How the filter cartridge works?

1. After the dusty gas enters the ash hopper of the dust collector, a part of the coarse particles in the airflow settles under the action of the dynamic and inertial forces. After the dust particles with fine particle size and low density enter the dust filter chamber, the dust is deposited on the surface of the filter material, and the purified gas enters the clean air chamber and is discharged by the exhaust pipe through the fan.

2. The resistance of the cartridge type dust collector increases as the thickness of the dust layer on the surface of the filter material increases. When the resistance reaches a certain value, it should be cleaned. At this time, the PLC program controls the opening and closing of the pulse valve. First, a compartment chamber poppet valve is closed, the filtered airflow is cut off, and then the electromagnetic pulse valve is opened, and the compressed air and the short time are rapidly expanded in the upper tank body, and are poured into the filter cartridge, so that the filter cartridge expands and deforms to generate vibration, and is flushed in the reverse airflow. After the cleaning is completed, the electromagnetic pulse valve is closed, the poppet valve is opened, and the chamber is restored to the filtered state. The cleaning chambers are sequentially performed, starting from the first chamber cleaning to the next cleaning, starting with a cleaning cycle. The falling dust falls into the hopper and is discharged through the ash valve.

3. During this process, the filter cartridge must be periodically replaced and cleaned to ensure filtration and accuracy, as some of the dust will deposit on the filter surface in addition to being blocked during the filtration process, which increases resistance. So the general replacement time is three to five months.

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