Dust collector with re-entrainment prevention walls

Details Dust collector with re-entrainment prevention walls Dust collector with re-entrainment prevention walls

B - Operations, Transporting

01

D

B01D 50/00 (2006.01) B01D 46/04 (2006.01) B01D 46/24 (2006.01) B01D 46/52 (2006.01)

Patent

CA 2066970

A dust collector for removing particles entrained and transported in a flow of transport air which comprises a housing having a generally cylindrical chamber with a tangential inlet for introducing the transport air and causing it to assume a helical flow path within the chamber. A plurality of vertically extending cylindrical filter elements are disposed within the chamber, and conventional reverse pulse-jets are provided for periodically cleaning the filter elements by creating a reverse flow of air outwardly therethrough. A wall arrangements is provided adjacent each filter element to create a flow channel that directs the outward flow of cleaning air and particles removed from the filter elements thereby in a direction toward the main helical flow path of the transport air to substantially reduce re-entrainment of the removed particles.

Collecteur de poussières destiné à enlever les particules entraînées et transportées dans un écoulement d'air de transport, comprenant un boîtier doté d'une chambre généralement cylindrique à entrée tangentielle de façon à introduire l'air de transport et lui permettant de provoquer un écoulement d'air hélicoïdal à l'intérieur de la chambre. Plusieurs éléments filtrants cylindriques verticaux sont placés à l'intérieur de la chambre et des jets pulsés à contre-courant permettent de nettoyer périodiquement les éléments filtrants. Un dispositif fixé à la paroi de la chambre et adjacent à chaque élément filtrant crée un canal d'écoulement qui dirige l'écoulement de l'air de nettoyage et des particules enlevées des éléments filtrants vers l'écoulement d'air hélicoïdal principal de l'air de transport de façon à réduire substantiellement le réentraînement des particules enlevées.

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