CN103831006A - Novel downstream tower-countercurrent tower series-connected flue gas desulphurization apparatus - Google Patents
Novel downstream tower-countercurrent tower series-connected flue gas desulphurization apparatus Download PDFInfo
- Publication number
- CN103831006A CN103831006A CN201410023478.6A CN201410023478A CN103831006A CN 103831006 A CN103831006 A CN 103831006A CN 201410023478 A CN201410023478 A CN 201410023478A CN 103831006 A CN103831006 A CN 103831006A
- Authority
- CN
- China
- Prior art keywords
- absorption tower
- tower
- level
- countercurrent
- following current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 239000003546 flue gas Substances 0.000 title claims abstract description 21
- 238000010521 absorption reaction Methods 0.000 claims abstract description 175
- 239000002002 slurry Substances 0.000 claims abstract description 49
- 230000003647 oxidation Effects 0.000 claims abstract description 22
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 22
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 18
- 239000010440 gypsum Substances 0.000 claims abstract description 18
- 239000006096 absorbing agent Substances 0.000 claims 8
- 238000005507 spraying Methods 0.000 claims 3
- 238000010992 reflux Methods 0.000 claims 1
- 238000006477 desulfuration reaction Methods 0.000 abstract description 19
- 230000023556 desulfurization Effects 0.000 abstract description 19
- 239000007921 spray Substances 0.000 abstract description 9
- 238000010276 construction Methods 0.000 abstract description 5
- 239000003595 mist Substances 0.000 description 3
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 239000000809 air pollutant Substances 0.000 description 2
- 231100001243 air pollutant Toxicity 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Landscapes
- Treating Waste Gases (AREA)
Abstract
一种新型顺流塔-逆流塔串联烟气脱硫装置,包括一级顺流吸收塔和二级逆流吸收塔,连通一级顺流吸收塔和二级逆流吸收塔的连接烟道;所述一级顺流吸收塔包括设置在其上部的一级顺流吸收塔入口,一级顺流吸收塔内下部为一级吸收塔浆池,与一级吸收塔浆池连接的一级吸收塔供浆泵和一级吸收塔循环泵,设置在一级顺流吸收塔内上部的一级吸收塔喷淋层通过一级吸收塔循环泵管路和一级吸收塔循环泵连接,在一级吸收塔浆池内设置一级吸收塔氧化空气管网;本发明解决了现有石灰石-石膏湿法单塔脱硫装置脱硫效率,难以满足特别排放限值要求、改造难度较大、停机施工时间过长等问题,具有脱硫效率高、运行调节灵活,停机施工时间短的优点。
A novel flue gas desulfurization device in series with downstream towers and countercurrent towers, comprising a first-stage downstream absorption tower and a second-stage countercurrent absorption tower, and a connecting flue connecting the first-stage downstream absorption tower and the second-stage countercurrent absorption tower; The first-stage downstream absorption tower includes the entrance of the first-stage downstream absorption tower arranged on its upper part, and the lower part of the first-stage downstream absorption tower is the primary absorption tower slurry pool, and the primary absorption tower connected with the primary absorption tower slurry pool supplies slurry The pump and the circulation pump of the primary absorption tower, the spray layer of the primary absorption tower arranged in the upper part of the first-stage downstream absorption tower is connected with the circulation pump of the primary absorption tower through the pipeline of the primary absorption tower circulation pump, and in the primary absorption tower A first-stage absorption tower oxidation air pipe network is set in the slurry tank; the invention solves the problems of the existing limestone-gypsum wet single-tower desulfurization device, which is difficult to meet the requirements of special emission limit values, difficult to transform, and long shutdown construction time, etc. , has the advantages of high desulfurization efficiency, flexible operation and adjustment, and short shutdown and construction time.
Description
技术领域technical field
本发明涉及烟气脱硫技术领域,具体涉及一种新型顺流塔-逆流塔串联烟气脱硫装置。The invention relates to the technical field of flue gas desulfurization, in particular to a novel downstream tower-countercurrent tower serial flue gas desulfurization device.
背景技术Background technique
根据《火电厂大气污染物排放标准》(GB13223-2011)规定,除高硫煤地区外,现有的火力发电锅炉的SO2排放限值将由目前400mg/m3降低到200mg/m3,而且在国务院环境保护行政主管部门规定的容易发生重大大气环境污染问题而需要严格控制大气污染物排放的地区,SO2的排放要求执行50mg/m3的标准。在国家环境保护部下发的“关于印发《重点区域大气污染防治“十二五”规划》的通知”【环发[2012]130号】中明确了重点控制区域范围,重点控制区域SO2排放要求执行50mg/m3的特别排放限值。重点区域内大多数火电厂现有的脱硫装置都不能满足新的特别排放限值要求,需要对现有的脱硫设施进行增容改造,提高脱硫效率。但现有的石灰石-石膏湿法脱硫装置基本都是采用单塔型式,脱硫效率受到一定的限制,且受现有空间场地、吸收塔结构、施工时间等限制,单塔改造很难实施。According to the "Emission Standard of Air Pollutants for Thermal Power Plants" (GB13223-2011), except for high-sulfur coal areas, the SO 2 emission limit of existing thermal power boilers will be reduced from the current 400mg/m 3 to 200mg/m 3 , and In areas that are prone to major air pollution problems and need to strictly control the emission of air pollutants as stipulated by the environmental protection administrative department of the State Council, the emission of SO 2 is required to implement the standard of 50mg/m 3 . In the "Notice on Printing and Distributing the "Twelfth Five-Year Plan" for the Prevention and Control of Air Pollution in Key Areas" [Huan Fa [2012] No. 130] issued by the Ministry of Environmental Protection, the scope of key control areas and the SO 2 emission requirements of key control areas are clarified Implement a special emission limit of 50mg/m 3 . The existing desulfurization devices of most thermal power plants in key areas cannot meet the new special emission limit requirements, and it is necessary to increase the capacity of existing desulfurization facilities to improve desulfurization efficiency. However, the existing limestone-gypsum wet desulfurization devices basically adopt the single-tower type, and the desulfurization efficiency is limited to a certain extent. Due to the limitations of the existing space, the structure of the absorption tower, and the construction time, it is difficult to implement a single-tower transformation.
发明内容Contents of the invention
为了解决上述现有技术存在的问题,本发明的目的在于提供一种新型顺流塔-逆流塔串联烟气脱硫装置,解决了现有石灰石-石膏湿法单塔脱硫装置脱硫效率难以满足特别排放限值要求、改造难度较大、停机施工时间过长等问题,具有脱硫效率高、运行调节灵活,停机施工时间短的优点。In order to solve the above-mentioned problems in the prior art, the purpose of the present invention is to provide a novel downstream tower-countercurrent tower series flue gas desulfurization device, which solves the problem that the desulfurization efficiency of the existing limestone-gypsum wet single-tower desulfurization device is difficult to meet the special discharge requirements. It has the advantages of high desulfurization efficiency, flexible operation adjustment, and short shutdown construction time.
为达到以上目的,本发明采用如下技术方案:To achieve the above object, the present invention adopts the following technical solutions:
一种新型顺流塔-逆流塔串联烟气脱硫装置,包括一级顺流吸收塔1和二级逆流吸收塔2,连通一级顺流吸收塔1和二级逆流吸收塔2的连接烟道3;所述一级顺流吸收塔1包括设置在其上部的一级顺流吸收塔入口4,一级顺流吸收塔1内下部为一级吸收塔浆池13,与一级吸收塔浆池13连接的一级吸收塔供浆泵23和一级吸收塔循环泵6,设置在一级顺流吸收塔1内上部的一级吸收塔喷淋层8通过一级吸收塔循环泵管路7和一级吸收塔循环泵6连接,在一级吸收塔浆池13内设置一级吸收塔氧化空气管网18。A new flue gas desulfurization device in series with downstream towers and countercurrent towers, including a first-stage
所述一级吸收塔浆池13内位于一级吸收塔氧化空气管网18的下方设置有一级吸收塔搅拌器14。A primary
所述一级顺流吸收塔1设有石膏浆液排出口,石膏浆液经石膏浆液排出口通过石膏排出泵25排出至石膏处理系统。The first-stage
所述二级逆流吸收塔2包括设置在其上部的二级逆流吸收塔出口5,二级逆流吸收塔2内下部为二级吸收塔浆池15,与二级吸收塔浆池15连接的二级吸收塔供浆泵24和二级吸收塔循环泵9,设置在二级逆流吸收塔2内上部的二级吸收塔喷淋层11通过二级吸收塔循环泵管路10和二级吸收塔循环泵9连接,在二级吸收塔浆池15内设置二级吸收塔氧化空气管网19,在二级逆流吸收塔2内、二级吸收塔喷淋层11上部设置有二级吸收塔除雾器12,所述二级吸收塔氧化空气管网19和一级吸收塔氧化空气管网18均和氧化风机17连接,所述二级吸收塔浆池15和一级吸收塔浆池13间设置强制浆液循环泵20和回流管道22。Described secondary
所述二级吸收塔浆池15内位于二级吸收塔氧化空气管网19的下方设置有二级吸收塔搅拌器16。A secondary
所述连接烟道3与一级顺流吸收塔1和二级逆流吸收塔2之间均有向上10~15°的倾角。There is an upward inclination angle of 10-15° between the connecting
本发明和现有技术相比较,具有如下优点:Compared with the prior art, the present invention has the following advantages:
1、和现有单塔技术相比,采用一级顺流吸收塔1和二级逆流吸收塔2串联方式,中间采用连接烟道连接,具有脱硫效率高、运行调节灵活、停机施工时间短的优点。1. Compared with the existing single-tower technology, the first-level
2、与现有双塔技术相比,一级吸收塔采用顺流塔型式,烟气从一级顺流吸收塔1上部一级顺流吸收塔入口4进入,经中间连接烟道3进入二级逆流吸收塔2,吸收塔间连接烟道3不需折返,没有弯头,减少了吸收塔间连接烟道阻力,降低了能耗,且节省了空间位置,更便于布置。2. Compared with the existing double-tower technology, the first-stage absorption tower adopts the downstream tower type, and the flue gas enters from the upper part of the first-stage
附图说明Description of drawings
附图为本发明的结构示意图。Accompanying drawing is the structural representation of the present invention.
具体实施方式Detailed ways
以下结合附图及具体实施例,对本发明作进一步的详细描述。The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
如附图所示,本发明一种新型顺流塔-逆流塔串联烟气脱硫装置,包括一级顺流吸收塔1和二级逆流吸收塔2,连通一级顺流吸收塔1和二级逆流吸收塔2的连接烟道3;所述一级顺流吸收塔1包括设置在其上部的一级顺流吸收塔入口4,一级顺流吸收塔1内下部为一级吸收塔浆池13,与一级吸收塔浆池13连接的一级吸收塔供浆泵23和一级吸收塔循环泵6,一级顺流吸收塔1由一级吸收塔供浆泵23提供吸收剂浆液,设置在一级顺流吸收塔1内上部的一级吸收塔喷淋层8通过一级吸收塔循环泵管路7和一级吸收塔循环泵6连接,在一级吸收塔浆池13内设置一级吸收塔氧化空气管网18。As shown in the accompanying drawings, a novel downstream tower-countercurrent tower series flue gas desulfurization device of the present invention includes a first-stage
作为本发明的优选实施方式,所述一级吸收塔浆池13内位于一级吸收塔氧化空气管网18的下方设置有一级吸收塔搅拌器14,防止吸收塔浆液沉积。As a preferred embodiment of the present invention, a primary
所述一级顺流吸收塔1设有石膏浆液排出口,石膏浆液经石膏浆液排出口通过石膏排出泵25排出至石膏处理系统。The first-stage
所述二级逆流吸收塔2包括设置在其上部的二级逆流吸收塔出口5,二级逆流吸收塔2内下部为二级吸收塔浆池15,与二级吸收塔浆池15连接的二级吸收塔供浆泵24和二级吸收塔循环泵9,二级逆流吸收塔2由二级吸收塔供浆泵24提供吸收剂浆液,设置在二级逆流吸收塔2内上部的二级吸收塔喷淋层11通过二级吸收塔循环泵管路10和二级吸收塔循环泵9连接,在二级吸收塔浆池15内设置二级吸收塔氧化空气管网19,在二级逆流吸收塔2内、二级吸收塔喷淋层11上部设置有二级吸收塔除雾器12,所述二级吸收塔氧化空气管网19和一级吸收塔氧化空气管网18均和氧化风机17连接,氧化空气由氧化风机17分别送入一级吸收塔氧化空气管网18和二级吸收塔氧化空气管网19;所述二级吸收塔浆池15和一级吸收塔浆池13间设置强制浆液循环泵20,强制浆液循环泵20把二级吸收塔浆池15中浆液通过强制循环管道21排至一级吸收塔浆池13,同时设置有回流管道22,可通过调整回流量控制排浆流量。所述二级吸收塔浆池15内位于二级吸收塔氧化空气管网19的下方设置有二级吸收塔搅拌器16。Described secondary
作为本发明的优选实施方式,所述连接烟道3与一级顺流吸收塔1和二级逆流吸收塔2之间均有向上10~15°的倾角,可有效防止连接烟道3中浆液沉积。As a preferred embodiment of the present invention, there is an upward inclination angle of 10-15° between the connecting
本发明的工作原理为:含SO2烟气通过一级顺流吸收塔入口4进入一级顺流吸收塔1中,一级吸收塔浆池13中的浆液通过一级吸收塔循环泵6经一级吸收塔循环泵管路7从一级吸收塔喷淋层8雾化喷出,喷出的浆液与含SO2烟气发生反应,将烟气中的大部分SO2去除,经一级顺流吸收塔1处理后的烟气从连接烟道3进入二级逆流吸收塔2中,二级吸收塔浆池15中的浆液通过二级吸收塔循环泵9经二级吸收塔循环泵管路10从二级吸收塔喷淋层11雾化喷出,喷出的浆液与烟气发生反应,进行二次高效脱硫,二次脱硫后的烟气进入二级吸收塔除雾器12,将烟气中携带的大部分雾滴除去后,从二级逆流吸收塔出口5排出。The working principle of the present invention is: the flue gas containing SO enters the first-level
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410023478.6A CN103831006A (en) | 2014-01-18 | 2014-01-18 | Novel downstream tower-countercurrent tower series-connected flue gas desulphurization apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410023478.6A CN103831006A (en) | 2014-01-18 | 2014-01-18 | Novel downstream tower-countercurrent tower series-connected flue gas desulphurization apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103831006A true CN103831006A (en) | 2014-06-04 |
Family
ID=50795090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410023478.6A Pending CN103831006A (en) | 2014-01-18 | 2014-01-18 | Novel downstream tower-countercurrent tower series-connected flue gas desulphurization apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103831006A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106166434A (en) * | 2016-07-21 | 2016-11-30 | 浙江天地环保科技有限公司 | A kind of ozone oxidation double tower ammonia process of desulfurization denitrating technique and system thereof |
| CN107952365A (en) * | 2017-12-01 | 2018-04-24 | 中国电建集团河北省电力勘测设计研究院有限公司 | A kind of high-temperature flue gas evaporation desulfurizing waste water processing device and its processing method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0496295A1 (en) * | 1991-01-22 | 1992-07-29 | Mitsubishi Jukogyo Kabushiki Kaisha | High-Performance flue-gas desulfurization process and apparatus |
| JPH0716424A (en) * | 1993-06-23 | 1995-01-20 | Mitsubishi Heavy Ind Ltd | Method and device for desulfurizing high concentration sulfur dioxide containing gas |
| CN1958131A (en) * | 2006-10-09 | 2007-05-09 | 西安交通大学 | Gas-liquid contacting response operator of fluid curtain bed |
| CN201208544Y (en) * | 2008-06-13 | 2009-03-18 | 江苏和亿昌环保有限公司 | Desulfuration absorbing tower with dual-tower structure |
| CN101745305A (en) * | 2010-01-24 | 2010-06-23 | 华北电力大学(保定) | A method for removing gaseous multiple pollutants in flue gas |
| CN202762303U (en) * | 2012-09-04 | 2013-03-06 | 中电投远达环保工程有限公司 | Desulfurization system of bi-circulating U-shaped tower |
| CN203750406U (en) * | 2014-01-18 | 2014-08-06 | 西安西热锅炉环保工程有限公司 | Fair current tower-countercurrent tower cascaded smoke desulfurization device |
-
2014
- 2014-01-18 CN CN201410023478.6A patent/CN103831006A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0496295A1 (en) * | 1991-01-22 | 1992-07-29 | Mitsubishi Jukogyo Kabushiki Kaisha | High-Performance flue-gas desulfurization process and apparatus |
| JPH0716424A (en) * | 1993-06-23 | 1995-01-20 | Mitsubishi Heavy Ind Ltd | Method and device for desulfurizing high concentration sulfur dioxide containing gas |
| CN1958131A (en) * | 2006-10-09 | 2007-05-09 | 西安交通大学 | Gas-liquid contacting response operator of fluid curtain bed |
| CN201208544Y (en) * | 2008-06-13 | 2009-03-18 | 江苏和亿昌环保有限公司 | Desulfuration absorbing tower with dual-tower structure |
| CN101745305A (en) * | 2010-01-24 | 2010-06-23 | 华北电力大学(保定) | A method for removing gaseous multiple pollutants in flue gas |
| CN202762303U (en) * | 2012-09-04 | 2013-03-06 | 中电投远达环保工程有限公司 | Desulfurization system of bi-circulating U-shaped tower |
| CN203750406U (en) * | 2014-01-18 | 2014-08-06 | 西安西热锅炉环保工程有限公司 | Fair current tower-countercurrent tower cascaded smoke desulfurization device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106166434A (en) * | 2016-07-21 | 2016-11-30 | 浙江天地环保科技有限公司 | A kind of ozone oxidation double tower ammonia process of desulfurization denitrating technique and system thereof |
| CN106166434B (en) * | 2016-07-21 | 2018-11-27 | 浙江天地环保科技有限公司 | A kind of ozone oxidation double tower ammonia process of desulfurization denitrating technique and its system |
| CN107952365A (en) * | 2017-12-01 | 2018-04-24 | 中国电建集团河北省电力勘测设计研究院有限公司 | A kind of high-temperature flue gas evaporation desulfurizing waste water processing device and its processing method |
| CN107952365B (en) * | 2017-12-01 | 2024-05-10 | 中国电建集团河北省电力勘测设计研究院有限公司 | High-temperature flue gas evaporation desulfurization wastewater treatment device and treatment method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103908879B (en) | A kind of Two-way Cycle Wen rod tower flue gas dusting and desulfuring system | |
| CN204412025U (en) | A kind of lower resistance, biabsorption efficient desulfurizing tower | |
| CN104399367B (en) | A kind of flue washing device with scaling shape orifice plate | |
| CN202606007U (en) | Ammonia desulfurization and denitrification tower | |
| CN205084558U (en) | Flue gas two -stage condensation dust collector after desulfurization | |
| CN203507730U (en) | Wet-method dust removal tail-gas purifying tower | |
| CN101342454B (en) | Rotational flow and spray combined desulfurizing device | |
| CN101584957B (en) | Flue gas desulfurization and dust removal integrated coupling device | |
| CN204320092U (en) | A kind of flue gas washing mechanism with convergent-divergent shape orifice plate | |
| CN204193780U (en) | A kind of high-efficiency desulfurization absorption tower | |
| CN101474535A (en) | Rectifying desulphurization system | |
| CN205288080U (en) | Wet desulfurization dust removal defogging integration ultra -clean discharging equipment | |
| CN103831006A (en) | Novel downstream tower-countercurrent tower series-connected flue gas desulphurization apparatus | |
| CN203750406U (en) | Fair current tower-countercurrent tower cascaded smoke desulfurization device | |
| CN201300034Y (en) | Vortex-sprinkling combined desulphurizing device | |
| CN205007843U (en) | Desulfurated absorption tower of magnesium method | |
| CN206229146U (en) | A kind of rotational flow and spray combination unit of efficient desulfurizing and dust collecting | |
| CN206444443U (en) | A kind of adjustable window shutter formula desulfuration absorbing tower structure | |
| CN205073874U (en) | Desulfurization absorption tower with reducing dust removal demisting section | |
| CN201454391U (en) | Flue gas wet desulfurization absorption tower | |
| CN204543977U (en) | A kind of absorption tower with vortex-flow and defrosting plate | |
| CN205127725U (en) | Novel reducing desulfurization absorption tower | |
| CN204429065U (en) | A kind of low particle diameter flue gas swirling flow atomizing deep desulfuration device | |
| CN204469534U (en) | A kind of Two-way Cycle is turned back absorption tower | |
| CN206229112U (en) | A kind of cross-current type dust-removing desulfurizing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140604 |