Description
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DAGYEE Industrial Decanter Centrifuge – Continuous High-Efficiency Sludge Dewatering & Solid-Liquid Separation |
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 is a horizontal screw discharge sedimentation centrifuge that continuously separates solids from liquids using centrifugal force. The equipment consists of a rotating bowl, a screw conveyor, a differential speed system, a liquid level adjustment mechanism, and a drive and control system. The principle is simple yet highly effective: the feed mixture enters the rotating bowl, where centrifugal forces accelerate the settling of denser solid particles against the bowl wall, while the lighter liquid phase forms an inner layer. The screw conveyor, rotating at a slightly different speed, continuously transports the settled solids to the conical end for discharge, while the clarified liquid overflows at the opposite end.
The DAGYEE decanter centrifuge delivers continuous, fully automated operation with high throughput and consistent dewatering performance. It reduces sludge volume significantly, producing a dewatered cake with 15-30% dry solids content depending on the feed characteristics, while returning a clean liquid phase for reuse or disposal.
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 energy saving decanter centrifuge builds upon the classic decanter working principle while incorporating innovative technologies to minimize power consumption:
1. Intelligent VFD Control System
Traditional centrifuges run at fixed speeds regardless of feed conditions, wasting energy during periods of low load. Our VFD system continuously monitors process parameters and automatically adjusts:
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Bowl speed based on feed consistency
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Differential speed optimized for current solids loading
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Starting and stopping sequences with energy recovery
2. Optimized Drive Train Design
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High-efficiency motors (IE3 / IE4 premium efficiency class)
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Direct drive configuration eliminating energy losses from belts and pulleys
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Precision gearing with optimized tooth profiles for reduced friction
3. Smart Load Sensing Technology
The control system detects variations in feed concentration and adjusts operating parameters in real-time, ensuring that energy is used only when and where it is needed. During periods of low solids loading, the system automatically reduces speed to conserve energy.
4. Energy Recovery Options
For continuous high-load applications, optional energy recovery systems capture regenerative energy during deceleration and feed it back into the plant power grid, further reducing overall consumption.
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
High Separation Efficiency
The combination of high rotational speed and large L/D ratio provides strong centrifugal forces and extended residence time, achieving high solids recovery and low cake moisture.
Dual Motor with VFD Drive
The system uses two motors with variable frequency drives—one for the bowl and one for the screw conveyor. This allows independent control of bowl speed and differential speed for process optimization. Common DC bus technology enables energy recovery, reducing power consumption.
Adjustable Liquid Level
The pond depth can be adjusted by changing dam plates or using PowerTubes, allowing fine-tuning for different feed conditions and separation requirements.
Wear Protection
Critical areas such as the screw conveyor flights, feed distribution zone, and solids discharge port are protected with tungsten carbide hardfacing, wear-resistant ceramic inserts, or spray welding. This extends service life significantly, especially when processing abrasive materials.
Corrosion-Resistant Construction
All process-wetted parts are made from high-grade stainless steel (SS304, SS316L, or duplex) to resist corrosion and maintain product purity.
Enclosed, Odor-Free Operation
The decanter operates with a fully enclosed casing, preventing fugitive emissions, containing odors, and eliminating splashing—essential for wastewater treatment plants and food processing facilities.
PLC Control & Remote Monitoring
The system includes a PLC control panel with HMI touch screen for automated operation, real-time monitoring, alarm management, and remote SCADA connectivity.
Applications
Municipal Wastewater Treatment
Dewatering of primary sludge, waste activated sludge (WAS), mixed sludge, and digested sludge. Produces cake with 18-28% dry solids, significantly reducing disposal costs.
Industrial Wastewater
Chemical plants, food processing, pulp and paper, textile, and petrochemical sludge dewatering. Handles variable feed conditions and challenging materials.
Food and Beverage
Processing of fruit and vegetable juices, wine clarification, vegetable oil extraction, protein recovery, starch dewatering, and brewery spent grain separation.
Oil and Gas
Crude oil sludge treatment, drilling mud recovery, refinery wastewater dewatering, and produced water treatment.
Mining and Mineral Processing
Tailings dewatering, mineral concentrate thickening, and coal slurry dewatering.
Pharmaceutical and Chemical
Antibiotic fermentation broth separation, chemical slurry dewatering, and fine chemical purification.
Three-Phase Separation
Separation of liquid-liquid-solid mixtures such as oil-water-sludge, edible oil-water-solids, and other three-phase systems.
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 Industrial Decanter Centrifuge delivers reliable, continuous high-efficiency sludge dewatering and solid-liquid separation for municipal, industrial, and process applications. With dual motor VFD drive, energy recovery, and automatic operation, it reduces sludge volume, lowers disposal costs, and simplifies plant operations.
Contact our team for a free consultation and customized centrifuge selection for your application.
