The main part of the dehydrator is a filter device that a screw runs through the stacked fixed

rings and moving ring.

The small gaps between fixed rings and moving ring can filter the sludge, and the

lumenbetween screw and rings is filled with polymer grains. The moving ring transfers the

sludge to the end of the machine with pressure and extrudes sludge cakes.

The running of the screw drives the moving ring to clean the gaps and avoid jam.

Work process:

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.

Advantage

1) Without secondary pollution

The screw shaft rotational speed about 2-3r/min, no vibration and noise is very small ; The

laminated with self - cleaning function, plugging does not occur, only a small amount of water

washing, without secondary pollution, and sludge at such a slow running under the operating

condition, the smell does not spread, thereby creating a great work environment!

2) Contactless, Wear Free Structure Design

Volute sludge dewatering uses the contactless wear free structure between the disks and

screw shafts, thus the service life of the Screw shafts and the rings will be greatly extended.

The treatment capacity of equipment and processing effects can be improved in combination

with other optimization design.

3) Decrease Capital Investment

Volute sludge dewatering can treat sludge in aeration tank and secondary sedimentation tank

without setting sludge thickeners. Therefore, this can decrease the total investment, avoid

phosphorus release from the sludge thickeners and sludge storage tanks and enhance

phosphorus removal effect of the wastewater treatment system.

4) High Resistance to Oily Sludge

The self-cleaning mechanism and stainless steel structure enables MDS to be ideal to

dewater oily sludge, which easily causes clogging and is difficult to treat with other types of

dewatering equipment.

Technical parameters