1, First understand the flue gas temperature to be addressed: bag house dust bag as a core member. The selected filter can not adapt to the flue gas temperature is very important. Such as filter normal temperature flue gas temperature exceeds too much, due to high temperature filter material cost increase caused by higher investment in equipment. As dust bag below the normal operating temperature of the flue gas temperature, it may cause dust bag burned, causing great economic losses. So how do you choose by the flue gas temperature dust bag it? Dust bag divided by temperature: room temperature, filter the following 130 ℃, the temperature of the filter 130 ~ 180 ℃, high temperature filter 180 ~ 280 ℃. Know the flue gas temperature and the temperature of the filter is not able to filter out the election. 2, The second step of the flue gas composition to know: This includes dust content, specific gravity, particle size, can be addictive, the flue gas moisture content and other parameters. By understanding these decisions bag house cleaning method, dust bag post-processing method and filtration velocity. A large amount of dust, dust and more sticky and light conditions generally chosen pulse jet bag filter, filtration velocity control in most of 1.2m / min or more, a few conditions 1m / min or less. Other circumstances may be, you can use the high-pressure cleaning type dust collector and cyclone. The media treated the way to have a microporous film, water and oil proof, anti-static (accession weaving conductive yarn) treatment, as the case may be. 3. The third step is to understand the amount of flue gas to be processed: Processing amount of wind bag house is usually coupled with system leakage factor (10% to 15%) for the amount of wind conditions. Know bag house air volume, filtration velocity can pass the formula: S = Q / 60V gave a total filtration area. Where S: total filtration area Q: System processing air volume V: filtration velocity 4, Know the above points, you are not a certain number of units of the bag house mind to order it. As to the form of the structure and layout of dust, dust bag specifications, quantities, pulse valve, the number of manufacturers are dust engineering division type things, you simply press the dust performance of your income above the required parameters and acceptance on it.