Grinding method and apparatus

Details Grinding method and apparatus Grinding method and apparatus

1991-09-11

1994-05-24

Watts, Douglas D.

Solid material comminution or disintegration

Apparatus

Loose grinding body comminutor

511642, 366216, 494 33, B02C 1714

Patent

active

053141253

ABSTRACT:
A grinding method is provided which is capable of uniformly and precisely grinding objects for a short time, softening shocks produced when the rotation of a grinding barrel is changed between the forward direction and the backward direction to thereby eliminate bruises on the surface of grounded objects, coping with grinding for a large number of objects to be ground in a small quantity or a heavy-weight or a large-size object to be ground, and preventing contacts and collisions between objects to be ground. The grinding method comprises the steps of rotatably mounting not less than one grinding barrels at locations away from the central axis of a rotary drum, enclosing a grinding material and objects to be ground in the grinding barrels, rotating the grinding barrels in the directions identical to and opposite to the direction in which the rotary drum is rotated, and grinding the objects to be ground. An grinding apparatus for implementing the above-mentioned method is also provided.

REFERENCES:
patent: 1491601 (1924-04-01), Fuller
patent: 2937814 (1960-03-01), Joisel
patent: 3562962 (1971-02-01), Ohno

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