the furnace, in such a way as not to increase the volume of fumes by more t...
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WO/2003/019096A1 |
The invention relates to a metallurgical oven, comprising a vessel (10), a cover (20) for the vessel, a charging device (30) for charging items which are to be melted to said vessel. Said charging device comprises a rotatable retaining m...
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WO/2003/016807A1 |
The invention relates to a device for introducing hot gas into a heating surface pipe of a waste heat boiler, comprising an outer pipe that is connected to the boiler wall, particularly to the bottom of the pipe. Said device also compris...
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WO/2003/013694A1 |
Process to recover energy from a gas having a temperature of above 650 °C and an absolute pressure of more than 1.7 bar and comprising non-solidified alkali containing compounds and particles by performing the following steps: (a)coolin...
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WO/2002/103067A2 |
In order to melt down aluminium in an oven, a method is known whereby a starting material containing aluminium is supplied to an oven, is pre-heated in an upper region of the oven by means of oven flue gas, and is then heated by means of...
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WO/2002/103240A1 |
A melting device (41) capable of melting waste by cutting out air, comprising a melting burner (18) for burning brown gas in a melting chamber (11) and cutout devices (13a, 26, 34) for cutting out the entry of air into the melting chambe...
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WO/2002/101293A1 |
An exhaust gas treating method capable of treating exhaust gas containing PFC requiring high temperature in decomposing without by−producing CO, performing a complicated combustion control and being affected by variations in exhaust ga...
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WO/2002/097328A1 |
Provided is a regenerative thermal waste incineration system for incinerating waste using a regenerative thermal material. The regenerative thermal waste incineration system includes first and second ceramic layers for accumulating heat ...
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WO/2002/090830A1 |
Switching valve utilizing a rotatable seal suitable for use in a regenerative thermal oxidizer (10), and oxidizer (10) including the switching valve (20). The valve (20) of the present invention exhibits excellent sealing characteristics...
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WO/2002/088400A1 |
An oxygen fueled combustion system includes a furnace (14) having at least one burner, an oxygen supply for supplying oxygen having a predetermined purity, and a carbon based fuel supply for supplying a carbon based fuel. The oxygen and ...
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WO/2002/086402A2 |
In a near ambient pressure operated auto-thermal reformer fuel gas system, a precooler between the auto-thermal reformer and shift converter. The precooler includes a spraying water inlet, an inlet for the reformed gas and a packing of h...
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WO/2002/086027A2 |
The present invention relates to a gasification and slagging combustion system in which wastes are gasified to produce combustible gas, and the produced combustible gas is combusted together with unburned carbon to generate molten slag. ...
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WO/2002/076664A2 |
An apparatus and method for capturing the emissions from a controlled atmosphere treatment apparatus 10) of the type having at least one, and usually several, controlled atmosphere zones (14, 16, 18, 20) therein and exhaust stacks (22, 2...
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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/2002/057501A1 |
A heating furnace with regenerative burners and a method of controlling a furnace pressure; the heating furnace, comprising a plurality sets of regenerative burners having preheat zones, heating zones, uniform zones, and, as heat sources...
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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...
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WO/2002/050485A1 |
The invention relates to a device (14) for injecting fine-grained solid particles into a gaseous stream (12), whereby the fine-grained solid particles are fed to the device (14) in the form of a pneumatic supply stream. The device (14) c...
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WO/2002/046110A2 |
When waste glass that is highly contaminated with organic impurities is melted, these impurities cause the appearance of so-called 'black grains ' which cannot be eliminated in a subsequent refining process and which therefore impair the...
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WO/2002/038815A1 |
A method of operating a rotary hearth type reducing furnace, characterized in that a combustion gas generated in the furnace is held in a state, wherein the temperature of the gas is 800 ° C or higher, the concentration of carbon monoxi...
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WO/2002/027252A1 |
An apparatus for treating gaseous pollutants in an air stream such as a regenerative thermal oxidizer or a selective catalytic reduction system, including a reaction chamber (62) wherein the reaction media bed (64) within the chamber com...
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WO/2002/026655A1 |
A first alumina honeycomb structure, characterized in that it has an impurity content of 2 wt % or less and contains alumina as a primary component; and a second alumina honeycomb structure, characterized in that it contains alumina as a...
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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/2002/012813A1 |
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. ...
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WO/2002/007181A1 |
The invention relates to an oven for sealing a panel to a funnel, thus forming an envelope suitable for use in a display tube, comprising a tunnel structure (9) and at least one mount for conveying an assembly of a panel and a funnel thr...
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WO/2002/003003A1 |
A heat exchange method capable of suppressing a loading on a rotating motor and a wear of a seal part and simultaneously performing a recovery of heat from exhaust gas and a reduction in NOx, comprising the steps of detecting the density...
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WO/2002/003005A1 |
A method of operating a rotating regenerative heat exchanger capable of preventing the excessive contact of a rotatingly sliding part even when a furnace temperature varies largely, comprising the steps of providing a dilution damper (16...
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WO/2002/003004A1 |
A method of operating a rotating regenerative heat exchanger capable of preventing the excessive contact of a rotatingly sliding part even when a furnace temperature varies largely, comprising the steps of providing an exhaust gas coolin...
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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 ...
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WO/2001/098547A2 |
A method of processing flue dust that contains one or more compounds from a first group of zinc, lead and cadmium compounds, and contains iron compounds, involves heating the flue dust to cause a substantial portion of one or more of the...
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WO/2001/092801A1 |
A device (24) adapted for attachment to a thermal processing furnace (2), the device includes a housing (26) having first (8) and second (10) openings with a chamber (28) located therebetween, the second opening is operatively connected ...
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WO/2001/088207A1 |
The invention relates to a method for producing pig iron or liquid steel pre-products in a blast furnace, whereby at least one partial current of a topgas from a reduction shaft furnace (1) is freed from CO¿2? to a large extent, optiona...
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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/2001/088453A1 |
Switching valve and a regenerative thermal oxidizer (10) including the switching valve (20). The valve of the present invention exhibits excellent sealing characteristics and minimizes wear. The valve (20) has a seal plate (100) that def...
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WO/2001/085307A1 |
The present invention is directed to a process for the purification of flue gas, wherein flue gas is contacted with a carbonaceous material, said carbonaceous material comprising the solid carbonaceous residue of synthetic rutile product...
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WO/2001/081636A1 |
A device for discharging dust from a dry dust collector of a blast furnace (10) comprises a dust discharge valve (18) located downstream of a dust discharge opening (16) of the dry dust collector (10) and a fully enclosed dust conveying ...
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