Study and application of flotation feed desliming pond in Panyi colliery coal preparation plant

To solve the problem of high fine slime content and ash content in flotation feed in Panyi coal preparation plant,take desliming for flotation feed by desliming pond before separation.This paper briefly describes applicability of desliming flotation process,and the structure and working principle of flotation feed desliming pond.The test result shows that the fine slime yield in under flow of desliming pond has negative correlation with separation perfection index.When the fine slime content decreased 1 present,the perfection index increased 0.73 present;ash content of feed of desliming pond is lower,should limited the flow rate of under flow about 400 m³/h,especially when the ash content higher than 40%.