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%。 Based on the industrial tests, the steel composition, slag-like composition and slag facies of the 210 t BOF converter were analyzed. The slagging process and dephosphorization status of the two slagging processes (Scheme A and Scheme B) were studied. The results of industrial tests comparing two kinds of slagging processes show that the slagging process scheme B with higher gun positions is better than that of scheme A. The slag slagging speed at the early stage of converter smelting is high and the rate of dephosphorization before and after smelting is 12.6% Slag flow better; into the slag line more stable; program B than the program A lime consumption less 11.5 kg / t, Lp 5.42 high, average converter dephosphorization rate of 2.7%.