Dry cleaning solvent filtration and recovery system with filter

Details Dry cleaning solvent filtration and recovery system with filter Dry cleaning solvent filtration and recovery system with filter

1988-11-18

1990-09-04

Bascomb, Wilbur

Distillation: apparatus

Apparatus

Systems

202170, 202202, 202204, 202234, 68 18R, 68 18F, 134 10, 134 12, 134109, 134110, 203 39, 203 97, 203DIG16, 210106, 210132, 210167, 210253, 210295, 210332, 210409, 210490, B01D 338, B01D 3600

Patent

active

049542222

ABSTRACT:
A dry cleaning solvent recovery and filtering system includes a dry cleaning solvent tank containing solvent for use in a dry cleaning machine. A filtration path from the tank includes a centrifugal separator for removing coarse debris and a filter element for removing fine debris from the solvent fluid. The filter element includes a perforated metal cylinder, having an open mouth, with a Teflon.RTM. coated screen forming the interior debris collection surface. A rinsing spray nozzle situated at the mouth of the filter element directs a fluid spray under pressure against the collection surface in the same direction that debris contaminated solvent fluid flows therethrough. The pressure of the fluid spray is sufficient to dislodge fine debris adhered to the collection surface without forcing the debris into the perforations of the filter element.

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Solvent Recovery for Compliance with Federal Regulations, Larry J. Durr and Ellen Rawlins, reprinted from Plating and Surface Finishing, Oct. 1981.

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