Tips for Choosing the Best Fabric Filter Bags
The main benefit of fabric filter bags is to capture and remove air borne dust thus ensuring clean air. Here is a guide for selecting the right filter bag for your system.
Chemistry is critical factor in selecting the right filter bag to match your specific needs. It’s chemistry with the gas stream can be highly active/acidic, hence, you want a filter bag that will be able to resist and withstand the dust particles that are chemically active. For example, if your system has chemically active particles, consider choosing Teflon fiber which can be used in sever conditions due to its resistance to moist and dry heat degradation. Furthermore, it is excellent for cake dust release therefore ensuring that not much dust remains of the filter bags after cleaning.
Before you purchase a fabric filter for your system, it is important to know the size of dust particles that you are looking to filter. The nature of dust particles to be filtered may vary as some are fine particulate, abrasive of even bulky. Also, keep in mind that the fabric filter bags should support combustion if you are filtering explosive material.
When selecting your filter bags, you need to contemplate the temperature in the baghouse. If the temperatures in the baghouse system are very high, then you need to choose filter bags that are able to withstand it. When you choose the wrong bag to work in high temperatures environment, it is likely to get destroyed or melt in the process. Therefore, instead of using thermoplastic, consider fabrics such as felt polyamide and aramid.
In addition, the moisture level in your system may affect the type of baghouse filters you choose. A good fabric that interacts well with various moisture conditions is polyester and this makes it utilized in baghouse systems for agriculture, and woodworking. It is also widely used because of it is effective in energy absorption and its resistance to mineral acids as well as most oxidizing agents and organic solvents.
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. However, a filter bag that is too short will reduce the dust removal efficiency and many dust collector filter bags will be required.
It is also important to ensure that you get your supplies from a reputable company to ensure that they are high quality. The company should have a vast selection of baghouse filter bags so it will be easy for you to choose the correct bag based on its application and your baghouse system.