Today, the bag filter in the continuous progress, the progress of the main performance in the filter media innovation and cleaning methods of change. The filter bag is the heart of the bag filter, so the cost of maintenance of the filter bag in the proportion of the cost of maintenance is the largest, up to more than 70% of maintenance costs. So the filter bag is the most critical factor in determining the performance of the precipitator. High temperature flue gas on the filter bag a great impact, will affect the life of the filter bag, serious bag damage will cause damage.
(1) high temperature burned
High temperature damage to the filter bag is fatal. Such as a pulverized coal kiln, because the dry coal particles are very small and particularly sticky, cleaning is not ideal, so that the filter bag surface to maintain a large number of dry coal, and this dry after the coal, the ignition is very low , When the high temperature flue gas into the dust collector, will quickly ignite the bag surface of the coal, resulting in the entire filter bag and skeleton all burned.
(2) Mars burns
In addition to high temperature burned, the smoke in the smoke on the filter bag is also very serious. Such as coke oven, drying kiln, chain furnace, cupola, electric furnace, blast furnace, mixed iron furnace in the production process will have a lot of Mars into the flue gas, such as the treatment of Mars is not timely, especially the filter bag surface dust layer When thin, Mars will burn the bag, forming an irregular round hole. But when the dust layer on the surface of the filter bag is thick, Mars will not burn the bag directly, but will cause the surface of the bag to form a deep color baking traces.
(3) high temperature shrinkage
High temperature flue gas on the filter bag is another kind of damage is high temperature shrinkage, although the use of different media temperature is different, but when the flue gas temperature exceeds its use temperature, if its warp shrinkage is too large, will filter bag in the length The direction of the size of the short, filter bags at the end of the bag holding the skeleton and damage and damage. If the filter bag zonal heat shrinkage is too large, will make the filter bag in the radial size becomes smaller, the filter bag will tightly hoop on the skeleton, or even unable to withdraw the skeleton. So that the filter bag has been in a state of force, resulting in shrinkage of the filter bag deformation, hardening, brittle, to speed up the intensity of wear and tear, reducing bag life. As the filter bag will be tightened after the tight hoop in the skeleton, when the filter bag is difficult to deformation and is not conducive to blowing cleaning, resulting in high resistance bag bag.
(4) ash bucket dust storage heat burned bag
If the dust can not be discharged in a timely manner, the dust will accumulate in the hopper for a long time. The temperature of the ash bucket will increase, and the bag will become brittle and hardened at high temperature. Burned, especially the dust contained in the flammable substances, will be burning in the hopper, and thus burn the filter bag.
(5) Explosion
With the popularity of bag filter, bag dust collector dust explosion also showed an upward trend. Such as Shanghai, a dry steel coke quenching and extinguishing system, due to the front of the fire wall manufacturing problems, resulting in Mars into the dust collector to cause an explosion, the dust collector inlet pipe blinded dozens of meters away, the dust collector box serious Deformation. Another example is the carbon machine in Shenyang, because the sawdust in the carbonation process to produce a lot of tar and hydrocarbons and other flammable, explosive substances, and tar stick in the filter bag with the passage of time piled up, when there are Mars into After the dust collector caused a dust explosion. Dust explosion of the energy generated by the explosion can make a serious deformation of the board, filter bag burst.
浙江天台丰顿滤料有限公司是一家专业从事：液体过滤袋、工业滤布、滤布、滤袋、除尘袋生产销售的滤布厂家，多年来在液体过滤袋、滤袋、工业滤布、除尘袋生产上积累了丰富的经验和领先的技术。
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