CN202823161U - U-shaped combined wet desulphurization device - Google Patents
U-shaped combined wet desulphurization device Download PDFInfo
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- CN202823161U CN202823161U CN201220478332.7U CN201220478332U CN202823161U CN 202823161 U CN202823161 U CN 202823161U CN 201220478332 U CN201220478332 U CN 201220478332U CN 202823161 U CN202823161 U CN 202823161U
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- absorption tower
- flue gas
- shower
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- shaped absorption
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Abstract
The utility model discloses a U-shaped combined wet desulphurization device which comprises a one-stage liquid column spraying pipe, a two-stage spraying pipe, a circulating pump, a stirrer, an oxidation air blower, a limestone slurry pump, a gypsum discharging pump, a process water spraying pipe, a demister and a U-shaped absorption tower; firstly flue gas is in countercurrent contact with a liquid column sprayed by a sprayer of the one-stage liquid column spraying pipe at the left side of the U-shaped absorption tower, and then enters the right side of the U-shaped absorption tower, and is in countercurrent contact with fine micro drops formed by atomization by a sprayer of the two-stage spraying pipe so as to complete flue gas desulphurization; purified flue gas removes fine liquid drops in the flue gas, and dehumidified flue gas is discharged from a flue gas outlet at the top of the U-shaped absorption tower. The device has the characteristics of appearance size reduction, circulating pump flow rate stroke reduction, energy consumption reduction, cost conservation, simple structure, good desulphurization effect and the like.
Description
Technical field
The utility model belongs to coal-fired plant flue gas purification techniques field, and is particularly a kind of for Wet FGD, i.e. U-shaped compound wet desulphurization device.
Background technology
In the conventional wet desulfurizer, although flue gas and absorption liquid counter current contacting, gas residence time is shorter, causes gas-liquid contact time shorter, and mass transfer effect does not reach expection.In order to improve the desulfuration efficiency on gas-liquid mass transfer effect and absorption tower, transform prior device as U-shaped compound wet desulphurization device, increase liquid gas contact probability, strengthen mass-transfer progress, make the SO in the flue gas
2Be easy to be diffused in the slurries and be removed, reach as far as possible very high desulfuration efficiency, remove simultaneously oarse-grained dust, reach the purpose of flue gas ash removal, desulfurization.
In the conventional wet desulfurizer, absorption tower appearance and size, liquid-gas ratio and pump flow lift are all larger, and energy consumption is higher simultaneously, and cost must increase.
The utility model content
The purpose of this utility model is for the deficiencies in the prior art, and a kind of U-shaped compound wet desulphurization device is provided; This device can greatly improve the efficient of flue gas desulfurization.
The purpose of this utility model is achieved through the following technical solutions: a kind of U-shaped compound wet desulphurization device, it is characterized in that, it comprises: one-level fluid column shower, secondary shower, circulating pump, agitator, oxidation fan, limestone slurry liquid pump, gypsum excavationg pump, fresh water (FW) shower, demister and U-shaped absorption tower; Wherein, an end top on U-shaped absorption tower has smoke inlet, and other end top has exhanst gas outlet; One-level fluid column shower is installed in the smoke inlet below, and the exhanst gas outlet below is installed demister and secondary shower from top to bottom successively; Demister is divided into up and down two unit, upper and lower with the lower floor unit below the demister upper unit is furnished with respectively the fresh water (FW) shower, one-level fluid column shower links to each other with the bottom on U-shaped absorption tower by a circulating pump, and every shower of secondary shower respectively links to each other with the bottom on U-shaped absorption tower by a circulating pump; Oxidation fan, limestone slurry liquid pump and gypsum excavationg pump all link to each other with the bottom on U-shaped absorption tower.
The beneficial effects of the utility model are:
1, effectively improved smoke desulfurization efficiency, the scrap build investment is little, and the operation operating cost is low, and operation is simple, stable, meets national project designing requirement and relevant criterion.
2, one-level fluid column spray section (left side on U-shaped absorption tower) is upwards sprayed by one-level fluid column shower, form some fluid columns that cover overall absorption tower section, flue gas carries out once the reverse washing that contacts with slurries this moment, mutually collide again in the process that slurries fall after scattering in the fluid column top naturally and form firm density particulate, flue gas contacts washing again with slurries, finish thus the overall process of flue gas and slurries Dual-contack, slurries contact with flue gas for twice when rising and fall and carry out desulfurization, slurries are longer in the reaction zone time of staying, the slurries of the liquid that falls and upwards ejection collide a large amount of drop of formation in tower mutually, greatly improve the contact area of gas-liquid, therefore had high desulfuration efficiency; Fluid column spray section crushing is lower than traditional spray column; The liquid that falls carries out from flushing shower and nozzle, non flouling behaviour, and the fluid column shower only has one deck, and maintenance is easily; Spray system adopts female pipe design, configures as required many socles lime stone slurry circulating pump, not limited by the separate unit pump flow; Because adopt without the pressure nozzle, so the design of fluid column spray section is applicable to more high solid granule density, is conducive to the raising of absorption efficiency, and can improves the quality of gypsum.Because it is lower that the fluid column shower is settled, the height on one-level fluid column spray section absorption tower can be lower than traditional absorption tower, and the lime stone slurry pump head is reduced, and this will reduce energy consumption.
3, SO
2Realize once removing in left side, U-shaped absorption tower, can make SO in the flue gas
2Content reduces (being adapted to especially sulphur coal) greatly, and the liquid-gas ratio in the secondary spray section (right side on U-shaped absorption tower) is with decrease like this.
4, owing to entering the interior SO of the flue gas on right side, U-shaped absorption tower
2Content reduces greatly, in the situation that exit concentration is constant, with making the minimizing of right side, U-shaped absorption tower sodalime stone slurries spraying layer quantity, has realized cost savings.
5, because U-shaped absorption tower right side SO
2The liquid-gas ratio of flue gas reduces, and will make the minimizing of lime stone recycle slurry liquid measure, thereby realizes a large amount of minimizings of nozzle quantity, realizes the reduction of nozzle purchase cost.The minimizing of the lime stone slurry spraying layer quantity on absorption tower will make the reduction of absorption tower height; The minimizing of lime stone slurry internal circulating load will decrease the height of absorbent body, and this can both realize the saving of cost.
6, because the absorption tower body diminishes, and required agitator quantity must tail off, thereby realize the reduction of purchase cost.Because the diminishing of absorption tower body, step-down, and enter SO in the flue gas on right side, absorption tower
2Concentration reduces, and oxidation fan flow and pressure head will be reduced, thereby realizes cost savings.
Description of drawings
Fig. 1 is structural representation of the present utility model:
Among the figure, smoke inlet 1, one-level fluid column shower 2, secondary shower 3, circulating pump 4, agitator 5, oxidation fan 6, limestone slurry liquid pump 7, gypsum excavationg pump 8, fresh water (FW) shower 9, demister 10, exhanst gas outlet 11, U-shaped absorption tower 12.
The specific embodiment
Further specify the utility model below in conjunction with the drawings and specific embodiments, it is more obvious that the purpose of this utility model and effect will become.
As shown in Figure 1, U-shaped compound wet desulphurization device of the present utility model comprises: one-level fluid column shower 2, secondary shower 3, circulating pump 4, agitator 5, oxidation fan 6, limestone slurry liquid pump 7, gypsum excavationg pump 8, fresh water (FW) shower 9, demister 10 and U-shaped absorption tower 12; Wherein, an end top on U-shaped absorption tower 12 has smoke inlet 1, and other end top has exhanst gas outlet 11; One-level fluid column shower 2 is installed in smoke inlet 1 below, and exhanst gas outlet 11 belows are installed demister 10 and secondary shower 3 from top to bottom successively; Demister 10 is divided into up and down two unit, distinguishes arrangement technology water sprayer tube 9 with the upper and lower of lower floor unit below demister 10 upper units; One-level fluid column shower 2 links to each other with the bottom on U-shaped absorption tower 12 by a circulating pump 4, and every shower of secondary shower 3 respectively links to each other with the bottom on U-shaped absorption tower 12 by a circulating pump 4; Oxidation fan 6, limestone slurry liquid pump 7 and gypsum excavationg pump 8 all link to each other with the bottom on U-shaped absorption tower 12.
The utility model use procedure is as follows: flue gas enters U-shaped absorption tower 12 from smoke inlet 1, at first in the fluid column counter current contacting of one-level fluid column spray section (left side on U-shaped absorption tower 12) with the ejection of one-level fluid column shower 2 nozzles, flue gas after the preliminary purification by one-level fluid column spray section out after, tangentially enter secondary spray section (right side on U-shaped absorption tower 12) by the bottom again, form the upwards operation of one air-flow, flue gas enters the tiny droplet counter current contacting that the secondary spray section becomes with 3 nozzle atomizations of secondary shower, finish the smoke secondary desulfurization, the fine drop that flue gas after the purification is removed in the flue gas through demister 10 is except wet flue gas is discharged from the exhanst gas outlet 11 at 12 tops, U-shaped absorption tower.
In one-level fluid column spray section, lime stone slurry contacts with flue gas adverse current via one-level fluid column shower 2 upward sprayings by circulating pump 4 circulations, carries out first desulfurization; In the secondary spray section, lime stone slurry contacts with flue gas adverse current via secondary shower 3 downward sprays by circulating pump 4 circulations, carries out secondary desulfuration; Flue gas after the purification is through demister 10 demists, except wet flue gas is discharged from the exhanst gas outlet 11 at 12 tops, U-shaped absorption tower; Fresh water (FW) shower 9 spray process water are removed the flue dust (preventing from stopping up) of holding back on the demister 10, and regulate U-shaped absorption tower 12 interior serum densities; Limestone slurry liquid pump 7 adds the absorption tower continuously with lime stone slurry, simultaneously the lime stone slurries in the U-shaped absorption tower 12 are stirred oxidation air and the absorption tower circulating pump 4 that device 5, oxidation fan 6 blow out and ceaselessly stir, to accelerate even distribution and the dissolving of lime stone in slurries, the SO in the flue gas
2, SO
3, HCl and HF absorb by lime stone slurry and remove; SO
2Gypsum slurries is finished and finally formed to the oxidation of absorption product and neutralization reaction in the zoneofoxidation of 12 bottoms, U-shaped absorption tower, and gypsum slurries is discharged U-shaped absorption tower 12 by gypsum excavationg pump 8.
Strong turbulence between the gas-liquid flows, and slurries segmentation spray can be realized increasing the gas-liquid contact area and prolong gas-liquid contact time, by the gas-liquid counter current type of flow, reaches the purpose of high efficient gas and liquid contact, mass transfer.
Claims (1)
1. a U-shaped compound wet desulphurization device is characterized in that, it comprises: one-level fluid column shower, secondary shower, circulating pump, agitator, oxidation fan, limestone slurry liquid pump, gypsum excavationg pump, fresh water (FW) shower, demister and U-shaped absorption tower; Wherein, an end top on U-shaped absorption tower has smoke inlet, and other end top has exhanst gas outlet; One-level fluid column shower is installed in the smoke inlet below, and the exhanst gas outlet below is installed demister and secondary shower from top to bottom successively; Demister is divided into up and down two unit, and the upper and lower with the lower floor unit below the demister upper unit is furnished with respectively the fresh water (FW) shower; One-level fluid column shower links to each other with the bottom on U-shaped absorption tower by a circulating pump, and every shower of secondary shower respectively links to each other with the bottom on U-shaped absorption tower by a circulating pump; Oxidation fan, limestone slurry liquid pump and gypsum excavationg pump all link to each other with the bottom on U-shaped absorption tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220478332.7U CN202823161U (en) | 2012-09-19 | 2012-09-19 | U-shaped combined wet desulphurization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220478332.7U CN202823161U (en) | 2012-09-19 | 2012-09-19 | U-shaped combined wet desulphurization device |
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| Publication Number | Publication Date |
|---|---|
| CN202823161U true CN202823161U (en) | 2013-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220478332.7U Expired - Lifetime CN202823161U (en) | 2012-09-19 | 2012-09-19 | U-shaped combined wet desulphurization device |
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| CN (1) | CN202823161U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104888583A (en) * | 2015-06-11 | 2015-09-09 | 中电投远达环保工程有限公司 | Capture and absorption tower for carbon dioxide in flue gas |
| CN104941434A (en) * | 2015-06-15 | 2015-09-30 | 重庆广播电视大学 | Flue gas purifying device |
| CN107008138A (en) * | 2017-04-14 | 2017-08-04 | 杭州瑞赛可环境工程有限公司 | For the odor removal of rubbish aerobic fermentation equipment tail gas |
| CN108837685A (en) * | 2018-07-26 | 2018-11-20 | 广东新生环保科技股份有限公司 | A kind of desulfurization end-o f-pipe -control purification device |
| CN108854455A (en) * | 2018-07-11 | 2018-11-23 | 苏州艾特斯环保设备有限公司 | A kind of high temperature and humidity flue gas wet process cooling humidity reduction method |
| CN109224772A (en) * | 2018-09-14 | 2019-01-18 | 董恬纲 | U-shaped double tower circulation hydraulic pressure difference is molten to release trapping CO2Device |
| CN109351149A (en) * | 2018-12-11 | 2019-02-19 | 青岛双瑞海洋环境工程股份有限公司 | Marine exhaust system for desulfuration and denitration |
| CN109952418A (en) * | 2016-10-28 | 2019-06-28 | 三星重工业株式会社 | Exhaust emission device |
| CN111841283A (en) * | 2020-07-31 | 2020-10-30 | 中冶焦耐(大连)工程技术有限公司 | AS tail gas washing device and method |
| CN113842763A (en) * | 2021-07-30 | 2021-12-28 | 四川省烟草公司凉山州公司 | Integrated smoke sulfur, nitrate and dust removing equipment and method |
| CN114588768A (en) * | 2022-03-22 | 2022-06-07 | 安徽鸿德玻璃钢环保设备有限公司 | Glass fiber reinforced plastic desulfurizing tower |
-
2012
- 2012-09-19 CN CN201220478332.7U patent/CN202823161U/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104888583A (en) * | 2015-06-11 | 2015-09-09 | 中电投远达环保工程有限公司 | Capture and absorption tower for carbon dioxide in flue gas |
| CN104941434A (en) * | 2015-06-15 | 2015-09-30 | 重庆广播电视大学 | Flue gas purifying device |
| CN109952418A (en) * | 2016-10-28 | 2019-06-28 | 三星重工业株式会社 | Exhaust emission device |
| CN107008138A (en) * | 2017-04-14 | 2017-08-04 | 杭州瑞赛可环境工程有限公司 | For the odor removal of rubbish aerobic fermentation equipment tail gas |
| CN108854455A (en) * | 2018-07-11 | 2018-11-23 | 苏州艾特斯环保设备有限公司 | A kind of high temperature and humidity flue gas wet process cooling humidity reduction method |
| CN108837685A (en) * | 2018-07-26 | 2018-11-20 | 广东新生环保科技股份有限公司 | A kind of desulfurization end-o f-pipe -control purification device |
| CN109224772B (en) * | 2018-09-14 | 2021-04-30 | 董恬纲 | U-shaped double-tower circulating liquid differential pressure dissolution release CO capture2Device for measuring the position of a moving object |
| CN109224772A (en) * | 2018-09-14 | 2019-01-18 | 董恬纲 | U-shaped double tower circulation hydraulic pressure difference is molten to release trapping CO2Device |
| CN109351149A (en) * | 2018-12-11 | 2019-02-19 | 青岛双瑞海洋环境工程股份有限公司 | Marine exhaust system for desulfuration and denitration |
| CN109351149B (en) * | 2018-12-11 | 2023-08-22 | 青岛双瑞海洋环境工程股份有限公司 | Ship exhaust gas desulfurization and denitrification system |
| CN111841283A (en) * | 2020-07-31 | 2020-10-30 | 中冶焦耐(大连)工程技术有限公司 | AS tail gas washing device and method |
| CN113842763A (en) * | 2021-07-30 | 2021-12-28 | 四川省烟草公司凉山州公司 | Integrated smoke sulfur, nitrate and dust removing equipment and method |
| CN114588768A (en) * | 2022-03-22 | 2022-06-07 | 安徽鸿德玻璃钢环保设备有限公司 | Glass fiber reinforced plastic desulfurizing tower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHEJIANG LANTIAN QIUSHI ENVIRONMENTAL PROTECTION C Free format text: FORMER NAME: ZHEJIANG ATMOSPHERE ENVIRONMENTAL PROTECTION GROUP CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Hangzhou City, Zhejiang province Xihu District 310012 teachers Road No. 23 building 21F bonaohui Technology Patentee after: ZHEJIANG ATMOSPHERE ENVIRONMENTAL PROTECTION CO.,LTD. Address before: Hangzhou City, Zhejiang province Xihu District 310012 teachers Road No. 23 building 21F bonaohui Technology Patentee before: ZHEJIANG ATMOSPHERE ENVIRONMENTAL PROTECTION GROUP Co.,Ltd. |
|
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Zhenliang Inventor after: Qian Dongsheng Inventor after: Shi Pingping Inventor after: Lv Zhichao Inventor after: Xie Fang Inventor after: Zhu Xiaoya Inventor after: Li Yun Inventor after: Yu Xiaowei Inventor before: Zhang Zhenliang Inventor before: Qian Dongsheng Inventor before: Shi Pingping Inventor before: Lv Zhichao Inventor before: Xie Fang Inventor before: Zhu Xiaoya Inventor before: Li Yun Inventor before: Yu Xiaowei |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130327 |
|
| CX01 | Expiry of patent term |