石钢60t转炉采用石灰石替代石灰造渣炼钢试验  

Experimental Study on Using Limestone Instead of Lime for Slagging in 60tConverter

作　　者：董大西[1,2] 冯佳[1] 年武 李宏[1] 梁玫[2] 刘瑞宁[2] 

机构地区：[1]北京科技大学冶金与生态工程学院,北京100083 [2]石家庄钢铁有限责任公司,河北石家庄050031

出　　处：《中国冶金》2013年第11期58-61,共4页China Metallurgy

基　　金：国家科技支撑计划(2012BAC27B02)

摘　　要：讨论了石钢60t转炉用石灰石替代石灰造渣炼钢的试验结果,回归分析得出终点温度与诸原料添加量之间的关系,证明添加石灰石可以为熔池氧化反应提供一部分氧,认为石灰石替代石灰比率增加对终渣磷分配比提高有些好处,终点钢水温度、终渣总铁量、终渣碱度是要控制的重要因素。The experiment of using limestone instead of lime for slagging in 60t LD of Shijiazhuang Iron and Steel Company was conducted. The relation between endpoint temperature and the addition various materials was discussed by regression anal- ysis on the experimental data. The results indicate that the addition of limestone is able to supply part of oxygen for the oxida- tion reactions in bath. The increase of the proportion of lime replaced by limestone is beneficial to improve Lp of final slag. Endpoint temperature, （TFe） content and the basicity of final slag are key controlling factors.

关 键 词：石灰石 造渣 物料平衡 替代比率 温度 终渣 

分 类 号：TF713[冶金工程—钢铁冶金]