GN screw press sludge dewatering machine is a kind of economical and environmentally friendly sludge dewatering equipment. It is a new type of sludge extrusion dewatering equipment using the principle of screw extrusion, through the strong compression force generated by the change of diameter and pitch of the screw, and the small gap between the floating ring and the fixed ring, to perform solids -liquid separation. GN dewatering screw press is composed of the fully automatic control cabinet, flocculation modulation box, sludge thickening, and dewatering device, and liquid collecting tank. GN dewatering screw press has automatic control technology, which can realize fully automatic flocculation operation and continuously complete sludge thickening and squeezing, finally return or discharge collected filtrate.
GN screw press dewatering machine is widely used in wastewater treatment projects of municipal, aquaculture, food, starch, petroleum, pharmaceutical, chemical, paper, leather, and other industries.
Features of screw press dehydrator machine:
- The main body of the screw press sludge dewatering machine is a filtration device composed of a fixed ring and a movable ring, in which the screw axis runs. The front section is for concentration and the rear section for dehydration.
- The filtrate gap formed between the fixed ring and the moving ring of the dewatering screw press and the pitch of the screw shaft gradually decreased from the concentrating section to the dewatering section.
- The rotation of the screw press shaft not only pushes the sludge from the concentration section to the dewatering section but also continuously drives the moving ring to clean the filter space and prevent clogging.
- After gravity concentration in the concentration section, the sludge is transported to the dewatering section. In the process of advancing, with the gradual decrease of the filtrate space and the pitch of the screw, and the locking effect of the backpressure plate, the large internal pressure is generated; leader, the volume is constantly reduced, in order to achieve the purpose of complete dehydration.
- The dewatering screw press is generally applicable to sludge concentration of 2000mg/L-50000mg/L