Dry dust collectors and humidity don’t react well together. Baghouses and cartridge collectors operate by having dirty (dusty) air enter the housing. Multiple filters (bags or cartridges) are located in the housing. The air travels through the filter and then exits the dust collector. The filters are a mesh of fibers that allow air to travel through small holes, while dust is too large to pass. The dust builds up a layer (dust cake), further limiting the subsequent dust’s ability to pass through while allowing the air to pass. From time to time the dust collector will clean the filters by shaking them or using compressed air to expand them. This causes the outer layer of the dust cake to fall off.
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Posts about Compressed Air in Dust Collection System:
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While not cleaning your baghouse filter is bad, cleaning your filters too much isn’t a very good idea either. If you don’t clean your filters enough, dust will build up on them faster and they will plug up faster; however, cleaning them too much can cause issues too.
Are you wasting time using compressed air to clean your baghouse or cartridge collector?
Baghouses and cartridge collectors often use compressed air / plant air to clean the filters. By pushing compressed air through the filter, in theory, dust should be removed from the filters. However, air compressors are high maintenance pieces of equipment that have high operating costs. Also, the filters are never completely dust free after an air blast, meaning that, over time they become blinded. This high time-and-monetary cost can be lowered by breaking away from using compressed air and instead using a cyclone pre-filter in your dust collection system.