Method and apparatus for recycling gypsum board

B - Operations – Transporting – 02 – C

Patent

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Details

B02C 4/02 (2006.01) B02C 17/14 (2006.01) B02C 21/00 (2006.01) B02C 23/08 (2006.01) B02C 23/10 (2006.01) B03B 9/06 (2006.01) B07B 1/12 (2006.01) B07B 1/22 (2006.01) B07B 13/16 (2006.01)

Patent

CA 2369097

A method of recycling gypsum board having paper backing which includes compressing the gypsum board sufficiently to shatter the gypsum and separate, at least partially, the paper backing, collecting the compressed gypsum board on a spill grate having a plurality of spaced apart rods, sweeping the collected gypsum board with a plurality of spaced apart bars passing between rods of the spill grate so that the paper and gypsum are swept down between the rods. The spacing of the rods is such that there is sufficient interaction with the gypsum board to loosen the gypsum from the paper backing, and separate the gypsum from the paper.

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