含Si铬铁矿粉微波体还原的工艺探究  

The technology study of voluminal reduction on chromite ore fines containing silicon heated by microwave

作　　者：吴奎霖[1,2,3] 李磊[1,2,3] 朱红波[1,2,3] 彭金辉[1,2,3] 张利波[1,2,3] 代林晴[1,2,3] 

机构地区：[1]微波能工程应用及装备技术国家地方联合工程实验室,云南昆明650093 [2]非常规冶金省部共建教育部重点实验室,云南昆明650093 [3]昆明理工大学冶金与能源工程学院,云南昆明650093

出　　处：《粉末冶金工业》2015年第5期22-25,共4页Powder Metallurgy Industry

基　　金：云南科技创新人才计划资助项目(2013HA002);国家自然科学基金资助项目(51504114)

摘　　要：研究了微波体还原含Si铬铁矿粉在不同冶炼温度、保温时间以及终点出料温度条件下对还原产物Cr-Fe合金聚集长大以及渣金分离的影响,并对还原产物Cr-Fe合金进行化学成分分析。在冶炼温度1300℃,保温40 min,出料温度控制在1450℃条件下,金属相能更好地聚集成块,实现渣金分离,其产物能达到(GB5683-87)FeCr55C25Ⅱ要求。Influence of various smelting temperature, holding time and end-point temperature on the conglomera- tion, growing and separation of the Cr-Fe alloy during voluminal reduction on chromite ore fines containing silicon heated by microwave was studied. The chemical composition of reduction products Cr-Fe alloy was also analyzed. The results show that the reduction product Cr-Fe alloy conglomerates to block and separates from slags preferably at smelting temperature of 1 300 ℃, holding time of 40 minutes and end-point temperature of 1 450 ℃. The com- position of reduction products Cr-Fe alloy meets requirements of （GB5683-87） FeCr55C25II.

关 键 词：微波加热 含Si铬铁矿粉 低碳Cr-Fe 

分 类 号：TF641[冶金工程—钢铁冶金] TF123