分级浓缩浮选工艺探讨  

An inquiry into the technology of classified and thickened slime flotation

作　　者：张高峰[1] 陈建中[1] 沈丽娟[1] 张娟[1] 

机构地区：[1]中国矿业大学化工学院,江苏徐州221008

出　　处：《煤炭加工与综合利用》2010年第1期18-20,共3页Coal Processing & Comprehensive Utilization

摘　　要：针对选煤厂目前使用的浮选工艺分选精度低、高灰细泥污染严重的问题,提出了分级浓缩浮选工艺;采用分级旋流器组将煤泥分级,粗颗粒用浮选机分选,细颗粒经浓缩后用浮选柱浮选;提高了煤泥的浮选精度和精煤产率,增加了企业经济效益。In view of the serious pollution by high-ash fine slime originated from low selectivity of current flotation process in coal preparation plant,proposed was a process in which the coarse slime,underflow from the classifying cyclone,treated by conventional flotation machine and its overflow thickened and treated by flotation column;such process enables improving the floatability of coarse slime and the selectivity of fine slime;thus,pollution by high-ash fine slime decreased,concentrate yield of flotation increased,reagent consumption reduced and economic benefit of enterprise increased.

关 键 词：选煤厂 分级浓缩浮选 分级旋流器组 浮选柱 

分 类 号：TD923[矿业工程—选矿]