Immersed multi-stage flue gas environment-friendly desulfurization tower

Abstract

The invention discloses a submerged multi-stage flue gas environmental protection desulfurization tower, which comprises a tower body, the inner lower side of the tower body is equipped with an alkaline absorbent, and the inner lower side of the tower body is provided with a ring-shaped flue gas overflow device; the beneficial effect of the present invention is: because the flue gas overflow device includes several layers of annular pipes, the flue gas overflows evenly through the branch pipes on the annular pipes, so that the flue gas bubbles rise evenly, and the suspended particles in the flue gas absorb And sulfur oxides are adsorbed by the alkaline absorbent with high efficiency, and the vibrating membrane vibrates, so that the alkaline absorbent vibrates in transverse ripples, making the flue gas bubbles easily dispersed into multiple small bubbles, and improving the interaction between the flue gas and the alkaline absorbent Contact efficiency, the alkaline absorbent is sprayed on the upper side of the tower body through the spray device, and the alkaline absorbent falling on the throwing plate is thrown out, which further improves the adsorption effect on flue gas, so the desulfurization efficiency of this device is high , the desulfurization efficiency is fast, and the height of the tower body is effectively reduced to save costs.

Description

technical field [0001] The invention relates to the technical field of environmental protection engineering, in particular to an immersed multi-stage flue gas environmental protection desulfurization tower. Background technique [0002] At present, the emission of air pollutants in various regions is controlled according to the total amount, especially coal-fired thermal power units have been required to fully implement the ultra-low emission standards of pollutants. The executive meeting of the State Council has decided to comprehensively implement ultra-low emission and energy-saving transformation of coal-fired power plants, greatly reducing coal consumption and pollution emissions for power generation, which means that the emission of sulfur oxides in the flue gas emitted by coal-fired power plants in my country will not exceed 35mg / Nm 3 . [0003] The desulfurization of coal-fired flue gas in my country mainly adopts the wet desulfurization process. In order to achieve...

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Problems solved by technology

[0003] The desulfurization of coal-fired flue gas in my country mainly adopts the wet desulfurization process. In order to achieve higher desulfurization efficiency, it is necessary to add multiple layers of spraying to the desulfurization system. , which poses a threat to the operation safety of environmental protection facilities, so it is necessary to reduce the height of the desulfurization tower while ensuring the desulfurization rate

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