煤炭工程 ›› 2013, Vol. 45 ›› Issue (9): 112-115.doi: 10.11799/ce201309038

• 研究探讨 • 上一篇    下一篇

宽粒级煤泥浮选机浮选试验研究

王泓皓   

  1. 山西省太原理工大学矿业工程学院矿物加工系
  • 收稿日期:2012-12-25 修回日期:2013-01-17 出版日期:2013-09-10 发布日期:2013-09-10
  • 通讯作者: 王泓皓 E-mail:375733832@qq.com

Experimental Research on Wide-Size-Fraction Slime Flotation Machine

  • Received:2012-12-25 Revised:2013-01-17 Online:2013-09-10 Published:2013-09-10

摘要:

通过对常规浮选机浮选入料中粗颗粒分选存在问题的分析,结合粗、细粒矿物浮选的特点,自行设计了宽粒级煤泥浮选机,并组建了宽粒级煤泥浮选试验系统,对屯兰选煤厂-1mm煤泥进行了浮选试验研究。结果表明,该浮选机在对1mm以下煤泥浮选时,浮选尾煤灰分可达55%以上,1-0.125mm粒级煤数量效率和可燃体回收率可达91.05%和84.81%,由此证明该宽粒级煤泥浮选机可对1mm以下煤泥实现有效分选。

关键词: 浮选, 宽粒级煤泥, 流态化, 粗颗粒

Abstract:

A wide-size-fraction coal flotation machine was designed and the laboratory test system was built through the analysis of the problems of conventional flotation machine existed in coarse particles separation and combining the separation feature of coarse and fine coal slimes. The system was employed to the floatation experiment on the -1mm slime in Tunlan Coal Preparation Plant. The results show that, the ash content of tailings with -1mm can reach up to 55 percent and the quantitative index of flotation concentrate and combustible mass recovery rate of 1-0.125mm wide-size-fraction slime can reach up to 91.05 percent and 84.81 percent respectively,which demonstrates that this wide-size-fraction coal flotation machine can be used to separate -1mm level of coal slime effectively.

Key words: floatation, wide-size-fraction coal slimes, fluidization, coarse particle