The main body of the dehydrator is a filter device formed by a fixed ring and a swimming ring overlapping each other and a spiral shaft running through them.The former part is the concentration part and the latter part is the dehydration part.
A small moving gap is formed between the fixed ring and the swimming ring, it filters the filtrate. The inner cavity formed by spiral axis and ring plate is filled with flocculation particles, as the end back platen rotates, it delivers and extrudes to form sludge cakes.
As the spiral axis rotates and pushes, it keeps moving with the swimming ring to clean up the gaps and prevents clogging.
When the equipment is running, the sludge enters the sludge inlet, pushed by the helical shaft blades, and concentrated by gravity in the enrichment section to be transported to the dehydration section. In the process of moving forward, with the gradual reduction of filter slot and screw pitch, as well as the blocking effect of the back pressing plate, the sludge generates internal pressure, and the volume is continuously reduced, so as to achieve the purpose of full dehydration.
