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Power plant desulfurization tower

A technology for desulfurization towers and power plants, applied in the field of desulfurization towers, can solve the problems of reducing the desulfurization efficiency of desulfurization towers, reducing the content of gypsum, and the dead angle of stirring, so as to achieve the effect of desulfurization, maximize the effect and ensure the concentration

Pending Publication Date: 2021-12-31
NORTH UNITED POWER CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the wet desulfurization process, the flue gas desulfurization is mainly carried out by spraying the empty tower. The desulfurization liquid circulation method adopts the internal circulation of the tower, and a slurry pool is set at the bottom of the desulfurization tower. A side-entry agitator is installed inside to prevent impurities from settling. However, the agitator blades of the side-entry agitator have a dead angle during the agitation process, which cannot achieve the effect of agitation and mixing, resulting in more gypsum deposits in the slurry tank, which reduces the spray rate. The content of gypsum in the shower liquid reduces the desulfurization efficiency of the desulfurization tower

Method used

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Embodiment 1

[0032] refer to figure 1 , 2 , is the first embodiment of the present invention, which provides a power plant desulfurization tower, which includes a main module 300 and a stirring module 200 .

[0033] The main module 300 includes a desulfurization tower 301 and a soot feeding body 302. The outer wall of the desulfurization tower 301 is provided with an air supply port 301a, and the soot feeding body 302 is installed at the gas supply port 301a; during the wet desulfurization process, the empty tower spray is mainly used for flue gas desulfurization , the desulfurization liquid circulation method adopts the circulation in the tower, and a pulp pool is set at the bottom of the desulfurization tower; the smoke is usually sent from the dust inlet body 302 into the desulfurization tower 301, and desulfurization is carried out through the device structure and desulfurization liquid inside the desulfurization tower 301, and the clean air is It is discharged from the top of the des...

Embodiment 2

[0041] refer to Figure 3-8, is the second embodiment of the present invention, this embodiment is based on the previous embodiment, and also includes a flushing module 100, the flushing module 100 and the stirring module 200 are installed at the bottom of the desulfurization tower; the flushing module 100 can flush the bottom of the desulfurization tower Scraping, the agitation of the agitation module 200 can reduce gypsum deposits in the slurry tank.

[0042] The flushing module 100 includes a water inlet pipe 101, a shaft pipe 102, a ring gear 103 and a descaling plate 104, the shaft pipe 102 and the ring gear 103 are installed at the bottom of the desulfurization tower, and the shaft pipe 102 is located in the ring gear 103 and is coaxial with the ring gear 103 The center of the arrangement, the descaling board 104 is located between the shaft tube 102 and the ring gear 103, and a plurality of them are arranged on the circumference and fixedly connected to the shaft tube 1...

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Abstract

The invention discloses a power plant desulfurization tower, which comprises a main body module and stirring modules; the main body module comprises a desulfurization tower and a smoke dust feeding body, the outer wall of the desulfurization tower is provided with a gas supply port, and the smoke dust feeding body is installed at the gas supply port; and the multiple groups of stirring modules are arranged along the circumference of the outer wall of the desulfurization tower, a through hole is formed in the outer wall of the desulfurization tower, and the stirring modules penetrate through the through hole to be fixedly mounted on the desulfurization tower and are located at the positions, close to the bottom, of the desulfurization tower. According to the invention, gypsum precipitates at the bottom of the desulfurization tower can be efficiently impacted without dead angles, and a rotating and inclined scraping impact plate can also play a role in rotating and stirring, so that the stirring and mixing effects on precipitated gypsum are integrally realized, the concentration of gypsum in spraying liquid is ensured, and the maximization of the desulfurization effect is realized.

Description

technical field [0001] The invention relates to the technical field of desulfurization towers, in particular to a power plant desulfurization tower. Background technique [0002] China is a big coal-burning country. Coal accounts for more than 75% of the total primary energy consumption, and the structure of primary energy dominated by coal will not change in the near future. Therefore, air pollution and its harm caused by sulfur dioxide have increasingly become an environmental concern of people. question. [0003] Flue gas desulfurization is the most effective and irreplaceable technology for reducing SO2 emissions. Among them, wet desulfurization technology has become the world's leading technology due to its advantages such as high desulfurization efficiency, wide application range, mature technology, rich absorbent resources, and commercial sales of by-products. The most widely used flue gas desulfurization process. In the wet desulfurization process, the flue gas des...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/50B01D53/78B01D53/96
CPCB01D53/502B01D53/504B01D53/78B01D53/96B01D2251/404B01D2258/0283
Inventor 王建军刘明杰李蔚张建军苗泽宇庞博文王晓赵超越王艳清郝曦
Owner NORTH UNITED POWER CO LTD
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