Types of Filter Bags

Bag Filter August 21, 2024 Filter Bag

Polyester Antistatic Dust Filter Bag

The polyester antistatic dust filter bag is characterized by high porosity, good air permeability, excellent acid resistance, and good wear resistance. It is a widely used variety of non-woven needle-punched filter material.

Polyester antistatic dust filter bags are commonly used in industrial environments across various industries, including metallurgy, chemicals, construction materials, smelting, power generation, ceramics, machinery, mining, petroleum, pharmaceuticals, dyes, and food processing. The fabric is made from polyester fibers on a base cloth, which is woven from high-strength, low-elongation yarn through a needle-punching process.

PPS High-Temperature and Corrosion-Resistant Needle-Punched Felt Dust Filter Bag

The PPS high-temperature and corrosion-resistant needle-punched felt dust filter bag is made using imported PPS fibers. Due to its acid and alkali resistance, high-temperature performance, wear resistance, and crease resistance, this composite felt can withstand temperatures of up to 170°C to 200°C for short periods, making it suitable for filtering flue gases with high sulfur content in thermal power plants, waste incineration, and coal-fired boilers. Key features of the PPS high-temperature needle-punched felt bag include a continuous working temperature of up to 190°C and an instantaneous temperature of 220°C. It can be used in both oxygen-rich and acidic/alkaline environments, but the temperature must be controlled within an appropriate range to avoid hydrolysis and acid/alkali corrosion.

PTFE High-Temperature and Corrosion-Resistant Needle-Punched Felt Dust Filter Bag

The PTFE high-temperature and corrosion-resistant needle-punched felt dust filter bag is made from polytetrafluoroethylene (PTFE) material, which is known for its excellent mechanical properties and very low surface energy. PTFE possesses a series of outstanding features:

High-Temperature Resistance: Long-term use temperature of 200°C to 260°C.
Low-Temperature Resistance: Remains flexible even at -100°C.
Corrosion Resistance: Resistant to aqua regia and all organic solvents.
Weather Resistance: Exhibits the best aging resistance among plastics.
High Lubrication: The lowest friction coefficient among plastics (0.04).
Non-Stick: Has the lowest surface tension among solid materials, making it non-adhesive to any substances.

P84 High-Temperature Needle-Punched Felt Dust Filter Bag

The P84 high-temperature needle-punched felt dust filter bag features high temperature resistance, acid and alkali resistance, and good crease resistance, ensuring a long service life. The surface undergoes chemical treatment and post-processing, making it easy to clean, oil-resistant, and water-repellent.

Exceptional Temperature Resistance: Capable of continuous operation at 260°C and short-term operation at 280°C.
Excellent Acid and Alkali Resistance, Oxidation Resistance, and Hydrolysis Resistance.
High Efficiency at Low Pressure.
Wide Range of Applications.