Optimization and transformation practice of heavy medium separation system in Gongwusu Coal Mine Coal Preparation Plant
Aiming at the problem of"one dragging two"of the main selection mixing pump and the lack of a central steady flow cylinder in the main re-selection mixing tank in the second-stage production system of the Gongwusu Coal Preparation Plant,the heavy-medium separation system was designed and reformed.The original design of two FZJ900 main selection cyclones was optimized and transformed into one FZJ1200 cyclone,and the structural size of the cyclones was optimized and adjusted;according to the structure of the main re-selection mixing tank,the central flow stabilization cylinder was designed and manufactured to improve the weight The separation effect of the hydrocyclone is that after the transformation,the fine coal in the medium coal belt is reduced by 4.2％,and the medium coal in the gangue belt is reduced by 0.2％.
dense medium cyclonemain re-selection mixing tankcenter steady flow tankmiddle coal belt finegangue belt middle coal
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