What are the classifications of sludge dehydrators?

Sludge dehydrators are mainly divided into belt type sludge filter press, centrifugal sludge dehydrator, Diehl sludge dehydrator and plate and frame type sludge dehydrator; Among them, the stacked screw sludge dehydrator has the advantages of compact design, small floor area and low operation cost. The following describes in detail "the classification of sludge dehydrator and the advantages of stacked screw sludge dehydrator".

1、 Classification of sludge Dehydrators

1. Belt sludge filter press: it is composed of two tensioned filter belts with sludge layer at the top and bottom. Its shape is like S-shape. It passes through a series of roller cylinders with circulation to roll and shear the sludge. Because of its own tension, it separates the capillary water hidden in the sludge layer and has achieved the function of sludge dewatering.

2. Centrifugal sludge dehydrator: it is composed of spiral device materials with transfer and hollow rotating shaft. The sludge is sent to the rotating drum. The hollow rotating shaft generates centrifugal force. Under high-speed rotation, the production is thrown into the drum cavity to form solid-liquid separation. Because the specific gravity is different, the sludge is transmitted to the conical end of the drum and continuously discharged from the outlet under the promotion of the spiral conveyor; The liquid continuously overflowed from the weir mouth to the outer liquid ring layer of the drum is discharged by gravity.

3. Dieschner sludge dehydrator: a fixed ring, formed by the penetration of the screw shaft in this. It receives gravity concentration and the sludge is subjected to the internal pressure formed by the back pressure plate in the propulsion process, so as to realize dehydration. The filtrate pushes out the filter gap formed by the fixed ring and the moving ring, and pushes out the mud cake from the end of the dehydration section.

4. Plate and frame sludge dehydrator: the sludge is squeezed by the plate and frame through the high-pressure pump. In the closed state, the water in the sludge is discharged through the filter cloth, so as to achieve the purpose of dehydration.

2、 Advantages of spiral sludge dehydrator

1. Compact design and small floor area

The stacked screw sludge dehydrator covers a very small area and is suitable for various installation environments. It can connect lines according to the drawings, which is simple and easy to use.

2. Low operation cost, water saving and power saving

It can realize self-cleaning and save a lot of cleaning water. The power consumption is very small. In the case of the same processing quantity, the power consumption is only 5% of that of the centrifuge

3. Simple operation and long service life

Good stability, few daily maintenance items and simple maintenance operation.

4. Wide application range and strong applicability

It can be widely used in municipal sewage, chemical industry, petroleum, tap water, printing and dyeing and paper industry.

The above is the introduction of "classification of sludge dehydrators and advantages of stacked screw sludge dehydrators". Please feel free to contact us if you have any questions.