| Patents for C21B 9 - Stoves for heating the blast in blast furnaces (1,401) |
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| 08/16/2007 | WO2007090747A1 Bleeder valve for pressurised furnace |
| 08/16/2007 | CA2637210A1 Bleeder valve for pressurised furnace |
| 08/15/2007 | EP1818418A1 Bleeder valve for pressurised furnace |
| 08/09/2007 | DE102004054065B4 Verfahren zur Roheisenerzeugung in einem Hochofen mit maximalem Einsatz von Ersatzreduktionsmitteln und minimiertem Koksverbrauch Process for the production of pig iron in a blast furnace with maximum use of alternative reducing agents coke consumption and minimized |
| 08/02/2007 | US20070175297 Launder burner |
| 07/26/2007 | US20070170624 Method for renovating a combined blast furnace and air/gas separation unit system |
| 06/27/2007 | CN2915875Y Annular body porous short flame combustor |
| 06/19/2007 | US7232542 Preheating cold blast air of a blast furnace for tempering the hot blast temperature |
| 05/23/2007 | CN2903084Y Air flow guiding apparatus of air delivery tower by fan |
| 05/16/2007 | CN2900546Y Blast furnace combined air-gas doulbe preheating waste heat recovery device |
| 05/09/2007 | EP1783233A1 Refractory burner brick |
| 05/09/2007 | EP1781828A2 Device for protecting metallic surfaces from condensates of high-temperature corrosive media in technical installations |
| 05/02/2007 | CN2895430Y Refractory ball for ball type hot-blast furnace |
| 04/25/2007 | CN1952181A Crank cut-off valve |
| 04/25/2007 | CN1312296C Optimizing control method for hybrid type blast furnace hot blast stove |
| 04/11/2007 | CN2887884Y Nineteen-pore cellular checker brick |
| 04/04/2007 | CN1940091A Process and apparatus for utilizing medium-temperature smoke pre-heating combustion-supporting coal gas and air in hot-air stove |
| 02/28/2007 | CN1922333A Direct smelting plant and process |
| 02/21/2007 | CN1916188A Hot blast furnace with mixed burner at top part |
| 02/21/2007 | CN1301335C High-air temp hot-blast stove for blast furnace |
| 02/14/2007 | EP1751486A1 Heat exchanger |
| 02/14/2007 | CN2869028Y Ball type hot-blast stove for 250M above blast furnace |
| 02/14/2007 | CN1912147A Process for blast dewet of ironmaking blast furnace and its equipment |
| 02/07/2007 | CN1908193A Compensation process of high furnace iron-making air blast system |
| 01/31/2007 | CN2863813Y High-air temperature multi-functional grouping residual heat system for blast furnace |
| 01/31/2007 | CN1904083A Non symmetrical valve body of hot air valve |
| 01/31/2007 | CN1904082A Valve plate of hot air valve |
| 01/25/2007 | WO2006082056A3 Support assembly for supporting heat regeneration checker work in a hot blast stove, hot blast stove provided with said support assembly, method of producing hot air using said hot blast stove |
| 01/24/2007 | EP1746375A2 Oxy-fuel combustion system and uses therefor |
| 01/24/2007 | CN2861172Y Gas mixing ceramic burner |
| 01/24/2007 | CN2861171Y Mixed burner for three gas |
| 01/24/2007 | CN2861170Y External-combustion ceramic burner for blast furnace hot blast stove |
| 01/24/2007 | CN2861169Y Top burning hot blast stove with high smoke-discharging temperature |
| 01/24/2007 | CN1296495C High wind temperature obtaining method using pure blast furnace gas combustion |
| 01/17/2007 | CN1896895A Automatic controller of blast-furnace tuyere pour slag |
| 01/10/2007 | CN2856729Y Strongly mixed burner having multi-layer convection |
| 01/03/2007 | CN1888086A Technological process and apparatus for heating high concentration CO and other reducing gas |
| 01/03/2007 | CN1888085A No-fluctuation hot blast stove converting method |
| 01/03/2007 | CN1888084A Hot blast stove with heat accumulating burner |
| 01/03/2007 | CN1888083A Hot blast stove burning method |
| 12/20/2006 | CN2848865Y Air blast branch pipe of blast furnace |
| 12/06/2006 | CN1288369C Sealer of liquid state alloy multiring connectopr composed by valve cover and valve seat |
| 11/29/2006 | CN1869250A Ring body multi-hole short flame burner |
| 11/15/2006 | CN2837308Y Air-cooling type hot blast valve |
| 11/15/2006 | CN1862091A Flame length controllable high-efficient burner |
| 11/08/2006 | CN2835249Y Hot blast furnace with mixed burner on the top |
| 11/08/2006 | CN1858492A Multiple fire hole flame-free ceramic burner |
| 11/01/2006 | CN2833667Y Automatic blast-furnace tuyere slag control apparatus |
| 10/19/2006 | WO2006021176A3 Device for protecting metallic surfaces from condensates of high-temperature corrosive media in technical installations |
| 10/18/2006 | CN2828057Y Blast furnace coal-dust blowing pipeline |
| 09/27/2006 | CN1837377A Slag-back prevention and parallel aeration process for blast furnace |
| 09/07/2006 | US20060199135 Metal heater |
| 08/23/2006 | CN2808922Y Blast connection for blast furnace |
| 08/23/2006 | CN1271220C Blast furnace hot blast stove ceramic burner with central circumferential flow column |
| 08/16/2006 | CN2806493Y Constant pressure stove changing device of blast furnace hot blast stove |
| 08/16/2006 | CN1269973C Warm up method of combustion supporting air through coal gas from blast furnace hot blast stove in high temperature |
| 08/10/2006 | WO2006082056A2 Support assembly for supporting heat regeneration checker work in a hot blast stove, hot blast stove provided with said support assembly, method of producing hot air using said hot blast stove |
| 07/26/2006 | CN1807353A Preparation method of high-strength high-alumina refractory ball for smelt |
| 07/19/2006 | CN2797379Y Double layer shell blast branch tube for blast furnace |
| 07/19/2006 | CN2797377Y Purifier for thermometallurgy smoke |
| 07/13/2006 | US20060150776 Heat treating a starting material containing a metal salt and a fatty acid in the presence of an amine compound and in an inert gas atmosphere, wherein the amine compound and the starting material containing a metal salt and a fatty acid are solid at the beginning of the heat treatment |
| 06/28/2006 | CN2791481Y Multi-hoie flame less ceramic burner |
| 06/28/2006 | CN2791062Y Complete device for two blast furnace blowing in using three blowers |
| 06/14/2006 | CN2787675Y Top burning hot blast stove |
| 05/24/2006 | CN1775958A Efficien hot-blast stove |
| 05/10/2006 | CN1769501A Energy-saving hot blast valve using little water |
| 05/03/2006 | CN1766130A Harmonization control method for blast furnace hot blast stove system |
| 03/15/2006 | CN2764788Y Drum type gas heater |
| 03/02/2006 | WO2006021176A2 Device for protecting metallic surfaces from condensates of high-temperature corrosive media in technical installations |
| 03/02/2006 | CA2577541A1 Device for protecting metallic surfaces from condensates of high-temperature corrosive media in technical installations |
| 03/01/2006 | CN2761624Y Cold air releasing valve |
| 03/01/2006 | CN2761623Y Fast pressurization device of hot air furnace |
| 02/15/2006 | CN2758271Y Nineteen hole checker brick |
| 02/08/2006 | CN1730672A Double layer fireproof linings branch blast tube of blast furnace |
| 02/02/2006 | US20060021470 Compositions for enhancing biological functions in organisms |
| 02/01/2006 | CN2755101Y Hot air pipeline compensating device for main pipe and periphery pipes at different hights |
| 02/01/2006 | CN1727499A High temperature primary heater unit of blast furnace hot blast stove and technique |
| 02/01/2006 | CN1727498A Top burning type hot blast stove with thermal insulation layer in precombustion chamber |
| 01/25/2006 | CN2754006Y Air-cooled chamber for hot-blast furnace |
| 01/12/2006 | WO2004089831A3 Stable self-organizing plant-organism systems for remediating polluted soils and waters |
| 12/28/2005 | CN2748470Y High-efficiency energy-saving high-blast-temperature large-scale ball type hot blast stove |
| 11/24/2005 | WO2005111524A1 Heat exchanger |
| 11/24/2005 | DE102004054065A1 Method for pig iron production in a blast furnace with low coke consumption using a high carbon content containing reducing agent |
| 11/24/2005 | CA2566136A1 Heat exchanger |
| 11/02/2005 | CN2737801Y Reverser for blast furnace hot blast stove |
| 10/26/2005 | CN2736365Y Flow sharing device for cold air and smoke from hot blast stove |
| 10/12/2005 | CN1680608A External distributor style top-burning hot-air furnace |
| 10/11/2005 | CA2135568C Combined installation for the production of metal and the separation of gas from air |
| 10/05/2005 | CN1676619A Blast furnace hot-blast stove combustion automatic control method based on example inference |
| 10/05/2005 | CN1676489A Refractory ball for blast furnace ball type hot-blast stove |
| 09/07/2005 | CN1664115A Intensification smelting technology in blast furnace at superhigh utilization coefficient |
| 09/01/2005 | WO2005080608A1 Direct smelting plant and process |
| 08/17/2005 | CN2717968Y Top combustion stove with heat insulating layer on top combustion chamber |
| 06/29/2005 | CN1208474C Thermal state method for restoring branch pipe orifice of blast furnace bustle pipe |
| 06/22/2005 | CN2705465Y Hot-air furnace heated from air path two ends of hot-air furnace heat storage group |
| 06/22/2005 | CN2705464Y High temperature hot-air furnace |
| 06/15/2005 | CN1626681A High temperature hot blast furnace |
| 06/08/2005 | CN1624159A Hot-blast stove heating from dual-end of air pipe of heat storage device set |
| 06/01/2005 | CN1621536A Blast furnace hot blast stove ceramic burner with central circumferential flow column |
| 06/01/2005 | CN1204269C Heat storage honeycomb type high temp wind generator |