中南大学学报（自然科学版）2017，Vol.48Issue(1)：31-38,8.DOI:10.11817/j.issn.1672-7207.2017.01.005
烧结中使用钢渣磁选尾渣替代部分烧结熔剂的实验研究
Experimental study on application of steel slag magnetic tailings replacing part of sintering flux during sintering
摘要
Abstract
Fundamental characteristics of magnetic separation tail slags were studied by chemical analysis,X-ray diffraction analysis,optical microscope analysis and other analysis methods.The microstructure and metallurgical properties of the sinter were studied,while magnetic separation tail slags were added into sintering material with 0,2.5％,5.0％ and 10.0％,respectively.The results show that when the mass fraction of tail slags in the sintering material is less than 5.0％,with the increase of tail slags content,calcium ferrite content in the sinter tends to increase,the sinter yield elevates,strength and drum strength both improve.Then all these metallurgical performances tend to decrease,while the mass fraction of tail slags continues to increase.However,the vertical sintering speed and productivity of sintering decrease if the content of tail slags in sintering increases.The reducibility index of sinter and the low temperature reduction degradation index can be improved with the increase of the slag content.And these performances decrease when the mass fraction of tail slags is more than 5.0％.With the increase of tail slags content,the high free flow temperature and soften-melting temperature of sinter make softening temperature intervals expand,and worsen the softening-melting properties of sinter.关键词
磁选尾渣/烧结/熔剂/冶金性能Key words
magnetic separation tail slags/sintering/fluxes/metallurgical properties分类
资源环境引用本文复制引用
孟飞,刘清才,朱广太,任山,朱博洪,兰苑培,刘国庆,牛德良..烧结中使用钢渣磁选尾渣替代部分烧结熔剂的实验研究[J].中南大学学报（自然科学版）,2017,48(1):31-38,8.基金项目
重庆市应用开发计划项目(cstc2014yykfB100007) （cstc2014yykfB100007）
中央高校基本科研业务费专项资金资助项目(106112015CDJXY130016) (Project(cstc2014yykfB100007) supported by Chongqing Application and Development Project （106112015CDJXY130016）
Project (106112015CDJXY130016) supported by the Fundamental Research Funds for the Central Universities) （106112015CDJXY130016）
