AAAR 35th Annual Conference October 17 - October 21, 2016 Oregon Convention Center Portland, Oregon, USA
Abstract View
Filtration Area of a Pleated Filter Bag Determined by Filter Cleaning Characteristics
MYONG-HWA LEE, Jeong-Uk Kim, Hyun-Jin Choi, Jungho Hwang, KITECH
Abstract Number: 163 Working Group: Control and Mitigation Technology
Abstract Pleated filter bag has a major advantage which has higher filtration area than a cylindrical filter bag. Therefore, it can be used to increase both filter lifetime and dust holding capacity, because it is possible to decrease filtration velocity at the same exhaust gas amount. However, effective filtration area of a pleated filter bag is still uncertain, although it is an important design parameter in a pulse-jet bag house. The effective filtration area of a pleated filter bag was determined by assuming the effective filtration area(50%, 60%, 70% and 100% of theoretical filtration area) and comparing its filter cleaning characteristics with those of a cylindrical filter bag in this study. Filtration characteristics of a pleated filter bag with optimal geometry were investigated under the conditions of filtration velocity of 1.2 m/min and dust concentration of 10 g/m$^3. As a result, we found that a pleated filter bag had an effective filtration area of approximately 50-60% in contrast to theoretical filtration area due to a dead space by filter pleating.