Compact Structure Internally Fed Drum Screen Smooth Operation Highly Efficient Screening

Compact Structure Internally Fed Drum Screen Smooth Operation Highly Efficient Screening

Brief Description

This built-in drum screen features an integrated, compact design, suitable for the grading and purification of various industrial powders or granular materials. Its optimized internal drum structure ensures smooth operation and uniform screening, effectively reducing the risk of clogging. Widely used in building materials, chemical, and resource recycling industries, it helps production lines achieve efficient, clean, and continuous operation.

Product Overview

Our In-Channel Fine Screen, also known as an Internally Fed Drum Screen, is the advanced, compact choice for efficient fine screening in municipal and industrial wastewater treatment. Engineered for installations with space constraints or deep channels, it excels at removing fine solids, fibers, and suspended materials, providing superior protection for sensitive downstream processes like MBR systems, UV disinfection, or membrane filters.

Working Principle

Water enters the screen laterally through the inlet channel and flows into the rotating drum screen basket from the inside. The wastewater passes through the fine screen panels (typically 0.5-6 mm apertures), while retained solids are carried upward by the internal flow and the rotation of the drum. A series of cleaning nozzles (using filtered effluent or clean water) spray the captured solids into a central collection trough, which discharges them via a screw conveyor or similar mechanism. The clean filtrate exits through the open end of the drum.

Product Parameters

Key Design & Performance Features

*Compact, Space-Saving Design: The entire unit is installed directly within the channel, requiring minimal civil works and no additional footprint outside the channel. This makes it ideal for plant upgrades or locations with severe space limitations.
*Superior Fine Screening Efficiency: With screen apertures as fine as 0.5 mm, it achieves high removal rates of fine solids, hairs, fibers, and other small debris that traditional bar screens miss, significantly improving downstream process performance.
*Gentle Yet Effective Cleaning: The internally fed design and pressurized spray wash ensure thorough cleaning of the screen panels without aggressive brushing, reducing wear and tear and preventing blinding for consistent flow.
*Low Hydraulic Head Loss: The optimized flow path and large screening surface area result in very low head loss through the unit, saving energy on upstream pumping.
*Robust & Corrosion-Resistant Construction: Key components like the drum screen panels, main shaft, and collection trough are manufactured from high-grade stainless steel (e.g., SS304, SS316) for maximum durability in corrosive wastewater environments.
*Fully Automated & Intelligent Operation: Features a programmable logic controller (PLC) for fully automatic operation. It can integrate with plant-wide control systems and includes alarms for high differential pressure, ensuring reliable, hands-off performance.

Applications

*Fine Screening in WWTPs: Primary treatment stage ahead of MBR (Membrane Bioreactors), UV disinfection systems, or tertiary filtration.

*Industrial Pretreatment: Food processing, pulp & paper, textile industries for fiber and particulate recovery.

*CSO/Stormwater Treatment: Removing fine pollutants from combined sewer overflows.

*Water Reuse Plants: Critical pretreatment stage for high-quality effluent.

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 possess 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.