Bowl type grinding mill

Details Bowl type grinding mill Bowl type grinding mill

1990-06-28

1991-11-26

Rosenbaum, Mark

Solid material comminution or disintegration

Apparatus

Including means applying fluid to material

241 791, 241119, 241121, 241285B, B02C 2330

Patent

active

050676628

ABSTRACT:
A grinding mill comprising a mill cylinder, a vertically mounted main shaft coupled at the lower end to a motor mounted on the lower side of the mill cylinder to be driven thereby and extending along the axis of the mill cylinder, and means mounted in descending order on the main shaft including a finished product conveying means, a classifying means, a grinding roller means and a decelerating means, a fixed sleeve fixed on the bottom of the mill cylinder to support a rotary bushing by means of bearings, a circular seat portion and a support seat fixed to the upper end of the rotary bushing, wherein the support seat is fixed with a grinding ring, a plurality of grinding rollers are rotatably provided inward of the grinding ring, a clearance is formed between the grinding ring and the grinding rollers, wherein a plurality of radially extended sweeping sheets are provided outside of the circular seat portion for sweeping the material fallen upon it away from the mill, and wherein an air inlet duct is provided at the inner surface of the mill cylinder for directing air into a grinding chamber.

REFERENCES:
patent: 2112359 (1938-03-01), Crites
patent: 2431746 (1947-12-01), Frangquist
patent: 2909330 (1959-10-01), Hardinge
patent: 3955766 (1976-05-01), Chang
patent: 4483487 (1984-11-01), Katsuta et al.
patent: 4682738 (1987-07-01), Chang

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