Solid material comminution or disintegration – Apparatus – With separation or classification of material
Patent
1988-04-11
1990-01-09
Gorski, Joseph M.
Solid material comminution or disintegration
Apparatus
With separation or classification of material
209666, 241188R, 241245, 241253, 241257R, 241261, B02C 2310
Patent
active
048922587
ABSTRACT:
An improved comminuting device for pulverizing solid material includes a comminuting chamber and a discharge chamber adjacent the comminuting chamber. A screening assembly is located at the interface between the comminuting chamber and the discharge chamber and regulates the size of particles permitted to pass from the comminuting chamber into the discharge chamber. The screening assembly is adjustable to selectively vary the maximum size particles permitted to pass into the discharge chamber. The comminuting chamber is defined by a series of rolls having abrading protrusions on their outer surfaces. In one embodiment of the invention, the screening assembly includes a plurality of planar flails swingably mounted at a first end on a first surface of a disk rotatably mounted in the housing for rotaton in a horizontal plane. The disk forms the interface between the comminuting chamber and the discharge chamber. The flails extend beyond the periphery of the disk and spaces between the ends of the flails define openings through which the comminuted particles pass to the discharge chamber. By selectively limiting the degree of swinging movement of the flails, the size of the openings is limited so as to determine the maximum particle size that will pass into the discharge chamber. In another embodiment, the disk has a series of elongate fingers mounted on it. Each of the fingers is radially movable to vary the spacing between the end of the finger and the outer surface of the rolls.
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