Description
DAGYEE Decanter Centrifuge for Mining & Mineral Processing – Heavy-Duty Solid-Liquid Separation for Tailings & Concentrates
The DAGYEE Energy Saving Decanter Centrifuge represents a breakthrough in industrial solid-liquid separation technology. In an era where energy costs are rising and environmental regulations are tightening, we have engineered a centrifuge that delivers exceptional separation performance while consuming significantly less power.
By integrating advanced Variable Frequency Drive (VFD) technology, intelligent process control algorithms, and optimized mechanical design, our energy saving decanter centrifuge achieves up to 30% reduction in energy consumption compared to conventional centrifuge designs—without compromising on throughput or separation quality.
Whether you are upgrading existing equipment or designing a new processing line, the DAGYEE
energy saving decanter centrifuge offers the perfect balance of performance, sustainability, and return on investment.
Decanter centrifuge description
A decanter centrifuge for mining and mineral processing is a heavy-duty machine designed to separate solids from liquids in abrasive slurries encountered in mining operations . The equipment consists of a rotating bowl and a screw conveyor that continuously transports settled solids to the discharge end . It is used for dewatering tailings, thickening mineral concentrates, processing coal slurries, and recovering valuable solids from process streams .
Mining slurries are abrasive and often contain large particles. The DAGYEE mining decanter is built with wear-resistant materials and hardfacing to handle these demanding conditions . It operates continuously and automatically, processing high volumes of slurry with low operating costs . The machine reduces water content in tailings, recovers valuable minerals, and minimizes environmental impact .
From iron ore and copper to coal and gold, DAGYEE decanters deliver reliable, heavy-duty separation for the mining industry.
Experience maximum solid-liquid separation efficiency
- High-performance separation, resulting in high-value products and low waste management costs
- Lower energy consumption and carbon footprint
- Minimal maintenance costs thanks to continuous operation, high-grade machine materials, smart design and well-thought preventive services
- Low capital cost/capacity ratio
- Wide-ranging feed variations and controllable performance
How does a decanter centrifuge work?
The Process Flow:
Step 1: Slurry Feed
The mining slurry enters the centrifuge through a stationary feed pipe, passing through the hollow shaft of the screw conveyor into the distribution chamber within the bowl.
Step 2: Centrifugal Separation
The rotating bowl generates centrifugal forces that accelerate the settling of solid particles against the bowl wall. The denser mineral particles are thrown outward, while the liquid phase moves toward the center.
Step 3: Solids Conveying
The screw conveyor rotates at a slightly different speed, "ploughing" the settled solids along the bowl wall and pushing them up the conical beach section. The conveyor flights are protected with tungsten carbide hardfacing to resist abrasion.
Step 4: Solids Dewatering
As the solids are conveyed up the beach, they are squeezed against the bowl wall, releasing residual water. The dewatered solids discharge through the solids outlet at the conical end.
Step 5: Liquid Discharge
The clarified liquid overflows adjustable dam plates at the large-diameter end. The liquid phase can be returned to the process or discharged.
Step 6: Continuous, Automatic Operation
The process runs continuously and automatically, handling variable feed conditions without operator intervention.
Technical Specifications
Model Number:DAGYEE-LW
Bowl Diameter: 250 – 720 mm (selectable)
L/D Ratio: 3.0 – 5.0
Bowl Speed: 2000 – 4600 RPM
Separation Factor: Up to 3500 G
Capacity: 0.5 – 100 m³/h
Feed Solids Concentration: 0.5 – 40%
Solid Phase Dryness: 15 – 30% DS
Liquid Phase Clarity: ≤ 0.1% solids
Construction Materials: SS316L (food-grade)
Surface Finish: Ra ≤ 0.8 µm (product-contact)
Seals: FDA-compliant materials
Drive System: Dual motor with VFD
CIP Compatibility: Yes
Power Supply: 380V ± 10%, 50/60Hz, 3 Phase
Control System: PLC with HMI, recipe management
Certification: CE, ISO 9001, Food-grade materials
Bowl Diameter: 250 – 720 mm (selectable)
L/D Ratio: 3.0 – 5.0
Bowl Speed: 2000 – 4600 RPM
Separation Factor: Up to 3500 G
Capacity: 0.5 – 100 m³/h
Feed Solids Concentration: 0.5 – 40%
Solid Phase Dryness: 15 – 30% DS
Liquid Phase Clarity: ≤ 0.1% solids
Construction Materials: SS316L (food-grade)
Surface Finish: Ra ≤ 0.8 µm (product-contact)
Seals: FDA-compliant materials
Drive System: Dual motor with VFD
CIP Compatibility: Yes
Power Supply: 380V ± 10%, 50/60Hz, 3 Phase
Control System: PLC with HMI, recipe management
Certification: CE, ISO 9001, Food-grade materials
Decanter centrifuge specifications
| Model | Drum Diameter (mm) | Length (mm) | Maximum Speed (RPM) | Highest Separation Factor (g) | Mixture Capacity (m³/h) |
|---|---|---|---|---|---|
| LW250-900 | 250 | 900 | 5000 | 3500 | 0.5-3 |
| LW350-1500 | 350 | 1500 | 3800 | 2850 | 1-5 |
| LW400-1200 | 400 | 1200 | 3400 | 2581 | 1-8 |
| LW400-1600 | 400 | 1600 | 3400 | 2581 | 2-10 |
| LW400-1800 | 400 | 1800 | 3400 | 2581 | 2-12 |
| LW450-1800 | 450 | 1800 | 3200 | 2572 | 5-20 |
| LW450-2000 | 450 | 2000 | 3200 | 2572 | 5-25 |
| LW530-2280 | 530 | 2280 | 2800 | 2350 | 10-50 |
| LW600-2400 | 600 | 2400 | 2600 | 2265 | 15-65 |
| LW650-2600 | 650 | 2600 | 2400 | 2100 | 20-80 |
| LW720-2500 | 720 | 2500 | 2200 | 1950 | 25-90 |
| LW800-2560 | 800 | 2560 | 2000 | 1800 | 30-100 |
| LW800-3200 | 800 | 3200 | 2000 | 1800 | 30-110 |
| LW900-3200 | 800 | 3200 | 1800 | 1650 | 30-150 |
Decanter centrifuge key features
Tailings Dewatering
Reduces water content in mine tailings, producing a stable, stackable cake for disposal or storage . This minimizes the environmental footprint of tailings storage facilities.
Mineral Concentrate Thickening
Thickens mineral concentrates (iron ore, copper, gold, etc.) before drying or further processing . Increases solids content for efficient downstream handling.
Coal Slurry Dewatering
Processes coal slurries from washing and beneficiation plants . Recovers coal fines and produces dewatered coal product.
Sand and Aggregate Dewatering
Dewaters sand and aggregate slurries from washing operations . Produces dry sand for construction or further processing.
Process Water Recovery
Recovers valuable process water from tailings and slurries . Returns water to the process, reducing fresh water consumption.
Chemical and Fertilizer Processing
Dewaters chemical precipitates and fertilizer slurries . Handles abrasive materials with wear-resistant construction.
Applications
Food-Grade Construction
All process-wetted parts are made from SS316L stainless steel, providing excellent corrosion resistance and meeting food safety requirements . The design ensures no contamination of the product.
Sanitary Design
The decanter features smooth surfaces, crevice-free construction, and sanitary connections, preventing product buildup and facilitating effective cleaning.
CIP Compatibility
The machine is designed for clean-in-place (CIP) operation, allowing thorough cleaning without disassembly . This minimizes downtime and ensures hygienic operation between batches.
Gentle Processing
The decanter operates at controlled speeds to minimize shear and product degradation, preserving the quality of sensitive food and beverage products.
Temperature Control
Optional heating or cooling jackets allow temperature control during processing, which is important for maintaining product quality.
Enclosed, Dust-Free Operation
The fully enclosed design prevents contamination and product loss, while containing odors and aerosols .
Dual Motor VFD Drive
Separate motors for bowl and screw conveyor with VFD control provide precise control over separation parameters .
PLC Automation
The system includes PLC controls with HMI touch screen for automated operation, recipe management, and documentation.
Why choose the DAGYEE decanter centrifuge?
| Feature | Customer Value |
|---|---|
| Continuous Operation | 24/7 dewatering without downtime for discharge |
| High Throughput | Single unit handles up to 100 m³/h |
| Energy Efficient | Dual motor VFD with energy recovery reduces power consumption |
| Automatic Operation | PLC controls minimize operator attention |
| High Cake Dryness | Stable 18-28% DS reduces disposal costs |
| Low Polymer Consumption | Optimized design reduces chemical usage |
| Wear Protection | Extended service life in abrasive applications |
| Enclosed Operation | Odor control, safe, clean environment |
| Flexible Configuration | 2-phase or 3-phase separation options |
Proven in Diverse Applications
Our energy saving technology has been validated across multiple industries:
"Switching to DAGYEE energy saving decanter centrifuges reduced our electricity consumption by 27% while actually improving our cake dryness by 2%. The payback period was just 14 months."
— Plant Manager, Municipal Wastewater Treatment Facility, Germany
*"We operate 24/7, so energy costs are a major concern. The DAGYEE VFD-controlled centrifuges have cut our power bills significantly, and the remote monitoring feature gives us peace of mind."*
— Operations Director, Chemical Processing Plant, USA
Contact Us
The DAGYEE Decanter Centrifuge for Mining & Mineral Processing delivers heavy-duty, reliable solid-liquid separation for tailings dewatering, concentrate thickening, and coal slurry processing. With wear-resistant construction, high solids handling capacity, and continuous automatic operation, it helps mining operations reduce environmental impact, recover valuable minerals, and lower operating costs.
Contact our team for a free consultation and customized centrifuge selection for your mining application.
