TUBE MILL Russian patent published in 2015 - IPC B02C17/04 

FIELD: machine building.

SUBSTANCE: mill comprises drum (1), feed (2), discharge (3) trunnions, and a drive. Drum in form of tunnel with broken spiral shape comprises sections of triangular passage cross-section. The tunnel is made with intermittent broken spiral lines of zig-zag shape along its perimeter. Each section is made out of rectangle and two similar trapezoids. Bottom bases of the trapezoids are equal to side of the rectangle. Top bases of the trapezoids are equal to each other. The sides of the trapezoids are equal to rest two sides of the rectangle with sections creation along ends. The sections are inclined to different sides and to axis of section of the end holes in form of equiangular triangles. Each consequent section is turned with reference to the previous section to an angle corresponding to turn of the section to one its side, with assurance of inclination of section axes to each other from the condition of their intersection. The drum is installed on the frame (9) with pneumatic bottles (10, 11) of the mill bedplate (12).

EFFECT: expansion of the process abilities due to increased intensity of the particle interaction of the ground material.

9 dwg