三锥角水介旋流器用于粗中煤泥分选的研究  

Study on three taper angles hydrocyclone used for separating coarse coal slime of middlings

作　　者：张祥宇[1] 崔广文[1] 杨硕[2] 赵光凯[2] 王本强[2] 

机构地区：[1]山东科技大学化学与环境工程学院,山东青岛266590 [2]新汶矿业集团孙村煤矿,山东新泰271200

出　　处：《选煤技术》2014年第6期12-15,共4页Coal Preparation Technology

基　　金：中国煤炭协会指导性计划项目(MTKJ 2013-347)

摘　　要：针对孙村选煤厂粗中煤泥里>0.18 mm粒级产率达到61.86%,累计灰分为26.15%,含有大量精煤的实际情况,该厂通过采用三锥角水介旋流器对粗中煤泥进行分选,不仅完善了分选工艺,并且解决了孙村选煤厂生产实际问题,提高了经济效益。改造完成后,选煤厂精煤产率提高了0.51个百分点,每年可增加销售收入346.5万元。The yield and total ash content of middlings coarse coal slime,＋ 0. 18 mm,are 61. 86% and26. 15% respectively according to screening float- and- sink test of these slime in Suncun coal preparation plant,which show that plenty of clean coal included in these slime need to be collected. Not only is separation technology improved,but the problems of actual production are solved by using three taper angles hydrocyclone,new equipment separating coarse coal slime,to separate middlings coarse coal slime as well as combining with heavy medium flotation technology. The clean coal yield are improved by0. 51% at the same time sales revenues are increased by 3. 465 million each year after modification.

关 键 词：煤泥分选 三锥角水介旋流器 粗中煤泥 分选工艺 

分 类 号：TD942[矿业工程—选矿]