Mechanical Cake Multipal Screw Stack Disc Dewatering Wastewater

Sludge Dehydrator Description

Multidisc sludge dewatering screw press is integrated with sludge flocculation tank which efficiently mixes the input sludge with the optimal dose of flocculation. This flocculated sludge then enters the screw body which in the initial stage has more open area to dewater the separated water faster. As screw rotates at a rpm which is set to give optimum output carries the dewatered concentrated sludge forward towards the end.As screw is been gradually increasing making the valley / volume available for the sludge narrow towards the outlet so that flocculated sludge that is concentrated by gravity filtration is further dewatered by compression.

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

Sludge Dehydrator Widely Use

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.

Sludge Dehydrator Features

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

All range of industries ETP & STPSimple 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