Overall purification method for harmful ingredients in flue gas and purification apparatus thereof

Abstract

The invention relates to a method and a device for purifying harmful components in flue gas comprehensively. The method comprises the following steps: (1) adopting a dusting removal desulphurization and denitration device to remove flue dust, sulfur dioxide and nitrogen oxide in the flue gas; (2) adopting a wet scrubber to remove the residual flue dust, colloid and other washable and removable components in the flue gas; and (3) adopting an adsorber to adsorb the residual harmful components. The device comprises the dusting removal desulphurization and denitration device, the wet scrubber and the adsorber which are connected sequentially, wherein the dusting removal device and the desulphurization and denitration device can be integrated or independent of each other; the wet scrubber adopts a spray tower provided with a sieve plate and a froth bed; the adsorber adopts a box type plugboard type structure; and various adsorbing materials are made into a standard plugboard which is plugged in a box body forming a flue gas passage. The device has a simple process and convenient operation, and can remove the harmful components in the flue gas comprehensively and reduce the harm to human bodies and the ecological environment caused by the flue gas.

Description

technical field [0001] The invention relates to a device for controlling the pollution of harmful components in smoke, in particular to a comprehensive purification device for harmful components in smoke. Background technique [0002] In addition to different concentrations of dust, sulfur oxides, and nitrogen oxides, the flue gas emitted from industrial processes also contains traces of harmful components such as heavy metals and organic pollutants. Most of them are in the form of steam, single-phase fine particles, and adsorption exist in other forms. The current flue gas purification system and its devices have a low removal efficiency for the above-mentioned trace harmful components, and once these components are discharged into the atmosphere, they exist in a single-phase state or adsorbed on the surface of fine particles, which is harmful to human body and ecology. Great harm to the environment. Contents of the invention [0003] In order to overcome the above-ment...

AI Technical Summary

Problems solved by technology

The current flue gas purification system and its devices have a low removal efficiency for the above-mentioned trace harmful components, and once these components are discharged into the atmosphere, they exist in a single-phase state or adsorbed on the surface of fine particles, which is harmful to human body and ecology. Great harm to the environment

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