Multi-stage electrostatic precipitation equipment based on particle size

Abstract

Multi-stage electrostatic precipitation equipment based on the particle size is formed by sequentially connecting a pre-ionization device, a mass separator, a large-mass particle precipitator and a small-mass particle precipitator, wherein the pre-ionization device is provided with a metal plate A which is provided with rib structures at equal intervals; a plate body B right facing the metal plate A is formed by bonding an insulating dielectric-slab with a metal plate B; the two metal plates are connected with the anode and the cathode of an alternating current high-voltage power source correspondingly; a set of symmetrical plate bodies of the mass separator are made of conductive metal and connected with the anode and the cathode of a low-voltage direct current power source correspondingly; a separating plate is arranged at the tail end inside the mass separator; and two air outlets are formed in the tail end of the mass separator, are located above and below the separating plate and communicate with the large-mass particle precipitator and the small-mass particle precipitator correspondingly. The multi-stage electrostatic precipitation equipment based on the particle size has the advantages of being exquisite in structure, high in dust removal efficiency and the like.

Description

technical field [0001] The invention relates to the field of industrial dust removal, in particular to a high-efficiency electrostatic dust removal device based on a particle-scale multi-stage dust removal method. Background technique [0002] Dust in the air mainly comes from natural processes and human activities. The former includes all kinds of dust caused by volcanic eruptions, fires, sandstorms, etc., but the dust produced by the above natural processes can often be removed by the self-purification ability of the atmosphere, so no fundamental harm to human development has been found. According to the National Environmental Statistical Bulletin (2014), the emission of industrial smoke (powder) and dust in the national waste gas is 14.561 million tons (17.408 million tons in total), and the emission from industrial sources accounts for the vast majority. At the same time, my country's energy structure dominated by coal consumption determines that my country's power indu...

AI Technical Summary

Problems solved by technology

[0005] The existing flue gas electrostatic precipitator is mainly to increase the dust removal capacity by increasing the discharge level, and because the dust collector has a selective characteristic, the effect of absorbing particles with a particle size of 0.1-1 μm is not good, and the method of increasing the number of dust collectors is relatively low. High and insignificant

At the same time, existing dust collectors have the problem that the dust removal voltage is difficult to choose. When the voltage is too high, the large-mass dust particle layer is easy to discharge; if the voltage is too small, the small-mass dust particles tend to lose electrons and cannot be collected.

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