10th International Aerosol Conference September 2 - September 7, 2018 America's Center Convention Complex St. Louis, Missouri, USA
Abstract View
Regeneration Characteristics of Filter Bag Cartridges with Various Pleating Geometries
JIN SIK KIM, Myong-Hwa Lee, Korea Institute of Industrial Technology
Abstract Number: 632 Working Group: Control and Mitigation
Abstract Pleated filter cartridge is a good alternative to treat a large amount of dust-laden gas in a limited space for a dust collector, because it has larger filtration area than a cylindrical filter bag. In general, the filter cleaning efficiency of a pleated filter bag is less than that of a cylindrical one and highly dependent upon pleat geometries, despite of its advantage. So far, the optimal pleating method of the filter media was not suggested yet. Dimensionless parameter, α, which is the ratio of pleat height to pleat width, is introduced to investigate the regeneration characteristics of a pleated filter cartridge in this study.
Six pleated filter bags with different pleat geometries (α=1.07, 1.36, 1.65, 1.93, 2.21, 2.50) and a cylindrical filter bag were prepared and tested in a lab-scale pulse-jet bag house system. The filter functioning antistatic water repellency was used as a filter medium and fly ash particles were introduced as the test particles. In addition, the filtration velocity was set to 1 m/min which is the usual filtration velocity in a real plant and the air flowrate maintained uniformly to have a constant filtration velocity by using a pitot tube and an inverter. Filter regeneration was conducted at the maximum allowable pressure drop of 100 mmH2O under the clean-on-demand mode. The results showed that there was an optimum pleat geometry based on the filter cleaning characteristics of pleated filter cartridges, which had a maximum filtration area and reasonable filter cleaning efficiency.
Acknowledgment This work was financially supported by the KITECH R&D program (Project number : JB180002).