基于摩擦电选的微粉煤提质试验研究  

Experimental study on fine coal upgrading based on tribo-electrostatic separation

作　　者：杨啸[1] 章新喜[1] 李鑫[1] 董辉[2] 

机构地区：[1]中国矿业大学化工学院,江苏徐州221008 [2]徐州市铜山区国土资源局

出　　处：《矿山机械》2012年第12期77-80,共4页Mining & Processing Equipment

摘　　要：为探索不同煤样的摩擦电选效果、确定合适的入料粒度组成和相对湿度界限进行了一系列的试验,试验得出:相对于烟煤和褐煤,无烟煤的摩擦电选效果较好,与褐煤混合后的煤样分选效果会变差;当空气的相对湿度小于80%时,电选机正常工作,分选效果较好;入料粒度组成达到70%小于0.074mm时,可使分选效果保持在一个较高的水平。To explore the tribo-electrostatic separation effects of various coal samples, and determine the appropriate composition and relative humidity of feeding size, a series of experiments were conducted. The experimental results showed： compared with bituminous coal and lignite, anthracite had better separation effects, and the mixture of lignite and other coal samples had worse separation effects; when the air relative humidity was less than 80%, the tribo-.electrostatic separator worked well with considerable separation effects; the feeding containing 70% particles less than 0.074 mm brought about an excellent separation effects.

关 键 词：摩擦电选 微粉煤 脱硫 降灰 

分 类 号：TD94[矿业工程—选矿]