炼焦煤选煤厂提高选煤产率的新思路  

A new thinking for increasing concentrate yield in a plant cleaning coking coal

作　　者：胡二峰[1] 付晓恒[1] 胡晓星[1] 王婕[1] 李琼[1] 王平平[1] 郭晓波[1] 

机构地区：[1]中国矿业大学(北京)化学与环境工程学院,北京100083

出　　处：《煤炭加工与综合利用》2013年第1期12-15,7,共4页Coal Processing & Comprehensive Utilization

摘　　要：结合古交某炼焦煤原煤煤质化验资料,提出对原煤进行初次低密度分选,分选完成后对低密度中煤进行超细磨矿,使煤与矸石充分解离,然后再采用絮团浮选的方式对其进行分选。在原有精煤灰分要求不变的情况下,将初次分选精煤与浮选精煤进行配比而得到最大精煤产量,达到提高精煤产率的目的。Concerned with coal analysis data of some coking coal of Gujiao,a new thinking on cleaning process proposed;in which,preliminary cleaning taken at a density lower than that required for meeting the final concentrate ash,the low-ash middling be ultra-fine ground for full liberation between coal and ash minerals followed by a separation process of flocculation-flotation,and blending of the preliminary concentrate with the flotation concentrate in proper ratio to meet the required ash content at a maximum concentrate yield.

关 键 词：炼焦煤 超细磨矿 絮团浮选 精煤产率 工艺改进 

分 类 号：TD941.4[矿业工程—选矿]