SCF Type High-Efficiency Fiber Ball Filter

1. Overview

The SCF type high-efficiency fiber ball filter is a steel circular tank that uses pressure filtration with fiber balls as the filter media. The filter features high filtration speed, large processing capacity, good treatment effect, and small footprint.

2. Working Principle

The fiber ball filter media, made by knotting fiber filaments, differs from traditional rigid granular media as it is elastic. It has a high porosity, and during filtration, the porosity of the filter layer gradually decreases along the water flow direction from top to bottom, matching the ideal filter media pore distribution of larger pores on top and smaller pores below. Compared to traditional media, fiber ball media offers advantages such as high filtration speed (30~35m/h), large mud retention capacity, long working cycle, good filtration effect, and is renewable. It uses air-water mixed backwash, with backwash water volume only 1~2% of the filtration water volume, suitable for filtering various water qualities.

3. Design Parameters

1. Design filtration speed: 30-35m/h;

2. Water washing intensity: 10-12L/m ² ·s;

3. Air washing intensity: 60L/m ² ·s;

4. Operating temperature: 0-50℃;

5. Design pressure: 0.6Mpa;

4. Product Features

1. High filtration precision: The removal rate of suspended solids in water reaches 100%. For natural water with good coagulation treatment and turbidity of 20 NTU, the filtered water turbidity can be controlled below 2 NTU.

2. Fast filtration speed: Generally 30~35m/h, which is 3~5 times that of traditional filters, with a maximum up to 50m/h.

3. Large dirt holding capacity: Generally 6~10kg/m ³ , which is 2~4 times that of traditional filters.

4. Strong adjustability: Parameters such as filtration precision, dirt holding capacity, and filtration resistance can be adjusted as needed.

5. Small footprint: For the same water volume, the footprint is only 1/3 to 1/2 that of traditional filters.

6. Low cost per ton of water: The cost per ton of water is lower than traditional filters.

7. Low backwash water consumption: Only 1~2% of the cycle water volume, and raw water can generally be used for upward washing.

8. Long service life: The equipment does not require filter element replacement. When the filter element is contaminated, it can be easily cleaned to restore filtration performance. The filter element lifespan is generally 5~10 years.

5. Application Scope

The high-efficiency fiber ball filter can effectively remove suspended solids in water and has significant removal effects on organics, colloids, iron, manganese, etc. It is widely used in industries such as power, petroleum, chemical, metallurgy, papermaking, textile, food, beverage, automotive, boiler, and aquaculture.

1. Deep filtration for circulating water treatment

1.1 Circulating cooling water treatment in industries such as power, petrochemical, chemical, fertilizer, and central air conditioning.

1.2 Circulating reuse water treatment for swimming pools, car washing, and showers.

1.3 Circulating water treatment and source water pretreatment in aquaculture.

2. Deep filtration for water supply treatment

2.1 Deep filtration in the tap water industry, replacing sand filtration.

2.2 Source water pretreatment for industries such as purified water, beverages, drinks, and alcohol.

2.3 Pretreatment for boiler water.

3. Industrial and domestic sewage treatment

Used as pretreatment for adsorption, ion exchange, membrane separation, etc., and as advanced treatment after biochemical processing to meet water reuse requirements.

6. Equipment Selection Table

 Dirty water enters from the filter inlet, first passing through the coarse filter screen to remove larger particles, then reaching the fine filter screen. During filtration, the fine filter screen gradually accumulates dirt and impurities from the water, forming a filter impurity layer. Because the impurity layer accumulates on the inside of the fine filter screen, a pressure difference forms on the inside and outside of the fine filter screen. When the pressure difference of the self-cleaning filter reaches the preset value, a switch signal is sent to the control box PLC system to start a cleaning cycle. Cleaning process: The cleaning mechanism of the fully automatic negative pressure suction filter is a stainless steel spiral up-and-down moving suction scanner. It is hollow in structure, with several suction nozzles vertically distributed at certain distances along its axis. The inside of the suction scanner communicates with the 3” drain valve. When the drain valve opens, the pressure difference between the internal water pressure of the filter and the external atmospheric pressure generates strong suction at each suction nozzle. At each suction nozzle, water flows rapidly from outside to inside in reverse, washing impurities attached to the inner wall of the filter screen into the suction nozzle, through the hollow shaft of the suction scanner, then discharged through the drain valve, completing the cleaning process which takes about 30-60 seconds. At this time, the pressure difference returns to normal, the cleaning process ends, and filtration resumes. During cleaning, the system continues to flow.