Ways to Prolong the Working Life of a Dust Filter Bag
First, choose the appropriate filter material
1. The selection of filter material should be considered according to the temperature and chemical characteristics of the gas; the size, weight, shape and dust concentration, filtration speed, cleaning method, discharge concentration and working system of the bag filter.
2. Under normal circumstances, the pulse jet bag filter adopts needle felt; the chamber back blow bag filter or mechanical vibrating bag filter selects woven cloth.
Second, the design of a reasonable structure
1. The structure of the filter bag should meet the requirements of filtering and cleaning of the matched bag filter, and it is easy to install and reliable in sealing. It pursues the corresponding filtering area and good filtering state, and is easy to clean and avoid wear. It is reasonable to match with related components.
2. The outer filter type synthetic fiber filter bag and the frame should be loosely fitted, the outer filter type glass fiber filter bag should be closely matched with the small pitch vertical frame; the inner filter type filter bag should consider and set the tension of the filter bag.
Third, superb sewing technology
1. The technology is advanced, the sewing size meets the design requirements, and the heat shrinkage size is reserved according to the type of the filter material and the use temperature;
2. Complete equipment, reasonable stitch length, no jump stitches, broken wires, and stitches meet the requirements;
3. The accessories are of high quality and reasonable, without burr or breakage to damage the filter bag;
4. The whole filter bag has no defects such as small holes, yarn skipping, staining, etc., and has proper packaging, and it will not be damaged or damp during storage and transportation. The glass fiber filter bag should not be stressed and stored for too long, otherwise it will affect the working life.
When the bag filter is in operation, it should prevent sudden abnormal conditions, such as sudden rise of gas temperature, or entry of corrosive gas, or sudden drop of gas temperature to below the dew point, etc. in order to avoid the damage caused by exceeding the tolerance of the filter bag due to the factors such as temperature, humidity, chemical corrosivity, mechanical wear or impact.
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