LF精炼废渣再利用的研究  

Research of LF Refining Waste Slag Recycling

作　　者：韩鹏龙 王硕明[1] 王雁[1] 

机构地区：[1]河北联合大学冶金与能源学院,教育部,河北省重点实验室,河北唐山063009

出　　处：《铸造技术》2014年第4期720-722,共3页Foundry Technology

基　　金：河北省自然科学基金资助项目(编号:E2012209023)

摘　　要：某厂采用转炉出钢→加LF精炼废渣→连铸的工艺流程对生产Q195钢种进行简易渣洗,对比转炉出钢→连铸的原流程进行了硫、磷的系统分析。结果表明:一方面简易渣洗能有效降低钢包顶渣的氧化性,增强钢包渣的还原性,提高吸附夹杂物的能力,为最终达到精炼效果创造了条件,虽然钢中硫含量略有提高,但并不影响钢的品质,传统流程钢液平均回磷0.006 5%,简易渣洗流程下钢液平均回磷0.002 0%,说明钢包精炼渣能够明显的抑制回磷;另一方面简易渣洗能实现废渣的回收利用,降低车间的环境污染,节省废渣处理成本,有利于钢厂实现节能减排。Using the process of converter tapping→ plus LF refining waste slag→ continuous casting to conduct simple slag washing in producing Q195 steel of a factory, compared with the converter tapping→ continuous casting process, the systems analysis about the sulfur and phosphorus in steel was completed. The study results show that, On one hand, simple slag washing can effectively reduce the slag ladle slag oxidation, enhance ladle slag reduction, improve adsorption capacity of inclusions to create the conditions of refining effect. Although slightly higher is sulfur content in steel, it does not affect the quality of steel. The average rephosphorization of molten steel is 0.006 5% in traditional process, and is 0.002 0% in easy slag washing process, which indicates that ladle refining slag could significantly inhibit the return of phosphorus. On the other hand, simple slag washing can achieve the recycling of waste slag and reduce environmental pollution in workshop, save waste slag disposal costs, help steel mills to achieve energy saving and emissions reduction.

关 键 词：LF精炼废渣 简易渣洗 回磷 

分 类 号：TF769[冶金工程—钢铁冶金]