High-efficiency fiber bundle filter

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Device Overview: The capsule-free high-efficiency fiber filter is a pressure-type fiber filter with an advanced structure and excellent performance. It uses a new type of bundled soft filler – fibers – as the filtering element; the diameter of these fibers can range from several dozen micrometers to just a few micrometers. They offer advantages such as a large specific surface area and low filtering resistance, thereby overcoming the issue of the filtering precision being limited by the particle size of granular filtering materials. The small diameter of the filter media greatly increases its specific surface area and surface free energy, enhancing the chances of contact between impurity particles in water and the filter media as well as its adsorption capacity, thereby improving filtration efficiency and dirt retention capacity. 　　To fully utilize the advantages of the bundled fiber filter media, a movable orifice plate adjustment device that can change the fiber density is installed at the lower end of the filter bed. When the device is in operation, water passes through the filter layer from bottom to top. At this time, the movable orifice plate adjustment device moves upward. When the fibers are compressed, the density of the filter layer increases along the direction of water flow; accordingly, the pore diameter and pores of the filter layer decrease, thereby enabling deep filtration. When the filter layer becomes contaminated and needs to be cleaned and regenerated, cleaning water passes through the filter layer from top to bottom. At this point, the movable orifice plate adjustment device descends automatically, stretching the fibers and putting them in a relaxed state, thereby facilitating cleaning. 　　The capsule-free high-efficiency fiber filter can effectively remove suspended solids from water, and it also has a significant effect on removing organic substances, colloids, iron, manganese, and other components present in water. It features fast filtration speed, high precision, large dirt holding capacity, easy operation, reliable performance, and no need for special maintenance. It can be widely used for the filtration treatment of various industrial and domestic water supplies as well as their wastewater, in sectors such as electricity, petroleum, chemicals, metallurgy, papermaking, textiles, food, beverages, tap water, and swimming pools. Key features · The removal rate of suspended solids in water can approach 100%. For naturally occurring water that has been properly coagulated, when its turbidity is 20 FTU, the turbidity of the water after filtration can be less than 2 NTU. 　·It is generally 30 m/h, which is 3 to 5 times that of traditional filters. 　·It is generally 5–10 kg/m3 (for filter media), which is 2–4 times that of traditional filters. 　·To produce the same amount of water, it occupies only 1/3 to 1/2 of the space required by traditional filters. 　·The cost per ton of water is lower than that of traditional filters. 　·It is only 1–3% of the periodic water production volume; under normal circumstances, the raw water can be used for backwashing. 　·The filter elements can be regenerated and reused, with a continuous service life of no less than 10 years. Performance Specifications: Table of Key Performance Parameters and Specifications for Cyst-Free High-Efficiency Fiber Filters
Specification Parameters: 100, 120, 150, 200, 220, 250, 300
Bed Thickness (mm): 1600 (in free state)
Filtering Speed (m/h): 20–30
Equipment Capacity (m³/h): 243, 453, 941, 141, 472, 10
Net Equipment Weight (kg): 142, 221, 613, 268, 039, 924, 598, 690, 282, 68
Maximum Operating Pressure: 0.60 MPa
Pollutant Holding Capacity: 5–10 kg/m³ (for filter media)
Filter Head Loss: The pressure difference between the inlet and outlet when filtration fails is generally 0.10–0.25 MPa
Suspended Solids in Water Before Filtration (Turbidity): ≤20 mg/L (≤20 FTU); ≤50 mg/L (≤50 FTU)
Suspended Solids in Water After Filtration (Turbidity): ≤1.0 mg/L (≤1.0 FTU); ≤5.0 mg/L (≤5.0 FTU)
Cleaning Operation Pressure: 0.05–0.10 MPa
Backwashing Intensity: 8–10 L/m²·s
Cleaning Air Pressure: 0.05 MPa ； The maximum value shall not exceed 0.10 MPa. The cleaning air intensity is approximately 60 to 80 L/m2·s, and the cleaning time is 20 to 30 minutes. For cleaning high-efficiency fiber filters, a Roots blower is used as the air source; the following is the specification and performance table: Product code: 200220250300. Air source pressure (MPa): 0.05. Inlet flow rate (m3/min): 15.9, 15.9, 19.8, 29.6. Roots blower models: L42L, DL42L, DL42L, L52L. Motor models: Y180L-4, Y180L-4, Y200L-4, Y225S-4. Power (kW): 22, 22, 30, 37. Unit weight (kg): 850, 850, 1000, 1600. Installation: The equipment should be placed on a horizontal surface and fixed using anchor bolts or welded to anchor plates embedded in the foundation. After the equipment is installed, its horizontal deviation must not exceed 5 mm. 　　After the equipment is installed and adjusted, the valves at each pipe outlet and the external connection pipelines can be installed. Before installing the valves and piping, the inner surface of the piping and the flange connection surfaces must be cleaned thoroughly to prevent dirt such as rust and oil from contaminating the filter layer. 　　An open-channel drainage ditch can be installed in the equipment workshop, with the upper opening of the ditch covered with a lid. The air inlet manifold of the equipment must be above the highest point of the filter to prevent water from flowing back into the Roots blower in case of errors during cleaning operations; if this requirement cannot be met, a check valve should be installed on the air pipeline. Equipment maintenance and precautions: (1) Performance of fiber filter media and replacement cycle The filter media used in high-efficiency fiber filters are made of polymer chemical fibers; they remove suspended particles from water through physical adsorption on their surface. After absorbing sediment, they can be regenerated using physical methods such as washing with water and air. This material has a heat resistance temperature of 106–127°C, and it exhibits strong corrosion resistance to various alkalis and non-oxidizing acids; its continuous service life is at least 10 years. (2) Precautions a. Possible reasons for poor water quality: (1) Failure of the filter bed (2) Inadequate cleaning (3) Air in the incoming water (4) Improper dosage of coagulant (5) Excessive fluctuations in filtration flow rate (6) The valve controlling the inlet water for cleaning is not closed properly (7) Inaccurate sampling and testing b. Situations requiring special cleaning: If, during use, it is found that there is a large amount of microorganisms growing on the fibers or that they have absorbed a significant amount of oil, special cleaning is necessary. The filter media can be soaked in a 2% NaOH solution for 24 hours before being cleaned. Inlet and outlet water quality: Inlet water quality: Suspended solids ≤ 20 mg/L, turbidity ≤ 20 F.T.U. Outlet water quality: Suspended solids ≤ 1.0 mg/L, turbidity ≤ 1.0 F.T.U. Note: The water before filtration is the clear water obtained after coagulation, clarification, and filtration.