| Patents for F27D 13 - Apparatus for preheating charges; Arrangements for preheating charges (1,413) |
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| 03/30/1999 | US5888458 Melting furnace of metals and melting method thereof |
| 03/17/1999 | CN1211316A Iron-base scrap preheating apparatus and method |
| 02/24/1999 | EP0898137A1 Metal melting apparatus and method therefor |
| 02/23/1999 | CA2135495C Dc arc furnace |
| 01/28/1999 | WO1998046955A3 Device for charging a charging material preheater in an arc furnace |
| 01/13/1999 | EP0890809A1 Iron-base scrap preheating apparatus and method |
| 01/06/1999 | CN1041557C Smelting plant with two melting furnace arranged in juxtaposed relationship |
| 12/22/1998 | CA2135780C Electric arc melting furnace |
| 12/22/1998 | CA2135635C Apparatus for preheating and charging scrap materials |
| 12/16/1998 | EP0884545A1 Electric ARC melting furnace |
| 12/10/1998 | WO1998055417A1 Method and apparatus for producing cement clinker |
| 12/09/1998 | EP0882687A1 Method and apparatus for producing cement clinker |
| 12/02/1998 | EP0646757B1 Dc arc furnace |
| 11/26/1998 | WO1998053106A1 Loading system for electric arc furnaces |
| 10/28/1998 | CN1040460C Process and appts. for producing molten pig iron or molten steel preproducts |
| 10/22/1998 | WO1998046956A1 System to load pre-heated scrap by means of baskets for electric arc furnace |
| 10/22/1998 | WO1998046955A2 Device for charging a charging material preheater in an arc furnace |
| 10/22/1998 | CA2284765A1 System to load pre-heated scrap by means of baskets for electric arc furnace |
| 10/14/1998 | EP0870066A1 Method and facility for reprocessing waste |
| 10/01/1998 | WO1998043032A1 Method to load scrap for electric arc furnace and relative system |
| 10/01/1998 | WO1998042880A1 Cooled basket for steel plants |
| 10/01/1998 | CA2285051A1 Cooled basket for steel plants |
| 10/01/1998 | CA2284762A1 Method to load scrap for electric arc furnace and relative system |
| 09/09/1998 | EP0646758B1 Apparatus for preheating and supplying scraps |
| 09/02/1998 | CN1039657C Production method and apparatus for preheating mixed sinter material using sintered hot waste gas |
| 09/01/1998 | US5800591 Method and apparatus for feeding a steelmaking furnace |
| 08/13/1998 | WO1998035196A1 Metal melting apparatus and method therefor |
| 07/22/1998 | EP0854198A1 Process and apparatus for charging and melting small-sized light metal scrap |
| 07/15/1998 | CA2227126A1 Process and device for melting light metals |
| 07/14/1998 | US5779467 Method and apparatus for preheating particulate material |
| 07/08/1998 | CN1038986C 旋流器 Cyclone |
| 05/20/1998 | EP0843020A1 Double hearth electric arc furnace for continuous melting |
| 05/13/1998 | CN1181807A Preheater for arc furnace |
| 05/06/1998 | CN1181113A Iron semlting process and plant according to the multiple zone semlting process |
| 04/15/1998 | EP0617739B1 Method for continuously melting down scrap metal |
| 04/15/1998 | CN2278917Y Preheating device with additional combustion furnace for hot-blast stove |
| 03/05/1998 | WO1998008984A1 Method and facility for reprocessing waste |
| 02/26/1998 | WO1998008041A1 Smelting installation with an electric-arc furnace |
| 02/26/1998 | WO1998007889A1 Batch preheater |
| 02/26/1998 | DE19634348A1 Einschmelzaggregat mit einem Lichtbogenofen Smelting plant with an electric arc furnace |
| 02/05/1998 | WO1998004749A1 Metal reduction and melting process |
| 01/28/1998 | EP0820528A1 Iron smelting process and plant according to the multiple zone smelting process |
| 01/06/1998 | US5705123 Metal chip reclamation system |
| 12/10/1997 | CN1167156A Process for producing molten pig iron or molten steel preproducts |
| 11/26/1997 | CN2268913Y Assembled lining style heat-resisting steel cylinder for pre-heater of cement kiln |
| 11/26/1997 | CN1166198A Metal fusion furnace and metal fusing method |
| 10/21/1997 | US5680413 Electric arc melting furnace |
| 10/08/1997 | EP0711397B1 Charge preheater |
| 09/17/1997 | CN2262697Y Intensified decomposing furnace for concrete waste heat electric generating kiln |
| 09/04/1997 | WO1997032174A1 Method for the calcination of calcium carbonate bearing materials |
| 08/21/1997 | WO1997030320A1 Iron-base scrap preheating apparatus and method |
| 08/20/1997 | EP0655965B1 Process for the drying of perforated brick blocks and plants for carrying out the process |
| 07/16/1997 | EP0784193A1 Metal fusion furnace and metal fusing method |
| 07/15/1997 | US5647288 Scrap conveyor having improved scrap pre-heating construction |
| 07/08/1997 | US5645791 Charge preheater |
| 06/12/1997 | DE19545831A1 Two-vessel electric-arc furnace |
| 05/28/1997 | CN2255029Y Returning type Lipple preheating machine |
| 05/07/1997 | EP0772015A1 Method and apparatus for preheating and melting scrap |
| 04/16/1997 | CN1147434A Controlled process for heat treating of delubed material |
| 03/11/1997 | CA2063562C Smelting plant with two adjacent smelting furnaces |
| 02/20/1997 | WO1997006394A1 Metal fusion furnace and metal fusing method |
| 02/19/1997 | CN2247789Y Soft connected enternal cylinder for cyclone preheater |
| 12/31/1996 | US5590150 Electric arc melting furnace |
| 12/17/1996 | US5584910 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 |
| 12/03/1996 | US5581574 Method and apparatus for conditioning and using furnace off-gases in a scrap preheating apparatus |
| 11/27/1996 | EP0744585A1 Method for preheating scrap by reheating the exhaust gases, and device for performing the method |
| 11/26/1996 | US5578147 Pretreat to convert to gas, measuring its concentration, and heat to reach predetermined value |
| 10/23/1996 | CN1133967A Melting furnace having preheating vessel |
| 10/17/1996 | WO1996032616A1 Preheater for arc furnaces |
| 10/17/1996 | WO1996032505A1 Iron smelting process and plant according to the multiple zone smelting process |
| 10/17/1996 | CA2217896A1 Plant and process for the production of iron melts |
| 10/02/1996 | DE19512015A1 accelerating cooling of e.g. lignite fluidised bed drying plant |
| 09/18/1996 | CN1131197A D.C. electric-arc furnace |
| 08/20/1996 | CA2050323C Method and apparatus for heat processing glass batch materials |
| 07/25/1996 | WO1996022397A1 Apparatus and method for metal chip reclamation |
| 07/23/1996 | CA2151076C Controlled magnesium melt process, system and components therefor |
| 07/16/1996 | US5535991 Plant for producing molten pig iron or molten steel pre-products |
| 07/09/1996 | US5535236 Preheating device |
| 07/09/1996 | US5535235 Melting furnace having preheating vessel |
| 07/09/1996 | US5534046 Process for producing molten pig iron or molten steel pre-products |
| 07/02/1996 | US5533043 Installation for producing liquid metal by melting scrap iron |
| 05/28/1996 | US5520372 Process and device for preheating scrap |
| 05/15/1996 | EP0711397A1 Charge preheater |
| 04/30/1996 | US5513206 Apparatus for preheating and charging scrap materials |
| 04/03/1996 | EP0704665A1 Tunnel furnace for quick drying of clay articles |
| 03/19/1996 | US5500032 Method for continuously melting down scrap metal |
| 03/12/1996 | US5497977 Process and apparatus for preheating and inserting scrap into a smelting furnace |
| 03/10/1996 | WO1996030709A1 Method and apparatus for preheating and melting scrap |
| 03/07/1996 | DE19517151C1 Melting metal scrap in electric arc furnace of good operational effectiveness and durability |
| 12/26/1995 | US5479435 DC arc furnace |
| 12/26/1995 | US5479434 Double-hearth arc furnace for preheating scrap material and method of operating the same |
| 11/22/1995 | CN1112233A Preheating device |
| 11/22/1995 | CN1112164A Production method and apparatus for preheating mixed sinter material using sintered hot waste gas |
| 10/04/1995 | CN1109694A Electric arc fusion furnace |
| 10/03/1995 | US5454714 Equipment for and method of precalcining any mineral materials whatsoever |
| 09/20/1995 | EP0672881A1 Melting furnace having preheating vessel |
| 09/19/1995 | US5451033 Heat processing apparatus |
| 09/14/1995 | DE4446718A1 Scrap preheating in an electric arc double furnace |
| 09/13/1995 | EP0671595A1 Electric arc fusion furnace |
| 08/31/1995 | DE4406260A1 Operating a melting unit with two furnaces arranged side by side |