Such problems as large pressure difference and high pulverizing unit consumption of pulverizing system occurred in MPS medium speed roll mill.Thus

the inner cone

deflector baffle

part power recession cones

power outlet cone and air lock were replaced by the new type ones.The new type static coal separator adopted fixed blade separation structure and flow channel design

made the air and pulverized coal mixture entered the separator undergoing twice separation

thus the flow path and residence time of the mixture in the separator was shortened to the maximum extent.After the retrofitting

the average pulverizing unit consumption decreased

the average pressure difference dropped dramatically

both the coal fineness and uniformity were improved

the pressure in primary air piped reduced

and the fan invalidation problem was solved.The safety and economy of the pulverizing system was significantly enhanced.