The filtration principle of the air filter cartridge is mainly based on its special structure and filter materials, the following is a specific explanation:
1. Structural foundation
The air filter cartridge is generally composed of a metal frame and a filter material. The metal frame provides a solid support for the cartridge, ensuring that it will not be deformed or damaged during the filtration process. The filter material is a key part of the filtration function, and is usually made of highly efficient filter materials, such as glass fiber, polyester fiber or activated carbon fiber.
Second, filtration principle
Surface filtration:
The air filter cartridge mainly uses the tiny breathable tissue formed on the surface of the filter material to block the granular matter in the gas. When the dusty gas passes through the filter cartridge, the dust particles with larger particles are directly blocked on the surface of the filter cartridge, forming a dust layer. This layer of dust has a certain filtering effect, which can further enhance the filtering effect of the filter cartridge.
Deep filtration:
In addition to surface filtration, some fine dust particles will also be adsorbed in the deep structure of the filter material. This mainly depends on the microporous structure and adsorption properties of the filter material. Through deep filtration, the cartridge can further improve the filtration efficiency and ensure the cleanliness of the discharged air.
Inertial separation:
When the dust-containing gas enters the filter, the dust and particulate matter will also be separated from the air stream due to the action of inertial forces. This inertial separation helps to reduce the amount of dust entering the filter material, thereby extending the service life of the filter cartridge.
Third, flight clearance mechanism
In order to ensure the continuous filtering effect of the filter cartridge, regular cleaning operations are required. The common cleaning methods include pulse back blowing and mechanical vibration cleaning.
Pulse blowback:
Using the preset parameters of the controller to give a signal to the solenoid valve, instantly open and close the solenoid valve diaphragm, so that high pressure gas into the spray pipe. The rapid expansion force of gas is used to shake off the dust on the surface of the filter cylinder to achieve the purpose of dust removal. Pulsed back blowing has high efficiency and does not destroy the dust layer on the surface of the filter cartridge.
Mechanical vibration cleaning:
It is often used for small single filter cartridge dust collector. The shaking force generated by the eccentric device on the flower plate of the dust collector is used to clean the ash. This cleaning method needs to be operated after shutdown, which is less efficient than pulse blowback.
In summary, the filtration principle of the air filter cartridge is based on its special structure and filter materials, through the joint action of surface filtration, deep filtration and inertial separation and other mechanisms to achieve effective filtration of dust particles in the air. At the same time, the continuous filtration effect and service life of the filter cartridge are ensured through regular cleaning operations.
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