CN203108418U - Wet process flue gas desulfurization and denitrification integrated device - Google Patents
Wet process flue gas desulfurization and denitrification integrated device Download PDFInfo
- Publication number
- CN203108418U CN203108418U CN 201320049454 CN201320049454U CN203108418U CN 203108418 U CN203108418 U CN 203108418U CN 201320049454 CN201320049454 CN 201320049454 CN 201320049454 U CN201320049454 U CN 201320049454U CN 203108418 U CN203108418 U CN 203108418U
- Authority
- CN
- China
- Prior art keywords
- denitration
- tower
- flue gas
- tower body
- hydrogen peroxide
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model provides a wet process flue gas desulfurization and denitrification integrated device which comprises a tower body and accessory devices outside the tower, wherein a seriflux tank is arranged at the bottom of a cavity in the tower body; a flue gas inlet is arranged on one side wall of the tower body and at an upper opening of the seriflux tank; multiple layers of desulfuration circulating shower pipes are arranged above the flue gas inlet; a tower partition plate (gas distributor) used for partitioning the tower cavity into desulfuration space and denitration space is arranged at the top of the desulfuration circulating shower pipes; a steel angle sieve tray and multiple layers of denitration circulating shower pipes are arranged in the denitration space; a demister and a demister flushing pipe are arranged above the steel angle sieve tray and the denitration circulating shower pipes; and a straight wet exhausting chimney, which serves as an outlet of the flue gas, is arranged at the top of the tower body. The wet process flue gas desulfurization and denitrification integrated device can perform desulfuration and denitration simultaneously in one tower, performs reaction at normal temperatures and pressures, and is particularly suitable for processing flue gas of a steel mill and exhaust gas with lower temperature.
Description
Technical field
The utility model relates to and belongs to environmental protection technical field, is a kind of wet process of FGD denitrification integrated device.
Background technology
China is coal-fired and iron and steel big producing country, and the discharging exhaust gas volumn is very huge, contains a large amount of oxysulfides and nitrogen oxide in the flue gas, and directly the discharging meeting causes serious pollution to atmosphere, the human normal life of influence and activity in production.Therefore controlling the pollution of sulfur dioxide and nitrogen oxide, is China and world today's problem demanding prompt solution, is protection environment and the urgent task that promotes the well-being of mankind.
At present, flue gas desulfurization and denitrification is all exploitations separately generally, form independently technical system and technological process separately, also use independently consersion unit, cause whole flue gas purification system complexity, floor space is big, the operating cost height, desulfurization and denitrification apparatus reasonable combination how independently simultaneously, efficient operation has great difficulty.
Country is more and more higher to the denitration requirement of various industries at present, and power plant's denitration now is like a raging fire, and steel mill also requires denitration comprehensively during 13, reduces the discharge capacity of NOx comprehensively.Steel mill's nitrogen oxide mainly contains nitric oxide and nitrogen dioxide, and wherein nitric oxide production content accounts for about 90%, and nitric oxide is insoluble in water, and it is bigger to remove difficulty.The denitrating flue gas engineering of power plant's operation at present is many, mainly can be divided into methods such as SCR, SNCR, activated carbon combined desulfurization and denitrification by its denitrating technique.SCR is the most ripe current method of denitration, denitration efficiency is higher, but its initial outlay is bigger, the operating cost height, and need under 320-400 ℃ hot conditions, could react, if handle low-temperature flue gas, need to increase bringing-up section, increased investment and operation power consumption greatly, the poisoning problem of SCR catalyst also is a difficult problem in industry such as metallurgy sintered at present simultaneously.
Because the flue gas of industry such as metallurgy sintered has its cigarette temperature low (about 100-160 ℃), exhaust gas volumn changes the characteristics that wait greatly, it is bigger that conventional method of denitration should use difficulty in steel mill, selects a kind of normal temperature and pressure reaction, desulphurization denitration, economically feasible, scheme easy to maintenance, simple to operate are the targets that current whole industry is made great efforts simultaneously.
The utility model content
The technical problems to be solved in the utility model is at existing technical deficiency, provides a kind of rational in infrastructure, and technological process is simple, denitrification efficiency height, the device of the wet process of FGD denitrification integral that input and operating cost are low.
The wet process of FGD denitrification integrated device, comprise the outer subsidiary body of tower body and tower, the intracavity bottom of described tower body is provided with the slurries pond, the tower body side-walls is provided with gas approach above the slurries pond, above gas approach, be provided with several pull-up sulfur cycle showers, the top of desulphurization circulating shower be provided with the tower body inner chamber be separated into desulfurization space and denitration space every column plate; Be provided with angle steel sieve tray and number pull-up nitre circulated sprinkling pipe in the denitration space, every pull-up nitre circulated sprinkling pipe is connected with the denitration circulatory pool by a corresponding with it slurry circulating pump respectively, is communicated with the denitration circulatory pool by discharging tube every column plate; Above denitration circulated sprinkling pipe, be furnished with demister and demister flusher; The tower body top is provided with in line wet chimney as the outlet of flue gas.
The outer subsidiary body of described tower comprises successively the accessory substance excavationg pump with slurries pond UNICOM, the final treatment system of accessory substance dewatering system and accessory substance; Also comprise the denitration auxiliary equipment, wherein the hydrogen peroxide storage tank is connected to the hydrogen peroxide thinning tank by the hydrogen peroxide dilution pumps, the hydrogen peroxide thinning tank connects UV hydrogen peroxide transfer pump, and the UV hydrogen peroxide transfer pump other end is connected to the UV irradiator, and the UV irradiator links to each other with denitration circulated sprinkling pipe in the tower by pipeline.
Above-mentioned desulphurization circulating shower, denitration circulated sprinkling pipe, all be fixed on the inwall of tower body by each bracing frame every column plate, angle steel sieve tray, demister.
Adopt in the device of described wet process of FGD denitrification integral every column plate tower body wherein is divided into desulfurization section and denitration section, make housing structure reasonable, desulphurization denitration independently carries out, and avoids arranging independently denitrification apparatus, thereby has optimized layout, has saved the space.Because sulfur dioxide and hydrogen peroxide reactivity are higher than nitrogen oxide, for preventing the reaction of hydrogen peroxide and sulfur dioxide, generally can be arranged to double tower and arrange, but increase investment and operating cost so greatly.This is novel by reasonable Arrangement, in same tower, makes desulfurization section and denitration section independent reaction and since desulfurization section major part remove, thereby prevent from consuming oxidant because of oxidation sulfur dioxide, saved operating cost.Adopt the angle steel sieve tray, increase the gas-liquid contact area, improved mass-transfer efficiency.
Denitrating technique of the present utility model is by after the ultraviolet ray irradiation, produce the hydrogen peroxide of great amount of hydroxy group free radical as oxidant, the nitrogen oxide oxide is the solubility higher nitrogen oxides under liquid state, independently reacting with flue gas after desulfurization in the denitration zone simultaneously, by the alkali lye neutralization, generate nitrate by-products.This process is both easy denitrating technique effectively reduces investment and the operating cost of denitration project again, has remarkable economic efficiency and social benefit.
The device desulfuration efficiency of described wet process of FGD denitrification integral can reach more than 95%, and denitration efficiency can reach more than 75%.
The device of described wet process of FGD denitrification integral can react at normal temperatures and pressures, does not need flue gas is carried out heat temperature raising, has reduced cost and investment.
The device of described wet process of FGD denitrification integral is desulphurization denitration simultaneously, and desulfurization and denitration independently react in a tower, need not increase Benitration reactor, use same alkaline reaction agent to absorb simultaneously, and flow process is simple, and is easy to operate.
The device of described wet process of FGD denitrification integral is applicable to the reaction environment of the wet desulphurization of current extensive use, compares methods such as SCR, easier existing sulfur removal technology is transformed, and realizes the purpose of desulphurization denitration simultaneously.
In sum, the utility model device can be widely used in the desulphurization denitration of multiple industry different temperatures flue gases such as metallurgy, electric power, heating power, and the easiest and existing desulfur technology combines, and transforms, and has vast potential for future development.
Description of drawings
Fig. 1 is the structural representation of desulphurization denitration tower;
Indicate in the accompanying drawing 1, wherein: 1, gas approach, 2, the desulphurization denitration tower, 3, in line wet chimney, 4, desulfuration recycle pump, 5, the desulfurization spraying layer, 6, every column plate, 7, the angle steel sieve tray, 8, the denitration circulatory pool, 9, the denitration circulating pump, 10, the denitration spraying layer, 11, demister, 12, the demister cleaning hose, 13, the hydrogen peroxide storage tank, 14, the hydrogen peroxide dilution pumps, 15, the hydrogen peroxide thinning tank, 16, UV hydrogen peroxide transfer pump, 17, the UV irradiator, 18, the accessory substance excavationg pump, 19, the accessory substance dewatering system, 20, the final treatment system of accessory substance, 21, the slurries pond, 22, the nitrate by-products gathering-device.
The specific embodiment
Below in conjunction with the description of drawings specific embodiment of the present utility model:
By reference to the accompanying drawings 1, described in the utility model and the wet process of FGD denitrification integrated device, comprise tower body and auxiliary equipment thereof.The intracavity bottom of tower body is provided with the slurries pond, and tower body is provided with gas approach 1 above slurries pond 21, and the top of gas approach is provided with several pull-up sulphur spraying layers 5, is provided with above desulfurization spraying layer 5 every column plate 6, and desulfurization zone and denitration are distinguished.Be desulfurization zone below column plate, more than be the denitration district.Be provided with angle steel sieve tray 7 in the denitration space, be used for improving the gas-liquid contact area, increase denitration efficiency, angle steel sieve tray top is denitration spraying layer 10.Discharge by the wet chimney 3 of cat head after demister 11 dehydrations through the flue gas behind the desulphurization denitration.
Flue gas enters desulfurization and denitrification reaction tower 2 from gas approach 1, passes through desulfurization zone successively, behind column plate 6, denitration district, discharges via in line wet chimney 3, and desulfurization zone and denitration district be independent reaction separately.The alkali lye (calcium hydroxide, ammoniacal liquor, magnesium hydroxide, NaOH, potassium hydroxide etc.) of flue gas under the spray of desulfurization zone and desulfurization spraying layer reacts reverse and contacts, absorb most of sulfur dioxide in the flue gas, by the oxidation of oxidation unit in the slurries pond of reaction tower bottom, generate accessory substance sulfate then.Through post precipitation, discharge by the accessory substance excavationg pump, handle through dewatering system and final treatment system then.By after in the slurries pond, injecting alkali lye (calcium hydroxide, ammoniacal liquor, magnesium hydroxide, NaOH, potassium hydroxide etc.) and adjusting its pH value, reuse it through desulfuration recycle pump and carry out desulphurization reaction.The flue gas that removes most of oxysulfide and higher nitrogen oxides is by every column plate 6, enters the denitration district after uniform, carries out denitration reaction.The angle steel sieve tray 7 in denitration district can increase gas-liquid contact area and mass-transfer efficiency greatly, guarantees the denitration reaction time.The oxidant that the denitration district uses is from the outer denitration auxiliary equipment of tower.
Described smoke absorption system tower is provided with the denitration auxiliary equipment outward, the hydrogen peroxide of buying is stored in 13 li of hydrogen peroxide storage tanks, get to hydrogen peroxide thinning tank 15 by hydrogen peroxide dilution pumps 14, with the fresh water (FW) mixed diluting be 5% hydrogen peroxide, squeeze in the ultraviolet radiation device 17 by UV hydrogen peroxide transfer pump then, carry out the ultraviolet ray irradiation and produce hydroxyl radical free radical, directly enter the denitration circulation pipe through abundant postradiation hydrogen peroxide solution, add circular response.Nitrogen oxide in the flue gas and the ultraviolet postradiation hydrogen peroxide solution generation oxidation reaction of process, generate higher nitrogen oxides soluble in water, reacted denitration reaction liquid is every column plate 6(air sparger) collect, flow in the denitration circulatory pool by discharging tube, in the pond can with alkaline denitration nertralizer (calcium hydroxide, ammoniacal liquor, magnesium hydroxide, NaOH, potassium hydroxide etc.), the reaction of generation acid-base neutralization, the nitrate by-products of generation enter nitrate by-products gathering-device 22 and collect the back recycling.
, need carry out demist through demister because carrying a large amount of droplets through the clean flue gas behind the desulfurization and denitrification reaction, minimizing is to the corrosion of follow-up equipment with to the influence of environment.The demister periodic flushing prevents from stopping up, and the flue gas after desulfurization, denitration, demist is from line wet chimney 3 dischargings.
It should be noted that at last, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (2)
1. wet process of FGD denitrification integrated device, comprise the outer subsidiary body of tower body and tower, it is characterized in that, the intracavity bottom of described tower body is provided with the slurries pond, the tower body side-walls is provided with gas approach above the slurries pond, above gas approach, be provided with several pull-up sulfur cycle showers, the top of desulphurization circulating shower be provided with the tower body inner chamber be separated into desulfurization space and denitration space every column plate; Be provided with angle steel sieve tray and number pull-up nitre circulated sprinkling pipe in the denitration space, every pull-up nitre circulated sprinkling pipe is connected with the denitration circulatory pool by a corresponding with it slurry circulating pump respectively, is communicated with the denitration circulatory pool by discharging tube every column plate; Above denitration circulated sprinkling pipe, be furnished with demister and demister flusher; The tower body top is provided with in line wet chimney as the outlet of flue gas;
The outer subsidiary body of described tower comprises successively the accessory substance excavationg pump with slurries pond UNICOM, the final treatment system of accessory substance dewatering system and accessory substance; Also comprise the denitration auxiliary equipment, wherein the hydrogen peroxide storage tank is connected to the hydrogen peroxide thinning tank by the hydrogen peroxide dilution pumps, the hydrogen peroxide thinning tank connects UV hydrogen peroxide transfer pump, and the UV hydrogen peroxide transfer pump other end is connected to the UV irradiator, and the UV irradiator links to each other with denitration circulated sprinkling pipe in the tower by pipeline.
2. desulfurization and denitrification integral device according to claim 1 is characterized in that: above-mentioned desulphurization circulating shower, denitration circulated sprinkling pipe, all be fixed on the inwall of tower body by each bracing frame every column plate, angle steel sieve tray, demister.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320049454 CN203108418U (en) | 2013-01-30 | 2013-01-30 | Wet process flue gas desulfurization and denitrification integrated device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320049454 CN203108418U (en) | 2013-01-30 | 2013-01-30 | Wet process flue gas desulfurization and denitrification integrated device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203108418U true CN203108418U (en) | 2013-08-07 |
Family
ID=48888797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320049454 Expired - Fee Related CN203108418U (en) | 2013-01-30 | 2013-01-30 | Wet process flue gas desulfurization and denitrification integrated device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203108418U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104437051A (en) * | 2014-11-17 | 2015-03-25 | 傅明冲 | Wet desulphurization and denitrification system and method |
| CN104771919A (en) * | 2015-03-31 | 2015-07-15 | 佛山市三水宏源陶瓷企业有限公司 | Spray drying tower |
| CN105013315A (en) * | 2015-07-02 | 2015-11-04 | 南京东大能源工程设计院有限公司 | Wet method flue gas desulphurization denitration dedusting integration system |
| CN105311948A (en) * | 2014-07-30 | 2016-02-10 | 山西易通环保技术有限公司 | Multi-effect flue gas purification absorption tower |
| WO2016192274A1 (en) * | 2015-06-05 | 2016-12-08 | 童裳慧 | Flue gas treatment device and method |
| CN106693637A (en) * | 2016-12-26 | 2017-05-24 | 合肥天翔环境工程有限公司 | Wet desulfurization method in metallurgy of iron and steel |
| CN107303463A (en) * | 2016-04-25 | 2017-10-31 | 云南民族大学 | The innoxious removing low concentration of NO of high-gravity technologyxMethod |
| CN109260922A (en) * | 2018-11-28 | 2019-01-25 | 广东佳德环保科技有限公司 | A kind of Novel flue gas desulfurization and denitrification integral tower |
-
2013
- 2013-01-30 CN CN 201320049454 patent/CN203108418U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105311948A (en) * | 2014-07-30 | 2016-02-10 | 山西易通环保技术有限公司 | Multi-effect flue gas purification absorption tower |
| CN104437051A (en) * | 2014-11-17 | 2015-03-25 | 傅明冲 | Wet desulphurization and denitrification system and method |
| CN104437051B (en) * | 2014-11-17 | 2017-06-20 | 傅明冲 | A kind of wet desulphurization denitrating system and method |
| CN104771919A (en) * | 2015-03-31 | 2015-07-15 | 佛山市三水宏源陶瓷企业有限公司 | Spray drying tower |
| WO2016192274A1 (en) * | 2015-06-05 | 2016-12-08 | 童裳慧 | Flue gas treatment device and method |
| CN105013315A (en) * | 2015-07-02 | 2015-11-04 | 南京东大能源工程设计院有限公司 | Wet method flue gas desulphurization denitration dedusting integration system |
| CN107303463A (en) * | 2016-04-25 | 2017-10-31 | 云南民族大学 | The innoxious removing low concentration of NO of high-gravity technologyxMethod |
| CN106693637A (en) * | 2016-12-26 | 2017-05-24 | 合肥天翔环境工程有限公司 | Wet desulfurization method in metallurgy of iron and steel |
| CN109260922A (en) * | 2018-11-28 | 2019-01-25 | 广东佳德环保科技有限公司 | A kind of Novel flue gas desulfurization and denitrification integral tower |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203108418U (en) | Wet process flue gas desulfurization and denitrification integrated device | |
| CN102580496B (en) | Liquid-phase oxidation multistage absorbed flue gas desulfurization and denitrification technology and device | |
| US9370745B2 (en) | Flue gas-treating method and apparatus for treating acidic tail gas by using ammonia process | |
| EP2990096B1 (en) | Method and apparatus for treating acidic tail gas by using ammonia process | |
| CN203750390U (en) | Calcium and chlorine dioxide-based three-section flue gas simultaneous desulfurization and denitration system | |
| CN103349893B (en) | A kind of wet denitration method and apparatus | |
| CN207641266U (en) | Chlorine dioxide denitrification apparatus | |
| CN103801176A (en) | Flue gas denitration technology and flue gas denitration device implemented by combining ozonation and spraying cooling | |
| CN102908884B (en) | Method for purifying waste gas from production of purified terephthalic acid | |
| CN104258715A (en) | Technology for treating nitric oxide waste gas by urea treatment and treatment equipment | |
| CN103055672A (en) | Two-step oxidation-reduction flue gas denitration method | |
| CN203123795U (en) | Flue gas denitration device using ozone oxidation method | |
| CN105536467A (en) | Flue gas purification device and method combining photo-catalytic oxidization and double cyclic absorption | |
| CN202893175U (en) | Flue gas desulfurization and denitrification integrated device of sintering machine | |
| CN104056538B (en) | Flue gas purifying system and method with integration of desulfurization and denitrification | |
| CN103977664A (en) | Flue gas desulfurization, denitration and dust removal method | |
| CN201510842U (en) | Double-loop hollow tower spray and tower body demisting air flue integrating device | |
| CN203425707U (en) | Denitration device | |
| CN102614768B (en) | Desulfurization reactor device | |
| CN202387362U (en) | Semi-dry low temperature flue gas denitrification system | |
| CN103170232B (en) | A kind of integrating device of wet oxidation denitration | |
| CN206355802U (en) | A kind of hydrogen peroxide method flue gas desulfurization processing system | |
| CN203469782U (en) | Double-tower type smoke desulfurization and denitrification system taking ammonia water as desorption agent | |
| CN207899245U (en) | A kind of system of flue gas wet type combined desulfurization and denitration | |
| CN211514082U (en) | Low-temperature denitration device combining gas phase oxidation and dry absorption |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100080 Beijing Haidian District North Fourth Ring West Road, 67 Earth Science and technology building 1615 Patentee after: BEIJING ZHONGKE INNOVATION PARK TECHNOLOGY CO.,LTD. Address before: 100080 Beijing Haidian District North Fourth Ring West Road, 67 Earth Science and technology building 1615 Patentee before: Beijing Zhongke Innovation Park Environment Technology Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 100093 Beijing city Haidian District minzhuang Road No. 3 Building No. 11 Room 102 West Yuquan Huigu Patentee after: BEIJING ZHONGKE INNOVATION PARK TECHNOLOGY CO.,LTD. Address before: 100080 Beijing Haidian District North Fourth Ring West Road, 67 Earth Science and technology building 1615 Patentee before: BEIJING ZHONGKE INNOVATION PARK TECHNOLOGY CO.,LTD. |
|
| CP02 | Change in the address of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 Termination date: 20220130 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |