承钢120t半钢炼钢转炉底吹工艺优化  

OPTIMIZATION OF BOTTOM-BLOWN PROCESS OF 120-ton CONVERTER FOR SEMI STEEL MAKING

作　　者：段喜海 孙福振 梁新维 杨坤 滕广义 

机构地区：[1]河北钢铁集团承钢公司长材事业二部,河北承德067002

出　　处：《河北冶金》2015年第10期41-43,共3页Hebei Metallurgy

摘　　要：针对承钢120 t复吹转炉底吹流量低、底吹砖寿命短、复吹率偏低等问题,采用快换底吹工艺,优化底吹流量。根据钢种终点碳含量与碳氧积参数,建立动态模型,实现底吹流量的动态控制,有效降低了渣中氧化铁含量、终点碳氧积,改善了底吹的冶金效果,提高了钢水质量。To solve the problems of 120 t top and bottom combined blown converter in Cheng Steel： short work life of bottom- blown brick,lowcombined blown rate,the fast- exchanging bottom- blown process is adopted to optimize bottom- blown flowamount. According to end- point carbon content and carbon-oxygen product of steel grades,a dynamic model is built,and then the dynamic control of bottom- blown flowis realized,the ferric oxidant content in slag and product of carbon content and oxygen content at blown end- point are effectively reduced,the metallurgical effect of bottom blown improved,the quality of molten steel improved.

关 键 词：转炉 底吹流量 底吹工艺 碳氧积 优化 

分 类 号：TF715[冶金工程—钢铁冶金]