| Patents for F27B 3 - Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces (6,383) |
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| 11/17/2004 | CN1176344C Industrial furnace with built-in heat-storing chamber |
| 11/16/2004 | US6819705 Induction furnace |
| 11/16/2004 | US6818176 Oxy-fueled waste incinerator and method |
| 11/16/2004 | US6818175 System for producing steel |
| 11/11/2004 | US20040222575 Shredder dust feeding device, reverberatory furnace provided with this feeding device, and furnace for burning shredder dust |
| 11/10/2004 | CN1545606A Metallurgical oven and a material basket for a metallurgical oven |
| 11/10/2004 | CN1175712C Melting vessels provided with a cooled bottom electrode |
| 11/09/2004 | US6814925 Smelting furnace for molding |
| 11/09/2004 | US6814012 Furnace binding and adjustment systems |
| 11/04/2004 | US20040218657 Method and device for equalizing the pressures in the melting chamber and the cooling water system of a special melting unit |
| 11/04/2004 | US20040217526 Metal melting furnace |
| 11/03/2004 | CN1543442A Rapid glass melting or premelting |
| 11/03/2004 | CN1174208C 保护性气氛加热方法 Protective atmosphere heating method |
| 11/02/2004 | CA2323619C Wall structure for a metallurgical vessel and blast furnace provided with a wall structure of this nature |
| 10/28/2004 | US20040214125 Transfer of hot feed materials from a preprocessing plant to an electric smelting or melting furnace |
| 10/28/2004 | US20040213318 Burner and/or lance mounting assembly |
| 10/27/2004 | EP1242639B1 Equipment for the even feed of pulverous material to a concentrate burner of suspension smelting furnace |
| 10/27/2004 | CN1541325A Method, appts. and carriage for tapping of molton metal |
| 10/21/2004 | DE4236080B4 Verfahren zum Betreiben eines Lichtbogenofens A method of operating an arc furnace |
| 10/20/2004 | EP1285208B1 Integral side wall and tap hole cover for an eccentric bottom tap (ebt) furnace |
| 10/20/2004 | CN2650044Y Coal gasifying-forging-heating furnace |
| 10/20/2004 | CN1538889A Method and apparatus for metal pouring |
| 10/19/2004 | US6805724 Forming particulate reaction zones for the iron carbon melt; injecting a high velocity flow of particulates entrained in a carrier gas toward reaction zones from apparatus having a discharge end mounted near the intersection of sill line |
| 10/14/2004 | WO2004044509A3 Lance for injecting fluids for uniform diffusion within a volume |
| 10/13/2004 | EP1466022A1 Method for the pyrometallurgical treatment of metals, metal melts and/or slags and injection device |
| 10/13/2004 | CN2648366Y Potential different flow discharging electric arc furnace for Naxas emery smelting |
| 10/13/2004 | CN1537218A 冷却元件 Cooling element |
| 10/13/2004 | CN1537174A Method for melting and decarburization of iron carbon alloy |
| 10/12/2004 | US6804582 Digital electrode observation |
| 10/12/2004 | US6803336 Furnace lining which has different sintering behavior over its thickness; mgo sinter and a reducing agent applied in sequential layers |
| 10/12/2004 | US6802887 Feeding gas which contains a condensable and/or evaporable component in the gaseous and/or liquid state entrained therein in which possible damage to the gas supply means is considerably reduced or prevented altogether. |
| 10/07/2004 | US20040194940 Heat exchanger system used in steel making |
| 10/06/2004 | CN2646637Y Low nitrogen oxide and highly effective heat-accumulating industrial furnace |
| 10/06/2004 | CN1170108C Melting/retaining furnace for aluminium ingot |
| 10/05/2004 | US6801563 Apparatus to manipulate scrap in a scrap charger |
| 09/30/2004 | WO2004083756A1 High frequency inductive melting furnace system for alarming poor feeding and excessive generation of air gap |
| 09/30/2004 | US20040191712 Method and apparatus for improved process control in combustion applications |
| 09/30/2004 | US20040191026 Method and apparatus for feeding a stacke of metallic sheets into a melting furnace |
| 09/28/2004 | US6797228 Oxy-fueled aluminum recovery method |
| 09/23/2004 | WO2004058431A3 Method and apparatus for melting titanium using a combination of plasma torches and direct arc electrodes |
| 09/22/2004 | EP1341738B1 Method for producing a fire-resistant lining |
| 09/22/2004 | CN2643256Y A burning apparatus for pool melt stove |
| 09/22/2004 | CN2643255Y A close joint apparatus for pool melt stove |
| 09/22/2004 | CN1167930C Equipment for jetting granular material into container |
| 09/16/2004 | WO2004078385A1 Apparatus for treating molten metal having a sealed treatment zone |
| 09/15/2004 | EP1457749A1 Holding furnance with automatic feeding system of liquid metal |
| 09/15/2004 | EP1457575A1 Device for observing the charge in an electric steel production furnace |
| 09/15/2004 | EP1456425A1 Aluminium melting method using analysis of fumes coming from the furnace |
| 09/15/2004 | EP1077901B1 Glass melting process using roof-mounted oxygen-fuel burner |
| 09/15/2004 | EP1025267B2 Method for smelting fine grained direct reduced iron in an electric arc furnace |
| 09/15/2004 | CN2641556Y Preheating smeltnig thermo-insulating furnace |
| 09/15/2004 | CN2641056Y Oxygen lance base brick of wall of electric furnace |
| 09/14/2004 | US6790255 Moving-hearth heating furnace and method for making reduced metal agglomerates |
| 09/09/2004 | US20040174920 Method and apparatus for spatial energy coverage |
| 09/02/2004 | WO2004074523A2 Elevated discharge gas lift bubble pump and furnace for use therewith |
| 09/01/2004 | EP1451515A1 Apparatus and method for vitrification of contaminated soil or waste |
| 09/01/2004 | CN1526261A Mounting arrangement for auxiliary burner or lance |
| 08/31/2004 | US6783726 Cooling element and method for manufacturing cooling elements |
| 08/26/2004 | DE19744151C5 Verfahren zum Schmelzen von feinkörnigem, direkt reduziertem Eisen in einem Elektrolichtbogenofen A method of melting fine-grained, direct reduced iron in an electric arc furnace |
| 08/26/2004 | DE10328420B3 Nozzle arrangement used in the wall region or base region of a metallurgical vessel comprises a rod-like body made from a refractory ceramic material, a channel extending through the body, a unit for introducing a fluid, and an adapter |
| 08/26/2004 | DE10259434B3 Gasspüleinrichtung für metallurgische Schmelzgefäße Gas purging device for metallurgical melting vessels |
| 08/25/2004 | CN2636177Y Billet positioning controller in heating furnace |
| 08/12/2004 | WO2004067210A1 Dispensing system for molten aluminum |
| 08/10/2004 | US6773484 Without the need for a lance extension to establish a recirculation zone for the gases ejected from the lance; providing oxygen forsteelmaking operations such as electric arc furnaces |
| 08/10/2004 | CA2274546C Arc furnace protection |
| 08/05/2004 | WO2004065643A1 Eaf side wall panel to provide for primary and secondary combustion as well as particel injection at the same time, and operating method therefor |
| 08/04/2004 | CN1518657A Cooling element for cooling metallurgical furnace |
| 08/04/2004 | CN1517588A Coherent Jet flow device with nozzle having outer angle with axis of spray gun |
| 08/03/2004 | US6769909 Paint baking oven with radiant tube heating elements and method of using same |
| 07/29/2004 | WO2004063653A1 Plant with rotating furnace for the melting without salt of aluminium with screening and recovery of the slags |
| 07/29/2004 | WO2004063651A1 Graphite electrode for steelmaking |
| 07/29/2004 | CA2514894A1 Plant with rotating furnace for the melting without salt of aluminium with screening and recovery of the slags |
| 07/28/2004 | EP1441176A1 Coherent jet system with outwardly angled flame envelope ports |
| 07/28/2004 | CN1159561C Electric arc furnace cooling apparatus |
| 07/23/2004 | CA2416189A1 Converter oxygen puncher lance |
| 07/21/2004 | EP1438542A1 Arrangement and method for tapping a molten phase from a smelting furnace |
| 07/20/2004 | US6764642 Shredder dust feeding device, reverberatory furnace provided with this feeding device, and furnace for burning shredder dust |
| 07/15/2004 | WO2004058431A2 Method and apparatus for melting titanium using a combination of plasma torches and direct arc electrodes |
| 07/15/2004 | US20040135297 Electromagnetic induction apparatus and method of treatment of molten materials |
| 07/15/2004 | US20040135296 Coherent jet system with outwardly angled flame envelope ports |
| 07/15/2004 | US20040134448 Lance for injecting fluids for uniform diffusion within a volume |
| 07/14/2004 | CN2625822Y Smoke abating, dust settling, and energy saving down draught kiln |
| 07/08/2004 | WO2004057042A1 An apparatus for manufacturing molten irons by hot compacting fine direct reduced irons and calcined additives and method using the same |
| 07/08/2004 | WO2004056505A1 Gas flushing device for metallurgical melting pots |
| 07/08/2004 | US20040131988 Exhaust positioned at the downstream end of a glass melting furnace |
| 07/07/2004 | CN2624147Y Automatic control device for fused magnesia furnace |
| 06/30/2004 | EP1432954A1 Replacement method and device for assembling and disassembling modules of an electric arc furnace |
| 06/30/2004 | EP1432834A1 Arc furnace and method for operating this arc furnace |
| 06/29/2004 | US6755905 Use of high carbon coal ash |
| 06/24/2004 | US20040118161 Fusing acceleration and improved process control |
| 06/23/2004 | EP1137815A4 A process and an apparatus for producing metals and metal alloys |
| 06/16/2004 | CN1153742C Metal flume for manufacturing float glass |
| 06/15/2004 | US6749661 Speeding scrap treatment by introducing high velocity oxidizing gas stream sooner |
| 06/10/2004 | WO2004048869A1 Material feeding apparatus for rotary hearth furnace |
| 06/10/2004 | WO2004038317A3 Metallurgical melting container |
| 06/09/2004 | EP1425545A1 Method, apparatus and carriage for tapping of molten metal |
| 06/09/2004 | CN2620234Y Fuel heating heat insulation stove |
| 06/09/2004 | CN2619743Y Gas type horizontal Zn powder furnace |
| 06/09/2004 | CN1152839C Electrically conductive hot-patch material for DC arc furnace and its preparing process |
| 06/08/2004 | US6748004 Methods and apparatus for improved energy efficient control of an electric arc furnace fume extraction system |