| Patents for C21B 5 - Making pig-iron in the blast furnace (3,135) |
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| 08/21/2013 | CN103255253A Side spraying type coal powder spraying gun |
| 08/21/2013 | CN103255248A Device for cyclic utilization of furnace burden |
| 08/21/2013 | CN103255247A Coal blending method for blast furnace coal injection |
| 08/21/2013 | CN102428193B Device for regulating the temperature of a gas in a hot gas main |
| 08/21/2013 | CN102177256B Blast furnace operating method using carbon-containing unfired pellets |
| 08/21/2013 | CN101486934B Mixing coal for blast furnace blowing |
| 08/20/2013 | US8512439 Method for feeding a burden to a blast furnace |
| 08/14/2013 | EP2626439A1 Method for separating blast furnace gas |
| 08/14/2013 | CN203128603U Compressive coal gas continuous analysis system of blast furnace |
| 08/14/2013 | CN203128598U Iron-making slag heat utilization device of blast furnace |
| 08/14/2013 | CN103249464A Method and device for producing a fluid enriched with carbon dioxide from a waste gas of a ferrous-metallurgy unit |
| 08/14/2013 | CN102443663B Weighing control method of coke under bunker of blast furnace without dispersing hopper |
| 08/07/2013 | CN103237904A Method and apparatus for coproduction of pig iron and high quality syngas |
| 08/07/2013 | CN103233086A Mutual pulverized coal injection pipeline for iron-making blast furnace |
| 07/31/2013 | CN203096094U Blast furnace top pressure safety control system |
| 07/31/2013 | CN203096092U Blast furnace belt feeding control system |
| 07/31/2013 | CN103225951A Equipment for smelting steel and iron by pulverized coal as fuel |
| 07/31/2013 | CN103225005A System and method for TRT power generation by blast furnace slag washing water heat source |
| 07/31/2013 | CN102690916B Real-time monitoring system and method of CO2 discharging amount of blast furnace |
| 07/30/2013 | US8496730 System and method for reducing iron oxide to metallic iron using coke oven gas and oxygen steelmaking furnace gas |
| 07/25/2013 | WO2013107417A1 Cavity-type blast furnace iron-smelting apparatus and iron-smelting method |
| 07/24/2013 | CN203079987U Anti-reversal locking device of coal injecting gun |
| 07/24/2013 | CN103221554A Method for increasing the penetration depth of an oxygen stream |
| 07/24/2013 | CN103215394A Selection method suitable for blast furnace blowing and coal blending scheme |
| 07/24/2013 | CN102286650B Gas diffusing method for blast furnace gas diffusing tower |
| 07/17/2013 | CN203065495U Blast furnace gas combustion control device |
| 07/17/2013 | CN203065494U Blast furnace dust injection utilizing device |
| 07/17/2013 | CN103205515A System and method for injecting coke oven gas into blast furnace |
| 07/17/2013 | CN103205514A Method for smelting qualified pig iron from low-grade dilution ores containing high quantities of harmful elements |
| 07/10/2013 | CN103194554A Simple raw coal drying process for blast furnace coal injection |
| 07/10/2013 | CN103194553A Oxygen usage amount control method for steel smelting blast furnace based on least square support vector machine |
| 07/10/2013 | CN103194551A Blast furnace ironmaking slag heat utilizing device |
| 07/10/2013 | CN102443694B Sintering method of high-chromium and high-vanadium schreyerite |
| 07/10/2013 | CN102010919B Process for blasting oxygen-enriched hot blast to blast furnace and device applied to same |
| 07/10/2013 | CN101654634B Coke passivating agent |
| 07/09/2013 | CA2516491C A non-corrosive treatment to enhance pressurized and non-pressurized pulverized coal combustion |
| 07/03/2013 | EP2609223A2 Method for increasing the penetration depth of an oxygen stream |
| 07/03/2013 | CN203034039U Automatic control device for sounding rod of blast furnace |
| 07/03/2013 | CN203034032U Nitrogen sprayer |
| 07/03/2013 | CN203034031U Intelligent water temperature control equipment for iron making blast furnace |
| 06/27/2013 | WO2013094230A1 Blast furnace operation method |
| 06/27/2013 | WO2013094229A1 Blast furnace operation method |
| 06/27/2013 | US20130160607 Method for producing pressed articles containing coal particles |
| 06/26/2013 | CN103175414A Stroke control device for skip car or gauge rod and operating method thereof |
| 06/26/2013 | CN103173584A Blast furnace burden-distribution control system with self-learning control function |
| 06/26/2013 | CN102534075B Blast-furnace gas pressure regulating process |
| 06/20/2013 | WO2013088583A1 Process for manufacturing iron-source raw material to be fed into blast furnace |
| 06/20/2013 | WO2013087838A1 Cold wind generation from slag heat |
| 06/20/2013 | DE102011121507A1 Verfahren zur carbothermischen oder elektrothermischen Herstellung von Roheisen oder Basisprodukten A process for the carbothermic or electrothermal production of pig iron or basic products |
| 06/19/2013 | CN203007354U 400-series stainless steel settled dust comprehensive utilization system |
| 06/19/2013 | CN203007291U Overpressure bleeding system for blast furnace gas dry dust removal purification device |
| 06/19/2013 | CN203007284U Safety control system of blast furnace |
| 06/19/2013 | CN103160629A Method for prediction of blast furnace heat tendency |
| 06/19/2013 | CN102392086B Large blast furnace body gas leakage prevention method |
| 06/13/2013 | WO2013082659A1 Starting a smelting process |
| 06/13/2013 | WO2013082658A1 Starting a smelting process |
| 06/13/2013 | WO2013082653A1 Starting a smelting process |
| 06/13/2013 | CA2858176A1 Starting a smelting process |
| 06/13/2013 | CA2857684A1 Starting a smelting process |
| 06/13/2013 | CA2857681A1 Starting a smelting process |
| 06/12/2013 | EP2601318A1 Aggregate containing coke and titanium and use thereof to repair the lining of metallurgical vessels |
| 06/12/2013 | CN202989183U Blast furnace pulverized coal injection device |
| 06/12/2013 | CN103146860A Fully-automatic detection control method for granularities of blast furnace fed burdens |
| 06/12/2013 | CN102230042B Control method for preventing blockage of coal injection branch pipes of distributor in blast furnace coal injection system |
| 06/12/2013 | CN102220444B Anti-blocking control system for coal spray branch pipes of distributor of coal spray system of blast furnace |
| 06/05/2013 | CN202968583U Dust removal device for automatically controlling ash transportation |
| 06/05/2013 | CN202968572U Improved energy-saving control pipe system for TRT (blast furnace top gas recovery turbine unit) |
| 06/05/2013 | CN103131808A Spray gun burner and loading and unloading method thereof |
| 06/05/2013 | CN103131806A Blast furnace slag flushing water and blast furnace blast dehumidification waste heat recovery energy saving system and method thereof |
| 06/05/2013 | CN102399922B Blast furnace iron making method |
| 06/05/2013 | CN101875987B Method for smelting low chromium pig iron by utilizing chromium slag |
| 05/29/2013 | CN103122407A Direct blast furnace innocent treatment method of chromic slag pressure block |
| 05/29/2013 | CN103122400A Blast furnace gas dust removal device |
| 05/29/2013 | CN103122398A Smoke self-circulation preheating coal dust injection technology and device |
| 05/29/2013 | CN101978235B Method and apparatus for separating blast furnace gas |
| 05/29/2013 | CN101349688B Multifunctional general-purpose coal fines combustion test apparatus and method |
| 05/22/2013 | CN202945295U Device for improving thermal explosion property of iron ore |
| 05/22/2013 | CN202945253U Device for recovering constant-pressure gas discharged on top of blast furnace |
| 05/22/2013 | CN202945252U Prefabricated optimal control system of blast furnace for saving coke |
| 05/22/2013 | CN103114165A Blast furnace gas sampling and temperature measuring device |
| 05/22/2013 | CN103114164A Method for observing deformation of blast furnace |
| 05/22/2013 | CN101796200B Process for manufacturing molded products of direct-reduced iron and process for manufacturing pig iron |
| 05/21/2013 | CA2519229C Process for producing reduced metal and agglomerate with carbonaceous material incorporated therein |
| 05/15/2013 | CN103103347A Method for preparing blast furnace ironmaking burden from full-vanadium titanium magnetite concentrate |
| 05/15/2013 | CN103103304A Device and method capable of realizing belt pressing washing |
| 05/08/2013 | CN202928377U Sintering waste heat and blast furnace gas overbottom pressure integration recovery process system |
| 05/08/2013 | CN103088173A Blast furnace coal injection device, and mounting and operating methods thereof |
| 05/08/2013 | CN103086162A Temporary online transportation platform supporting structure and using method thereof |
| 05/01/2013 | CN202912990U Hot blast stove system |
| 05/01/2013 | CN202912987U U-shaped water seal pressure equalizing gas recovery device utilizing blast furnace return water |
| 05/01/2013 | CN202912975U Process unit for jetting coke oven gas to blast furnace |
| 05/01/2013 | CN202912974U Pressure-equalizing coal gas recovery device for furnace roof of blast furnace |
| 05/01/2013 | CN103075208A Method for reducing vibration in start-up process of blast furnace top gas recovery turbine unit |
| 05/01/2013 | CN103074456A Method for recycling iron from waste red mud in alumina production |
| 05/01/2013 | CN102174663B Blast-furnace coal injection pulverization flue gas system and control method thereof |
| 04/25/2013 | WO2013056870A1 Method of operating regenerative heaters in blast furnace plant |
| 04/25/2013 | WO2012025321A3 Method for increasing the penetration depth of an oxygen stream |
| 04/25/2013 | CA2851749A1 Method of operating regenerative heaters in blast furnace plant |
| 04/24/2013 | EP2584052A1 Method of operating regenerative heaters in blast furnace plant |
| 04/24/2013 | CN202904393U Emission gas control system |