Solid material comminution or disintegration – Apparatus – With separation or classification of material
Patent
1980-01-02
1982-09-07
Rosenbaum, Mark
Solid material comminution or disintegration
Apparatus
With separation or classification of material
241284, 241285R, B02C 1900
Patent
active
043479863
ABSTRACT:
There is disclosed a self-attritioning pulverizer incorporating a cylindrical shell having a reduced-in-diameter, cylindrical sizing screen assembly telescoped concentrically thereinto and separated therefrom by an annular collection chamber. Mounted on the interior of such screen assembly are a plurality of equally spaced, axially extending radial holding baffles terminating at their radially inner sides in blunt edges cooperating together to form the radial interior of an annular holding chamber. A four bladed cruciform impeller is rotatably mounted from one end wall of such cylinder in coaxial relationship with such cylindrical shell with the radially outer extremities of such blades terminating in blunt edges spaced, as such impeller is rotated past such baffles, a radial distance from the edges of such baffles at least as great as the minimum cross-sectional dimension of unreduced chunks to be pulverized thereby. Conveniently, an end door is hingedly mounted to the opposite end of such shell and has a hopper mounted thereon for receiving such unreduced chunks and feeding them into the impeller. In the preferred embodiment, radial lands are provided on the interior of the door and end wall to maintain chunks revolved about by the impeller spaced from such walls to inhibit wearing thereof.
REFERENCES:
patent: 2637502 (1953-05-01), Bond
patent: 2992784 (1961-07-01), Behnke et al.
patent: 3995814 (1976-12-01), Alberts
patent: 4060204 (1977-11-01), Williford
patent: 4226375 (1980-10-01), Cameron
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