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)
07/1998
07/21/1998US5783802 Vertically lifted portable electric furnace and method for use thereof
07/15/1998EP0853130A1 Process and installation for improving tapping of steel from a melting furnace into a ladle
07/15/1998CN1187878A Furnace plant
07/15/1998CN1187856A Method for improved energy input into scrap bulk
07/15/1998CA2227126A1 Process and device for melting light metals
07/09/1998WO1998029572A1 Electric furnace with insulated electrodes and process for producing molten metals
07/09/1998CA2276151A1 Electric furnace with insulated electrodes and process for producing molten metals
07/08/1998EP0768016A4 A vertically lifted portable electric furnace
07/07/1998US5775897 Gaseous flow reversing valve with distributed gas flow
07/07/1998CA2097239C Method and apparatus for oxidizing pulverous fuel with two gases having different oxygen contents
07/01/1998EP0850885A1 Melt treatment apparatus
06/1998
06/30/1998US5772931 Slag coating process
06/30/1998US5772430 Cooling device with panels for electric arc furnaces
06/30/1998CA2073222C Anode for a direct current arc furnace
06/23/1998US5769923 Decarburization refining process for chromium-containing molten metal and associated top blowing lance
06/23/1998US5769910 Float bath for manufacturing float glass
06/20/1998CA2222829A1 Slag coating process
06/18/1998WO1998026245A1 Arc furnace protection
06/18/1998DE19707319C1 Positioning of the outlet end of a consumable lance
06/16/1998US5765489 Process for the treatment of solid residue from refuse incineration plants, and apparatus for performing the process
06/10/1998EP0846779A1 Continuous scrap preheating
06/10/1998EP0846509A1 Two-chamber furnace for countergravity casting
06/10/1998CN1184460A Process for making fused-cast refractory products
06/09/1998US5762682 Heat treatment and sealing with deaeration
06/03/1998CN1183477A Oxygen blowing lance for electric furnace
06/02/1998US5759027 Device for a ring section furnace
05/1998
05/27/1998CN1183065A Method for measurement of amount liquid metal in casting furnace
05/26/1998US5755818 Staged combustion method
05/20/1998EP0842591A1 Bottom electrode for an arc furnace operated with direct current and process for operating the furnace
05/20/1998EP0723734B1 Bottom electrode for a metallurgical vessel
05/14/1998DE19646738A1 Improved method and equipment for tapping steel from a melting furnace into a ladle
05/13/1998CN1181807A Preheater for arc furnace
05/13/1998CN1181495A Multiple furnace controller
05/13/1998CN1181494A Hot-blast fume-removing energy-saing reflection heating furnace
05/13/1998CA2220468A1 Method and device for improving tapping of liquid steel from a smelting furnace into a ladle
05/06/1998CN1181113A Iron semlting process and plant according to the multiple zone semlting process
05/06/1998CN1181112A Method of producing metals and metal alloys
05/06/1998CN1038260C Method and apparatus for controlling of operation of double-furnace
05/05/1998CA2104337C Continuous scrap preheating
04/1998
04/29/1998EP0838531A1 Cooling system for cathodes in direct current electric arc furnaces
04/29/1998CN1180159A Furnace vessel for DC arc furnace
04/28/1998US5744117 Feed processing employing dispersed molten droplets
04/28/1998US5743729 Cooling device with panels for electric arc furnaces
04/22/1998EP0837145A1 Device to support and swing the heart in an electric furnace
04/22/1998EP0649477B1 Electric furnace for melting scrap iron
04/21/1998US5741349 For smelting; layer of slag and protective frozen layer
04/21/1998CA2218412A1 Device to support and swing the hearth in an electric furnace
04/16/1998WO1998015792A1 Melting apparatus and method for melting metal
04/15/1998EP0835942A1 Method for the electromagnetic stirring of the liquid metal in electric arc furnaces and relative device
04/14/1998US5739505 Temperature control method and apparatus for an electric furnace
04/14/1998US5738823 Meltdown apparatus
04/14/1998US5738811 Injecting beneficiating oxidizing gas upward through ceramic, melting
04/14/1998CA2218016A1 Method for the electromagnetic stirring of the liquid metal in electric arc furnaces and relative device
04/08/1998EP0834049A1 Method for melting a batch in an electric arc furnace
04/08/1998EP0833950A1 Method for an improved energy input into a scrap bulk
04/08/1998CN1178559A Melt reduction equipment and operating method
04/07/1998US5737355 Directly induced swing for closed loop control of electroslag remelting furnace
04/02/1998WO1998013658A1 Panelized spray-cooled furnace roof
04/01/1998EP0832305A1 Combined oxygen blowing/fuel burner lance assembly
03/1998
03/31/1998US5733356 Method and device for processing free-flowing materials
03/27/1998CA2216458A1 Cooling system for cathodes in direct current electric arc furnaces
03/26/1998WO1998012360A1 Process for refining high-impurity copper to anode copper
03/26/1998CA2267325A1 Process for refining high-impurity copper to anode copper
03/25/1998EP0830182A1 Vaporizable material injection into molten bath
03/25/1998EP0746737B1 Charging device for arc furnaces
03/25/1998CN2277061Y Gas fuel and firewood multi-fuel kiln
03/24/1998US5731564 Method of operating a centrifugal plasma arc furnace
03/17/1998US5729569 Submerged arc furnace with vertically movable frame
03/17/1998US5727939 Deflector system for reducing air infiltration into a furnace
03/12/1998DE19636279A1 Measuring arc furnace electrode vibrations
03/11/1998EP0665899B1 Process and device for melting scrap
03/11/1998CN2276145Y Water injection type electric smelting magnesia energy-saving furnace
03/04/1998EP0825970A1 Process for making fused-cast refractory products
03/04/1998EP0825908A1 Method for measurement of amount of liquid metal in casting furnace
02/1998
02/26/1998WO1998008041A1 Smelting installation with an electric-arc furnace
02/26/1998WO1998007889A1 Batch preheater
02/26/1998DE19634348A1 Einschmelzaggregat mit einem Lichtbogenofen Smelting plant with an electric arc furnace
02/25/1998EP0824663A1 Furnace plant
02/25/1998CN1037530C Method and apparatus for recovery of valuable metal
02/19/1998WO1998006990A1 Bulk loader
02/18/1998CN2274753Y Cyclic heat recovering drier
02/17/1998US5719897 Furnace vessel for a direct current arc furnace
02/17/1998CA2082000C Anode for a direct-current electric arc furnace
02/11/1998EP0823487A1 Melt reduction equipment and operating method
02/11/1998CN1037370C Container for treatment heating material and its cooling and method
02/05/1998DE4244921C2 Prevention of dust accumulation on furnace walls
02/05/1998DE19637246A1 Melting furnace with at least one lance penetrating into its interior, lance and method for its control
02/05/1998DE19637238A1 Melting furnace with at least one lance penetrating into interior
02/03/1998US5715272 Device for charging an electric furnace
02/03/1998US5714113 Apparatus for electric steelmaking
01/1998
01/29/1998WO1998003830A1 A melting unit for voluminous manufacture
01/28/1998EP0820528A1 Iron smelting process and plant according to the multiple zone smelting process
01/28/1998CN1171537A Method of operating arc furnace, and arc furnace
01/28/1998CN1171536A Reverberatory melting keeping furnace
01/28/1998CN1171446A Method for controlling arc of DC arc furnace by tilting top electrode
01/27/1998US5711635 Apparatus for hazardous waste vitrification
01/21/1998EP0819182A1 A method of producing metals and metal alloys
01/21/1998CN1171136A Tilting metallurgical unit comprising several vessels
01/21/1998CN1170865A Modular spray cooled side-wall for electric arc furnaces
01/21/1998CN1170864A Direct-fired stratified atmosphere furnace system
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