Effect of Surface Finishing on Filtration Performance of a Regenerable Filter Media
2014
The periodical filter cleaning process has a marked effect on the filtration performances of fabric filters. A model was proposed to express the non-uniformity of residual dust cake distribution after filter cleaning in a simpler manner, in which two parameters, i.e. the surface cleaning fraction, f , and the residual dust load on un-cleaned surface, RD , were introduced. Three filter media with different surface finishing were tested and f and RD were calculated by using the testing results. It can then be concluded that filter with surface finishing of calendar + singe has a better filter regeneration effect than that of singe + calendar. Lamination with PTFE membrane results in an excellent filter regeneration effect.
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