The selection of air velocity: The magnitude of the filtration air velocity of a cartridge dust collector depends on the characteristics and concentration of the dust, the characteristics of the gas, the type of filter material, and the method of cleaning the dust. For dust with fine particles, high viscosity, strong abrasiveness and high concentration, as well as gas filtration with high humidity and high temperature, the filtration air velocity of ht oven filter manufacturer should take a small value, and vice versa, take a large value. For filter materials, coated filter materials can be appropriately increased compared to needle-punched felt. Woven fabric has greater resistance, so the filtration air velocity can be taken as a smaller value. Needle-punched felt has a larger opening rate and less resistance, so a larger value can be taken. For ash cleaning methods such as compartmentalized reverse blowing for ash cleaning and mechanical shaking, the intensity is relatively low, and the filtration air velocity is taken as a small value (such as 0.6-1.0m/min). The pulse jet cleaning method has a high intensity and can achieve a large value (such as 1.0-2.0m/min).

The ht oven filter manufacturer selects the filtration air velocity. If it is too high, the filtration area of the filter material required to handle the same air volume of dusty gas is small. That is, the volume and floor space of the dust collector are small, the amount of steel consumed is also small, and the one-time investment is also small. However, the resistance of the dust collector is large, and the power consumption is also large. Therefore, the operating cost is high. The pulse ht oven filter manufacturer is a purification device specially designed for treating a large number of fine particles that are harmful to the human body and suspended in the air during welding, cutting and grinding. It is suitable for single and double workstations. It has high purification efficiency, is lightweight and flexible, and is equipped with a 2-3 meter-long universal suction arm. It is more convenient and flexible to operate at different work locations. Moreover, if the emission mass concentration is high, the service life of the filter cartridge will be short. Conversely, if the filtration air velocity is low, the initial investment is large, but the operating cost is low, the mass of the discharge concentration is small, and the service life of the filter cartridge is long. In recent years, users of ht oven filter manufacturer have higher requirements for dust collectors. They pay attention not only to the concentration of emission quality but also to the service life of the filter cartridges. Not only is it required to achieve an emission mass concentration of 10-50mg/m ³, but also the service life of the filter cartridges should reach 2-4 years. It is necessary to ensure that the dust collector can operate continuously for a long time without replacing the filter cartridges within a major maintenance cycle (2-4 years) of the process equipment. This means that the service life of the filter cartridge will be extended from the previous 1-2 years to 3-4 years. Therefore, the filtration air velocity should not be selected as high but as low, so that the resistance can be reduced, the operating energy consumption can be lowered, the service life of the filter cartridge can be extended accordingly, and the concentration of the emission mass can be reduced. This situation, on the one hand, has also promoted the improvement of the filter material industry, enhancing the quality of filter materials and developing new products. On the other hand, it has prompted the designers and selectors of dust collectors to select high-quality filter materials and lower filtration air velocities based on different circumstances.

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