CN106512690A - Spiral flue gas desulphurization apparatus - Google Patents
Spiral flue gas desulphurization apparatus Download PDFInfo
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- CN106512690A CN106512690A CN201510608906.6A CN201510608906A CN106512690A CN 106512690 A CN106512690 A CN 106512690A CN 201510608906 A CN201510608906 A CN 201510608906A CN 106512690 A CN106512690 A CN 106512690A
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- flue gas
- gas desulfurization
- demister
- spiral flue
- desulfurization device
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Abstract
The invention discloses a spiral flue gas desulphurization apparatus. The spiral flue gas desulphurization apparatus comprises a gas inlet pipe and a desulphurization tank, wherein the gas inlet pipe is located at the lower part of the desulphurization tank; an ammonia water atomization nozzle is arranged at the central part of the desulphurization tank; a flue gas discharge outlet is formed in the top of the desulphurization tank; a demisting device and spiral wind guiding vanes are arranged in the desulphurization tank; the demisting device is arranged above the ammonia water atomization nozzle; the wind guiding vanes are located above the demisting device; and the wind guiding vanes are sprayed with at least one element selected from a group consisting of praseodymium, lanthanum, cerium, nickel, zinc and titanium or a compound of the elements selected from the group. The spiral flue gas desulphurization apparatus provided by the invention has the advantages of more thorough desulphurization, recoverable byproducts, no secondary pollution, etc.
Description
Technical field
A kind of the present invention relates to flue gas desulfurization technique field, more particularly to spiral flue gas desulfurization device.
Background technology
Coal and the main energy sources that oil is in commercial production and daily life, but which can produce certain oxysulfide in use, which can cause serious pollution in being directly discharged to air to environment, for example, form large-area acid rain or acid particles sedimentation, cause the destruction of ecological environment.With increasingly feeling famished for environment, the environmental consciousness of people is gradually strengthened, and the research and development to the desulfurization technology of flue gas become current study hotspot both domestic and external both at home and abroad.In flue gas desulfurization technique, common technology has ammonia liquor neutralization process, will be reacted, be then then exhausted from air in being passed through aqueous spray chamber after flue gas removing dust.Then, single ammonia liquor neutralization process can not remove the oxysulfide in flue gas completely, and the ammonia after partly atomized will be mixed in the flue gas after desulfurization and be discharged in air, cause secondary pollution to environment.
The content of the invention
Present invention seek to address that ammonia liquor neutralization process of the prior art is not thorough, the ammonia after atomization can cause a difficult problem for secondary pollution, there is provided a kind of new spiral flue gas desulfurization device.
In order to achieve the above object, present invention employs following technical scheme：
A kind of spiral flue gas desulfurization device, including admission line and digester, the admission line is located at the bottom of the digester, ammonia atomization shower nozzle is provided with the middle part of the digester, fume emission mouth is provided with the top of the digester, demister and helical wind-guiding piece is additionally provided with the digester, the demister is located above the ammonia atomization shower nozzle, the helical wind-guiding piece is located above the demister, at least one element being coated with the helical wind-guiding piece in praseodymium, lanthanum, cerium, nickel, zinc, titanium or its compound.
Further, the helical wind-guiding piece is made using NACF, at least one element in the praseodymium, lanthanum, cerium, nickel, zinc, titanium or which is compound loaded on the helical wind-guiding piece.
Used as improved technical scheme of the invention, the demister is activated carbon adsorption plate.Preferably, the activated carbon adsorption plate is downwardly convex curved surface.
Used as further improved technical scheme of the present invention, the demister also includes pre- demister, and the pre- demister is mainly made up of pipe arranged in parallel, and the pipe favours horizontal plane and is arranged between ammonia atomization shower nozzle and activated carbon adsorption plate.Preferably, the angle between the pipe and horizontal plane is between 10 °～60 °.Preferably, the spacing between the adjacent pipe is between 20 millimeters to 100 millimeters.
Used as improved technical scheme of the invention, the bottom of the digester is connected with thiamine acid storage tank.
Used as further improved technical scheme of the present invention, the ammonia atomization shower nozzle is multiple, is distributed between smoke inlet pipe road and demister.
As further improved technical scheme of the present invention, the spiral flue gas desulfurization device also includes ammonia circulation device, the ammonia circulation device includes circulating pump and water-supply-pipe, the water-supply-pipe connects the thiamine acid storage tank and the ammonia atomization shower nozzle, the circulating pump is located at the water-supply-pipe close to one end of thiamine acid storage tank, for the liquid in thiamine acid storage tank is drawn back in the ammonia atomization shower nozzle.
Beneficial effect
Compared with existing spiral flue gas desulfurization device, the at least one element being loaded with praseodymium, lanthanum, cerium, nickel, zinc, titanium or the helical wind-guiding piece of its compound and desulfurization top tank structure form water conservancy diversion convolution air channel, flue gas forms convolution wind in the presence of spiral flow deflector after into water conservancy diversion convolution air channel, increased contact area and the time of contact of at least one element or its compound in flue gas and praseodymium, lanthanum, cerium, nickel, zinc, titanium, catalytic reaction composition, desulfurization are more thorough.Demister is provided between ammonia neutralization chamber and desulphurization catalyst plate, effectively prevent after ammonia atomization as fume emission is in air, secondary pollution is caused, and can prevent ammonia from in desulphurization catalyst plate, causing the active substance in desulphurization catalyst plate to be poisoned.The setting of thiamine acid storage tank and ammonia circulation device, can be such that the oxysulfide in ammonia and flue gas more fully reacts, and increase the concentration of thiamine acid in thiamine acid storage tank, reduce time and cost that thiamine acid recovery is processed.
Description of the drawings
Fig. 1 is the spiral flue gas desulfurization device of the present invention；
Fig. 2 is the pre- demister of the present invention.
Specific embodiment
As shown in Figure 1, the spiral flue gas desulfurization device of the present invention, including admission line 1 and digester 2, admission line 1 is located at the bottom of digester 2, the middle part of digester 2 is provided with ammonia atomization shower nozzle 4, the top of digester 2 is provided with fume emission mouth 8, demister is additionally provided with digester 2（5,6）With helical wind-guiding piece 7, demister（5,6）Above ammonia atomization shower nozzle 4, helical wind-guiding piece 7 is located at demister（5,6）Top, at least one element being coated with helical wind-guiding piece 7 in praseodymium, lanthanum, cerium, nickel, zinc, titanium or its compound.At least one element or the helical wind-guiding piece 7 of its compound being loaded with praseodymium, lanthanum, cerium, nickel, zinc, titanium forms water conservancy diversion convolution air channel with 2 inwall of digester, flue gas forms convolution wind in the presence of spiral flow deflector after into water conservancy diversion convolution air channel, increased contact area and the time of contact of at least one element or its compound in flue gas and praseodymium, lanthanum, cerium, nickel, zinc, titanium, fully, desulfurization is more thorough for catalytic reaction.Further, helical wind-guiding piece 7 is made using NACF, at least one element in praseodymium, lanthanum, cerium, nickel, zinc, titanium or which is compound loaded on helical wind-guiding piece 7.By made by NACF, helical wind-guiding piece 7 has bigger specific surface area, there is good adsorption to the oxysulfide in flue gas, during the active substance for loading thereon can preferably be catalyzed flue gas, remaining oxysulfide reacts, and reaches good desulfurized effect.
Demister（5,6）For activated carbon adsorption plate 6.Preferably, activated carbon adsorption plate 6 is downwardly convex curved surface.Activated carbon adsorption plate 6 can absorb the ammonia in flue gas and part vapor, reach good except fog effect.Its downwardly convex curved-surface structure, can increase the adsorption area of activated carbon adsorption plate 6, strengthen demisting efficiency.Further, demister（5,6）Also include pre- demister 5, pre- demister 5 is mainly made up of pipe arranged in parallel, and pipe favours horizontal plane and is arranged between ammonia atomization shower nozzle 4 and activated carbon adsorption plate 6.Preferably, the angle between pipe and horizontal plane is between 10 °～60 °.Preferably, the spacing between adjacent pipe is between 20 millimeters to 100 millimeters.The flue gas of droplet is carried when through pre- demister 5, the relatively large a part of drop of diameter and droplet are collided and are sticked on the outer wall of pipe with circular tube external wall, and then it is accumulated into water droplet, it is quickly dirty along inclined pipe under gravity, so as to effectively reduce the demisting pressure of activated carbon adsorption plate 6, demisting efficiency is improve.Through demister（5,6）Flue gas after process, due to the interference for not having the impurity such as ammonia, vapor, the stable in catalytic performance of at least one element in praseodymium, lanthanum, cerium, nickel, zinc, titanium or its compound on helical wind-guiding piece 7, long service life.
The bottom of digester 2 is connected with thiamine acid storage tank 3.The thiamine acid that thiamine acid storage tank 3 is produced after can collecting reaction, is easy to directly recycling.
In order to increase the reaction rate of ammonia, the ammonia atomization shower nozzle 4 is multiple, is distributed on smoke inlet pipe road 1 and demister（5,6）Between.
Spiral flue gas desulfurization device also includes ammonia circulation device, ammonia circulation device includes circulating pump 10 and water-supply-pipe 9, the connection thiamine acid storage tank 3 of water-supply-pipe 9 and ammonia atomization shower nozzle 4, circulating pump 10 is located at water-supply-pipe 9 close to one end of thiamine acid storage tank 3, for the liquid in thiamine acid storage tank 3 is drawn back in ammonia atomization shower nozzle 4.As ammonia is recycled, the thiamine acid concentration in thiamine acid storage tank 3 is greatly increased, and the thiamine acid of generation directly can be recycled, and post processing cost is low, take short.
The announcement and teaching of book according to the above description, those skilled in the art in the invention can also carry out appropriate change and modification to above-mentioned embodiment.Therefore, specific embodiment disclosed and described above is the invention is not limited in, some modifications and changes of the present invention should also be as falling in the scope of the claims of the present invention.Although additionally, some specific terms used in this specification, these terms merely for convenience of description, do not constitute any restriction to the present invention.
Claims (10)
1. a kind of spiral flue gas desulfurization device, including admission line and digester, the admission line is located at the bottom of the digester, is provided with ammonia atomization shower nozzle in the middle part of the digester, fume emission mouth is provided with the top of the digester, it is characterised in that：Demister and helical wind-guiding piece is additionally provided with the digester, the demister is located above the ammonia atomization shower nozzle, the helical wind-guiding piece is located above the demister, at least one element being coated with the helical wind-guiding piece in praseodymium, lanthanum, cerium, nickel, zinc, titanium or its compound.
2. spiral flue gas desulfurization device according to claim 1, it is characterised in that：The helical wind-guiding piece is made using NACF, at least one element in the praseodymium, lanthanum, cerium, nickel, zinc, titanium or which is compound loaded on the helical wind-guiding piece.
3. spiral flue gas desulfurization device according to claim 1 and 2, it is characterised in that：The demister is activated carbon adsorption plate.
4. spiral flue gas desulfurization device according to claim 3, it is characterised in that：The activated carbon adsorption plate is downwardly convex curved surface.
5. spiral flue gas desulfurization device according to claim 3, it is characterised in that：The demister also includes pre- demister, and the pre- demister is mainly made up of pipe arranged in parallel, and the pipe favours horizontal plane and is arranged between ammonia atomization shower nozzle and activated carbon adsorption plate.
6. spiral flue gas desulfurization device according to claim 5, it is characterised in that：Angle between the pipe and horizontal plane is between 10 °～60 °.
7. spiral flue gas desulfurization device according to claim 5, it is characterised in that：Spacing between the adjacent pipe is between 20 millimeters to 100 millimeters.
8. spiral flue gas desulfurization device according to claim 1 and 2, it is characterised in that：The bottom of the digester is connected with thiamine acid storage tank.
9. spiral flue gas desulfurization device according to claim 8, it is characterised in that：The ammonia atomization shower nozzle is multiple, is distributed between smoke inlet pipe road and demister.
10. spiral flue gas desulfurization device according to claim 9, it is characterised in that：The spiral flue gas desulfurization device also includes ammonia circulation device, the ammonia circulation device includes circulating pump and water-supply-pipe, the water-supply-pipe connects the thiamine acid storage tank and the ammonia atomization shower nozzle, the circulating pump is located at the water-supply-pipe close to one end of thiamine acid storage tank, for the liquid in thiamine acid storage tank is drawn back in the ammonia atomization shower nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510608906.6A CN106512690A (en) | 2015-09-23 | 2015-09-23 | Spiral flue gas desulphurization apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510608906.6A CN106512690A (en) | 2015-09-23 | 2015-09-23 | Spiral flue gas desulphurization apparatus |
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| CN106512690A true CN106512690A (en) | 2017-03-22 |
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| CN201510608906.6A Pending CN106512690A (en) | 2015-09-23 | 2015-09-23 | Spiral flue gas desulphurization apparatus |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107715647A (en) * | 2017-06-17 | 2018-02-23 | 江苏奔拓电气科技有限公司 | A kind of kitchen garbage organic waste gas treatment device and its application process |
| CN108970401A (en) * | 2018-09-11 | 2018-12-11 | 四川省顺洁清洁汽车设备制造有限公司 | The device of purified treatment is carried out to exhaust gas during motor-vehicle tail-gas environmental protection tests |
| CN109939542A (en) * | 2017-11-29 | 2019-06-28 | 株式会社示远企业 | Harmful gas processing device with pernicious gas guiding function |
-
2015
- 2015-09-23 CN CN201510608906.6A patent/CN106512690A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107715647A (en) * | 2017-06-17 | 2018-02-23 | 江苏奔拓电气科技有限公司 | A kind of kitchen garbage organic waste gas treatment device and its application process |
| CN109939542A (en) * | 2017-11-29 | 2019-06-28 | 株式会社示远企业 | Harmful gas processing device with pernicious gas guiding function |
| CN109939542B (en) * | 2017-11-29 | 2021-12-10 | 株式会社示远企业 | Harmful gas processing device with harmful gas guide function |
| CN108970401A (en) * | 2018-09-11 | 2018-12-11 | 四川省顺洁清洁汽车设备制造有限公司 | The device of purified treatment is carried out to exhaust gas during motor-vehicle tail-gas environmental protection tests |
| CN108970401B (en) * | 2018-09-11 | 2024-05-03 | 四川省顺洁清洁汽车设备制造有限公司 | Device for purifying waste gas in environment-friendly detection process of motor vehicle tail gas |
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Application publication date: 20170322 |