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How to fully understand the application of stacked screw sludge dewatering machine
- 2020-10-21-

How to fully understand the application of stacked screw sludge dewatering machine


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.


working principle:


1. Concentration: When the screw pushing shaft rotates, the multiple solid and living laminations arranged on the periphery of the pushing shaft move relatively. Under the action of gravity, water is filtered out from the gap of the relatively moving laminations to achieve rapid concentration.


2. 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, and the gap between the rings gradually decreases, and the volume of the spiral cavity Continuously shrinking; under the action of the back pressure plate at the outlet, the internal pressure gradually increases. Under the continuous 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 the sludge Continuous dehydration.


3. 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.


Construction principle:


The main body of the dewatering machine is a filter device formed by stacking a fixed ring and a moving ring, and the screw shaft penetrates 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.