Steps to choose the dust collector bag and the dust collector

The choice of dust collector bag and dust collector usually needs to follow the following steps.

Understand the temperature of the flue gas to process: the filter bag is the central component of the bag filter. This is very important if the selected filter material can be adapted to the flue gas temperature. If the normal operating temperature of the filter material exceeds the flue gas temperature too much, the high cost of the high-temperature filter material causes an increase in equipment investment. If the normal operating temperature of the filter material is lower than the flue gas temperature, it can cause the cloth bag to burn and cause large economic losses. So how do you choose the filter material according to the flue gas temperature? Depending on the operating temperature, the filter material is divided into normal temperature filter material below 130 ℃, medium temperature filter material 130 ~ 180 ℃, the high-temperature filter material 180 ~ 280 ℃. You can select whether the flue gas temperature and the filter material temperature are used.

Understand flue gas composition: this includes parameters such as dust content, specific gravity, particle size, viscosity, and moisture content of the flue gas. By understanding this, the method of dust removal from the dust collector, the method of further processing of the filter material, and the wind speed of filtration are determined. Under normal circumstances, the pulse bag filter is used for large volumes of dust, relatively sticky and light working conditions and the filtered wind speed is mainly controlled above 1.2 m/min, and some working conditions are below 1 m/min. Others depend on the situation, you can use the reverse high-pressure dust collector and the cyclonic dust collector. Aftertreatment methods for filter material generally include microporous film, oil, and water repellent, antistatic (thread is added to the weave) and easy to clean, etc., depending on the situation.

Understand the number of flue gases to be processed: the processing air volume of the dust collector is usually the air volume of the working condition plus the air leakage coefficient of the system (10% ~ 15%). Knowing the processing air volume of the dust collector, the filter wind speed can pass the formula: s = q / 60v to obtain the total filtration area. Among them:

S: total filtration area

Q: system processing air volume

V: filter wind speed