Description
DAGYEE Pilot-Scale Rotary Drum Screen: Precision Tools for Process Development and Research
Externally rotary fed drum screen description
Process development, treatability studies, and research initiatives require screening equipment that provides accurate, scalable data while offering the flexibility to test various configurations and conditions. The DAGYEE Pilot-Scale Rotary Drum Screen is specifically engineered for these applications, serving as a critical tool for engineers, researchers, and technology developers. Unlike scaled-down versions of production equipment, these units are designed from first principles to provide meaningful data that can be confidently scaled to full-size systems. With comprehensive instrumentation, flexible configuration options, and precise control capabilities, these pilot units accelerate technology development, reduce project risk, and provide the data needed for informed decision-making.
Externally rotary fed drum screen principle
Employing a time-tested yet optimized external feed methodology, wastewater enters the system through an engineered distribution chamber that ensures uniform flow across the entire width of the rotating drum. As the drum rotates at a precisely controlled speed (typically 2-8 RPM), liquid passes through precisely manufactured screen panels while solids are retained on the drum's exterior surface. The critical innovation lies in the concurrent internal cleaning system: high-pressure spray nozzles mounted on a rotating manifold within the drum deliver targeted water jets that dislodge trapped solids in real-time, preventing screen blinding and maintaining 100% active screening area without interrupting the filtration process. Captured solids are washed into an integrated collection hopper, while filtered effluent exits through strategically positioned outlet ports.
Externally rotary fed drum screen model
| Industry Type | Slot (mm) | RDS03/300 | RDS06/400 | RDS06/700 | RDS06/1000 | RDS06/1300 | RDS06/1600 | RDS08/2000 | RDS08/2500 |
|---|---|---|---|---|---|---|---|---|---|
| Paper Industry | 0.5 | 6 | 20 | 40 | 60 | 80 | 100 | 130 | 190 |
| Slaughter House | 0.5 | 4 | 15 | 30 | 45 | 60 | 75 | 95 | 130 |
| Seafood Industry | 0.75 | 5 | 17 | 35 | 50 | 70 | 90 | 110 | 140 |
| Meat Industry | 0.75 | 6 | 20.5 | 40 | 60 | 80 | 100 | 130 | 190 |
| Meat Industry | 1.0 | 7.5 | 25 | 50 | 75 | 100 | 125 | 150 | 220 |
| Vegetable Industry | 1.0 | 12 | 40 | 75 | 110 | 150 | 180 | 220 | 330 |
Externally rotary fed drum screen advantage
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Unmatched Operational Reliability: Engineered for true 24/7 operation with mean time between failures (MTBF) exceeding industry standards, ensuring continuous process flow and minimizing production disruptions.
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Significant Reduction in Maintenance Costs: The automatic self-cleaning system eliminates manual cleaning requirements, while the robust construction reduces wear part replacement frequency, lowering total maintenance expenditures by 40-60% compared to conventional screens.
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Enhanced Downstream Process Protection: By removing up to 95% of suspended solids at the pretreatment stage, it significantly reduces wear on pumps, protects sensitive membrane systems, decreases sludge volumes in secondary treatment, and improves overall plant efficiency.
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Energy and Resource Efficiency: Optimized hydraulic design reduces head loss, while the efficient spray system minimizes water consumption for cleaning, resulting in 20-30% lower operational energy and water costs.
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Adaptability to Variable Conditions: Capable of handling flow variations of up to 300% and solids load fluctuations without performance degradation, making it ideal for batch processes or plants with highly variable wastewater characteristics.
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Long-Term Economic Value: With an expected service life exceeding 15 years in industrial environments and significantly lower lifetime operating costs, it delivers superior return on investment compared to alternative screening technologies.
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Simplified Operational Management: The consistent performance reduces operator intervention requirements, while the intuitive controls and monitoring systems simplify daily operations and troubleshooting.
Externally rotary fed drum screen feature
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Robust Structural Design: Constructed from heavy-gauge 304 or 316L stainless steel with reinforced support rings and extra-thick end plates capable of withstanding significant mechanical stress and hydraulic loading.
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Optimized External Feed System: Features an adjustable distribution weir or spray pipe system that ensures even liquid distribution across the full drum width, maximizing screening efficiency and preventing channeling.
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Commercial-Grade Mechanical Components: Industrial-rated gear reducers with minimum AGMA Class II rating, high-torque shaft-mounted drives, and oversized trunnion rollers with precision bearings designed for 100,000+ hours of continuous operation.
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Advanced Self-Cleaning Technology: Multi-zone high-pressure spray system (typically operating at 4-6 bar) with industrial-duty nozzles resistant to clogging, ensuring complete screen cleaning with minimal water consumption.
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Modular Screen Panel System: Bolt-on screen panels available in various aperture sizes (0.5mm to 6.0mm) constructed from wedge wire, perforated plate, or mesh, allowing for easy replacement and customization.
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Precision Control Systems: Variable frequency drive with torque control capabilities, integrated overload protection, and speed adjustment from 10-100% of rated capacity to match varying flow conditions.
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Comprehensive Monitoring: Includes integrated pressure sensors, flow meters, motor current monitoring, and vibration sensors for performance tracking and predictive maintenance.
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Enhanced Safety Features: Fully enclosed rotating components, emergency stop systems, lockout/tagout provisions, and corrosion-resistant safety guarding meeting international industrial safety standards.
Why Choose DAGYEE?
Our engineering philosophy centers on designing equipment that not only meets specifications but exceeds operational expectations in real-world conditions. Each heavy-duty drum screen undergoes rigorous factory acceptance testing, including full-load rotational testing, spray system verification, and structural integrity validation. We employ finite element analysis (FEA) to optimize structural components, computational fluid dynamics (CFD) to perfect hydraulic performance, and real-world data from hundreds of installations to continuously improve our designs. Our technical support team includes engineers with decades of industrial wastewater experience, providing not just equipment but comprehensive process solutions and ongoing operational support.
Externally rotary fed drum screen application
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Primary Treatment for Manufacturing Facilities: Ideal for automotive plants, metal fabrication shops, and general manufacturing facilities producing wastewater with metal fines, cutting oils, and process solids.
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Processing Industry Pretreatment: Specifically designed for food processing plants, chemical production facilities, pharmaceutical manufacturing, and pulp/paper mills requiring reliable solids removal from complex waste streams.
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Municipal Wastewater Headworks: Engineered for high-flow municipal treatment plants requiring durable equipment capable of handling large debris, grit, and organic solids in raw sewage.
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Mining and Mineral Processing: Suitable for mine water treatment, tailings management, and process water recovery in mining operations where abrasive solids are present.
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Power Generation Facilities: Effective for cooling water screening, ash handling water treatment, and general plant wastewater management in thermal and nuclear power plants.
Supplier Information
Upgrade Your Pretreatment with DAGYEE Externally Fed Drum Screens – Ensuring Efficient and Reliable Solids-Liquid Separation.
Contact us today for a free application review and mixer selection recommendation!
