Solid material comminution or disintegration – Apparatus – With separation or classification of material
Patent
1974-11-01
1976-06-29
Custer, Jr., Granville Y.
Solid material comminution or disintegration
Apparatus
With separation or classification of material
241 861, B02C 1306
Patent
active
039661270
ABSTRACT:
Method and apparatus which combines centrifugal and rotary-abrasive forces for rupturing air-carried granular material, such as cereal grain, which is then reduced to a desired (variable) screen size or powder. Such product may be as finely pulverized as flour or may simply consist of mixed grains which are reduced to a uniform particle size suitable for pelletized animal feed. Inorganic material such as particles of talc, clay, kaolins, earth pigments, etc. can be similarly processed. Power driven, hollow, cylindrical rotor has circumferential series of axially directed, radial outlets which permit easy passage therethrough of the axial granular flowstream to a surrounding channel or raceway formed by a tubular screen spaced radially outward from the rotor outlets. Preferably the fixed screen is interchangeable with others of different mesh and is disposed eccentric to the rotor so as to define a closed, fixed path for the ruptured granules which converges lengthwise so as to progressively constrict the rotating body of ruptured particles against the screen face and thus increase its abrasive action. The inner face of the hollow rotor has inward projecting fins or baffles disposed adjacent the following edges of the outlets, thus producing or augmenting the centrifugal outflow.
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Custer, Jr. Granville Y.
Johnson Howard L.
Pytlewski Raymond
Pytlewski Theodore
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