The Roll Microfiltration Dewatering Separator is a common equipment used in wastewater treatment. Its main principle is to remove water from sludge by using a rotating spiral shaft, achieving the dewatering purpose. This dewatering method effectively reduces sludge volume, increases solid content, and decreases sludge transportation and disposal costs. Specifically, the equipment is composed of components such as the concentration pond, spiral screw machine, filter components, and drainage system.

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Firstly, the wastewater is subjected to preliminary coagulation and concentration, then mixed by a blender to achieve a more uniform sludge. Subsequently, the concentrated sludge is fed into a screw press, which contains multiple spiral shafts and a pig manure roller microfiltration wet-dry separator. As the sludge moves forward with the rotation of the spiral shafts, it forms a layer of small voids on the outer side of the shaft. The water exits along these voids, while the sludge remains on the spiral shaft. Finally, the water is drained out through the drain port, achieving the dehydration purpose.

Additionally, the screw press sludge dewatering machine is equipped with a control system that utilizes a programmable logic controller (PLC) to regulate parameters such as the rotational speed, inclination angle, and dewatering time of the spiral shaft, ensuring stable and reliable dewatering results. The machine features a simple structure and easy operation, allowing for flexible adjustments to accommodate various types of sludge treatment. Moreover, using the screw press sludge dewatering machine can achieve sludge reduction and stable treatment, while significantly reducing the overall cost of sludge disposal, making it one of the more popular wastewater treatment equipment options currently available.

Desiccation Principle: After sludge is gravity thickened in the concentration section, it is transported to the dewatering section. The video of the drum microfiltration wet-dry separator shows that as it progresses, the filter gap and screw pitch gradually decrease, and the blocking action of the backup plate creates a significant internal pressure. The volume continuously shrinks, achieving the purpose of complete dewatering.

The narrow moving filter gap formed between the fixed ring and the floating ring filters the filtrate. The inner cavity formed by the helical shaft and ring plates is filled with floc particles, which are conveyed and compressed into a mud cake as they rotate towards the end back plate. The rotating helical shaft drives the movement of the floating ring up, down, left, and right to sweep the filter gap, preventing blockages.

The principle of the drum microfiltration dewatering separator often involves squeezing and filtration, so these two aspects can affect the sludge's consistency. Additionally, the inherent properties of the sludge itself can also have an impact. Below, we will discuss the reasons for the thin consistency of the sludge discharged from the spiral separator from these two major directions.

Direction 1: Sludge

① High organic matter content in sludge, with a large amount of water that cannot be squeezed out by conventional mechanical pressure

② Sludge is quite thick, or contains some oily moisture that is encapsulated and cannot be squeezed out.

③ Poor sludge flocculation effect, the flocculated sludge is rather loose, possibly due to issues with the reagent selection, insufficient preliminary sludge treatment, or too short reaction time of the reagent.

Direction Two: Equipment

① The manufacturer of the screw press machine lacks mature technology, resulting in insufficient pressure on the sludge.

② Insufficient extrusion time, which is mainly related to the length of the dehydration body and the speed of the main shaft.

③ The filtration cavity of the dewatering main body has insufficient permeability due to the stacking of stainless steel rings in the screw press filter element, thus requiring a high process standard to ensure water permeability while minimizing wear.

Weicheng Roller Microfiltration Dry and Wet Separator - Hengman Environmental Protection - Roller Microfiltration Dry and Wet Separator Accessories are provided by Dezhou Hengman Environmental Protection Technology Co., Ltd. Dezhou Hengman Environmental Protection Technology Co., Ltd. boasts strong capabilities and reliable reputation, having accumulated a large number of loyal customers in the wastewater treatment equipment industry in Dezhou, Shandong. Hengman Environmental Protection, with a meticulous work attitude and a continuous commitment to innovation, joins hands with you to stride towards brilliance and create a beautiful future together!