攀钢低硫管线钢硫含量控制生产实践  

Practice of Sulfur Content Control During the Smelting of Low Sulfur Pipeline Steel in Panzhihua Steel

作　　者：张强 袁宏伟 杨森祥 李清春 陈靓 

机构地区：[1]攀钢集团攀枝花钢钒公司提钒炼钢厂,四川攀枝花617000

出　　处：《钢铁》2013年第11期32-36,47,共6页Iron and Steel

摘　　要：攀钢提钒炼钢厂采用w（[S]）为0.06％～0.12％的铁水炼钢,导致低硫钢的生产困难较大,结合攀钢X52NS,L245NCS等低硫钢冶炼的生产实践,分析了“铁水脱硫预处理—转炉—LF钢包精炼—连铸”全流程各工艺环节的硫含量控制技术.通过铁水脱硫预处理后将w（[S]）控制在0.003％以下,转炉冶炼工位采用含硫较低的辅料造渣以及LF工位控制钢水[O]活度等措施,生产出了w（[S]）最低为0.002％的低硫钢.The hot metal with 0.06 %-0.12% of w（[S]） was used for steelmaking at Pangang Extraction Vanadium and Steelmaking Plant. It＇s difficult to product low sulfur steel. According with the practicing of the low sulfur steel of X52NS and L245NCS etc in Pangang, the sulfur content controlling technology was analyzed for the whole flow process including hot metal desulphurization pretreatment, converter ladle refining and continuous casting. Through controlling sulphur under 0. 003 % after the hot metal desulphurization pretreatment and using sulfur lower accessories slag in converter smelting station and molten steel LF station control [O] activity etc, Pangang Extraction Vanadium and Steelmaking Plant can produce the mass fraction of sulfur for 0. 002% low sulfur steel.

关 键 词：铁水脱硫预处理 炼钢 低硫钢 

分 类 号：TF703[冶金工程—钢铁冶金]