Change rule of top gas circulation in blast furnace gas injection process
LIU Song1，Lü Qing1，ZHANG Xu-sheng2，LIU Xiao-jie1，WANG Shu-huan1，LI Fu-min1
（1. College of Metallurgy and Energy， North China University of Science and Technlogy， Tangshan 063009， Hebei，China 2. Ironmaking Department， Hebei Iron and Steel Group Tangshan Iron and Steel Company， Tangshan 063009，Hebei， China）
Abstract：The new technology of blast furnace coal injection combines traditional technology of blast furnace with gas-making furnace and achieves a rational use of top gas through top gas recycling. The results show that with the increase of the cycle time，the amount of coal required increases，the content of H2 and CO in the gas-making furnace increases，and the total heat input and heat budget of blast furnace decrease. With the volume fraction of H2 and CO in the top gas increasing，the volume fraction of N2 and CO2 decreasing and the circulation of gas，the gas composition is basically unchanged，and the optimum running state of the blast furnace is guaranteed.
刘 颂，吕 庆，张旭升，刘小杰，王书恒，李福民. 高炉喷吹煤气工艺中炉顶煤气循环的变化规律[J]. , 2018, 53(2): 78-82.
LIU Song，Lü Qing，ZHANG Xu-sheng，LIU Xiao-jie，WANG Shu-huan，LI Fu-min. Change rule of top gas circulation in blast furnace gas injection process. Iron and Steel, 2018, 53(2): 78-82.
Nagata K, Ishii K, Yag J, et a1. Science and technology of innovative ironmaking for aiming at energy half consumption[C]. Tokyo, Japan: MEXT, 2003
[3]
Nagata K, Ishii K, Yag J, et a1. Science and technology of innovative ironmaking for aiming at energy half consumption[C]. Tokyo, Japan: MEXT, 2003
[4]
Tseitlin M A, Lazutkin S E, Styopin G M. A flow-chart for Ironmaking on the basis of 100% of usage of process oxygen and hot reducing gases injection [J]. ISIJ International, 1994, 34(7): 570-573
[4]
Tseitlin M A, Lazutkin S E, Styopin G M. A flow-chart for Ironmaking on the basis of 100% of usage of process oxygen and hot reducing gases injection [J]. ISIJ International, 1994, 34(7): 570-573
[5]
Mural R, Sato M and Ariyama T. Combustion behavior of solid fuel in innovative blast furnace with extra high efficiency and its process outline[A]．Science and Technology of Innovative Ironmaking for Aiming at Energy Half Consumption[C]．Tokyo，Japan：MEXT, 2003: 205-208
[5]
Mural R, Sato M and Ariyama T. Combustion behavior of solid fuel in innovative blast furnace with extra high efficiency and its process outline[A]．Science and Technology of Innovative Ironmaking for Aiming at Energy Half Consumption[C]．Tokyo，Japan：MEXT, 2003: 205-208
[6]
Nogami H, Yagi J I, Kiatmura S Y, et al. Analysis on material and energy balances of ironmaking systems on blast furnace operations with metallic charging, top gas recycling and natural gas injection[J]. ISIJ International, 2006, 46(12):1759-1766
[6]
Nogami H, Yagi J I, Kiatmura S Y, et al. Analysis on material and energy balances of ironmaking systems on blast furnace operations with metallic charging, top gas recycling and natural gas injection[J]. ISIJ International, 2006, 46(12):1759-1766
[7]
刘颖昊，刘涛. 基于LCA的高炉喷吹塑料节能减排研究[J].钢铁，2012，47(9)：79-83
[7]
刘颖昊，刘涛. 基于LCA的高炉喷吹塑料节能减排研究[J].钢铁，2012，47(9)：79-83
[8]
胡俊鸽，车玉满，周文涛．高炉喷吹炉顶煤气技术的进展[J]．炼铁，2010，29(5)：56-59.
[8]
胡俊鸽，车玉满，周文涛．高炉喷吹炉顶煤气技术的进展[J]．炼铁，2010，29(5)：56-59.
[9]
李福民．喷吹煤气高炉的炉料同化过程研究[D]．沈阳：东北大学，2009
[9]
李福民．喷吹煤气高炉的炉料同化过程研究[D]．沈阳：东北大学，2009
[10]
PUKHOW A.P., STELIN B.M., TSEITLIN M.A., et al. Introduction of blast furnace technology involving injection of hot reducting gas steel[J]. USSR, 1991, 21(8):333-338.
[10]
PUKHOW A.P., STELIN B.M., TSEITLIN M.A., et al. Introduction of blast furnace technology involving injection of hot reducting gas steel[J]. USSR, 1991, 21(8):333-338.
2018, Vol. 53 
