Patent ID: 6415998
Filing Date: 2002-07-09
Classification: B02C

Abstract:
A circuit grinding apparatus having an internal working space with a high pressure roller mill for a pressure comminution of granular material and with at least one integrated sifter, in which both aggregates are arranged within two fixed side face walls, and with an interlying turnably borne material conveyor ring settable in rotation for an internal material circulation, in which a material inflow occurs from the side, through at least one in at least one housing face wall, and a material outflow likewise occurs laterally through at least one opening in at least one of the housing face walls, wherein the two fixed side face walls are combined, over a housing part that houses the rotatable material conveyor ring, into a housing tightly enclosing the entire working space of the circuit grinding apparatus, and the housing part has on its underside at least one grinding material leakage discharge element for the leakage from the working space.