Yushun Volute Dewatering Press

Volute Dewatering Press is a new solid – liquid separation equipment for sludge thickening and dewatering. It uses the screw extrusion principle, strong extrusion pressure generated by the screw diameter and pitch change, and tiny gap between the moving ring and the fixing ring to achieve the sludge extrusion dehydration.

This kind of machine solves  series technical problems such as easy clogging of the for sewage desliming machine, unable to deal with low concentration, high energy consumption, complicated operation and so on. Realizing energy efficient dehydration. It's clog-free and can saving the cost of sewage plant construction.

It is widely used in city mixed raw sewage, food & beverage industry, chemical industry, stone & mine-sewage, tannery sewage, paper & pulp sewage, plating sewage, print & dyeing sewage, power plant, chemical industry and so on.

Working Process 

Volute sludge dewatering press has automatic control cabinet, flocculation conditioning tank, sludge dewatering and collecting water tank. Its a filtering device formed by fixed rings, moving rings, and a spiral in the middle.

Sludge goes from the feed inlet into the metering tank, moved to the flocculation mixing tank, then moved to the dewatering tank,  by the push of the spiral shaft rotary vane, the pitch is gradually reduced, the pressure is increased, the pressure difference makes sludge to be dehydrated, water outflow from fixed rings and moving rings. The device has self- cleaning function between the fixed rings and the moving rings, and the clearance between the filter and the filter is prevented from being blocked. After sludge is full dehydration, sludge cake is discharged from the discharge port under the action of the propeller shaft.




* Widely Application Suitable for all kinds of sludge, sludge concentration from 2000mg/L to 50000mg/L. 

* Clog-Free With self-cleaning function , clogging is avoided. It can handle oily sludge without any trouble while separating the water from the sludge easily. Also, don't need large quantity of flushing water, reduce water consumption.  

* Small Type Design It includes electric cabinet, dosing tank, flocculation mixing tank etc. The compact appearance takes small space, easy on repairing, replace and moving.  

* Operation Easy It can operate automatically for 24 hours, unmanned. Daily maintenance is easy and saving time.    

* Durability Machine is made of 304SS, lengthen the using life, the only parts needed to replace are screw shaft and moving rings.