转炉含铝镇静钢直供工艺研究  

STUDY ON DIRECT SUPPLY PROCESS OF CONVERTER AL-KILLED STEEL

作　　者：赵艳 王勃超 尹宽 刘占礼 Zhao Yan;Wang Bochao;Yin Kuan;Liu Zhanli(Tangshan Stainless Steel Company of HBIS Group,Tangshan,Hebei,063016)

机构地区：[1]河钢集团唐山不锈钢公司,河北唐山063016

出　　处：《河北冶金》2018年第9期49-51,共3页Hebei Metallurgy

摘　　要：针对低碳铝镇静钢转炉—LF精炼炉—连铸工艺路线能耗大、钢包耐材侵蚀严重、合金消耗高等问题,结合低碳铝镇静钢种成分及质量控制要求,设计开发了一种避免钢水增硅,脱氧夹杂物吸附去除效果好,高效脱硫的精炼渣。同时通过调整连铸氩气控制、全氧控制等方法,解决了连浇技术难题。实现了采用铁水扒渣—转炉—炉后吹氩—连铸工艺稳定生产低碳铝镇静钢的目标,在保证质量前提下降低了炼钢成本。对低碳铝镇静钢冶炼工艺技术进步具有很好地借鉴作用。In view of the problems of high energy consumption,serious corrosion of ladle refractory and high alloy consumption in converter-LF refining-continuous casting process of low carbon Al killed steel,a new kind of refining slag was developed to avoid silicon addition in molten steel,remove oxygen inclusions effectively and achieve high efficiency desulphurization. At the same time,the continuous casting technology problem is solved through adjusting the continuous casting argon control and total oxygen control method.The goal of stable production of low carbon Al killed steel by molten iron slag-converter-argon blowing after converter-continuous casting process was achieved,and the cost of steelmaking was reduced on the premise of quality assurance. It has a good reference for the process progress of smelting low carbon Al killed steel.

关 键 词：低碳铝镇静钢 精炼渣 快速脱硫 吹氩直供 

分 类 号：TF703.5[冶金工程—钢铁冶金]