Method and apparatus for drying sludge

Details Method and apparatus for drying sludge Method and apparatus for drying sludge

C - Chemistry, Metallurgy

02

F

362/2, 362/60

C02F 11/12 (2006.01) B01D 29/09 (2006.01) B01D 37/00 (2006.01) B30B 5/00 (2006.01) B30B 9/02 (2006.01)

Patent

CA 1275509

METHOD AN APPARATUS FOR DRYING SLUDGE Abstract of the Disclosure A method and apparatus for dewatering and drying sludge. A pair of upper and lower members form a closed chamber into which sludge is poured. Sidewalls of the upper member are pressed against the lower member to seal the chamber. Compressed air supplied at a pressure P1 to a continuous groove in the lower edge of the sidewalls flows across the inside surfaces of the sidewalls and supple- ments air supplied to the chamber at a somewhat lower pressure level P2, the combined pressures P1 and P2 in said chamber forming liquid from said sludge through porous media in the bottom of the chamber. Air from the continuous groove aids in releasing the dried sludge from the chamber when the upper and lower members are sepa- rated.

507455

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