4.The conclusion
The bag filter is a kind of high-efficiency dust collector, which uses organic fiber or inorganic fiber filter bag to separate solid dust in dusty gas under the action of filtration, impact, interception, diffusion and electrostatic attraction of the filter bag. Efficient dust removal equipment can capture dust above 0.3μm, and the dust removal efficiency can reach 95%~99%. The dust removal system of the asphalt concrete mixing equipment passes the drying drum and the entire agitated dust-containing gas into the inertia dust collector through the flue to perform the first-stage dust removal, and then the remaining dust-containing gas enters the bag filter for secondary dust removal, and the purified gas Discharge through the chimney. The bag type dust collector adopts atmospheric backflushing, has good cleaning effect, emission concentration <25mg/Nm3; Ringermann blackness is less than level 1, and can be different according to different fuels, aggregates and mineral powders used by customers. Water content, NOMEX needle felt filter material treated in different ways to ensure normal use under different types of working conditions, dust collector is also equipped with high and low temperature protection device to extend the life of filter bag, filter The life of the bag is generally more than two years.