Ireland+Screw Press+Water Plant

September 6, 2022 Ireland

Product: Screw Press

Country: Ireland

Application: Water Plant

Why water plant needs screw press:

In the production process of water plants, a large amount of sewage will be produced. This part of the sewage mainly comes from the sludge discharge water of the sedimentation tank and the backwash wastewater of the filter tank include the concentrated suspended solids, organic matter and coagulant remaining in the sludge. If the sewage is directly discharged without treatment, it will not only pollute the water body, but also waste a lot of water resources. The goal of the sewage treatment process of the water plant is to remove the solids in the sewage and the residual drugs added in the water treatment process, so that the external drainage quality of the supernatant liquid meets the national comprehensive sewage discharge standard, and the supernatant liquid is recycled to reduce the operating cost of water plant. The treated mud cake can be shipped directly. The treated substances are mainly sediment, algae, fine solids contained in the source water, and coagulants and coagulants added in the water treatment.

According to the needs of the process, in order to further reduce the moisture content of the sludge and facilitate the mud cake transportation, water plant often uses a mechanical dewatering method to maximize the seperation of the water content in the liquid sludge. It is generally required that the solid content of the sludge after dewatering in the water purification plant is ≥25%. Screw Press is often used by water plants for water treatment.

Type: Screw Press
Capacity: 0.5-1360 kgDS/h
Weight: 800 kg
Material: SS 304/316L
Warranty time: 1 year

Advantages:

The screw press has been widely used in the sewage treatment process of various industries for many years. The product has the advantages of long service life, small footprint, convenient maintenance and low operating cost. It can realize 24 h full-automatic operation. At the same time, the characteristics of low concentration treatment make the equipment reduce the need for sludge storage tank (concentration tank) to a certain extent. And it can save investment for new sewage projects.

Working Principles:

The main body of the screw press is composed of a fixed ring and a movable ring overlapping each other, and the front section is concentrated and filtered. The latter part is extruded mud. The screw shaft runs through it and drives the movable ring in the ring piece to rotate so as to achieve the purpose of gradual dehydration. To achieve the goal of reducing the water content and producing mud, the ring is rotated at the same time. The extrusion process also plays a role in cleaning the ring. The sludge concentration of the screw press dehydrator is generally 0.2%~5%, the moisture content of the mud is generally 75%~80%. The screw dewatering machine mainly relies on the extrusion of the screw to achieve sludge dewatering. The difference in the density of mud and water and the oil content will not affect the treatment efficiency of the equipment. It can realize the dewatering of low-concentration sludge. The unique dewatering principle makes the equipment be suitable for high and low concentration sludge, starting from 2000mg/L, creating a precedent for direct dewatering of low concentration sludge; the rotation speed of the screw shaft of the screw dehydrator is very low (about 2 r/min), which makes itself have the characteristics of low energy consumption, no noise, and low operating cost; the screw press adopts a fully enclosed box, and there is a reserved odor gas treatment interface on the box, which can effectively reduce the pollution influence of the odor gas (such as hydrogen sulfide) in the sludge to the surrounding work environment.

After-Sale Services

Quality guarantee: 12 months after the equipment having been operated.
Satisfied after-sell service: free maintenance and inspection.
Detailed installation instructions, CAD drawing and product qualification certificate.