Fabric cleaning in pulse-jet filters

Numerical study of pleated fabric cartridges during pulse-jet cleaning

“…Our finding that pressure tends to vary among the different locations of a pleated filter cartridge during pulsing is similar to findings from previous studies of filter bags [2,21]. In general, the lowest static pressure on the pleated filter cartridges was found at x/L =0.8, and the highest static pressure was found at the bottom.…”

“…The filter could not be cleaned completely until a critical tank pressure was used. Similar results were found by Sievert and Loffler [21]. Both studies showed similar characteristics of the effect of peak static pressure on the various locations in the filter bag.…”

“…When measuring the cleaning efficiency of pulse-jet-cleaned filters, the static pressure on the filter surface is more meaningful than overpressure data [21], particularly for the case of pleated filters. The variation in the cleaning effectiveness of our test filter cartridges according to the average static pressure on the individual surfaces (P ̅ s ) of the filters is shown in Fig.…”

The relationship between peak pressure and residual dust of a pulse-jet cartridge filter

“…Therefore, in order to improve the dust-cleaning effect of pulse-jet cartridge filters, numerous studies have been reported on the structure design and the evaluation indicators. Reports [1,[7][8][9][10][11][12][13][14][15] show that the main performance parameters which impact the pulsejet cleaning of the cartridge filters are: tank pressure, nozzle diameter, venture tube, pulse duration, and jet distance (the distance between nozzle and cartridge opening). There are another four indexes can be used to evaluate the dust-cleaning intensity of the pulse-jet cartridge filter: peak pressure [1,5,7,11,16], initial pressure rise rate [5,6], reverse acceleration of fabric [3,15] and average pulse overpressure [1,4].…”

Experimental investigation of backpulse and backblow cleaning of nanofiber filter loaded with nano-aerosols

“…Filters made from nanofibers (100-300 nm) can effectively capture nano-aerosols (or referred as nano-particles with diameters <100 nm), while conventional filters made from microfibers (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20) lm) are less effective to capture nano-aerosols despite they can be reused after cleaning, especially for industrial applications.…”