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WO/2004/048869 |
A material feeding apparatus for a rotary hearth furnace capable of uniformly and dispersedly feeding agglomerated materials, which tends to be pulverized, deformed, or adhered to each other into the rotary hearth furnace by using a flat...
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WO/2004/044510 |
The invention concerns a device for low inertia, fast and reproducible controlled balancing of overpressure or depression spaces. Said device mainly consists of a closure cover (1) adapted to the geometry of the space wall, comprising at...
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WO/2004/044509 |
An injection lance (4) for injecting a fluid over a predefined target area (2A,2B) within a system includes a support block (10) with an inlet side (14) and an outlet side (16). A plurality of channels (12) are disposed non-parallel with...
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WO/2004/044511 |
The invention relates to a metallurgical melting vessel comprising a fireproof ceramic lining through which a tuyere arrangement (20) for introducing a fluid into a molten metal extends. Said tuyere arrangement comprises the following el...
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WO/2004/042105 |
The invention relates to a method for preparing a coating for pyrometallurgical furnace cooling elements. The purpose of the invention is to attain a method for the formation of a coating on a metallurgical furnace cooling element in a s...
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WO/2004/038317 |
The invention relates to a metallurgical melting container.
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WO/2004/036131 |
An electric furnace includes a stationary lower shell having a sloping floor extending downwardly to a tap hole to always maintain a sufficient ferrostatic head three times the tap hole for slag free tapping. The configuration of the ref...
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WO/2004/035837 |
An existing steel making installation having a basic oxygen furnace facility is converted to an electric arc furnace facility for refining steel by modifying the furnace support pedestals to form spaced apart horizontal rail support pads...
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WO/2004/033976 |
A furnace binding and adjustment system for maintaining a refractory furnace hearth under compression utilizes a plurality of buckstays connected at their upper and lower ends by tie members. A fluid-pressurized tensioning device, prefer...
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WO/2004/011866 |
The invention relates to a method for manufacturing a cooling element (1) to be used in the structure of a furnace used in metal processes, such as a flash smelting furnace, a blast furnace, an electric furnace or other metallurgical rea...
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WO/2004/007778 |
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/2004/007775 |
The present invention provides a method of reducing metal oxide material to metal comprising the steps of forcibly circulating molten carrier material in a closed loop path serially through a charge reduction zone on one arm of the loop,...
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WO/2004/001309 |
The invention relates to heat treatment of articles. In order to extend the functional capabilities of an electric furnace and improve the quality of the heat treatment therein, the power-supply system of an electric vacuum-annealing fur...
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WO/2003/106908 |
A flow inducement or stirring apparatus (500) includes electromagnetic induction apparatus in the form of a generally rectangular box (501) connected to an inclined end wall (502) of a cradle or port (503) of the apparatus 500, being gen...
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WO/2003/095685 |
A scrap charging apparatus for an electric arc furnace uses a skip hoist to supply scrap to a holding bunker having diverging end walls extending between converging side walls. The containment space for the scrap is increased by this wal...
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WO/2003/095685 |
A scrap charging apparatus for an electric arc furnace uses a skip hoist to supply scrap to a holding bunker having diverging end walls extending between converging side walls. The containment space for the scrap is increased by this wal...
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WO/2003/089863 |
The invention relates to a method for manufacturing a cooling element (1, 11, 17) to be used in a pyrometallurgical reactor, said cooling element being composed of at least two elements, said elements being made by continuous casting of ...
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WO/2003/087688 |
The invention relates to a method for production of molten metal in an electric furnace into which are supplied the metallic material, electric energy, a gas comprising oxygen and optionally a fuel for control of a final temperature and/...
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WO/2003/084883 |
The invention concerns a method for waste combustion and vitrification wherein at least one plasma jet is associated with a high frequency continuous direct induction melting device (4). The crucible consists of a continuous outer shell ...
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WO/2003/085141 |
The invention relates to a method and a device for producing carbon steels or stainless steels by blowing pig iron in an electric arc furnace (1) comprising an electrode system or an insertable oxygen lance or in a converter vessel (17) ...
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WO/2003/084884 |
An electric furnace (1) for melting vitrifiable materials (V), in particular for the manufacture of vitreous mosaic materials and ceramic frits as well as for the vitrification of waste, where the primary material is frequently changed, ...
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WO/2003/085140 |
The invention relates to a method and an installation for producing stainless steel, especially high-quality steel containing chromium or nickel, directly from high-phosphorus, liquid pig iron. The aim of the invention is to provide a me...
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WO/2003/068995 |
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/2003/068700 |
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/2003/064922 |
Incinerator improvements involving seals around a pulsing hearth floor (158) or between moving hearth floor sections. The seals (167, 168, 169) reduce or prevent the passage of contaminating gases into or out of an incinerator chamber ha...
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WO/2003/060169 |
In the metallurgical treatment of metals, metal melts and/or slags in a metallurgical unit or melting vessel, especially in electric arc furnaces, injection devices (1) are used for blowing in or up oxygen-rich gases (6) and/or carbonace...
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WO/2003/056044 |
The invention concerns an alumnium melting method, which consists in introducing solid aluminium into a furnace (2), melting the aluminium to form an aluminium bath (4), detecting variations in carbon monoxide (CO) and/or hydrogen (H2) c...
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WO/2003/038361 |
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/2003/036210 |
The invention relates to an arrangement (1, 12, 16) for continuously tapping a molten phase, such as matte, from a smelting furncae, such as a flash smelting furnace, said arrangement comprising a matte tapping hole (5) provided in the f...
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WO/2003/034791 |
A mounting enclosure (14) and an improved mounting arrangement for apparatus used in metal melting, refining and processing, particularly those apparatus adapted for steel making in an electric arc furnace (15), such as burners (10), lan...
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WO/2003/033981 |
The invention concerns a replacement method and a device for assembling and disassembling modules of an electric arc furnace. Said method consists in lifting and pivoting the furnace cover or in only lifting it; when disassembling, it co...
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WO/2003/029499 |
The invention relates to an arc furnace (1), which can be tilted or remains stationary for tapping the melt or the slag and which comprises an eccentric and/or centric tap (9; 12). The invention also relates to a method for operating an ...
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WO/2003/026745 |
A method for rendering polychlorinated biphenyl harmless, which comprises feeding a liquid containing polychlorinated biphenyl and a mixture of an aluminum oxide and silicon dioxide to an ultrasonic emulsifier (2), conducting an emulsifi...
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WO/2003/023078 |
A metal melting closed furnace (10) which includes a main chamber (26), a circulation well (28) connected to the main chamber (26) by a communications passageway and a vortex well (84) having an exit outlet for molten metal into the main...
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WO/2003/022005 |
An arc furnace that utilizes a combined DC arc system and an AC joule heating system to melt the waste disposed therein and to keep the waste material in a molten condition. The DC arc system utilizes the AC joule heating electrodes as p...
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WO/2003/019096 |
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/2003/014646 |
Molten metal is tapped from an aluminium electrolytic furnace to a crucible (10) having a substantially circular cross-section supported in a transporting device with the axis (20) of the crucible (10) substantially horizontal. The cruci...
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WO/2003/004198 |
A method and apparatus is disclosed to improve the metal yield by adjusting the tilt angle of a tilting vessel (2, 102) having a submerged tap hole (4, 104). The tilt angle is adjusted in response to parameters inherent in the pouring pr...
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WO/2002/103240 |
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/2002/100576 |
A molten metal treatment furnace (10) with metal treatment and level control includes a heating chamber (12) for containing and heating a supply of molten metal (60), a pump (22) connected to the heating chamber (12), a molten metal trea...
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WO/2002/100575 |
A dosing furnace (10) with metal treatment and level control includes a holding chamber (12) for containing a supply of molten metal (50), a pump (22) connected to the holding chamber (12), a molten metal treatment chamber (16, 18) locat...
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WO/2002/099143 |
A method and an apparatus for advantageously introducing a flame and a high velocity oxidizing gas into a furnace for metal melting, refining and processing, particularly steel making in an electric arc furnace. The steel making process ...
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WO/2002/097378 |
A slag layer thickness measuring method used for converters and the like, featured by less error and low cost&semi a molten metal layer surface level position measuring method using the slag layer thickness measuring method&semi and a de...
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WO/2002/097139 |
Process and apparatus for the continuous degassing and/or processing of liquid-phase steel, comprising the steps of: collecting said liquid phase in an open air collecting vessel (8), that comprises one or more baffles (12, 17) partition...
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WO/2002/096159 |
An AC arc furnace (10) has a plurality of electrodes (12a-c) arranged inside a furnace chamber (14) enclosed by a shell (24). Each electrode is electrically connected to an electrode power source in series through corresponding auxiliary...
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WO/2002/090271 |
A method for melting glass forming batch material includes charging the glass forming batch material (6) to a glass melting apparatus (1); impinging a flame (7) proximate to the surface (4) of the batch materials to form a glass melt (8)...
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WO/2002/088400 |
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/2002/084192 |
The invention relates to a cooling element for cooling a metallurgical furnace, in which the side of the furnace shell (113, 213, 313) that faces the interior of the furnace (O¿i?) is lined with fireproof material (114, 214, 314). Said ...
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WO/2002/081759 |
The invention relates to a device for preventing slag from flowing along when tapping a molten metal out of a metallurgical vessel, whereby the tap opening of the vessel is formed out of interchangeable pipes, which are located one above...
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WO/2002/081757 |
A cooling plate (10) for a metallurgical furnace, such as e.g. a blast furnace, comprises a cast cooling plate body (12) made of a ferrous metal and at least one cooling pipe (18) cast in the cooling plate body (12). The cooling pipe (18...
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