Working principle of SCF-DAT self-cleaning filter:

The SCF-DAT fully automatic filter consists of multiple filtering units and cleaning units. Each fully automatic filter is equipped with 3 or 4 sets of filtering and cleaning units depending on the specifications. Each motor independently drives one cleaning unit for cleaning, and the operation of each motor does not affect the others. This ensures longer service life of the filter. The filtering and cleaning units are the main working parts of the equipment. The filtering unit is made entirely of stainless steel, with wedge-shaped filter elements that are strong and not easily damaged. The filter elements rarely need replacement during use, reducing operating and maintenance costs. The wedge-shaped filter elements have a default filtration accuracy of 200μm, but can be manufactured with filter elements ranging from 200 to 3000μm according to user requirements. The cleaning unit of the filter consists of stainless steel rotary brushes and a frame. The stainless steel rotary brushes are fixed to both sides of the frame with bolts and are easy to replace.

Product parameters and performance:

Single unit water treatment capacity range: 1600-5760t/h

Minimum working pressure: 0.1Mpa

Maximum working pressure: 1.0/1.6/2.5/4.0Mpa

Pressure loss: ≤0.01Mpa

Filter element accuracy: 100-3000um (wedge mesh) 800um-5000um (perforated mesh)

Standard pressure: 1.0Mpa, 1.6Mpa (2.5Mpa, 4.0Mpa customized for special specifications)

Shell material: CS, 304, 316

Filter mesh material: 304, 316L

Filter element type: stainless steel wedge mesh (high precision), stainless steel perforated mesh (low precision)

Temperature: 0-85℃ (85℃-200℃ customized according to actual site conditions)

Control cabinet: relay control, PLC control (including remote signals)

Control methods: manual, differential pressure, time

Rated operating voltage: three-phase, 220V, 380V, 50HZ (special 110V/440V/460V, please contact our company for customization)

SCF-DAT

Product parameters and performance:

Single unit water treatment capacity range: 1600-5760t/h

Minimum working pressure: 0.1Mpa

Maximum working pressure: 1.0/1.6/2.5/4.0Mpa

Pressure loss: ≤0.01Mpa

Filter element accuracy: 100-3000um (wedge mesh) 800um-5000um (perforated mesh)

Standard pressure: 1.0Mpa, 1.6Mpa (2.5Mpa, 4.0Mpa customized for special specifications)

Shell material: CS, 304, 316

Filter mesh material: 304, 316L

Filter element type: stainless steel wedge mesh (high precision), stainless steel perforated mesh (low precision)

Temperature: 0-85℃ (85℃-200℃ customized according to actual site conditions)

Control cabinet: relay control, PLC control (including remote signals)

Control methods: manual, differential pressure, time

Rated operating voltage: three-phase, 220V, 380V, 50HZ (special 110V/440V/460V, please contact our company for customization)

Accuracy conversion table

Equipment structure diagram 1

Figure 1

Equipment installation diagram 2

Selection guide:

1. Water treatment capacity

2. System pipeline pressure

3. Actual site filtration accuracy requirements

4. Suspended solids content in the filtration system

5. Medium and chemical properties of the filtration system

Scope of application:

1. Industrial circulating cooling water: Used in equipment with certain water quality requirements such as cooling towers, rolling mills, continuous casting machines, polishing machines, pumps, solenoid valves, ion exchangers, sprayers, heat exchangers, etc., or on water supply and drainage pipelines. It can filter impurities in the water to prevent clogging of pipelines, nozzles, and other components.

2. Central air conditioning cooling water: Prevents clogging of heat exchangers, ensures heat exchange efficiency. Used in central air conditioning systems, centralized heating systems, and hot water boiler systems to protect cooling equipment, heat exchange devices, air conditioners, boilers, etc.;

3. Suitable for industrial circulating water filtration and reuse in steel systems, petrochemical, metallurgy, electronics, food, paper making, and other industries;

4. Coarse filtration in sewage treatment plants to reduce the cost of fine filtration systems. The DT type fully automatic filter has a large single-machine processing capacity and can be used in parallel to meet user needs, making it especially suitable for large water users.

 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.