Pocket filter assembly

B - Operations – Transporting – 01 – D

Patent

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Details

B01D 46/06 (2006.01) B01D 35/30 (2006.01)

Patent

CA 2609400

A pocket filter assembly comprises a frame structure having a number of filter pocket openings (3) and a corresponding number of filter pockets (2), each filter pocket having a pocket mouth sealingly secured in a corresponding filter pocket opening. The frame structure comprises an outer subframe (15,16,17) and a corresponding inner sub- frame (14) connected and locked to each other solely by means of locking elements at distributed locking positions along opening portions of the subframes defining the filter pocket openings. At each locking position, the filter pocket mouths are sealingly clamped between co-operating opening portions of the subframes. The locking elements comprise an undercut hook-shaped projection (61) on the inner subframe and a co-operating receiving hole on the outer subframe, such that an interlock of the subframes to each other is obtained, while involving filter pocket mouth material of the associated filter pocket between said projection and said aperture such that said interlock is sealed thereby.

L'invention porte sur un ensemble de filtres à manches comprenant une structure de cadre dotée d'un certain nombre d'ouvertures de filtres à manches (3) et d'un nombre correspondant de filtres à manches (2), chaque filtre à manches possédant une bouche de manche fixée hermétiquement dans l'ouverture d'un filtre à manche correspondant. La structure de cadre comprend un sous-cadre externe (15, 16, 17) et un sous-cadre interne correspondant (14) reliés et verrouillés mutuellement au moyen d'éléments de verrouillage au niveau de positions de verrouillage réparties le long de parties d'ouverture des sous-cadres définissant les ouvertures de filtres à manches. Les bouches de filtres à manches sont hermétiquement serrées, au niveau de chaque position de verrouillage, entre des parties d'ouverture coopérantes des sous-cadres. Les éléments de verrouillage comprennent un élément de saillie (61) en forme de crochet dégagé, sur le sous-cadre interne, et un orifice de réception coopérant sur le sous-cadre externe, si bien que le verrouillage mutuel des sous-cadres est effectué, tout en disposant la bouche du filtre à manches du filtre à manches associé entre l'élément de saillie et l'ouverture de manière que le verrouillage soit ainsi étanche.

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