Transverse bipolar electric-bag composite dust collector

Abstract

The invention relates to a transverse bipolar electric-bag composite dust collector. According to the technical scheme adopted by the invention, a gas inlet box (1) is connected with an inlet end of a dust collector body (17); a gas outlet box (15) is connected with an outlet end of the dust collector body (17); an anode corona wire (19) and an anode tube (23) are fixedly arranged on an anode framework (3) alternatively at equal distance; and a cathode tube (20) and a cathode corona wire (22) are fixedly arranged on a cathode framework (5) alternatively at equal distance. The anode framework (3) and the cathode framework (5) are alternatively arranged at equal distance in a direction perpendicular to a gas inlet direction. In the inlet flow direction, the cathode corona wire is opposite to the anode tube (23), and the anode corona wire (19) is opposite to the cathode tube (20). Positive ions are generated between the anode corona wire (19) and the cathode tube (20), and negative ions are generated between the cathode corona wire (22) and the anode tube (23). The transverse bipolar electric-bag composite dust collector is beneficial for promoting dust cleaning efficiency of the electric-bag composite dust collector, strengthening electrostatic coagulation of charged dust and improving dust removal efficiency.

Description

technical field [0001] The invention belongs to a bag type dust collector, in particular to a transverse bipolar electric bag composite dust collector. Background technique [0002] Electrostatic bag composite dust removal technology combines the advantages of electrostatic precipitator and bag filter, and can efficiently remove fine particles. It is one of the important development directions of smoke and dust control in my country. [0003] At present, the electrostatic bag composite dust removal technology mainly includes: the electrostatic excitation bag dust collector (ESFF) developed by the Southern Research Institute of the United States, the compact hybrid dust collector (COHPAC) developed by the American Electric Power Research Association, and the energy and environmental research center of the University of North Dakota in the United States. Advanced Hybrid Precipitator (AHPC) (Yin Xiaoping, Xu Ping'an. The development and status quo of foreign electric bag hybrid...

AI Technical Summary

Problems solved by technology

[0004] At present, the technical research of electric bag composite dust removal is devoted to improving the synergistic effect of electrostatic force on fiber filtration, but under the existing technical conditions, the three electrostatic enhancement methods of dust charging, fiber charging and external electric field force often cannot be considered at the same time

There are also problems such as the continuous accumulation of charged dust on the surface of the filter bag unit to generate back corona and burn the filter bag unit, and the difficulty of cleaning the charged dust on the filter material.

At the same time, the electrostatic coagulation effect of charged dust is not applied in the ordinary electric bag composite dust removal technology, which restricts the further improvement of the electric bag composite dust removal efficiency

[0005] Wang Cong, Xiang Xiaodong, Huang Sanming, etc. disclosed the patented technology of "a reverse electric field electrostatically enhanced bag filter" (ZL201310065516. The conductive function of the net eliminates the back corona to a certain extent, and solves the disadvantages of burning bags and difficult ash removal, but the electrostatic coagulation effect of charged dust has no application

[0006] To sum up, the existing electrostatic bag composite dust removal technology has problems such as strong electrostatic adhesion between charged dust and the surface of the filter bag, which makes it difficult to clean the dust, the accumulation of charges leads to anti-corona burning of the bag, and there is no electrostatic coagulation and synergistic effect of dust.

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