| Patents for C21B 7 - Blast furnaces (8,339) |
|---|
| 01/08/1992 | CN1057725A Magnifierless regulator of proportional valve for stuff flow of bell-less top of blast furnace |
| 01/08/1992 | CN1057677A Temperature measurement of brick lining in blast furnace chamber |
| 01/06/1992 | WO1992001071A1 Device for rapidly repairing the headplate of a blast furnace |
| 01/06/1992 | CA2059653A1 Device for rapidly repairing the headplate of a blast furnace |
| 01/01/1992 | CN2091866U Blast furnace with heat circulation |
| 12/18/1991 | CN2090827U Multi-chamber combined tuyere for blast furnace or iron-melting furnace |
| 12/10/1991 | US5070797 Process and device to feed additives into a shaft or cupola furnace |
| 12/04/1991 | CN1014995B Multi-ring loading chute and method of controlling feed distribution |
| 12/03/1991 | US5069430 Blast furnace tap hole drill with centralizing drill rod support |
| 11/26/1991 | CA1292370C Device for the movement of a shaft furnace probe |
| 11/21/1991 | EP0456994A1 Drill shaft for boring the taphole of a blast furnace |
| 11/21/1991 | EP0456641A1 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. |
| 11/21/1991 | DE4027289A1 Blast furnace tap-hole drill rod |
| 11/13/1991 | CN1056127A Device for injecting preheated air into shaft furnace |
| 11/13/1991 | CN1014720B Charging and distributing device at the top of a blast furnace |
| 11/05/1991 | CA1291642C Device for closing a top central opening of a vessel, and its applicationto a storage hopper in a shaft furnace charging installation |
| 10/30/1991 | EP0453739A1 Device for injecting preheated air into a shaft furnace |
| 10/30/1991 | CN1055763A Process for producing metals and metal alloys in smelt reduction vessel |
| 10/30/1991 | CN1014531B Handling molten materials |
| 10/23/1991 | EP0452624A1 Plumbline device to determine the height of charge in a shaftfurnace |
| 10/22/1991 | US5058864 Method of manufacture of pig iron using hollow tube to reseal tap role |
| 10/22/1991 | US5058534 Pipe wall of hot reaction chambers |
| 10/22/1991 | US5058288 Plumb bob device for determining the bed height of bulk material in a shaft furnace |
| 10/16/1991 | CN1055390A Technology for controlling dust-laden gas temp. in front of blast furnace cloth bag dust catcher and device thereof |
| 10/16/1991 | CN1055306A Blast furnace gas fully-dried type electric dust cleaning device and dust cleaning method |
| 10/16/1991 | CN1014327B Control method for lowering temp. of blast-furnace gas |
| 10/15/1991 | US5056968 Device for coupling a rod for drilling a taphole |
| 10/09/1991 | EP0451078A1 Sampler for blast furnace |
| 10/09/1991 | EP0451052A1 Improved construction for the burner or tuyere openings in furnaces and vertical reactors |
| 10/09/1991 | EP0450298A2 Probe for taking gaseous samples and making thermal measurements above the charging surface of a shaft furnace |
| 10/07/1991 | WO1991015604A1 Compositions and methods for synthesizing ladle slags, treating ladle slags, and coating refractory linings |
| 10/07/1991 | CA2079872A1 Compositions and methods for synthesizing ladle slags, treating ladle slags, and coating refractory linings |
| 10/04/1991 | CA2038977A1 Sampling probe, especially for blast furnaces |
| 10/01/1991 | US5053776 Device and method for the telemetric measurement of a distance and application to a radar probe for determining the topographic map of the loading surface of a shaft furnace |
| 10/01/1991 | US5053775 Device for determinging the profile of the loading surface of a shaft furnace |
| 09/19/1991 | WO1991014005A1 A process for producing metals and metal alloys in a smelt reduction vessel |
| 09/18/1991 | EP0446996A1 Method of manufacture of pig iron |
| 09/18/1991 | EP0446860A1 A process for producing metals and metal alloys in a smelt reduction vessel |
| 09/18/1991 | CN2084937U Tubular tuyere for small iron-smelting furnace |
| 09/18/1991 | CN1054663A Probe for taking gas samples and heat measu ments in shaft furnace |
| 09/18/1991 | CN1054662A Probe for taking gas samples and heat measurements above charing surface of shaft furnace |
| 09/18/1991 | CN1013959B Top feed distributor of blast furnace |
| 09/13/1991 | CA2037834A1 Method of manufacture of pig iron |
| 09/11/1991 | EP0445599A2 Probe for taking gaseous samples and making thermal measurements in a shaft furnace |
| 09/10/1991 | US5046908 Installation for charging a shaft furnace |
| 09/08/1991 | CA2037224A1 Probe for taking gas samples and heat measurements in a shaft furnace |
| 09/08/1991 | CA2037223A1 Probe for taking gas samples and heat measurements above the charging surface of a shaft furnace |
| 09/04/1991 | EP0445090A1 A flash removal device in a plant of production of mineral wool |
| 09/03/1991 | US5044398 Control valve for counterblow-tap hole-boring machine |
| 09/03/1991 | CA1288244C Installation for charging a shaft furnace |
| 09/03/1991 | CA1288243C Installation for charging a shaft furnace |
| 08/28/1991 | EP0443126A1 Apparatus for exchanging tuyere in shaft furnaces |
| 08/28/1991 | CN2083588U Constant pressure double room blast furnace wind inlet |
| 08/27/1991 | US5043735 Device for determining the topographic map of the loading surface of a shaft furnace |
| 08/21/1991 | CN2083153U Synchronous driving unit of hydraulic furnace top bell |
| 08/21/1991 | CN1053931A Checking system for measuring quantity of coal powder blowing through tuyeres of bleast furnace |
| 08/20/1991 | CA1287861C Device for the implantation of a parietal probe in a smelter-reducer oven |
| 08/13/1991 | US5039068 Machine for drilling tapholes of a shaft furnace |
| 07/31/1991 | CN1013356B Operating gear for measuring valve |
| 07/25/1991 | WO1991010872A1 Collecting pit for receiving molten metal |
| 07/23/1991 | CA1286522C Nosepiece stopper for probe end, probing process in a melter oven by means of a probe having said stopper, and device of use in said process |
| 07/16/1991 | US5031882 Channel structure for flow of molten pig iron |
| 07/03/1991 | CN1013041B Supporting framework for loading installation of shaft furnace |
| 07/02/1991 | CA1285392C Hot metal desulphurizing and dephosphorizing process |
| 06/18/1991 | US5024793 Mixing with pitch, coking and calcining, breaking into grains, binding, compacting and controlled firing |
| 06/11/1991 | US5022806 Apparatus for charging a shaft furnace |
| 06/05/1991 | EP0430740A1 Cooling plates for blast furnaces and cooling system utilizing such cooling plates |
| 06/05/1991 | CN1051939A Temp pick-up camera of material top surface in top of blast furance |
| 06/05/1991 | CN1012737B Method and equipment for water cooling and water seal of feed distributor of the blast furnace |
| 06/05/1991 | CN1012736B Process and apparatus for cooling loading installation of shaft furnace |
| 06/04/1991 | US5020992 Shaft furnace |
| 06/04/1991 | US5020780 Quick connect-disconnect coupling for blast furnace tap hole drill bit |
| 05/15/1991 | CA2029737A1 Cooling plates for blast furnace and refrigerating installation using these plates |
| 05/14/1991 | US5014965 Process and apparatus to clean a molten metal or slag conveyor trough |
| 05/08/1991 | EP0313620A4 Monitoring of objects in an optically dense atmosphere |
| 05/08/1991 | CN2076553U Flow regulator for blowing coal powder |
| 05/02/1991 | EP0303656B1 Tuyere stock for blast furnaces |
| 05/01/1991 | CN1012522B Roller-track device for rotary hopper |
| 04/23/1991 | US5009398 Device for reducing the stresses on a sealing shutter |
| 04/23/1991 | CA1283297C Device for injecting divided solids in a furnace, namely in a steel making blast furnace, and uses for said device |
| 04/19/1991 | CA2023752A1 Clay gun for a machine for plugging the tap-holes of a shaft furnace |
| 04/18/1991 | DE3933894A1 Appts. to prevent flue gas formation in metallurgical process |
| 04/10/1991 | EP0420851A1 Measurement of blast furnace raceway parameters. |
| 04/10/1991 | CN1050607A Device for determining topographic map of loading surface of shaft furnace |
| 04/09/1991 | US5005807 Extension bar for blast furnace tap hole drill |
| 04/04/1991 | DE3930729A1 Appts. to prevent flue gas formation in metallurgical process |
| 04/03/1991 | EP0420316A1 Taphole construction of a shaft furnace |
| 04/03/1991 | EP0296188B1 Process and device for introducing additives into a cupola or shaft furnace |
| 03/21/1991 | DE3929328A1 Appts. to prevent flue gas formation in metallurgical process |
| 03/19/1991 | US5000427 Injection material for use in blast furnace |
| 03/13/1991 | CN2072865U Atomizing spray gun with high pressure and reverse flow |
| 03/13/1991 | CN1011980B Feed hopper for loading installation of shaft furnace |
| 03/08/1991 | CA2024734A1 Device for determining the topographic map of the loading surface of a shaft furnace |
| 03/06/1991 | EP0415038A1 Tubewall for a heatreactionroom |
| 02/27/1991 | CN1011818B Device with hydrostatic transmission for feeding material |
| 02/26/1991 | CA1280622C Method and device for monitoring combustion in furnace |
| 02/20/1991 | CN1011705B Method and apparatus for correction of falling passageway of charging installation of shaft furnace |
| 02/19/1991 | US4993692 Unitary tundish linings with flow-control devices |
| 02/06/1991 | EP0411336A1 Cooling element for shaft furnace |
| 02/06/1991 | CN2070738U Air cooler for metallurgical blast furnace |