High-efficiency demister

Abstract

The invention discloses a high-efficiency demister. The high-efficiency demister comprises a plurality of demisting components; each demisting component comprises a gas riser pipe and an outer barrel;the gas riser pipe is axially divided into an upper part and a lower part, the upper part is a gas riser pipe I, the lower part is a gas riser pipe II, and the gas riser pipe I and the gas riser pipeII are connected with each other by a bearing; the top of the gas riser pipe I is provided with an upper capping plate; the gas riser pipe I is circumferentially provided with a plurality of slits; vanes are circumferentially arranged on the gas riser pipe I at positions close to the slits; the part, located below a tray, of the gas riser pipe II is circumferentially and uniformly provided with aplurality of gas inlets; the part, located at the gas inlets, of the inner wall of the gas riser pipe II is provided with inflow gas deflectors; the inner surface of the outer barrel is provided witha groove; and the cross section shape of the groove is composed of an arc and a straight section. The high-efficiency demister of the invention has the advantages of simple structure, small pressuredrop, small possibility of scale formation, convenient installation, reduced mist entrainment and capacity of effectively realizing gas-liquid separation, and is especially applicable to occasions with large gas flow fluctuations.

Description

technical field [0001] The invention relates to a high-efficiency demister, which belongs to the field of gas-liquid separation in chemical engineering and is suitable for the gas-liquid separation process in the fields of chemical engineering, environmental protection and the like. Background technique [0002] SO 2 And dust is an important cause of air pollution in my country, and it is also an air pollutant that is currently under control in our country. At present, wet process is mostly used in the field of environmental protection. In the process of wet process flue gas desulfurization, the absorption tower is easy to generate "fog" with a particle size of 10-60 microns during operation, which not only contains water, but also dissolves sulfuric acid. , sulfate, SO 2 etc., causing pollution to the atmospheric environment, and at the same time causing serious corrosion to the exhaust pipe and heat exchanger. Therefore, in the wet desulfurization process, the purified ...

AI Technical Summary

Problems solved by technology

[0006] The demister described in CN200920128824.1 is composed of a cooler, a coarse demister and a fine demister. The disadvantage of the traditional mist eliminator is that the liquid droplets flow countercurrently to the direction of the airflow, which improves the mist removal efficiency, but the structure of the mist eliminator is complex and difficult to manufacture. easy to clog

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