Apparatus for comminuting solid waste

Solid material comminution or disintegration – Apparatus – With automatic control

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Details

241222, 241236, 241295, 241DIG31, 241DIG38, B02C 1818

Patent

active

050487647

ABSTRACT:
Apparatus for crushing, grinding and shredding solid waste material in which two interacting stacks of cutting and shredding elements are positioned on two substantially parallel shafts and mounted transversely with respect to the directions of waste material fed into the apparatus. Cutting members on one stack interact with cutting members on the other stack. In each stack adjacent cutting members are spaced from each other by a spacer. The spacers in the apparatus differ from those used in prior comminutors of this type in that they also have cutter elements on their periphery and thereby serve as cutters or shredders as well as spacers. This double function of the spacers increases the efficiency of the comminuting apparatus. Most importantly there are cutting edges from the bottom to the top of each stack so that there are no intermediate elements on which strings or wires can be wrapped without encountering a cutting edge. While this is important in the shredding of relatively soft or easily shredded material, this is even more important in the comminuting of tires which have been reinforced with nylon cord or steel wire which have a tendency to wind around sections not having cutting edges. The process of effecting the difficult task of comminuting automobile and truck tires is also described.

REFERENCES:
patent: 4046324 (1977-09-01), Chambers
patent: 4165043 (1979-08-01), Higashi et al.
patent: 4709197 (1987-11-01), Goldhammer et al.

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