Daily maintenance of polypropylene filter bags

The daily maintenance of polypropylene filter bags should focus on the protection of filter materials, cleaning frequency, and control of operating parameters. The specific points are as follows:

Cleaning and maintenance

Conventional cleaning: After disassembly, soak in a 2%~5% NaOH solution for 10~24 hours, gently brush surface stains with a soft bristled brush, rinse and let dry to 90% before installation. ‌

Stubborn stain treatment: Soak calcium salt scaling in 1% to 3% oxalic acid; Organic residue is cleaned using 40kHz ultrasonic waves for 15-30 minutes. ‌

Cleaning taboos: Do not use concentrated sulfuric acid with a concentration greater than 60% to prevent fiber brittleness; Do not use hard objects to scrape the filter cloth. ‌