Dust collector filter bags are an essential part of any baghouse system. These bags filter out dust particles from industrial processes and keep the air clean. The choice of filter media for the bag is critical to the performance and longevity of the baghouse system. In this article, we will discuss the top 7 popular dust collector filter bag media.
1- Polyester
Polyester media is the most common filter media used across many industry applications due to its excellent filtration properties and affordability. Both needled felt and woven polyester can be treated with several finishes and membranes to increase efficiency and performance in varying operating conditions. Polyester has an operating temperature limit of 275°F.
2 – Aramid
Aramid, also known as Nomex, is an ideal filter media for high-temperature applications such as asphalt batch plants, furnaces, and dryers due to its excellent filtration and abrasion properties. Both needled felt and woven aramid can be treated with several finishes and membranes to increase efficiency and performance in varying operating conditions. Aramid has an operating temperature limit of 400°F.
3 – Fiberglass
Fiberglass media is commonly used in industries such as energy, cement/concrete/aggregates, and agriculture, where the temperatures range up to 500°F. Fiberglass media is typically woven, which makes the efficiency of a plain fiberglass media lower than most felts. However, various membranes and finishes can be added to fiberglass to increase filter efficiency and performance in harsh baghouse conditions.
4 – P84
P84 media is ideal for applications with high temperatures up to 500°F. It is better than fiberglass in handling acids and results in less abrasion to the filters due to filter media flex.
5 – Teflon (PTFE)
Teflon (PTFE) is one of the most expensive and highest performing filter media available for a wide range of applications. It can bear well against chemical and acid resistance, high temperatures, and moist heat. Teflon membrane can also be applied as a treatment on other filter medias to further extend filter life and reduce system wear.
6 – PPS
PPS, also known as Ryton or Procon, is a filter bag media commonly used in dust collection applications where excellent resistance to acids and alkaline is required. It is used in dust collection applications for asphalt plants, cement mills, incinerators, and coal-fired boilers. PPS filter media has the ability to capture fine, powdery, and sometimes abrasive dust.
7 – Acrylic
Acrylic fibers are available in two forms: co-polymer acrylic and homopolymer acrylic. Co-polymer acrylic fibers are generally used for clothing, apparel, and blankets, whereas homopolymer acrylic fibers are used in applications that require high chemical and thermal resistance, such as high-moisture environments and acidic environments.
In conclusion, choosing the right filter media for your baghouse system is crucial for its performance and longevity. Understanding the properties and benefits of different filter media can help you make an informed decision. Factors such as operating temperature, chemical resistance, and efficiency should be considered when selecting the appropriate filter media.