Patent ID: 6299081
Filing Date: 2001-10-09
Classification: B02C

Abstract:
A tube mill having a rotatably mounted mill tube with a grinding stock input end with at least one inlet opening and a ground stock delivery end with at least one outlet opening for discharging fine material and oversized material comprising:a drop-delivery housing comprising at least two spaced apart stationary side faces and a conveyor ring extending between said side faces to enclose an intermediate space forming a sifting space, said conveyor ring rotatably mounted relative to said side faces,a drive mechanism engaging said conveyor ring to rotate it relative to said side faces, said mill tube extending into said intermediate space through one of said side faces such that said outlet opening in said grinding stock delivery end is positioned within said intermediate space,a sifting air intake opening extending through at least one of said side faces into said intermediate space,a delivery exit opening for sifting air and sifted fine material in at least one of said two side faces from said intermediate space, anda delivery exit opening for sifted oversized material in at least one of said two side faces from said intermediate space.