The sludge dehydrator is mainly divided into plate frame type sludge dehydrator, belt type sludge dewatering machine, centrifugal sludge dewatering machine and stack sludge dewatering machine; It has a new separation technology, energy saving and water saving, and the treatment capacity doubles. The following details are "classification and technical analysis of sludge dehydrator".
1、 Classification of sludge dehydrator
1. Plate frame type sludge dehydrator
In the closed state, the sludge driven by high pressure pump is squeezed by the plate frame, so that the water in the sludge is discharged through the filter cloth to achieve the purpose of dehydration.
2. Belt sludge dehydrator
The sludge layer is carried by two tension filter belts, which pass through a series of regular roller rollers in S-shape. The pressing and shearing force of sludge layer is formed by the tension of the filter belt itself, and the capillary water in the sludge layer is squeezed out, thus sludge dewatering can be realized.
3. Centrifugal sludge dehydrator
The sludge is sent into the drum by the hollow shaft and is dumped into the drum cavity under the centrifugal force generated by high-speed rotation. Because of the different specific gravity, solid-liquid separation is formed. The sludge is pushed by the auger, and the cone end of the drum is discharged continuously by the outlet; The liquid in the liquid ring layer is discharged from the weir mouth to the outside of the drum by gravity.
4. Stack sludge dehydrator
The fixed ring and the traveling ring are stacked with each other, and the spiral axis runs through the main body of the filter. The full dehydration is realized by gravity concentration and the internal pressure formed by back pressure plate during the propulsion process. The filtrate is discharged from the filter joint formed by the fixed ring and movable ring, and the mud cake is discharged from the end of the dehydration part.
2、 Technical analysis of sludge dehydrator
1. New separation technology
A new separation technology of concentration and dehydration was formed by the combination of spiral pressure and dynamic and static ring, which added an advanced dehydration mode choice to the field of environmental protection sewage treatment in China.
2. Energy saving and water saving
Because the continuous wrong kinetic energy of the dynamic and static ring can achieve the self-cleaning function in the cylinder, the purpose of not easily blocking the filter clearance is realized. It replaces the high-pressure flushing of the old generation filter cloth and belt filter plate, which greatly saves industrial water (13000 tons / year water saving for single machine). The main screw shaft running at low speed (3-5 RPM) reduces the mechanical wear of the equipment and extends the service life of the equipment. The power consumption of the main machine is less than 1.1kw/hr, and the power consumption of the single machine reaches 50000 degrees / year.
3. Double the processing capacity
The treatment capacity of the second generation dehydrator is twice as much as that of the previous generation. A 303 unit can solve the sludge volume (120-150 tons) generated by 10000 tons of sewage and can be matched with the process of sludge dewatering to 50-40% in depth. A single set of processes can solve the sewage treatment capacity of 10000-30000 tons.
4. Green and environmental protection
The whole machine is sealed and operated, and can be observed directly. The shell is easy to dismantle and dismantle, without sewage leakage, secondary pollution and noise ≤ 45 dB, which makes the sludge room environment beautiful and civilized production.
The above is the introduction of "classification and technical analysis of sludge dehydrator". Please contact us at any time if you have any questions.