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Flue gas desulfurization absorption tower with twin-stage air flow distribution device

The technology of an air distribution device and a desulfurization absorption tower, which is applied in the field of environmental protection equipment, can solve problems such as uneven distribution of air flow and reduce desulfurization efficiency, so as to increase the gas-liquid contact area, save operating energy consumption, and improve mass transfer efficiency and absorption efficiency. Effect

Pending Publication Date: 2018-12-11
HEFEI CEMENT RES DESIGN INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional absorption towers reduce desulfurization efficiency due to uneven distribution of gas flow

Method used

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  • Flue gas desulfurization absorption tower with twin-stage air flow distribution device

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Embodiment Construction

[0014] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0015] See figure 1 , a flue gas desulfurization absorption tower with a two-stage airflow distribution device, including a tower body 1, a slurry tank 2 located at the bottom of the tower body 1, and a double-layer tank located above the slurry tank 2 in the tower body 1 and arranged in sequence from bottom to top stage air distribution device, spray pipe 7 and demister 8; the tower body 1 is provided with an absorption tower inlet 3 communicating with the sl...

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Abstract

The invention discloses a flue gas desulfurization absorption tower with a twin-stage air flow distribution device. The flue gas desulfurization absorption tower comprises a tower body, a slurry pondlocated at the bottom of the tower body and the twin-stage air flow distribution device, a spray pipe and a demister which are sequentially arranged at the position, above the slurry pond, in the tower body from bottom to top; the tower body is provided with an absorption tower inlet communicated with the slurry pond, and the top end of the tower body is provided with an absorption tower outlet. The flue gas desulfurization absorption tower achieves rectification and uniform distribution of smoke entering the tower through the twin-stage air flow distribution device, when the smoke passes through the twin-stage air flow distribution device, the air liquid generates the strong impact effect: in the falling process of absorption slurry drops, the drops are broken again by the smoke which isaccelerated to go up when the drops pass through the twin-stage air flow distribution device, a new mass transfer absorption surface is generated, which is amount to, a spray layer without a circulation pump is additionally arranged, thus the mass transferring efficiency and the absorption efficiency are increased, and the operation energy consumption is saved.

Description

technical field [0001] The invention relates to the field of environmental protection equipment, in particular to a flue gas desulfurization absorption tower with a two-stage airflow distribution device. Background technique [0002] In recent years, wet calcium-based flue gas desulfurization technology has been widely used due to its advantages of safe and reliable operation, high desulfurization efficiency, high utilization rate of desulfurizer, and strong applicability. Empty tower spraying device has become the first choice in desulfurization projects at home and abroad at present because of its fewer tower internal components, less fouling and clogging of desulfurization equipment, smaller pressure loss, and easier operation and maintenance. [0003] When the flue gas enters the gas-liquid mixing area of ​​the absorption tower, it is reversely contacted and mixed with the absorbent slurry (liquid absorbent slurry) sprayed under the spray layer, and most of the gaseous s...

Claims

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Application Information

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IPC IPC(8): B01D53/80B01D53/50
CPCB01D53/50B01D53/80B01D2258/0283B01D2251/404
Inventor 孙礼明毛志伟唐旻昊李修明胡小军
Owner HEFEI CEMENT RES DESIGN INST
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