Lackeby Peripheral driven scraper is a peripheral driven sludge scraper designed for installation in large circular tanks and designed with a rotating scraper bridge. Lackeby Peripheral driven scraper is manufactured in different versions but especially in the following two types;
– the excess sludge is sucked up into several tubes and transferred to the middle of the tank by hydrostatic pressure – a so-called suction sludge scraper.
– the sludge is transferred to the basin centre, where it is pumped away for further treatment. Normally the floating sludge is removed at the peripheric wall close to the outlet flume.
Benefits
Generally
Equipment for collection of biological sludge are based on a scraper arrangement which takes care of both sedimented bottom sludge and floating sludge. The Sludge scraper is designed with a peripherally driven rotating bridge with a scraper system which is mounted to the bridge. Lackeby Peripheral driven scraper is equipped with a rotating bridge, a centre layer and a solid rubber coated wheel which runs on the wall at the tank periphery. There are different types of scraping systems with several kinds of scraper blades and so-called logarithmic designed scrapers, in both cases, sludge is removed at the centre of the tank, but also there are various types of suction sludge scrapers.
Technical features
