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What are the specifications of the dust collection filter bag?

2022-12-14 Page view : 10 views

What are the specifications of the dust collection filter bag? The commonly used specifications are 120~160mm in diameter and 1~6m in length. Such as round cloth bag Φ 125*1000,、 Φ 125*1500、 Φ 125*2000、 Φ 125 * 2500, etc, Φ 133*1000、 Φ 133*1500、 Φ 133*2000、 Φ 133 * 2500, etc.

Many factors need to be considered to determine the specifications of filter bags. First, the length of the dust collection filter bag. Under the same flue gas treatment volume, filtering speed and dust removal bag diameter, increasing the length of the dust removal bag can reduce the number of bags, thus reducing the floor area, reducing the electromagnetic valve, pulse valve, blowing pipe and other components of the ash removal system, saving investment and shortening the ash removal cycle. On the other hand, if the filter bag is lengthened, the dust remover box will also be extended upward, and the strength of its components will be increased, which will increase the equipment cost; From the point of view of pulse blowing, in order to effectively clean the dust in the full length of the dust removal bag, sufficient energy must be applied at the end of the blowing.

The longer the filter bag is, the more energy is required, and the easier the filter bag blowing end is to be damaged; The dust collection filter bag is lengthened, the weight supported by the filter material is increased, and the tension is also increased. If the tension on the top of the filter bag is too large, the seam may be broken; During online dust removal, the longer the filter bag is, the more likely the dust separated from the bag will return to the bag; If the dust is removed offline, the longer the dust collection filter bag is, the longer the pause time after the dust removal will be, and the slower the recovery of the dust removal chamber; In addition, if the filter bag is too long, installation, maintenance and inspection will be inconvenient; If the dust remover is installed indoors, the length of the dust collection filter bag is also limited by the building height.

1. The number of filter bags is reduced, and the floor area of the equipment is small: when the air volume, filtering wind speed and bag diameter are the same, the filter area of a single dust removal bag will be increased by adding the length of the dust removal bag, and then the number of filter bags and the floor area can be reduced:.

2. If the number of dust collection filter bags is reduced, the electromagnetic valve, pulse valve, blowing pipe and other components of the ash cleaning system will also be reduced, saving investment, and shortening the ash cleaning cycle of the dust remover.

3. If the length of the filter bag of the normal temperature filter bag dust remover is too long, the production cost will be increased: the height of the industrial dust remover box will be increased, and the upward extension will increase the strength demand of the components, so the equipment production cost will be increased.

4. Poor dust removal effect: when the industrial dust remover is used for online dust removal, the longer the filter bag, the greater the possibility that the dust ejected from the dust collection filter bag will be re absorbed. Assuming that the longer the filter bag is used for offline dust removal, the greater the energy required, and the more easily the filter bag blowing end will be damaged; The dust collection filter bag is lengthened, the weight supported by the filter material is increased, and the tension is also increased. If the tension at the top of the filter bag is too large, the seam may be broken; During online dust removal, the longer the filter bag is, the more likely the dust separated from the filter bag will return to the filter bag.