转炉高效脱硫技术研究及应用
Research and Application of High-efficiency Desulfurization Technology for Converter
孙利钘 1韩学义1
作者信息
- 1. 首钢长治钢铁有限公司,山西 长治 046031
- 折叠
摘要
长钢炼钢厂主要生产钢种要求w(S)≤0.040％,但铁水w(S)为0.020％～0.070％,波动较大且带渣量大(约1.0％),在无铁水预处理工艺前提下,通过采用高碱度、提余锰、双渣工艺等措施,使脱硫率达到40％以上,提高约10％,为炉后直上工艺奠定基础,降低精炼炉工艺成本约20元/t.
Abstract
Changgang Steel Plant mainly produces steel grades with a requirement of w(S)≤0.040％,but the w(S)of molten iron is 0.020％～0.070％,which fluctuates greatly and has a large amount of slag(about 1.0％).Without the pretreatment process of molten iron,measures such as high alkalinity,residual manganese extraction,and double slag process are adopted to achieve a desulfurization rate of over 40％,an increase of about 10％,laying the foundation for the direct up process after the furnace and reducing the refining furnace process cost by about 20 yuan/t.
关键词
高碱度/提余锰/炉后直上Key words
high alkalinity/residual manganese/straight up after shutdown引用本文复制引用
出版年
2024
NETL
NSTL
万方数据