Description

P84 filter bags are high-performance filtration solutions, particularly valued for their exceptional temperature resistance and unique fiber structure. They are manufactured by needle-punching P84 (polyimide) fibers, resulting in a filter medium capable of handling demanding industrial conditions.   

Here’s a more detailed look at P84 needle felt filter bags:

Manufacturing and Properties:

• Material: These bags are made from P84 (polyimide) fibers, known for their high thermal stability. The fibers are needle-punched to create a robust, non-woven felt.  
• Needle Punching: The needle-punching process interlocks the P84 fibers, forming a porous filter medium with excellent filtration efficiency.
• Unique Fiber Structure: P84 fibers have a distinctive tri-lobal (leaf-shaped) cross-section, which significantly increases the surface area. This enhances filtration efficiency and dust collection.  
• Temperature Resistance: P84 filter bags exhibit excellent high-temperature stability, capable of withstanding continuous operating temperatures up to approximately 260°C (500°F), with short-term peaks reaching higher.
• Chemical Resistance: They offer good resistance to various chemicals, including acids.  
• Filtration Efficiency: The unique fiber structure contributes to high filtration efficiency, effectively capturing fine particles.   
• Durability: P84 filter bags provide good wear resistance, contributing to a longer service life.

Applications:

• Cement Industry: Used in kiln exhaust filtration systems.   
• Waste Incineration: Essential for filtering gases from waste combustion processes.
• Power Generation: Employed in coal-fired power plants for flue gas filtration.   
• Chemical Processing: Utilized in environments with corrosive gases.   
• Metallurgical Industry: Used in the filtration of gases from various metal processing applications.
• Asphalt Plants: used to filter the gases produced during the asphalt production process.

Advantages:

• High-Temperature Stability: Excellent performance in high-temperature environments.
• High Filtration Efficiency: The unique fiber structure enhances particle capture.
• Good Chemical Resistance: Suitable for applications with chemical exposure.
• Long Service Life: Durable construction for extended use.
• Low Pressure Drop: P84 filter bags can provide efficient filtration with a low pressure drop.

Finish Treatment:

• Antistatic Line Type (AS–L).
• Antistatic Blend Type (AS–B).
• Antistatic Cross Line Type (AS-X).
• PTFE Membrane (M).
• PTFE impregnation (TPI).
• Water & Oil Repellent (WR).