CN206867972U - A kind of coal-fired plant flue gas near-zero release system - Google Patents
A kind of coal-fired plant flue gas near-zero release system Download PDFInfo
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- CN206867972U CN206867972U CN201720454176.3U CN201720454176U CN206867972U CN 206867972 U CN206867972 U CN 206867972U CN 201720454176 U CN201720454176 U CN 201720454176U CN 206867972 U CN206867972 U CN 206867972U
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- flue gas
- processing chamber
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- denitrification apparatus
- electric cleaner
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Abstract
A kind of coal-fired plant flue gas near-zero release system, including vomit pipe are the utility model is related to, denitrification apparatus, electric cleaner, wet desulphurization device, wet electrical dust precipitator, smoke reutilizer and chimney are sequentially provided with vomit pipe；Denitrification apparatus is provided with the first processing chamber and second processing chamber, is provided with reducing agent in the first processing chamber, second processing intracavitary is provided with the oxidation catalyst with Hg；Vomit pipe between denitrification apparatus and electric cleaner is provided with the cooling device for being used for reducing flue-gas temperature；The advantages of the utility model：After flue gas is passed sequentially through into denitrification apparatus, electric cleaner, wet desulphurization device, wet electrical dust precipitator processing, major pollutants in flue gas can be removed one by one, and flue gas is heated by smoke reutilizer, so as to eliminate visual pollution, the discharge of flue gas is realized finally by chimney, realizes the near-zero release of flue gas, greatly reduces the content of pollutant in fume emission, reduce smoke pollution, improve quality of life.
Description
Technical field
It the utility model is related to a kind of coal-fired plant flue gas near-zero release system.
Background technology
Coal-burning power plant is easily drained flue gas in process of production, and includes the pollutants such as PM, SOX, NOX, Hg in flue gas,
The governing system of existing flue gas is using conventional smoke gas treatment system, including handles a kind of single equipment of pollutant, only
A kind of pollutant in flue gas can be removed, it is impossible to the near-zero release of pollutant is realized, causes the pollutant severe overweight in flue gas,
Easily the life to people and health care belt carry out serious influence.
Utility model content
The technical problems to be solved in the utility model is just to provide a kind of coal-fired plant flue gas near-zero release system, solves existing
The problem of with the presence of fume emission pollutant.
In order to solve the above-mentioned technical problem, the utility model is achieved through the following technical solutions：A kind of coal-burning power plant
Flue gas near-zero release system, including the vomit pipe for fume emission, along being set successively on vomit pipe described in vomit pipe discharge directions
There are denitrification apparatus, electric cleaner, wet desulphurization device, wet electrical dust precipitator, smoke reutilizer and chimney；Denitrification apparatus is provided with
First processing chamber and second processing chamber, the first processing chamber is interior to be provided with reducing agent, and second processing intracavitary is provided with the oxidation catalysis with Hg
Agent, second processing chamber and the first processing chamber are provided with a return duct；Set on vomit pipe between denitrification apparatus and electric cleaner
There is the cooling device for reducing flue-gas temperature, be connected with cooling device for flue-gas temperature to be reduced to below acid dew point
Heat-exchanger rig；The demister of the efficient removal for gypsum drop is connected with wet desulphurization device；Chimney, which is provided with, to be used in fact
When monitor chimney breast particle concentration on-Line Monitor Device, exhaust system also include be used for flue gas in flying dust be modified spray
System, spray system include spray equipment and reforming apparatus, and spray equipment is arranged on putting between cooling device and electric cleaner
In expects pipe, the feed end of reforming apparatus is connected with electric cleaner, and the discharge end of reforming apparatus is connected with spray equipment.
Preferably, denitrification apparatus includes casing and box body, and box body is arranged on the bottom of casing, and the first processing chamber is arranged on case
In vivo, second processing chamber is arranged in box body, and casing is provided with the through hole communicated with box body, and the discharge end of return duct is arranged on box
The lower end of body, the feed end of return duct are arranged on the upper end of casing, can realize the multiple denitration process of flue gas, ensure the matter of denitration
Amount, improves follow-up efficiency of dust collection, the first processing chamber and second processing chamber is arranged to the structure of casing and box body, simplified peace
Dress technique, production cost is low, avoids influencing each other for reducing agent and the oxidation catalyst with Hg, further improves denitration effect
Rate.
Preferably, the first processing chamber and the volumetric ratio of second processing chamber are 2:1, the quick of nitrogen oxides in effluent can be realized
Processing, improve denitration efficiency.
Preferably, chimney includes interior conduit and Outer Tube, and the upper end of interior conduit is in round table-like setting, and the lower end of interior conduit is set
There is the connecting tube being connected with Outer Tube, on-Line Monitor Device is arranged in connecting tube, can reduce the damage of on-Line Monitor Device, energy
The concentration that particulate matter is quickly exported to flue dust is monitored, and flue dust can be assembled according to different occasions, practical performance
It is good.
Preferably, the vomit pipe between denitrification apparatus and electric cleaner is provided with base spray equipment, and base spray dress
Put and be connected with feed system, feed system is sprayed into flue gas for adsorbing SO in flue gas3Base, can effectively remove smoke abatement
SO in gas3, and realized by system and the feed of base spray equipment is handled, realize the continuity spray of base-pair flue gas
Leaching.
In summary, the advantages of the utility model：1. flue gas is passed sequentially through into denitrification apparatus, electric cleaner, wet desulphurization
After device, wet electrical dust precipitator processing, the major pollutants in flue gas can be removed one by one, and pass through smoke reutilizer
Flue gas is heated, so as to eliminate visual pollution, the discharge of flue gas is realized finally by chimney, realizes the near of flue gas
Zero-emission, the content of pollutant in fume emission is greatly reduced, reduces smoke pollution, improves quality of life；
2. denitrification apparatus is arranged to the first processing chamber and second processing chamber, it can realize that the nitrogen oxides progress to flue gas is secondary
Different denitration process reactions, and realized in smoke backflow to the first processing chamber by return duct and repeatedly handled, it can improve
Denitration efficiency；
3. the setting of cooling device, realizing the reduction to flue-gas temperature, and flue-gas temperature is reduced by heat-exchanger rig
To acid dew point, SO can efficiently be trapped while efficiency of dust collection is improved by being advantageous to electric cleaner3, ensure that coal-burning power plant expires
Sufficient low emission requirement, and effectively subtract PM2.5 discharges；
The setting of 4 spray systems, the efficient absorption removing processing of Hg in flue gas can be realized；
5. the demister set on wet desulphurization device, efficient removal processing effectively can be carried out to gypsum drop；
6. the setting of on-Line Monitor Device, effectively can be monitored in real time to the particle concentration of chimney breast, ensure
The particle concentration of chimney breast is less than 1mg/m3。
Brief description of the drawings
The utility model is described in further detail below in conjunction with the accompanying drawings：
Fig. 1 is the structural representation of embodiment one；
Fig. 2 is the structural representation of the utility model denitrification apparatus；
Fig. 3 is the structural representation of the utility model chimney；
Fig. 4 is the structural representation of embodiment two.
Embodiment
Embodiment one：
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of coal-fired plant flue gas near-zero release system, including the blowing for fume emission
Pipe 1, along be sequentially provided with described in the discharge directions of vomit pipe 1 on vomit pipe 1 denitrification apparatus 2, electric cleaner 3, wet desulphurization device 4,
Wet electrical dust precipitator 5, smoke reutilizer 6 and chimney 7；Denitrification apparatus 2 is provided with the first processing chamber 21 and second processing chamber 22, the
Reducing agent is provided with one processing chamber 21, the oxidation catalyst with Hg, second processing chamber 22 and first are provided with second processing chamber 22
Processing chamber 22 is provided with a return duct 28；Vomit pipe 1 between denitrification apparatus 2 and electric cleaner 3, which is provided with, to be used to reduce cigarette
The cooling device 8 of temperature degree, the heat-exchanger rig for flue-gas temperature being reduced to below acid dew point is connected with cooling device 8
81；The demister 41 for the efficient removal of gypsum drop is connected with wet desulphurization device 4；Chimney 7, which is provided with, to be used in real time
The on-Line Monitor Device 70 of chimney breast particle concentration is monitored, exhaust system also includes being used for the spray that flying dust is modified in flue gas
System 9, spray system 9 include spray equipment 91 and reforming apparatus 92, and spray equipment 91 is arranged on cooling device 8 and electric cleaner
On vomit pipe 1 between 3, the feed end of reforming apparatus 92 is connected with electric cleaner 3, and discharge end and the spray of reforming apparatus 92 fill
91 are put to be connected.
Denitrification apparatus 2 includes casing 25 and box body 26, and box body 26 is arranged on the bottom of casing 25, and the first processing chamber 21 is set
In casing 25, second processing chamber 22 is arranged in box body 26, and casing 25 is provided with the through hole 27 communicated with box body 26, return duct
28 discharge end is arranged on the lower end of box body 26, and the feed end of return duct 28 is arranged on the upper end of casing 25, can realize flue gas
Multiple denitration process, ensure the quality of denitration, improve follow-up efficiency of dust collection, the first processing chamber and second processing chamber are arranged to
The structure of casing and box body, simplified mounting process, production cost is low, avoids the phase of reducing agent and the oxidation catalyst with Hg
Mutually influence, further improve denitration efficiency, the volumetric ratio of the first processing chamber 21 and second processing chamber 22 is 2:1, flue gas can be realized
The quick processing of middle nitrogen oxides, improve denitration efficiency.
Chimney 7 includes interior conduit 71 and Outer Tube 72, and the upper end of interior conduit 71 is in round table-like setting, the lower end of interior conduit 71
Provided with the connecting tube 73 being connected with Outer Tube 72, on-Line Monitor Device 70 is arranged in connecting tube 73, can reduce on-line monitoring dress
The damage put, the concentration that particulate matter can be quickly exported to flue dust are monitored, and can carry out group to flue dust according to different occasions
Dress, practical performance are good.
Embodiment two：
A kind of coal-fired plant flue gas near-zero release system as described in embodiment one, the present embodiment have following difference
Place：As shown in figure 4, the vomit pipe 1 between denitrification apparatus 2 and electric cleaner 3 is provided with base spray equipment 10, and base sprays
Feed system 11 is connected with device 10, feed system 11 is sprayed into flue gas for adsorbing SO in flue gas3Base, can be effective
Remove flue gas in SO3, and realized by system and the feed of base spray equipment is handled, realize the company of base-pair flue gas
Continuous property spray.
In use, as shown in figure 1, arrow direction indication is the direction of fume emission, flue gas enters denitration by vomit pipe 1
In device 2, flue gas carries out the first processing chamber 21 successively and second processing chamber 22 is handled, and passes through the reducing agent in the first processing chamber 21
It is then anti-by the oxidation catalyst and nitrogen oxides of the band Hg in second processing chamber 22 to the reaction of nitrogen oxides in flue gas
Should, the flue gas after processing realizes that being back to the first processing chamber 21 and second processing chamber 22 carries out second of denitration by return duct 28
Processing, then flue gas enters in cooling device 8, and flue-gas temperature is reduced to below acid dew point by the shape 81 that exchanges heat, can also
Flue gas is handled by base spray equipment 10, then flue gas passes through spray system 9, electric cleaner 3, wet desulphurization device 4, wet
Formula electric cleaner 5 is handled, and is realized to Hg, SO in flue gas3, SOX, gypsum drop be removed, then pass through flue gas reheat
Device 6 heats to flue gas, so as to eliminate visual pollution, the discharge of flue gas is realized finally by chimney, realizes cigarette
The near-zero release of gas, the content of pollutant in fume emission is greatly reduced, reduces smoke pollution, improves quality of life,
And chimney breast particle concentration is monitored by on-Line Monitor Device 70 in real time, it is less than the particle concentration of chimney breast
1mg/m3。
In addition to above preferred embodiment, the utility model also has other embodiments, and those skilled in the art can root
It is variously modified and deforms according to the utility model, without departing from spirit of the present utility model, the utility model all should be belonged to
Scope defined in appended claims.
Claims (5)
1. a kind of coal-fired plant flue gas near-zero release system, including the vomit pipe (1) for fume emission, it is characterised in that：Edge
Denitrification apparatus (2), electric cleaner (3), wet desulphurization device are sequentially provided with described in vomit pipe (1) discharge directions on vomit pipe (1)
(4), wet electrical dust precipitator (5), smoke reutilizer (6) and chimney (7)；
Denitrification apparatus (2) is provided with the first processing chamber (21) and second processing chamber (22), and reducing agent is provided with the first processing chamber (21),
The oxidation catalyst with Hg is provided with second processing chamber (22), second processing chamber (22) and the first processing chamber (22) are provided with one
Return duct (28)；
Vomit pipe (1) between denitrification apparatus (2) and electric cleaner (3) is provided with the cooling device for being used for reducing flue-gas temperature
(8), be connected with the heat-exchanger rig (81) for flue-gas temperature being reduced to below acid dew point on cooling device (8)；
The demister (41) of the efficient removal for gypsum drop is connected with wet desulphurization device (4)；
Chimney (7) is provided with the on-Line Monitor Device (70) for being used for monitoring chimney breast particle concentration in real time；
Exhaust system also includes being used for the spray system (9) that flying dust is modified in flue gas, and spray system (9) includes spray equipment (91)
With reforming apparatus (92), spray equipment (91) is arranged on the vomit pipe (1) between cooling device (8) and electric cleaner (3), changed
The feed end of property device (92) is connected with electric cleaner (3), and the discharge end of reforming apparatus (92) is connected with spray equipment (91).
A kind of 2. coal-fired plant flue gas near-zero release system according to claim 1, it is characterised in that：Denitrification apparatus (2)
Including casing (25) and box body (26), box body (26) is arranged on the bottom of casing (25), and the first processing chamber (21) is arranged on casing
(25) in, second processing chamber (22) is arranged in box body (26), and casing (25) is provided with the through hole (27) communicated with box body (26),
The discharge end of return duct (28) is arranged on the lower end of box body (26), and the feed end of return duct (28) is arranged on the upper of casing (25)
End.
A kind of 3. coal-fired plant flue gas near-zero release system according to claim 1 or 2, it is characterised in that：First processing
The volumetric ratio of chamber (21) and second processing chamber (22) is 2:1.
A kind of 4. coal-fired plant flue gas near-zero release system according to claim 1, it is characterised in that：Chimney (7) includes
Interior conduit (71) and Outer Tube (72), the upper end of interior conduit (71) are in round table-like setting, the lower end of interior conduit (71) be provided with it is outer
The connected connecting tube (73) of pipeline (72), on-Line Monitor Device (70) are arranged in connecting tube (73).
A kind of 5. coal-fired plant flue gas near-zero release system according to claim 1, it is characterised in that：Denitrification apparatus (2)
Vomit pipe (1) between electric cleaner (3) is provided with base spray equipment (10), and supply is connected with base spray equipment
System (11), feed system are sprayed into flue gas for adsorbing SO in flue gas3Base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720454176.3U CN206867972U (en) | 2017-04-27 | 2017-04-27 | A kind of coal-fired plant flue gas near-zero release system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720454176.3U CN206867972U (en) | 2017-04-27 | 2017-04-27 | A kind of coal-fired plant flue gas near-zero release system |
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| Publication Number | Publication Date |
|---|---|
| CN206867972U true CN206867972U (en) | 2018-01-12 |
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ID=61343917
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720454176.3U Active CN206867972U (en) | 2017-04-27 | 2017-04-27 | A kind of coal-fired plant flue gas near-zero release system |
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| CN (1) | CN206867972U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107081049A (en) * | 2017-04-27 | 2017-08-22 | 浙江菲达环保科技股份有限公司 | A kind of coal-fired plant flue gas near-zero release system |
| CN108426263A (en) * | 2018-03-28 | 2018-08-21 | 清华大学 | Coal-fired flue-gas processing system |
-
2017
- 2017-04-27 CN CN201720454176.3U patent/CN206867972U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107081049A (en) * | 2017-04-27 | 2017-08-22 | 浙江菲达环保科技股份有限公司 | A kind of coal-fired plant flue gas near-zero release system |
| CN107081049B (en) * | 2017-04-27 | 2023-03-21 | 浙江菲达环保科技股份有限公司 | Coal fired power plant flue gas near zero discharge system |
| CN108426263A (en) * | 2018-03-28 | 2018-08-21 | 清华大学 | Coal-fired flue-gas processing system |
| CN108426263B (en) * | 2018-03-28 | 2019-10-18 | 清华大学 | Coal-fired flue-gas processing system |
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