DAGYEE Heavy-Duty Rotary Drum Screen for Mining & Mineral Processing

DAGYEE Heavy-Duty Rotary Drum Screen for Mining & Mineral Processing

Product Item：DSS

Externally Fed Drum Screens

Capacity:20-200m3/h

MOQ:1SET

Function:Solid liquid seperator

Description

DAGYEE Mining & Mineral Processing Rotary Drum Screen: Engineered for the World's Toughest Applications

Externally rotary fed drum screen description

Mining and mineral processing operations generate some of the most challenging wastewater streams for screening equipment, characterized by high solids concentrations, abrasive particles, variable flow rates, and often remote locations with limited maintenance resources. The DAGYEE Mining Rotary Drum Screen is purpose-built to excel in these demanding conditions. From tailings management and process water recovery to acid mine drainage treatment and mineral concentrate dewatering, this robust system delivers reliable performance where equipment failure can mean significant production losses and environmental consequences.

Externally rotary fed drum screen principle

Unlike conventional screens that rely on simple size exclusion, our ultra-fine system employs a multi-stage separation process. Wastewater is first introduced through a hydrodynamic distribution system that eliminates turbulence and ensures laminar flow across the entire screening surface. As the drum rotates at an optimized slow speed (typically 1-4 RPM), particles encounter the precision screen media where both mechanical sieving and surface filtration occur. The ultra-fine wedge wire creates a true surface filter where particles smaller than the nominal aperture can be retained through bridging and cake filtration effects. A sophisticated multi-zone cleaning system operates continuously, with each zone optimized for different cleaning requirements: preliminary rinsing, high-pressure dislodgement, and final surface preparation. This meticulous approach maintains consistent filtration performance without the efficiency losses typical of fine screening equipment.

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

The external feed design allows for a large effective screening area to handle peak flows and heavy solids loads with high removal efficiency.
The internal high-pressure self-cleaning system ensures continuous, unattended operation, minimizing downtime and maintenance labor.
Constructed primarily from grade 304 or 316 stainless steel for all wetted parts, ensuring exceptional corrosion resistance and long service life in harsh environments.
Available in various drum diameters, lengths, screen aperture sizes, and construction materials to meet exact application specifications.
Energy-efficient drive system and efficient cleaning reduce water and power consumption compared to other screening technologies.
By removing fine solids at the headworks, it significantly reduces the load on downstream processes like biological treatment, clarifiers, and membranes, lowering overall plant operational costs.

Externally rotary fed drum screen feature

Precision Screen Media Options: Manufactured using V-shaped wedge wire with openings from 0.25mm to 1.0mm, laser-welded to support rods with tolerances of ±0.02mm, ensuring absolute aperture consistency across the entire screening surface.
Advanced Hydraulic Distribution: Patented laminar flow distribution system with adjustable baffles and velocity control features that eliminate preferential flow paths and ensure uniform loading across all screen panels.
Optimized Rotational Dynamics: Low-speed rotation mechanism with precision gear reducers and smooth acceleration/deceleration profiles to prevent re-suspension of captured solids and minimize shear forces on delicate particles.
Intelligent Multi-Stage Cleaning: Three-stage internal cleaning system with independent pressure control for each zone (2-4 bar preliminary, 6-8 bar dislodgement, 3-5 bar finishing), optimizing cleaning efficiency while minimizing water consumption.
Enhanced Materials of Construction: 316L stainless steel throughout wetted parts, with electropolished interior surfaces to prevent particle adhesion and facilitate complete cleaning.
Comprehensive Monitoring Package: Includes turbidity monitoring of influent and effluent, differential pressure measurement across screen media, particle counting capabilities, and real-time efficiency calculation.
Adaptive Control System: PLC-based control with algorithms that automatically adjust drum speed based on differential pressure, optimize spray sequences based on solids loading, and predict cleaning requirements.
Modular Design Architecture: Allows for future upgrades in screen fineness, additional monitoring capabilities, or integration with advanced control systems without complete system replacement.

Why Choose DAGYEE?

Our expertise in precision filtration stems from decades of specialization in fine screening applications. We manufacture our own wedge wire screen panels in a controlled clean-room environment, where each panel undergoes laser scanning to verify aperture dimensions and computerized tension testing to ensure structural integrity. Our engineering team includes hydraulics specialists who optimize flow patterns using computational fluid dynamics (CFD) modeling, ensuring that every square centimeter of screen area performs equally. We conduct extensive pilot testing with actual wastewater streams to validate performance claims and refine operational parameters before equipment installation. This scientific approach to screening technology development ensures that our systems deliver measurable, repeatable results in real-world applications.

Externally rotary fed drum screen application

Superior Effluent Quality Achievement: Consistently produces effluent with suspended solids concentrations below 10 mg/L and capable of achieving below 5 mg/L with optimal operation, meeting stringent discharge limits and reuse standards.
Enhanced Downstream Process Protection: Particularly valuable for protecting membrane bioreactors (MBRs), UV disinfection systems, and advanced oxidation processes from fouling, reducing cleaning frequency by 50-70% and extending equipment lifespan.
Increased Water Reuse Potential: The high-quality effluent enables direct reuse in cooling towers, process water applications, or irrigation, reducing freshwater intake requirements and supporting sustainability initiatives.
Reduced Chemical Consumption: By removing fine particulates that would otherwise consume coagulants and flocculants, it reduces chemical usage in subsequent treatment stages by 20-40%, lowering operational costs and sludge production.
Operational Efficiency Optimization: The intelligent control system minimizes energy consumption by optimizing drum speed and cleaning cycles based on actual loading conditions, reducing energy use by 25-35% compared to fixed-operation systems.
Data-Driven Performance Management: Comprehensive monitoring provides actionable data for process optimization, regulatory compliance documentation, and predictive maintenance planning, transforming screening from a simple process step to a managed asset.
Future-Proof Design: Modular architecture allows adaptation to changing regulations or process requirements without complete system replacement, protecting your capital investment against future obsolescence.