期刊
POWDER TECHNOLOGY
卷 228, 期 -, 页码 100-107出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.powtec.2012.05.003
关键词
Off-gas purification; Pulse-jet bag filter; Operating parameters; Cake properties; Needle felt
资金
- Higher Education Commission, Islamabad, Pakistan
- Austrian Science Foundation (FWF) [7]
Resistance parameters are essential for the prediction of pressure drop in bag filters. The reported values for limestone dust differ in magnitude and also depend on operating parameters. In this work, experimental data is provided from a pilot scale pulse-jet regenerated bag filter test facility for three types of needle felts using air and limestone dust at ambient conditions. Results reveal that specific resistance of filter media is independent of velocity while the specific resistance of filter cake increases linearly with filtration velocity. Residual pressure drop is almost constant, independent of upper pressure drop limit. The cake resistance at constant velocity fits to a second degree polynomial whereas it increases linearly with the velocity. A linear relation is reported here for all the cases. The resistance of filter cake decreases at higher upper pressure drop limit. (C) 2012 Elsevier B.V. All rights reserved.
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