Pneumatic grinding mill

Details Pneumatic grinding mill Pneumatic grinding mill

1989-11-29

1991-04-02

Rosenbaum, Mark

Solid material comminution or disintegration

Apparatus

Comminuting surface provided with openings to permit...

241154, 241188R, B02C 1328

Patent

active

050041673

ABSTRACT:
Milling apparatus for reducing the size of grain kernels or particles by impact with a solid surface as the grain is moved through the apparatus by an air stream created by rotation of a rotor within a stationary casing having an inlet opening at or near the center and an outlet opening at the outer periphery. The rotor comprises a circular disk having a series of elements affixed to a surface thereof in a circular configuration spaced outwardly from the center of the rotor. The elements comprise sections of hollow steel tubing of rectangular cross section or toothed blades so arranged that grain traveling radially outwardly from the inlet to the outlet opening of the casing impact with the elements with a force sufficient to break the grain. The particles may be passed through additional rotor stages, and the particle size or texture of the final product may be controlled by the speed of rotor rotation and the number of rotor stages through which the grain is passed.

REFERENCES:
patent: 769253 (1904-09-01), Cox
patent: 1752888 (1930-04-01), Cloud
patent: 2322306 (1943-06-01), McLaren
patent: 2609995 (1952-09-01), Klagsbrunn
patent: 2928616 (1960-03-01), Smith
patent: 3643879 (1972-02-01), Palyi
patent: 4520964 (1985-06-01), Rossler
patent: 4728047 (1988-03-01), Shagarova et al.

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