1. Operating principle

After the dust-laden gas is guided by the fan into the dust collector, due to the sudden expansion of the airflow end face and the effect of the airflow distribution plate, a portion of the coarse dust particles in the airflow settle into the ash hopper under the action of gravity and inertia. The fine dust particles with small size and low density enter the filter chamber, and through the combined effects of Brownian diffusion and fiber interception, the dust is deposited on the surface of the filter material in the filter cylinder. The purified gas enters the clean gas chamber and is discharged through the air outlet by the fan. The resistance of the filter cylinder dust collector increases as the ash deposition on the surface area of the filter cylinder increases. When the resistance reaches a certain set value, a high-speed and high-pressure airflow is ejected through the small holes of the ejection pipe via the pulse valve of the back-blowing system to clean the dust. At this time, the PLC program controls the opening and closing of the pulse valve. When the pulse valve is opened, the compressed air in the air bag expands through the Venturi tube and evenly enters the interior of the filter cylinder, forming an instantaneous positive pressure inside the filter cylinder and generating a huge vibration, causing the dust deposited on the filter material to fall off and into the ash hopper. The collected dust is discharged into the ash bucket through the ash discharge valve. The uppermost row of filter cylinders will be back-blown first, and then the control instrument selects the next row for the back-blowing process. After that, the control instrument will continue to select other filter cylinders for back-blowing operations in sequence.

2. Performance characteristics

1) The advanced downflow layout and inclined filter cartridge structure are adopted, resulting in good synchronous ash removal effect during the operation of the dust collector
2) A dust baffle is installed at the dust and gas inlet, which serves as a buffer and wear-resistant component, preventing dust from directly impacting the filter cylinder at high speed, thereby extending the service life of the filter cylinder
3) The vertical installation of the filter cartridge facilitates easier disassembly and replacement. Additionally, the absence of transmission components within the dust collector body minimizes maintenance efforts. For general dust, the filter cartridge can be used for extended periods without replacement, eliminating the tedious task of frequently changing and washing filter bags required for commonly used bag filters, and saving significant maintenance costs
4) Modular combination, allowing for flexible size options
5) The original combination can be expanded by adding dust removal units without requiring too many modifications to the existing equipment
6) Low pressure drop, reasonable air inlet design, and reduced airflow resistance. Under normal conditions, the pressure drop between the flanges at the inlet and outlet of flue gas is only about 300Pa, and the optimal filtration wind speed is 0.5~0.8m/min.

3. Scope of application:

It is suitable for dust removal projects in various industries involving dry dust, especially those with low inlet dust concentration.
Suitable for compressor inlet filtration, it can be freely combined, easy to install, and space-saving. With its unique sealed structure, it prevents the entry of a large amount of moisture and coarse particles. When the filter cartridge is replaced with a high-efficiency coated filter cartridge, and equipped with a suitable fan and suction device, it can be used as a central smoke and dust purifier.

4. Application industries:

Industries such as shipbuilding, tobacco, mechanical casting, pharmaceuticals, steel, petrochemicals, and chemical engineering.
Note: Customized specifications can be provided according to customer requirements.