The screw press sludge dewatering machine adheres to principles such as force and water in the same direction, thin-layer dewatering, appropriate pressure application, and extended dewatering path, solving technical challenges such as clogging in previous generations of dewatering equipment, inability to process low-concentration and oily sludge, high energy consumption, and complex operation, achieving the goal of efficient and energy-saving dewatering. The dewatering machine can achieve efficient flocculation under fully automatic operation and continuously complete sludge concentration and squeezing dewatering, eventually 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 Principles

The Screw Press Sludge Dewatering Machine integrates an automatic control cabinet, coagulation and conditioning tank, sludge thickening and dewatering unit, and collecting tank into one. 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 thickening section, and the rear section is the dewatering section. The gap between the fixed and floating rings, as well as the pitch of the spiral shaft, gradually decreases from the thickening section to the dewatering section. The spiral shaft continuously sweeps the gap with the rings to prevent clogging. As the spiral shaft rotates, it pushes the sludge from the thickening section to the dewatering section, and under the pressure of the back pressure plate, it generates a significant internal pressure, continuously reducing the volume to achieve complete dewatering.