Operation process and rotation requirements of automatic sludge dewatering machine

- Jan 17, 2019 -

The automatic sludge dewatering machine is different from other dewatering machines when it is used. The laminated sludge dewatering machine is in the form of a dehydrator equipped with a thickener, and can also be used when the inflow sludge is at a low concentration of 2,000 to 5,000 mg/L. Dewatering is carried out, and the amount of outflow is adjusted by operating a telescopic valve, and the sludge concentration can be adjusted at a concentration of 3%.

The automatic sludge dewatering machine is transferred to the sludge dewatering machine after being concentrated by the thickener before flowing into the dewatering machine. The water content and the treatment amount increase effect are compared with the centrifugal speed of the centrifugal dewatering machine of 3,000 rpm. Rotating at a low speed of around 2 rpm, the noise is very low and there is almost no vibration.

Working principle of automatic sludge dewatering machine

1. Concentration: When the screw pushes the shaft to rotate, the multiple solid laminates on the periphery of the push shaft move relative to each other. Under the action of gravity, water is filtered out from the relatively moving lamination gap to achieve rapid concentration.

2. Dehydration: The concentrated sludge moves forward with the rotation of the screw shaft; along the exit direction of the mud cake, the pitch of the screw shaft gradually becomes smaller, and the gap between the ring and the ring gradually becomes smaller, and the volume of the spiral cavity becomes smaller. Continuous shrinkage; under the action of the back pressure plate at the outlet, the internal pressure is gradually enhanced. Under the continuous driving of the screw push shaft, the water in the sludge is squeezed out, the solid content of the filter cake is continuously increased, and the continuous dewatering of the sludge is finally achieved.

3. Self-cleaning: The rotation of the screw shaft pushes the swimming ring to rotate continuously. The device relies on the movement between the fixed ring and the swimming ring to realize a continuous self-cleaning process, thereby cleverly avoiding the clogging problem common in the traditional dehydrator.