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Self-cleaning air filter Introduction Working principle Advantage Technical data parameter Product details Cases


Self-cleaning air filter

Self-cleaning air filter is a new type of high-efficiency air filter with automatic dust removal function. It is especially suitable for long-term and continuous air purification of air-consuming equipment under multiple conditions. Process emissions contain fine pollutants.

application Suitable for air compressor station, oxygen production station, air-conditioning air supply system, gas turbine, blast furnace blower and other industries
filter media Air particles, impurities, etc.
Email overseas@lefilter.com

Working principle

After the aerodynamic equipment inhales dust-containing air, it will cause wear and tear of the equipment, and the inhaled dust will scale on the surface of the fan blades, resulting in a decrease in the dynamic balance accuracy of the rotor in the equipment, and its working life is greatly shortened. Harmful chemical components can cause equipment to rust and corrode. Therefore, aerodynamic equipment must be equipped with high-precision air filters. ZKL series self-cleaning air filters are improved and perfected in the air intake requirements of similar air compressors at home and abroad. At present, the product performance fully meets the air intake requirements of industrial gas turbine blast furnace blast air compressors.

Filtration process: The dust-laden air is sucked by the air compressor, sucked from the first-stage coarse filter box ①, and passed through a high-efficiency filter. Filter cartridge ②, due to the combined effects of gravitational inertia, diffusion, contact retention, etc., the dust is adsorbed on the high-efficiency filter cartridge On the upper side, clean air enters the venturi ④ through the gasket garden ③, enters the clean e-room ⑤ and joins the air collecting port ⑥, and then flows from the net The air outlet pipe ⑦ is sucked by the air compressor.

Self-cleaning process: After the dust-laden air is filtered, the dust is adsorbed on the high-efficiency filter cartridge, and the PLC is set according to the set time. The process of backflushing and self-cleaning is carried out in sequence. When the resistance loss value exceeds 600 Pa, the backflushing self-cleaning process is controlled by the PLC according to the sequence of differential pressure. Cleaning process (backflushing time is 0.1-0.2 seconds). Other high-efficiency filter cartridges work as usual, and the dust is blown back down


  • Self-cleaning air filter;
    According to the user's requirements, a dust collecting box, a dust-proof net, and a water-washing and dust-removing method.


    Controlled by Smart Distributor:

    There are three ways of self-cleaning, namely
    (1) Timing
    (2) Differential pressure
    (3) Manual

  • This equipment can realize automatic cleaning of air filter elements, so that the equipment can operate.


    High degree of automation:

    The main components are imported parts, which can realize unmanned operation and save labor costs

  • Reasonable design, no-bend design, high-rise building block combination type, easy and fast installation;


    Using high-quality materials:

    low air consumption for backflushing, generally 0.1~0.3m3/min inhalation state; pressure is 0.4~0.6Mpa;

  • Under normal environmental conditions, the filter element replacement cycle can reach about 2 years;


    Long service life:

    light weight, 1/3-1/2 of the same capacity as the cloth bag;

technical parameter

LFZK225 LFZK300 LFZK380 LFZK500 LFZK625 LFZK900 LFZK1000 LFZK1250 LFZK1500 LFZK2100 LFZK2500 LFZK3000 LFZK4400
Air filter volume (m3/min inhalation state) 225 300 380 500 625 910 1000 1250 1500 2100 2500 3000 4400
structure, single layer single layer
Initial resistance loss Pa ≤150
Filtration accuracy (um/efficiency%) ≥ 1/99.96
≥ 2/99.99
≥ 3/100
Power consumption W 100 150
Power AC 220V
Backflushing gas volume m3/min 0.1 0.2
Backflushing pressure Mpa 0.4-0.6
Dimensions (m) L 1.5 1.8 2.1 2.1 2.1 2.9 3.3 4.1 4.9 5.8 6 6 9
W 1.5 1.5 1.5 1.8 2.1 2.1 2.1 2.1 2.1 2.4 3 3.3 3.3
H 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.7 2.7 2.7 2.7
Number of modules 1
weight (t) 1.6 1.9 2 2.4 2.8 3.2 3.7 4.2 4.7 6 7 8.5 12
Project\Specifications LFZK5200 LFZK6000 LFZK7200 LFZK7600 LFZK8800 LFZK12000 LFZK14200 LFZK16000 LFZK17600
Air filtration volume (m3/min inhalation state) 5200 6000 7200 7600 8800 12000 14200 16000 17600
structure double layer
Initial resistance loss Pa ≤ 150
Filtration accuracy (μm/efficiency%) ≥ 1/99.96
≥ 2/99.99
≥ 3/100
Power consumption (W) 200
Power AC 220V
Backflushing gas volume m3/min 0.3
Backflushing pressure Mpa 0.4-0.6
Dimensions m L 6.0 6.4 7.2 7.6 9 6.0 7.0 7.6 9
W 3.3 3.3 3.3 3.3 3.3 6.6 6.6 6.6 6.6
H 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5
Number of modules 2 2 2 2 2 4 4 4 4
weight t 14 15 18 20 24 28 35 40 50

Product details


  • Shaanxi Coal Chemical Plant is currently installed

    Product: Self-cleaning air filterApplication: chemical plant ventilation

  • Equipment installation site of a steel plant in Henan

    Product: Self-cleaning air filterApplication: used for air compressor inlet

  • Equipment installation site of an oxygen station in Shandong

    Product: Self-cleaning air filterApplication: For clean room air intake front


Provide customization services according to different working conditions