Airflow uniform distribution type wet-method smoke desulfurization and absorption tower

A technology of wet flue gas desulfurization and absorption tower, which is applied in separation methods, chemical instruments and methods, and separation of dispersed particles. It can solve problems such as uneven air distribution, increase contact area, improve utilization rate, and alleviate excessive flow velocity. Effect

Inactive Publication Date: 2013-12-25
武汉钢铁有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defect of uneven air distribution in the tower existing in the existing desulfurization spray absorption tower, and to provide a wet flue gas desulfurization absorption tower with uniform air distribution

Method used

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  • Airflow uniform distribution type wet-method smoke desulfurization and absorption tower
  • Airflow uniform distribution type wet-method smoke desulfurization and absorption tower

Examples

Experimental program
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Effect test

Embodiment 1

[0019] like Figure 1~2 The gas flow evenly distributed wet flue gas desulfurization absorption tower shown includes an absorption tower body 7, a slurry pool 4 is arranged at the bottom of the absorption tower body 7, and a flue gas is arranged on the wall of the absorption tower body 7 above the slurry pool 4. Gas inlet channel 3, flue gas outlet channel 1 is arranged on the top of the absorption tower body 7, and three layers of absorbent slurry spraying device 6 and demisting device are arranged in sequence from bottom to top between the flue gas inlet channel 3 and the flue gas outlet channel 1. The device 2, the absorbent slurry spraying device 6 and the flue gas inlet channel 1 are provided with an air flow uniform distribution device 5, and the air flow uniform distribution device 5 includes a plurality of horizontally spaced guide rods 5.1, and the two ends of the guide rod 5.1 It is directly connected to the cylinder wall of the absorption tower cylinder body 7 by we...

Embodiment 2

[0023] Another air-distributed wet flue gas desulfurization absorption tower of the present invention has an overall structure basically the same as that of Embodiment 1, except that the height of the guide rod 5.1 from the inverted V-shaped top angle to the bottom is 200-300mm, and the guide rod 5.1 The inverted V-shaped apex angle of the flow rod 5.1 is 60-70°, and the ratio of the total gap area between the flow guide rods 5.1 to the corresponding cross-sectional area of ​​the absorption tower cylinder body 7 is 45%-55%.

[0024] In the present invention, an air flow uniform distribution device 5 composed of a row of inverted V-shaped guide rods 5.1 is added in the absorption tower. The effect is to re-distribute the flue gas flow in the absorption tower evenly, realize the effective rectification of the air flow in the absorption tower, significantly improve the problem of excessive local gas velocity, increase the contact area and contact time between the flue gas and the ...

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Abstract

The invention provides an airflow uniform distribution type wet-method smoke desulfurization and absorption tower. The airflow uniform distribution type wet-method smoke desulfurization and absorption tower comprises an absorption tower barrel body, wherein a slurry tank is arranged at the bottom of the absorption tower barrel body; a smoke inlet channel is arranged in a barrel wall of the absorption tower barrel body above the slurry tank; a smoke outlet channel is arranged at the top of the absorption tower barrel body; an adsorbent slurry spraying device and a demister are arranged between the smoke inlet channel and the smoke outlet channel from top to bottom; an airflow uniform distribution device is arranged between the adsorbent slurry spraying device and the smoke inlet channel; the airflow uniform distribution device comprises a plurality of flow guide rods which are arrayed horizontally at intervals; the cross section of each flow guide rod is in an inversed V-shaped structure. According to the airflow uniform distribution type wet-method smoke desulfurization and absorption tower, smoke in the absorption tower can be distributed uniformly so that airflow in the absorption tower is effectively rectified, the problem that the partial air speed is too high is solved obviously, the contact area between the smoke and the slurry is enlarged and the contact time between the smoke and the slurry is prolonged; the utilization rate of the slurry is improved; the airflow uniform distribution type wet-method smoke desulfurization and absorption tower has the characteristics of simple structure, low modification cost and the like, is convenient to maintain and is easy to popularize.

Description

technical field [0001] The invention relates to a spray absorption tower in wet flue gas desulfurization equipment, in particular to a wet flue gas desulfurization absorption tower with uniform air distribution. Background technique [0002] The acid rain problem is one of the global environmental problems facing mankind today. The sulfur oxides SO produced by coal burning 2 and nitrogen oxides NO x Pollution is the main protozoa of acid rain in my country. Since my country's energy structure is dominated by coal, in my country's power industry, thermal power has always accounted for about 70% of the total power generation, and coal-fired power plants are the largest source of air pollution in my country. Controlling the flue gas pollution of power plants is the requirement to realize the coordinated development of economy, society and environment, and it is also the requirement to give full play to the advantages of my country's coal reserves and realize the sustainable d...

Claims

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Application Information

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IPC IPC(8): B01D53/80B01D53/50
Inventor 汤静芳陈旺生张英姚敢英莫亚平孙庆星蒋国波杨慧吴高明张九红
Owner 武汉钢铁有限公司
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