However, as early as the 1980s in China, the measured data specifically introduced the relationship between the amount of filter dust, the filter speed and the filtration resistance of cement dust. When the amount of filter dust is constant, the speed of the filter air is doubled, the resistance is increased by 25% to 50%, and even the speed of the filter air is increased by 2 times, the increase in resistance is less than 80%, the lower the speed of the filter wind, the lower the percentage of the increase in resistance; On the other hand, when the amount of dust filtration is constant and the filtration wind speed is doubled, the resistance is reduced by less than 30%. It can be seen that the increase or decrease in the speed of the filtered wind is not directly proportional to the increase or decrease in the filtered resistance. It is not appropriate to only reduce the speed of the filtered air to reduce the filtration resistance and therefore the operating cost.

Smoke purifier manufacturers briefly describe the relationship between filtration speed and dust removal performance. The dust cleaning performance of dust has a great relationship with the properties of dust, namely viscosity/particle size and bulk density. Dust has high viscosity, small particle size, small apparent density and is difficult to remove dust. The filter wind speed should be low and vice versa. Some have experience in China.

For all fine and smooth dust in talc powder, under all working conditions, the resistance of the filter bag can be restored to its original value by discharging only one dust, and the secondary dust is almost completely blown away. Only 25% to 30% of the delivery is required; For ultrafine iron oxide dust, it is usually necessary to backwash and clean several times to effectively reduce the resistance of the filter bag, and it is difficult to restore its original value. The proportion of throughput can reach 50% to 70%. This shows that for a particular bag dust collector, the dust removal performance depends mainly on the properties of the dust and the gas containing the dust, rather than the total dust, and the lower filter wind speed. Can improve the dust removal capacity.

Cartridge welding fume purifiers and other bag dust collectors differ in their field of use and in the nature of fume treatment. Therefore, manufacturers buying as buyers should carefully consider when purchasing welding soot purifiers. First, think carefully about what to buy from the end use of the machine, what type of soot particles and the amount of soot. Therefore, as a decision maker, it is your responsibility to understand in detail the performance of the device, the range of use, the functions used, the therapeutic effects, etc. This responsibility is not trivial. Once the choice is wrong, the treatment effect of smoke and dust as well as after-sales service will bring you trouble and unnecessary problems, which will seriously affect your production efficiency and health status. Staff and environmental inspection. Therefore, several factors must be weighed in the decision-making process.