IMPACT-CENTRIFUGAL MILL Russian patent published in 2015 - IPC B02C13/22 

FIELD: construction.

SUBSTANCE: impact-centrifugal mill includes stepped housing 3, stepped rotor 4 with beaters 5, which is horizontally located in the housing, and loading 1 and unloading 2 branch pipes. Every next step in stepped housing 3 in the material movement direction has larger diameter; with that, inner surface of stepped housing 3 at each step is made in a vertical section in the form of spiral-shaped segments in four sectors of a circle. Curvature radius of spiral-shaped segments is increased in each segment opposite to rotation of stepped rotor 4. Minimum and maximum clearances between the inner surface of stepped housing 3 at each step and impact beaters 5 of stepped rotor 4 are equal to d_max and 2-3 d_max respectively, where d_max - maximum size of crushed particles.

EFFECT: improving efficiency of a crushing process.

2 dwg