Dust dispersion during the pulse-jet cleaning process with the diffuser effect of the cartridge filter

A special conical diffuser was presented and fixed on the top of the filter cartridge to improve the flow field. The existence of the diffuser can disperse the jet flow from the nozzle, and the high-speed airflow can act on more areas of the filter cartridge, including the top area of the filter car...

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Bibliographic Details
Published in:Environmental science and pollution research international 2023-03, Vol.30 (14), p.41486-41504
Main Authors: Feng, Xinyue, Geng, Fan, Teng, Haixu, Li, Shihang, An, Jiajun, Gui, Changgeng
Format: Article
Language:English
Subjects:
Air flow
Aquatic Pollution
Atmospheric Protection/Air Quality Control/Air Pollution
Cartridges
Cleaning
Cleaning process
Diffusers
Dispersion
Dust
Dust collectors
Dust control
Dust filters
Earth and Environmental Science
Ecotoxicology
Environment
Environmental Chemistry
Environmental Health
Environmental science
Filtration
Heart Rate
Jet flow
Research Article
Waste Water Technology
Water Management
Water Pollution Control
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Summary:A special conical diffuser was presented and fixed on the top of the filter cartridge to improve the flow field. The existence of the diffuser can disperse the jet flow from the nozzle, and the high-speed airflow can act on more areas of the filter cartridge, including the top area of the filter cartridge. To improve the cleaning efficiency, the present study is aimed at optimizing the structure of the filter cartridge. The DPM model was used to simulate the dust dispersion process and the falling dust sedimentation from the filter under the action of the pulsed airflow. To validate the established model, the pressure values at the monitoring points were analyzed and compared with the related experimental results. It is found that the pressure values are consistent with the experimental results. Moreover, the installation distance and the size of the diffuser were studied and their influence on the dust distribution on the surface of the filter cartridge. It is found that the dust removal effect is relatively better when the installation distance is 90 mm and the size radius is 25 mm. The maximum dust concentration can be reduced by 15 mg/m 3 . The present research results can provide theoretical guidance for the cleaning process of the filter cartridge and finally improve the dust-removal efficiency of the dust collector. Graphical abstract
ISSN:1614-7499
0944-1344
1614-7499
DOI:10.1007/s11356-022-24865-x