Granulating, separating and classifying rubber tire materials

Details Granulating, separating and classifying rubber tire materials Granulating, separating and classifying rubber tire materials

1992-08-21

1994-04-05

Phan, Hien H.

Solid material comminution or disintegration

Processes

With application of fluid or lubricant material

241 24, 241 79001, 241DIG31, 209 27, B07B 402, B02C 2310

Patent

active

052997448

ABSTRACT:
A rubber tire component reclamation technique which provides tire rubber fragments classified according to size. Preferred apparatus for rubber tire component reclamation includes a feed hopper for receiving pieces of discarded tires, a granulating chamber coupled to the feed hopper for cutting the received pieces into smaller fragments, and an exit chute providing an output from the granulating chamber through which tire fragments fall. An air flow is induced upwardly through the exit chute to urge the less dense components such as yarn and fabric upwardly against gravity and out of the upper portion of the chute. The air flow is of sufficient force to prevent commingling and compaction of the less dense components with the remaining components of the tire fragments. A magnetized drum is located near the lower end of the exit chute for segregating the ferromagnetic components of the tire fragments. A fragment classifier receives the fragments which are not trapped by the magnetic drum and segregates those received fragments into at least two, and preferably three, separate groups according to fragment size.

REFERENCES:
patent: 2200472 (1940-05-01), Erdmann
patent: 2462645 (1949-02-01), Knowland
patent: 3004721 (1961-10-01), Notzold
patent: 3364526 (1968-01-01), Varady et al.
patent: 3836085 (1974-09-01), Brown
patent: 3856217 (1974-12-01), Brewer
patent: 4113186 (1978-09-01), Smith
patent: 4618415 (1986-10-01), Vecchio et al.
patent: 4726530 (1988-02-01), Miller et al.

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