For the treatment of gases with high dust concentration, cyclone dust collectors or gravity dust removal equipment can be installed as pre-dusting, but this will increase the resistance of the system and increase the power consumption. Therefore, when dust or finished materials do not need to be classified, most of them use bag dust removal equipment directly.
Not all baghouse dust removal equipment can handle gases with high dust concentrations. Only bag-type dust removal equipment with a wide filter bag spacing and a continuous cleaning device in the form of a filter outside the bag is suitable for treating gases with high dust concentration.
When handling high dust content, the dust should be placed directly into the ash bucket or added to the baffle as much as possible to reduce the amount of dust attached to the filter bag. To prevent friction damage of the filter cloth, the high-speed moving dust should not be directly impacted on the filter cloth.
It is also possible to use a part of the middle portion of the tank as a pre-dust remover, and also serve as a power sedimentation chamber for the dust and a diversion chamber for the inlet gas.
The bag type dust collector for collecting dust by the pneumatic conveying device has a large cylindrical volume because the air volume is small, the dust concentration is high, and the box body is required to withstand pressure. Conditional companies can replace the bag filter with a plastic plate filter.
The cylindrical box inlet is tangentially oriented to provide separation, and many rotary blowback bag filters are of this type. Sometimes the ash bucket is in the form of a cyclone. The bag filter of the pneumatic conveying system, because of the large amount of powder, the ash bucket volume and the diameter of the ash discharge port should be designed to be larger, and the capacity of the dust discharge device should also have sufficient room to avoid retaining powder in the ash bucket. material.