Improved Pulsed-Jet Cleaning of Pleated Cone Filter Cartridges Using a Diffusion Nozzle

16 17 A pleated filter cartridge with an additional pleated filter cone installed on the cartridge base, 18 i.e., a pleated cone filter cartridge, has been proposed to increase the filtration area and to 19 improve medium regeneration by reverse pulsed-jet cleaning. In this study, the pulsed-jet 20 cleaning performance of a pleated cone filter cartridge in a dust collector was investigated using a 21 diffusion nozzle (as compared to that of a round nozzle). The effects of tank pressure ( TP ), jet 22 distance ( JD ), and inner cone height ( HC) on the distribution of static pressure acting on the inner 23 surfaces of the cone filter cartridges were evaluated. The filtration pressure drops and emitted 24 dust concentration of cartridges during the dust collector operation were also measured. It was 25 found that, using a diffusion nozzle, the pulsed-jet pressure at the upper portion of the filter 26 cartridges was increased, compared to that of a round nozzle, particularly for cartridges with a 27 low HC and a short JD setting (e.g., a factor of 7.0 was observed when HC = 560 mm and at a JD 28 setting of 150 mm). The pulsed-jet cleaning of a pleated cone filter cartridge using a diffusion