| Patents for C21B 7 - Blast furnaces (8,339) |
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| 05/03/1995 | CN2196120Y Integral dregs remover |
| 05/02/1995 | US5411997 Mud material used for iron tap hole in blast furnace |
| 05/02/1995 | US5411393 Premix burner for furnace with gas enrichment |
| 05/02/1995 | US5411242 Charging device with member for regulating the flow rate |
| 04/27/1995 | DE4437584A1 Filler composition for tapping orifices |
| 04/25/1995 | US5409197 Cooling member for blast furnace tap opening |
| 04/25/1995 | CA1335328C Device for injecting preheated air in a shaft furnace |
| 04/18/1995 | US5406969 Regulation of flowrate of liquid furnace products |
| 04/05/1995 | CN1101078A A method for operating a multimedia tuyere and the tuyere system |
| 03/22/1995 | EP0644269A1 Process for controlling the forming of an accretion on an oxy-fuel tuyere |
| 03/22/1995 | CN1027992C Non-bell top charge flow ratio control valve non-amplifier controlling apparatus for furnace |
| 03/15/1995 | CN2191864Y Spray gun for jetting coal powder in blast furnace |
| 03/14/1995 | US5397110 Refractory brick and method of making and using same |
| 03/14/1995 | US5397108 Peepsight for blast furnace tuyere sensor system |
| 03/08/1995 | EP0641863A1 Blast furnace operation management method and apparatus |
| 03/01/1995 | EP0640539A1 Charge distribution chute for bulk material |
| 02/28/1995 | US5393038 Method facilitating the introduction of a piercing rod into a taphole of a shaft furnace and special clamp for implementing this method |
| 02/14/1995 | CA1334336C Process and apparatus for opening furnace tapholes |
| 02/01/1995 | CN2188589Y Double-sealing blast furnace gas-releasing valve |
| 01/31/1995 | US5385437 Device for charging a pressurized enclosure |
| 01/26/1995 | DE4324699A1 Process and device for complete afterburning of process gases in a coke-heated shaft furnace |
| 01/25/1995 | CN2188098Y Coal powder amount regulator |
| 01/18/1995 | CN1027454C Hydraulic tapping apparatus for blast furnace |
| 01/11/1995 | CN1027381C Stock distributing device of blast furnace throat |
| 01/04/1995 | CN2186757Y Oxygen burning tube retainer |
| 12/28/1994 | CN2186246Y Sampler of iron melt |
| 12/28/1994 | CN2186245Y Bit used for blast furnace open iron machine |
| 12/28/1994 | CN1027181C Process for inserting boring rod into tap hole of shaft furnace, boring machine and bi-directional |
| 12/21/1994 | CN2185751Y Soft water cooler connecting tube for blast furnace |
| 12/20/1994 | US5374299 In-flight oxidation in first reaction zone; sulfidation or reduction of reaction products in second zone |
| 12/07/1994 | CN2184699Y Cupric plate through-flow wind inlet |
| 12/07/1994 | CN1096000A Charging device with member for regulating the flow rate |
| 11/30/1994 | EP0491021B1 Device for rapidly repairing the headplate of a blast furnace |
| 11/30/1994 | CN1026797C A process for producing metals and metal alloys in a smelt reduction vessel |
| 11/29/1994 | CA2124488A1 Resin bond taphole closure refractory product |
| 11/17/1994 | EP0624204A1 Machine for forming the taphole of a tank furnace. |
| 11/10/1994 | WO1994025631A1 Taphole for a shaft furnace, especially a blast furnace |
| 11/10/1994 | WO1994025630A1 Method of forming a taphole flow channel |
| 11/09/1994 | CN1026500C High-silicon low-aluminium alloy and producing process thereof |
| 11/08/1994 | CA1332871C Handling device for a distribution chute of a shaft furnace and drive mechanism suitable for this device |
| 11/08/1994 | CA1332870C Installation for charging a shaft furnace |
| 11/02/1994 | CN1026422C Coating for anti-cement carbon layer and its product with anti-cement carbon layer |
| 10/18/1994 | US5356220 Method and apparatus for monitoring temperature of blast furnace and temperature control system using temperature monitoring apparatus |
| 10/18/1994 | CA1332507C Device for replacing the runners on a blast furnace |
| 10/18/1994 | CA1332506C Feed apparatus for a furnace |
| 10/12/1994 | CN2179384Y Water power flushing blast furnace slag and unit for recovery of iron sand |
| 10/05/1994 | EP0618301A1 Device for injecting preheated air into a shaft furnace |
| 10/05/1994 | CN1093160A Introduction of additiues in powder form into furnace |
| 10/04/1994 | US5351939 Machine for piercing a taphole for a shaft furnace |
| 09/21/1994 | EP0616038A1 Method for fixing anchors in iron stave coolers allowing refractory material to be applied by guniting and moulding especially for establishing and repairing blast furnaces |
| 09/21/1994 | CN2177727Y Device for regulating temp. of blast furnace gas |
| 09/21/1994 | CN1092469A Flow-dividing type bimetal welding tuyere and making method |
| 09/20/1994 | US5348430 Universal chuck for a machine for piercing a tap hole of a shaft furnace |
| 09/13/1994 | US5346531 Slag separator |
| 09/13/1994 | US5346186 Nozzle guard for blast furnace mudgun |
| 09/07/1994 | EP0613955A1 Loading device comprising a flow-control member |
| 08/24/1994 | EP0611740A1 Titanium-containing aggregate and use thereof for increasing the durability of refractory funace walls |
| 08/17/1994 | EP0611212A1 Feeding of pulver additives in a furnace |
| 08/17/1994 | CN2174479Y Improved monkey for steel-smelting furnace |
| 08/16/1994 | US5338013 Machine for piercing a taphole for a shaft furnace |
| 08/02/1994 | US5333840 Blast pipe and tuyere arrangement for a blast furnace and method |
| 08/02/1994 | US5333839 Machine for boring a tap hole of a shaft furnace |
| 07/20/1994 | EP0606608A1 Process and apparatus for the evacuation of solid residu from a gaspurification installation |
| 07/20/1994 | EP0606573A1 Process for cooling and cleaning of gases containing small particles, especially of melter gases or generator gases and installation therefor |
| 07/20/1994 | CN2172291Y Tapping hole opening drill for iron smelting furnace |
| 07/14/1994 | CA2113299A1 Method and device for removing solid residues from a gas purification installation |
| 07/13/1994 | EP0605968A1 Burner apparatus for metal processing furnaces |
| 07/06/1994 | CN2170951Y Conveying device for puddling furnace material dust jetting |
| 07/05/1994 | US5327453 Device for relief of thermal stress in spray cooled furnace elements |
| 06/29/1994 | EP0603979A1 Device for relief of thermal stress in spray cooled furnace elements |
| 06/29/1994 | CN2170307Y Device for adding coke at center of blast furnace |
| 06/23/1994 | DE4341318A1 Combined machine for opening and closing a furnace tap hole - comprising a carriage and drive for a tapping bar or borer and a plugging unit with piston and chamber for injecting a plugging mass |
| 06/22/1994 | EP0357795B1 Radiation construction method for molten metal outflow port, its apparatus and recess radiating impeller used for said apparatus |
| 06/22/1994 | CN2169632Y Air sealing device for blast furnace material-free top distribution gear box |
| 06/22/1994 | CN2169631Y Fully hydraulic outlet opening machine |
| 06/22/1994 | CN1088263A Process and apparatus for making granular coal by hammering and rolling |
| 06/22/1994 | CN1025123C Low-consumption efficient dumpy blast furnace |
| 06/16/1994 | DE4342222A1 Gas lance assembly - feeds lance into furnace between two sets of tandem concave rollers suitable for remote control to open furnace contg. molten metal |
| 06/15/1994 | CN2168872Y Dewatering unit of slag dewatering drum |
| 06/15/1994 | CN2168871Y Slag dewatering drum with filtering separation |
| 06/15/1994 | CN1025050C Device for injecting preheated air into shaft furnace |
| 06/08/1994 | CN2167995Y Energy-saving blast tube for blast furnace |
| 06/08/1994 | CN2167994Y Fluidizing device of coal blast furnace |
| 06/01/1994 | EP0599773A2 MgO-C brick containing a novel graphite |
| 05/18/1994 | EP0597270A2 A method for operating a multimedia tuyère and the tuyère system |
| 05/12/1994 | CA2102871A1 Method for operating a multimedia tuyere and the tuyere system |
| 05/11/1994 | EP0585422A4 Agricultural chemical distributor |
| 05/05/1994 | DE4304724C1 Additive for strengthening oven refractory walls - comprises residues from titanium di:oxide prodn, coal residues, iron- and iron oxide-contg residues |
| 05/03/1994 | US5308047 Machine for piercing a taphole for a shaft furnace |
| 04/27/1994 | CN2163175Y Iron residue tapping machine |
| 04/26/1994 | US5306209 Contaminant shield for viewing ports |
| 04/26/1994 | US5305990 Metallurgical furnace vacuum slag removal |
| 04/20/1994 | EP0592792A1 Tuyere assembly for insertion in a blast furnace wall |
| 04/06/1994 | EP0591052A1 Method for injecting plugging mud into the tap hole of a metallurgical vessel, such as blast furnace |
| 04/05/1994 | US5299900 Installation for charging a shaft furnace |
| 03/31/1994 | CA2107307A1 Process for injecting taphole clay in the taphole of a metal processing installation such as a blast furnace |
| 03/30/1994 | CN1084567A Oxygen-coal burner for blast-furnace and protecting method thereof |
| 03/30/1994 | CN1084566A Workshop structure for blast-furnace cast house |
| 03/23/1994 | CN1084220A Method for detecting leakage of blast furnace soft water sealed circulation cooling system |
| 03/22/1994 | US5295666 Cooling plates for blast furnaces and cooling installation employing this type of plate |