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Custom Printing and Dyeing Factory High Energy-saving Spiral Screw Sludge Dewatering Machine QXDL-351

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  • Printing and Dyeing Factory High Energy-saving Spiral Screw Sludge Dewatering Machine QXDL-351
  • Printing and Dyeing Factory High Energy-saving Spiral Screw Sludge Dewatering Machine QXDL-351
  • Printing and Dyeing Factory High Energy-saving Spiral Screw Sludge Dewatering Machine QXDL-351
  • Printing and Dyeing Factory High Energy-saving Spiral Screw Sludge Dewatering Machine QXDL-351

Printing and Dyeing Factory High Energy-saving Spiral Screw Sludge Dewatering Machine QXDL-351

The high energy-saving spiral sludge dewatering machine for printing and dyeing plants utilizes advanced spiral technology, which achieves excellent dewatering performance while minimizing energy consumption. The machine effectively separates water from sludge, reducing the volume of sludge, making it easier and more economical to handle. The solid structure ensures durability and reliability.

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QXDL-351 Printing and Dyeing Factory
High Energy-saving Spiral Screw Sludge Dewatering
Printing and Dyeing Factory High Energy-saving Spiral Screw Sludge Dewatering Machine
50-100kg/hDry Sludge
1.85kWTotal Power
1050kgWeight
3610mmLength
1100mmWidth
QXDL-351
Product Introduction

The Printing and Dyeing Factory High Energy-saving Spiral Screw Sludge Dewatering Machine QXDL-351 is specifically designed for the demanding wastewater treatment requirements of textile and dyeing operations. This unit handles sludge with high color, chemical oxygen demand (COD), and variable pH levels common in printing and dyeing effluents. The screw shaft features a specialized corrosion-resistant coating and progressive pitch reduction from 140mm to 50mm, generating compression up to 0.75 MPa. The ring stack is manufactured from SS316L with enhanced gap tolerance to prevent clogging from dye particles and fiber residues. Processing 50-100 kg/h dry solids with feed concentrations of 0.5-5 percent, this machine achieves cake dryness of 20-28 percent DS. The integrated VFD drive with torque-based control automatically adjusts to fluctuating feed conditions, ensuring stable operation in batch-processing dye houses.

Core Advantages
⏚
Dye Industry Optimized
Engineered specifically for printing and dyeing wastewater with SS316L construction and enhanced chemical resistance against aggressive dyes and auxiliaries.
⏚
Energy Efficient
Consumes only 1.85 kW with low-speed operation (1.5-4.5 RPM), reducing operational costs by 65 percent compared to conventional dewatering methods.
⏚
Fiber Clog Prevention
Specialized ring gap design with self-cleaning differential motion prevents blockage from textile fibers and dye particles.
⏚
Automated Batch Adaptation
VFD-driven torque control automatically adjusts to variable feed from dyeing batch cycles, maintaining consistent cake quality.
Product Features
▶
Corrosion-Resistant Construction: Full SS316L contact parts with electropolished finish resist acidic and alkaline dye bath residues.
▶
Enhanced Ring Stack: 0.3mm precision gap with ceramic-coated moving rings for extended wear life in abrasive dye sludge.
▶
Variable Frequency Drive: Speed control from 1.5 to 4.5 RPM with automatic torque limiting for overload protection.
▶
Pneumatic Back-pressure: Adjustable discharge cone with position feedback for consistent cake dryness control.
▶
Self-Cleaning Cycle: Automated reverse rotation cleaning program for periodic removal of accumulated dye residues.
▶
Modbus Communication: Remote monitoring capability for integration with dye house SCADA systems.
Technical Specifications
Equipment ModelQXDL-351
Dry Sludge Capacity50-100 kg/h
Dimensions (L×W×H)3610 × 1100 × 1850 mm
Machine Weight1050 kg
Total Power1.85 kW
Screw Speed1.5-4.5 RPM (VFD)
Max Pressure0.75 MPa
MaterialsSS316L (contact parts)
Drive TypeHelical gear motor with torque limiter
ControlTouch panel with Modbus RTU
Application Scenarios
● Textile dyeing and printing wastewater
● Fabric finishing plant effluent
● Chemical fiber production sludge
● Leather tanning wastewater
● Paper mill color removal sludge
● Municipal wastewater with high dye load
Frequently Asked Questions
? How does this machine handle dye sludge with high chemical content? +
The QXDL-351 is constructed with SS316L stainless steel and specialized seals that resist corrosion from acidic and alkaline dye baths. The ring stack features a ceramic coating on moving rings, providing enhanced wear resistance against abrasive dye particles. The self-cleaning differential motion prevents chemical buildup, and the automated reverse rotation cycle can be programmed to remove accumulated residues.
? What is the optimal feed concentration for dyeing sludge? +
For optimal performance, feed sludge with solids concentration between 1.5 and 4 percent is recommended. This range allows the machine to achieve 20-28 percent DS cake while maintaining stable operation. Lower concentrations may require increased polymer dosing or reduced throughput, while higher concentrations (above 5 percent) may cause bridging at the inlet.
? How often should the ring stack be inspected in dyeing applications? +
Due to the abrasive nature of dye particles, ring stack inspection is recommended every 1,500 operating hours. Individual ring segments with clearance exceeding 0.35mm should be replaced. Under typical dye house conditions, the ring stack provides 12,000-15,000 hours of service life. Complete ring set replacement is advised when more than 25 percent of rings exceed wear limits.
? Can this machine handle batch-wise dyeing operations? +
Yes. The VFD drive with torque-based control automatically adjusts to fluctuating feed conditions typical of batch dyeing cycles. The machine can start, stop, and resume operation without manual intervention, maintaining consistent cake quality. The touch panel interface allows operators to store and recall parameters for different dye bath compositions.
Operational Notes & Safety Precautions
▣ Disconnect power before opening inspection ports or performing maintenance.
▣ Do not exceed maximum back-pressure of 0.75 MPa to prevent ring stack deformation.
▣ Lubricate drive chain every 400 operating hours with high-temperature grease suitable for dye house environments.
▣ Verify torque limiter calibration every 6 months; slip torque set to 110 percent of motor rating.
▣ Install upstream screening (1.5mm mesh) to prevent fiber and debris ingress.
▣ Ensure proper electrical grounding with resistance below 10 ohms.
Yangzhou Qinxin Environmental Protection Technology Co., Ltd.
Industry and trade integration · AAA contract-oriented · ISO 9001/14001/45001 · Global export to Southeast Asia

Equipment Model

 QXDL-351

Dry Sludge Treatment Capacity

50-100 Kg/h

Equipment Dimensions

 L3610mm × W1100mm × H1850mm

Machine Weight

 1050kg

Total Power Consumption

1.85 kW
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Yangzhou Qinxin Environmental Protection Technology Co., Ltd.

  • 14000+

    Factory Area

  • 18+

    Honorary Certificate

Yangzhou Qinxin Environmental Protection Technology Co., Ltd. is China Custom Printing and Dyeing Factory High Energy-saving Spiral Screw Sludge Dewatering Machine QXDL-351 Suppliers and Printing and Dyeing Factory High Energy-saving Spiral Screw Sludge Dewatering Machine QXDL-351 Company. This is an enterprise that combines industry and trade and is committed to research and development, production, and sales of environmental protection equipment, Our company is mainly engaged in Printing and Dyeing Factory High Energy-saving Spiral Screw Sludge Dewatering Machine QXDL-351, stacked screw sludge dewatering machines, PAM integrated dosing devices, sludge low-temperature drying systems, solid-liquid separators, other sewage treatment equipment, mainly serving municipal, food, petrochemical, aquaculture, papermaking, leather, brewing, printing and dyeing, chemical, pharmaceutical, medical and other industries. Adhering to many years of practical experience and research and development in the production of environmental protection equipment, the company is AAA-level contract-oriented and trustworthy and has obtained a number of patents and quality management system certifications, environmental management system certifications, and occupational health and safety management system certifications.

HONOR & CERTIFICATE

Our products have obtained, include EC-Type Examination Certificate, BV, MODE, DNV, GL Certificate, EC Attestation of Conformity, Certificate of Type Approval for Marine Product and Lloyd’s Register Quality Assurance.

  • Environmental Management System Certificate
  • Environmental Management System Certificate
  • Quality Management System Certificate
  • Quality Management System Certificate
  • Occupational Health & Safety Management System Certificate
  • Occupational Health & Safety Management System Certificate
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