棋盘井选煤厂煤泥浮选工艺优化试验研究  

Optimizing test and research on slime flotation process in Qipanjing coal preparation plant

作　　者：袁治国[1,2] 温磊[1,2] 耿郑州[2] 张金山[2] 周志龙[2] 

机构地区：[1]神华蒙西煤化股份有限公司棋盘井选煤厂,内蒙古鄂尔多斯016014 [2]内蒙古科技大学矿业工程学院,内蒙古包头014010

出　　处：《选煤技术》2014年第1期23-26,29,共5页Coal Preparation Technology

摘　　要：为改善棋盘井选煤厂煤泥浮选效果,在实验室条件下,通过煤泥分级浮选、二次浮选、分级浮选+二次浮选试验来探究最佳浮选工艺,并对聚丙烯酰胺的最佳用量和作用时间进行探索。试验结果表明:分级浮选对于改善煤泥浮选效果的作用不大;二次浮选在一定程度上可有效改善煤泥浮选效果,特别是精煤的精选可有效降低精煤灰分;在合理的药剂用量和作用时间内,聚丙烯酰胺可改善煤泥浮选效果。In order to improve the coal slime flotation effect of Qipanjing coal preparation plant, under the condition of laboratory, conducted the sizing flotation, secondary flotation and sizing flotation ＋ sec- ondary flotation to explore the best flotation process, and also researched the best dosage and reaction time of poly propylene amide. The test results showed that the sizing flotation has little effect on improving the effect of slime flotation; the secondary flotation can effectively improve the slime flotation effect to a certain extent, especially coal selection can effectively reduce the ash content of clean coal; within rea- sonable dosage and reaction time, poly propylene amide can improve the effect of slime flotation.

关 键 词：煤泥 分级浮选 二次浮选 聚丙烯酰胺 药剂用量 作用时间 灰分 

分 类 号：TD943[矿业工程—选矿]