Effect of MgO-Bearing Additive on Metallurgical Property of Pellets

摘要：

　　The caustic calcined magnesite is used as an additive to produce oxidized pellet.The charterers of caustic calcined magnesite are analyzed.The effects of its addition on metallurgical properties are also investigated including compressive strength (CS),the low-temperature reduction degradation index (RDI),and the reduction swelling index (RSI).It is found that the caustic calcined magnesite roasted at 850°C demonstrates better grindability,larger specific surface area,and higher reactive.The results shown that: 1) the addition of caustic calcined magnesite can improve the quality of the pellets.With the addition of caustic calcined magnesite content increases,the RDI and RSI of pellets decrease significantly; 2) when the content of caustic calcined magnesite is less than 2.0% in pellets,the CS is lowered slightly,but still over 2689N/pellet,which can meet the requirement of blast furnace process.

关键词： MgO-Bearing Additive Pellets Reduction degradation index Reduction swelling index

作者: Shen Feng-man GAO Qiang-jian Wei Guo Ding Zhi-min

作者单位: School of Materials and Metallurgy,Northeastern University,Shenyang 110004,Liaoning,China

会议类型: 国际会议

会议名称: Asia Steel International conference 2012(第五届亚洲钢铁大会)

会议地点: 北京

会议语种:英文

页码: 1-7

在线出版日期: 2012-09-23（万方平台首次上网日期，不代表论文的发表时间）