Patents
Sitemap › F27 - Furnaces; Kilns; Ovens; Retorts › F27B - Furnaces, kilns, ovens, or retorts in general; Open sintering or like apparatus › F27B 3 - Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces
Patents for F27B 3 - Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces (6,383)
12/2003
12/24/2003WO2003106908A1 Electromagnetic induction apparatus and method of treatment of molten materials
12/24/2003CA2490024A1 Electromagnetic induction apparatus and method of treatment of molten materials
12/18/2003US20030233212 Indirect gas species monitoring using tunable diode lasers
12/10/2003EP1368995A2 Electrode seal for arc furnace
12/10/2003CN1130539C Reflection-type melting keeping furnace
12/09/2003US6660219 Method and device for emptying metallurgic melting vessels by tipping
12/09/2003CA2243748C Straight hearth furnace for titanium refining
12/09/2003CA2173877C Bottom electrode for a metallurgical vessel
12/03/2003CN1460124A Method and device for preventing slag from flowing along when tapping molten metal
12/02/2003US6655955 Coolable arched roof
12/02/2003US6655304 Mass fuel combustion system
11/2003
11/26/2003CN2588298Y Porous heat flow-conductive board
11/26/2003CN1458981A Direct smelting process and apparatus
11/26/2003CN1128765C Resistance melting furnace
11/25/2003US6652271 Combustion in a porous wall furnace
11/25/2003CA2178613C Submerged arc furnace with vertically movable frame
11/20/2003WO2003095685A1 Scrap charger
11/19/2003CN1456858A Melting furnaces
11/13/2003WO2002058864A8 Molten metal holder furnace and casting system incorporating the molten metal holder furnace
11/13/2003WO2002058863A8 Pressurized molten metal holder furnace
11/12/2003EP1360876A2 Power control system for ac electric arc furnace
11/12/2003CN1455854A Oxy-fuel combution system and uses thereof
11/12/2003CN1127739C Continuous sintering plant integrated with glove box for maintenance use
11/05/2003CN2585152Y Semi-closed cover dust-collection device
10/2003
10/30/2003WO2003089863A1 A method for manufacturing a cooling element and a cooling element
10/30/2003DE10252276C1 Metallurgical melting apparatus used as an electric furnace comprises a refractory ceramic lining through which extends a nozzle arrangement for introducing a fluid into a molten metal
10/29/2003EP1356246A1 Method and apparatus for feeding a stack of metallic sheets into a melting furnace
10/29/2003CN2583593Y Differential compensation cover
10/23/2003WO2003087688A1 Method for production of molten metal in an electric furnace
10/23/2003US20030197315 Apparatus for treating molten metal having a sealed treatment zone
10/23/2003US20030197313 Elevated discharge gas lift bubble pump and furnace for use therewith
10/22/2003CN2581913Y Volume semi-closed smoke collecting hood for refining furnace
10/22/2003CN1125308C Six-phase electrode ore-smelting furnace
10/16/2003WO2003085141A1 Method and device for producing carbon steels or stainless steels by blowing high-phosphorus pig iron in an electric arc furnace or in a converter vessel
10/16/2003WO2003085140A1 Method and installation for producing stainless steel, especially high-quality steel containing chromium or nickel chromium
10/16/2003WO2003084884A1 Method and electric furnace for melting vitreous materials
10/16/2003WO2003084883A1 Vitrification furnace and method with dual heating means
10/16/2003US20030193986 Apparatus for arc-melting cold iron source and method thereof
10/15/2003EP0914218B1 Apparatus and method for hazardous waste vitrification
10/09/2003WO2003004198A3 Method and apparatus for metal pouring
10/08/2003CN1447896A Bottom structure for smelting furnace
10/07/2003US6629839 Charging carbon material onto flat moving hearth of furnace to form layer preventing molten metal from directly contacting hearth, charging raw material layer onto carbon layer, forming metal and slag receiving recesses on surface of carbon layer
09/2003
09/30/2003US6626977 Direct smelting process and apparatus
09/30/2003CA1341441C Furnace-plasma arc torch-supervisory control system for recovery of free aluminum from aluminum dross
09/24/2003EP1346072A1 Method and apparatus for feeding solid material and oxidizing gas into suspension smelting furnace
09/24/2003CN1444001A 冷却元件 Cooling element
09/18/2003US20030175647 Coolable arched roof
09/18/2003US20030173722 Bottom structure for a smelting furnace
09/17/2003EP1344838A2 Cooling element
09/17/2003CN2573970Y Vertical continuous side feeding preheating environment protection device for arc furnace
09/17/2003CN1443434A 感应炉 Induction furnace
09/17/2003CN1443246A Direct smelting process and apparatus
09/16/2003CA2278099C Process for casting and forming slag products
09/12/2003WO2002058862A3 Recirculating molten metal supply system and method
09/10/2003EP1342042A1 Air injection for nitrogen oxide reduction and improved product quality
09/10/2003EP1341738A1 Fire-resistant substance and method for producing a fire-resistant lining
09/04/2003WO2003064922A3 Incinerator seals
09/03/2003EP1196728B1 Method and device for emptying metallurgic melting vessels by tipping
09/03/2003EP1181489B1 Electric arc furnace or resistance furnace
09/03/2003CN2570720Y Single-setting type annular kiln
09/03/2003CN1439858A Heat exchanging horse shoe flame sodium silicate melting furnace
09/03/2003CN1120346C Furanance plant
09/02/2003US6614832 Method of determining electrode length and bath level in an electric arc furnace
09/02/2003US6614831 Mounting arrangement for auxiliary burner or lance
08/2003
08/28/2003WO2003070227A1 Taste-masked film-type or wafer-type medicinal preparation
08/27/2003EP1337800A1 Cooling element
08/27/2003CN2568671Y Lead smelter hearth
08/21/2003WO2003068995A1 Method and device for the continuous production of steel using metal charge material
08/21/2003WO2003068700A1 Use of high carbon coal ash
08/21/2003US20030154887 Use of high carbon coal ash
08/19/2003CA2263963C Smelting installation with an electric-arc furnace
08/13/2003EP1334324A2 Melting furnace for metal leagues fit to the direct and continuous poured of the melted metal
08/13/2003EP1198690B1 Pre-heating device
08/13/2003EP1099087B1 Method for estimating electrode tip position
08/13/2003CN2566202Y Flexible insulating mica plate with alarm device
08/13/2003CN1435593A Sealing device for incinerator
08/07/2003WO2003064922A2 Incinerator seals
08/07/2003CA2473544A1 Incinerator seals
08/06/2003EP1332232A1 Method for producing stainless steels, in particular high-grade steels containing chromium and chromium-nickel
08/06/2003EP1181491B1 Metallurgical vessel comprising a tapping device and method for the controlled, slag-free extraction of molten metal from said vessel
08/06/2003CN2564968Y Metal smelting furnace
08/06/2003CN1117026C Yellow phosphorus furnace building process utilizing cold mashed paste andyellow phosphorus furnace
08/05/2003US6603795 Power control system for AC electric arc furnace
07/2003
07/24/2003WO2003060169A1 Method for the pyrometallurgical treatment of metals, metal melts and/or slags and injection device
07/24/2003US20030137085 Method and device for preventing slag from flowing along when tapping a molten metal
07/23/2003EP1187942B1 Method for producing melt iron
07/22/2003US6597722 Apparatus for arc-melting cold iron source and method thereof
07/22/2003US6596223 Apparatus for direct smelting
07/22/2003US6596221 Metallurgical vessel having a tapping device and method for the controlled, slag-free extraction of molten metal from said vessel
07/22/2003US6596220 Method for oxy-fueled combustion
07/16/2003EP1327352A2 Digital electrode observation
07/16/2003EP1327116A1 Improvements in and relating to furnaces and methods of melting
07/16/2003EP1285210A4 Electric arc gasifier as a waste processor
07/16/2003EP1258303B1 Novel smelting furnace for molding
07/10/2003WO2003056044A1 Aluminium melting method using analysis of fumes coming from the furnace
07/10/2003US20030127446 Means and method for heating
07/09/2003EP1325950A2 Co-current shaft reactor
07/09/2003EP1325159A1 A direct smelting process and apparatus
07/09/2003EP1325158A1 Oxy-fuel combustion system and uses therefor
07/09/2003EP1070149B1 Metal scrap submergence system for scrap charging/melting well of furnace
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