Measurement of effective filtration area of pleated bag filter for pulse-jet cleaning

被引:23
作者
Kim, Jin Sik [1 ]
Lee, Myong-Hwa [2 ]
机构
[1] Korea Inst Ind Technol, Thermochem Energy Syst R&D Grp, 89 Yangdaegiro Gil, Cheonan 31056, Chungnam, South Korea
[2] Kangwon Natl Univ, Dept Environm Engn, 1 Kangwondaehak Gil, Chuncheon Si 24341, Gangwon Do, South Korea
关键词
Dust collector; Pleated filter; Filter pleating; Filter cleaning efficiency; Effective filtration area; CARTRIDGES; PARTICLES; PRESSURE; GEOMETRY;
D O I
10.1016/j.powtec.2018.11.080
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
A pleated filter cartridge is a potential component to reduce the installation space required for a bag house dust collection system. However, the optimal pleating method has not been suggested yet, and it has been dependent upon the manufacturer's know-how and experience. In this study, dimensionless parameter, alpha, which is the ratio of pleat height to pleat width, was introduced to determine the optimal pleat geometry of a pleated filter cartridge. Eight different pleated filters were prepared to determine the effect of alpha and pleat length, P-L, on the filter cleaning efficiency. A lab-scale pulse jet bag house system which could install four filter bags and to be capable of on-line filter cleaning, was used to perform the filtration tests. Based on experimental data, a pleated cartridge filter with alpha = 2.21 had the maximum effective filtration area, and filter cleaning efficiency. However, we observed a drastic decrease in filter cleaning efficiency for a filter with an alpha value higher than 2.21. Therefore, we found that the tested cartridge filter had the optimal filter pleating geometry at alpha = 2.21, which folds a filter medium as a ratio of pleat height to pleat width, 2.21. In addition, the effective filtration area of a pleated filter cartridge was measured by the relationship between the increase in pressure drop during each filtration cycle, and multiplication of dust concentration and elapsed time. The ratio of the effective filtration area and theoretical filtration area, beta, depends on the filtration cycle and the alpha value at the initial stage; however, it only depends on the a value at a later stage. (C) 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码:662 / 670
页数:9
相关论文
共 20 条
[1]   Filter quality of pleated filter cartridges [J].
Chen, Chun-Wan ;
Huang, Sheng-Hsiu ;
Chiang, Che-Ming ;
Hsiao, Ta-Chih ;
Chen, Chih-Chieh .
ANNALS OF OCCUPATIONAL HYGIENE, 2008, 52 (03) :207-212
[2]   OPTIMIZATION OF PLEATED FILTER DESIGNS USING A FINITE-ELEMENT NUMERICAL-MODEL [J].
CHEN, DR ;
PUI, DYH ;
LIU, BYH .
AEROSOL SCIENCE AND TECHNOLOGY, 1995, 23 (04) :579-590
[3]   Effect of pleat shape on reverse pulsed-jet cleaning of filter cartridges [J].
Chen, Shaowen ;
Wang, Qiang ;
Chen, Da-Ren .
POWDER TECHNOLOGY, 2017, 305 :1-11
[4]   Filtration of dust particulates using a new filter system with louvers and sublouvers [J].
Chen, Yi-Shun ;
Hsiau, Shu-San ;
Lee, Hsuan-Yi ;
Chyou, Yau-Pin .
FUEL, 2012, 99 :118-128
[5]   Factors influencing pressure drop through a dust cake during filtration [J].
Cheng, YH ;
Tsai, CJ .
AEROSOL SCIENCE AND TECHNOLOGY, 1998, 29 (04) :315-328
[6]   Particle size effect on the filtration drag of fly ash from a coal power plant [J].
Choi, JH ;
Ha, SJ ;
Bak, YC ;
Park, YO .
KOREAN JOURNAL OF CHEMICAL ENGINEERING, 2002, 19 (06) :1085-1090
[7]  
Cooper C. D., 2002, AIR POLLUT CONTROL
[8]  
Dennis R., 1997, FILTRATION MODEL COA
[9]   Filtration performance evaluation of depth filter media cartridges as function of layer structure and pleat count [J].
Hasolli, N. ;
Park, Y. O. ;
Rhee, Y. W. .
POWDER TECHNOLOGY, 2013, 237 :24-31
[10]   Effective filtration area of a pleated filter bag in a pulse-jet bag house [J].
Kim, Jeong-Uk ;
Hwang, Jungho ;
Choi, Hyun-Jin ;
Lee, Myong-Hwa .
POWDER TECHNOLOGY, 2017, 311 :522-527