Low Infrastructure Investment Cost Dewatering Screw Presses Machine for Sewage Treatment

Basic Specifications

Dewatering Screw Press Overview

Working Principles

The conditioned sludge flows into the filter zones from the flocculation tank and is pushed forward to the discharging end. With the gaps between the thread of the shaft getting even narrower, the pressure on the sludge increases significantly. Water is then separated from the sludge, flowing out through the gaps between moving rings and fixed rings. The continuous movement of the rings cleans the gaps, preventing blockage. The filtered sludge cakes are finally discharged from the end.

System Description

This Multi-Disc Sludge Dewatering Screw Press features a clog-free structure that can effectively reduce the need for sedimentation and thickening tanks, thereby saving construction costs. Controlled automatically by PLC, it represents a modern technology replacing traditional filter presses like belt and frame presses. Its low screw speed ensures minimal power and water consumption compared to centrifuges.

Key Applications

Core Advantages

• Enclosed design to minimize odors and noise
• Very low wash water usage (approx. 1/8 of belt press)
• Low power consumption (approx. 1/20 of centrifuge)
• High cake solids and minimal operator requirement
• Easy to operate with Auto Start-up, Run, and Shutdown
• Optional touchscreen operation and monitoring systems

Technology Advantages

Sludge Concentration 2000mg/L - 50000mh/L: The configuration features an exclusive spiral plate for pre-concentration, making it ideal for treating low-concentration sludge. It replaces gravity-type dehydrators to realize efficient concentration, combining flocculation and concentration into one easy step.

Self-Cleaning Mechanism: Unlike traditional equipment, the dewatering screw press prevents clogging via moving rings that clean themselves during operation. This makes it particularly effective for oily sludge treatment without needing high-pressure cleaning water.

Infrastructure & Operation

Technical Parameters

Packaging & Delivery