The Screw Press Dewatering Machine adheres to principles such as water and force in the same direction, thin-layer dewatering, appropriate pressure application, and extended dewatering path, overcoming technical challenges such as clogging in previous dewatering equipment, inability to process low-concentration sludge and oil-containing sludge, high energy consumption, and complex operation. It achieves a highly efficient and energy-saving dewatering goal. The machine can achieve efficient flocculation under fully automatic operation conditions and continuously complete sludge concentration and pressing dewatering processes, ultimately recycling or discharging the collected filtrate. It is widely used in municipal wastewater treatment projects and water treatment systems in industries such as food, starch, oil, pharmaceuticals, chemicals, papermaking, and leather.

Structural Principle

The Screw Press Sludge Dewatering Machine integrates an automatic control cabinet, a coagulation and conditioning tank, the main body of sludge concentration and dewatering, and a collection tank. The main body consists of stacked fixed rings and floating rings, with a spiral shaft running through to form a filtration device. The front section is the concentration section, and the rear section is the dewatering section. The filter gap formed between the fixed and floating rings, as well as the pitch of the spiral shaft, gradually decreases from the concentration section to the dewatering section. The spiral shaft continuously drives the rings to sweep the filter gap, preventing clogging. As the spiral shaft rotates, it pushes the sludge from the concentration section to the dewatering section, and under the action of the back pressure plate, it generates a high internal pressure, with the volume continuously shrinking to achieve thorough dewatering.