Patent ID: 6405950
Filing Date: 2002-06-18
Classification: B02C

Abstract:
A hammermill, comprising:(a) a housing having an inlet, an outlet, and a plurality of side walls; (b) a rotor mounted within the housing on a shaft for rotation about an axis; (c) a classification grid within the housing substantially surrounding the rotor and defining an inner grinding chamber and an outer collection zone; (d) a plurality of impact members attached to and disposed longitudinally along the rotor within the inner grinding chamber; (e) a diverging duct mounted on one of the housing side walls, the diverging duct having a discharge end and an entrance end communicating with the outer collection zone; and (f) a blower communicating with the housing outlet and the diverging duct discharge end to establish negative pressure within the housing and facilitate continuous flow of ground material out of the hammermill.