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Take you all-round understanding of stacked screw sludge dewatering machine

Take you all-round understanding of stacked screw sludge dewatering machine

Jul 16, 2020

The stacked screw sludge dewatering machine can be widely used in municipal sewage treatment projects and water treatment systems in petrochemical, light industry, chemical fiber, paper, pharmaceutical, leather and other industrial industries. The actual operating conditions have proved that the stacked screw sludge dewatering machine can create considerable economic and social benefits for customers. Today, I will introduce the product of the stacked screw sludge dewatering machine.


Concentration: When the screw pushing shaft rotates, the multiple solid and living laminations located on the periphery of the pushing shaft move relative to each other. Under the action of gravity, water is filtered out of the relatively moving lamination gap to achieve rapid concentration. Dehydration: The concentrated sludge moves forward with the rotation of the screw shaft; along the direction of the mud cake outlet, the pitch of the screw shaft gradually decreases, the gap between the rings gradually decreases, and the volume of the spiral cavity keeps shrinking ; Under the action of the back pressure plate at the outlet, the internal pressure gradually increases. Under the continuous operation of the screw drive shaft, the water in the sludge is squeezed and discharged, and the solid content of the filter cake continues to increase, finally realizing continuous sludge Dehydrated. Self-cleaning: The rotation of the screw shaft pushes the moving ring to continuously rotate. The equipment relies on the movement between the fixed ring and the moving ring to achieve a continuous self-cleaning process, thereby cleverly avoiding the common blocking problem of traditional dehydrators. The main body of the dewatering machine is a filter device formed by stacking a fixed ring and a moving ring with a spiral shaft passing through it. The front section is the concentration section and the rear section is the dehydration section.


The filter slit formed between the fixed ring and the moving ring and the pitch of the screw shaft gradually decrease from the concentration part to the dehydration part. While the rotation of the screw shaft pushes the sludge from the thickening section to the dewatering section, it also continuously drives the swimming ring to clean the filter gap to prevent clogging.