| Patents for C21B 7 - Blast furnaces (8,339) |
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| 02/09/2000 | EP0978574A1 Compositions of cationic surfactants and their use as antifouling agents for induced draft fans (IDF) |
| 02/09/2000 | CN2362867Y All hydraulic taping hole opening machine for blast furnace |
| 02/09/2000 | CN1049281C Spray repairing machine for blast furnace and operation method thereof |
| 02/08/2000 | US6022593 Process for applying low-cement castable refractory material |
| 02/04/2000 | CA2279553A1 Cationic surfactants as antifouling agents for induced draft fans (idf) |
| 02/03/2000 | WO2000005421A1 Blast furnace with narrowed top section and method of using |
| 02/02/2000 | CN2361637Y Blast furnace distributing chute tilting mechanism capable of bearing multi-load |
| 02/02/2000 | CN1049046C Measuring method of powder flow in pipeline |
| 02/01/2000 | CA2204330C Dry process gunning of refractory castable |
| 01/27/2000 | WO2000004329A1 Camera insertion into a furnace |
| 01/27/2000 | CA2337244A1 Camera insertion into a furnace |
| 01/20/2000 | WO2000002668A1 High pressure/volume process for wet shotcreting a refractory castable |
| 01/20/2000 | CA2334468A1 High pressure/volume process for wet shotcreting a refractory castable |
| 01/19/2000 | EP0971797A1 Dry process gunning of refractory castable |
| 01/13/2000 | WO2000001853A1 Use of a fine-grained product produced during the production of titanium dioxide |
| 01/12/2000 | EP0970252A1 Tap hole drill |
| 01/05/2000 | EP0968152A1 Carbon-containing refractory tap hole clay composition |
| 01/05/2000 | CN1240160A Assembling deassembing machine for jogged member |
| 12/23/1999 | DE19838330A1 Verfahren und Anlage zur Stahlherstellung Method and apparatus for producing steel |
| 12/23/1999 | DE19827429A1 Push-pull apparatus for assembling and disassembling a tubular body that is to be fitted into a ring retainer on a wall member, for blast furnace |
| 12/22/1999 | EP0965026A1 Continuously operating liquid-cooled panel |
| 12/22/1999 | CN1239154A Complex diffused coal spray gun for blast furnace and its manufacture technology |
| 12/21/1999 | US6004626 High pressure/volume process for wet shotcreting a refractory castable |
| 12/21/1999 | US6004090 Charging device for a blast furnace |
| 12/15/1999 | EP0964066A1 Process and apparatus for eaf steelmaking using liquid pig iron from a mini blast furnace and less scrap |
| 12/15/1999 | EP0964064A1 Scaffold for blast furnace |
| 12/15/1999 | EP0963448A1 Method and device for measuring gas transfer time inside an enclosed space, particularly in a shaft furnace |
| 12/15/1999 | CN1238389A Blast furnace charging apparatus |
| 12/08/1999 | CN1237698A Carbon-bearing dust-collected collection blowing method and its equipment |
| 12/08/1999 | CN1237638A Monitoring system of coal powder injection state of coal powder injection branch pipe of blast furnace |
| 12/08/1999 | CN1047205C Method and device for detecting choke of coal-jetting branch pipe of blast furnace |
| 12/02/1999 | DE19824367A1 Blast furnace installation for production of pig iron |
| 12/02/1999 | DE19822984A1 Hochofengerüst Blast furnace scaffolding |
| 11/23/1999 | US5989488 For not overheating the temperature of copper of the outer suface of the tuyere to its melting point or higher so as to prevent tuyere failure and endure long-term use |
| 11/23/1999 | US5989408 Process for measuring an electrochemical activity |
| 11/17/1999 | EP0956368A1 Device for directly monitoring the charging process on the inside of a shaft furnace |
| 11/17/1999 | CN2349216Y Replaceable cooling wall for blast furnace |
| 11/17/1999 | CN1046552C Blast furnace top sluice feed distributing device driven by wirerope |
| 11/02/1999 | US5976632 Dry process gunning of refractory castable |
| 11/02/1999 | US5975754 Method for monitoring the wear and extending the life of blast furnace refractory lining |
| 10/27/1999 | EP0951570A1 Process for monitoring the operation of a device for feeding an abrasive medium by means of a fluid |
| 10/27/1999 | EP0951371A1 Method of producing a cooling plate for iron and steel-making furnaces |
| 10/26/1999 | US5971286 Method for the determination of the gas flux distribution in a blast furnace |
| 10/21/1999 | DE19816867A1 Hochofen Blast furnace |
| 10/20/1999 | EP0950722A1 Blast furnace cooling |
| 10/20/1999 | CN2344409Y Blast furnace throat firebrick and its equipment |
| 10/14/1999 | DE4027975C2 Vorrichtung zum Ermitteln der Topographie der Begichtungsoberfläche eines Schachtofens Apparatus for determining the topography of the loading surface of a shaft furnace |
| 10/12/1999 | US5965085 Having a unit for distributing a burden over the furnace cross section designed to provide a required stockline contour in the furnace throat zone with a highly uniform circumferential grain-size and weight distribution of the burden |
| 10/06/1999 | EP0946762A2 Process for reducing fume emissions during molten metal transfer |
| 10/06/1999 | CN2341994Y Stock rod changing device for blast furnace |
| 10/06/1999 | CN1230999A Process for monitoring operation of device for feeding abrasive medium by means of fluid |
| 10/05/1999 | US5961214 Determining protective layer thickness of blast furnaces |
| 09/29/1999 | CN2341103Y Coal powder sprayer for blast furnace |
| 09/23/1999 | WO1999047711A1 Wall structure for a metallurgical vessel and blast furnace provided with a wall structure of this nature |
| 09/22/1999 | CN2339586Y Moreable semi-tight-closed negative-pressure dust-arresting device on channel of blast furnace |
| 09/22/1999 | CN2339585Y Blast-furnace body cooling device |
| 09/22/1999 | CN2339584Y Cooling jacket for blast furnace |
| 09/15/1999 | EP0802834B1 Process for applying low-cement castable refractory material |
| 09/15/1999 | CN2338346Y Long duration and new type tuyere cover for blast furnace |
| 09/15/1999 | CN1228815A Runner for hot melt, runner system and method for conveying hot melt |
| 09/08/1999 | CN2337154Y Siphon automatic matte-discharging device |
| 09/01/1999 | CN2335973Y Differential joint rocker driving distributor |
| 08/31/1999 | US5944421 Method for determining the conditions of heat transfer in a blast furnace |
| 08/26/1999 | DE19806788A1 Cooling element for shaft furnaces, in particular, blast furnaces |
| 08/19/1999 | DE19903865A1 Tuyere for blast and cupola furnaces for production of iron and nonferrous metals |
| 08/17/1999 | US5938432 Top closing device for shaft furnaces |
| 08/11/1999 | CN2332730Y Blast furnace distribution appts. of ball-screw driving chute |
| 08/11/1999 | CN2332729Y Bunker with cylinder type valve |
| 08/11/1999 | CN2332728Y Assembling blast furnace tuyere |
| 08/11/1999 | CN2332727Y Construct assembly of blast furnace tuyere area |
| 08/11/1999 | CN1225395A Vertical furnace cooling element |
| 08/04/1999 | CN2331673Y Furnace thermal-storage stable-combustion device for blast-furnace gas boiler |
| 08/04/1999 | CN1225137A Tap hole drilling machine for blast furnace, drill bit for use in tap hole drilling machine, and tap hole drilling method |
| 08/04/1999 | CN1225136A Stave for cooling of blast furnace walls and method of manufacturing same |
| 08/04/1999 | CN1224829A Shaft furnace cooling plate |
| 08/04/1999 | CN1224764A Surface protecting layer for tuyere of blast furnace and its making process |
| 08/03/1999 | CA2110216C Process for cooling and cleaning gas, particularly blast furnace or producer gas, containing ultrafine particles, and apparatus for performing the same |
| 07/29/1999 | DE19830102C1 Chloride process titanium dioxide production waste fines are used to increase refractory lining durability |
| 07/27/1999 | US5928603 Device for sealing a lance in an opening for introduction of the lance into a container under pressure |
| 07/22/1999 | WO1999036580A1 Tapping launder for an iron smelt |
| 07/22/1999 | CA2318171A1 Tapping launder for an iron smelt |
| 07/21/1999 | EP0930476A1 Method for opening and closing a tapping hole of a metallurgical vessel and hammer device, especially for carrying out this method |
| 07/21/1999 | EP0930371A1 Stove cooler for shaft furnaces |
| 07/21/1999 | EP0688875B1 Tapping method of blast furnace |
| 07/20/1999 | US5925312 Push-pull apparatus adapted for assembling and disassembling a tubular body that is to be fitted into a ring retainer on a wall member |
| 07/20/1999 | US5924325 Lifting device, for example, for taphole drilling machines or splash cover manipulators |
| 07/14/1999 | CN1222579A Integral shift technology and equipment for overhaul of blast furnace |
| 07/14/1999 | CN1044134C Blast furnace gas temp. regulation system |
| 07/07/1999 | CN2327693Y Temperature sensor for luyer of blast furnace |
| 07/07/1999 | CN2327692Y Column style coller with cyclone |
| 07/07/1999 | CN1044007C Installation for charging shaft furnace |
| 07/07/1999 | CN1044006C Device for injecting preheated air into shaft furnace and process for mfg. ball-and-socket joints |
| 07/01/1999 | WO1999032665A1 Method and device for measuring gas transfer time inside an enclosed space, particularly in a shaft furnace |
| 06/30/1999 | EP0926248A1 Runner for guiding a flow of liquid metal |
| 06/30/1999 | EP0926247A1 Stave cooling member for metallurgical shaft furnace |
| 06/30/1999 | CN2326608Y High-temp. resistant middle-ladle nozzle cover |
| 06/29/1999 | US5916500 Method of lining a blast furnace |
| 06/29/1999 | CA2157390C Charge preheater |
| 06/23/1999 | CN2325400Y Optical fiber device for checking thinkness of burner lining of blast furnace |
| 06/23/1999 | CN2325399Y Crud gas regulation valve of iron blast furnace |