摘要
通过工业试验对迁钢210 t复吹转炉冶炼过程钢样成分、渣样成分和炉渣岩相进行分析,研究了两种造渣工艺(方案A和方案B)的成渣过程及脱磷状况。对比两种造渣工艺的工业试验效果表明高枪位的造渣工艺方案B优于方案A;转炉冶炼前期化渣速度快,冶炼前、中期脱磷率高12.6%;高熔点矿相少,炉渣流动性较好;成渣路线更加平稳;方案B较方案A石灰消耗少11.5 kg/t,Lp高5.42,转炉平均脱磷率高2.7%。
By analyzing the composition of liquid steel and the composition and petrographical characteristics of slag,the variation of slag composition during oxygen blowing,and the slagging processes and dephosphorization with the two slagging methods（scheme A and B） applied to the 210 t combined blowing BOF were investigated.A comparison between test results of the two slagging methods showed that scheme B was better than scheme A： first,the slag melted more rapidly at early smelting stage and the dephosphorization rate at early and medium smelting stages was 12.6% higher;second,the slag fluidity was better and mineral phase with high melting point was found less;third,the slag composition fluctuated more smoothly;fourth,the consumption of lime decreased by 11.5 kg/t,the Lp increased by 5.42,and the average dephosphorization rate of BOF increased by 2.7%.
出处
《钢铁钒钛》
CAS
北大核心
2012年第4期47-50,共4页
Iron Steel Vanadium Titanium
关键词
复吹转炉
造渣
岩相
成渣路线
BOF； slagging； petrographical characteristics； slagging path
