Combined type polarity structure of wet type electric dust collector

Abstract

The invention provides a combined type polarity structure of a wet type electric dust collector. The combined type polarity structure comprises a plurality of anode plates and a plurality of cathode lines which are arranged at intervals, wherein the plurality of anode plates are all identical standard 818 anode plates; or the plurality of anode plates comprises standard 818 anode plates and non-standard anode plates; the cathode lines are barb lines; barbs on two sides of each cathode line are respectively perpendicular to the anode plates on same sides; the barbs on two sides of each cathode line are arranged in the length direction of each cathode line in a staggered manner; the sharp end of each barb is opposite to the falling direction of washing water; the cathode lines can be arranged parallel to or perpendicular to fume direction. The combined type polarity structure can be in efficient synergism with a desulfurizing tower, so that fume can be uniformly purified, the phenomenon of fume short circuit is effectively avoided, and the dust collection efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of air pollution control, and is mainly used for flue gas dust removal (including PM2.5), desulfurization and mercury removal smoke (waste) in the fields of coal-fired thermal power, coal-fired boilers, ironmaking sintering machines, nonferrous metallurgy and chemical building materials The field of gas purification technology, especially the field of equipment and technology for wet electrostatic precipitator dust removal. Background technique [0002] my country's traditional limestone wet flue gas desulfurization has been developed rapidly on a large scale in China for many years. After adopting the new standard, the emission limits of sulfur oxides and fine particles in power plants have been reduced. In order to achieve the new requirements of high desulfurization efficiency and high dust removal rate, many domestic enterprises have begun to adopt the joint application of desulfurization and wet electro...

AI Technical Summary

Problems solved by technology

Generally, after the anode plate inside the vertical flow wet electrostatic precipitator is arranged, the flue gas close to the tower wall will still have gas leakage and short circuit, resulting in poor dust removal effect of the flue gas

At the same time, the flue gas flow rate in the desulfurization tower is generally high, and the cathode line that is too long will swing and cause the discharge to be unstable.

Moreover, the ambient humidity in the desulfurization tower is high, and the unreasonable structure of the pole line of the top-mounted wet electrostatic precipitator will cause water to hang on the discharge end of the pole line, resulting in unstable operation of the wet electrostatic precipitator

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