IAC - Baghouse Filter Cage Configurations
IAC supplies a wide range of baghouse dust collector filter cage configurations. Common wire cage constructions consist of 10, 12, or 20 vertical wire stringers. Standard horizontal ring spacings are 4”, 6” or 8”. If plenum height restrictions are a problem, two-piece filter cages are available. The number of vertical wire stringers used in filter cage construction depends on the applicable requirements and fabric media used for the filter bag. Baghouse filter cages with 10 wire stringers are usually used on heavier weight felts, while 12 wire stringers are usually used on lighter to medium weight felts. Filter cages with 20 wire stringers are usually used on fiberglass fabric filters and other media that require maximum support, thereby reducing the excessive flexing of the fabric yarns that usually causes premature bag failure.
The strongest filter cages for pulse-jet baghouses are known as a “rigid wire” cage. A rigid wire filter cage is designed to provide uniform support to the overall length of the fabric filter, utilizing stringer wires that are equally spaced around the circumference of the filter cage and welded to support rings that are spaced along the length of the filter cage.
Special filter cage tops, such as roll band and roll flange styles, are also welded to the stringer wires; thereby developing a strong internal assembly from which to attach the filter cage and filter bag to the baghouse tubesheet. The filter cage bottom is either interlocked to a stringer ring or welded to the stringers. Either method is equally sufficient for support.
IAC also supplies oval bag filter cages.
