... kind of sludge scraper consists of drive, scum launder, accessory bridge, rake skimmer, scum scraper, scum baffles, sludge scraper, ... bearing seat and influent well. 2. As the accessory bridge rotates, the scraper thereunder scrapes the sludge along the inclined ... consumption, and steady operation5. Mounted with a special wheel device for smooth circular trave Technical Data & Structure Diagram:To ...