Bag breakage can be caused by any one of mechanical damage, aerodynamic damage, thermal damage, and polymer fiber cracking.
In the process of use, the deformation of the flower plate causes the filter bag to tilt, and the bottom of the filter bag is unevenly spaced. Under the effect of mechanical vibration and airflow, a collision occurs at the bottom of the filter bag, which causes holes and cracks near the filter bag near the entrance of the dust filter, resulting in mechanical damage; the fit of the filter bag and the frame is not adequately affixed, and during the cleaning process, the bag expands and Shrinkage and skeleton contact pressure, increasing the degree of damage.
The aerodynamic damage of the filter bag is mainly due to the high-speed dust-containing airflow at the inlet of the precipitator, or due to the damage of the filter bag, dust is accumulated in the net room, and the dust is washed against the air bag by the dust during the reverse blowing, and the filter bag is increased. damaged. In addition, the purpose of the deflector inlet deflector is to disperse and guide the airflow, to avoid high-speed dust flow directly scouring the filter bag, but the observation shows that the improper design and installation of the deflector can not only play its due role. And the role of dispersed air flow to reduce the dust flow of the filter bag scouring, and it will also be washed to produce holes, the formation of local high-speed dust gas flow, but also caused a new flush point, accelerated filter bag damage; When rotating When the pulse cleaning device fails, the observation hole cannot see the condition of the swivel arm. When the swivel arm has stopped, it is not discovered in time, so the injection is positioned continuously for a long time in one position. Other filter bags are not cleaned, resulting in no resistance. Falling back, due to continuous injection at a location for a long time, resulting in damage to individual filter bags.