Baghouse filter calculation area

Many kinds of bag filter, so its selection calculation is particularly important, improper selection, such as the equipment is too large, it will cause unnecessary traffic charges; equipment election will affect the production of small, difficult to meet environmental requirements. Generally a lot of calculation before computing should know the basic parameters of the flue gas, followed by a brief introduction of filter area is how to determine: 1), the total filtration area, based on the total gas and dust through the first set of filtration rate, calculated as the total filter area: Evaluate the total filter area, we can determine the overall size and dimensions of the bag filter. 2), a single bag area, a single circular area of the bag: 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 10 m, diameter 0.292 m, a nominal filter area of 0.0292 × 10 = 925 m; if no deduction filtration area of 0.75 m, 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. 3), the number of bag: obtaining a total filter area and the area of a single dust bag, the bag can be calculated number. If the number of bags each bag chamber is determined, whereby it can also calculate the number of the rooms throughout the precipitator. Although the press need to determine the number of cells in the precipitator design or selection, but the site layout and maintenance convenience, often room to room with more than six in addition to sitting on the set to double. The chamber 5 is less than the dust of the chambers as a single row.