1.A summary of electricity composite filter bag
Electricity compound bag precipitator is organic combination of the characteristics of the electrostatic dust collection and bag dust removal, dust deposit by level before the electric field, the function and level after charged area filter bag filter dust removal of a highly efficient dust catcher, it give full play to the electric dust collector and dust advantages of bag dust collector, as well as the combination of both to create new performance advantages, make up for the shortcomings of electrostatic precipitator and cloth dust collector. The composite filter with high efficiency, stable, filter bag low resistance, long service life, cover an area of an area small, etc, will be the future control of tiny particles of dust, PM2.5 and more pollutants such as heavy metal mercury together to deal with the main technical means.
2. Structure form
Level before the electric area receives the first electric field of electrostatic precipitators, its dust removal efficiency and the effective area of exponential curve plate, can collect most of the smoke dust, dust collecting efficiency of 70-80%, and flows through the electric area has not been collected under the fine dust of ionization charged. On the one hand, greatly reduce the dust concentration of entering bag dust collector area, on the other hand charged dust in the filter bag after the deposition of powdery cake is of low resistance, thus achieves emission concentration is less than 30 mg/Nm3 requirements of environmental protection, and increase the effectiveness of the overall performance of the filter.
3. Technical characteristics
(1) the dust removal mechanism in electricity compound bag dust collector, the flue gas through electric precipitation area and then slowly into the first grade bag dust removal after area, cloth bag dust control area, the amount of dust catcher is only a quarter of entry. The filter bag dust load is reduced greatly, soot cleaning cycle can be greatly extended; Ionization charged dust after the electric area, dust charged improve the dust on the filter bag filter characteristics, namely, the permeability of filter bag, ash removal performance have been improved greatly. Their reasonable using electrostatic precipitators and bag filter dust removal, and the combination creates new functions, can overcome the disadvantages of the electric and bag dust removal. According to the present experimental study and industrial application in power boiler soot, proved that the technology is a scientific, reliable and advanced technology. Taking advantages of the two kinds of schemes.