Fabric filter bags are widely used in most industries to remove impurities and dust particles that may affect the performance of the company. The following are some factors to consider when choosing a filter bag.
First of all, know what you are filtering before you begin your purchase for a filter bag. This will enable you to choose the right material of your filter bag that will tolerate the chemicals and the environment of your system to keep your plant and your workers safe. For instance, certain materials are highly flammable, therefore, you need to consider fibers such as epitropic felt, acrylic felt, polyester and polypropylene that support combustion.
Filter bags come in various sizes, hence, you need to know the exact specification that will work with your system. You can take the measurements including the length, width and diameter so as to know the right size of filter you will need. If you are uncertain about the right filter size for your application, be sure to contact your manufacturer for guidance.
Temperature is another thing that you should consider when choosing your filter bag. It is important to ensure that the filter is able to handle the temperature in the baghouse system. Filters that are not designed to withstand high temperatures risk being destroyed when exposed to high heat. Examples of heat-resistant fabrics include aramid or felt polyamide.
You can also narrow down your options by determining the chemistry of the filter. Consider if the chemical gas stream is highly active or acidic and consider a fabric that will be able to withstand these particles. Teflon fibers are ideal to use in extreme conditions because they are resistant to both dry and moist heat degradation. Besides, due to its low friction properties, it provides good cake discharge and it can be used in boilers, incinerators and carbon black plants.
Think about the dangers of a static shock in your factory before you select your fabric filter bag. When you know which substances are being filtered, you will be able to choose a filter bag that will best address the risk of a static shock. In order to reduce these risks, you can opt for antistatic fabrics like fabric woven with carbonized filament, fabrics made of polyester felt or copper ground wires.
It is also crucial to ensure that you purchase your filter bags from a reputable company ensures high quality. The company should have experienced staff and qualified sales designers who will work to custom design the bags to meet your specific requirements.