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High-Torque Screw Press Dewatering System
The Energy-Efficient Alternative to Centrifuges for Large Plants.
- Item 1:Maximum Dryness: Pneumatic back-pressure cone ensures cake dryness up to 25%-30%.
- Item 2: Energy Saver: Consumes 70% less energy than decanter centrifuges.
- Item 3: Slow Speed: Operates at < 1.0 RPM, ensuring minimal wear and noise..
Traditional decanter centrifuges are notorious for their massive electricity bills and loud noise. Belt presses require huge amounts of wash water and frequent belt replacements. Operators need a solution that delivers dry cake without the high OPEX.
Our Screw Press uses a tapered screw shaft and a pneumatic back-pressure cone to gradually increase pressure on the sludge. This slow, high-torque process squeezes out free and bound water, delivering superior cake dryness with minimal energy and water usage.
| Performance Specs | Feiran EP Standard |
|---|---|
| Cake Dryness | Up to 30% DS (High) |
| Motor Power | 0.55 kW – 11 kW (SEW/NORD) |
| Wash Water | Intermittent (Self-cleaning basket) |
| Shaft Material | SUS304 + Hard Facing (Stellite) |
Q1: How is it different from the Volute (Multi-disk) Press?
A: The Volute Press uses moving rings for dewatering, ideal for oily and small-scale sludge. The Screw Press uses a perforated basket and a back-pressure cone, providing higher pressure and torque, making it better suited for larger municipal plants requiring maximum cake dryness.
Q2: What is "Hard Facing" protection?
A: The edges of the screw flight are welded with a special wear-resistant alloy (Stellite/Tungsten Carbide). This protects the stainless steel from abrasion, ensuring the screw lasts for 10+ years even with gritty sludge.
Q3: Can it run fully automatically?
A: Yes. The Feiran EP system includes a Siemens PLC that controls polymer dosing, sludge feed, and the washing cycle automatically based on torque feedback.
Need finer screening downstream? Check our Volute Sludge Dewaterers