| Patents for C21B 5 - Making pig-iron in the blast furnace (3,135) |
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| 04/24/2013 | CN103060546A Direct utilization transformation method of converter sludge |
| 04/24/2013 | CN103060500A Blast furnace top pressure equalizing and releasing process and device with pressure equalized goal gas recycling function |
| 04/17/2013 | CN103045781A Blast furnace gas dust injection utilizing process and device |
| 04/17/2013 | CN103045780A Method for measuring coke reactivity index and strength after reaction of tuyere coke |
| 04/10/2013 | EP2577200A1 Tuyere stock arrangement of a blast furnace |
| 04/10/2013 | CN103031397A On-line detection model for furnace temperature of blast furnace |
| 04/10/2013 | CN103031395A Method for determining damaged conditions of refractory lining of high-air temperature hot air furnace on line |
| 04/10/2013 | CN103031394A Proportioning method for lower part of blast furnace |
| 04/10/2013 | CN103031393A Method for lowering production cost of blast furnace by changing raw ore type and relative proportion |
| 04/10/2013 | CN102206744B Method for granulating sinter mixture |
| 04/10/2013 | CN102206718B Furnace charge for vanadium-titanium magnetite blast furnace smelting, and blast furnace smelting method |
| 04/10/2013 | CN101531940B Method for manufacturing raw material coal for manufacturing coke, method for manufacturing coke and pig iron |
| 04/04/2013 | WO2013045654A1 Ironmaking process and installation |
| 04/03/2013 | EP2574683A1 Ironmaking process and installation |
| 04/03/2013 | CN202851486U Furnace top feeding hydraulic system |
| 04/03/2013 | CN202849462U Blast furnace coal injection system |
| 04/03/2013 | CN202849451U Cushioning protection apparatus for pressure equalizing relief valve |
| 04/03/2013 | CN202849450U Power generation system capable of recycling excess pressure and waste heat of blast furnace gas |
| 04/03/2013 | CN103014323A Sintering method for high-grade vanadium titanium iron ore concentrate |
| 04/03/2013 | CN103014210A Top distribution device and distribution method for blast furnace |
| 04/03/2013 | CN103014206A Blast furnace batching method based on final slag alkalinity |
| 04/03/2013 | CN103014205A Method for supplying oxygen to blast furnace oxygen-enriched coal spray |
| 04/03/2013 | CN103014204A Blast furnace burden distribution optimization method based on mode recognition and expert system as well as system |
| 04/03/2013 | CN103013616A Catalytic combustion improver for blast furnace coal injection and application method thereof |
| 04/03/2013 | CN102344845B Environment-friendly blast furnace coal injection combustion improver and addition method |
| 04/03/2013 | CN101962695B Control method of intelligent supplying system of crude fuel on blast furnace groove |
| 03/27/2013 | CN102994740A Method for preparing carbon-containing pellet for blast furnace |
| 03/27/2013 | CN102994673A Process method for pressing-in management of temperature rising of side wall of blast furnace hearth |
| 03/27/2013 | CN102994672A Automatic control method for top pressure of TRT (blast furnace top gas recovery turbine unit) system |
| 03/27/2013 | CN102994671A Quantitative recovery method for long-term blowing-down of blast furnace |
| 03/27/2013 | CN102994670A Burden distribution method of blast furnace |
| 03/20/2013 | CN202813978U Improved smoke furnace used for blast furnace coal injection |
| 03/20/2013 | CN202808849U Hot-blast stove using blast furnace gas as fuel |
| 03/20/2013 | CN202808834U Power generating and steam-driven air supply system for recovering excessive pressure and afterheat energy from blast-furnace gas |
| 03/20/2013 | CN102985567A Method and device for regulating the temperature of process gases from plants for raw iron production for use in an expansion turbine |
| 03/20/2013 | CN102982218A Method for acquiring material flow characteristic at throttling valve on furnace top of blast furnace |
| 03/20/2013 | CN102978386A Combined preparation method for carbon-containing pellet used for blast furnace |
| 03/20/2013 | CN102978385A Carbon-containing pellet for blast furnace |
| 03/20/2013 | CN102978384A Method for using steel slags during sintering |
| 03/20/2013 | CN102978313A Sinter feeding system and method for improving burden distribution of blast furnace |
| 03/20/2013 | CN102978312A Blast furnace smelting process used for high-vanadium-titanium low-MgO furnace slag |
| 03/20/2013 | CN102978311A Control method for blast furnace closed-loop distributing system |
| 03/20/2013 | CN102978310A Coal powder injection method for blast furnace |
| 03/20/2013 | CN102978309A Blast-furnace quantitative shutdown method |
| 03/20/2013 | CN102978308A Energy-saving oxygen-enriching method for blast furnace iron making |
| 03/20/2013 | CN102978307A Process for reducing production of pipeline steel |
| 03/20/2013 | CN102978306A Low-cost iron-making method capable of reducing reaction temperature in furnace |
| 03/20/2013 | CN102037304B Method for feeding pulverised coal into a blast furnace |
| 03/20/2013 | CN101978078B Method of separating blast furnace gas |
| 03/20/2013 | CN101870898B Special pressed carbon block for blast-furnace ironmaking as well as manufacturing and using methods thereof |
| 03/14/2013 | DE102011112909A1 Verfahren und Vorrichtung zur Gewinnung von Stahl Method and apparatus for the production of steel |
| 03/13/2013 | CN202786284U Crude fuel hot charging, full-hot oxygen blast furnace and shaft furnace joint production system |
| 03/13/2013 | CN202786281U Material unloading and preparation control system for blast furnace trough |
| 03/13/2013 | CN202786280U Full-hot-oxygen blast furnace/shaft furnace combined production system |
| 03/13/2013 | CN102965459A Distributing system and method for improving multi-ring burden distribution surface segregation and heap top of blast furnace |
| 03/13/2013 | CN102417940B Defoaming and slagging heat insulation agent for blast furnace ironmaking and preparation method thereof |
| 03/13/2013 | CN102230041B Method for debugging oxygen-rich gas adjustment system and putting it into operation |
| 03/07/2013 | WO2012175368A3 Carbon dioxide reduction in steelworks |
| 03/06/2013 | EP2563940A1 Method for producing raw iron or liquid steel precursors |
| 03/06/2013 | CN102952913A Dual-preheating method and device for preheating blast furnace gas by using heat-storage-type preheating furnace |
| 03/06/2013 | CN102952912A Blast furnace smelting method and system based on expert system and knowledge base |
| 03/06/2013 | CN102952911A Process device for blowing coke oven gas of blast furnace |
| 03/06/2013 | CN102952910A Calculation method of energy utilization after addition of high-reactivity coke into blast furnace |
| 02/27/2013 | CN102942967A Blast furnace gas preprocessing method and device |
| 02/27/2013 | CN102399978B Manufacture method of iron ore MgO pellet ore |
| 02/27/2013 | CN102220440B Vanadium-titanium magnetite blast furnace smelting method capable of improving vanadium yield |
| 02/20/2013 | CN202744570U Material seed priority matrix blast furnace batching system |
| 02/20/2013 | CN102936633A Blast furnace coal injection method adopting coke oven coal gas as coal injection conveying carrier |
| 02/20/2013 | CN101680042B Method for manufacturing molten iron comprising nickel |
| 02/14/2013 | WO2013022372A1 Blast-furnace smelting method |
| 02/13/2013 | CN102925672A Method for evaluating economic value of iron ore by using cost of separately calcining molten iron |
| 02/13/2013 | CN102925603A Process and device for recycling pressure-equalizing diffusion gas at blast furnace top |
| 02/13/2013 | CN102925602A Furnace profile maintenance method for blast furnace operation |
| 02/13/2013 | CN102925601A Method for evaluating high-temperature softening-melting dropping properties of iron-bearing burden |
| 02/13/2013 | CN102424871B Iron cinder and skimmer separation method during reblowing process after blast furnace long-term blowing-down |
| 02/13/2013 | CN101914644B Blast furnace feeding material alkali metal fusion loading device and method thereof |
| 02/06/2013 | CN202717784U Pulverized coal spray gun for coal injection of blast furnace |
| 02/06/2013 | CN102918346A Tuyere stock arrangement of a blast furnace |
| 02/06/2013 | CN102912049A Method for canceling center coke charging of blast furnace |
| 02/06/2013 | CN102912048A Method and device for improving reduction efficiency of furnace stack by using high-reactivity coke |
| 02/06/2013 | CN102912047A Optimal selection method capable of increasing yield of blast furnace |
| 02/06/2013 | CN102286649B Water spraying gun for lowering stock line of blast furnace |
| 01/30/2013 | CN202705382U Pulverized coal injection device for blast-furnace tuyere |
| 01/30/2013 | CN102899481A Calcium-magnesium sintering additive and production process flows thereof |
| 01/30/2013 | CN102899431A Method for quantitatively recovering abnormal furnace condition of blast furnace |
| 01/30/2013 | CN102899430A Multipoint stereoscopic ignition device and method for blast furnace blow-in and blast furnace containing the device |
| 01/30/2013 | CN102899429A Blast furnace smelting raw material modifier |
| 01/24/2013 | WO2013011662A1 Blast furnace operating method |
| 01/24/2013 | WO2013011661A1 Blast furnace operating method |
| 01/24/2013 | DE112010005234T5 Energierückgewinnung aus Gasen in einer Hochofenanlage Energy recovery from gases in a blast furnace |
| 01/23/2013 | CN202688351U Trolley device for reversely blowing pulverized coal |
| 01/23/2013 | CN202688338U Pulverized-coal fluidization device for coal injection of blast furnace |
| 01/23/2013 | CN102888479A Automatic control system for changing combustion rhythm of hot blast furnace along with blast temperature of high furnace |
| 01/23/2013 | CN102888477A Top even pressure gas recovery device and technology for blast furnace and technology |
| 01/23/2013 | CN102888476A Blast furnace coal injection method by using blast furnace gas as coal injection delivery carrier |
| 01/23/2013 | CN102888475A Full-oxygen humidifying and blasting device and technology for blast furnace |
| 01/23/2013 | CN102888474A Method for controlling aluminum oxide in first furnace blow-in slag of blast furnace |
| 01/23/2013 | CN102230040B Ironmaking method |
| 01/23/2013 | CN101627275B Solids distributor for injection plants, blast furnaces and the like |
| 01/22/2013 | US8357224 Method of iron smelting in blast furnace with high temperature coal Gas |