Method and apparatus for grinding granular materials

Details Method and apparatus for grinding granular materials Method and apparatus for grinding granular materials

1979-12-28

1983-01-25

Rosenbaum, Mark

Solid material comminution or disintegration

Processes

With application of fluid or lubricant material

241 24, 241 29, 241 30, 241 65, 241 72, 241 76, 241153, 241171, 241181, 241 80, 241 97, 241184, B02C 1706

Patent

active

043699260

ABSTRACT:
The invention relates to a method of and apparatus for dry grinding a granular material in a grinding tube mill (1) having a final grinding compartment (2) and one or more preceding grinding compartments (3) containing grinding bodies. The material, after having passed through the preceding compartment or compartments (3), is discharged through openings (6) in the mill (1) and is divided into a fine and a coarse fraction in a separator (9). The coarse fraction is returned to the preceding compartment or compartments (3), and the fine fraction is fed to the final compartment (2). The ground material is discharged by flowing over a dam ring (12) from the final compartment (2). Any grinding bodies carried with the overflow are separated by a sieving diaphragm (13) from the material and returned to the final compartment (2). The invention also relates to the granular material ground according to the method of the invention.

REFERENCES:
patent: 1217351 (1917-02-01), Schwarz
patent: 1748920 (1930-02-01), Newhouse
patent: 2160169 (1939-05-01), Pontoppidan
patent: 3144212 (1964-08-01), Klovers
patent: 3529781 (1970-09-01), Hastrup
patent: 3718286 (1973-02-01), Fagerholt
patent: 3877650 (1955-04-01), Cornford
patent: 4083500 (1978-04-01), Kartman

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