The rotary drum screen cleaner (also known as drum screen or roller screen) is a high-efficiency, continuous automated solid-liquid separation device independently developed and manufactured by our company. Featuring a unique cylindrical drum structure, it integrates interception, sludge removal, and discharge processes into a single unit, specifically designed for efficient separation of fine suspended solids and floating debris in water. Widely used in municipal wastewater treatment, industrial wastewater pretreatment, pump station inlets, and water plant intake points, it serves as a critical component to ensure stable operation of subsequent treatment equipment and enhance overall processing efficiency.
The wastewater enters from the central axial end of the drum and, under the action of gravity, flows outward through the circumferentially distributed gaps of the screen. Solid impurities in the water that exceed the screen gaps (such as hair, fibers, plastic fragments, fruit peels, etc.) are intercepted by the internal filter screen of the drum.
As impurities accumulate, the liquid level differential gradually increases. When the preset threshold is reached (or triggered by timed control), the drive mechanism activates automatically, causing the drum to rotate slowly around its axis. Simultaneously, the slag-cleaning tooth rake or flushing system mounted on the drum's top begins operation, scraping off or flushing away retained contaminants. The collected debris is then channeled into the upper screw conveyor press or slag collection hopper, achieving automated conveyance, compression reduction, and centralized discharge of solid residues. The filtered water flows radially out of the equipment.
The system operates continuously or intermittently with an enclosed design, effectively reducing odor emission and environmental pollution.
Ultra-fine separation: With a wide gap range (typically 0.25-6mm), it effectively intercepts fine debris and achieves high separation accuracy, providing high-quality feed water for subsequent processes.
Compact design with space-saving features: The ingenious cylindrical structure streamlines workflows and maximizes space efficiency, making it ideal for projects with limited space, whether new construction or renovation.
Fully enclosed operation with environmental friendliness: The equipment is completely sealed to prevent wastewater splashing and odor leakage, improving the working environment and meeting modern environmental protection standards.
High automation and reliable operation: The PLC-based intelligent control system automatically cleans contaminants based on liquid level differences or set time intervals, ensuring smooth operation with low failure rates. This significantly reduces manual maintenance workload and associated costs.
High self-cleaning capacity with anti-clogging performance: The innovative rotating slag-cleaning design, paired with an optional high-pressure flushing system, effectively prevents grid clogging and ensures long-term efficient operation.
Corrosion-resistant and long-lasting: Key components (e.g., drum frames, grates, and toothed rakes) are fabricated from high-grade stainless steel (e.g., 304/316) or corrosion-resistant materials. Critical parts undergo specialized processing to ensure wear and corrosion resistance, making them suitable for complex water environments.
Low energy consumption and easy maintenance: The drive requires minimal power and consumes low energy; the modular design enables convenient and rapid daily inspections and component replacements.
- Technical Parameters and Specification Selection
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Parameter item
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Description/Scope
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unit type
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ZG (XXX) - [Drum Diameter] - [Gitter Spacing] (Customizable as needed)
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drum diameter
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Φ600mm to Φ3000mm or larger
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gutter gap
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0.25mm, 0.5mm, 1mm, 2mm, 3mm, 5mm, 6mm, etc. (common)
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Water treatment capacity
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Depending on the drum size and gap, the throughput ranges from tens to thousands of cubic meters per hour.
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Installation angle
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Typically around 35°, adjustable according to site conditions
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material quality
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Material: 304/316 stainless steel; for special working conditions, carbon steel corrosion-resistant or other special materials are available
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navar
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Standard PLC control cabinet with dual control for liquid level difference/time and remote monitoring interface
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Optional configuration
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Screw conveyor press, high-pressure flushing system, enhanced corrosion resistance, explosion-proof motor, etc.
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- Main Application Fields
- Municipal engineering: the inlet pretreatment of urban sewage treatment plant and rainwater pumping station.
- Industrial wastewater: the front-end of wastewater treatment in industries such as papermaking, food, textiles, chemicals, and pharmaceuticals.
- Public facilities: water intake of waterworks, cooling water system of power plant, drainage system of commercial complex.
- Environmental engineering: solid residue removal in projects such as reclaimed water reuse, river pollution interception, and wetland protection.
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