| Patents for C21B 7 - Blast furnaces (8,339) |
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| 09/22/1998 | US5811057 Refractory lining system for high wear area of high temperature reaction vessel |
| 09/17/1998 | WO1998040168A1 Dry process gunning of refractory castable |
| 09/11/1998 | WO1998039612A1 Continuously operating liquid-cooled panel |
| 09/09/1998 | EP0863215A1 Charging top closure for shaft furnace |
| 09/09/1998 | EP0862657A1 Duplex procedure for the production of metals and metal alloys from oxidic metal ores |
| 09/07/1998 | CA2229738A1 Top closing device for shaft furnaces |
| 09/03/1998 | WO1998038465A1 Apparatus for charge distribution in shaft furnaces |
| 09/02/1998 | CN2289798Y Oxygen-enriched coal powder injection device for ironmaking furnace |
| 09/01/1998 | US5799777 Device for the distribution of materials in bulk |
| 08/20/1998 | WO1998021373A3 Process for reducing fume emissions during molten metal transfer |
| 08/18/1998 | US5795508 Method of lining a blast furnace |
| 08/12/1998 | EP0764220B1 Loading device having a rotating chute for a melting furnace |
| 08/12/1998 | CN1039498C Blast furnace comprehensive deterministic system |
| 07/30/1998 | WO1998032882A1 Device for directly monitoring the charging process on the inside of a shaft furnace |
| 07/30/1998 | WO1998032881A1 Tap hole drill |
| 07/28/1998 | US5785517 Cooling arrangements for refractory wall linings |
| 07/21/1998 | US5783509 Process for preparing a refractory powder from spent contact masses issuing from the production of silanes, and to refactory products obtained therefrom |
| 07/16/1998 | WO1998030345A1 Method of producing a cooling plate for iron and steel-making furnaces |
| 07/15/1998 | CN2286186Y Mounting position regulator for coal gun |
| 07/08/1998 | CN1186861A Oscillating chute type bell-free top distributor for blast furnace |
| 07/02/1998 | WO1998028447A1 Apparatus for keeping optimal penetration depth formed at front end of oxygen tuyere and method for keeping the same |
| 07/02/1998 | DE19654774A1 Shell for shaft furnace, annular furnace or similar unit |
| 07/02/1998 | DE19652596A1 Verfahren und Tauchmeßfühler zum Messen einer elektrochemischen Aktivität A method and Immersion probe for measuring an electrochemical activity of |
| 07/02/1998 | CA2247021A1 Apparatus for keeping optimal penetration depth formed at front end of oxygen tuyere and method for keeping the same |
| 07/01/1998 | CN2285297Y Probe for blast furnace tuyere |
| 07/01/1998 | CN2285296Y Oblique section circular arranged gas sealing device |
| 06/25/1998 | WO1998027421A1 Method and immersion sensor to measure electrochemical activity |
| 06/24/1998 | CN2284792Y Sealing device of drive water-cooling gear box for blast furnace top distributing |
| 06/24/1998 | CN2284791Y Distributing chute liner for blast furnace |
| 06/17/1998 | CN1038736C Charging device with memeber for regulating the flow rate |
| 06/09/1998 | US5762099 Valve system |
| 06/09/1998 | CA2131428C Alloy material addition method and apparatus for smelting and melting furnaces |
| 06/02/1998 | US5759482 Water cooled flue gas sampling device |
| 05/22/1998 | WO1998021373A2 Process for reducing fume emissions during molten metal transfer |
| 05/22/1998 | CA2270949A1 Process for reducing fume emissions during molten metal transfer |
| 05/20/1998 | CN1038430C Blast furnace coal powder jet quick-burning method and equipment |
| 05/14/1998 | DE19646180A1 Controlling speed of a vehicle, in particular, a vehicle for containers of ore and flux mixtures |
| 05/13/1998 | CN2281353Y Head of remained-iron hook |
| 05/12/1998 | US5749820 Suspension device for a rotating body |
| 05/05/1998 | US5746804 Oxygen and air in tubes, feeding particles, flanges and nozzles |
| 04/28/1998 | US5744093 Cover for launders |
| 04/22/1998 | EP0837144A1 Cooling panel for shaft furnace |
| 04/22/1998 | CN2279363Y Swirl preheating spray gun for blowing coal dust of blast furnace |
| 04/22/1998 | CN1179798A Device for sealing lance into aperture through which lance can be introduced into pressurized vessel |
| 04/22/1998 | CN1179471A Throughflow tuyere and making method thereof |
| 04/22/1998 | CN1038147C Gas supply and control device for spraying oxygen in blast furnace |
| 04/21/1998 | US5741349 For smelting; layer of slag and protective frozen layer |
| 04/14/1998 | US5738822 Shaft furnace charging device with rotating chute |
| 04/07/1998 | US5735647 For drilling a worn or damaged tap hole |
| 03/26/1998 | WO1998012461A1 Sealing device for surge tanks of generator gas dust recirculation |
| 03/26/1998 | WO1998012357A1 Process for monitoring the operation of a device for feeding an abrasive medium by means of a fluid |
| 03/26/1998 | CA2266328A1 Process for monitoring the operation of a device for feeding an abrasive medium by means of a fluid |
| 03/25/1998 | EP0765404B1 Rotary body suspension device |
| 03/18/1998 | EP0828859A1 Process for recovering and disposing of residues produced in cupola furnaces |
| 03/05/1998 | WO1998008982A1 Runner for a hot melt, runner system and method for conveying a hot melt |
| 03/04/1998 | EP0802834A4 Process for applying low-cement castable refractory material |
| 02/25/1998 | CN1037527C Method and device for injection of pulverised coal into balst-furnace crucible |
| 02/18/1998 | CN1173543A Blast furnace top sluice feed distributing device driven by wirerope |
| 02/18/1998 | CN1173542A Blast furnace operating consulting system |
| 02/12/1998 | WO1998005799A1 Taphole drill for attending to two tapholes in a shaft furnace |
| 02/12/1998 | DE19638346C1 Verfahren zur Überwachung des Betriebs einer Vorrichtung zur Zuführung eines abrasiven Mediums mit Hilfe eines Fluids Method for monitoring the operation of a device for feeding an abrasive medium by means of a fluid |
| 02/04/1998 | CN2273711Y Arc and rotating type coal jetting gun for blast furnace |
| 01/27/1998 | CA2096579C Method of producing molten pig iron or molten steel pre-products and a plant therefor |
| 01/21/1998 | CN2272896Y Long life blast furnace blast apparatus |
| 01/15/1998 | WO1998001584A1 Stave for cooling of blast furnace walls and method of manufacturing same |
| 01/14/1998 | EP0817867A1 Device for sealing a lance into an aperture through which the lance can be introduced into a pressurized vessel |
| 01/13/1998 | US5707230 Coolable lining for a high-temperature gasification reactor |
| 01/07/1998 | EP0816516A1 Tap hole drilling machine |
| 01/07/1998 | EP0816515A1 Cooling plate for metallurgical furnaces of the iron and steel industry |
| 01/05/1998 | CA2209682A1 Plate cooler for metallurgical furnaces |
| 12/02/1997 | US5694480 Molten slag flow rate measuring device and furnace facilities using the same |
| 11/26/1997 | CN1036533C Travelling bent pipe-belly pipe disassembly-and assembly machine |
| 11/25/1997 | US5690888 Apparatus and method for tapping a reactor containing a molten fluid |
| 11/25/1997 | CA2132052C Accretion controlling tuyere |
| 11/20/1997 | WO1997043592A1 Telescoping device for cleaning eccentrically positioned tapping holes of electric arc furnaces |
| 11/19/1997 | EP0742840B1 Device for distributing a loose material |
| 11/19/1997 | CN1165198A Blast furnace gas temp. regulation technology system |
| 11/12/1997 | CN2267257Y Gas sealed tank water system test instrument |
| 11/12/1997 | CN2267256Y Liner plate of material distribution trough for blast-furnace with no bell-and-hopper arrangement |
| 11/12/1997 | CN2267236Y Direction converter for pipe to blow coal powder into blast-furnace |
| 11/06/1997 | WO1997041264A1 Process and device for closing a tap hole |
| 11/05/1997 | CN2266600Y Disk partition double-chamber tuyere |
| 11/05/1997 | CN1163941A Method for additionally providing water cooling of bottom of blast furnace |
| 11/04/1997 | US5683652 Process for reducing dust emissions of a blast furnace |
| 10/30/1997 | WO1997040195A1 Refractory material |
| 10/30/1997 | CA2252834A1 Refractory material |
| 10/29/1997 | EP0802834A1 Process for applying low-cement castable refractory material |
| 10/29/1997 | CN2265984Y Fluidizing device for coal powder tank of blast furnace |
| 10/22/1997 | CN2265378Y Flow-jetting type blast furnace tuyere |
| 10/22/1997 | CN1036209C Machine for piercing a taphole for a shaft furnace |
| 10/21/1997 | US5678806 Plate coolers for shaft furnaces |
| 10/16/1997 | WO1997038140A1 Refractory liner and lining method for a vertical shaft metallurgical vessel |
| 10/14/1997 | US5676908 Plate for cooling shaft furnaces |
| 10/09/1997 | WO1997037047A1 Charging device for a blast furnace |
| 10/08/1997 | EP0730666B1 Device for loading a shaft furnace |
| 10/08/1997 | EP0711397B1 Charge preheater |
| 10/07/1997 | US5673901 Device for transporting molten metal in the pouring bay of a shaft furnace and process for operating this device |
| 10/02/1997 | WO1997036012A1 Process for recovering and disposing of residues produced in cupola furnaces |
| 10/02/1997 | CA2223132A1 Process for recovering and disposing of residues produced in cupola furnaces |
| 10/01/1997 | CN2263655Y Blast-furnace hearth furnace bottom lining structure |