Device and method for removing fine particles by sound wave combined with electric field

Abstract

The invention discloses a device and a method for removing fine particles by the action of sound wave combined with electric field. A discharge electrode is set at the center of the main body of the agglomeration removal chamber, and the discharge electrode is fixed with a discharge electrode fixing device. The negative DC power supply is connected to the discharge electrode through a wire through the discharge electrode fixing device. The driving sound source, the compression driving sound source is connected to the power amplifier and the signal generator in sequence, the bottom of the main body of the reunion removal chamber is equipped with sound-absorbing sponge, the upper part of the main body of the reunion removal chamber is equipped with a flue gas inlet, and the main body of the reunion removal chamber The lower part is provided with a flue gas outlet, and the flue gas outlet is connected to the induced draft fan, and the outer wall of the main body of the agglomeration removal chamber and the negative DC power supply are respectively connected to the grounding device. The invention adopts the action of sound wave combined with electric field to process the fine particles in the dust-laden airflow such as exhaust smoke of coal-fired boilers, and through the mutual coupling and promoting effect of the sound field and the electric field, the fine particles are efficiently agglomerated and removed, thereby controlling the emission of PM2.5.

Description

technical field [0001] The invention relates to the technical field of pollutant control equipment manufacturing, in particular to a device and method for removing fine particles through the action of sound waves combined with electric fields. Background technique [0002] The atmosphere is the most basic environmental factor for human beings to survive, and my country's rapid economic development and huge energy consumption have resulted in increasingly serious air pollution, especially fine particulate matter (PM2.5) pollution. Due to the small particle size and relatively large specific surface area of ​​fine particles, which are rich in a large amount of toxic and harmful substances, their direct entry into the lungs will seriously harm the human respiratory system; at the same time, due to the long residence time of fine particles in the atmosphere and the transportation distance Its special extinction effect can cause a wide range of haze weather, reduce environmental ...

AI Technical Summary

Problems solved by technology

Although the dust removal efficiency of high-efficiency electrostatic precipitators for total suspended particles is as high as 99.7%, the removal efficiency for fine particles is as low as 90% or even lower

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