氧化锰对高氧化铝含量高炉渣性能影响的实验  

Experiment of the Influence of Manganese Oxide on the Prosperities of High Alumina Content BF Slag

作　　者：王立芬[1] 张丙怀[1] 阳海彬[1] 刁岳川 廖东海 

机构地区：[1]重庆大学材料科学与工程学院,重庆400030 [2]南京钢铁集团公司技术中心,江苏南京210035

出　　处：《重庆大学学报（自然科学版）》2006年第4期32-33,46,共3页Journal of Chongqing University

基　　金：南京钢铁集团公司资助项目

摘　　要：南京钢铁集团公司高炉炉渣中氧化铝含量高达19%,因此炉渣流动性变差,高炉被迫采用高温操作,铁水硅含量偏高,影响了高炉的强化.针对这个问题,实验测定了由分析纯化学试剂配制的南钢高炉模拟渣样在加入氧化锰后的粘度,并根据实验结果分析了氧化锰对高氧化铝含量高炉渣性能的影响,得出南钢高炉降低铁水硅含量的措施.结果表明:在高A l2O3含量炉渣中,添加MnO对其降低粘度的作用效果非常大,同时炉渣粘度的降低将允许适当降低高炉操作温度,有利于降低铁水硅含量.Alumina content in Nanjing Steel blast furnace slag is up to 19%, which results in worse slag fluidity, higher furnace operating temperature and higher silicon content of hot metal. Therefore blast furnace strengthening is reduced. Aiming at this problem, an by laboratory experiments the viscosity of simulating Nanjing Steel BF slag samples are measured after adding MnO, which are made up of analytically pure chemical reagents. And according to the experimental results, the influence of MnO on the properties of high alumina content BF slag is analyzed and the methods of reducing silicon content of hot metal in Nanjing Steel is educed. The results showed that the addition of MnO in high Al2O3 content slag has stronger effects on viscosity decreasing, and the decreasing of slag viscosity would make it possible to reduce the operating temperature of the blast furnace, which would result in decreasing of silicon content of hot metal.

关 键 词：高炉炉渣 氧化锰 氧化铝 粘度 硅含量 

分 类 号：TF513[冶金工程—钢铁冶金]