Applications for worksite dust collection and removal are quite diverse, ranging from small woodshops to large automotive metal casting foundries. Since each facility has different products and needs, it is important to know which type of dust collector will offer the best performance and efficiency for your unique facility.
There are many factors that go into selecting the type and size and customized options of a dust collector. This article is meant to only be an introduction and to give an overview of some of the more typical factors that should be considered and to give some basic examples.
The three main types of pulse jet dust collectors include baghouses, cartridge collectors and bin vents. Here is a brief summary of each and some examples of common worksite applications.
Baghouses are best suited for large volume dry particulate dust capture. They are typically the largest, and most expensive option for dust collection, performing best where a high volume of dust collection and removal is necessary. Baghouses perform best in applications collecting more than one 55 gallon drum full of dust per day and where airflows exceed 1,000 CFM. Baghouses are usually custom designed and have the largest footprint of all dust collectors. They are also the best option when higher temperatures over 375 degrees are required.
Common Baghouse Applications:
- Automotive Castings
- Tile, Drywall, Fiberboard manufacturing
Baghouses can be used for all applications except the following:
- Smoke / fumes
- Non dust collector applications (not a dry particulate)
- When very high efficencies are required
Cartridge Dust Collectors:
Cartridge dust collectors are typically less expensive than baghouses and have a much smaller footprint. They work best when there are limited space or height restrictions in the work environment. Use of pleated bags in cartridge dust collectors increases filter media square footage without the need for additional space, allowing greater airflow in a much smaller area.
Cartridge dust collectors are available pre-fab and in many cases do not need to be custom built, reducing both costs and lead time. For most applications they are just as efficient at removing dust as baghouses with a few exceptions such as sawdust removal and others.
Cartridge collectors perform best in environments where greater than 500 CFM dust removal is required and there is low dust loading (less than one 55 gallon drum). A cartridge collector is also easier to maintain than a baghouse – filters are replaced from outside the collector, reducing health and safety risks from having to enter the collector to replace filters.
Common Cartridge Dust Collector Applications:
- Steel Fabrication
- Bulk Powder Processing
- Rubber Plant
Here are a few exceptions where a cartridge collector would not be a good fit:
- Higher moisture applications
- Higher temperatures
- Many wood dust applications
- Foundry sand because of moisture
- Large particles such as paper scraps, pulp, pebbles, and other particles that can cause filter damage.
Bin vents are designed to filter the air in work environments where product such as grain, sand, or cement, etc. is being pumped from one location to another. They are designed to efficiently vent silos and tanks while keeping the product inside the silo. Most often they are used for tanks when trucks transfer cement from the collector to the silo. Like cartridge collectors bin vents have a small footprint and are designed to handle lower volume of dust than a baghouse, bin vents typically handle between 400 and 10,000 CFM/ dust loading. Here are a few applications where a bin vent is recommended:
- Tank loading. Allows the air to go out of the tank and the product to stay in.
- Product transfer from one tank to another.
- Conveyor Vent. When a conveyor of product is transferred from one belt to another it is necessary to ventilate the environment so dust doesn’t get in the air.
To learn more about which type of dust collector would fit your needs, call one of our engineers today at (888) 221-0312.