Screw Press Dehydrator
COYON's multi-disc screw press dehydrator is an innovative sludge treatment solution tailored for wastewater treatment plants (WWTPs) and industrial sludge dewatering needs. Its compact, lightweight design paired with automatic operation and minimal maintenance requirements makes it a standout choice for modern water treatment projects. The equipment integrates sludge concentration and dewatering into a single chamber, eliminating the need for separate pre-processing units.
For sludge from sewage treatment plants (STPs), it consistently produces dewatered cake with a moisture content of 75%-85%, effectively reducing sludge volume and disposal costs. With a treatment capacity ranging from 5-800 kg/h (DS), it adapts seamlessly to both small-scale and large-scale sludge treatment demands.
The multi-disk screw press dehydrators are primarily used for dewatering various high-moisture-content materials such as mud, sludge, fruit pomace, agricultural by-products, and industrial waste. They have a wide range of applications, covering municipal wastewater treatment, papermaking, food processing, chemical and pharmaceutical industries, and mining, effectively improving material dryness and reducing transportation and processing costs.
Customized Multi-Disc Screw Press Dehydrator
COYON offers personalized customization services to meet diverse customer needs. Equipment specifications, number of screws, speed, and drive method can be adjusted according to material characteristics, processing capacity requirements, and working environment to ensure perfect performance for actual applications. A professional engineering team provides full-process tracking service to help customers maximize production efficiency.
Working Principle: Three-Stage Integrated Treatment
1. Rapid Concentration
Driven by the screw pushing shaft, multiple laminated plates (fixed and movable) arranged around the shaft move relative to each other. Under the force of gravity, free moisture in the sludge is filtered out through gaps between the movable laminated plates, achieving rapid sludge concentration. This initial step reduces sludge volume by up to 50%, laying the foundation for efficient dewatering.
2. Intensive Dewatering
Concentrated sludge advances with the rotation of the screw shaft. Along the direction of the sludge cake outlet, the screw pitch gradually narrows, and the gap between adjacent rings shrinks-continuously reducing the volume of the spiral cavity. Coupled with the resistance from the back pressure plate at the outlet, the internal pressure in the filter chamber rises sharply. Under this intense mechanical extrusion, bound moisture in the sludge is thoroughly squeezed out, and the solid content of the filter cake increases steadily, realizing continuous and deep dewatering.
3. Intelligent Self-Cleaning
The rotation of the screw shaft drives the continuous movement of the movable rings. The equipment leverages the relative motion between fixed and movable rings to achieve an automatic self-cleaning process. This clever design completely avoids the common clogging problem of traditional dewatering machines, ensuring uninterrupted operation even when handling sticky or high-fiber sludge.
Technical Data of Multi Disc Screw Press Dehydrator
|
Model |
DS Sludge Treating Capacity |
Sludge Flow Treating Capacity |
|||||
|
10000mg/L |
20000mg/L |
30000mg/L |
40000mg/L |
50000mg/L |
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|
CYDL101 |
5-7 kg/h |
~0.5m³/h |
~0.25m³/h |
~0.2m³/h |
~0.15m³/h |
~0.14m³/h |
|
|
CYDL131 |
10-14 kg/h |
~1m³/h |
~0.5m³/h |
~0.4m³/h |
~0.3m³/h |
~0.28m³/h |
|
|
CYDL201 |
15-20 kg/h |
~1.5m³/h |
~0.75m³/h |
~0.6m³/h |
~0.5m³/h |
~0.4m³/h |
|
|
CYDL202 |
30-40 kg/h |
~3m³/h |
~1.5m³/h |
~1.2m³/h |
~1m³/h |
~0.8m³/h |
|
|
CYDL203 |
45-60 kg/h |
~4.5m³/h |
~2.25m³/h |
~1.8m³/h |
~1.5m³/h |
~1.2m³/h |
|
|
CYDL301 |
50-70 kg/h |
~5m³/h |
~2.5m³/h |
~2m³/h |
~1.5m³/h |
~1.4m³/h |
|
|
CYDL302 |
100-140 kg/h |
~10m³/h |
~5m³/h |
~4m³/h |
~3m³/h |
~2.8m³/h |
|
|
CYDL303 |
150-210 kg/h |
~15m³/h |
~7.5m³/h |
~6m³/h |
~4.5m³/h |
~4.2m³/h |
|
|
CYDL304 |
200-280 kg/h |
~20m³/h |
~10m³/h |
~8m³/h |
~6m³/h |
~5.6m³/h |
|
|
CYDL351 |
100-120 kg/h |
~10m³/h |
~5m³/h |
~4m³/h |
~3m³/h |
~2.4m³/h |
|
|
CYDL352 |
200-240 kg/h |
~20m³/h |
~10m³/h |
~8m³/h |
~6m³/h |
~4.8m³/h |
|
|
CYDL353 |
300-360 kg/h |
~30m³/h |
~15m³/h |
~12m³/h |
~9m³/h |
~7.2m³/h |
|
|
CYDL354 |
400-480 kg/h |
~40m³/h |
~20m³/h |
~16m³/h |
~12m³/h |
~9.6m³/h |
|
|
CYDL401 |
130-160 kg/h |
~13m³/h |
~6.5m³/h |
~5m³/h |
~4m³/h |
~3.2m³/h |
|
|
CYDL402 |
260-320 kg/h |
~26m³/h |
~13m³/h |
~10m³/h |
~8m³/h |
~ 6.4m³/h |
|
|
CYDL403 |
390-480 kg/h |
~39m³/h |
~19.5m³/h |
~15m³/h |
~12m³/h |
~9.6m³/h |
|
|
CYDL404 |
520-640 kg/h |
~52m³/h |
~26m³/h |
|
~16m³/h |
~12.8m³/h |
|
Advantages of Screw Press Dehydrator
Low Investment & Energy Efficiency: The integrated design simplifies the treatment process, reducing initial equipment investment by 30% compared to traditional split systems. It operates with minimal power consumption-only 10% of plate-and-frame filters-slashing long-term energy costs for wastewater treatment facilities.
Precision Automatic Control: Equipped with an advanced auto-control system, the equipment enables convenient and accurate operation. It automatically adjusts sludge inflow, flocculant dosage, and dewatering pressure based on real-time sludge conditions, eliminating the need for manual monitoring and reducing human error.
Enhanced Dewatering Performance with Specialized Flocculants: The system is optimized to work with specialized flocculating chemicals, which promote the formation of dense, stable sludge flocs. This synergy improves dewatering efficiency by 25%, ensuring consistent production of low-moisture sludge cake.
Ultra-Low Running Costs: Beyond energy savings, the equipment reduces polymer consumption by 40% and requires minimal maintenance. With only a few wearable parts (screw shaft and movable rings) needing occasional replacement, annual running costs are significantly lower than comparable dewatering equipment.
Broad Industry Versatility: It is widely applicable to sludge dewatering in municipal wastewater treatment plants and industries including food, beverage, slaughtering and breeding, printing, petrochemicals, papermaking, tannery, and pharmaceuticals. Its ability to handle diverse sludge types makes it a flexible solution for multi-scenario use.
Application of Multi Disk Screw Press
- Sludge dewatering in municipal wastewater treatment plants
- Waste pulp treatment in paper mills
- Fruit and vegetable residue dewatering in the food processing industry
- Raw material and waste treatment in the chemical industry
- Agricultural waste pressing and dewatering
- Mining tailings concentration and dewatering
Multi-disc screw press dehydrators, with their superior performance and stable, reliable operation, help various industries improve production efficiency and environmental protection levels. Choosing a multi disk screw press machine ushers in a new era of efficient, green, and sustainable development.
