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KMID : 0895420080180030189
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Journal of Korean Society of Occupational and Enviromental Hygiene
2008 Volume.18 No. 3 p.189 ~ p.203
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Experimental study on the optimum pulse jet cleaning conditions of a rectangular bag-filter system
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Piao Cheng-Xu
Kim Tae-Hyeung
Li Xiaoyu
Ha Hyun-Chul
Jung Jae-Hun
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Abstract
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Cylindrical bag filter system with pulse jet cleaning has been the most common device to control particle laden exhaust gas from the various industrial processes. But, it has many shortcomings due to particle reattachment and frequent bag rupture. In recent years, rectangular type bag filter system has been developed to overcome the problems associated with the cylindrical system. However, not many studies about the rectangular system were not done, compared to the cylindrical system. In this study, the optimum pulse jet cleaning conditions were thus tested by the series of experiments. The factors tested in this study are pulse distance, pulse pressure, pulse duration, the number of holes for pulsing and bag materials. A single bag (1,500mmL×50mmW×300mmH) system and a multi-bags (3 bags in a row) were tested separately. The highest removal efficiency with a single bag system was found at the conditions with pulse distance of 10cm, pulse pressure of 3kg/cm2，pulse duration of 0.3s, pulse jet number of 6 and Polyester bag. With the multi-bags system, the best cleaning conditions were found at the bag interval of 20cm with the simultaneous pulsing and the bag interval of 15cm with the serial pulsing.
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KEYWORD
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Rectangular bag filter, Pulse jet cleaning, Pressure drop, Bag interval
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