CN2761251Y - Smoke desulfurization device using underflow bialkali method - Google Patents
Smoke desulfurization device using underflow bialkali method Download PDFInfo
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- CN2761251Y CN2761251Y CN 200520100110 CN200520100110U CN2761251Y CN 2761251 Y CN2761251 Y CN 2761251Y CN 200520100110 CN200520100110 CN 200520100110 CN 200520100110 U CN200520100110 U CN 200520100110U CN 2761251 Y CN2761251 Y CN 2761251Y
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- pool
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- pump
- absorption tower
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Abstract
The utility model discloses a smoke gas desulfurization device using a concentrated alkali double-alkali method, which comprises an absorption tower, a pool in front of a pump, a circulating pump, a clarification pool and a regeneration pool, wherein the absorption tower is provided with a washing device and a demisting plate, and a desulfurization liquid output pipeline at the bottom part of the absorption tower is communicated with the pool in front of a pump. The outlet flowing pipeline of the pool in front of a pump is divided into two paths by the back pipeline of the circulating pump, one path is communicated with the top part of the absorption tower, and the other path is communicated with the regeneration pool. The upper part of the regeneration pool is communicated with a lime bucket, the regeneration pool is communicated with the clarification pool, and the upper part of the clarification pool is provided with a pipeline which is communicated with the pool in front of a pump. The pipeline arrangement of the utility model adopts a double circulation pipeline, can effectively reduce the volume of the regeneration pool and the clarification pool to 70% to 90%. The utility model can be used under the condition that a field is not wide enough. Simultaneously, compared with a previous device using a dilute alkali double-alkali method, the utility model increases desulfurization efficiency by about 5% to 20%, and the desulfurization efficiency can reach over 95%.
Description
Technical field
The utility model relates to a kind of flue gas desulfur device, especially relates to a kind of concentrated base dual alkali scrubbing FGD process device.
Background technology
Along with the raising of people to sulfur dioxide and dust pollution understanding, some places have come into effect strict emission control standards, not only require the original discharge concentration of the sulfur dioxide of flue gas to be lower than 650mg/Nm
3, and require sulfur dioxide in flue gas content after treatment must be lower than 150mg/Nm
3, dust must be lower than 50mg/Nm
3In this case, dry type desulfurizing and dust arrester often can't realize or operation, investment cost high.
Double alkali method desulfurizing technology is often adopted by middle-size and small-size system in the common at present employing wet method sulphur removing and dust removing technology.Double alkali method desulfurizing technology is that first alkaline clear liquid with solubility absorbs SO as absorbent in king-tower
2, at tower external application milk of lime or lime absorption liquid is regenerated then.Two alkaline process are divided into the two alkaline process of Sodium, calcium-calcium dual alkali, alkaline aluminum sulfate-gypsum method, ammonia-gypsum method etc. again, what the device of this type of technology all adopted is the single cycle pipeline, be that absorption liquid comes out to arrive first regeneration reactor regeneration from absorber, after go thickening, separation, softening, the clear liquid after the regeneration turns back to desulfurization in the absorber.This process pipeline is simple, but because the absorption liquid that advances tower is transferred to regenerated reactor regeneration after coming out fully, causes regenerated reactor and depositing reservoir floor space big, makes the application of this device be subjected to the place restriction.
Summary of the invention
The utility model provides a kind of concentrated base dual alkali scrubbing FGD process device, can reduce the internal circulating load of slurries when increasing desulfuration efficiency, reduces the regeneration amount of slurries, significantly reduces the floor space of regenerated reactor and depositing reservoir.
A kind of concentrated base dual alkali scrubbing FGD process device, comprise absorption tower, pump forebay, circulating pump, depositing reservoir and regenerated reactor, be provided with washer and demist plate in the absorption tower, the doctor solution output pipe of absorption tower bottom is communicated with the pump forebay, and the pipeline of the outlet outflow pipeline of pump forebay after by circulating pump is divided into two-way, and one the tunnel is communicated with the top on absorption tower, another road is communicated with regenerated reactor, regenerated reactor top is communicated with the lime bucket, and regenerated reactor is communicated with depositing reservoir, and depositing reservoir top is provided with pipeline and is communicated with the pump forebay.
Pipe-line layout of the present utility model adopts two circulation lines, and is slightly more complicated than single cycle pipeline, but can effectively reduce the floor space of regenerated reactor and depositing reservoir, and this device can use under the space is insufficient well-to-do condition, and has improved desulfuration efficiency.This device on-road efficiency is remarkable, according to measuring and calculating, can effectively reduce regenerated reactor and the depositing reservoir volume reaches 70-90%.The two alkaline process devices of the comparable existing diluted alkaline of the utility model device improve the about 5-20% of desulfuration efficiency, and desulfuration efficiency can reach more than 95%; If will reach identical desulfuration efficiency can reduce liquid-gas ratio, effectively reduce the operating cost of desulfurization.
Description of drawings
Fig. 1 is an apparatus structure schematic diagram of the present utility model.
The specific embodiment
As shown in Figure 1, a kind of concentrated base dual alkali scrubbing FGD process device, comprise absorption tower 14, pump forebay 2, circulating pump 3, depositing reservoir 7 and regenerated reactor 13, be provided with washer 15 and demist plate 16 in the absorption tower 14, the doctor solution output pipe 1 of 14 bottoms, absorption tower is communicated with pump forebay 2, the outlet of pump forebay 2 is flowed out the pipeline 8 of pipeline after by circulating pump 3 and is divided into two-way, one the tunnel 10 is communicated with the top on absorption tower 14, another road 9 is communicated with regenerated reactor 13, regenerated reactor 13 tops are communicated with lime bucket 11, regenerated reactor 13 is communicated with depositing reservoir 7, and depositing reservoir 7 tops are provided with pipeline 5 and are communicated with pump forebay 2.
During use, sulfur-containing smoke gas enters absorption tower 14, and by drawing from top after absorber 15 and 16 desulfurization of demist plate after smoke stack emission, absorption tower 14 can be plate columns such as rotating stream tray scrubber, sieve-plate tower, bubble column and packed tower, venturi, spray column etc.; The absorption liquid of 14 bottoms, absorption tower is controlled by tank level control system.Absorption liquid is by pipeline 1 inflow pump forebay 2, the absorption liquid that flows out from the outlet of pump forebay 2 is divided into two-way by circulating pump 3, the top that one road absorption liquid direct cycles to absorption tower 14 is used for desulfurization, another road absorption liquid is sent in the regenerated reactor 13 regenerates with milk of lime in the lime bucket 11 or lime, absorption liquid after the regeneration is sent to thickening in the depositing reservoir 7, separation, being re-used as fresh absorption liquid sends back in the pump forebay 2, add in the pump forebay 2 and replenish alkali lye 4, additional alkali can be soda ash, caustic soda or salkali waste; The desulfurization slag 6 of precipitation is discharged separately in the depositing reservoir 7.
Claims (1)
1. concentrated base dual alkali scrubbing FGD process device, comprise absorption tower (14), pump forebay (2), circulating pump (3), depositing reservoir (7) and regenerated reactor (13), be provided with washer (15) and demist plate (16) in the absorption tower (14), it is characterized in that: the doctor solution output pipe (1) of absorption tower (14) bottom is communicated with pump forebay (2), the outlet of pump forebay (2) is flowed out the pipeline (8) of pipeline after by circulating pump (3) and is divided into two-way, one the tunnel (10) is communicated with the top of absorption tower (14), another road (9) is communicated with regenerated reactor (13), regenerated reactor (13) top is communicated with lime bucket (11), regenerated reactor (13) is communicated with depositing reservoir (7), and depositing reservoir (7) top is provided with pipeline (5) and is communicated with pump forebay (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520100110 CN2761251Y (en) | 2005-01-14 | 2005-01-14 | Smoke desulfurization device using underflow bialkali method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520100110 CN2761251Y (en) | 2005-01-14 | 2005-01-14 | Smoke desulfurization device using underflow bialkali method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2761251Y true CN2761251Y (en) | 2006-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520100110 Expired - Lifetime CN2761251Y (en) | 2005-01-14 | 2005-01-14 | Smoke desulfurization device using underflow bialkali method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2761251Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100486673C (en) * | 2007-06-06 | 2009-05-13 | 中电投远达环保工程有限公司 | Adsorption tower smoke directly ventilating technology |
| CN101879406A (en) * | 2010-07-15 | 2010-11-10 | 煤炭工业济南设计研究院有限公司 | Dual-alkali flue gas desulfurization device and desulfurization method |
| CN106823712A (en) * | 2017-02-16 | 2017-06-13 | 上海银沃环保科技有限公司 | Double de- Dual-alkali smoke desulfurization devices and method |
| CN107008121A (en) * | 2017-05-24 | 2017-08-04 | 中国华电集团科学技术研究总院有限公司 | A kind of flue gas removal sulfur dioxide method and device |
| CN110975568A (en) * | 2019-11-27 | 2020-04-10 | 惠生（南通）重工有限公司 | Utilize boats and ships exhaust-gas treatment system of PCHE vaporizer cooling |
-
2005
- 2005-01-14 CN CN 200520100110 patent/CN2761251Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100486673C (en) * | 2007-06-06 | 2009-05-13 | 中电投远达环保工程有限公司 | Adsorption tower smoke directly ventilating technology |
| CN101879406A (en) * | 2010-07-15 | 2010-11-10 | 煤炭工业济南设计研究院有限公司 | Dual-alkali flue gas desulfurization device and desulfurization method |
| CN106823712A (en) * | 2017-02-16 | 2017-06-13 | 上海银沃环保科技有限公司 | Double de- Dual-alkali smoke desulfurization devices and method |
| CN107008121A (en) * | 2017-05-24 | 2017-08-04 | 中国华电集团科学技术研究总院有限公司 | A kind of flue gas removal sulfur dioxide method and device |
| CN110975568A (en) * | 2019-11-27 | 2020-04-10 | 惠生（南通）重工有限公司 | Utilize boats and ships exhaust-gas treatment system of PCHE vaporizer cooling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG TIANLAN ENVIRONMENTAL PROTECTION TECHNOLO Free format text: FORMER OWNER: ZHEJIANG UNIVERSITY Effective date: 20110222 Free format text: FORMER OWNER: ZHEJIANG TIANLAN ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD. WU ZHONGBIAO |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C56 | Change in the name or address of the patentee | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 310027 NO. 38, ZHEDA ROAD, HANGZHOU CITY, ZHEJIANG PROVINCE TO: 311202 XINGYI VILLAGE, BEIGAN SUBDISTRICT, XIAOSHAN DISTRICT, HANGZHOU CITY, ZHEJIANG PROVINCE |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 310027 Hangzhou, Zhejiang Province, Zhejiang Road, No. 38 Co-patentee after: ZHEJIANG TIANLAN ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Patentee after: ZHEJIANG University Co-patentee after: Wu Zhongbiao Address before: 310027 Hangzhou, Zhejiang Province, Zhejiang Road, No. 38 Co-patentee before: Zhejiang Tianlan Desulphurization & Dust-Removal Co.,Ltd. Patentee before: Zhejiang University Co-patentee before: Wu Zhongbiao |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110222 Address after: Hangzhou City, Zhejiang province Xiaoshan District 311202 North Street Xingyi Village Patentee after: ZHEJIANG TIANLAN ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Address before: 310027 Hangzhou, Zhejiang Province, Zhejiang Road, No. 38 Co-patentee before: ZHEJIANG TIANLAN ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Patentee before: Zhejiang University Co-patentee before: Wu Zhongbiao |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Hangzhou City, Zhejiang province Xiaoshan District 311202 North Street Xingyi Village Patentee after: ZHEJIANG TIANLAN ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Address before: Hangzhou City, Zhejiang province Xiaoshan District 311202 North Street Xingyi Village Patentee before: ZHEJIANG TIANLAN ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150114 Granted publication date: 20060301 |