Cyclone-electrostatic-coupled wet dust removal device

Abstract

The invention relates to a cyclone-electrostatic-coupled wet dust removal device, which comprises a gas inlet section, a straight cylinder section, a conical contraction section, a gas outlet section,a cathode wire top insulation supporting section, an insulation shielding sleeve, an outlet gas collecting cylinder, a washing water ring pipe, a cathode wire and a cathode wire bottom end insulationsupporting frame. The top face of the gas inlet section is flush with the top face of the straight cylinder section. The side face of the gas inlet section is circumferentially tangent to the side face of the straight cylinder section. The bottom of the straight cylinder section communicates with the conical contraction section. The beneficial effects of the device are that: according to the device, through combination of the gas inlet section, the straight cylinder section, the conical contraction section, the gas outlet section and the cathode wire, meanwhile, by utilizing centrifugal forcegenerated by gas rotational flow and electrostatic force generated by an electrostatic field, the centrifugal force and the electrostatic force are coupled to act on the particles in the gas, and removal force larger than that of a single cyclone dust collector and an electrostatic dust collector can be generated, so that the particles with the particle size smaller than 10 microns can be removed, and high dust removal efficiency is achieved for the particles with the particle size smaller than 2.5 microns.

Description

technical field [0001] The invention relates to a dust removal device, in particular to a cyclone electrostatic coupling wet dust removal device. Background technique [0002] With the continuous advancement of the national ecological civilization construction, my country has launched a series of measures for the control of particulate matter pollution, and has achieved remarkable results in the fields of coal combustion pollution and mobile source pollution control. However, at present, many regions and cities in my country still face the urgent need to solve PM2.5 pollution, and the improvement of air quality still faces great challenges. [0003] Cyclone dust collectors have a long history of application in the field of flue gas dust removal due to their simple structure, small size, and high overall dust removal efficiency. However, for particles with a particle size below 10um, the classification and dust removal efficiency is very low, so it is generally used in the p...

AI Technical Summary

Problems solved by technology

However, for particles with a particle size below 10um, the classification and dust removal efficiency is very low, so it is generally used in the pretreatment of flue gas dust removal

Wet electrostatic precipitators have high dust removal efficiency for particles with a particle size below 2.5um. However, in order to ensure that the flue gas has sufficient residence time, wet electrostatic precipitators are often bulky, occupy a lot of land, and have high investment costs.

In practical applications, multiple dust removal devices are often used in series to achieve higher dust removal efficiency, thus further increasing the dust removal device footprint and equipment costs

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