Determine dust filter area (1) The total filtration area according to the total gas and dust through the first set of filtration rate, calculated as the total filtration area: evaluate the total filter area, we can determine the overall size and dimensions of the bag filter. (2) A single area of a single circular bag area In the process the bag, the bag due to be fixed in the short tube or plate flowers, some even hanging up the cap fixed on the bag, so bag sewing ends need to double or even multi-layered sewing: double seam this part of the system due to increased resistance no longer filter role, but also some intermediate bag fixing ring, this part does not filter effect. In large and medium-sized anti-hair dust collector, bag length 10m, diameter 0.292m, a nominal filter area of 0.0292 × 10 = 925m; if no deduction filtration area of 0.75m, the net filtration area from 8.25-0.75 = 7.5 m. Thus, useless bag filter area accounted for 5% to 10% of the area of the bag, so, in large, medium filter specifications shall specify the size of the net filter area. However, in the conventional dust samples, which means that most of the filtration area nominal filter area in the design and selection should pay attention to.
