转炉采用石灰石造渣炼钢操作制度研究  

Operating system of limestone slagging in BOF steelmaking process

作　　者：李晨晓 常凤 薛月凯 李宏[3] LI Chenxiao CHANG Feng XUE Yuekai LI Hong(Metallurgy and Energy College, North China University of Science and Technology, Tangshan 063000, China Long Wood Department,I-IBIS Group Tangsteel Company,Tangshan 063000,China State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China)

机构地区：[1]华北理工大学冶金与能源学院,河北唐山063000 [2]河钢集团唐钢公司长材部,河北唐山063000 [3]北京科技大学钢铁冶金新技术国家重点实验,北京100083

出　　处：《炼钢》2017年第5期54-60,共7页Steelmaking

摘　　要：为探索并建立转炉采用石灰石代替石灰造渣炼钢工艺制度,在首秦100t转炉和石钢60t转炉上进行了石灰石与石灰造渣对比试验。试验结果表明:转炉采用石灰石代替石灰造渣,铁水入炉比在92.5%左右较为合适;在造同碱度渣脱磷时,2种造渣方法中石灰石与石灰加入比为1.28∶1;石灰石造渣前期炉渣泡沫化程度提高,可通过降低前期氧枪枪位来改善石灰石造渣溢渣。In order to explore and build the technology system of converter using limestone instead of lime for slagging steelmaking process, the comparison experiment between limestone-slagging and lime slagging was carried out in Shouqin 100 t converter and Shisteel 60 t converter. The results showed that when converter adopted limestone instead of lime for slagging, the molten iron ratio into furnace was about 93 % more appropriate. When adopting the same basicity for dephosphorization, the addition ratio of limestone and lime was 1.28 ： 1 in the two slagging methods. The foaming degree of limestone-slagging improved in the early stage, and the slag overflow problem could be solved by reducing the oxygen lance position.

关 键 词：转炉炼钢 造渣 石灰石 操作制度 少渣冶炼 

分 类 号：TF713.3[冶金工程—钢铁冶金]