Abstract
To address the problem of the insufficient regeneration of dust filter cartridges, a Venturi nozzle is introduced to improve the cleaning performance. The jet distance, cone height, and compressed air pressure effects on the pulsed-jet pressure distribution were experimentally investigated. Changes in the filtration pressure drop, fallen dust mass, and dust emission were also studied. As the jet distance increased, the pulsed-jet pressure and the total pulsed-jet intensity first increased and then decreased for both cases of common and Venturi nozzles, but the pulsed-jet uniformity increased. In the Venturi nozzle case, the pulsed-jet pressure in the lower section of the cartridge was effectively increased due to the larger induced airflow. As the cone height increased, the pulsed-jet pressure in the lower section of the cartridge decreased and that in the upper section increased for both nozzle cases. The dust filtration-cleaning experiment showed that the Venturi nozzle improved the operation performance of the dust collector.
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