One-Stop Custom Sludge Dewatering Screw Press Manufacturers
COYON's sludge dewatering screw press machine is a high-efficiency, cost-saving sludge treatment equipment engineered for municipal and industrial wastewater projects. What sets it apart is its ultra-wide feed solids concentration range-2000mg/L to 50000mg/L-thanks to an integrated pre-concentrating device inside the flocculation tank. This design eliminates the need for separate thickening equipment, even for low-solids wastewater, making it a versatile and streamlined solution for sludge volume reduction. With mature manufacturing technology and a treatment capacity spanning 5-800 kg/h (DS), it's trusted by industries worldwide for consistent, reliable dewatering performance.
Our sludge screw press is widely used in sludge treatment processes across various industries, including municipal wastewater treatment plants, paper mills, chemical plants, electroplating plants, and food processing plants. They effectively remove moisture from sludge, improving its dryness and making them key equipment for achieving sludge reduction, harmlessness, and resource utilization.
We offer customized sludge dewatering press machines in various models and specifications, tailored to the different sludge properties, production volumes, and on-site conditions of our clients. Whether for small-scale laboratory use or large-scale industrial sludge treatment, we can tailor solutions to ensure efficient and stable equipment operation, meeting specific customer needs.
Key Components of Sludge Screw Press
• Sludge Transfer Pump: Transports sludge from the storage tank to the metering tank, ensuring stable inflow.
• Flocculation Mixing Tank: Adjusts sludge level to return excess to the storage tank; integrates a built-in pre-concentrator for initial volume reduction.
• Blender: Facilitates full reaction between sludge and polymer flocculant, forming dense flocs that enhance dewatering efficiency.
• Screw Concentration Part: Generates powerful extrusion pressure via variable screw diameter and pitch, squeezing free moisture from sludge.
• Back Pressure Plate Dewatering Unit: Narrows gaps between movable and fixed rings, paired with back pressure plate pressure, to produce dry sludge cake.
Operational Mechanism of Sludge Press Machine
* Concentration Stage: Driven by the screw shaft, movable rings move up and down relative to fixed rings. Gravity forces most free moisture from sludge in the concentration zone, draining into the filtrate tank.
* Dewatering Stage: Concentrated sludge advances to the dewatering zone, where narrowing screw thread pitch and back pressure plate resistance drastically increase filter chamber pressure. This intense mechanical extrusion removes bound moisture, resulting in sludge cake with 75%-85% moisture content.
* Self-Cleaning Function: Movable rings rotate continuously under the screw shaft's push, automatically cleaning gaps between fixed and movable rings. This eliminates clogging-a common flaw in traditional dewatering equipment-ensuring uninterrupted operation.
Technical Data of Sludge Dewatering Screw Press
|
Model |
DS Sludge Treating Capacity |
Sludge Flow Treating Capacity |
|||||
|
10000mg/L |
20000mg/L |
30000mg/L |
40000mg/L |
50000mg/L |
|||
|
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 |
|
Benefits of Sludge Dewatering Press
Dramatic Cost Savings: Operational costs are only 40% of belt presses and 20% of decanter centrifuges. It saves 60% on polymer consumption on average, slashing long-term consumable expenses for wastewater treatment plants.
Extreme Energy Efficiency: Power consumption is just 5% of decanter centrifuges. For example, the mid-sized CYDL201 model operates with minimal energy while handling 15-20 kg/h of DS sludge, reducing electricity bills significantly.
Ultra-Low Water Usage: Rinsing water consumption is a mere 0.1% of belt presses. The self-cleaning design minimizes water waste, aligning with eco-friendly and sustainable operation goals.
Space-Saving Compact Design: Its integrated structure saves 60% of construction and installation space compared to traditional systems. This is ideal for facilities with limited area, reducing upfront infrastructure costs.
Clog-Free Oily Sludge Handling: The dynamic self-cleaning and narrow ring gap design easily processes oily, sticky sludge from petrochemical or food processing industries-no frequent shutdowns for manual cleaning.
Low Maintenance & Longevity: Crafted from SS304/316 stainless steel, the equipment resists corrosion and wear. With only screw shafts and movable rings needing occasional replacement, maintenance costs are 30% lower than comparable equipment.
We can provide the following accessories for sludge dewatering screw presses:
* Conveyors for transporting solid cakes
* Automatic or manual polymer preparation units
* Custom stainless steel support frames (with walkways, stairs, etc.)
* Sludge flow meters
* Auxiliary metering pumps for coagulant/pH adjustment, integrated into the control system
* pH measurement
* Built-in container mounting
Application of Sludge Press Machine
The sludge dewatering screw press machine is a highly efficient and energy-saving solid-liquid separation device widely used in various sludge treatment processes. With its excellent dewatering effect, stable operating performance, and environmentally friendly and energy-saving characteristics, it has become an important piece of equipment in the modern sludge treatment field. The following are the main application areas of the sludge dewatering press machine:
* Municipal Wastewater Treatment Plants: Screw presses effectively remove moisture from sludge, reducing sludge volume, lowering subsequent transportation and disposal costs, aiding urban environmental sanitation management, improving wastewater treatment efficiency, and promoting sustainable urban development.
* Industrial Wastewater Treatment: Industries such as chemical, papermaking, and food processing generate large amounts of water-containing sludge during production. Screw presses help companies reduce and utilize sludge, improving environmental protection levels while saving operating costs.
* Environmental Engineering and Recycling: Combined with biomass energy and composting processes, dewatered sludge can be used for organic fertilizer production or energy recovery, promoting resource recycling and supporting the development of green and environmentally friendly industries.
* Livestock Waste Treatment: After processing with screw presses, manure from livestock and poultry farms not only reduces odor and pollution risks but also transforms into high-quality organic fertilizer, promoting the green development of modern agriculture.
* Municipal Landscaping: After further processing, dewatered sludge can be used as a soil conditioner and garden fertilizer, improving the urban green space environment and promoting ecological civilization construction.
