高梯度磁选煤脱硫的理论基础及实验研究  

THEOREITCAL BASSIS AND EXPERIMENTAL STUDY OF COAL DESULFURIZATION USING HGMS

作　　者：曾鸣[1] 郑建中[1] 邵绪新[1] 郭梦熊[1] 

机构地区：[1]中国矿业大学北京研究生部

出　　处：《洁净煤技术》1996年第1期20-24,共5页Clean Coal Technology

基　　金：煤炭部“八五”重点科研资助项目

摘　　要：对煤系黄铁矿的表面特性进行了理论分析,并测定了煤及煤系黄铁矿的磁化率。结果表明,煤系黄铁矿表面富碳,但它与煤的磁性相反,煤呈逆磁性,黄铁矿呈顺磁性,为HGMS煤脱硫提供了理论依据。在此基础上,利用CHG-10型高梯度磁选机进行了细粒煤脱硫实验,处理南桐—0.3mm高硫煤,取得了精煤产率65％,脱硫率60％以上的较好效果。Theoretical analysis for the surface properties of coal-pyrite and mass susceptibilities of different kinds of coal-pyrite crystal forms and coats are studied. The result show that carbon is rich on the surface of coal-pyrite. Magnetic characteristics of coal-pyrite is opposite to that of coal which is diamagnetic fossil, The above results can be used as a theortical bases for HGMS coal desulfurization. Further, desulfurization tets of fine coal have been done using CHG-10 HGMS in the laboratory. The clean coal with desulfurization rate 80% and yield 85% has been obtained for-0. 3 mm Nantong high sulfur coal.

关 键 词：选煤 脱硫 高梯度磁选 实验研究 

分 类 号：TD942.62[矿业工程—选矿]