摘要
河钢集团承钢公司通过优化进站钢水温度控制、吹氩控制、造渣控制,使得LF进站钢水平均温度从1 552℃提高到1 573℃,转炉下渣量由60mm降至45mm,精炼脱硫时钢水搅拌能在9 000W/t左右,进站钢水炉渣平均w(FeO)达到1.04%,精炼过程w(FeO)控制在0.5%左右,炉渣碱度达到2.9～3.2,平均一次脱硫率从59.87%提高到到85.54%,炉均精炼周期从58.3min缩短到47.9min,加快了生产节奏,降低了生产成本。
By optimizing the temperature control of LF inlet molten steel,argon blowing control and slagging control,the average temperature of LF inlet molten steel increased from 1552℃ to 1573 ℃,the roughing slag amount decreased from 60mm to 45mm,the stirring energy of molten steel was about 9000W/t in LF desulphurization,the average w (FeO)of LF inlet steel slag reached 1.04%,and was about 0.5%in refining process.The basicity of refining slag reached 2.9-3.2, the average first desulfurization rate increased from 59.87%to 85.54%,and the refining cycle shortened from 58.3min to 47.9min.The production rhythm was accelerated and the production cost was reduced.
作者
朱学谨
ZHU Xuejin(Department of Production Planning,HBIS Chengsteel,Chengde 067000,China)
出处
《炼钢》
CAS
北大核心
2018年第6期11-14,共4页
Steelmaking
关键词
LF
温度控制
吹氩
造渣
一次脱硫率
精炼周期
LF
temperature control
argon blowing
slaging
the first desulphurization rate
refining cycle
