1. Coal production will be adjusted for the commodity coal slime product, and can be used with coal or coal sales, make slime from coal preparation waste or by-product coal prices for the commodity price appreciation, become a new economic growth points; 2, to solve due to seasonal changes make slime sales are sluggish, or disposal difficulties affecting the production of passive situation; 3, can ultimately improve the Coal Preparation Process, closed water circuit to be implemented by all the recycling of slime second leap, to resolve open dumps causing slime product mining environment (water loss, the case of wind blowing) secondary pollution problems, significant environmental benefits; 4, the slime as a waste product of coal preparation plant, from environmental protection management perspective, can reduce the waste footprint, reduce corporate sewage charges, thereby increasing the economic efficiency of enterprises.