The Peripheral Drive Sludge Scraper is a continuous sludge and scum removal system designed for large circular sedimentation tanks. Driven from the periphery around a central column, the scraper arms rotate slowly to efficiently collect sludge from the bottom and skim scum from the surface. This system offers reliable performance with low maintenance requirements, making it ideal for municipal and industrial wastewater treatment applications.

The scraper system consists of a working bridge, central column, drive unit, scraper arms, and scum removal components. The drive motor and gearbox rotate the arms around the tank center while bottom scrapers push settled sludge to the central hopper. Surface skimmers simultaneously move scum to the scum trough. Sludge is discharged through a pipe system and scum is removed by overflow or pumping, ensuring continuous sedimentation and automatic sludge removal.

• Central Column: Supports rotating parts; constructed from stainless steel or coated carbon steel
• Bridge: Connects tank periphery and center, carrying the drive assembly
• Drive Unit: Integrated motor, reducer, and wheel system providing stable transmission
• Scraper Arm & Blade: Engineered to efficiently push sludge to the central hopper
• Scum Scraper: Specialized component for collecting and directing surface scum
• Sludge Hopper & Pipe: Concentrated sludge discharge outlet system
• Control System: PLC-based control with torque monitoring and protection features

• Simple structure with smooth operation
• Optional dual-drive configuration for large tanks
• Automatic torque protection against overload conditions
• Corrosion-resistant materials suitable for various water conditions
• Compatible with pumping or sludge discharge systems for full automation

• Primary and secondary clarifiers in municipal wastewater treatment plants
• Industrial wastewater sedimentation tanks
• Clarification tanks in water purification plants
• Sedimentation systems in power, chemical, and cooling water facilities

• Anti-corrosion coating or stainless steel structure
• Automatic control with PLC system
• Scum skimming device