... . The pallet knife system is under the grinding roller. With co-rotation of pallet knife and grinding roller, pallet knife ... the rang of 80-425meshes(even till 1000meshes), such as cement clinker (born), quartz, feldspar, calcite, dolomite, graphite, fluorite, wollastonite, ... full consideration in its designing process, and can match well with the desulphurizing equipments, it is able to improve the ...