承钢含钒铁水预脱硫处理工艺优化  

Optimization of Desulphurization Pretreatment for Vanadium Bearing Hot Metal in Chengsteel

作　　者：王宝华[1] 孔超[1] 康毅[1] 

机构地区：[1]河北钢铁股份有限公司承德分公司,河北承德067002

出　　处：《中国冶金》2011年第6期38-42,共5页China Metallurgy

摘　　要：承钢含钒铁水在单喷镁脱硫预处理时,脱硫渣较稀,不宜扒除,易回硫。针对其特殊的铁水条件,结合生产实践,通过对主吹流量和给料速度进行优化,平均脱硫率提高了12.38%,堵枪现象得到有效减少;通过在出铁前预先加入适量的钙基脱硫剂,钝化镁利用率提高了8.66%,脱硫渣况得到改善,扒渣效果增强,平均回硫减少0.006%,并且不会影响钒渣质量。Desulphurization slag is fugitive and difficult to be removed,and resulfurization is easy to happen in the magnesium-spraying desulphurization pretreatment of vanadium bearing hot metal in chengsteel.According to special hot metal,the desulphurization rate can improve by 12.38% with optimization of major blowing flow and feeding speed,and probability of lance plugging gets small.After appropriate calcium-based desulphurization agent added before tapping,passivated magnesium utilizing rate increased by 8.66%.The result of slag skimming enhanced and the average resulphurization rate reduced by 0.006%,also the quality of vanadium slag did not be influenced.

关 键 词：提钒 脱硫 回硫 聚渣剂 

分 类 号：TF704.3[冶金工程—钢铁冶金]