Choosing a dust bag and a dust collector generally go through the following four steps and hopefully you can choose the one that suits you.
1. First 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 that the selected filter material can not adapt to the flue gas temperature. If the normal use temperature of the filter exceeds the temperature of the flue gas, the investment in the device is increased due to the high cost of the high-temperature filter. If the normal use temperature of the filter material is lower than the temperature of the flue gas, it may cause the bag to burn and cause great economic losses. So how to select the filter according to the temperature of the flue gas? Divided by the use of temperature filter material: room temperature filter material below 130 °C, medium temperature filter material 130 ~ 180 °C, high temperature filter material 180 ~ 280 °C. It is known that the temperature of the flue gas and the temperature of the filter media are selected for the filter media.
2, the second step to 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 knowing these decisions, the dust removal method of the dust remover, the post-processing method of the filter material, and the filtration wind speed are discussed. In general, pulse bag type dust collectors are used for dusty and dusty conditions that are relatively viscous and light. The majority of filtration speeds are controlled at 1.2m/min or more and a few working conditions are less than 1m/min. Other conditions may depend on the use of high pressure backflush dust collector and cyclone dust collector. The post-treatment methods of filter media are generally microporous film, water repellent and oil repellent, anti-static (weave conductive yarn when weaving), easy to clear, etc., depending on the situation.
3. The third step is to understand the amount of flue gas that needs to be processed: The air flow from the dust collector is usually the working air volume plus the system air leakage coefficient (10%~15%). Knowing the precipitator’s processing air flow rate and filtering air velocity can pass the formula: S = Q/60V to get the total filter area. Where S: total filtering area Q: system processing air flow V: filtering air speed
4, knowing the above points, you are not on the duster to order a certain number of hearts. As for the structure of the dust collector, the size and quantity of the filter bag, the form of the pulse valve, and the number of dust filter manufacturers are engineers, you only need to check the parameters you received above and the required dust removal effect. Yes.
