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A treatment method and treatment device for industrial waste gas containing nitrogen oxides

A technology for industrial waste gas and treatment methods, applied in chemical instruments and methods, separation methods, dispersed particle separation, etc., can solve problems such as high cost, easy scaling and clogging, achieve low operating costs, meet denitration requirements, and economic and environmental benefits considerable effect

Active Publication Date: 2018-10-02
GUANGZHOU GREEN SPLENDID ENVIROMENT SCI & TECH CO LTD
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  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the technical defects of high cost of permanganate denitrification agent and easy scaling and clogging in the prior art, and provide a method and device for using permanganate denitrification agent to treat industrial waste gas containing nitrogen oxides

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  • A treatment method and treatment device for industrial waste gas containing nitrogen oxides

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Embodiment Construction

[0018] Embodiments of the present invention will now be described with reference to the drawings, in which like reference numerals represent like elements.

[0019] The invention provides a treatment method and a treatment device for industrial waste gas containing nitrogen oxides, which can recycle permanganate as an oxidation and denitrification agent, thereby reducing operating costs.

[0020] Such as figure 1 As shown, the exhaust gas enters the desulfurization device 7 for desulfurization treatment after dedusting, and the desulfurized exhaust gas is input from the bottom of the denitrification tower 3 through the conveying device. Specifically, the delivery device includes a fan 5, the fan 5 is connected to the denitrification tower 3 and the desulfurization device 7, and the output end of the fan 5 is provided with an aeration head 4, and the fan 5 can transport the desulfurized waste gas to the The bottom of the denitrification tower 3. The denitrification tower can ...

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Abstract

A method for treating industrial waste gas containing nitrogen oxide comprises the steps of: (1) conveying waste gas containing NOx to the bottom of a denitration tower (3), and conveying a permanganate denitration agent to the top of the denitration tower (3), the permanganate denitration agent converting NOx into nitrate, and residual liquid flowing to the bottom of the denitration tower (3); (2) conveying the residual liquid at the bottom of the denitration tower (3) to an electrolytic tank (1), and electrifying the electrolytic tank (1) to electrolyze manganate in residual liquid into permanganate, so as to form the permanganate denitration agent; and (3) conveying the electrolyzed permanganate denitration agent to the top of the denitration tower (3). By means of the method, permanganate can be circularly utilized, so that operation costs are reduced; in addition, the scaling is avoided, the denitration tower (3) is not blocked, and the environmental pollution is avoided. In addition, also disclosed is a device for treating industrial waste gas containing nitrogen oxide.

Description

technical field [0001] The invention relates to the field of waste gas denitrification, in particular to a method and device for using a permanganate denitrification agent. Background technique [0002] With the continuous development of my country's economy, energy consumption is increasing year by year, NO x emissions increased rapidly. Nitrogen oxides have a very serious impact on the environment, human body, animals and plants, NO x As an acidic gas, it is oxidized and dissolved in water to form HNO 3 、HNO 2 , and fall to the ground with the rain, forming acid rain. NO released into the atmosphere x The photochemical reaction with primary pollutants such as hydrocarbons under the action of ultraviolet light produces secondary pollutants, and the mixture of these primary and secondary pollutants will form photochemical smog. NO x It is also the precursor of fine particles. Fine particles have an important impact on air quality and visibility. Fine particles are ver...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/79B01D53/56B01D53/96
CPCB01D53/56B01D53/79B01D53/96
Inventor 李明玉李艺春张鑫
Owner GUANGZHOU GREEN SPLENDID ENVIROMENT SCI & TECH CO LTD
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