Abstract
In pulse-jet filters, bag cleaning is accomplished by a compressed air pulse being injected into the clean side of a filter bag. This causes an abrupt increase in pressure within it, leading to a flow reversal as well as to acceleration of the filter cloth. Investigations with a 2.5 m long filter bag have shown that it is not the forces arising from the fabric acceleration, but those arising from the reverse air flow which play the major role in bag cleaning, and that the dust-cake release is related to the peak pressure built up inside the bag. In order to achieve complete dust dislodgement, a critical overpressure is necessary at every location along the length of a bag for a certain period of time. This overpressure depends on the dust-cake-fabric interaction. Experiments with flat-geometry fabric samples have shown that the critical overpressure can be found from a laboratory-scale experiment.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Chemical Engineering and Processing: Process Intensification
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
