Dry cleaning solvent filtration and steam distillation recovery

Details Dry cleaning solvent filtration and steam distillation recovery Dry cleaning solvent filtration and steam distillation recovery

1990-04-20

1991-12-03

Bascomb, Jr., Wilbur

Distillation: apparatus

Apparatus

Systems

202176, 202204, 202234, 2022671, 68 18C, 68 18F, 134109, 203 47, 203 86, 203 95, 210167, 210295, 2103601, 210506, B01D 338, B01D 2700, D06F 4308

Patent

active

050697552

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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patent: 4251239 (1981-02-01), Clyde et al.
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patent: 4581133 (1986-04-01), Tomes

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