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Patent Searching and Data


Matches 401 - 450 out of 10,351

Document Document Title
WO/2007/006558A3
An apparatus for the combustion of gas exiting from an electric arc furnace for the preheating of scraps entering the furnace itself foresees an insertion device of comburent substance into a preheating chamber or loading tunnel of the s...  
WO/2007/006558A2
An apparatus for the combustion of gas exiting from an electric arc furnace for the preheating of scraps entering the furnace itself foresees an insertion device of comburent substance into a preheating chamber or loading tunnel of the s...  
WO2006092549A3
Continuous production of liquid steel or alloy is performed in a closed loop melt circulation system comprised of a reduction arm (1) and a post-combustion arm (2) with product molten metal being circulated by gas-lift pump (3) and sipho...  
WO/2006/131384A1
The invention relates to a smelting or reduction furnace (2), in which the charge stock (9) is supplied using feed pipes (17). Each feed pipe (17) has a mouthpiece (18) that is not cooled and is configured from an uncooled wear-resistant...  
WO/2006/131372A1
The invention concerns a method for extracting a metal from a slag containing the metal, in which the liquefied metal-containing slag is heated in at least one arc furnace (1, 2). In order to develop an improved method for extracting, in...  
WO/2006/125662A1
The invention relates to a melting or holding furnace (1) with a furnace chamber (4) surrounded by a housing (3), which chamber holds the melt with a maximum filling level. The furnace also comprises an outlet opening for transferring th...  
WO2006089870A3
Melting plant (10) and relative method for the production of steel, comprising a melting furnace (11) fed laterally with a metal charge conveyed towards the melting furnace (11) by means of a conveyor (12) disposed at least partly inside...  
WO2006089971A3
An electric arc furnace (10) has an outer shell (12) and an inner refractory lining (24). During its operation the electric arc furnace (10) contains a bath (28) of molten metal which has a minimum and a maximum operational level (32). A...  
WO2006089867A3
Device (10) for loading a metal charge in a melting furnace (11) comprising a hearth (12) having an aperture (17). The device (10) comprises a main conveyor (15) terminally associated with a connection conveyor (16) which cooperates with...  
WO/2006/124422A3
A method for control of the air/fuel ratio of the burner(s) (excess air) of a thermal cracker which includes three steps. The first step is to direct a wavelength modulated beam of near infrared light from a tunable diode laser through c...  
WO/2006/124422A2
A method for control of the air/fuel ratio of the burner(s) (excess air) of a thermal cracker which includes three steps. The first step is to direct a wavelength modulated beam of near infrared light from a tunable diode laser through c...  
WO/2006/117426A1
The invention relates to a steel-structured, water-cooled electric arc furnace lid that is fitted in a gas-tight manner on top of the furnace vessel and provided with lead- throughs for electrodes and apertures for material feed, the und...  
WO/2006/113969A1
A direct smelting vessel (3) for operating a molten bath-based direct smelting process under pressure conditions in the vessel is disclosed. The vessel includes a forehearth (67) for tapping molten metal continuously from the vessel. The...  
WO/2006/111579A1
Means for conveying hot granular material from a loading zone to an arc melting furnace (3) , comprising a horizontal trough (1) , trough vibration generators that cause the granular material to move along the trough, a sluice gate (4) t...  
WO/2006/108691A1
An equipment for the measurement and control of load material and scrap metal feeding into an electrical arc furnace, including an automatic control device for feeding control of load material or scrap according to the energy supplied to...  
WO2005106048A3
A heat exchanger system (44) for iron making furnaces and their supporting exhaust and cooling systems including at least on panel (1-4) of sinuously winding piping (50) having an inlet (56) and outlet (58) with attached input (84) and o...  
WO/2006/092654A8
A multilevel carborundum electric heating pipe type vitrification furnace comprises a plurality of segments of furnace bodies including a casing with an insulation layer provided inside, wherein, the insulation layer is provided with a s...  
WO/2006/092549A2
Continuous production of liquid steel or alloy is performed in a closed loop melt circulation system comprised of a reduction arm (1) and a post-combustion arm (2) with product molten metal being circulated by gas-lift pump (3) and sipho...  
WO/2006/092053A1
Binding systems are described for applying compressive forces on the refractory hearth and/or refractory sidewall of a circular furnace having an outer metal shell which may be segmented. One preferred binding system comprises a tensioni...  
WO/2006/092654A1
A multilevel carborundum electric heating pipe type vitrification furnace comprises a plurality of segments of furnace bodies including a casing with an insulation layer provided inside, wherein, the insulation layer is provided with a s...  
WO/2006/089868A1
Connection conveyor (10) used for loading a metal charge into a melting plant or furnace (11) of the type that uses a loading system with a main conveyor (15) and introduction of the charge from one side of the furnace (11) . The connect...  
WO/2006/089867A2
Device (10) for loading a metal charge in a melting furnace (11) comprising a hearth (12) having an aperture (17). The device (10) comprises a main conveyor (15) terminally associated with a connection conveyor (16) which cooperates with...  
WO/2006/089869A1
Cover (10) for a connection conveyor used for loading a metal charge into a melting furnace (11) of the type that uses a loading system with a main conveyor (15) and introduction of the charge from a lateral aperture (17) of the furnace ...  
WO/2006/089897A1
Conveyor apparatus (10) for conveying a metal charge towards a container (15) of a melting plant (H)/ comprising at least an oblong bearing structure (20), on which a conveyor channel (21) is fixed and on which a vibration device (32) is...  
WO/2006/089870A2
Melting plant (10) and relative method for the production of steel, comprising a melting furnace (11) fed laterally with a metal charge conveyed towards the melting furnace (11) by means of a conveyor (12) disposed at least partly inside...  
WO/2006/089971A2
An electric arc furnace (10) has an outer shell (12) and an inner refractory lining (24). During its operation the electric arc furnace (10) contains a bath (28) of molten metal which has a minimum and a maximum operational level (32). A...  
WO/2006/087212A2
The invention concerns a furnace system for melting down metallic or metal-containing feed material in which it is possible to pivotably place on a vessel bottom part (14, 15) of a furnace (A, B) an electrode arrangement with cover (6) f...  
WO/2006/087212A3
The invention concerns a furnace system for melting down metallic or metal-containing feed material in which it is possible to pivotably place on a vessel bottom part (14, 15) of a furnace (A, B) an electrode arrangement with cover (6) f...  
WO/2006/085789A1
The invention relates to metallurgy, in particular to a steel production in arc furnaces. The inventive method consists, in lifting, prior to the container emptying, the level of a metal input into an outflow opening, in maintaining said...  
WO2006061530A3
The invention concerns a method for melting a composition of raw materials including introducing the composition in an oven to form a layer (2) at the surface of the molten pool (4). An oxycombustion burner (10) is arranged above the poo...  
WO/2006/080269A1
This invention provides an electron beam melting apparatus and a melting method that, in producing an ingot by dissolving a metal with an electron beam, can suppress the occurrence of new impurities in the ingot production, are less like...  
WO/2006/072363A1
The invention relates to a hearth furnace comprising a burner for melting metals, especially non-ferrous metals, and an oxygen lance (25) for the post-oxidation of carbonisation gases.  
WO/2006/061530A2
The invention concerns a method for melting a composition of raw materials including introducing the composition in an oven to form a layer (2) at the surface of the molten pool (4). An oxycombustion burner (10) is arranged above the poo...  
WO/2006/047857A1
A regenerative burner device for a furnace and a method of removing contaminants from such a device. The burner device includes a burner for introducing heat and waste gas into a furnace during ignition when supplied with fuel and a comb...  
WO/2006/040394A1
The object of the invention is a metallurgical furnace (1), the wall of which comprises an external steel structure (5) and a refractory lining (3) inside the steel structure, the lining (3) consisting of at least one course of bricks (4...  
WO/2006/040393A1
The invention relates to the structure of the bottom area of a metallurgical furnace (1), comprising a bottom part (2) and a wall (3), both of which include a steel structure (6, 21) forming the external surface, and a refractory inner b...  
WO2005118889A3
The invention relates to a tapping tube for a metal fusion vessel, for example, a converter or an arc furnace.  
WO/2006/027413A1
The invention relates to a device for distributing hot feed into the feeding silos of a metallurgical furnace. The device comprises an inlet pipe for receiving the feed from the outlet of a previous process stage. A batching pipe is fitt...  
WO2005052196A3
Method and plant for pre-heating, transforming and melting a metal charge comprising metal scrap, in an electric arc furnace (12) associated with a tunnel (11) to transport, pre-heat and discharge the scrap. The furnace (12) comprises a ...  
WO/2006/021515A1
The invention relates to a method for operating an electric-arc furnace comprising at least one electrode and one tapping method step. At the beginning of the tapping step, the energy supply to the at least one electrode (2) of the elect...  
WO2005071335A3
The invention provides for a pressure ring assembly [10] suitable for use in an electric arc furnace, wherein the pressure ring assembly [10] comprises at least two pressure ring segments [22] engaging each other, at least one contact sh...  
WO/2006/016201A1
The invention relates to a door closure device for an electric furnace, which is designed to seal same. The invention comprises a conical or prismatic metallic closure which is cooled with water and which is positioned in a same-shaped h...  
WO/2005/118889A2
The invention relates to a tapping tube for a metal fusion vessel, for example, a converter or an arc furnace.  
WO/2005/116558A1
A binding system for applying a vertical compressive force to the refractory walls of a rectangular or circular furnace comprises a compressive member engaging a laterally extending surface of the furnace wall and a support member to whi...  
WO/2005/106048A2
A heat exchanger system (44) for iron making furnaces and their supporting exhaust and cooling systems including at least on panel (1-4) of sinuously winding piping (50) having an inlet (56) and outlet (58) with attached input (84) and o...  
WO/2005/103305A1
Metallurgical processing installation comprising a metallurgical vessel lined internally with water cooled panels. A vessel access tower (61) fits around vessel (11) and supports a coolant flow system (62) to provide for flow of cooling ...  
WO2004074523A3
A metal melting closed furnace which includes a main chamber (22), a circulation well (28) connected to the main chamber (22) by a communications passageway (32) and a vortex well (84) having an exit outlet for molten metal into the main...  
WO2005040433A3
The present invention relates to a direct smelting plant and a direct smelting process for producing molten metal from a metalliferous feed material, such as ores, partly reduced ores, and metal-containing waste streams, the latter of wh...  
WO/2005/090613A1
Method of constructing and installing a direct smelting unit comprising a smelting vessel (11). The vessel is prefabricated off site in three modules (11A, 11B, 11C) which are then transported to the installation site where they are hois...  
WO2004058431A8
A method and apparatus for optimizing melting of titanium for processing into ingots or end products. The apparatus provides a main hearth (56), a plurality of optional refining hearths, and a plurality of casting molds (58a, 58b) or dir...  

Matches 401 - 450 out of 10,351