Solid material comminution or disintegration – Processes – Selective or differential comminution of mixed or bonded solids
Patent
1994-08-03
1996-06-11
Han, Frances
Solid material comminution or disintegration
Processes
Selective or differential comminution of mixed or bonded solids
241 2415, 241 29, 241 76, 241 99, 2411522, 241 2422, 241 243, B02C 2314
Patent
active
055248373
ABSTRACT:
The apparatus consists of a glass breaker alone or a glass granulator alone or combinations of the two machines along with a screen/sieve and cullet mover mechanism to sort or size the glass particles for further reprocessing or for use an end product of the glass processing apparatus. The glass breaker breaks the glass objects using a rotating shaft with breaker bars attached thereto. The glass containers are shattered by impact with radially extending members of a rotating shaft and by causing the glass to impact a breaker plate within a breaking chamber. The granulator is used to process glass cullet to create glass particles of selected size for the purpose of recycling. As a result of the granulation of the glass, it is possible to separate out or screen out the non-glass articles such as caps, rings, paper etc. Particularly, the granulator granulates the glass articles using at least one pair of synchronously counter-rotating rolls which, in the preferred embodiment, each has a plurality of granulating protrusions extending radially therefrom. The protrusions on each of the rolls, while the shafts are counter-rotating, interleave creating crushing or granulating zones wherein the glass objects, generally in the form of cullet, are crushed or comminuted. Particularly, the combination apparatus/machine first breaks up or shatters the glass articles in the glass breaker producing cullet. The cullet is sieved by the first sieving mechanism. That glass which is too large and the non-glass articles that do not sieve out are moved along and fed into the glass granulator. Glass particles may again be sieved by a second sieve/screen mechanism at the output of the granulator and non-glass articles are moved by the second sieving/moving mechanism to the output side of the sieve mechanism and off the end of the screen for disposal. Further, the instant glass processing apparatus, because of the very nature of the apparatus separates, but does not volumetrically reduce, non-glass articles thereby making the production of "clean" glass cullet (granules free of non-glass materials) a simple, much less expensive, and much more effective process, for the purpose of recycling.
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