A flue gas treatment system and method for integrated ammonia desulfurization and PM2.5 removal

A technology of flue gas and ammonia method, which is applied in separation methods, chemical instruments and methods, and separation of dispersed particles to achieve the effects of improving governance effects, reducing operating costs and floor space, and preventing ammonia from escaping

Active Publication Date: 2016-03-23
SHANGHAI LONGKING ENVIRONMENTAL PROTECTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, there are few reports on the process system or equipment combining the wet electrostatic precipitator technology and the ammonia desulfurization technology in the existing technology

Method used

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  • A flue gas treatment system and method for integrated ammonia desulfurization and PM2.5 removal
  • A flue gas treatment system and method for integrated ammonia desulfurization and PM2.5 removal

Examples

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Embodiment 1

[0050] figure 1 It is a structural schematic diagram of the flue gas treatment system for ammonia method integrated desulfurization and PM2.5 removal of the present invention. Such as figure 1 As shown, a kind of flue gas treatment system with integrated ammonia desulfurization and PM2.5 removal proposed in this embodiment includes:

[0051] Flue gas integrated treatment tower 100 for ammonia wet desulfurization and integrated removal of PM2.5,

[0052] Ammonia removal agent pulping and slurry supply system 200 for preparation and supply of ammonia desulfurization agent,

[0053] A water circulation system 300 for maintaining the process water balance of the flue gas treatment system, and

[0054] A by-product preparation system 400 for recycling by-products of ammonia desulfurization.

[0055] Such as figure 1 As shown, the ammonia remover pulping and slurry supply system 200 is connected to the flue gas integrated treatment tower 100, and the ammonia remover slurry is t...

Embodiment 2

[0065] This example proposes a flue gas treatment method with integrated ammonia desulfurization and PM2.5 removal, using the flue gas treatment system with ammonia integrated desulfurization and PM2.5 removal in Example 1 for flue gas purification treatment, combined with figure 1 and figure 2 shown, including the following steps:

[0066] Step 1, ammonia removal agent preparation stage: the ammonia removal agent stock solution stored in the ammonia storage tank 201 is transported by the ammonia distribution pump 202 to the ammonia distribution tank 203, and the ammonia removal agent is prepared according to the set ratio with industrial water , and then sent to the ammonia removal agent spraying device 104 by the ammonia supply pump 204.

[0067] Step 2, ammonia method synergistic desulfurization and PM2.5 removal stage: the flue gas to be treated is introduced from the flue gas inlet 103 into the flue gas integrated treatment tower 100, and the upward flue gas is sprayed ...

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Abstract

The invention discloses smoke-gas treatment system and method of integrated desulfuration and PM2.5 (Fine Particulate Matter) desorption by adopting an ammonia process. The smoke-gas treatment system comprises a smoke-gas integrated treatment tower, an ammonia desorption agent pulping and slurry supplying system, a water circulation system and a side product preparation system, wherein the ammonia desorption agent pulping and slurry supplying system is connected with the smoke-gas integrated treatment tower; a desulfuration size outlet of the smoke-gas integrated treatment tower is connected with the water circulation system in a conducted manner; the water circulation system filters and separates desulfuration slurry to obtain filtered clean water and concentrated waste liquid; the filtered clean water is introduced into the smoke-gas integrated treatment tower; the concentrated waste liquid is introduced into the side product preparation system. The method provided by the invention comprises the following steps: a step of preparing an ammonia desulfuration agent; a step of desulfurizing and removing the PM2.5 by adopting the ammonia process in a coordinative manner; a step of treating waste liquid; and a step of preparing a side product. According to the smoke-gas treatment system and method provided by the invention, the problem of ammonia volatilization loss can be effectively solved; the ammonia use ratio is increased; the secondary pollution is avoided; no waste water is discharged, so that the water circulation utilization is realized; furthermore, the PM2.5 can be removed in smoke gas in the coordinative process.

Description

technical field [0001] The invention relates to the technical field of flue gas treatment technology, in particular to a flue gas treatment system and method for integrated ammonia desulfurization and PM2.5 removal. Background technique [0002] Although the rapid development of industrialization has brought rapid economic development and improvement of living standards for human beings, it has also led to various environmental pollution problems. Among them, air pollution is one of the most serious environmental problems facing the survival and development of human society in the 21st century. my country is a country rich in coal reserves. The excessive dependence of energy consumption structure on coal has led to the aggravation of air pollution. The sulfur dioxide emitted by coal combustion is the main precursor of acid rain and fine particles, causing various hazards. [0003] Ammonia desulfurization technology uses ammonia to absorb SO in tail gas 2 , is one of the mo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D50/00B01D53/80B01D53/50B01D53/96
Inventor 高继贤张小娟阎冬
Owner SHANGHAI LONGKING ENVIRONMENTAL PROTECTION
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