UNIT FOR MECHANICAL PURIFICATION OF SEWAGE WATER Russian patent published in 2002 - IPC

FIELD: purification of sewage water. SUBSTANCE: unit has casing, device for withdrawal and filtration of rejects, mechanism for cleaning of unit working surfaces in the course of operation. Device for withdrawal and filtration is made in the form of drum with catching hooks installed on its cylindrical surface along its element. Catching hook has working part directed inside drum and part protruding outside. Attached to casing upper part, its top point, along drum element are shaker and brush. They are installed on one lever with common axle of oscillation and freely lying on catching hook protruding parts. Installed inside drum are troughs for collecting and removal of withdrawn and filtered rejects. Unit is applicable in removal (catching, filtration and withdrawal) of solid impurities from sewage water at sewage purification works. EFFECT: higher power characteristics, simple in design and reliable in operation. 2 cl, 4 dwg