초록 ▼

A filter bag assembly of hybrid construction is disclosed that reduces the height of the filter bag assembly as well as its overall cost. The assembly indicates an elongated filter body portion, an end cap closing at one end of the filter body, a collar disposed at the other end of the filter body.

A filter bag assembly of hybrid construction is disclosed that reduces the height of the filter bag assembly as well as its overall cost. The assembly indicates an elongated filter body portion, an end cap closing at one end of the filter body, a collar disposed at the other end of the filter body. The collar is molded onto the filter body and an inner venturi portion molded therewith. The assembly also includes a fabric extension portion that is attached to the interior of the collar. This extension may have a diameter greater than that of the collar so as to permit the filter body to be used in a tubesheet opening that is usually larger than that of the collar diameter. A snap band is contained within the collar for retaining the assembly in a tubesheet opening.

대표청구항 ▼

[ I claim:] [1.] A filter bag assembly for use in a baghouse, the filter bag assembly being adapted for fitting within an opening of a tubesheet, said filter bag assembly further providing filtration of a gas stream that is passed from one side of the tubesheet to the other side of said tubesheet, t

[ I claim:] [1.] A filter bag assembly for use in a baghouse, the filter bag assembly being adapted for fitting within an opening of a tubesheet, said filter bag assembly further providing filtration of a gas stream that is passed from one side of the tubesheet to the other side of said tubesheet, the opening having a predetermined diameter, comprising:an elongated tube of a permeable filter media having opposing first and second ends and a hollow interior portion;a base portion disposed at the filter tube first end closing said filter tube first end and forming a base of said filter bag assembly;a hollow collar portion formed from a preselected material, the collar portion being disposed at said second end of said filter tube and forming a filter bag assembly passage communicating with the filter tube interior portion, said collar portion having an outer diameter that is approximately equal to an outer diameter of said filter tube, said collar portion outer diameter being less than said tubesheet opening predetermined diameter so that said filter tube and said collar portion may be inserted into and removed from said tubesheet opening; and,a hollow extension portion formed from a material that is different from said collar portion material, the extension portion being attached to said collar portion and extending upwardly away from said collar portion, said extension portion defining an extension of said filter bag assembly passage, said extension portion further including a snap band enclosed therein for engaging said tubesheet when said filter bag assembly is inserted into said tubesheet opening, said extension portion further including a seal portion disposed at an end thereof for providing a seal between said tubesheet opening and said filter bag assembly.