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Boiler flue gas dust removal and desulfurization system

A desulfurization system, boiler flue gas technology, applied in gas treatment, membrane technology, dispersed particle separation, etc., can solve the problem of increasing the height of the absorption tower in the spray layer, and achieve the effect of saving energy, prolonging the circulation length, and reducing the height

Inactive Publication Date: 2017-06-13
HEFEI TIANXIANG ENVIROMENT PROJECT
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a boiler flue gas dust removal and desulfurization system, which solves the problem that the height of the absorption tower is continuously increased due to the continuous increase of the number of spray layers in the existing spray tower

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Embodiment Construction

[0024] The following clearly and completely describes the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, but not all of them. 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.

[0025] Such as figure 1 As shown, this embodiment provides a boiler flue gas dedusting and desulfurization system, including a desulfurization tower 1, an induced draft fan 3 and a chimney 4 connected in sequence, and the desulfurization tower 1 is composed of a desulfurization main tower 1-1 and a desulfurization auxiliary tower 1-2 Composition, the top of the desulfurization main tower 1-1 communicates with the top of the desulfurization sub-tower 1-2, the bottom of the desulfurization main tower 1-1 is provided with a flue gas in...

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Abstract

The invention discloses a boiler flue gas dust removal and desulfurization system, belonging to the technical field of flue gas desulfurization for environmental protection. The boiler flue gas dust removal and desulfurization system comprises a desulfurizing tower, an induced draft fan and a chimney which are connected in sequence, wherein the desulfurizing tower consists of a desulfurizing main tower and a desulfurizing subsidiary tower; the top of the desulfurizing main tower is communicated with the top of the desulfurizing subsidiary tower; the bottom of the desulfurizing main tower is provided with a flue gas inlet pipe; the bottom of the desulfurizing subsidiary tower is provided with a flue gas outlet pipe; the flue gas outlet pipe is communicated with the induced draft fan; the lower part of the desulfurizing main tower is provided with a water film processor; the water film processor is arranged above the flue gas inlet pipe; the lower part of the desulfurizing main tower is provided with a lime slurry discharging pipe; the lime slurry discharging pipe is respectively connected with a desulfurizing circulation pool and a lime slurry concentrating circulation device; and the desulfurating circulation pool is connected with a multistage lime slurry sprinkling pipe. In the boiler flue gas dust removal and desulfurization system disclosed by the invention, harmful gases such as SO3, chloride and fluoride can be effectively removed, and the rate of removal can reach 95% or above.

Description

technical field [0001] The invention relates to the technical field of flue gas desulfurization environmental protection, in particular to a boiler flue gas dust removal and desulfurization system. Background technique [0002] At present and for a long period of time in the future, China's energy structure is dominated by coal, and the flue gas emitted by coal-fired boilers contains a large amount of SO 2 , has caused great harm to the pollution of the environment. [0003] SO 2 Soaring emissions make most cities SO 2 The concentration is at a high pollution level. SO 2 The increase in emissions has led to an abnormally rapid increase in acid rain in China. Severe acid rain and fragile ecosystems have caused serious economic losses in my country. The direct economic losses caused by acid rain pollution to forests and crops have reached tens of billions of yuan. If not strictly controlled, my country's SO 2 Emissions will continue to increase, SO 2 And acid rain pollu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/50B01D53/68B01D53/80
CPCB01D53/504B01D53/68B01D2251/404B01D2251/604B01D2258/0283B01D2259/126
Inventor 周玉祥
Owner HEFEI TIANXIANG ENVIROMENT PROJECT
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