Gravity thickener IFCC

central drivefor sludge treatment

The sludge thickener with central drive is installed on medium and large size treatment plants if a substantial reduction of the percentage of water contained in the organic or inorganic sludge is desired. The thickener consists of a rotation unit with central drive, comprising an electric motor, a multistage reducing unit, baffle cylinder, shaft and scraping system consisting, in its lower part, of a couple of blade holder arms and, in its higher part, of a set of pickets. The multistage reducing unit is planetary type. The shaft is suspended in line with the unit. The sludge inlet is in the middle, but the flow is deviated by the baffle in order to optimise the thickening. The sludge scraper blades, made in standard section, remove the sludge accumulated on the bottom and collect it in a central pit wherefrom, by a piping, is conveyed to the outlet. Blades and pickets are adjustable.