Self-Cleaning Air Filter

Self-cleaning air filters are a new type of filter with automatic dust removal capabilities, enabling continuous air purification over extended periods. They remove dust and other impurities from the gas stream, ensuring that clean air enters the equipment.

Working principle:

The clean air chamber outlet is connected to the air compressor inlet. Under negative pressure, small dust particles are adsorbed onto the filter cartridge surface through Brownian motion, diffusion, and electrostatic effects, while larger dust particles are intercepted on the filter cartridge surface via inertial collision and sieving, forming a dust cake. When the resistance reaches the set value, the pressure differential signal is transmitted to the PLC via the pressure sampling port. The pulse valve is energised and opens, and high-pressure airflow is blown back through the blowpipe to remove dust from the filter cartridge surface, restoring the equipment to normal operation.

Product Features:

Automatic reverse-blow cleaning: Filter cartridge cleaning can be controlled by differential pressure or time. The PLC performs reverse-blowing in a pre-set sequence (reverse-blowing time: 0.1–0.2 seconds), ensuring continuous operation of the air compressor for two years without interruption;​

Pre-filter: Blocks large contaminants such as cottonwood fluff and leaves from entering, extending the lifespan of the filter cartridge;​

Filter media made of wood pulp fibre or polyester material, featuring low resistance, high precision, waterproof, oil-resistant, and anti-static properties;​

Electrical control module with simple installation; simply connect the power supply and air supply to use;​

Initial resistance below 150 Pa;​

Supports customised non-standard specifications. ​

Application Areas:​

Chemical, steel, metallurgy, automotive, food, electronics, and other industries.