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Jinan Qiaotai Environmental Protection Equipment Co., Ltd.

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    Phone: 0531-85824254
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    Contact: Feng Shengwen Website: ydftjl.cn
    Address: Tianqiao District, Jinan City, Shandong Province
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    How to choose a bag filter


    Bag dust collectors have a very good effect on environmental protection and production environment protection, and it is of great significance to protect producers.

      Ventilation and dust removal is an important part of production in many factories that are prone to smoke and dust. Bag dust collectors have a very good effect on environmental protection and production, and it is of great significance to protect producers. Bag type dust collector is an efficient dust removal equipment, which not only has a good filtering effect on dust, but also can handle some toxic gases if equipped with corresponding equipment. So what do we need to pay attention to when choosing a bag filter?

      1. Handling air volume, the choice of handling air volume is the most important point in selecting a dust collector. Many users often use many small air volume dust collectors in parallel when selecting a dust collector, and think that this saves costs. In fact, this idea is wrong. This will not save costs, and its damage rate will be higher than a single large air volume dust collector, but it will cause users to invest more manpower and material resources. The choice of air volume must be appropriate. The processing air volume is too small, the workload is large, the work result is unsatisfactory and the life of the dust collector is shortened. If the processing air volume is too large, it will cause efficiency overflow and waste.

      2. The operating pressure of the bag filter is based on the static pressure value of the device before and after the dust collector and the fan and its installation position, and it is also the design pressure value of the bag filter. The dust concentration at the inlet is the dust concentration at the inlet, which is determined by the process of the dust point. When designing or selecting a bag filter, it is another important factor behind the air volume. Expressed in g / m3 or g / Nm3.

      There are four steps to selecting the dust bag and dust collector:

      1, first understand the composition of the flue gas: this includes the dust content, specific gravity, particle size, whether there is viscosity, the moisture content of the flue gas and other parameters. By understanding these determine the dust removal method of the dust collector, the post-processing method of the filter material And filtering wind speed. In general, a large amount of dust, dust is more viscous and light conditions, the pulse bag type dust collector is used, most of the filtering wind speed is controlled above 1.2m / min, a few working conditions are below 1m / min. It is possible to use high-pressure back-blow type dust collector and cyclone dust collector. The post-treatment methods of filter materials are generally microporous film, water and oil repellent, antistatic (conductive yarn is added when weaving), easy cleaning, etc. set

      2, The second is to understand the temperature of the flue gas to be treated: the filter bag is the core component of the bag filter. It is very important whether the selected filter material can adapt to the temperature of the flue gas. For example, the normal use temperature of the filter material exceeds the temperature of the flue gas. Many, due to the high cost of high-temperature filter media, equipment investment increases. If the normal use temperature of the filter media is lower than the temperature of the flue gas, the bag may be burned, causing great economic losses. So how to choose according to the temperature of the flue gas Filter media? Filter media is divided according to the use temperature: normal temperature filter media below 130 ℃, medium temperature filter media 130 ~ 180 ℃, high temperature filter media 180 ~ 280 ℃. I know whether the temperature of the flue gas and the use of the dust bag is the filter media Can be selected.

      3. Knowing the above points, do you have a certain number of dust collectors you want to order? As for the structure and layout of the dust collector, the specifications of the filter bag, the number, the form of the pulse valve, and the number are all dust removal It is only a matter of engineering engineer of the manufacturer, you only need to check and accept the dust removal effect according to the parameters and requirements obtained above.

      4.Understand the amount of flue gas to be processed: The processing air volume of the dust collector is usually the working condition air volume plus the system air leakage coefficient (10% ~ 15%). Knowing the processing air volume of the dust collector, the filtering wind speed can pass the formula: S = Q / 60V gives the total filtering area. Among them S: total filtering area Q: system processing air volume V: filtering wind speed

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    Address: Tianqiao District, Jinan City, Shandong Sales Department: 13503719995 Contact person: Feng Shengwen Telephone: 0531-85824254 Fax: 0531-85806335
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