CN2899917Y - Smoke desulfurizing and denitrifying device by ammonia method - Google Patents
Smoke desulfurizing and denitrifying device by ammonia method Download PDFInfo
- Publication number
- CN2899917Y CN2899917Y CNU2006201160634U CN200620116063U CN2899917Y CN 2899917 Y CN2899917 Y CN 2899917Y CN U2006201160634 U CNU2006201160634 U CN U2006201160634U CN 200620116063 U CN200620116063 U CN 200620116063U CN 2899917 Y CN2899917 Y CN 2899917Y
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- flue gas
- absorption tower
- flue
- nitrogen rejection
- gas desulfurizing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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Abstract
The utility model discloses a ammonia process flue gas desulfurization and denitrification device which comprises a pre-washing device and a flue gas absorption device; wherein an interconnected connection flue is arranged between the pre-washing device and the flue gas absorption device. As the utility model adopts the design of the separation between a pre-washer and an absorption tower, the flue gas first gets the preliminary purification through the pre-washer to reach the suitable reaction temperature and then fully reacts with the purification liquid in the absorption tower, which improves the use ratio of ammonia purification liquid and the desorption efficiency of SO2 and nitrogen oxide; moreover, the pre-washer's one inner end near the air inlet flue is provided with a plurality of layers of spraying layers, each spraying layer is composed of a spray pipe and a nozzle arranged on the spray pipe, and the nozzle of each layer is interlaced, which guarantees that flue gas fully reacts with the purification liquid in the pre-washer in order to improve the use ratio of the ammonia purification liquid, reduce the ammonia consumption and ensure the purification effect of the flue gas.
Description
Technical field
The utility model relates to a kind of ammonia type flue gas desulfurizing nitrogen rejection facility of fire coal boiler fume being administered usefulness.
Background technology
In recent years, the ammonia type flue gas desulfurizing nitrogen rejection facility of domestic release adopts simple process processes such as completion method, spray-on process, washing method respectively, has only considered ammonia and SO
2Neutralization reaction, owing to reasons such as the structure that is subjected to the restriction of parts arranging structure form and take are incomplete, to have that ammonia consumption is high, equipment is perishable, SR is big, afterproduct reclaims difficult, floor space is big and problem such as flue gas with water, cause ammonia process of desulfurization denitride technology China's wide geographic area can't the large tracts of land popularization phenomenon.
The utility model content
The purpose of this utility model is to provide a kind of ammonia to consume low, easy, the effective ammonia type flue gas desulfurizing nitrogen rejection facility of gas cleaning of product recovery.
For achieving the above object, technical solution of the present utility model is:
A kind of ammonia type flue gas desulfurizing nitrogen rejection facility comprises pre-washing device and smoke absorption device, is provided with interconnective connection flue between pre-washing device and the smoke absorption device.
Further, described pre-washing device comprises the pre-wash device and is arranged at air inlet flue on the pre-wash device, described smoke absorption device comprises the absorption tower and is located at air outlet flue on the absorption tower that bottom, described absorption tower is provided with and is connected flue bottom described pre-wash device.
Further, be provided with the separated smoke heat exchanger between described air inlet flue and the air outlet flue.
Further, described pre-wash device below is provided with oxidation pond, and oxidation pond is provided with oxidation fan and oxidation pond is connected with sulfuric acid ammoniacal liquor accumulator tank.
Further, below, described absorption tower is provided with circulatory pool, and circulatory pool is provided with the biography liquid pipeline that is connected with pre-wash device and absorption tower respectively, and the end near circulatory pool on this biography liquid pipeline is provided with water circulating pump.
Further, the end near the air inlet flue in the described pre-wash device is provided with the several layers spraying layer, and each spraying layer is made up of jet pipe and the nozzle be located on the jet pipe respectively, and described jet pipe links to each other with described biography liquid pipeline.
Further, the interlaced setting of the nozzle of described every adjacent two layers.
Further, be disposed with several layers demister, several layers spraying layer and air deflector in the described absorption tower from top to bottom, this air deflector is located at below, described absorption tower, is connected the outlet flue top of flue.
Further, described each spraying layer comprises jet pipe respectively and is located at nozzle on the jet pipe, the interlaced setting of the jet pipe of every adjacent two layers.
Further, described air deflector is that 50 °-55 ° blade is formed by central shaft and some inclinations angle that circumferentially are distributed on this central shaft.
After adopting said structure, because the utility model adopts pre-wash device and absorption tower separate design, make flue gas obtain preliminary purification and reach suitable reaction temperature through the pre-wash device earlier, in the absorption tower, fully react again, improved the utilization rate and the SO of ammonia scavenging solution with scavenging solution
2Removal efficiency with nitrogen oxide; In addition, because the end near the air inlet flue in the described pre-wash device is provided with the several layers spraying layer, each spraying layer is made up of jet pipe and the nozzle be located on the jet pipe respectively, the nozzle of each layer is crisscross arranged, therefore guaranteed that flue gas fully contacts with scavenging solution in the pre-wash device, improve ammonia scavenging solution utilization rate, and be provided with several layers spraying layer and air deflector in the absorption tower, each spraying layer comprises jet pipe respectively and is located at nozzle on the jet pipe, the interlaced setting of the jet pipe of every adjacent two layers, make the flue gas after the preliminary purification in the absorption tower, behind air deflector, transfer eddy flow to earlier by eddy current, reach uniform purpose, again with ammonia absorption liquid contact-impact in air deflector blade scope, with top-down reverse contact of ammonia scavenging solution curtain that forms by spraying layer, fully mix again, reaction further improves ammonia scavenging solution utilization rate, reduce the ammonia consumption, guarantee the gas cleaning effect.And the separated smoke heat exchanger that is provided with between air inlet flue and the air outlet flue, temperature descends to some extent before making flue gas enter prewashing column, the flue gas that effluxes after simultaneously purification being finished heats up, flue gas is fit at pre-wash device interior reaction temperature, and need not other consumes energy, cut down the consumption of energy.In addition, oxidation pond and circulatory pool are arranged apart, and oxidation pond is provided with oxidation fan and liquid in the oxidation pond is blasted air oxidation handles, and be provided with the ammonium sulfate accumulator tank, it is convenient that the reaction afterproduct is reclaimed, and it is high to recycle value, non-secondary pollution.Device equipment needed thereby selection is general, low cost of manufacture, the apparatus system running resistance is little, scale problems does not take place, arrange compact, floor space is little.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the cross-sectional view on prewashing column of the present utility model and absorption tower.
The specific embodiment:
As shown in Figure 1, the utility model ammonia type flue gas desulfurizing nitrogen rejection facility comprises pre-washing device A and smoke absorption device B, pre-washing device A comprises pre-wash device 1 and is arranged at air inlet flue 2 on the pre-wash device 1, pre-wash device 1 below is provided with oxidation pond 3, smoke absorption device B comprises absorption tower 4, is located at the air outlet flue 5 on the absorption tower 4, the below, absorption tower is provided with circulatory pool 6, and air outlet flue 5 ends are connected with chimney 7, and the air outlet flue is provided with air-introduced machine 8; 4 bottoms, described absorption tower are provided with the interconnective flue 9 that is connected with pre-wash device 1 bottom, be provided with separated smoke heat exchanger 10 between air inlet flue 2 and the air outlet flue 5, circulatory pool 6 is provided with the biography liquid pipeline 11 that is connected with pre-wash device 1 and absorption tower 4 respectively, an end that passes close circulatory pool on the liquid pipeline 11 is provided with water circulating pump 12, and described oxidation pond 3 is provided with oxidation fan 13 and oxidation pond 3 is connected with sulfuric acid ammoniacal liquor accumulator tank 14.
As shown in Figure 2, end near the air inlet flue in the described pre-wash device 1 is provided with two-layer spraying layer 15, every spraying layer comprises jet pipe 151 respectively and is located at nozzle 152 on the jet pipe, jet pipe 152 on the two-layer spraying layer is interlaced, described jet pipe 151 links to each other with biography liquid pipeline 11, and described spraying layer 15 also can be provided with more than three layers or three layers as required, and the nozzle of every adjacent two layers is interlaced;
Be disposed with several layers demister 41, several layers spraying layer 42 and air deflector 43 in the described absorption tower 4 from top to bottom, and air deflector 43 is located at the below, absorption tower, is connected the outlet flue top of flue 9, described each spraying layer 42 comprises jet pipe respectively and is located at nozzle on the jet pipe, the jet pipe of every adjacent two layers is interlaced, and it is that 50 °-55 ° blade 431 is formed that described air deflector 43 circumferentially is distributed in inclination angle on this central shaft by air deflector central shaft and polylith;
Circulating pump 12 extracts circulation fluid from circulatory pool 6, via feed liquid pipeline 11, be delivered to the spraying layer in pre-wash device 1 and the absorption tower 4 respectively, contains SO
2At first be cooled to about 135 ℃ by air inlet flue 2 with the high-temperature flue gas of nitrogen oxide (among Fig. 1,2 shown in the arrow) through 10 heat exchange of separated smoke heat exchanger, then enter pre-wash device 1 again, cleaning solution co-flow with 15 ejections of spraying layer wherein, cool the temperature to about 90 ℃, reach final dusting simultaneously and remove a small amount of SO
2Effect with nitrogen oxide; Liquid comes together in oxidation pond 3 after pre-wash, flue gas then enters absorption tower 4 through connecting flue 9, in absorption tower 4, the flue gas air deflector 43 of at first flowing through, flue gas transfers eddy flow to by eddy current behind air deflector, reach uniform purpose, flue gas and ammonia absorption liquid be contact-impact in air deflector blade scope, follow flue gas and top-down reverse contact of liquid curtain that forms by spraying layer 42, mix, reaction, finish main desulfurization removing nitric process, the ammonium sulfate of generation comes together in circulatory pool, and a part continues to recycle after adding NH3 adjustment pH value, another part comes together in oxidation pond as cleaning solution, after containing 41 demists of wet flue gas process demister, enter air outlet flue 5, enter atmosphere through the 10 heat exchange intensifications of separated smoke heat exchanger after air-introduced machine 8 imports chimneys 7 again from the upper end, absorption tower, so far, flue gas is desulfurized the denitrogenation purification.
Claims (10)
1, a kind of ammonia type flue gas desulfurizing nitrogen rejection facility is characterized in that, comprises pre-washing device and smoke absorption device, is provided with interconnective connection flue between pre-washing device and the smoke absorption device.
2, ammonia type flue gas desulfurizing nitrogen rejection facility as claimed in claim 1, it is characterized in that, described pre-washing device comprises the pre-wash device and is arranged at air inlet flue on the pre-wash device, described smoke absorption device comprises the absorption tower and is located at air outlet flue on the absorption tower that bottom, described absorption tower is provided with and is connected flue bottom described pre-wash device.
3, ammonia type flue gas desulfurizing nitrogen rejection facility as claimed in claim 2 is characterized in that, is provided with the separated smoke heat exchanger between described air inlet flue and the air outlet flue.
4, ammonia type flue gas desulfurizing nitrogen rejection facility as claimed in claim 2 is characterized in that, described pre-wash device below is provided with oxidation pond, and oxidation pond is provided with oxidation fan and oxidation pond is connected with sulfuric acid ammoniacal liquor accumulator tank.
5, ammonia type flue gas desulfurizing nitrogen rejection facility as claimed in claim 2, it is characterized in that, below, described absorption tower is provided with circulatory pool, and circulatory pool is provided with the biography liquid pipeline that is connected with pre-wash device and absorption tower respectively, and the end near circulatory pool on this biography liquid pipeline is provided with water circulating pump.
6, ammonia type flue gas desulfurizing nitrogen rejection facility as claimed in claim 5, it is characterized in that, end near the air inlet flue in the described pre-wash device is provided with the several layers spraying layer, and each spraying layer is made up of jet pipe and the nozzle be located on the jet pipe respectively, and described jet pipe links to each other with described biography liquid pipeline.
7, ammonia type flue gas desulfurizing nitrogen rejection facility as claimed in claim 6 is characterized in that, the interlaced setting of the nozzle of described every adjacent two layers.
8, ammonia type flue gas desulfurizing nitrogen rejection facility as claimed in claim 5, it is characterized in that, be disposed with several layers demister, several layers spraying layer and air deflector in the described absorption tower from top to bottom, this air deflector is located at below, described absorption tower, is connected the outlet flue top of flue.
9, ammonia type flue gas desulfurizing nitrogen rejection facility as claimed in claim 8 is characterized in that, described each spraying layer comprises jet pipe respectively and is located at nozzle on the jet pipe, the interlaced setting of the jet pipe of every adjacent two layers.
10, ammonia type flue gas desulfurizing nitrogen rejection facility as claimed in claim 8 is characterized in that, described air deflector is that 50 °-55 ° blade is formed by central shaft and some inclinations angle that circumferentially are distributed on this central shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201160634U CN2899917Y (en) | 2006-05-25 | 2006-05-25 | Smoke desulfurizing and denitrifying device by ammonia method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201160634U CN2899917Y (en) | 2006-05-25 | 2006-05-25 | Smoke desulfurizing and denitrifying device by ammonia method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2899917Y true CN2899917Y (en) | 2007-05-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2006201160634U Expired - Fee Related CN2899917Y (en) | 2006-05-25 | 2006-05-25 | Smoke desulfurizing and denitrifying device by ammonia method |
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| CN (1) | CN2899917Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101670231B (en) * | 2009-07-23 | 2011-08-24 | 何金整 | Device and process for converting calcium process desulfurization into temperature difference crystallizing ammonia process desulfurization |
| CN101301574B (en) * | 2008-01-18 | 2011-09-14 | 北京博奇电力科技有限公司 | Multistage flue gas desulfurization spray tower |
| CN103041678A (en) * | 2012-12-21 | 2013-04-17 | 浙江天蓝环保技术股份有限公司 | Ammonia flue gas desulfuration and denitration combined process and device |
| CN104971608A (en) * | 2015-07-01 | 2015-10-14 | 汤荣康 | Synergy-method U-shaped integrated desulfurization denitration dedusting complete equipment |
| CN105194956A (en) * | 2015-09-30 | 2015-12-30 | 苏州韵蓝环保科技有限公司 | Waste gas washing tower |
| CN105363341A (en) * | 2015-12-15 | 2016-03-02 | 天津一橙泽恒环保科技发展有限公司 | Flue gas treatment device |
| CN107803101A (en) * | 2017-10-31 | 2018-03-16 | 中国三冶集团有限公司宁波分公司 | The manufacturing process of fume desulfurating absorption tower structure and absorption tower body |
| CN109794157A (en) * | 2018-12-28 | 2019-05-24 | 苏州艾特斯环保设备有限公司 | A kind of incineration flue gas wet process deacidifying device and deacidifying flue gas technique |
-
2006
- 2006-05-25 CN CNU2006201160634U patent/CN2899917Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101301574B (en) * | 2008-01-18 | 2011-09-14 | 北京博奇电力科技有限公司 | Multistage flue gas desulfurization spray tower |
| CN101670231B (en) * | 2009-07-23 | 2011-08-24 | 何金整 | Device and process for converting calcium process desulfurization into temperature difference crystallizing ammonia process desulfurization |
| CN103041678A (en) * | 2012-12-21 | 2013-04-17 | 浙江天蓝环保技术股份有限公司 | Ammonia flue gas desulfuration and denitration combined process and device |
| CN104971608A (en) * | 2015-07-01 | 2015-10-14 | 汤荣康 | Synergy-method U-shaped integrated desulfurization denitration dedusting complete equipment |
| CN105194956A (en) * | 2015-09-30 | 2015-12-30 | 苏州韵蓝环保科技有限公司 | Waste gas washing tower |
| CN105363341A (en) * | 2015-12-15 | 2016-03-02 | 天津一橙泽恒环保科技发展有限公司 | Flue gas treatment device |
| CN107803101A (en) * | 2017-10-31 | 2018-03-16 | 中国三冶集团有限公司宁波分公司 | The manufacturing process of fume desulfurating absorption tower structure and absorption tower body |
| CN107803101B (en) * | 2017-10-31 | 2019-10-01 | 中国三冶集团有限公司宁波分公司 | The manufacturing process of fume desulfurating absorption tower structure and absorption tower ontology |
| CN109794157A (en) * | 2018-12-28 | 2019-05-24 | 苏州艾特斯环保设备有限公司 | A kind of incineration flue gas wet process deacidifying device and deacidifying flue gas technique |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |