This article elaborates on the process and characteristics of using double section fine screen gap(0.2 mm)arc-shaped screen depth classification to recover coarse and fine coal slurry at Guoneng Mengxi Qipanjing Coal Preparation Plant,and verifies its practical application effect through single machine experiments.The results show that the comprehensive screening efficiency of the double stage arc-shaped screen for coarse and clean coal slurry is 83.66％,with a distribution particle size of 0.146 mm and an average possible deviation of only 0.027 mm.This can ensure that the coarse and clean coal slurry with qualified ash content is effectively recovered,avoiding its loss in the flotation system and tailings.
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