Patents for F27D 13 - Apparatus for preheating charges; Arrangements for preheating charges (1,413)
03/1999
03/30/1999US5888458 Melting furnace of metals and melting method thereof
03/17/1999CN1211316A Iron-base scrap preheating apparatus and method
02/1999
02/24/1999EP0898137A1 Metal melting apparatus and method therefor
02/23/1999CA2135495C Dc arc furnace
01/1999
01/28/1999WO1998046955A3 Device for charging a charging material preheater in an arc furnace
01/13/1999EP0890809A1 Iron-base scrap preheating apparatus and method
01/06/1999CN1041557C Smelting plant with two melting furnace arranged in juxtaposed relationship
12/1998
12/22/1998CA2135780C Electric arc melting furnace
12/22/1998CA2135635C Apparatus for preheating and charging scrap materials
12/16/1998EP0884545A1 Electric ARC melting furnace
12/10/1998WO1998055417A1 Method and apparatus for producing cement clinker
12/09/1998EP0882687A1 Method and apparatus for producing cement clinker
12/02/1998EP0646757B1 Dc arc furnace
11/1998
11/26/1998WO1998053106A1 Loading system for electric arc furnaces
10/1998
10/28/1998CN1040460C Process and appts. for producing molten pig iron or molten steel preproducts
10/22/1998WO1998046956A1 System to load pre-heated scrap by means of baskets for electric arc furnace
10/22/1998WO1998046955A2 Device for charging a charging material preheater in an arc furnace
10/22/1998CA2284765A1 System to load pre-heated scrap by means of baskets for electric arc furnace
10/14/1998EP0870066A1 Method and facility for reprocessing waste
10/01/1998WO1998043032A1 Method to load scrap for electric arc furnace and relative system
10/01/1998WO1998042880A1 Cooled basket for steel plants
10/01/1998CA2285051A1 Cooled basket for steel plants
10/01/1998CA2284762A1 Method to load scrap for electric arc furnace and relative system
09/1998
09/09/1998EP0646758B1 Apparatus for preheating and supplying scraps
09/02/1998CN1039657C Production method and apparatus for preheating mixed sinter material using sintered hot waste gas
09/01/1998US5800591 Method and apparatus for feeding a steelmaking furnace
08/1998
08/13/1998WO1998035196A1 Metal melting apparatus and method therefor
07/1998
07/22/1998EP0854198A1 Process and apparatus for charging and melting small-sized light metal scrap
07/15/1998CA2227126A1 Process and device for melting light metals
07/14/1998US5779467 Method and apparatus for preheating particulate material
07/08/1998CN1038986C 旋流器 Cyclone
05/1998
05/20/1998EP0843020A1 Double hearth electric arc furnace for continuous melting
05/13/1998CN1181807A Preheater for arc furnace
05/06/1998CN1181113A Iron semlting process and plant according to the multiple zone semlting process
04/1998
04/15/1998EP0617739B1 Method for continuously melting down scrap metal
04/15/1998CN2278917Y Preheating device with additional combustion furnace for hot-blast stove
03/1998
03/05/1998WO1998008984A1 Method and facility for reprocessing waste
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
02/05/1998WO1998004749A1 Metal reduction and melting process
01/1998
01/28/1998EP0820528A1 Iron smelting process and plant according to the multiple zone smelting process
01/06/1998US5705123 Metal chip reclamation system
12/1997
12/10/1997CN1167156A Process for producing molten pig iron or molten steel preproducts
11/1997
11/26/1997CN2268913Y Assembled lining style heat-resisting steel cylinder for pre-heater of cement kiln
11/26/1997CN1166198A Metal fusion furnace and metal fusing method
10/1997
10/21/1997US5680413 Electric arc melting furnace
10/08/1997EP0711397B1 Charge preheater
09/1997
09/17/1997CN2262697Y Intensified decomposing furnace for concrete waste heat electric generating kiln
09/04/1997WO1997032174A1 Method for the calcination of calcium carbonate bearing materials
08/1997
08/21/1997WO1997030320A1 Iron-base scrap preheating apparatus and method
08/20/1997EP0655965B1 Process for the drying of perforated brick blocks and plants for carrying out the process
07/1997
07/16/1997EP0784193A1 Metal fusion furnace and metal fusing method
07/15/1997US5647288 Scrap conveyor having improved scrap pre-heating construction
07/08/1997US5645791 Charge preheater
06/1997
06/12/1997DE19545831A1 Two-vessel electric-arc furnace
05/1997
05/28/1997CN2255029Y Returning type Lipple preheating machine
05/07/1997EP0772015A1 Method and apparatus for preheating and melting scrap
04/1997
04/16/1997CN1147434A Controlled process for heat treating of delubed material
03/1997
03/11/1997CA2063562C Smelting plant with two adjacent smelting furnaces
02/1997
02/20/1997WO1997006394A1 Metal fusion furnace and metal fusing method
02/19/1997CN2247789Y Soft connected enternal cylinder for cyclone preheater
12/1996
12/31/1996US5590150 Electric arc melting furnace
12/17/1996US5584910 Preheating iron ore and fluxes including fines, reducing to sponge iron, melting in presence of carbon carriers and oxygen-containing gas to produce reducing gas, passing first portion to reducing zone, purifying second portion
12/03/1996US5581574 Method and apparatus for conditioning and using furnace off-gases in a scrap preheating apparatus
11/1996
11/27/1996EP0744585A1 Method for preheating scrap by reheating the exhaust gases, and device for performing the method
11/26/1996US5578147 Pretreat to convert to gas, measuring its concentration, and heat to reach predetermined value
10/1996
10/23/1996CN1133967A Melting furnace having preheating vessel
10/17/1996WO1996032616A1 Preheater for arc furnaces
10/17/1996WO1996032505A1 Iron smelting process and plant according to the multiple zone smelting process
10/17/1996CA2217896A1 Plant and process for the production of iron melts
10/02/1996DE19512015A1 accelerating cooling of e.g. lignite fluidised bed drying plant
09/1996
09/18/1996CN1131197A D.C. electric-arc furnace
08/1996
08/20/1996CA2050323C Method and apparatus for heat processing glass batch materials
07/1996
07/25/1996WO1996022397A1 Apparatus and method for metal chip reclamation
07/23/1996CA2151076C Controlled magnesium melt process, system and components therefor
07/16/1996US5535991 Plant for producing molten pig iron or molten steel pre-products
07/09/1996US5535236 Preheating device
07/09/1996US5535235 Melting furnace having preheating vessel
07/09/1996US5534046 Process for producing molten pig iron or molten steel pre-products
07/02/1996US5533043 Installation for producing liquid metal by melting scrap iron
05/1996
05/28/1996US5520372 Process and device for preheating scrap
05/15/1996EP0711397A1 Charge preheater
04/1996
04/30/1996US5513206 Apparatus for preheating and charging scrap materials
04/03/1996EP0704665A1 Tunnel furnace for quick drying of clay articles
03/1996
03/19/1996US5500032 Method for continuously melting down scrap metal
03/12/1996US5497977 Process and apparatus for preheating and inserting scrap into a smelting furnace
03/10/1996WO1996030709A1 Method and apparatus for preheating and melting scrap
03/07/1996DE19517151C1 Melting metal scrap in electric arc furnace of good operational effectiveness and durability
12/1995
12/26/1995US5479435 DC arc furnace
12/26/1995US5479434 Double-hearth arc furnace for preheating scrap material and method of operating the same
11/1995
11/22/1995CN1112233A Preheating device
11/22/1995CN1112164A Production method and apparatus for preheating mixed sinter material using sintered hot waste gas
10/1995
10/04/1995CN1109694A Electric arc fusion furnace
10/03/1995US5454714 Equipment for and method of precalcining any mineral materials whatsoever
09/1995
09/20/1995EP0672881A1 Melting furnace having preheating vessel
09/19/1995US5451033 Heat processing apparatus
09/14/1995DE4446718A1 Scrap preheating in an electric arc double furnace
09/13/1995EP0671595A1 Electric arc fusion furnace
08/1995
08/31/1995DE4406260A1 Operating a melting unit with two furnaces arranged side by side
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