Scrap shredding apparatus having clearing rings and method...

Details Scrap shredding apparatus having clearing rings and method... Scrap shredding apparatus having clearing rings and method...

B - Operations, Transporting

02

C

241/122

B02C 7/04 (2006.01)

Patent

CA 1220461

Abstract of the Disclosure Apparatus for comminuting scrap materials, par- ticularly fiber-reinforced resilient materials such as scrap tires, includes a pair of generally cylindrical cutter rolls mounted for rotation with parallel cutter discs of each roll intermeshed closely between cutter discs of the cutter roll. The cutter discs on each cutter roll are of a series of thicknesses, and each cutter disc includes a plurality of cutter segments attached about its periphery. Cutter segments are reversible end-for-end to present a sharp edge for drawing scrap material between the intermeshed cutter rolls. A method of sharpening the apparatus includes removing worn cutter segments from the cutter discs, grinding lateral surfaces of each cutter segment, and thereafter fastening the cutter segments on a next thinner one of the cutter discs. Annular clearing rings surround the shaft of each cutter roll between neighboring cutter discs of that cutter roll. The clearing rings are free to move radially and have a large enough size to force cut pieces of scrap material radially outward from between the neighboring cutter discs.

414538

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