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What should be paid attention to when choosing bag filter?

Nov 21, 2020

What should be paid attention to when choosing bag filter? As we all know, the dust bag of bag filter is one of the main components of the equipment as the core filter component. The specifications, dust removal efficiency, emission concentration, operation resistance, service life and other indicators of the dust removal equipment are affected by the bag material.


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Attention should be paid to the use of dust collector bag
1. Gas temperature
The temperature of dusty gas is an important factor in the selection of filter bag. Generally speaking, the dust containing gas less than 130 ℃ is called normal temperature gas, and the dust containing gas greater than 130 ℃ is called high temperature gas. Therefore, filter bags can be divided into two categories: normal temperature filter bags below 130 ℃ and high temperature filter bags higher than 130 ℃. Therefore, the selection of filter bag should be based on the flue gas temperature. In practical work, some people call 130-200 ℃ gas as medium temperature gas, but the filter bag mostly chooses high temperature type.
Selection of bag filter
2. Gas humidity
According to the relative humidity, the dusty gas can be divided into three states: dry gas when the relative humidity is below 30%, the general state when the relative humidity is between 30% and 80%, and the high humidity gas when the relative humidity of the gas is above 80%. For high humidity gas, when it is in a high temperature state, especially when the dust gas contains so Ψ, condensation will occur when the gas is cooled. This will not only make the surface of the filter bag scaling, blocking, but also corrosion of structural materials, so special attention should be paid.
3. Chemical properties of gases
In all kinds of furnace flue gas and chemical waste gas, there are many kinds of chemical components, such as acid, alkali, oxidant, organic solvent and so on. Therefore, in the selection of filter bag, according to the chemical composition of dust gas, grasp the main factors, comprehensive consideration. In addition, the selection of filter bags should also consider the nature of dust and the way of dust removal, through their mutual relationship and their respective characteristics to match and select, to ensure the selection of appropriate filter bags, to ensure the quality of dust removal.
More information about bag filter is available in the second ring road. After decades of technical precipitation and continuous innovation, Jiangsu Erhuan Environmental Protection Technology Co., Ltd. has an elite team of R & D, design and production. The company has successfully developed slant insert filter cartridge dust collector and vertical ultra-high efficiency filter cartridge dust remover by introducing the fine production process of European and American dust collectors.

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