摘要
重钢使用CaO-Mg混合脱硫剂进行铁水预处理脱硫,脱硫渣流动性差、渣铁分离困难.解决这一问题的途径一般是采用改性剂对脱硫渣进行改性.通过研究分析,在原有重钢改性剂的基础上对其进行组分的优化,优化后改性剂的熔点930°C,在1250°C时黏度为0.627Pa·s;通过该改性剂改性的脱硫渣熔点在1350～1370°C之间,黏度小于1Pa·s.初步工业实践表明,该改性剂很好地改善了脱硫渣的物理性能,能解决渣铁分离的难题.
The admixture of CaO and Mg was used to treat the hot metal for desulphurizing in Chongqing Steel Corporation. The fluidity of the desulfurizd slag is not of benefit to separating the molten slag from hot metal. Usually, the way to resolve the problem is modifying the desulfurizd slag with using the modifying agent. The compositions of the modifying agent were optimized through experiment analysis. It is found that the melt-ing point of the modifying agent is 930°C, and the viscosity is 0.627 Pa?s at 1250°C, the melting point of the modified desulfurization slag is from 1350 to 1370°C, and the viscosity is less than 1 Pa?s. The primary plant trial showed that the modifying agent could properly solve the problem of separating slag from hot metal.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
2007年第S1期40-43,共4页
Journal of University of Science and Technology Beijing
关键词
铁水预处理
脱硫
脱硫渣
改性剂
物理性能
hot metal pretreatment
desulphurization
desulfurized slag
modifying agent
physical proper-ties
