The filter bag is the key element to determine the dust removal efficiency and working temperature of the bag filter. The cost of replacing the filter bag is the main maintenance cost of the bag filter. Therefore, the working life of the filter bag is related to the operating status and cost of the filter.
To extend the service life of dust bag filter bags:
[Use the right filter material]
The choice of filter media should be based on the temperature and chemical characteristics of the gas; particle size, weight, shape, whether or not honing and dust concentration, filtration speed, cleaning methods, emission concentration and bag filter working system and other factors .
In general, the pulse jet bag filter is made of needle felt; the chamber reversing bag filter or mechanical vibrating bag filter is made of woven cloth.
[exquisite sewing technology]
• The technology is advanced, the sewing size meets the design requirements, and the heat shrinkage size is reserved according to the filter type and the use temperature;
• Fully equipped, reasonable stitch length, no skipping stitches, broken stitches, and suture compliance;
• High quality fittings, reasonable fit, no burr or breakage and damage to the filter bag;
• The entire filter bag is free from defects such as pinholes, skipping, and contamination, and is properly packaged. It is not damaged or damp during storage and transportation. Fiberglass filter bags should not be heavily compressed and the storage period is too long, otherwise it will affect the service life.
[proper use method]
External filter bag installation method
• The bag mouth and the porous plate are reliably sealed and fixed;
• The filter bag is vertically suspended below the perforated plate;
• adjacent filter bags do not collide with each other;
• The filter bag fits the frame correctly and the frame is straight and burr-free.
[Reliable and effective cleaning]
When the filter bag is in use, the ash in the dust-increasing area gradually increases and the pressure difference rises. The effective dust removal and dust isolation shall be adopted to keep the pressure difference inside and outside the filter bag within the set range.
【Prevent sudden abnormalities】
When the bag filter is in operation, sudden abnormal conditions should be prevented, such as sudden increase in gas temperature, or entry of corrosive gases, or sudden drop in gas temperature below the dew point, etc., subject to temperature, humidity, chemical corrosion, mechanical wear Or impact and other factors ultrafiltration bag damage and damage.