Industrial dust collectors are designed to clean up air from industrial machinery and outdoor equipment. They remove the harmful particles from factory workers’ breathing areas, which protects their health and safety, improves efficiency, and reduces costs for companies.
Industrial dust collectors are either wet dust collectors or dry-running cyclones, depending on how it is designed to be used. A modern industrial dust collection system has a high-efficiency primary filtration medium, regardless of type. A wet dust collector will have a water supply attached to the unit so that when activated, high-pressure water sprays out of all its openings in order to keep the air cool and clean by minimizing any risk of fire within the system through quick evaporation of whatever combustible materials may come in with the inflowing airstream. A dry-running cyclone works just like an ordinary vacuum cleaner moving the air into itself using centrifugal force. Once inside, it collects what can potentially cause harm with special kinds of filter bags, keeping hazardous pollutants away from your breathing zone.
The most important component in the whole process would be the main filter unit itself. There are different kinds of filters used, depending on the possible contaminants that may cause harm to workers. Minimum personal exposure limits (PELs) for respirable materials including finely divided dust from solids were established by the Occupational Safety and Health Administration (OSHA). The OSHA PEL guideline is the basis of the design and configuration of filter units in industrial dust collectors. The three most common categories are baghouse filters, micro-filtration, and HEPA filters.
Baghouse filters are designed for any kind of dust or other solid materials that can be captured using a mesh fabric made from synthetic fibers. Baghouses use a series of fabric bags to capture the dust particles. The bags are placed in a frame and the frame is placed inside the collector. When the collector is turned on, air enters the bottom of the baghouse and flows up through the bags. The dust particles are captured by the fabric bags and fall into a collection bin below the baghouse. The specific type of bag depends on what kind of material needs to be captured, while how many bags you need will depend on the size of your industrial dust collector.
Micro-filtration takes up smaller particles suspended in the air through an exhaust fan or blower with housing installed between two porous plates with different levels of density to one another. Micro-filtration can be used with any type of industrial dust collector. When choosing this type of filtration, it is important to note that they are very aggressive in terms of pressure drop and subsequent energy consumption. However, they are effective at removing all solid particles down to 0.5 microns, including sub-micronic particles which traditional bag filters cannot capture (<1 micron). Depending on local regulations, micro-filtration may be appropriate for disposing of collected solid wastes by incineration or for recycling.
HEPA filters, or high-efficiency particulate air filters, will remove up to 99.97% of particles in the size range of 0.3 microns and larger from the airstream with seven different stages of filtration before they can exit into the atmosphere. HEPA filters work by trapping particles on the surface of the filter media. The particles stick to the fibers in the filter and form a layer that helps to capture additional particles. The more particles that are captured, the more difficult it becomes for new particles to stick to the filter media, which means that the filter becomes more effective over time. This is a good option for places where people may be exposed to harmful dust that would cause respiratory problems later on in life, such as construction sites or even mining facilities where explosives are used on massive scales.
A dust collector uses two large fans to suck up any loose particles from the air in a given area, much like a vacuum cleaner does for dirt on your floor. It works by creating a low-pressure zone with one fan inside the unit and one fan outside the unit next to where you want clean air. The pressure difference between these two areas causes any tiny particles in the air to enter through tiny holes in the box’s metal housing and get sucked into the unit to be filtered. The filtration system in a dust collector is what separates one from a regular vacuum cleaner. In a dust collector, there are two main categories of filters: bag filters and cartridge filters.
Bag filters need to be replaced or emptied once they fill up with dirt, whereas cartridge filters only need to have the dirt removed from their surface through a process known as air washing. There are also more advanced types of cartridges such as HEPA (High Energy Particulate Air) cartridges which filter out even more microscopic particles. These extra high-quality cartridges are more expensive, but worth it if you’re allergic to just about anything or worry about lead poisoning during work hours.
The different types of filters are important to consider when purchasing a dust collector. Some combination units combine bag and cartridge filter options, so they can do everything, but many businesses will have one or the other dedicated to their specific need. Due to the cost of replacement bags, most companies who use bag filters over cartridge filters install external chutes that speed up the removal process. This is especially important for high production facilities that may empty hundreds of bags in a day.
All dust collectors come equipped with powerful lamps inside which are used as warning lights in case any parts need maintenance. They also have either manual or automatic drain valves on the bottom, depending on whether you want it connected to your water lines or not. Last but not least, dust collectors also have a timer on them to limit the amount of time it’s running by automatically turning off when needed.
No matter what type of business you work at or what industry you’re in, having an efficient way to remove dust from the air is crucial for your health and well-being. Now that you know how they work, you can make sure whatever system your company purchases will be ideal for everyone there.