Apparatus for separating particulate matter from a gas stream

Claim 1

In a reverse pulse baghouse having a dirty-air chamber and a clean-air chamber separated by a horizontally disposed tube sheet which has an upper surface adjacent the clean-air chamber and a lower surface adjacent the dirty-air chamber and which suspendingly supports a plurality of filtering assemblies each comprising a cylindrical fabric sleeve having an open end portion, an elongated tubular portion and a closed end portion, a cylindrical foraminous cage, and a venturi, a connection for mounting said filtering assembly to said tube sheet, said connection comprising: a cylindrical collar integrally joined to said tube sheet to define a circular opening therethrough, the major portion of said sleeve being disposed within the dirty-air chamber with the upper end portion received through said circular opening and turned over said collar; a clamping band encircling the collar and the sleeve turned thereover to securely bias said sleeve to said collar; said cage connected to said venturi and being disposed within said fabric sleeve; said venturi including a neck portion received within the upper end portion of said sleeve and said collar and a peripheral portion adjoining the upper end of said neck portion, and of greater diameter than the diameter of said circular opening to overlyingly rest upon said filter covered collar for support on said tube sheet.