The volute sludge dewatering machine, also known as a multi-disk screw press, has emerged as the preferred technology for sludge dewatering in municipal and industrial wastewater treatment applications.

How Volute Dewatering Works

The volute technology uses a continuously rotating screw shaft with interleaving screw flights inside a cylindrical screen. As sludge moves through the machine, the screw diameter gradually increases, compressing the sludge and expressing water through the screen slots.

Key Features and Benefits

Low Speed Operation

Typical speed of 1-3 RPM results in minimal wear, low energy consumption, and extended equipment life.

Self-Cleaning Design

The unique volute (spiral) shape of the screw flights provides continuous cleaning of the screen, preventing clogging even with variable sludge characteristics.

High Solids Capture

Achieved 95%+ solids capture rate with cake solids content of 15-25% depending on sludge type.

Low Polymer Consumption

Requires significantly less polymer (30-50% less) compared to belt filter presses or centrifuges.

Continuous Operation

24/7 continuous operation with minimal maintenance requirements.

Technical Specifications

• Capacity range: 5 – 5,000 kg DS/hour per unit
• Cake solids: 15-25% depending on sludge type
• Screen aperture: 0.3mm – 0.5mm
• Power consumption: 0.4-0.8 kW per ton DS processed

Why Choose Feiran EP Volute Machines?

Our volute sludge dewatering machines combine German engineering precision with cost-effective Chinese manufacturing:

• German DIN standard design and manufacturing
• SUS304/316L stainless steel construction
• Competitive pricing with premium quality
• Full technical support and spare parts availability

Contact Us

Email: sale@yixingenviroequipment.com