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What are the technological processes of the stacked screw sludge dewatering machine?

What are the technological processes of the stacked screw sludge dewatering machine?

Dec 04, 2019

After the flocculation sludge dewatering machine has undergone flocculation experiments, the matching flocculant types and dosages are determined. If two flocculants are needed to adjust the flocculation, it is advisable to choose a dehydrator with two flocculation mixing tanks. Mixing equipment should be set in the sludge tank. Before and during the operation of the dewatering machine, the sludge must be mixed to ensure that the sludge concentration is relatively stable.


Before operating the dehydrator, the flocculant solution should be infused with the infusion equipment. The normal dilution factor of the polymer flocculant is 500-1000 times. The sludge goes through the sludge conveying pump, the brewed flocculant goes through the dosing pump, and is added to the flocculation mixing tank according to the corresponding share, and is fully mixed by the mixer to form alum flowers, and the concentrate is concentrated by gravity, and the filtrate Drained from the filter in the thickening section. The filtrate has a low solid content and is directly returned to the original pond.


From the extraction of sludge, the injection of liquid medicine, and the discharge of sludge cake, all of them are actively controlled. Through the electric control cabinet, it is linked with the medicine infusion machine, the mud pump, and the dosing pump. 2. The filter belt is deviated or other phenomena that affect the process. The daily maintenance and protection are concise, and continuous unmanned operation can be performed for 24 hours.


The stacked screw sludge dewatering machine can be widely used in sludge dewatering in various industries such as municipal sewage, food, beverage, slaughtering, printing and dyeing, petrochemical, papermaking, leather, pharmaceutical and other industries. The equipment is suitable for various types of sludge with high and low viscosity.