Solid material comminution or disintegration – Apparatus – Cooperating comminuting surfaces
Patent
1989-01-18
1990-08-21
Rosenbaum, Mark
Solid material comminution or disintegration
Apparatus
Cooperating comminuting surfaces
241253, 241257R, 241261, B02C 402
Patent
active
049499157
ABSTRACT:
An impeller for use in a comminuter of the type having a cylindrical comminuting chamber formed by a circular arrangement of free rotating vertical cutting rolls includes a circular baseplate rotatably mounted at the lowermost end of the comminuting chamber for horizontal rotation. A first planar impeller blade is affixed at a first end to the plate. The blade extends upwardly at an acute angle from the plate and terminates at a second end closely adjacent the cutting rolls. The first blade is arranged to push the material in the bottom portion of the chamber in the direction of rotation of the baseplate and also to provide a component of force downward on the material. In one embodiment, a second impeller blade is affixed to the plate at a location diametrically opposed to the location of attachment of the first blade. The second blade extends upwardly at an acute angle from the plate and toward the cutter rolls in a direction opposite the first blade and also acts on the material in the comminuter in a downward direction. The blades each have a straight edge that is adjacent the other, but the blades are laterally offset so that they do not intersect. Each blade also has a curvilinear edge that is closely adjacent the cutter rolls. A motor is provided to rotate the impeller plate.
ComCorp, Inc.
Rosenbaum Mark
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