Combined radial flow electrostatic precipitator

Abstract

The invention discloses a combined type radial current electric dust collector. According to the dust collector, a radial current type electric dust collecting power discharge net is arranged behind a dust collecting electrode inside a dust collecting airway; an annular dust collecting chain row is arranged behind the radial current type electric dust collecting power discharge net; the front annular part of the dust collecting chain row is parallel to the surface of the radial current type electric dust collecting power discharge net; a left guide rail is arranged on the left side of the dust collecting chain row; the side part of the left end of the dust collecting chain row is guided and positioned through the left guide rail; a right guide rail is arranged on the right side of the dust collecting chain row; the side part of the right end of the dust collecting chain row is guided and positioned through a right guide rail; the lower part of the dust collecting chain row is positioned inside a dust cleaning chamber; a sealing partitioning plate is arranged between the dust cleaning chamber and the dust collecting airway; the dust collecting chain row penetrates through the sealing partitioning plate downwards and enters the dust cleaning chamber; a dust blowing tube is arranged along the left and right direction near the dust collecting chain row inside the dust cleaning chamber. The invention aims at providing the combined type radial current electric dust collector which is large in gas treatment capability in unit time, outstanding in effect in collecting fine dust including PM2.5, very stable in dust collection performance, low in operation cost and long in service life.

Description

technical field [0001] The invention relates to a combined radial flow electrostatic precipitator. Background technique [0002] PM2.5 refers to particulate matter with a diameter less than or equal to 2.5 microns in the atmosphere, also known as particulate matter that can enter the lungs. Although PM2.5 is only a small component of the earth's atmospheric composition, it has an important impact on air quality and visibility. PM2.5 has a small particle size, is rich in a large amount of toxic and harmful substances, and has a long residence time in the atmosphere and a long transportation distance, so it has a greater impact on human health and the quality of the atmospheric environment. Meteorologists and medical experts believe that hazy weather caused by fine particles is even more harmful to human health than sandstorms. Particles with a particle size of 10 microns or more will be kept out of the human nose; particles with a particle size between 2.5 microns and 10 mi...

AI Technical Summary

Problems solved by technology

[0003] In the existing electrostatic precipitator, due to the large distance between the positive and negative plates, the particles with a diameter of less than or equal to 2.5 microns in the flue gas of the power plant have not had time to move in the air flow and adhere to the positive and negative plates. It is carried by the air flow through the positive and negative plates. If the speed of the air flow passing through the electrode plates is reduced, the air flow that the electrostatic precipitator can handle will be greatly reduced, and it is difficult to meet the processing requirements required for production.

Therefore, the existing electrostatic precipitator cannot meet the design requirements of removing very fine dust in the large flow gas. Particles that can enter the lungs

When traditional electrostatic precipitators are used to remove dust from power plant boilers, 3-5 groups of electrostatic precipitators are usually used in series. It has the characteristics of large gas volume per unit time and good effect in removing large particles of dust. As the country's environmental protection standards for flue gas discharged from power plants continue to improve, even if the technical solution of using 3-5 sets of electrostatic precipitators in series is adopted, it is difficult to effectively remove the fine dust such as PM2.5 that exists in large quantities in the exhausted flue gas , due to the inability to efficiently remove PM2.5, it is difficult for a large number of power generation boilers in my country to meet the new environmental protection standards for exhaust gas from power plant boilers

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