Various methods to extend the life of filter bags
The filter bag is the key element that determines the dust removal efficiency and working temperature of the bag filter. The cost of replacing the filter bag is also the primary maintenance cost of the filter bag. Therefore, the life of the filter bag is related to the operating conditions and cost of the dust collector. Therefore, daily maintenance and maintenance of the skeleton of the dust collector is very important. So how can the life of the dust removal skeleton be extended?
The correct method of use: make sure that the filter bag in the dust collector is working under the working conditions to which it is adapted. If working conditions change, it should be immediately bypassed or emptied to avoid adverse effects on the life of the filter bag.
Correct dust cleaning method: when using the filter bag, the dust area gradually increases, and the pressure difference increases. The dust must be effectively separated to keep the pressure difference between the inside and outside of the filter bag within the established range.
Select the appropriate filter material: filter material should be selected according to moisture, temperature, and chemical characteristics of the gas, size, weight, shape of the particulate matter, whether it is pecked and dust concentration, filtration speed, the cleaning method, emission concentration and bag factors, such as the working system of the dust collector, are considered thoroughly. In general, needle jet felt is used for the pulse jet bag filter, and woven fabric is used for the subchamber reverse blow bag filter or mechanical vibration bag filter.
Reasonable structure: must meet filter requirements and dust removal bag filter, and is easy to install and reliable in sealing. Following the corresponding filtration area and good filtration condition, it is easy to remove dust and try to avoid wear. Reasonable coordination with related parties. If the synthetic fiber filter bag of the external filter type and the frame must coincide loosely, the fiberglass filter bag of the external filter type must be closely combined with the small vertical bar frame; The filter bag of the internal filter type should consider and set the filter bag tension.
Excellent sewing technology: the sewing size meets the design requirements, and the thermoshrink size is reserved according to the type of filter material and temperature of use. The stitch pass is reasonable, without stitch breaks or thread breakage, and the stitch meets the requirements. Reasonable adjustment, no burrs, or breaks that damage the filter bag. The entire filter bag is free of defects, such as small holes, thread breaks, and inlays, and is properly packed. It will not be damaged or dampened during storage and transport. The fiberglass filter bag should not be pressed and stored for too long, otherwise, it will affect the service life.
