含碳球团还原过程收缩变化的研究  

Study on volume shrinkage of carbon-containing pellets during reduction

作　　者：赵雨霄 张志学[2] 张建业[2] 岳福平 王静松[3] 王广[3] 

机构地区：[1]北京科技大学自然科学基础实验中心,北京100083 [2]北京科技大学冶金与生态工程学院,北京100083 [3]北京科技大学钢铁冶金新技术国家重点实验室,北京100083

出　　处：《烧结球团》2017年第4期19-22,53,共5页Sintering and Pelletizing

基　　金：国家自然科学基金项目(No.51374024);中国博士后科学基金项目(No.2016M600919)

摘　　要：基于转底炉直接还原工艺,考察了温度、碳氧比和碱度对球团还原过程中体积收缩变化的影响。结果表明:提高温度,增加碳氧比和碱度均可加快球团收缩过程,提高球团体积收缩率。在此基础上,对球团体积收缩变化过程进行描述。The influence of temperature, carbon oxygen ratio and basicity on volume shrinkage during the reduction of pellets were investigated based on the direct reduction process of rotary hearth furnace. The results show that, improving temperature, increasing carbon oxygen ratio and basicity can speed up the process of pellet shrinkage and increase pellet shrinkage rate. On this basis, the process of pellet volume shrinkage is described.

关 键 词：含碳球团 转底炉 直接还原 体积收缩 收缩率 

分 类 号：TF046.6[冶金工程—冶金物理化学]