静电作用对水相中煤脱除成灰矿物的影响  

The effect of the electrostatic function on deashing from coal in aqueous phase

作　　者：尚洪山[1] 何国锋[1] 陈明波[1] 陈贵峰[1] 关北峰 金玉和[1] 

机构地区：[1]煤炭科学研究总院北京煤化学研究所,北京100013

出　　处：《煤炭学报》1999年第5期538-542,共5页Journal of China Coal Society

基　　金：煤炭科学基金

摘　　要：采用静电场研究了添加团聚剂的水相中煤脱除成灰矿物的试验结果， 发现强的静电作用能促进煤中成灰矿物的脱除， 但可燃质收率有所降低； 另外， 添加某些化学药剂可进一步提高脱灰效果． 静电场的影响作用与成灰矿物颗粒本身的电特性有关， 强的静电作用有助于成灰矿物存在于水相中．The test results of deashing from coal in aqueous phase added with agglome rator is studied by electrostatic field.It was found that the strong electrostatic function can improve the rate of deashing from the coal, but it also decreases the recovery rate of combustible matter. In addition,adding some chemical agents can further raise deashing effect. The affection of electrostatic field relates to the electro property of particle of the mineral, strong electrostatic function helps the minerals exist in aqueous solution steadily.

关 键 词：静电作用 电势差 脱灰 水相 煤 成灰矿物 

分 类 号：TD942.43[矿业工程—选矿]