Center feed material grinding mill

Details Center feed material grinding mill Center feed material grinding mill

B - Operations, Transporting

02

C

241/22

B02C 13/286 (2006.01)

Patent

CA 1235678

ABSTRACT A material grinding mill having a grinding chamber with a closed bottom, a material feed disposed to force ground material to move axially of the rotary grinder to an outlet at one or both sides of the grinding chamber, a scroll liner directed to lie ad- jacent the path of rotation of the grinder and form a venturi throat inlet to the grinding chamber, a supply of drying medium admitted to the mill to be sucked through the venturi throat for drying the material during the grinding while moving it through the side outlet, and a classifier for returning oversize ma- terial to the grinding chamber through the venturi throat. The grinding mill allows the incoming ma- terial to enter the grinding chamber substantially centrally so as to push the material laterally along the rotor in the grinding chamber toward side exits, and at the same time provides for a better usage of the drying medium in the grinding chamber.

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