863 filter

863 filter

Product Model: PD863

Overview of 863 Filter

The 863 filter is also known as a pressure type fiber bundle filter or comet filter. Used as a circulating water side filter in the circulating water system. It can also be used as a bypass filter instead of shallow media filters.
863 filter is a pressure fiber filter with advanced structure and excellent performance. It adopts a new type of bundled soft packing fiber as the filter element, with a filter material diameter of tens or even several micrometers, and has the advantages of large specific surface area and low filtration resistance, solving the problem of limited filtration accuracy of granular filter material due to the particle size of the filter material. The small diameter of the filter material greatly increases the specific surface area and surface free energy of the filter material, increases the contact opportunities between impurity particles in water and the filter material, and enhances the adsorption capacity of the filter material, thereby improving the filtration efficiency and pollutant interception ability.

Working principle of 863 filter

The 863 filter consists of a fixed porous plate, fiber bundles, movable porous plate, air distribution device, etc. One end of the fiber bundle filter material is fixed on a fixed porous plate, and the other end of the filter material is equipped with a self-service adjustment device that can change the fiber density. The device is equipped with a guide component to prevent jamming.
During operation, the 863 filter receives water from the upper part and water from the lower part. At this time, under the action of water flow and gravity, the self-service fiber density adjustment device pushes the fiber filter bed downwards, compressing the fiber filter layer. Its packing density gradually increases along the direction of water flow, causing the porosity of the filter layer to gradually decrease from large to small along the direction of water flow. Correspondingly, the pore diameter and pore size of the filter layer gradually decrease, thus forming a particularly ideal variable pore deep filtration state. The filtration process includes both horizontal and vertical deep filtration, effectively improving the filtration accuracy.
When the filter layer is contaminated and needs to be cleaned and regenerated, the cleaning water passes through the fiber filter bed in the opposite direction. Under the action of backwash water flow and cleaning air, the self-service fiber density adjustment device drives the fiber filter bed to move upward, causing the fiber filter material to stretch upward and reach a loose state. Through the air-water mixing cleaning technology, the fiber filter material is constantly shaking longitudinally during the process of bubble aggregation and hydraulic flushing, which makes the fiber filter material thoroughly cleaned and achieves the ideal cleaning effect.

Characteristics of 863 filter

1. High filtration efficiency: The diameter of the filter material can reach tens of micrometers to several micrometers, with a huge specific surface area, and the removal rate of suspended solids in water can be close to 100%. Water treated with good coagulation:

(1) When the suspended solids content is 20mg/L, the suspended solids in the filtered water can reach below 2mg/L;

(2) The removal rate of suspended solids with a particle size greater than 5 μ m reaches 90-95%.

The 863 filter has a significant removal effect on impurities such as bacteria, viruses, large organic molecules, colloids, and iron.

2. Stepless variable porosity filter layer: During filtration, it automatically forms a continuously variable porosity layer state with gradually decreasing porosity along the water flow direction of the filter bed, without the need for manual grading like granular filter materials.

3. Stable performance and long service life:

(1) After modification treatment, the performance of the fiber does not deteriorate and it has strong chemical stability. The service life of the filter material can generally reach 5-10 years;

(2) The 863 filter has sufficient chemical stability, with no harmful components dissolved during water filtration. The polypropylene fiber thread has light texture, high strength, good elasticity, wear resistance, corrosion resistance, and does not absorb water.

4. Reasonable structure: The floating board has no obstruction: the unique guiding device can ensure that the floating board will not tilt or get stuck; Automatic adjustment of filter layer density: The filter layer density automatically matches the process without the need for power; When cleaning the filter material, it should be completely relaxed and high-intensity air can be used for scrubbing. The cleaning should be thorough and the filter layer should not be compacted.

5. Fast filtration speed: The 863 filter is designed with a filtration speed of 30m/h, ensuring good filtration effect within the range of 25-35m/h.

6. Large interception capacity: generally 5-15kg/m3 filter material, which is 2-3 times that of traditional filters.

7. Small footprint: To produce the same amount of water, the footprint is only one-third to one eighth of that of traditional filters.

8. Low cost per ton of water: producing the same amount of water at a lower cost than traditional filters.

9. Low self consumption water: The 863 filter only consumes 1-3% of the periodic water production, and can generally be backwashed with raw water.

Scope of application of 863 filter

863 filters are used for the production and manufacturing of tap water, drinking water, purified water, high-purity water, industrial water, swimming pool water treatment, and aquarium water
Circulation, water parks, artificial landscapes, freshwater aquaculture, industrial cooling water, air conditioning cooling water, supplementary water for cooling systems
Direct treatment of filtered water purification and miscellaneous water reuse next to the cooling system.

863 Filter Technical Parameters

1. Processing effect

①. Inlet suspended solids:<50mg/L, outlet suspended solids:<5mg/L;
②. Inlet suspended solids:<20mg/L, outlet suspended solids:<2mg/L;
③ Wastewater interception capacity: 5-15Kg/m3 (filter material).

2. Working environment parameters

①. Working temperature: 5-60 ℃ (special temperature can be customized);
②. Work pressure: ≤ 0.6MPa;
③. Inlet water pressure: ≥ 0.04MPa;
④. Backwash inlet water pressure: ≥ 0.15 MPa;
④. Import and export pressure difference: ≤ 0.05MPa.

3. Operating parameters

①. Working mode: pressure based;
②. Operation mode: Water flow from top to bottom;
③. Filtration speed: 25-35m/h;
④. Operating cycle: Depending on the turbidity of the incoming water, the minimum duration should not be less than 8 hours;
⑤. Backwash method: gas water combination;
⑥. Backwash water consumption: 1-3%;
⑦. Washing strength: 4-15l/s · m2;
⑧. Air pressure: 0.05-0.1MPa (Roots blower or oil-free air compressor can be selected);
⑨. Air intensity: 40-60 L/m2 · s;
⑩. Backwash duration: 20-50min (depending on the interception capacity).

The data in the table is for reference only