ArticleScientific reports2025
Numerical analysis on the airflow organization of a blowing suction dust collector.
Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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3 authors.
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Abstract
Small sweeper will become a very popular way to clean roads in cities if its dust removal efficiency could be improved by combining the dust collector of blowing-suction type. A new dust collector of blowing-suction type used in urban cleaning vehicle is presented by this article, which is named W-shaped blowing suction dust collector, and its gas-solid two-phase flow field is numerically analyzed by computational fluid dynamics (CFD) method, including effects of its structural parameters and operating parameters on the dust removal efficiency. It has been demonstrated that the flow field characteristics and the overall dust removal efficiency of the blowing-suction dust collector depend on the diameter-width ratio and the inclination angle of the baffle/slot-shaped nozzle, and the air blowing velocity and the sweeper traveling speed. The optimal combination of structural parameters is the diameter-width ratio of 0.25 and the inclination angle of the baffle/slot-shaped air blow of 69.5°, and the ideal operating parameters are an air blowing velocity of 15 m/s at each port and a sweeper-traveling speed of 1.3 m/s. In the conditions mentioned above, the average near ground velocity of the dust collector is greater than the particle start-up speed of 15m/s and the average velocity of the surrounding air inlet surfaces increases significantly. The negative pressure of the dust collection port is relatively high. Meanwhile, the blowing suction dust collector in this study achieved a dust removal efficiency of over 95%. This study will provide a useful reference for its fabrication followed.
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