Method and apparatus for crushing and classifying particulate ma

Details Method and apparatus for crushing and classifying particulate ma Method and apparatus for crushing and classifying particulate ma

1978-12-21

1980-12-23

Lazarus, Richard B.

Solid material comminution or disintegration

Processes

With application of fluid or lubricant material

241 79, 241103, 241109, B02C 1314, B02C 1508

Patent

active

042405866

ABSTRACT:
Friable particulate material is crushed and classified by apparatus comprising a grinder apparatus operatively positioned in the hollow interior of a relative rotationally mounted container. The grinder apparatus preferably comprises three rotationally mounted cone wheel roller members, each of which includes an outer grinding surface of predetermined contour. The outer grinding surface of each of the roller members maintains substantial conformance with a grinding face of the cylinder container from a center area to an outer edge of the grinding face as the roller members rotate. Feed particles of friable material and a continuous supply of fluid are introduced into the container and diffused substantially over the whole grinding face. Once the feed particles have been crushed to a predetermined size, the crushed particles are carried away from the grinding face by the flow of fluid exiting the hollow interior. The fluid velocity is controlled to remove a predetermined range of size of crushed particles from the grinding face and to separate or classify the removed crushed particles according to size and weight.

REFERENCES:
patent: 336030 (1886-02-01), Wiswell
patent: 519228 (1894-05-01), Bishop
patent: 561538 (1896-06-01), Carbart
patent: 822913 (1906-06-01), Boss
patent: 3510071 (1970-05-01), Whitney, Jr.
patent: 3951347 (1976-04-01), Tiggesbaumker et al.

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