转炉“留渣双渣”炼钢工艺  

Steelmaking process of remaining slag-double slag operation in converter

作　　者：姚同路[1] 贺庆[1] 王乐[1] 孟华栋[1] 赵军普[1] YAO Tonglu HE Qing WANG Le MENG Huadong ZHAO Junpu(Metallurgical Process Department, Central Iron and Steel Research Institute, Beijing 100081, China)

机构地区：[1]钢铁研究总院冶金工艺研究所,北京100081

出　　处：《钢铁研究》2017年第1期33-38,共6页Research on Iron and Steel

摘　　要：在某钢厂120 t转炉采取"留渣双渣"新工艺进行试验生产,对生产数据进行分析,并与常规原工艺进行对比,结果表明:在铁水w(P)为0.12%条件下,新工艺TSC时刻w(C)为0.45%,w(P)为0.023%,脱磷率为81.45%,高于原工艺的78.86%;冶炼终点钢水中w(C)为0.12%,w(P)为0.013%,脱磷率为89.52%,与原工艺相当。表观金属料消耗降低5 kg/t,但冶炼周期延长约5 min。The remaining slag-double slag operation was adopted to carry out practical industrial experiment in 120 t converter in a steel-making plant. The production data were analyzed and compared with the data obtained from the original remaining slag-single slag process. The results showed that when w（P） in hot metal was 0. 12 %,w（C） at TSC time of the new process was 0. 45 % and w（P） could be reduced to0. 023 %. The dephosphorization rate was 81. 45 % which was higher than the dephosphorization rate of the original process 78. 86 %. w（C） in the molten steel at the smelting endpoint was 0. 12 % and w（P）could be reduced to 0. 013 %. The dephosphorization rate was 89. 52 % which was close to the dephosphorization rate of the original process. The apparent metal material consumption was reduced by5 kg/t,but the production cycle was prolonged by about 5 minutes.

关 键 词：留渣双渣 脱磷率 金属料消耗 

分 类 号：TF713[冶金工程—钢铁冶金]