A Quick Guide for Choosing Filter Bags
Fabric filter bags are used by different industries to capture dust particles which can be a health hazard, however, selecting the right bag that matches your specific needs can be difficult. Here is how to pick the best fabric filter bags.
Choose a fabric filter made of material which has a great chemistry with the gas stream in your system. If the environment is chemically active or acidic, you need to find a fabric filter bag that will withstand it. A great fabric for such environment is Teflon which is able to chemically resist dry and moist heat conditions. Also, Teflon is great because it ensure dust cake release when the filter bags are cleaned.
The most important consideration when choosing a baghouse filter is the dust properties and particles being filtered. Determine if your dust is bulky, fine or abrasive as the density will greatly impact the type of dust collector you select. Also, keep in mind that the fabric filter bags should support combustion if you are filtering explosive material.
The level of temperature in the baghouse system will also help you determine the kind of filter bag to purchase. The type of bag you choose will depend with the highest level of temperature it is capable of handling. If the temperatures are high, find a fabric that is heat resistant to prevent melting or damage. Fabrics that re great for high temperature filtration includes; felt polyamide and aramid.
Similarly, the moisture level is an important variable that will help you find the right type of fabric for your application. A good fabric that interacts well with various moisture conditions is polyester and this makes it utilized in baghouse systems for agriculture, and woodworking. Besides, it has energy absorption properties and resists most organic solvents, mineral acids and oxidizing agents.
Pick the right size of filter bag that will fit well in your unit’s dust collection system. The length of the filter bags matter because using a longer bag will result to an increase in filtering area and less number of dust collectors will be used. On the other hand, working with a short filter bag will not be effective because a small filter area is covered and the number of bags increased.
Make sure that your brand of filter bags is from a company that is highly recognized for manufacturing the best baghouse filter bags for your application. When making your purchase, ensure that the seller provides you with a variety of fabric filter bags so you can choose the most suitable for your application.