The Peripheral Transmission Sludge Scraper is mainly composed of a central rotating support, a main beam (truss beam, folded plate beam), a guide tube, a mud scraper, a current collecting device, a driving mechanism, etc. The raw water flows out from the bottom of the pool through the upper part of the central pier, and after being distributed through the diversion tube, it flows radially to the water collection tank around the pool. As the radial flow rate decreases, the suspended matter in the raw water is separated and settles at the bottom of the pool. The rotating truss takes the central support as the center of the circle, and the end wheel rotates along the circumference of the pool under the action of the driving device, driving the lower scraper to rotate slowly, scraping and collecting the mud into the central mud tank of the sedimentation tank, and relying on hydrostatic pressure or pump discharge Outside the pool, the upper scum is scraped simultaneously by the slag scraper to the slag discharge hopper for discharge.