2025Best-Selling Screw Press Sludge Dewatering Machine for Poultry
Wastewater Treatment
Product Overview
The volute-type sludge dewatering machine consists of two main
sections: the concentration zone and the dewatering zone. Both
sections are formed by fixed rings and moving rings. The moving
rings are equipped with an independent automatic cleaning system.
During operation, the moving shaft drives the rings to continuously
clean the filter gaps, effectively preventing solid clogging and
ensuring stable, continuous performance with minimal clean water
consumption.
Working Principle
The machine is supported by a four-point walking beam spanning the
sedimentation tank. It operates on rails installed along both sides
of the tank. As the equipment travels from one end to the other, it
simultaneously extracts sludge. Upon reaching the end of the tank,
it reverses direction and continues the suction process, completing
a full working cycle automatically.
Main Components
The system includes:
Main working bridge
Sludge suction and discharge pipes
Submerged suction pump
Bilateral drive mechanism
Electrical control cabinet
Track and sliding cable system
Key Advantages
Compact Design
Integrates electrical controls, metering, flocculation mixing, and
dewatering in one unit.
Small footprint, easy operation, maintenance, and part replacement.
Anti-Clogging Performance
Self-cleaning mechanism avoids manual filter cleaning.
Reduces water usage and internal circulatory load.
Ideal for oily and challenging sludge types.
Low-Speed Operation
Screw rotation at only 2–3 RPM ensures low energy consumption.
Minimal noise, vibration, and mechanical failure for safe, reliable
performance.
User-Friendly Operation
Full automation through the control cabinet.
Synchronized with aeration units, sludge pumps, and dosing systems
for 24/7 operation.
Easy and infrequent maintenance.
Durable Construction
Parameters
| Parameter / model | DNT-1000 | DNT-1500 | DNT-2000 | DT-2500 | DNT-3000 |
| Filter - band width b(mm) | 1000 | 1500 | 2000 | 2500 | 3000 |
| Handling capacity Q(m3／h) | 10~20 | 20~30 | 30~40 | 40~60 | 60~80 |
| Outline dimension (BxLxH) | 1700x5160x2350 | 2200x5160x2570 | 2700x5160x2570 | 3200x5300x2570 | 3700x5300x2570 |
Filter - belt running speed V(m／min) Concentrate motor power N1(KW) | 3.0～15(enriching section ),1.2～6.0( dewatering period ) |
| 0.55 | 0.75 | 1.1 | 1.5 | 1.5 |
| Dewatering motor power N2(KW) | 1.1 | 2.2 | 3.0 | 3.0 | 5.0 |
| Hecharge discharge height h(mm) | 1250 | 1500 | 1500 | 1800 | 1800 |
| Wash water | Water consumption (m3／h) | 7.5 | 12.0 | 15.0 | 25.0 | 30.0 |
| Water gage(MPa) | ≥0.5 |
| Compressed air | Gas consumption (m3／h) | 0.3 | 0.4 | 0.4 | 0.4 | 0.4 |
| Pressure(MPa) | ≥0.7 |
| Ineding water content(％) | 99.61/99.0 |
| Water content rate of mud cake (％) | 80/78 |
| Dry mud(kgds／h·m) | 110~130 |
| hydraulic load (m3／h·m) | 22~26/12~16 |
| Installation size (ww) | B1 | 2450 | 2950 | 3450 | 3950 | 4450 |
| B2 | 1950 | 2450 | 2950 | 3450 | 3950 |
| B3 | 1750 | 2250 | 2750 | 3250 | 3750 |
| B4 | 1450 | 1950 | 2450 | 2950 | 3450 |
| B5 | 1300 | 1800 | 2300 | 2800 | 3300 |
| L1 | 5300 | 5650 | 5650 | 5850 | 5850 |
| L2 | 250 | 250 | 250 | 300 | 300 |
| L3 | 4600 | 4950 | 4950 | 5050 | 5050 |
| H1 | 200 | 250 | 250 | 250 | 250 |
| H2 | 150 | 150 | 150 | 150 | 150 |
| H3 | 300 | 300 | 300 | 300 | 300 |
Real Picture
Comapny profile
Jiangsu Longdai Environmental Protection Group Co., Ltd. is an
environmental protection equipment manufacturer with 11 years of
experience. It has provided a large number of sophisticated
environmental protection equipment at home and abroad, established
three branches in China, and cooperated with many universities to
build Longdai R&D center. There are 4 middle doctors, 10
masters, and 25 senior engineers.
Main business: "Petrochemical Wastewater Treatment, Urban and Rural
Wastewater Treatment, Waste Gas Collection and Treatment,
Industrial Wastewater Treatment, etc."
Main equipment: "Integrated treatment equipment, grille
decontamination machine, sand water separator, mud scraper, air
flotation device, dosing device, sludge thickener, rotary drum
micro filter, conveyor, etc."
The technical team participates in technical exchange meetings
every year, exchanges experience with professionals, continuously
improves technical competitiveness, and provides customers with the
clearest and most practical design solutions.
The processing team controls the manufacturing details of each
equipment, and manufactures the most sophisticated and reliable
equipment for customers.
The company has passed ISO9001-2008 international standard quality
system certification.
We look forward to contacting you, please give us a chance. I hope
we can trust each other for mutual benefit and win-win results.
FAQs
Q: What certificates do you have?
A: CE/ISO/SGS
Q: Do you offer after-sales service?
A: Yes. Engineers available.
Q: How long is your warranty?
A: 2 years after the arrival of the goods. During this period, as
long as it is not a man-made damage, we send the damaged parts free
of charge.
Q: What about your delivery Time?
A: Normally within 45 days against down payment.
Q: What about the package of your export product?
A: We use anticorrosion wooden case with foam inside.
Q: What kind of payment do you accept?
A: T/T, L/C, PAYPAL, Cash, D/P, D/A, WESTERN UNIION, MONEYGRAM
