Overflow device for desulfurizing adsorption tower

Abstract

The invention provides an overflow device for a flue gas desulfurization absorption tower (1), the overflow device comprises an overflow pipe (2) and an upward opening which is arranged on the top of the overflow pipe (2) and communicates with the atmosphere The anti-siphon pipe (3), the suction port of the overflow pipe (2) in the absorption tower (1) is located below the minimum liquid level (9) of the normal operation of the liquid in the absorption tower (1), and then the absorption is connected obliquely upward Tower (1), the highest central elevation (12) of the overflow pipe (2) is consistent with the elevation of the overflow liquid level (6) of the absorption tower (1), and the overflow pipe (2) extending from the inside of the absorption tower (1) to the outside of the tower ) extends downwards after passing the highest center level (12). The overflow device is simple and easy to implement, and is anti-clogging and anti-corrosion.

Description

Technical field [0001] The invention relates to an overflow device, and more specifically, to an overflow device for a flue gas desulfurization absorption tower. Background technique [0002] In the process of power generation with coal as the main fuel, a large amount of SO is released due to the direct combustion of coal. 2 , And as energy demand increases, SO 2 The emissions of slag are also increasing, causing more and more serious pollution to the atmosphere. Control SO 2 The emission of gas is very important and urgent in today's environmental protection work. Currently controlling SO 2 There are three main measures for emissions: desulfurization before combustion, desulfurization during combustion, and desulfurization after combustion, that is, flue gas desulfurization. Among them, wet flue gas desulfurization is considered to be the most mature and effective control method. [0003] The so-called wet flue gas desulfurization is basically based on the principle of acid-bas...

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Problems solved by technology

[0004] The purpose of the present invention is to provide an overflow device for a flue gas desulfurization absorption tower, to solve the problem of flow blockage of the overflow pipe caused by the overflow device in the prior art and the abnormal discharge of flue gas through the overflow pipe The problem

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