Baghouse dust collectors are air purification devices that enable air filtering through bags composed of various materials, which must be cleaned regularly to remove the gathered dust. The popularity of cartridge dust collectors continues increasing due to their main benefit which is the opportunity to pack a large surface area into a small space and to catch tiny particulates (sub-micron) efficiently. Air treatment plays a crucial role in various industries, such as metalworking, which generates smoke and gases containing potentially hazardous substances.

The baghouse dust collectors have been widely used in industries for many years and they still play a crucial role. The basic principle of dust collectors remains the same, new materials and new air treatment techniques make the baghouse collectors more adaptable to solve the problems caused by air pollution than ever.

The construction of all baghouse dust collectors includes a tube sheet to which the bags are attached, an inlet for polluted air, an outlet for filtered air, and an opening at the bottom for collected dust to drop out. The type of baghouse collector influences the location of the mentioned above elements, and the main difference between the types of baghouse dust collectors is the way the bags remain clean.

For example, a shaker baghouse dust collector has a mechanical cleaning by shaking the bag. Generally, the bags are installed at the tube sheet at the bottom, and they hang from the top of the unit. In this air treatment system, air comes in the bottom, then it goes through to collect on the inside of the bags. These dust collectors are not the most efficient ones and their cost is high.

The operation of a reverse air filter baghouse dust collector is based on the entering the polluted air in the collector where dust particles collect on the outside of the bags, and a metal cage prevents the air pressure from breaking them. Also, this air treatment system is cost-effective when utilized for the specific purposes it was designed for.

There is also a pulse jet dust collector that is similar to the previous one, its bags are maintained by metal cages and hang from a tube sheet at the top of the baghouse. The primary drawback of all baghouse air treatment systems is the need to replace the bags, as this messy, labor-intensive task necessitates taking the dust collector offline for a considerable duration.

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