Solid material comminution or disintegration – Processes – With application of fluid or lubricant material
Patent
1992-10-09
1994-08-16
Lithgow, Thomas M.
Solid material comminution or disintegration
Processes
With application of fluid or lubricant material
241 20, 241 24, 241DIG38, 209164, 209173, 208425, 208424, 208 39, B03B 100, B03D 102, B02C 1912, B02C 2336
Patent
active
053379659
ABSTRACT:
A method and apparatus for recycling asphalt based roofing material which typically comprises a body of asphalt and fiber, with aggregate on and adhered to the asphalt. The asphalt bodies, with aggregate, are subjected to action to separate or disengage the aggregate from the asphalt body without substantially reducing the size of the aggregate. Disengagement is effected by causing asphalt bodies with aggregate to impact on each other. Disengagement may be effected by placing asphalt bodies with aggregate in water to form in a slurry, which is agitated, as by an impeller. The asphalt bodies float to the top of the liquid, which is a non-solvent for asphalt, and are removed and dewatered; the aggregate of undiminished size is separately recovered.
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Finoll Recycling Ltd.
Lavine Irvin A.
Lithgow Thomas M.
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