DEVICE FOR CLEANING WASTE WATER AND OTHER LIQUIDS Russian patent published in 1997 - IPC

FIELD: waste water cleaning devices. SUBSTANCE: device includes filter with housing, vertical filter element, distributor, sediment collecting hopper and scraper with shaft and drive. Filter element is made in form of perforated drum filled with filtering material. In center of this drum screw swirler is secured on shaft with cross-piece; scraper secured on body of swirler is made in form of pipes located oppositely and provided with longitudinal slots or half-pipes. Pipes or half-pipes are provided with controllers of working layer on filtering surface; controllers are provided with cutting appliance in head portion (in way of rotation of scraper) and pressing appliance in tail portion. Lower portion of filter housing is connected with sediment collecting hopper. EFFECT: enhanced efficiency. 2 cl, 1 dwg