高硫细粒煤泥柱-机联合浮选脱硫试验研究  

Desulfurization Tests on Fine High-sulfur Coal Slime by Flotation Column and Flotation Machine

作　　者：陈文辉 刘佳 李逸东 李帅 CHEN Wenhui;LIU Jia;LI Yidong;LI Shuai(School of Chemistry and Materials Engineering,Liupanshui Normal University,Liupanshui,Guizhou 553004,China)

机构地区：[1]六盘水师范学院化学与材料工程学院,贵州六盘水市553004

出　　处：《矿业研究与开发》2018年第9期67-71,共5页Mining Research and Development

基　　金：贵州省教育厅青年科技人才成长项目(黔教合KY字[2017]259);贵州省重点支持学科项目(黔学位合字ZDXK[2016]24号);六盘水师范学院科学研究项目(LPSSY201703);六盘水师范学院大学生科研项目(LPSSYDXS17042);贵州省"2011协同创新中心"建设项目(黔教合协同创新字[2016]02)

摘　　要：针对某细粒煤泥硫分含量高,且有机硫含量约为0.8%的难选高硫煤泥,采用浮选柱与浮选机联合进行脱硫试验。采用浮选柱对细粒煤泥进行粗选脱硫,考查了煤浆浓度及药剂用量对细粒煤泥脱硫效果的影响。在条件试验的基础上,利用正交试验考查了不同因素对脱硫效果的影响程度以及最佳因素水平。采用浮选机对浮选柱得到的粗选精煤进行精选,经过"一粗两精"柱-机联合浮选,精煤硫分可从原煤3.92%降低到1.36%,取得了较好的试验结果。A fine coal slime has a high content of sulfur, and is difficult to separate with the organic sulfur content of about 0.8 %. Aimed at this problem, desulfurization tests were conducted by flotation column and flotation machine, so as to investigate the effects of the concentration of coal slurry as well as the dosages of various flotation reagents on the desulfurization efficiency. On the basis of condition tests, the orthogonat tests were carried out to study the effects of various parameters on the desulfurization efficiency, and the optimal factors and levels were investigated. Then, the flotation column was used to conduct cleaner flotation on the rougher cleaned coal obtained from flotation column tests. Under the process of one rougher and two cleaning, very encouraging results were obtained by the flotation column and flotation machine. As the result, the sulfur con- tent of coal concentrate could be decreased to 1.36% from the raw coal slime of 3.92%.

关 键 词：高硫细粒煤泥 浮选柱 浮选机 脱硫 

分 类 号：TD923[矿业工程—选矿]