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WO/2003/066256A1 |
A dose valve with eccentric opening function with power torque in use when gravitation casting of liquid metal (Fig. 1), where the outlet valve rod (3a) goes centric inside the inlet valve rod (5a) that again form a seal between the open...
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WO/2003/066913A1 |
A method of heating molten aluminium flowing in a heated trough member comprising the steps of providing a source of molten aluminium and providing a trough member comprised of a first side (14) and a second side (18), the first and the ...
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WO/2003/064080A1 |
The present invention relates to the casting of molten metal, in particular of molten steel. The invention relates to a device allowing a safe opening of a blockage of a taphole of a metallurgical vessel equipped with a slide gate valve ...
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WO/2003/062480A1 |
The invention relates to a method for production of metals or metal alloys of high purity, in particular metallic chrome, whereby metallic elements are treated under pre-determined conditions of temperature and pressure. Said elements co...
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WO/2003/060169A1 |
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/2003/054464A1 |
The invention relates to a method of insulating a furnace with the aid of free-standing elements of insulating material whose volume decreases at high temperatures. The invention is characterised in that the insulating elements are wedge...
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WO/2003/050314A1 |
A charging device for bulk material comprises a rotor (22) having a substantially vertical axis of rotation (20'), a first drive (32) for rotating the rotor (22) and a chute (38) supported by the rotor (22) so as to be rotated with the l...
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WO/2003/042417A1 |
A system wherein oxygen is provided to a shaft furnace in addition to the blast air, and a flame shroud (23) is formed around the oxygen stream (20) enabling deep penetration of the oxygen into the furnace for not only combusting carbona...
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WO/2003/038133A2 |
A parts container for minimizing oxidation of heat-treated parts during transfer in an oxygen-containing environment. The container includes: a heat-resistant vessel having an interior space and including oppositely positioned first and ...
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WO/2003/036210A1 |
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/2003/036211A1 |
A rotary hearth furnace is provided to simplify detachment and assembly operations of a reduced iron discharging screw. At both side walls of an insulating housing 2a constituting in part of a furnace body 2 of a rotary hearth furnace 1 ...
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WO/2003/033981A1 |
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/2003/033982A1 |
The invention relates to a melt launder (1, 9, 10) comprising a bottom and edges, said melt launder being particularly meant to be used for tapping a molten phase, such as slag, from a smelting furnace, which melt launder is manufactured...
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WO/2003/031895A1 |
The invention relates to a set of slats for an endless conveyor comprising a plurality of perforated slats. Each of the slats preferably has a shape like a box with a rectangular cross section. The invention also relates to a curing oven...
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WO/2003/031658A1 |
A process and apparatus for supplying solid feed materials for a direct smelting process to solids injection lances of a direct smelting vessel is disclosed. The feed materials supply apparatus includes a supply line (L) for conveying ir...
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WO/2003/029499A1 |
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/2003/029740A1 |
In order to solve the problem of raw material blocking or getting caught even in the case of small−scale processing, to make it easier for raw material to form a single layer on the hearth, to ensure uniform feeding widthwise of the fu...
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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/2003/025487A1 |
The present invention relates to a motor-less automatic retraction device that can insert a vision tube capable of monitoring the inside of a furnace to mange the internal state of the furnace and control the temperature of the furnace i...
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WO/2003/023078A1 |
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/2003/021175A1 |
The invention relates to a system for heating and otherwise treating work in a production system for mechanical products such as motors, and also relates to a production system including this system, adapted to reduce the line stock, kee...
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WO/2003/021176A1 |
A continuous pusher furnace (10) includes a product carrier assembly (36) incorporating a traveling gas barrier (46). The product carrier assembly comprises a plate (38) disposed to receive product thereon and a gas barrier extending upw...
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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/2003/016579A1 |
A device for processing iron alloys in a vessel is described. A reaction chamber (3) for receiving at least one alloying material is arranged in the bottom of the vessel (1) and a sprue (2) of refractory material is arranged concentrical...
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WO/2003/014646A1 |
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/2003/011778A2 |
Rolls for generally conveying sheets, such as of steel or glass over a roller typically have a steel mandrel and fiber−containing roll cover (1), with the fiber roll cover (3) pressed between end plates (4). In a roll end assembly incl...
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WO/2003/010476A1 |
A rotary hearth furnace for use in the iron and steel industry comprises a furnace (12, 112) with plan in the shape of an annulus, closed at the bottom by a rotary hearth (14, 114), lined at the top with refractory material (15, 115), an...
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WO/2003/010477A1 |
An induction melting furnace (10) comprises a melt chamber (12) for heating a melt either directly by magnetic induction, or indirectly by magnetic induction heating of the melt chamber (12), or a combination of the two, and a meter cham...
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WO2002081759A9 |
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/2003/010343A1 |
A method for producing a single layer in which a lump material fed onto hearth is not stacked and is kept in a single layer without causing problems that the lump material is damaged or an atmosphere conditioning agent laid in layers on ...
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WO/2003/004198A2 |
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/2003/002768A1 |
The present invention refers to an equipment for feeding and distributing charge and fuel in furnaces of rectangular cross section, comprising movable feeding tubes to distribute along the longitudinal section and the cross section of th...
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WO/2003/002925A1 |
A multiple hearth furnace comprises at least one cleaning lance inlet port (52, 54) radially leading into one of its hearth chambers (24). A cleaning lance assembly (40', 40'') includes an elongated mount (42) and at least one cleaning l...
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WO/2003/000610A1 |
Commercially obtained combustion aids typically consist of cordierite, fused silica or Si/SiC, which cannot meet the high thermal and also mechanical requirements in the necessary context, or only in a highly limited manner. The inventio...
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WO/2002/103066A1 |
The invention relates to a roller table roll used, in particular, for conveying furnace-heated metallic strip material, cast billets made of steel and the like. The roller table roll comprises a roll shaft (4) and a roll casing (1) that ...
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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/2002/101309A1 |
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...
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WO/2002/100575A1 |
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/2002/101310A1 |
A sleeve for slag outlet of a waste gasifying melting furnace, comprising an inner tube part formed with a refractory hard to be molten down by molten slag and an outer tube part formed with a refractory installed on the outer surface of...
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WO/2002/100576A1 |
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/2002/101102A1 |
The invention relates to a method of recycling metallic coated scrap pieces of which the liquidus temperature of the coating layer is lower than the solidus temperature of the core layer, such as brazing sheet scrap pieces, or metallic c...
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WO/2002/097139A1 |
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/2002/090017A1 |
A sliding nozzle unit in which a face pressure load is released by inserting a cotter into a press member provided in an open&sol close metal frame and sliding the cotter on an inclination block provided on the side face of a sliding met...
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WO/2002/088276A1 |
The present invention concerns a wall structure and a method for constructing such an anchored wall structure. The wall structure is designed for use in a furnace or the similar, where the structure is exposed to cyclical thermal load. T...
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WO/2002/086171A1 |
The invention relates to steel processing in a ladle used for ferrous metallurgy. The inventive method for agitating steel in a ladle consists in blowing steel from the bottom with gas or a gas-powder mixture through blowing units. At le...
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WO/2002/086406A1 |
A method of operating multiple hearth furnace (10) with a plurality of vertically aligned hearth floors (361, 362, 363, 364, 365), comprises in particular following steps. A first material is fed onto the uppermost hearth floor and moved...
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WO/2002/083279A1 |
The invention relates to a method and system for producing calcined material made from raw material, particularly raw cement material. The raw material is initially ground to form raw meal; it is subsequently stored in at least one silo ...
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WO/2002/081403A1 |
The invention relates to a high-temperature resistant aluminium oxide and zirconium dioxide based fine-ceramic sintered material which is produced by mixing particle-shaped initial compounds in water and subsequent sintering at temperatu...
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WO/2002/077297A1 |
Apparatus for transferring hot material between a preprocessing plant and an electric furnace has an enclosed housing extending between the plant and the furnace and within which a controlled atmosphere is maintained, at least one bin ha...
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WO/2002/075004A1 |
The coated device contains a coating for use with corrosive environments at high temperatures. The device has a bond coat consisting essentially of, by weight percent, 0 to 5 carbon, 20 to 40 chromium, 0 to 5 nickel, 0 to 5 iron, 2 to 25...
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