120 t顶底复吹转炉低磷钢冶炼工艺优化实践  

Optimization Practice of Melting Process for Low Phosphorus Steel in 120 t BOF

作　　者：陈铭雷 代波 Chen Minglei;Dai Bo(HBIS Group Wusteel Company)

机构地区：[1]河钢集团舞钢公司

出　　处：《宽厚板》2020年第3期31-33,44,共4页Wide and Heavy Plate

摘　　要：针对铁水成分波动所引起的脱磷效果不稳定问题,分析了吹炼终点倒炉倒渣操作、终点钢渣成分以及冶炼工艺制度对转炉脱磷效果的影响,并结合生产实践优化了转炉供氧、温度、枪位控制等工艺制度。实践结果表明:通过采用合理的脱磷工艺方案,解决了铁水成分不稳定带来的问题,满足了低磷钢的生产要求。For the problem of unstable dephosphorizing result caused by composition variation of hot metal,the paper analyses the effects of converting end-point tapping and deslagging operation on BOF dephosphorizing result,optimizes the process system of BOF oxygen supply,temperature and lance position on the basis of production practice.The results show that the problem caused by hot metal composition variation is resolved by rational dephosphorizing process solution,satisfying the production requirements of low phosphorus steel.

关 键 词：顶底复吹转炉 低磷钢 双渣法 

分 类 号：TF713[冶金工程—钢铁冶金]