| Patents for C21B 9 - Stoves for heating the blast in blast furnaces (1,401) |
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| 05/31/2000 | CN1254761A Cold-wind cooler for burner of pre-combustion hot air furnace and its control method |
| 04/05/2000 | CN2372324Y Compact-type baking oven equipment for silica brick hot air furnace |
| 03/22/2000 | CN2370014Y Floating seal device for valve rod of hot air valve |
| 02/23/2000 | CN1049691C Life-prolonging method for ceramic combustor of hot-blast stove |
| 02/22/2000 | US6026657 Supplying compressed air |
| 02/10/2000 | WO2000006783A1 A direct smelting process |
| 01/26/2000 | CN1048757C Special tool for repairing blast furnace and hotblast furnace and its using method |
| 01/12/2000 | EP0970336A1 Combined installation of a furnace and an air distillation apparatus and use method |
| 12/15/1999 | CN2353763Y Bake oven for hot-blast stove |
| 12/08/1999 | CN1237639A High air-temperature high furnace space gas preheating method |
| 12/01/1999 | CN2351452Y Direct-mixing hot-blast stove |
| 10/27/1999 | CN2345545Y Multi-hole type short-flame ceramic burner of blast furnace hot blast stove |
| 09/21/1999 | CA2087465C Hot blast stove and method for constructing a hot blast stove |
| 09/15/1999 | CN2338620Y Hollow grate ceramic burner used in hot blast stove |
| 08/04/1999 | CN2331676Y Hot-blast valve for blast furnace |
| 08/04/1999 | CN2331675Y Grid-type smoke uniform dispensing equipment for hot-blast stove of blast furnace |
| 08/04/1999 | CN2331674Y Cold-blast distribution regulator for hot-blast stove of blast furnace |
| 07/29/1999 | WO1999037963A1 Combined installation of a furnace and an air distillation apparatus and use method |
| 07/14/1999 | CN1044134C Blast furnace gas temp. regulation system |
| 07/08/1999 | DE19747903A1 Cooled slider plate, in particular, water cooled slider plate for hot air ducts |
| 05/27/1999 | WO1999026020A1 Ceramic burner for gases and regenerative heat generator provided with the said burner |
| 05/05/1999 | CN1043269C Cooled gate valve disk |
| 04/29/1999 | WO1999020800A1 Method and device for injecting reducing agents in a shaft furnace |
| 04/28/1999 | CN2316321Y Horizontal heat-exchange reduster for cupola |
| 04/22/1999 | WO1999019519A1 Cowper stove battery |
| 04/14/1999 | EP0908692A2 Process for operating a regenerator and regenerator |
| 03/31/1999 | CN1212289A Process and plant for supplying blast furnace |
| 03/24/1999 | CN1211623A Dry-off oven device for blast furnace |
| 02/17/1999 | CN1208079A Blast furnace and hot-blast stove water-cooling system with valves |
| 01/20/1999 | EP0892078A1 Grating for a recuperator |
| 01/14/1999 | DE19730841C1 Brickwork support grating for blast heater stove |
| 01/13/1999 | CN1204548A Solid electrolyte systems for use with furnaces |
| 01/07/1999 | EP0888805A2 Process for oxygen-enriching using a solid electrolyte system |
| 01/05/1999 | US5855648 Solid electrolyte system for use with furnaces |
| 11/25/1998 | CN2298259Y Gas stop valve |
| 10/14/1998 | CN1040230C Connecting structure of outer combustion stove for heating blast in blast furnace |
| 10/07/1998 | EP0815264B1 Shut-off device for use with high-temperature mediums |
| 09/23/1998 | CN1193664A Multi-element co-cementating technology for thermal resistant hot air valve |
| 09/09/1998 | EP0609406B1 Shut-off valve |
| 07/29/1998 | CN2286753Y Temp. deforming compensator for large furnace hot-air pipeline |
| 07/29/1998 | CN1188808A Technology for double preheating by using blast-furnace hot-blast stove gas, and combustion-supporting air |
| 07/16/1998 | DE19700768A1 Economical disposal of gases leaking from e.g. doors of metallurgical coke production batteries |
| 06/24/1998 | CN1038852C Method for reducing combustion pulsation of blast furnace and hot blast furnace |
| 06/10/1998 | EP0727022B1 Cooled gate valve disk |
| 06/09/1998 | US5762099 Valve system |
| 05/20/1998 | CN1182181A Gate brick, its masonry method and brick masonry mending method for regenerative chamber of hot-blast stove |
| 01/28/1998 | CN2273311Y Ball type hot-blast stove for over 250 M3 blast furnace |
| 01/21/1998 | CN2272897Y Fuel oil hot-blast stove |
| 01/07/1998 | EP0815264A1 Shut-off device for use with high-temperature mediums |
| 12/23/1997 | CA2109001C Hot-blast main for hot-blast stove system of a blast furnace |
| 12/03/1997 | CN1166529A Life-prolonging method for ceramic combustor of hot-blast stove |
| 11/19/1997 | CN1165198A Blast furnace gas temp. regulation technology system |
| 07/09/1997 | CN1035392C Hot blast stove and method for constructing the same |
| 06/04/1997 | CN2255432Y Sealing device for moving device of hot-air conveying pipe of ironmaking blast furnace |
| 05/28/1997 | CN2254892Y Double direction automatic wind-distribution device for blast main pipe of blast furnace |
| 02/19/1997 | CN1143119A Special tool for repairing blast furnace and hot-blast furnace and its using method |
| 12/17/1996 | CA2027045C Hot blast main constructions including a junction |
| 12/11/1996 | CN2242250Y Apparatus for compensating deformation of hot air pipe caused by temp. changement for medium or small size blast furnace |
| 11/13/1996 | CN1135787A Cooled gate valve disk |
| 11/13/1996 | CN1033275C Hot-blast stove with flue-gas uniform distribution device |
| 10/23/1996 | EP0612386B1 Stop slide valve |
| 10/02/1996 | EP0735145A1 Valve system |
| 09/26/1996 | WO1996029434A1 Shut-off device for use with high-temperature mediums |
| 09/10/1996 | US5554230 Low dew point gas generator cooling system |
| 08/21/1996 | EP0727022A1 Cooled gate valve disk |
| 08/08/1996 | DE19510544C1 Appts. for blocking high-temp. media |
| 07/23/1996 | US5538534 Combined installation of a metal production unit and a unit for the separation of air gas |
| 06/27/1996 | DE4446395A1 Rotary vane valve for hot gas pipelines with lattice support |
| 06/26/1996 | CN2229929Y Positioning device for changing telescopic tube of hot-blast-stove |
| 02/27/1996 | US5494026 Dome connecting structure of external combustion hot stove for blast furnace |
| 02/27/1996 | CA2019123C Ceramic gas burner for a hot blast stove, and bricks therefor |
| 01/24/1996 | CN2218184Y High temperature and high performance indirect air heating furnace |
| 12/27/1995 | CN1113957A Method for reducing blast furnace and hot blast cupola combustion pulsation |
| 12/13/1995 | CN2214950Y Blast branch joint of blast furnace |
| 11/29/1995 | EP0684317A1 Regenerative chamber lining and method of installation |
| 10/31/1995 | US5462433 Device for blowing preheated air into a shaft furnace |
| 10/18/1995 | CN2210194Y Blast furnace gas preheating equipment |
| 08/23/1995 | CN1029565C Ceramic burner for a hot-blast stove of blast furnace |
| 08/16/1995 | CN2205389Y Equicircular arc lattice seven hole lattice brick |
| 08/02/1995 | EP0613536B1 Obturator for media at high temperatures |
| 07/26/1995 | CN1105752A Combined installation of a metal production unit and a unit for the separation air gas |
| 07/18/1995 | US5433599 Ceramic burner for a hot-blast stove of a blast furnace |
| 06/28/1995 | CN2202130Y Long-life horizontal hot-blast stove |
| 06/13/1995 | US5423519 Regenerative chamber lining and method of installation |
| 05/18/1995 | WO1995013493A1 Cooled gate valve disk |
| 05/17/1995 | EP0653599A1 Combined installation of a metal production unit and a separation unit of gases from air |
| 04/26/1995 | CN1101946A Connecting structure of outer combustion stove for heating blast in blast furnace |
| 03/14/1995 | US5396920 Water-cooled housing for a hot-blast slide valve |
| 01/04/1995 | EP0632136A1 Dome connecting structure of external combustion hot stove for blast furnace |
| 12/27/1994 | US5375817 Hot blast stove and method for constructing a hot blast stove |
| 12/07/1994 | CN1096055A Hot-blast stove with flue-gas uniform distribution device |
| 10/25/1994 | US5358223 Hot-blast main for hot-blast stove system of a blast furnace |
| 10/18/1994 | US5356220 Method and apparatus for monitoring temperature of blast furnace and temperature control system using temperature monitoring apparatus |
| 10/05/1994 | EP0618301A1 Device for injecting preheated air into a shaft furnace |
| 09/21/1994 | CN2177728Y Waterless-cooled hot-blast valve |
| 08/17/1994 | EP0611270A1 Preheating device for a gaseous fluid |
| 08/10/1994 | EP0609406A1 Shut-off valve |
| 06/29/1994 | CN1025220C Blowing method and device for blast furnace blower |
| 03/22/1994 | US5295351 Air separation |
| 02/03/1994 | WO1994002764A1 Shut-off valve |