CPC B02C 7/02 (2013.01) [B02C 13/14 (2013.01); B02C 13/18 (2013.01); B02C 23/08 (2013.01); B02C 23/10 (2013.01); B09B 3/35 (2022.01)] | 30 Claims |
1. A process for treating construction and/or demolition (C&D) debris comprising:
providing a C&D fines stream comprising a frangible material and a ductile material;
providing a kinetic pulverizer comprising a pulverizing rotor assembly disposed within an interior chamber, wherein the pulverizing rotor assembly is configured to rotate to form vortices that subjects the C&D fines stream to self-collisions within the interior chamber;
subjecting the C&D fines streams to a kinetic pulverization stage wherein the C&D fines stream is fed into the kinetic pulverizer to produce a pulverized material comprising a size-reduced fraction derived from the frangible material and an oversized fraction derived from the ductile material;
withdrawing the pulverized material from the kinetic pulverizer; and
subjecting the pulverized material to a separation stage to produce a size-reduced stream and an oversized stream,
wherein the C&D fines stream comprises gypsum and wherein the kinetic pulverizer is operated such that individual particles of the size-reduced fraction are less than 2 mm in diameter.
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