| Patents for C21B 7 - Blast furnaces (8,339) |
|---|
| 02/06/1991 | CN1011516B Apparatus for controlling hydraulic jacks fixed to slewing hopper |
| 02/05/1991 | US4989839 Automatic tuyere puncher |
| 01/29/1991 | US4987838 Device for injecting preheated air into a shaft furnace |
| 01/23/1991 | CN2069861U Weighing system for coal-blasting series tank of blast furnace |
| 01/23/1991 | CN2069860U Bell floating elevator with double hydraulic cylinder |
| 01/22/1991 | US4986516 Sealing shutter for a shaft furnace |
| 01/10/1991 | CA2019204A1 Tundishes, unitary tundish linings with flow-control devices, and method of forming the same |
| 01/08/1991 | CA1278680C Powdery material injection device, namely coal, for blast furnace |
| 01/03/1991 | DE3921215A1 Counter-blow tap hole manipulator - for blast furnaces with interlock for rod head |
| 01/02/1991 | EP0405207A2 Device for coupling a drill rod for tapholes of shaft furnaces to the working tool of a drilling machine |
| 01/02/1991 | CN2068510U Fine coal blowing unit of blast furnace |
| 01/02/1991 | CN1048235A Guide barrel construction for transferring iron melt |
| 12/31/1990 | CA2017415A1 Device for coupling a rod for drilling the taphole of a shaft furnace to the working tool of a drilling machine |
| 12/27/1990 | EP0404212A1 Channel structure for flow of molten pig iron |
| 12/26/1990 | CN1010954B Installtion for charging shaft furnace |
| 12/12/1990 | EP0420851A4 Measurement of blast furnace raceway parameters. |
| 12/11/1990 | US4976780 Blast furnace operation management method and apparatus |
| 12/05/1990 | CN1010695B Installation for charging shaft furnace |
| 11/21/1990 | CN2066029U Compound mechanism hydraulic low clay gun |
| 11/14/1990 | CN1046941A Blast furnace top distributing assemblage |
| 11/07/1990 | EP0229048B1 Gas burner |
| 11/06/1990 | US4969035 Observation of furnace interior |
| 10/31/1990 | EP0394443A1 Method and apparatus for preliminary treatment of hot metal |
| 10/31/1990 | CN2064774U Stiffness-flexibility coordinated device of in-series tanks for ejecting pulverized coal to the blast-furnace |
| 10/31/1990 | CN1010231B Operaitng gear for measuring valve |
| 10/25/1990 | DE3920223A1 Vorrichtung zum einblasen von vorerhitzter luft in einen schachtofen Device for injecting preheated air into a shaft furnace |
| 10/24/1990 | EP0393020A1 A method to generate an oxidizing flame, a burner and a use for a burner |
| 10/04/1990 | WO1990011377A1 Consumable furnace components |
| 10/02/1990 | US4960379 Process and apparatus for opening furnace tapholes |
| 09/26/1990 | CN1009735B Device for closing top central opening of vessel, and its application to storage hopper in shaft furnace charging installation |
| 09/25/1990 | US4959085 Process and installation for the treatment of a stream of gas containing pyrophoric dust |
| 09/05/1990 | CN2061567U Furnace throat adjustable folding charging guide plate for blust furnace |
| 09/05/1990 | CN1045126A Vent of blast furnace and method for making same |
| 08/28/1990 | CA1273198A1 Multilayered refractory structure, and wall fitted with a structure of the kind |
| 08/22/1990 | EP0383184A1 Method of decreasing the fume emission and the free entry of air in the tap hole region of a blast furnace |
| 08/22/1990 | EP0383093A2 Method for the pneumatic and dosed injection of pulverised material into a vessel, subjected to a variable pressure |
| 08/21/1990 | US4949940 Charging arrangement for shaft furnaces, in particular blast furnaces |
| 08/16/1990 | EP0381921A2 Control valve for a counter-blow tapping-hole drill |
| 08/16/1990 | DE4001791A1 Blast furnace tap-hole drill steel - made of tube with welded cutter head |
| 08/15/1990 | CN1044608A Method for avoiding generation of flue gas in metallurgical process and during transportation of melted metal from metallurgical vessel to pouring vessel |
| 08/14/1990 | CA2010040A1 Process for reducing dust emission and free air access in the tapping region of a blast furnace |
| 08/09/1990 | WO1990008842A1 Process for preventing the formation of flue gases in metallurgical processes and during the transport of molten metal from a metallurgical vessel to casting vessels and device for transporting molten metals from a metallurgical furnace to a casting vessel |
| 08/06/1990 | CA2009309A1 Method of preventing fume production during metallurgical processes and when transporting molten metal from a metallurgical vessel to casting and apparatus for transporting moltenmetal from a metallurgical furnace to a casting vessel |
| 08/01/1990 | CN1044301A Method and device for opening taphole of shaft furnace |
| 07/25/1990 | EP0379018A2 Process and device for opening the taphole of a shaft furnace |
| 07/25/1990 | CN1044132A Surface treating for tuyere or slag escape of blast furnace |
| 07/25/1990 | CN1008939B Process and apparatus for charging a shaft furnace |
| 07/24/1990 | US4942986 Pressurized tundish for controlling a continuous flow of molten metal |
| 07/18/1990 | CN1043986A Sealing shutter for shaft furnace |
| 07/17/1990 | US4941792 Handling device for a distribution chute of a shaft furnace and drive mechanism suitable for this device |
| 07/16/1990 | CA2007184A1 Method and device for opening the taphole of a shaft furnace |
| 07/11/1990 | CN1043748A Top feed distributor of blast furnace |
| 07/11/1990 | CN1043747A Device for reducing the stresses on sealing shutter |
| 07/11/1990 | CN1043746A Handling molten materials |
| 07/11/1990 | CN1043745A Blast furnace operation management method and apparatus |
| 07/11/1990 | CN1008744B Charging apparatus of blast furnaces |
| 07/11/1990 | CN1008743B Charging arrangement for blast furnace |
| 07/03/1990 | US4938456 Metallurgical panel structure |
| 06/27/1990 | EP0375282A2 Blast furnace operation management method and apparatus |
| 06/27/1990 | EP0375007A1 Handling molten materials |
| 06/27/1990 | EP0374642A1 Observation of furnace interiors |
| 06/27/1990 | CN1008516B Apparatus for separately pouring molten metal and metallurgical slag from mixture of melten metal metallurgical slag |
| 06/20/1990 | CA2006035A1 Observation of furnace interiors |
| 06/13/1990 | EP0372286A1 Apparatus for installing cooling elements in the interior of a blast furnace |
| 06/13/1990 | CN1042944A Mechanical type monitor for detecting of shape of feed surface in blast furnace |
| 06/13/1990 | CN1008363B A magnesia-carbon brick and its process |
| 06/12/1990 | CA1270310A1 Method for controlling operation of a blast furnace |
| 06/06/1990 | CN1042772A Installation for charging shaft furnace |
| 06/05/1990 | CA1269832A1 Process and apparatus for charging a shaft furnace |
| 06/05/1990 | CA1269831A1 Process for controlling the charging of a shaft furnace |
| 05/23/1990 | CN1042382A Coal dust blasting automatic controlling device for blast-furnace |
| 05/23/1990 | CN1008116B Assembling and disassembling device for bell-less charge-distributing chute on furnace top |
| 05/10/1990 | DE3934997A1 Charging system for shaft furnace - has closure and deflection baffle in hopper, slidable vertically and axially, and bucket flap |
| 05/09/1990 | CN2056923U Hung hydraulic notch gun for iron-smelting blast furnace |
| 05/01/1990 | CA1268381A1 Rebuilding of a blast furnace stack bosh, and hearth using a vertical remote controlled refractory gunning apparatus |
| 04/25/1990 | CN2056425U Tap hole opening machine |
| 04/18/1990 | EP0363906A1 Installation for charging a shaft furnace, in particular a blast furnace |
| 04/18/1990 | EP0363576A1 Apparatus for blowing preheated air into a shaft furnace |
| 04/18/1990 | CN1041394A Installation for charging shaft furnace |
| 04/04/1990 | CN1007431B Tuyere of blast furnace |
| 04/03/1990 | US4913649 Repair of the refractory lining of the wall of a shaft furnace and a repaired shaft furnace |
| 04/03/1990 | CA1267435A1 Method and means for use in the installation of plasma generators in shaft furnaces |
| 03/21/1990 | EP0358711A1 Plasma fired feed nozzle. |
| 03/20/1990 | US4909487 Process and notch gun for closing the tapholes of furnaces |
| 03/14/1990 | EP0357795A1 Radiation construction method for molten metal outflow port, its apparatus and recess radiating impeller used for said apparatus |
| 03/14/1990 | CN1007178B Apparatus for energy recovery from furnace waste gas |
| 03/07/1990 | EP0172913B1 Process and device for removing impurities contained in melted iron flowing from shaft furnace |
| 02/22/1990 | WO1990001665A1 Process and device for cleaning conveying channels |
| 02/15/1990 | DE3903444C1 Method and apparatus for transporting liquid metal from a metallurgical furnace to a casting vessel |
| 02/14/1990 | CN1039650A Device for controlling charge shoot of vertical furnace and device for driving same |
| 02/13/1990 | US4901247 Method for controlling an operation of a blast furnace |
| 02/07/1990 | CN2052521U Blast furnace top |
| 02/07/1990 | CN1039445A Disposition of injection of hot air for shaft furnace |
| 02/06/1990 | US4898600 Apparatus for recovering high temperature blast furnace gas |
| 01/24/1990 | CN1006554B Process for controlling charging of shaft furnace |
| 01/23/1990 | US4895349 Apparatus and method for boring through the taphole in a molten metal blast furnace |
| 01/16/1990 | US4893794 Device for mounting a gripper to a piercing machine |
| 01/16/1990 | US4893735 Apparatus for controlling hydraulic jacks mounted on a rotary hopper |
| 01/09/1990 | US4892293 Brick casting method of making a stave cooler |
| 01/02/1990 | US4890503 Method for probing inside a blast furnace with a pressurized probe |