The process optimization of flotation and reselection at Haoxingyuan Coal Preparation Plant
Aiming at the problem of high ash content of flotation refined coal and low ash content of flotation tail coal about scarce coal such as 1/3 coking coal and fat coal in Haoxingyuan coal preparation plant,through the study of slime flotation test,combined with the comparison and selection of two kinds of re-flotation processes,clean coal re-flotation and tail coal re-flotation,the final flotation reform scheme was determined,and the process was transformed according to the actual production conditions of coal preparation plant.Finally,under the condition that the floatation tail coal meets the requirements of discharge and the floatation refined coal meets the requirements of the refined coal product index,part of the medium coal product was produced.It not only solves the problem of production,improves the recovery rate of cleaned coal,but also responds to the requirements of the state for the production of scarce coal washing.
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