... The pallet knife system is under the grinding roller. With co-rotation of pallet knife and grinding roller, pallet ... ), such as cement clinker (born), quartz, feldspar, calcite, dolomite, graphite, fluorite, wollastonite, phosphate rock, calcium magnesium phosphate, coal, gangue, ... consideration in its designing process, and can match well with the desulphurizing equipments, it is able to improve the ...