2017年第3期（总第231期）
doi:10.3969/i. issn. 1009 3230.2017.03. 004
应用能源技术
七台河选煤厂粗煤泥分选试验研究
刘井江"，孙瑞，胡秉双”，李悦
15
（1.龙煤集团七煤公司七台河洗煤厂，黑龙江七台河154600;2.黑龙江科技大学矿业工程学院，哈尔滨150022：
3.鸡西亚泰选煤有限公司，黑龙江鸡西158110;4.鹤岗师范高等专科学校，黑龙江鹤岗154000）
摘要：文中针对七煤集团公司七台河选煤厂粗煤泥进行了粒度组成分析和小浮沉试验，得出该厂粗煤泥中+80目累计产率高达58.03%，累计灰分为44.92%，灰分较高；低密度级含量较多，其中-1.4/cm密度级浮物累计产率高达40.01%，灰分仅为8.95%，说明该粗煤泥中精煤含量较多。为了提高全厂精煤产率最大化，采用三锥角水介质旋流器对本厂粗煤泥进行探索性试验，取得了很好的试验效果。
关键词：粗煤泥；水介旋流器；分选
中图分类号：TD94.1
文献标志码：B
文章编号：10093230(2017)03-0015-04
QitaiheCoalPreparationPlantofCoarseCoalSlime
SeparationTestResearch
LIU Jing jiang', SUN Rui', HU Bing shuang", LI Yue
(1.The Long coal group Seven coal company Qitaihe coal washery,Qitaihe154600, Heilongjiang Province, China; 2 College of Mineral Engineering,Heilongjiang University of Science and Techonology,Harbin 150022,China; 3.Jixi Yatai coal limted,Jixi 158110
Heilongjiang Province, China; 4.Hegang Teachers College, Hegang 154000,
Heilongjiang Province, China)
Abstract:This article in view of the seven coal group company on the grain size of coarse coal slime has carried on the analysis of qitaihe coal preparation plant and small ups test, it is concluded that the plant in the coarse coal slime + 80 mesh cumulative production rate is as high as 58.03% , the total ash content was 44.92% , higher ash content; Low density level content more, of which 1. 4 g/cm density level's cumulative production rate is as high as 40.01%, ash content is only 8.95% , the content of cleaned coal show that the coarse coal slime is more. In order to improve the factory plant yield maximization, the use of three cone Angle cyclone water medium to coarse coal slime exploratory
experiment was carried out in our factory, good experiment results have been achieved. Key words: Coarse coal slime; Water medium cyclone; Sorting
0
引言
七煤集团公司七台河选煤厂经过多年的技术改造，形成了以粗粒煤重介旋流器分选、煤泥浮选为主的成熟分选工艺[]。目前国内选煤行
收稿日期：2017-01-28
修订日期：2017-02-10
作者简介：刘井江（1974-），男，选煤工程师，龙煤集团七煤
公司七台河洗煤广生产厂长。
万方数据
业发展趋势是重介旋流器向大型化方向发展，煤泥浮选则向着提高煤泥选择性的方向努力[2]。随着重介旋流器不断向大型化发展，其分选粒度下限不断上升，在浮选中具有更高选择性的旋流微泡浮选柱的广泛应用使得浮选粒度上限下降，最终导致介于重介旋流器有效分选下限和浮选