WINCH TYPE BAR SCREEN

摘要

PURPOSE: A winch bar screen for wastewater treatment is provided, which can dig out sludge collected between bars of fixed screen by rakes fixed on bucket screen and scrape up sludge piled at the lowermost basin under the fixed screen by bucket screen, the bucket screen being lifted or lowered by reciprocal rotation of driving device. CONSTITUTION: The system comprises the parts of an inclined fixed screen(2) installed at water passage in direction of raw water flow; a bucket screen(3) that moves on the fixed screen(2) for scrapping sludge collected to fixed screen(2) to upper part; and a driving device(4) that lifts bucket screen on rail(7) of fixed screen(2) by winch wire(20) driven by winch(18).