摘要
在1100～1400℃,利用微波加热方式对转炉钢渣的碳热还原行为进行研究。结果表明,钢渣配加碳还原剂在微波场中可得到直径为10～20mm的Fe-C合金。碳当量越高,温度越高,粒度越小,保温时间越长,还原出的铁和磷含量越高。增加渣中SiO2含量也能有效改进还原效果。研究确定了微波场对还原反应的促进作用,在低温条件下实现了钢渣的还原脱磷,脱磷率最高可达到91.5%。
The behavior of carbon thermal reduction of the converter slag is studied by microwave heating at 1 100 to 1 400 ℃ o Results show that Fe-C alloy in10-20 mm diameter can be obtained in the microwave field by use of steel slag with addition of appro- priate carbon reductive agent. The higher the carbon equivalent, the higher the temperature, the smaller the particle size and the longer the holding time, the higher the content of the reduced Fe and P will be. The effect of reduction can be improved by increasing the SiO2 content in the slag. Study also confirms the promotion role of the microwave field to the reduction reaction. Under the low temperature condition dephosphorization by steel slag is realized and the dephosphorization rate reaches as high as 91.5 %.
出处
《炼钢》
CAS
北大核心
2010年第4期70-74,共5页
Steelmaking
基金
河北省自然科学基金资助项目(E2008000394)
关键词
转炉钢渣
微波加热工艺
还原
脱磷
converter slag
microwave processing
reduction
dephosphorization
