High-Temperature Flue GasMade from aromatic polyamide (aramid) fibers through a needle-punching process, aramid filter bags are designed for high-temperature dust collection. They can operate reliably at 204 °C, with a peak operating temperature of up to 230 °C. Featuring excellent high-temperature resistance, flame retardancy, and corrosion resistance, they are widely used for flue gas filtration in demanding environments with high temperature, heavy load, and corrosive dust conditions.
The dust collector filter bag primarily consists of a bag opening, bag body, and bag bottom. The bag body is made from fibers through a needle-punch nonwoven process, forming a three-layer structure: fiber layer – base fabric – fiber layer.
When dust-laden airflow passes through the filter bag, dust is retained on the outer surface of the filter bag (surface filtration) or within the filter material (depth filtration), while clean air passes through the medium and is discharged through the outlet.
| Product model | PFB-AR | |
| Product name | Aramid filter bag | |
| Fiber | Aromatic polyamide | |
| Basis weight (g/m2) | 550 | |
| Thickness (mm) | 1.8 | |
| Air permeability (L/m2·s) | 200–300 | |
| Breaking strength (N/5 × 20 cm) | Warp | ≥ 1120 |
| Weft | ≥ 1230 | |
| Elongation at break (%) | Warp | < 50 |
| Weft | < 55 | |
| Operating temperature (°C) | Continuous | 204 |
| Instantaneous | 230 | |
| Post-treatment process | Singeing, calendering, laminating, water and oil repellent, anti-static, etc. | |
