Jiangsu Sanhe Environmental Protection Group Co., Ltd.
Jiangsu Sanhe Environmental Protection Group Co., Ltd.
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Peripheral Drive Sludge Scraper
Product Overview
The Peripheral Drive Sludge Scraper is a continuous sludge and scum removal system used in large circular sedimentation tanks.
Driven from the periphery around a central column, the scraper arms rotate slowly to collect sludge from the bottom and skim scum from the surface.
It features reliable performance, low maintenance, and is widely used in municipal and industrial wastewater treatment applications.
Working Principle
The scraper consists of a working bridge, central column, drive unit, scraper arms, and scum removal system.
The drive motor and gearbox rotate the arms around the tank center. The bottom scrapers push settled sludge to the central hopper, while surface skimmers move scum to the scum trough.
Sludge is discharged through a pipe and scum removed by overflow or pumping, ensuring continuous sedimentation and automatic sludge removal.
Main Components
Central Column: Supports rotating parts; stainless steel or coated carbon steel.
Bridge: Connects tank periphery and center, carrying the drive assembly.
Drive Unit: Integrated motor, reducer, and wheel; provides stable transmission.
Scraper Arm & Blade: Push sludge to the central hopper.
Scum Scraper: Collects and directs surface scum.
Sludge Hopper & Pipe: Concentrated sludge discharge outlet.
Control System: PLC-based control with torque monitoring and protection.
Features
Simple structure and smooth operation;
Optional dual-drive for large tanks;
Automatic torque protection against overload;
Corrosion-resistant materials for various water conditions;
Compatible with pumping or sludge discharge systems for full automation.
Applications
Primary and secondary clarifiers in municipal wastewater plants
Industrial wastewater sedimentation tanks
Clarification tanks in water purification plants
Sedimentation systems in power, chemical, and cooling water facilities
Optional Configurations
Anti-corrosion coating or stainless steel structure
Automatic control with PLC
Scum skimming device