Bag holder for self-cleaning bag filter

Claim 1

In a bag filter device having a housing with a partition therein forming a filter chamber and a separate plenum chamber, said partition having a plurality of openings with an elongated filter bag mounted at each opening, each of said filter bags extending through one of said partition openings into said filter chamber, said filter chamber receiving air for filtration from an inlet and communicating said air through said filter bags and partition openings to said plenum chamber for discharge through an outlet, said filter bags entrapping solids suspended in said air, each filter bag having a closed end and an open end with a cuff at said open end, the improvement in bag mounting structure comprising: (a) a stationary shoulder on the plenum chamber side of said partition in surrounding relation to each of the openings therein; (b) each shoulder having associated therewith a clamping ring engaging one of said filter bag cuffs and sealing same against said shoulder; (c) each clamping ring having a hanger member secured thereto and extending thereacross, said hanger member being adapted as a handle; (d) an elongated bag supporting frame within each of said filter bags and having a transverse dimension less than the transverse dimension of said partition openings; (e) a disengageable connector projecting upwardly from each of said supporting frames and engaging a respective hanger member thereby suspending said frame and a filter bag thereon from said hanger member and permitting said frame and bag to be selectively withdrawn downwardly by disengagement from said hanger member or withdrawn upwardly through the associated partition opening; (f) each hanger member having extensions thereof projecting outwardly past the perimeter of the associated clamping ring, each extension having a seating device thereon; and (g) seating members on the plenum chamber side of said partition, each seating member being located for co-operation with a respective hanger member extension seating device and positively aligning a clamping ring for seating with a respective shoulder and clamping a filter bag cuff therebetween.