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Incinerator flue gas multi-pollutant dry-type purification process and device

A purification process, purification device technology, applied in incinerators, climate change adaptation, combustion methods, etc.

Pending Publication Date: 2020-06-16
ANHUI WEIDA ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention aims to solve the deficiency of the existing incinerator flue gas treatment method, and discloses a multi-pollutant dry purification process and device for the incinerator flue gas

Method used

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  • Incinerator flue gas multi-pollutant dry-type purification process and device
  • Incinerator flue gas multi-pollutant dry-type purification process and device

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Embodiment Construction

[0031] In order to set forth the specific implementation steps of the present invention more vividly, it will be further described as follows in conjunction with the accompanying drawings:

[0032] Referring to the accompanying drawings, an incinerator flue gas multi-pollutant dry purification device includes a desulfurizing agent powder bin 1, a desulfurizing agent mill 2, a Roots blower 3, a desulfurizing agent dosing device 4, a desulfurizing tower 5, and a cloth bag Dust collector 6, medium and low temperature SCR reactor 7, ammonia injection grid 8, static mixer 9, ammonia gas preparation system 10, thermal analysis / heating system 11, waste heat heat exchange device 12, induced draft fan 13; the bag dust removal The device 6 includes an air inlet flue 14 , a flue gas uniform distribution device 15 , an ash hopper 16 , a filter bag 17 , a clean air chamber 18 , and an air outlet flue 19 . The flue gas of the incinerator is desulfurized by two stages (calcium hydroxide + so...

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Abstract

The invention relates to an incinerator flue gas multi-pollutant dry-type purification process and device. The device comprises a first-stage desulfurization system and a second-stage desulfurizationsystem which are arranged in sequence, wherein the desulfurization system in each stage comprises a desulfurizing agent powder bin, a desulfurizing agent pulverizer, a Roots blower, a desulfurizing agent adding device, a desulfurizing tower and a bag-type dust collector which are arranged in sequence; a medium-low temperature SCR reactor, a waste heat exchange device and an induced draft fan are sequentially arranged at the lower part of the second-stage desulfurization system; an ammonia spraying grid and a static mixer are arranged in the medium-low temperature SCR reactor, and the ammonia spraying grid is arranged in an air inlet pipeline of the medium-low temperature SCR denitration reactor; the medium-low temperature SCR reactor is connected with an ammonia gas preparation system anda thermal desorption / heating system; the bag-type dust collector comprises a gas inlet flue, an ash bucket arranged at the bottom of the dust collector, a filter bag arranged in the dust collector, agas purification chamber and a gas outlet flue, and a flue gas uniform distribution device is arranged on the side of the ash bucket.

Description

technical field [0001] The invention belongs to the field of integrated high-efficiency control of multi-pollutants in the flue gas of an incinerator, and specifically relates to a dry-type purification process and device for multi-pollutants in the flue gas of an incinerator. Background technique [0002] Due to the dust, SO 2 , NOx and other harmful substances, causing pollution to the environment. With the increasingly stringent environmental protection emission standards and the increasing efforts of the country to control pollution, the treatment of flue gas from incinerators has been officially mentioned on the daily agenda. [0003] A large amount of garbage will be produced in human daily life and work. Its components are complex and harmful, which seriously affects the ecological environment. Waste incineration has gradually replaced the traditional method of landfill with the advantage of achieving the goal of waste reduction and resource utilization in my countr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/75B01D53/83B01D53/50B01D53/68B01D46/02B01D53/86B01D53/56F23J15/06F23G5/46
CPCB01D53/75B01D53/83B01D53/508B01D53/685B01D46/023B01D53/8631F23J15/06F23G5/46B01D2251/2062B01D2251/404B01D2251/304B01D2258/0283Y02E20/30Y02A50/2351
Inventor 黄乃金毛宜超吴天晴吴昊梅文娟陈玉林徐兵解彬
Owner ANHUI WEIDA ENVIRONMENTAL PROTECTION TECH
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