The spiral type sludge dewatering machine is a kind of water treatment system, which is widely used in municipal wastewater treatment engineering, petrochemical, light industry, chemical fiber, paper making, pharmaceutical, leather and other industries. The actual operation shows that the sludge dewatering can create considerable economic benefits and social benefits for the customers.
Multi-disc sludge press utilize both gravity filtration and screw compression techniques， Multi-disc Screw Press Dehydrators can cope up with a wide range of sludge concentrations from 0.2% to 10%, and also stably can dewater sludge that has high oil content.Multi disc are arranged one after other with alternate disc being moving and fixed.
Sludge Dehydrator Process
Thickening: When the shaft is driven by the screw, moving rings around the shaft move up and down relatively. Most water is pressed out from the thickening zone and fall down to the filtrate tank for gravity;
Dewatering: The thickened sludge moves forward continuously from the thickening zone towards the dewatering zone. With the pitch of the screw shaft thread getting narrower and narrower, the pressure in the filter chamber increases higher and higher. In addition to the pressure generated by the back-pressure plate, the sludge is greatly pressed and dryer sludge cakes produce;
Self-cleaning: The moving rings rotates continuously up and down under the pushing of the running screw shaft while the gaps between the fixed rings and moving rings are cleaned to prevent from clogging that happens frequently for traditional dewatering equipment.
Sludge Dehydrator Model
DS capacity kg/h
Sludge capacity m3/h(2-50g/L)
Spiral diameter mm
Discharge Distance mm
Size L*W*H mm
Washing Q L/h
Sludge DehydratorWidely Use
Applicable sludge concentration of 2000mg/L-50000mg/L. Most especially for the oily sludge. Fully Automatic Control Combining with the auto control system, the machine runs very safely and simply and can be programmed according to the requirement of the users. It can operate automatically for 24 hours, unmanned.
Automatic continuous operation
Compact design with flocculation and dewatering
Low power and water consumption
Low operation cost
No filter cloth, no clogging
No need for sludge thickener
Easy operation and maintenance
No vibration and noise
Sludge Dehydrator Application
Simple arrangement Low Power Consumption Simple and short start-up and shut down procedures Continuous operation. Hence continuous output can be obtained Process can be automized Only electricity and water supply for cleaning is required, and that too in less amount For a multi-channel machine, one or more channels may be removed for maintenance purposes, while the machine with the remaining channels may still be operated. No clogging. Cleaning is automized and is easy Long life of discs No external lubrication system is required Flocculator built in the Screw press