Experimental study of pleated fabric cartridges in a pulse-jet cleaned dust collector

Lo, Li Ming; Chen, Da Ren; Pui, David Y.H.

doi:10.1016/j.powtec.2009.09.007

Cited by 92 publications

(59 citation statements)

References 17 publications

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“…This method can achieve filter cleaning and regeneration at the same time by continuously treating the flue gas in the bag house. However, the cleaning efficiency highly depends on the filter geometry (Lo et al, 2010). Recently, interest in a pleated filter has been getting higher in terms of the aspects of increasing the treating capacity of exhaust gas and decreasing the installation space of the bag house (Chen et al, 1995;Wang, 2009).…”

Section: Introductionmentioning

confidence: 99%

Influence of pleat geometry on filter cleaning in PTFE/glass composite filter

Park

Lee

et al. 2012

Journal of the Air & Waste Management Association

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A pleated filter bag is often used to treat exhaust gas in many industrial applications, due to its fairly high dust collection efficiency and relatively low pressure drop. This work deals with the optimum pleating geometries of a pleated filter made with a newly developed PTFE/glass composite filter. It was found that pleating geometries, including pleat height and pleat pitch, directly affect the cleaning efficiency. The design index, a, which stands for the ratio of pleat height to pleat pitch, is 1.48 for optimum operation. When the a value was higher than 1.48, the pressure drop across the pleated filter medium increased, resulting in a decreased cleaning interval due to the difficulty of filter cleaning. Therefore, it is necessary that the optimum pleating geometry should be determined by employing the dimensionless parameter, a, in the design of cartridge filters.Implications: A pleated filter bag is often used to treat exhaust gas in many industrial applications due to its fairly high dust collection efficiency and relatively low pressure drop. The present paper introduces an optimum design configuration to make a pleated filter with newly developed PTFE/glass composite filter media. A dimensionless parameter that is the ratio of pleat height to pleat pitch should be considered to make the best quality pleated filter.

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Section: Introductionmentioning

confidence: 99%

Influence of pleat geometry on filter cleaning in PTFE/glass composite filter

Park

Lee

et al. 2012

Journal of the Air & Waste Management Association

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“…The thickness of filter media is assumed 0.8 mm and the total pleat count is 40. The choices of 0.8 mm medium thickness and 40 pleat counts are based on the literatures (Lo, 2006;Lo et al, 2010a). The other schemes with different filter mediums and pleat counts have not been studied in the research so far.…”

Section: Numerical Modelmentioning

confidence: 99%

“…The research of reverse pulsing jet cleaning has been focused on the improvement of cleaning efficiency and quality for pleated filter cartridges by varying operational and pleating parameters (Calle et al, 2002;Lo et al, 2010a;Lo et al, 2010b;Bemer et al, 2013;Yan et al, 2013;Qian et al, 2014;Li et al, 2015a;Li et al, 2015b;Yan et al, 2015). The performance of pleated filter cartridges (with different pleat geometries and filter medium properties) under various cleaning conditions (i.e., cleaning mode and tank intensity) was investigated in a full-sized dust collector periodically cleaned by a reverse pulsing jet (Lo et al, 2010a).…”

Section: Introductionmentioning

confidence: 99%

Cleaning of Filter Cartridges with Convergent Trapezoidal Pleat Shape via Reverse Multi-Pulsing Jet Flow

Chen

2017

Aerosol Air Qual. Res.

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Pleat structure and tight pleat spacing of pleated filter cartridges often lead to patchy cleaning when applying reverse pulsing technique process to regenerate filter media, consequently resulted in the decrease of the efficiency and quality of reverse pulsed-jet cleaning as well as the service lifetime of filtration units. For improving the non-uniform cleaning or patchy cleaning, a novel convergent trapezoidal pleat shape was used in multi-pulsing reverse flow cleaning. A transient 3D CFD simulation in a simple filtration system with a single filter cartridge was carried out under the four multi-pulsing modes. The effects of multi-pulsing flow cleaning on the cleaning efficiency and quality were systematically investigated. Compared with single-pulsing cleaning mode, the peak pressure differences at the upper regions all became positive because of the increased cleaning frequency, and thus which would be crucially important for improving the local cleaning mechanical stresses and cleaning efficiency. Moreover, the extra peak-pressure augment in the lower regions of filter cartridge also had a positive influence of local cleaning efficiency. For the multi-pulsing scheme of Waveform #4, the peak pressure difference at the section 4 increased by 11.2% than the single-pulsing scheme. The related action mechanism had high correlation with the interaction of residue gas and following jet. Finally, the improvement of the cleaning efficiency and quality are expected to be validated under the decreasing tank pressure and real permeability.

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“…Pui and colleagues have also performed laboratory and field measurements of industrial dust collectors (Liu et al, 1986c;Bergin et al, 1989;Fay et al, 1989), and have extended the work to include bioaerosol filtration (Kuehn et al, 1994;Kemp et al, 1995aKemp et al, , 1995b. Several papers from the doctoral dissertation of Liming Lo (Lo et al, 2008(Lo et al, , 2010a(Lo et al, , 2010b provide the basic criteria for the design of reversed-pulsed dust collector for cleaning dust-loaded filters.…”

Section: Aerosol Filtration and Dust Collectorsmentioning

confidence: 99%

Aerosol Science and Technology: History and Reviews

Ensor¹

2011

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Aerosol Science and Technology: History and Reviews captures an exciting slice of history in the evolution of aerosol science. It presents in-depth biographies of four leading international aerosol researchers and highlights pivotal research institutions in New York, Minnesota, and Austria. One collection of chapters reflects on the legacy of the Pasadena smog experiment, while another presents a fascinating overview of military applications and nuclear aerosols. Finally, prominent researchers offer detailed reviews of aerosol measurement, processes, experiments, and technology that changed the face of aerosol science. This volume is the third in a series and is supported by the American Association for Aerosol Research (AAAR) History Working Group, whose goal is to produce archival books from its symposiums on the history of aerosol science to ensure a lasting record. It is based on papers presented at the Third Aerosol History Symposium on September 8 and 9, 2006, in St. Paul, Minnesota, USA.

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Experimental study of pleated fabric cartridges in a pulse-jet cleaned dust collector

Cited by 92 publications

References 17 publications

Influence of pleat geometry on filter cleaning in PTFE/glass composite filter

Influence of pleat geometry on filter cleaning in PTFE/glass composite filter

Cleaning of Filter Cartridges with Convergent Trapezoidal Pleat Shape via Reverse Multi-Pulsing Jet Flow

Aerosol Science and Technology: History and Reviews

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