PM2.5 (Particulate Matter 2.5) electrostatic precipitator with box-type dedusting area

Abstract

The invention discloses a PM2.5 (Particulate Matter 2.5) electrostatic precipitator with a box-type dedusting area. After being arranged in a common electrical dedusting system, the PM2.5 electrostatic precipitator with the box-type dedusting area comprises a coagulation area and the box-type dedusting area which are successively communicated, wherein the coagulation area is conducted with the common electrical dedusting system and is provided with a plurality of dust collection plates at equal intervals to form a plurality of particulate channels which have the consistent direction with particulates; the same particulate channel is provided with discharging electrodes which are vertical to the particulate direction and have the same polarity; the polarities of the discharging electrodes in adjacent particulate channels are opposite, the particulates passing through the area can be provided with different electric charges, and the particulates are coagulated to form big-particle particulate; the box-type dedusting area is communicated with the coagulation area and is provided with a box-type dust collecting films at equal intervals; the bottom of each box-type dust collecting film is hung to form a big-particle particulate channel through which the big-particle particulate can pass; the box-type dust collecting film is provided with a negative electric charge by a connected power supply; the film body structure of each surface of the box-type dust collecting film is consistent and is formed by respectively arranging a polypropylene film on the upper surface and lower surface of a conducting film; and static dust removal is finished in the area. The PM2.5 electrostatic precipitator has the advantages of excellent effect and low cost.

Description

technical field [0001] The invention relates to dust removal technology in the thermal power industry, in particular to a PM2.5 electrostatic precipitator with a box-type dust removal area. Background technique [0002] PM2.5 refers to particulate matter with a diameter less than or equal to 2.5 μm in the atmosphere, also known as particulate matter that can enter the lungs. Although it is only a small component in the earth's atmospheric composition, it has an important impact on air quality and visibility. Compared with coarser atmospheric particles, 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 atmospheric environment quality . [0003] From 2000 to 2007, my country's annual industrial dust emissions exceeded 8 million tons (about 4 million tons in the thermal power industry), including about 4 m...

AI Technical Summary

Problems solved by technology

[0028] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a PM2.5 electrostatic precipitator with a box-type dust removal area, which can not only achieve the purpose of capturing fine particles below PM2.5, but also achieve long-term, The effect of low maintenance costs, thereby solving the problem of large fine dust emissions in the thermal power industry and threatening the environment

Images