复吹转炉溅渣护炉水模试验研究

Study of hydraulic model experiment of lining protection with slag splashing in LBE

通过水力学模型试验 ,研究了影响复吹转炉溅渣护炉效果的因素 ,研究认为 ,为了取得良好的溅渣护炉效果 ,顶、底吹流量及顶枪枪位应有一良好的配合。马钢50t复吹转炉的最优化工艺参数为 :顶枪气体流量12000N /h ,枪位2000mm,留渣量9% ,底吹气体流量60～120N /h。

By means of hydraulic model, the factors influencing on the lining protection with slag splashing in LBE are studied. The flow rate of gas and distance of toped lance are good adaptation. The following optimization process parameters of 50 t LBE in Ma'anshan Iron &Steel Co. Ltd. are obtained: the flow rate of gas in toped lance is about 12 000 N/h , distance of toped lance is 2 000 mm, remnant slag quantity is 9%, the flow rate of bottom blowing gas is 60～120 N/h.