Fine particle electric coagulation apparatus

Abstract

The invention relates to a fine particle electric coagulation apparatus, which is characterized in that the fine particle electric coagulation apparatus is positioned at front part of an electric precipitator or a bag-type dust remover, the fine particle electric coagulation apparatus is assembled by combining more than one basic module, each basic module is composed of electric-charge unit and a polymerization unit through connection; the polymerization unit comprises two forms of flow-disturbing polymerization and alternating electric field polymerization, the polymerization unit with flue gas passing through a first stage basic module employing a flow-disturbing polymerization structure, the polymerization unit for a secondary basic module and a third basic module employ an alternating electric field structure; each electric-charge unit is composed of a casing, a corona electrode, an earth electrode, a positive DC high voltage power supply and a negative DC high voltage power supply, a heteropolar coagulation electric field is employed, an end of the earth electrode is designed as a Y-shaped dovetail shape, the adjacent two polar plates form a Venturi structure, flue gas flow-disturbing is generated under Venturi effect, collision and polymerization are carried out on different charged particles, and the fine particle electric coagulation apparatus increases the dedusting efficiency of the electric precipitator and the bag-type dust remover.

Description

technical field [0001] The invention belongs to the technical field of environmental engineering, and in particular relates to an electrocoagulation and coalescence device for fine particles. Background technique [0002] Metallurgy, electric power and other industrial furnaces produce a large amount of flue gas and dust during production and operation. At present, the removal of industrial dust is mainly realized by dust removal equipment such as electrostatic precipitator and bag filter. Although the dust collection efficiency of existing electrostatic precipitators and bag filter can be as high as 99.9%. However, for fine particles, especially submicron particles with a particle size of 0.1-1 μm, the dust removal efficiency is less than 85%. These fine particles seriously pollute the environment and cause smog weather. [0003] Coagulation is a process in which fine particles collide or adhere to each other under the action of external force to form larger particles. ...

AI Technical Summary

Problems solved by technology

However, for fine particles, especially submicron particles with a particle size of 0.1-1 μm, the dust removal efficiency is less than 85%.

However, the existing electrocoagulation device is simple in design, and the fine particles cannot be fully charged in the charging stage, and the particles with different charges cannot fully collide and aggregate in the subsequent polymerization stage, resulting in low coagulation efficiency.

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