Abstract：Aiming at the problem of high fuel consumption in Ansteel No.4 BF,the ternary basicity is established, and the differential distribution method is adopted for the rational charging, implementing a central oriented and moderately loose edge distribution mode to improve the reduction effect of furnace burden. The lower adjustment focuses on controlling the air flow, adopting a pressure matching mode to operate the blast furnace, and optimizing the calculation of the blast kinetic energy and the area of past tuyere to obtain an appropriate raceway of the swing zone to activate the hearth. At the same time, different measures such as reasonable control of slag skin thickness, soft melting zone form and slag basicity are adopted. On the basis of controlling a reasonable operation of furnace typere, different visualization methods are applied and data platforms are constructed. It strengthens the monitoring of the running state of BF to a great extent and achieves a good effect of increasing daily output by 476 t/d and decreasing fuel consumption by more than 20 kg/t. It also realizes the purpose of increasing production and increasing efficiency of No.4 BF.
张立国, 范振夫, 刘宝奎, 邵思维. 鞍钢新4号高炉优化生产实践[J]. 中国冶金, 2020, 30(5): 65-69.
ZHANG Li-guo, FAN Zhen-fu, LIU Bao-kui, SHAO Si-wei. Optimization practice of Ansteel new No.4 blast furnace[J]. China Metallurgy, 2020, 30(5): 65-69.
2020, Vol. 30 
