초록 ▼

A baghouse filter having a filter chamber separated by a partition between the clean gas side and the dirty gas side. The partition has a plurality of apertures, in each of which is mounted a filter unit for removal and replacement. The housing has an access opening to permit access to the interior

A baghouse filter having a filter chamber separated by a partition between the clean gas side and the dirty gas side. The partition has a plurality of apertures, in each of which is mounted a filter unit for removal and replacement. The housing has an access opening to permit access to the interior of the housing and the opening is sufficiently large to permit withdrawal of the partition from the housing through the opening so as to permit replacement of the filter units exteriorly of the housing. In the present instance, the partition of the housing is mounted on a door closing the access opening, so that the displacement of the access door from the housing automatically displaces the partition from the housing to permit removal and replacement of the filter units. The filter unit assemblies permit mounting of the filter units from the dirty gas side of the partition with suitable sealing to prevent unfiltered gaseous medium from bypassing of the filter units.

대표청구항 ▼

In a bag filter comprising a housing having a dirty-gas inlet, a clean gas outlet, a partition having an operative position in the interior of said housing separating said inlet and outlet, said partition having a plurality of filter openings therein affording passage of gaseous medium from said inl

In a bag filter comprising a housing having a dirty-gas inlet, a clean gas outlet, a partition having an operative position in the interior of said housing separating said inlet and outlet, said partition having a plurality of filter openings therein affording passage of gaseous medium from said inlet to said outlet, each of said filter openings having a filter unit mounted therein, said filter units comprising elongated bags of filter material, said partition and said units comprising a filtering assembly separating particulate matter from the gaseous medium flowing from the inlet to the outlet, said filtering assembly being mounted for displacement from said operative position into a second position affording ready removal and replacement of the filter units in said filter openings; the improvement wherein said housing has an access opening in a front wall thereof, said access opening being coextensive with an outline of said filtering assembly to enable at least a substantial part of said filtering assembly to pass through said access opening upon displacement between said operative and said second positions, a door closing said access opening when said filtering assembly is in said operative position, said filtering assembly having one end mounted on said door so as to effect displacement of said assembly with the door between said operative and second positions, and a free end opposite said one end, and door sealing elements disposed between said door and the housing around the periphery of said opening, and end sealing elements disposed between the opposite free end of the filtering assembly and a rear wall of the housing opposite said opening, said elements being positioned in sealing engagement by displacement of said door and filtering assembly from said second position into said operative position. In a bag filter comprising a housing having a dirty-gas inlet, a clean gas outlet, a partition having an operative position in the interior of said housing separating said inlet and outlet, said partition having a plurality of generally circular filter openings therein affording passage of gaseous medium from said inlet to said outlet, each of said filter openings having a filter unit mounted therein, said partition and said units comprising a filtering assembly separating particulate matter from the gaseous medium flowing from the inlet to the outlet, said filtering assembly being mounted for displacement from said operative position into a second position affording ready removal and replacement of the filter units in said filter openings; the improvement wherein each of said filter openings has recess means along its periphery; each of said filter units includes means mounting said filter unit in said filter opening for removal and replacement from the inlet side of the partition when said assembly is in said second position; said mounting means for each of said filter units comprises a collar encircling said unit at one end, said collar having a cylindrical portion with an outer diameter corresponding to the diameter of said filter opening, at least two locking tabs projecting outwardly from said cylindrical portion a distance to overlap the circular outline of said opening, the projection and circumferential width of said tabs being less than the depth and circumferential width of the recess means to enable passage of said tabs through said recess means upon axial displacement of said filter unit in said opening and to enable engagement of the tabs with the outlet side of said partition upon rotary displacement of said filter unit about the axis of said opening; and sealing means comprising a circlet of resilient elastomeric material anchored to said cylindrical portion and projecting outwardly from said cylindrical portion at a distance from said tabs to seal against the inlet side of said partition, said sealing means having a flared lip projecting radially and axially in the direction of said tabs circumscribing said opening and said recess means to sealingly engage the surface of said partition on the inlet side thereof; and each filter unit further includes a filter bag open at one end and having the open end encircling said collar, circumferential means projecting radially outward from said collar between the end of said filter bag and the tabs, said circlet having its flared lip disposed between said circumferential means and said tabs with a portion below said flared lip sealing against said circumferential means and an extended portion beyond said circumferential means mounted between the open end of said filter bag and said collar to provide a seal therebetween.