| Patents for C21B 9 - Stoves for heating the blast in blast furnaces (1,401) |
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| 03/08/2011 | US7901617 Heat exchanger |
| 03/02/2011 | EP2290312A1 Oxy-fuel combustion system & uses therefor |
| 02/17/2011 | US20110039220 Horizontal type high-temperature hot-blast stove |
| 02/16/2011 | CN201746567U Hydraulic quick-acting switching-off control device for gas switching-off valve used for blast stove |
| 02/16/2011 | CN201746566U Lattice brick |
| 02/16/2011 | CN201746565U Checker brick masonry corrector for hot blast stove |
| 02/16/2011 | CN101974660A Cofiring-type hot blast stove |
| 02/16/2011 | CN101338346B Process for coating fire-resistant material on hot blast valve plate |
| 02/09/2011 | CN201737966U Heat preservation system of silica brick blast furnace |
| 02/09/2011 | CN201737965U Automatic optimizing combustion intelligent control system of hot blast stove |
| 02/02/2011 | CN101381786B Top burning hot blast stove using annular airflow spray upward with premixing combustion and reflux heating |
| 01/26/2011 | CN201722401U Full-welding type three-flow-process corrugated plate air preheater |
| 01/26/2011 | CN201722400U All-welded double-flow gas preheater with corrugated plates |
| 01/20/2011 | DE212008000117U1 Der horizontale Hochtemperatur-Heißwindofen The horizontal high-temperature hot blast furnace |
| 01/19/2011 | CN201713535U Dehumidifying device for blast-furnace blowing |
| 01/12/2011 | EP2142676B1 Method for constructing a support ring in a curved wall |
| 01/05/2011 | CN201695058U Universal wheel rod used for measuring blast-furnace hot blast stove |
| 01/05/2011 | CN201695056U Straight blowing pipe used in blast furnace air supply device in iron manufacture |
| 01/05/2011 | CN101608798B Method for controlling air-fuel ratio of hot blast furnace |
| 01/05/2011 | CN101525676B Oscillating bar crank isolating valve |
| 12/29/2010 | CN101928797A High-blast-temperature energy-saving and emission-reducing combined type preheating system for blast furnace |
| 12/29/2010 | CN101928796A High wind temperature energy saving and emission reduction combined preheating method for blast furnace |
| 12/23/2010 | US20100323314 Hot Air Stove |
| 12/22/2010 | EP1781828B1 Device for protecting metallic surfaces from condensates of high-temperature corrosive media in technical installations |
| 12/22/2010 | CN201678693U Oxygen-enriched blending combustion device of hot blast heater |
| 12/22/2010 | CN101333572B External sealing valve cap of hot-blast valve |
| 12/15/2010 | CN201670851U 37-hole checker brick |
| 12/08/2010 | CN101906496A High-blast-temperature hot-blast stove burnt in convection swirling heat storage medium |
| 12/08/2010 | CN101906495A Gas preheating combined heat pipe exchanger |
| 12/01/2010 | CN201660650U Hot-blast stove for iron-making production |
| 12/01/2010 | CN101899545A On-line changing method of hot blast main duct of blast furnace |
| 11/25/2010 | WO2010133563A1 Device for regulating the temperature of a gas in a hot gas main |
| 11/25/2010 | WO2010133476A1 Method for operating a regenerative heater |
| 11/25/2010 | CA2761852A1 Method for operating a regenerative heater |
| 11/25/2010 | CA2760763A1 Device for regulating the temperature of a gas in a hot gas main |
| 11/24/2010 | EP2253723A1 Device for regulating the temperature of a gas in a hot gas main |
| 11/24/2010 | CN201648428U Double-preheating system of regenerative air heating furnace |
| 11/24/2010 | CN101892338A Constant wind temperature control system for hot blast stove |
| 11/17/2010 | CN201634705U Connecting mechanism for butterfly valve of raw coke oven gas pipe |
| 11/17/2010 | CN201634704U Environment-friendly high-temperature low-oxygen hot blast furnace |
| 11/17/2010 | CN201634703U 37-hole checker brick with hexagonal brick holes |
| 11/17/2010 | CN201634702U High-temperature and low-oxygen top-combustion type hot-blast stove |
| 11/17/2010 | CN201634701U High-temperature and low-oxygen external combustion type hot-blast stove |
| 11/17/2010 | CN101886207A GRTCr heat resisting iron casting for hot-blast furnace and production method thereof |
| 11/10/2010 | CN201626969U Checker brick with interflowing hole by taper hole cross arrangement |
| 11/10/2010 | CN101881463A Intelligent control method of automatic optimizing combustion of hot blast heater |
| 11/10/2010 | CN101880742A Hot blast stove |
| 11/10/2010 | CN101880741A Two-speed wind distributing method for blast furnace blower |
| 11/03/2010 | CN1624159B Hot-blast stove heating from dual-end of air pipe of heat storage device set |
| 11/03/2010 | CN101875989A Hot blast stove for refining iron and improved construction process |
| 11/03/2010 | CN101603108B Method for preventing intergranular stress corrosion of vault of hot blast heater |
| 10/27/2010 | CN201614383U 凹槽连通的锥形孔格子砖 Conical recess communicating Kong Gezai brick |
| 10/27/2010 | CN201614382U 锥孔互通的新型表层格子砖 Cone surface grid interoperability of the new brick |
| 10/27/2010 | CN101871654A Intelligent control system of automatic optimizing combustion of hot-blast stove |
| 10/21/2010 | WO2010076211A9 Bustle pipe arrangement |
| 10/21/2010 | WO2010076210A9 Bustle pipe arrangement |
| 10/20/2010 | CN101864504A Method for raising air temperature of hot blast stove by recovering sensible heat of blast furnace slag |
| 10/06/2010 | CN101851693A Blast furnace blower redundancy anti-surge control method |
| 09/30/2010 | US20100244336 LOW NOx FUEL INJECTION FOR AN INDURATING FURNACE |
| 09/29/2010 | CN101545021B Blast branch pipe of blast furnace |
| 09/29/2010 | CN101328519B Hot air valve cover |
| 09/23/2010 | WO2010106026A1 Method for feeding hot gas to a shaft furnace |
| 09/23/2010 | CA2752123A1 Method for feeding hot gas to a shaft furnace |
| 09/15/2010 | CN201581101U Valve plate of common hot blast valve |
| 09/15/2010 | CN201581100U Efficient and energy-saving burner for top combustion stove |
| 09/08/2010 | CN201574160U Top combustion hot-blast stove with novel combustion device |
| 09/08/2010 | CN201574159U Novel top burning hot blast stove |
| 09/01/2010 | CN101818224A Stable-pressure combustion cross-flow mixing hot blast stove |
| 08/25/2010 | CN201561650U Composite 19-hole checker brick |
| 08/25/2010 | CN201560207U Blast furnace blast-dehumidification device utilizing waste heat of flue gas from hot blast furnace |
| 08/25/2010 | CN201560206U Heat-resistant hot blast valve for hot-blast furnace |
| 08/25/2010 | CN201560205U Hot wind short pipe block |
| 08/18/2010 | CN201555454U Composite 37-hole checker brick |
| 08/18/2010 | CN201553751U Axial flow type regulating valve |
| 08/18/2010 | CN201553750U Novel top-burning hot-blast stove |
| 08/11/2010 | CN101440886B Electric emergency cut-off valve |
| 08/04/2010 | CN201538783U Cold air pressure equalizing valve of hot blast stove |
| 08/04/2010 | CN101792839A Environment-friendly high temperature low oxygen hot blast furnace |
| 08/04/2010 | CN101792838A High-temperature low-oxygen internal-combustion-type air heating furnace |
| 08/04/2010 | CN101792837A High-temperature low-oxygen top-combustion-type air heating furnace |
| 07/28/2010 | CN201534856U 预热炉送风流道环墙 Preheat oven to send Merry Road ring wall |
| 07/21/2010 | EP2208953A1 Bustle pipe arrangement |
| 07/21/2010 | EP2208952A1 Bustle pipe arrangement |
| 07/14/2010 | CN201525853U High-wind-temperature long-life type two-stage double-preheating device |
| 07/14/2010 | CN201525852U Baking equipment of hot blast stove |
| 07/14/2010 | CN101328518B Hot air valve body |
| 07/08/2010 | WO2010076211A1 Bustle pipe arrangement |
| 07/08/2010 | WO2010076210A1 Bustle pipe arrangement |
| 07/08/2010 | CA2748582A1 Bustle pipe arrangement |
| 07/08/2010 | CA2746843A1 Bustle pipe arrangement |
| 07/07/2010 | CN201522199U Novel 37-hole fireproof lattice brick |
| 07/07/2010 | CN201522198U Novel 19-hole fireproof lattice brick |
| 07/07/2010 | CN201520774U Device for adjusting gas temperature in hot air main pipe |
| 07/01/2010 | US20100164149 Center Backfire Inner Heat Regenerative Energy Saving High Efficiency Furnace and Tank Integration Reduction Furnace System |
| 06/30/2010 | CN201517772U Grid ceramic burner of hot-blast stove |
| 06/30/2010 | CN101760576A Repatching method for top liner of blast furnace hot-wind pipeline |
| 06/23/2010 | CN201514121U Centre runner brick |
| 06/23/2010 | CN201512548U Device for disassembling and assembling wind pipe of blast furnace |
| 06/23/2010 | CN101748231A Double-preheating system of heat accumulation type hot-blast furnace |
| 06/23/2010 | CN101748230A High-temperature low-oxygen external combustion stove |