traction type sludge scraping equipment Non-Metallic Sludge Scrapers for Corrosive Media | 18-Yr Expertise

Traction-type sludge scraping equipment is a specific and highly reliable subclass of flying scrapers where the motive power is provided by a drive wheel (or wheels) that engages with a fixed rack installed along the side of the sedimentation tank. This system contrasts with chain-driven systems that use submerged chains for propulsion. The key components include a motor and gear reducer mounted on the moving bridge, which turns a pinion gear that meshes with the stationary rack. This provides a positive, non-slip drive that is exceptionally efficient and powerful. The primary advantage of the traction drive is its simplicity and the fact that the driving components are located entirely above the water line. This makes them easily accessible for inspection and maintenance without the need for tank dewatering. It also eliminates the common challenges associated with submerged chains, such as corrosion, elongation, and the need for frequent adjustment and lubrication. The traction system is capable of generating very high pulling forces, making it ideal for long tanks, heavy sludge loads, or applications with inclines. The system's movement is smooth and precise, controlled by a variable frequency drive (VFD) for gentle acceleration and deceleration. A typical application is in a large primary sedimentation tank at a major wastewater treatment works, where the reliability and minimal maintenance of the traction drive are paramount for continuous plant operation. The structural bridge of the scraper is designed to be rigid to ensure perfect alignment between the pinion and rack under all load conditions. For engineers seeking a robust, low-maintenance, and highly reliable drive solution for a rectangular scraper system, the traction type is often the preferred choice. For detailed technical literature and pricing on our traction-type sludge scraping systems, please do not hesitate to contact us directly.