Application scope of spiral sludge dehydrato

  1、 Working principle of the equipment the screw stacking main body of the dehydrator is a filtering device formed by the mutual stacking of the fixed ring and the swimming ring and the penetration / penetration of the screw shaft The front section is the concentration section and the rear section is the dehydration section
The filter gap formed between the fixed ring and the swimming ring and the pitch of the screw shaft gradually decrease from the concentration part to the dehydration part
The rotation of the screw shaft not only drives the sludge to be transported from the thickening section to the dewatering section, but also continuously drives the swimming ring to clean the filter joint to prevent blockage

2、 Sludge dewatering process
1
Concentration: when the spiral driving shaft rotates, the multi / heavy solid live laminations arranged on the periphery of the driving shaft move relatively
Under the action of gravity, water is filtered out from the relatively moving lamination gap to realize fast / fast concentration

2
Dewatering: the concentrated sludge moves forward with the rotation of the screw shaft; Along the outlet direction of the mud cake, the pitch of the spiral shaft decreases gradually, the gap between the rings also decreases gradually, and the volume of the spiral cavity shrinks continuously; Under the action of the back pressure plate at the outlet, the internal pressure increases gradually
Driven by the continuous operation of the spiral drive shaft in turn, the water in the sludge is squeezed and discharged, and the solid content of the filter cake increases continuously, so as to realize the continuous dehydration of the sludge

3
Self cleaning: the rotation of the spiral shaft drives the traveling ring to rotate continuously
The equipment realizes the continuous self-cleaning process by relying on the movement between the fixed ring and the traveling ring, so as to avoid the common blockage problem of the traditional dehydrator

3、 Scope of application
1
It is applicable to sludge from municipal sewage, food, beverage, chemical industry, leather, welding materials, papermaking, printing and dyeing, pharmaceutical and other industries

2
It is applicable to the dewatering of high and low concentration sludge
When dewatering low concentration (2000mg / L ~) sludge, there is no need to build concentration tank and storage tank, so as to save the construction cost and reduce the release of phosphorus and the generation of anaerobic odor

4、 Product features
1
The design is compact
The dehydrator includes an electric control cabinet, a metering tank, a flocculation mixing tank and the main body of the dehydrator

2
Small floor space, convenient for maintenance and replacement; Small weight, easy to handle

3
It has the function of self-cleaning
There is no need to clean to prevent clogging of filter joints, reduce flushing water consumption and reduce the burden of internal circulation / circulation

4
Be good at dewatering oily sludge