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Patent Searching and Data


Matches 501 - 550 out of 9,955

Document Document Title
WO/2001/058816A1
An inductively heated drain tube fashioned of high temperature, electrically conducting materials is disclosed. An inductor (11) surrounds the drain tube (12). The inductor and drain tube are cast within a refractory material (14). The d...  
WO/2001/060123A1
A cooled mounting block (14) for an arrangement of a supersonic burner or lance (10) used in an electric arc furnace is designed to rest on a step (24) between a water-cooled side wall (23) and the hearth (21) of the furnace. The mountin...  
WO2000050969A8
Techniques for inducing a contact to invoke a resource prepared by a promoter when the resource resides on a network, includes generating a resource location description for the resource (1030). The resource location description includes...  
WO/2001/047656A1
The invention concerns a novel smelting furnace for molding, comprising a nozzle for charging which connects with a liquid metal storage tank, an outlet nozzle starting at said tank and leading to a taphole of the molds, wherein an addit...  
WO/2001/046479A1
The invention relates to a method for feeding a gas to a metallurgical vessel, the gas carrying a component in the gaseous and/or liquid state that can be condensed or evaporated. The gas is fed to the metallurgical vessel via one or mor...  
WO2000071761A8
The invention provides an electromagnetic brake (4) at the outlet channel (2) of a melting furnace or a vessel containing molten metal to brake or stop the flow of molten metal (3). A magnetic field (7) is imposed perpendicularly to the ...  
WO/2001/040728A1
A metallic water jacket of an arc furnace is provided with aluminium-diffused permeable coating formed by calorizing. The coating is 200-800 microns thick and it has an aluminium concentration of 10-50% by weight at its surface.  
WO/2001/037619A1
To re-ignite efficiently an arc-furnace arc extending between an electrode and a material to be melt, a second energy supply is provided to maintain a plasma link between the electrode and the melting material when the arc-furnace arc is...  
WO2000065878A3
The invention relates to a method and to a device for supplying an electric arc melting furnace with current. Said melting furnace is used to melt and heat metal, especially steel. The inventive device comprises a three-phase current sou...  
WO2000075588B1
The aim of the invention is to provide a means of also cooling the lower part of electric arc furnaces and/or resistance furnaces. To this end, said lower part - the actual melting vessel (4) - is surrounded with a jacket (9) at a certai...  
WO1997005438A3
The invention concerns an arc furnace, in particular a d.c. arc furnace, comprising a vessel and a cover which lies thereon and has an opening for at least one electrode provided with a movement unit for vertical displacement. According ...  
WO2000050969A3
Techniques for inducing a contact to invoke a resource prepared by a promoter when the resource resides on a network, includes generating a resource location description for the resource (1030). The resource location description includes...  
WO/2001/021843A1
The invention relates to a method for introducing bulk material into a metallurgical vessel, especially for introducing scrap into an arc furnace, which has at least one centrally situated electrode in an upper vessel part that is gas-ti...  
WO/2001/022017A1
An apparatus for clearing dust accretions in connection with a smelting furnace, particularly in the contact area between the uptake shaft and waste heat boiler of a flash smelting furnace. The apparatus comprises a wall element (1) arra...  
WO/2001/018271A1
The refining hearth (70) comprises an open vessel defining a first deep zone (78) having a predetermined depth, a second deep zone (82) having a predetermined depth, and a shallow zone (80) intermediate the first deep zone (78) and the s...  
WO/2001/014598A1
A method and apparatus for simultaneously supplying varying proportions of hot and cold direct reduced iron (DRI) material from a source of hot DRI for melting, storage, briquetting or transport. The system uses gravity to transport hot ...  
WO2000061823B1
In order to impede entrainment or trailing of molten slag (1) while tapping molten metal (2) from a metallurgical vessel (5) having a tap hole (1) in the bottom (13) of said vessel, the molten slag (1) is blown away from the surface of t...  
WO/2001/006021A1
A melting plant is provided for the production of molten metals, and in particular steel, primarily from metallic scrap or similar. The plant comprises a furnace with a closed furnace vessel (1) and at least one fuel burner (9, 10). The ...  
WO/2001/004064A1
The present invention relates to a process and apparatus to cast and form slag directly from the molten state into crystalline or amorphous products suitable for use as decorative and structural building and construction materials. Molte...  
WO/2001/004559A1
An arc melting equipment for cold pig iron source which does not require a transfer and feed device for cold pig iron source to a melting furnace, enables preheating of the next charge of cold pig iron source, and provides an extremely h...  
WO/2001/000885A1
The invention relates to a metallurgical vessel comprising a closeable bottom tap opening and comprising an inner shaft which is arranged in a coaxial manner with regard to the outer shaft of the furnace vessel, said outer shaft having a...  
WO/2001/001057A1
The invention relates to ferrous metallurgy and more particularly to the design of a multichambered steelmaking apparatus and to the method of steelmaking using this apparatus. The invention enables the yield of steelmaking process to be...  
WO/2000/079012A1
The invention concerns a method for producing melt iron comprising the following steps: a) reducing the iron ore particles to form pre-reduced iron comprising excess free carbon; b) hot process transfer of the pre-reduced iron in a smelt...  
WO/2000/075380A1
When melts are discharged from a metallurgic melting vessel through a discharge opening provided in the floor of the furnace, a hollow swirl (vortex) can form, resulting in an unwanted carry-over of slag. The aim of the invention is to p...  
WO/2000/075588A1
The aim of the invention is to provide a means of also cooling the lower part of electric arc furnaces and/or resistance furnaces. To this end, said lower part - the actual melting vessel (4) - is surrounded with a jacket (9) at a certai...  
WO/2000/075587A1
The invention relates to the emptying of melting vessels (1) by tipping. According to the invention, the melting vessel (1) is placed on column-shaped bases (6). During the tipping process, the melting vessel (1) is raised at the side an...  
WO/2000/076275A1
The aim of the invention is to improve the cooling of the bottom electrodes (1) of metallurgical melting vessels. To this end, a cooling plate (5) is situated beneath the support plate (2) on which the contact elements (3) are supported....  
WO/2000/075589A1
The aim of the invention is to create a pre-heating device which has an overall simple structural shape, which is provided for pre-heating feed materials, especially scrap metal, and which is used in a metallurgical smelting aggregate. T...  
WO/2000/073724A1
The present invention relates to a method for cooling the gas flow exiting through the uptake of a smelting furnace such as a flash-smelting furnace with a finely dispersed liquid sprays, which prevents the solid matter particles contain...  
WO/2000/074442A1
The invention relates to a method for the continuous determination of the distance between the electrode tip (12) and bath level (10) of the previous melt in an electric arc furnace so as to be able to exactly determine electric energy c...  
WO/2000/073515A1
The invention concerns a method for producing liquid metal in a smelting furnace coupled to a heat treatment furnace, which consists in: (a) subjecting the metal particles, generally oxidised, to a heat treatment in the heat treatment fu...  
WO/2000/073519A1
This invention relates to equipment for the feed of pulverous material to a concentrate burner of a suspension-smelting furnace, so that the feed of solid finely divided material into the furnace is distributed evenly in the concentrate ...  
WO/2000/071953A1
The invention relates to a method for holding and tapping molten metals and to a metallurgical vessel which comprises a tap opening arranged in the bottom area of the vessel and comprises at least two electrodes that are connected to an ...  
WO/2000/071761A1
The invention provides an electromagnetic brake (4) at the outlet channel (2) of a melting furnace or a vessel containing molten metal to brake or stop the flow of molten metal (3). A magnetic field (7) is imposed perpendicularly to the ...  
WO/2000/071937A1
An improved mass fuel combustion system can be designed in a variety of embodiments and alternatives, including designs which include independent gas feeds, independent gas pulsing, independently controllable vibration systems and an ove...  
WO/2000/070102A1
The invention relates to a device for spraying fuel and/or oxygen into a metallurgic melting furnace, especially an arc furnace. Said device comprises supply conduits for fuel (2), oxygen (4) and cooling water (20), a diagonally arranged...  
WO/2000/070285A1
An electric arc furnace that can be continuously charged with ferrous materials, that can continuously melt the incoming charged materials, and that can semicondituously tap molten steel. The furnace comprise a body having a central melt...  
WO/2000/068441A1
The invention relates to an arrangement in a direct current arc furnace, especially for steel making, comprising a fusion electrode and a base electrode, whereby said arrangement is easy to create from a mechanical engineering point of v...  
WO/2000/065878A2
The invention relates to a method and to a device for supplying an electric arc melting furnace with current. Said melting furnace is used to melt and heat metal, especially steel. The inventive device comprises a three-phase current sou...  
WO/2000/065102A1
The invention relates to a method and a device for melting down material containing metal, preferably finely particulate material containing metal, such as sponge iron, in a metallurgic melting furnace (1). The molten metal (5) and a lay...  
WO/2000/061823A1
In order to impede entrainment or trailing of molten slag (1) while tapping molten metal (2) from a metallurgical vessel (5) having a tap hole (1) in the bottom (13) of said vessel, the molten slag (1) is blown away from the surface of t...  
WO/2000/060297A1
The invention relates to a metallurgical vessel (1) comprising a tapping device (5) for the slag-free extraction of molten metal (3) from a molten metal bath (3) located in said vessel (1). According to the invention, a first limb (11) o...  
WO/2000/058680A1
A method and device for transferring metal, for example from a tapping vehicle (9) to a casting furnace or holding furnace (2). The casting furnace or holding furnace (2) is provided with a channel or pipe (1) which extends from the top ...  
WO/2000/055558A1
The present invention can be used in the field of machine-tooling, in the building industry as well as in metallurgy and relates to a device for producing semi-finished products made of aluminium foam. This device ensures a uniform heati...  
WO/2000/053987A1
The invention concerns a method for triggering casting in a light-arc furnace, the arc furnace comprising a bell-shaped end wherein is located a taphole of said furnace, the method including the following steps: introducing a temperature...  
WO/2000/050969A2
Techniques for inducing a contact to invoke a resource prepared by a promoter when the resource resides on a network, includes generating a resource location description for the resource (1030). The resource location description includes...  
WO/2000/046561A1
A water-cooling panel for the furnace wall and furnace cover of an arc furnace that is capable of securing a service life equal to or greater than that of a water-cooling panel of steel plate weld construction, steel piping construction,...  
WO/2000/044948A1
A method of melting metal scrap in a molten melting media, the method comprising (a) providing a source of molten melting media in a furnace (2), the melting media in the furnace (2) having a first surface level; (b) providing a first me...  
WO/2000/043720A1
Aspiration system to reduce the losses of fine materials and powders from an electric arc furnace (11) having a lower hearth (12) suitable to contain the bath of metal material being melted (13), a substantially cylindrical chamber (14) ...  
WO/2000/043719A1
System to plug the roof (10) of an electric arc furnace (11) having a main chamber or melting volume (25) arranged below the roof (10) and at least one electrode (15) introduced into the main chamber (25), the system comprising an upper ...  

Matches 501 - 550 out of 9,955