Center Drive Sludge Scraper for Small & Medium Radial Flow Sedimentation Tanks

Center Drive Sludge Scraper for Small & Medium Radial Flow Sedimentation Tanks

Brief Description

ZXG Center Drive Sludge Scraper bears all loads of the whole machine at the center of the working bridge. The central driving unit drives the sludge scraping assembly to rotate. The directional scraper blades gather sludge at the tank bottom into the central sludge hopper, and the sludge is discharged out of the hopper by hydrostatic pressure. This equipment is applicable to circular radial flow sedimentation tanks with small and medium diameters.

Product Overview

1. Specification range: ZXG-5, ZXG-6, ZXG-8, ZXG-10, ZXG-12, ZXG-14, ZXG-16, matching tank diameters from Φ5m to Φ16m.

2. Main structure: Consists of working bridge, drive unit, transmission shaft, scraper arms and scraper blades.

3. Working bridge type: Full-bridge structure, available in carbon steel, stainless steel or concrete.

4. Drive configuration: Equipped with three-stage cycloidal pinwheel reducer, or combined helical gear reducer & worm gear reducer, to deliver stable output torque and controlled rotating speed.

5. Electrical control accessories: Adopts mechanical-electrical dual overload protection, supporting local on-site operation and remote control.

Working Principle

Wastewater flows evenly to the tank periphery through the central flow stabilizer. As the flow cross-section expands, the flow velocity drops, and suspended solids settle to the tank bottom under gravity. The central drive unit mounted on the top transmits power via the transmission shaft to drive the complete scraper assembly to rotate slowly. Straight scraper blades continuously push settled sludge to the central sludge hopper, and sludge is discharged by hydrostatic pressure. An underwater bearing and auxiliary scraper are installed at the bottom of the vertical shaft to prevent shaft deflection during operation and clear accumulated sludge in the central hopper. The clarified supernatant overflows and flows into the subsequent treatment units.

Product Parameters

Key Design & Performance Features

1. Full-bridge working frame with optional carbon steel, stainless steel and concrete materials.

2. Two optional reducer combinations to guarantee sufficient output torque and steady rotating speed.

3. Straight linear scraper blades with excellent sludge collection efficiency.

4. Underwater bearing and auxiliary scraper fitted at the shaft bottom to avoid shaft deflection and sludge accumulation in the central hopper.

5. Standard mechanical-electrical dual overload protection for safe and stable operation.

6. Dual control modes (local & remote) for simple operation, easy integration with automatic control systems.

7. Suitable for circular radial flow sedimentation tanks with diameters ranging from 5m to 16m, matching medium and small-scale sedimentation structures.

Applications

1. Municipal Water Supply Projects: Clarifiers, sedimentation tanks and micro-polluted surface water treatment structures of urban waterworks.

2. Municipal Sewage Treatment Projects: Primary sedimentation tanks and secondary sedimentation tanks of wastewater treatment plants.

3. Industrial Wastewater Treatment Projects: Sedimentation & clarification facilities for organic wastewater from light industry, chemical industry, papermaking, textile, agricultural and sideline food processing industries.

4. Decentralized Water Environment Treatment Facilities: Circular radial flow sedimentation tanks supporting village centralized sewage stations, scenic area service sewage stations and small integrated water treatment equipment.

Company Profile

WESUS is a leading manufacturer and total solution provider for advanced sewage and sludge treatment systems. Founded in Yixing, China in 2013, we offer reliable, cost-effective equipment and engineering services to global clients. Certified with ISO 9001, ISO 14001 and ISO 45001, we boast strong in-house R&D and manufacturing capabilities supported by a large production base, a professional technical team, patents and university cooperation. Our comprehensive product range includes screening, filtration, sludge dewatering, mixing, aeration and customized solutions. With end-to-end services from design to after-sales support and proven global project experience, we have earned wide recognition including national high-tech enterprise and 5-star after-sales certifications. Adhering to the philosophy of real innovation, excellence and win-win cooperation, WESUS is committed to providing smart, sustainable water treatment solutions for municipal and industrial clients worldwide.

FAQ

Q1: Are you a direct manufacturer? What certifications do you hold?
A: We are a direct manufacturer with our own production facilities and R&D team. We maintain full control over quality, cost, and delivery, and hold certifications including ISO 9001/14001 for our core products.

Q2: What types of collaboration models do you offer?
A: We provide flexible solutions:
- Equipment Supply: Standalone or packaged systems.
- Turnkey Solutions (EPC): Design, procurement, construction, and commissioning.
- Technical Cooperation: Process upgrades, operational maintenance support, and technical consulting.

Q3: How is after-sales service and support ensured?
A: We provide full lifecycle support:
- Warranty: 12–24 months on core equipment.
- Response: 7x24 remote support with fast on-site assistance when needed.
- Spare Parts: Genuine parts are stocked for long-term supply security.
- Maintenance: Annual Maintenance Contracts (AMC) are available to ensure long-term system efficiency.

Q4: What is your typical project execution process?
A: Our standardized workflow ensures efficiency and transparency:
1. Requirement Analysis → 2. Proposal & Quotation → 3. Design Finalization → 4. Production & Factory Testing → 5. Shipping & Installation → 6. Commissioning & Training → 7. After-sales Service.
Customer involvement is encouraged at key milestones.

Q5: Can you provide references or case studies?
A: We have extensive global project experience across municipal and various industrial sectors. We can provide detailed, anonymized case studies and client references upon request.

Q6: What are your payment terms and delivery lead times?
A: - Payment: We accept T/T and L/C, with standard industry progress payment terms.
- Lead Time: Standard equipment: 4–8 weeks. Large custom projects: 12–20 weeks.
A clear production schedule is provided upon contract signing.

Q7: How do you serve international clients?
A: We are experienced in international projects, arranging complete logistics (FOB, CIF, DDP, etc.) and providing full customs documentation. Our designs pre-consider compliance requirements in target markets.

Q8: Can you upgrade or retrofit existing systems?
A: Yes. We specialize in evaluating existing facilities and providing customized retrofit and expansion solutions to enhance performance and capacity with minimal investment and downtime.

Q9: How can we start a consultation?
A: Please contact our Sales Engineering team. To facilitate an efficient discussion, please have your treatment requirements, water quality data, and site information ready. We will provide a preliminary proposal and professional advice.