COAL ENGINEERING ›› 2013, Vol. 45 ›› Issue (9): 112-115.doi: 10.11799/ce201309038

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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

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