Baghouses
Shaker baghouse
Also known as shaker filter, mechanical shaker baghouse.
A shaker baghouse cleans its filter bags by mechanically shaking the bag-support frame during a compartment-offline cycle. The shake action flexes the bag fabric, cracks the cake and lets it fall into the hopper. Shaker design is a legacy technology still used on smaller industrial duty (machining shop dust collection, light foundry exhaust, light cement applications) but largely displaced for new installations by pulse-jet designs.
Limitations
- High mechanical wear on bag attachments, fabric and shaker motors
- Slow cleaning cycle, requires compartment isolation
- Limited filtration capacity per footprint
- Difficult to scale to large industrial throughput
Why sonic horns help on shaker baghouses
Shaker cleaning is fundamentally gentle and uneven, leaving cake residue between cycles. Sonic horns supplement the shake action without adding mechanical wear, improve cleaning consistency across the bag rows and reduce overall differential pressure.
Related terms
Related terms
- BaghouseA baghouse is the structural enclosure that holds the bags, cages, tubesheet, cleaning system and hoppers of a fabric-filter dust collector. Sized in compartments for online isolation.
- Filter bagA filter bag is the cylindrical fabric sock that traps particulate inside a fabric filter. Media selection depends on temperature, gas chemistry, dust load and cleaning cycle.
- Compartment isolationCompartment isolation is the procedure of closing inlet and outlet dampers on one baghouse compartment so it can be cleaned or have bags replaced while the rest stays online.
- Sonic hornA sonic horn is a pneumatically-driven low-frequency sound emitter (typically 60–400 Hz at 140–180 dB SPL) used to dislodge particulate fouling from boilers, ESPs, baghouses and process vessels.