Abstract：The floating height of deadman in the hearth has a great significance on the hearth life. The design, operation and working state of blast furnace play a key role in the floating height of deadman. To clarify the influence law of blast furnace design, operation and working state on the floating height of deadman, the influence degree of relative important factors was quantitatively analyzed by establishing the force model of deadman, and taking a 5 000 m3 blast furnace in China as research object. The results show that the ratio of salamander depth to the hearth diameter increases by 1%, and the floating height of deadman increases by 0.155 m. The proportion of pellet raises by 10%, and the floating height of deadman decreases by 0.058 m. The ratio of ore to coke increases by 0.1, and the floating height of deadman decreases by 0.027 m. When the pressure drops increase by 10 kPa, the floating height of deadman rises by 0.29 m. The stock line rises by 0.1 m, the floating height of deadman increases by 0.018 m. The taphole depth increases by 0.1 m, the floating height of deadman decreases by 0.021 m. The taphole angle rises by 1 degree, the floating height of deadman decreases by 0.081 m. The results provide guidance and reference for the optimization design of the salamander depth and the regulation of deadman condition for blast furnace.
牛群, 邹忠平, 王刚, 赵运建. 高炉炉缸死料柱受力分析及影响因素[J]. 中国冶金, 2023, 33(2): 55-64.
NIU Qun, ZOU Zhong-ping, WANG Gang, ZHAO Yun-jian. Force analysis and influence factors of deadman in blast furnace hearth[J]. China Metallurgy, 2023, 33(2): 55-64.
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2023, Vol. 33 
