Method and apparatus for cryogenic grinding

Details Method and apparatus for cryogenic grinding Method and apparatus for cryogenic grinding

1979-05-31

1981-06-16

Rosenbaum, Mark

Solid material comminution or disintegration

Processes

With application of fluid or lubricant material

241 23, 241 62, 241 65, 241189R, 241DIG37, B02C 13288

Patent

active

042732948

ABSTRACT:
The production rate of a conventional cryogenic grinding system incorporating an impact mill may be increased by (a) providing means to allow at least 70% of the embrittled material entering the mill to leave the mill before it passes the inlet; and (b) providing means to restrict the flow of the cold gas through the impact mill.
The product leaving the impact mill is screened and any oversize is preferably recycled to the impact mill.

REFERENCES:
patent: 2226330 (1940-12-01), Symons
patent: 2919862 (1960-01-01), Beike et al.
patent: 3608841 (1971-09-01), Wageneder
patent: 3659794 (1972-05-01), Hemesath
patent: 4030865 (1977-06-01), Kobayashi
patent: 4073443 (1978-02-01), Danioni

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