极高细泥含量的难浮煤泥降灰提质试验研究

doi:doi：10.11799/ce201312036

煤炭工程 ›› 2013, Vol. 45 ›› Issue (12): 103-105.doi: doi：10.11799/ce201312036

极高细泥含量的难浮煤泥降灰提质试验研究

赵勇

中国矿业大学化工学院

收稿日期:2013-04-21 修回日期:2013-05-10 出版日期:2013-12-10 发布日期:2013-12-10
通讯作者: 赵勇 E-mail:342388266@qq.com

Studies on reducing ash of high content of fine clay of a hard-to-float fine coal

Received:2013-04-21 Revised:2013-05-10 Online:2013-12-10 Published:2013-12-10

摘要/Abstract

摘要：

为降低细泥含量极高的难浮煤泥的精煤灰分，文章研究了矿浆浓度和温度、药剂制度、抑制浮选、浮选设备和工艺等因素对浮选效果的影响，找出了降灰的最佳条件，实现了精煤灰分小于9%的前提下，浮选数量效率大于90.81%的工艺指标。

关键词: 矿浆温度, 矿浆浓度, 脱泥浮选, 分子吸附, 表面自由能

Abstract:

In order to reduce the ash of difficult floated coal slime containing sufficient amount of fine slime, this paper investigated the influence of some factors to the flotation effect, including pulp density, temperature, regime of agent, depressing flotation, flotation equipment and technology. The best conditions to reduce the ash were found, and the technique index that the flotation recovery efficiency was greater than 90.81% was achieved on the premise that cleans ash was less than 9%.

Key words: Pulp temperature, Pulp density, Desliming flotation, Molecular adsorption, The surface free energy