Dust removal filter cartridges are key components in dust removal systems. Here is the relevant introduction:

In terms of materials:

- Polyester fiber non-woven fabric: It has strong waterproof performance, is acid and alkali resistant, has high filtration precision, low operating resistance, high wear resistance and can be washed.
- PTFE-coated polyester non-woven fabric: It has high precision and low resistance. It is used for flue gas filtration and has insulation properties and can withstand high and low temperatures.
- Wood pulp fiber filter paper: It has the characteristics of flame retardancy, a large filtration area, small pore size, high air permeability, but it cannot be washed and has a relatively short service cycle.
- Anti-static polyester fiber: It has an anti-static function. Its surface is covered with a very thin conductive and breathable aluminum coating, which has the functions of preventing electrostatic sparking and explosion.

In terms of structural design:

- Filter cartridge shape: It includes round, oval, conical and triangular shapes, etc., and is usually installed on the internal brackets of the dust collector.
- End caps: They are generally made of metal materials, such as galvanized sheets or stainless steel. They have high strength and can withstand certain pressures. They are tightly connected to the installation plate of the dust collector through sealing rubber rings.
- Skeletons: They are mostly circular skeletons made of carbon steel or stainless steel materials to support the filter materials, prevent the filter materials from collapsing and ensure the overall structural strength.

Working principle:
When the dusty gas enters the dust collector and passes through the filter cartridges, dust particles are captured by the filter materials due to inertial collision, interception, diffusion and other effects. Larger particles are mainly intercepted by inertial collision, and smaller particles are adsorbed by contacting with the fibers of the filter materials through the diffusion effect. The clean gas is discharged through the center of the filter cartridge.

Performance characteristics:

- High filtration efficiency: For dust with a particle size greater than 0.3μm, the filtration efficiency can reach more than 99%.
- Small floor area: Compared with traditional bag dust collectors, the filter cartridges are compact in shape. Under the same filtration area, they occupy less space.
- Convenient installation and maintenance: The filter cartridges are fixed on the installation plate of the dust collector by means of slots or bolts. The installation is simple, and the operation is easy during maintenance and replacement.

Application fields:
They are widely used in industrial manufacturing, such as machining and foundry industries, building materials industries such as cement plants and ceramic factories, as well as in the matching of environmental protection equipment.