The dust filter bag (also called a dust collector bag or baghouse filter bag) is the core filtration component of a baghouse dust collector, designed to capture fine particulate matter from industrial exhaust gases. It is a cylindrical or flat fabric element that separates dust from air, ensuring clean emissions and workplace safety.
1. Common Materials & Applications
| Material |
Key Features |
Continuous Temp |
Typical Uses |
| Polyester (PE) |
Cost-effective, good strength, acid-resistant |
≤130°C |
Cement, metallurgy, general dust |
| PPS (Polyphenylene Sulfide) |
Excellent chemical stability, acid/alkali resistance |
≤160°C |
Coal-fired boilers, power plants |
| Aramid (Nomex) |
High-temperature resistance, flame-retardant |
≤204°C |
Asphalt mixing, carbon black production |
| PTFE (Teflon) |
Ultimate corrosion resistance, self-cleaning |
≤260°C |
Waste incineration, chemical industry |
| Fiberglass |
Ultra-high temperature resistance |
≤280°C |
Steel mills, high-temperature flue gas |
2. Performance Parameters
- Filtration Efficiency: >99% for fine particles (even sub-micron).
- Air Permeability: Balanced airflow resistance and dust retention.
- Pressure Drop: Low and stable to reduce energy consumption.
- Service Life: Depends on material, temperature, dust load, and cleaning frequency.
3. Applications
Widely used in industries such as thermal power, steel, cement, waste incineration, chemical, pharmaceutical, and food processing for dust control and air pollution reduction.
4. Advantages
- High efficiency for fine dust.
- Adaptable to various temperatures and chemical environments.
- Cost-effective for large-scale industrial dust collection.
- Easy to install, replace, and maintain.