Self-cleaning filter

B - Operations – Transporting – 01 – D

Patent

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183/79

B01D 46/26 (2006.01)

Patent

CA 1267611

SELF-CLEANING FILTER Abstract of the Disclosure A self-cleaning apparatus comprising a rotary drum filter which collects foreign matter on one surface of the filter media thereof, and a cleaning apparatus that includes an endless belt having openings formed therein and arranged for axial movement along the surface of the filter media, the belt being mounted for such movement on a plenum chamber having an extending slot which communicates with the openings in the belt during such movement thereof whereby a vacuum imposed within the plenum chamber will act to remove foreign matter from the filter media surface. The belt includes retaining means which permit a variety of nozzle elements or imperforate plates to be mounted on the belt at its openings. The filter may be a rotary drum filter which rotates past the moving belt, or may be a bank of stationary flat filter elements with the moving belt being mounted on a carriage for additional movement within a spacing between each two adjacent filter elements with a control system being provided for automatically and continuously operating the cleaning belt so that it moves within the spacing of each two adjacent filter elements in a predetermined sequence so as to clean all of the filter elements in the bank.

497704

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