Factors Affecting the Service Life of Dust Filter Bags?

The service life of dust filter bags is key to baghouse efficiency and cost, determined by four core factors. 

First, the filter material is fundamental: different materials vary in high-temperature, corrosion, and wear resistance. For example, polyester is suitable for temperatures below 130℃, PPS works stably at 160-180℃, and PTFE resists strong acids and alkalis. Mismatched materials cause rapid aging or damage.

Second, working conditions are critical. Long-term high temperatures damage the filter fiber structure, while high humidity causes dust crusting and bag blockage. High dust concentration, abrasive dust, and corrosive flue gas components also accelerate wear and reduce service life.

Third, cleaning methods and frequency directly impact wear. Pulse jet cleaning is efficient but impactful—excessive frequency or pressure wears bag mouths, while insufficient cleaning causes blockage. Adjusting parameters to suit dust characteristics extends bag life.

Fourth, standardized installation and maintenance matter. Poor installation (loose, folded, or scratched bags) leads to damage, while inadequate maintenance (unclean ash hoppers, worn seals) causes blockage and air leakage. Filter bag quality and pre-treatment effects also indirectly affect service life.