In all kinds of extreme conditions, the dust removal system is an extremely important part of the dust filter bag, and the filter bag directly determines the dust removal efficiency of the dust removal system, and due to the different working conditions, the material of the dust filter bag used is not the same, but because in the use of the process will be subject to the wear and tear of the flue gas dust, so there is often the phenomenon of dust filter bag breakage, and the reasons for the breakage of the dust collector with the The reasons for breakage are also related to the design, manufacture, installation and operation of the dust collector, but the corresponding solutions are different for different locations of wear and tear.

1. Lower part of dust filter bag wear:  lower part wear is generally divided into outer wear and inner wear, lower outer wear more filter bag bottom up within 300mm, the lower serious, up gradually reduce. Then it is possible that the local sewing line of the cloth bag dust collector will be worn off, and the position without being worn sewing line strong good. This kind of wear is mostly caused by deformation of cell plate, too small hole spacing, deformation of bag cage, too long filter bag and other reasons. Individuals have filter bags and bag filter box wall abrasion broken.

Solution: Check the level of flower plate, and use well-made bag cage.

2. Dust filter bag mouth wear: dust filter bag mouth wear occurs mostly in the bag mouth down 350mm or less, there is more damage from the inside to the outside present. The reason for this situation is the work of the back-blowing dust cleaning system, compressed air deviated from the center of the filter bag, directly washing the side wall of the filter bag caused.

When the filter bag in the side of the deviation of the compressed air constantly flushed, first the inner side of the filter bag coating is blown off by compressed air, by the base cloth is blown leak, and then the filter surface will be blown leak to form a hole. Then it will lead to dusty flue gas quickly from the broken hole to enter, flush the broken diagonal, the formation of new broken cavities and new dusty flue gas entrance, the increasing number of cavities assemble finally caused the bag mouth ring broken, and in serious cases even lead to bag head and bag body separation.

Solution: adjust the compressed air pressure, blowing short pipe skew, deformation of the flower plate, and then replace the new filter bag.

3. Dust filter bag lower inside wear, this situation generally occurs in contact with the bag dust collector bag cage position, most of the bag cage and bag cage bottom diameter difference is too large, resulting in bag cleaning and filtration when the change amplitude is too large, with the bag cage abrasion caused by breakage.

Solution: Replace the bag cage with a high quality bag filter.

4. Dust filter bag bottom wear: divided into outer wear and inner wear, if the bottom of the filter bag outer wear, the broken surface will have very obvious wear traces, bottom sewing line, filter material base cloth is worn off, in serious cases the bottom of the bag is broken or the whole off, this kind of wear is due to the bag dust collector's dust hopper in the material level is too high, the airflow raised dust particles directly wash the bottom of the bag, resulting in wear.

Solution: By increasing the dust collector ash bucket unloading volume, adjusting the bag dust collector ash bucket unloading work system, to avoid dust accumulation too high, can avoid the formation of vortex in the ash bucket wear filter bag.

5. Dust filter bag bag body parts wear: usually is the middle of the filter bag vertical strip wear, divided into inside-out and outside-in two cases, when the bag dust filter bag from the inside to outward broken, broken in the bag cage vertical tendons contact, indicating that the bag cage vertical tendons desoldering or rust, the bag will be worn off or blowing pressure is too high, blowing too often, so that the bag and bag cage contact position folding fracture caused by broken.

Solution: replace the bag cage or adjust the blowing device.

But if you find the dust filter bag broken traces from the outside to the inside, broken in the bag cage vertical bar contact. This type of wear is bag cage deformation or bag installation is small, the diameter of the filter bag is large or slack, causing contact between the filter bag and the filter bag, the filter bag and the bag dust collector box components, in the back-blowing process due to the expansion of the filter bag mutual friction to make it wear.

Solution: replace the bag cage and ensure the quality of installation, which also requires the bag dust collector design process, should avoid the filter bag spacing and the distance between the filter bag and the box structure is too small.

6. Dust filter bag inside wear: generally is the bag cage outside diameter and filter bag inside diameter difference is too large, resulting in filter bag cleaning and filter switching swing amplitude is too large, the inside of the filter bag and bag cage friction, resulting in filter bag inside wear, in addition can be found through the usual maintenance maintenance, if the inside of the filter bag broken position at the bag cage, wear at the rust and corrosion traces, mostly bag cage corrosion after the formation of the surface of the angular oxide layer, on Equivalent to the bag filter bag cage surface formation such as sandpaper, every dust cleaning will seriously abrade the filter bag once, slowly leading to filter bag wear.

Solution: Use a high quality bag cage that matches the filter bag.

Dust filter bag is the core of dust collector, it is about the dust removal efficiency of dust collector, once the dust filter bag wear phenomenon, not only will cause dust collector efficiency greatly reduced, but also will accelerate the consumption of dust filter bag life, until it can not be used need to replace, so in the dust filter bag daily maintenance must be timely inspection and repair or replacement of worn out dust filter bag.