摘要
以选矿拜耳法生产氧化铝过程中形成的铝土矿浮选尾矿为原料、以煤和石油焦为还原剂,以纸浆干粉为黏结剂,通过混合和压制的方式制取可用于还原熔炼的团块状物料.重点检测了团块的抗压强度和比电阻.研究结果表明:由不同种类的煤制备的团块在抗压强度和比电阻上均存在较大差异;随着纸浆干粉含量的增加团块的抗压强度增大,但比电阻迅速减小;还原剂配比发生变化对团块抗压强度和比电阻均没有显著的影响.
Using flotation tailings which were formed during Bayer beneficiation producing alumina as raw materials,using coal and petroleum coke as reductant,and the dry powder of pulp as adhesive,the briquettes material for reduction smelting was obtained by mixing and the suppression.Compressive strength and specific resistance were detected.The results showed that the compressive strength and specific resistance of briquettes are different with changing of types of coal.The compressive strength increases with increasing the content of dry powder of pulp in briquette,but the specific resistance decreases quickly.The changes of reductant proportion,which means the proportion between coal and petroleum coke and all of them is used as reductant at the same time,have no significant influence on the compressive strength and specific resistance.
出处
《东北大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2012年第5期694-697,共4页
Journal of Northeastern University(Natural Science)
基金
国家高技术研究发展计划项目(2007AA06Z116
2008AA03Z512)
关键词
抗压强度
比电阻
团块
浮选尾矿
铝硅铁合金
compressive strength
specific resistance
briquette
flotation tailings
Al-Si-Fe alloy
作者简介
罗洪杰（1965-），男，辽宁本溪人，东北大学教授；
姚广春（1947-），男，辽宁沈阳人，东北大学教授，博士生导师．
