大同煤的摩擦电选试验研究  

Experiment Study of Triboelectrostatic Beneficiation for Datong Coal

作　　者：章新喜[1] 高孟华[1] 段超红[1] 杨玉芬[1] 王东兴[1] 蒋善勇[1] 张军华[1] 孙乾[1] 

机构地区：[1]中国矿业大学化工学院,江苏徐州221008

出　　处：《中国矿业大学学报》2003年第6期620-623,共4页Journal of China University of Mining & Technology

基　　金：国家高技术研究发展计划(863计划)项目(2002AA529120);国家重大基础研究发展规划(973计划)项目(G1999022205-03)

摘　　要：应用摩擦电选技术对大同煤进行了分选试验研究.研究结果表明分离室中电场强度及电场均匀性、载体气流速度、分离室中负压度等因素对摩擦电选过程产生显著影响,原煤可选性对摩擦电选过程产生决定性影响.选前对煤样进行超声波预处理和微波预处理后其分选效果下降,这对摩擦电选技术研究具有一定的参考价值.An experiment of triboelectrostatic beneficiation of Datong coal was performed. And the influence of pre-treatment by microwave and ultrasonic wave on the triboelectrostatic separation process was discussed The result shows that 1) factors such as strength and uniformity of electric field, flow velocity of gas; degree of negative pressure in separation chamber have an obvious influence on triboelectrostatic separation; 2) the washability of coal sample has a determined effect on triboelectrostatic process; and 3) the ultrasonic pre-treatment results in a bad effect of separation. However, the data are significant for a further study of triboelectrostatic separation.

关 键 词：摩擦电选 微粉煤 试验研究 微波预处理 超声波预处理 大同煤 

分 类 号：TD94[矿业工程—选矿] TD924.5