Process for low temperature comminution of scrap tires
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United States of America Patent
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-
Sep 5, 1989
Grant Date -
N/A
app pub date -
Oct 13, 1988
filing date -
Oct 13, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A process and apparatus for the low temperature comminution of tires includes the separation of the tires into tire portions including tread portions, sidewall portions and bead portions. The tire portions are cooled and crushed to form rubber granules and scrap material. The rubber granules are sorted from the scrap material in a process that includes the step of suspending the granules in a moving stream of low temperature gas. The stream of gas and rubber granules is impacted on a solid surface to grind the granules. The low temperature gas is preferably recycled and cooled by heat exchange with another circulating low temperature gas such as nitrogen.
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