Solid material comminution or disintegration – Apparatus – Loose grinding body comminutor
Patent
1974-03-21
1976-01-20
Lake, Roy
Solid material comminution or disintegration
Apparatus
Loose grinding body comminutor
241175, 241201, B02C 400
Patent
active
039333167
ABSTRACT:
A mill for crushing or comminuting material such as mineral ores. The mill includes a cradle mounted on fulcrum pins carried by a support frame. An upwardly concave arcuate wall of the cradle carries a relatively large diameter roll member having a hollow interior in which a second smaller diameter hollow roll member is carried. Slots are formed in the first roll member to comminuciate material into and from the interior thereof, and a slot may also be formed in the second roll member to communicate material into and from its interior. The lower portion of the cradle is supported in offset relationship from the fulcrum pins by means of compressions springs mounted on the frame. An eccentric drive motor coupled through a connecting rod with the cradle operates to oscillate the cradle in resonance about the fulcrum pins whereby the roll members are moved in a manner to comminute material fed through an inlet zone into the cradle, and to expel the material through a vertical screen disposed across a discharge zone at a side of the cradle. The amplitude of stroke of the connecting rod is effective to momentarily lift the roll members on each stroke in a manner causing the roll members to rotate or gyrate relative to the cradle whereby oversize material is recycled by the slots for subsequent comminution.
REFERENCES:
patent: 378450 (1888-02-01), Kendall
patent: 909562 (1909-01-01), Donald
patent: 2192549 (1940-03-01), Hadsel
patent: 3184171 (1965-05-01), Daman
Desmond E. F.
Lake Roy
Resource Products, Inc.
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