Product Details

The screw press sludge dewatering machine is specifically designed for the efficient concentration and dewatering of liquid sludge generated during the wastewater treatment process. Typical applications in wastewater treatment plants include the dewatering of concentrated or unconcentrated waste activated sludge (WAS), digested sludge produced by aerobic or anaerobic processes, and dissolved air flotation (DAF) sludge.
The screw press sludge dewatering machine adopts the automatic cake filtration renewal technology, replacing the traditional filter screen filtration, ensuring the continuous and stable separation effect of sludge and water in the dewatering machine. Through the changes in the screw diameter and pitch, as well as the tiny gap between the movable ring and the fixed ring, a powerful squeezing force is generated to achieve the extrusion and dewatering of the sludge, which is a new type of solid-liquid separation equipment.

Workflow

(1) The sludge is transported to the feed inlet by the sludge conveyor.
(2) The sludge is transported to the flocculation tank through the metering tank and is fully mixed by the agitator.
(3) After large flocs are formed, the sewage is transported to the screw press.
(4) The flocs move from the concentration zone to the dewatering zone under the action of gravity.
(5) The gap between the movable ring and the fixed ring becomes narrower, the pressure of the end plate increases, the dewatering effect is enhanced, and finally the filter cake is discharged.

Features

(1) Small footprint. It can be installed in places where other technologies cannot be installed.
(2) No clogging. Due to the movement of the fixed ring and the movable ring, it has self-cleaning function. The common clogging phenomenon is avoided. There is no difficulty in handling oily sludge, and it is easy to separate water from the sludge. Most importantly, a large amount of flushing water is not required during the sludge dewatering process, and there is no odor or secondary pollution.
(3) Full automatic control. The sludge dewatering device does not require easily clogged devices such as filter cloths or filter holes, and is easy to operate. It can be set to run automatically through the electrical control cabinet.
(4) Operation cost: Integrated design, compact structure, greatly saving operation costs; 24-hour fully automatic unmanned operation, greatly reducing labor costs; The equipment has a small footprint, reducing civil engineering investment.
(5) Lightweight and durable: The machine body is almost entirely made of stainless steel, and the replaceable parts are only the screw shaft and the movable ring. It has a long service life and is sturdy and durable.

Applications

Municipal sewage
Slaughterhouses
Wastewater from the metallurgical industry
Oily wastewater
Printing and dyeing sewage
Metal processing sewage
Wastewater from mining and stone processing
Electronic wastewater treatment.