CN207324512U - A kind of denitration of boiler smoke device - Google Patents
A kind of denitration of boiler smoke device Download PDFInfo
- Publication number
- CN207324512U CN207324512U CN201721229600.0U CN201721229600U CN207324512U CN 207324512 U CN207324512 U CN 207324512U CN 201721229600 U CN201721229600 U CN 201721229600U CN 207324512 U CN207324512 U CN 207324512U
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- CN
- China
- Prior art keywords
- spray tube
- ammoniacal liquor
- smoke
- upside
- denitration
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a kind of denitration of boiler smoke device, including reaction tower, the lower end of the reaction tower is provided with ammoniacal liquor storage pool, the first catalyst reaction layer is provided with the upside of the ammoniacal liquor storage pool, the first spray tube is provided with the upside of the first catalyst reaction layer, the second catalyst reaction layer is provided with the upside of first spray tube, the second spray tube is provided with the upside of the second catalyst reaction layer, the liquid feeding end of first drawing liquid pump is connected by pipeline with ammoniacal liquor storage pool, first spray tube and the second spray tube run through supersonic generator, nitrogen oxides detector is installed with the upside of the demister, the first air-introduced machine is provided with the smoke exhaust pipe, reflux mechanism is provided between the smoke exhaust pipe and smoke-intake pipe.The utility model adds contact effect of the ammoniacal liquor with flue gas, and denitration effect is good, can carry out reflux denitration to flue gas, can realize and be automatically replenished when ammoniacal liquor concentration is relatively low.
Description
Technical field
Denitration of boiler smoke technical field is the utility model is related to, is specially a kind of denitration of boiler smoke device.
Background technology
The dust-laden exhaust gas that flue gas, pneumatic ash transmitting system intermediate exhaust and the coal yard that boiler combustion produces produce, and coal yard,
Raw coal crush and coal conveying caused by coal dust.Wherein, the exhaust gas volumn and the pollutant discharge amount contained by it that boiler combustion produces
It is far longer than other exhaust gas, the pollutant in the flue gas that boiler combustion produces has flying dust, SO2, NOx, CO, CO2, a small amount of fluorination
Thing and chloride.Ratio shared by them depends on the mineral matter composition in coal, major pollutants be flying dust, coal dust, SO2 and
NOx。
Wherein, NOx can cause acid rain, acid rain can corrode building, the especially corruption to metal as wherein important pollutant
Corrosion of the erosion mainly to steel construction.Meanwhile acute hazard is also produced to plant, blade surface produces necrotic plaque, plant leaf
Withered and yellow, pest and disease damage aggravates, or plant leaf blade is withered and come off, or even kills vegetation.In addition, acid rain can also make crops big
The amplitude underproduction, particularly wheat, can the underproduction 13% to 34% under Acid Rain Effect.Soybean, vegetables are also easily endangered by acid rain,
Protein content and yield is caused to decline.Also, serious harm is also caused to human body, children immune function can be declined, also
There can be strong impulse effect to eye and respiratory mucosa, long-term influence also results in the infection of the upper respiratory tract, chronic bronchial
A variety of disease incidence increases such as inflammation, pulmonary emphysema, while old man's eye, the increase of respiratory tract illness rate can be made, seriously endanger the mankind
Health.
For boiler combustion produce flue gas need carry out denitration process could discharge, in order to avoid to environment and it is artificial into
Serious consequence, therefore, it is proposed that a kind of denitration of boiler smoke device.
Utility model content
The purpose of this utility model is to provide a kind of denitration of boiler smoke device, to solve to propose in above-mentioned background technology
The problem of.
To achieve the above object, the utility model provides following technical solution：A kind of denitration of boiler smoke device, including it is anti-
Tower is answered, the lower end of the reaction tower is provided with ammoniacal liquor storage pool, and it is anti-to be provided with the first catalyst on the upside of the ammoniacal liquor storage pool
Layer is answered, the first spray tube is provided with the upside of the first catalyst reaction layer, is provided with the upside of first spray tube
Two catalyst reaction layers, are provided with the second spray tube, first spray tube and on the upside of the second catalyst reaction layer
Spray head is installed with two spray tubes, first spray tube and the second spray tube pass through pipeline and the first drawing liquid pump
Outlet end be connected, the liquid feeding end of first drawing liquid pump is connected by pipeline with ammoniacal liquor storage pool, the reaction tower with
Smoke-intake pipe is connected, and supersonic generator, first spray tube and second are installed with the lateral wall of the reaction tower
Spray tube runs through supersonic generator, and demister is provided with the upside of second spray tube, and the upside of the demister is consolidated
Dingan County is equipped with nitrogen oxides detector, and the top of the reaction tower is provided with smoke exhaust pipe, first is provided with the smoke exhaust pipe and is drawn
Wind turbine, reflux mechanism is provided between the smoke exhaust pipe and smoke-intake pipe.
Preferably, ozone generator is installed with the lateral wall of the reaction tower, the ozone generator is arranged at
Between second spray tube and the second catalyst reaction layer.
Preferably, the ammoniacal liquor storage pool supplements tank with ammoniacal liquor through the second drawing liquid pump by pipeline and is connected.
Preferably, it is installed with ammoniacal liquor concentration detector on the side wall of the ammoniacal liquor storage pool.
Preferably, the smoke-intake pipe is internally provided with filtrating smoke dust net.
Preferably, the reflux mechanism includes the second air-introduced machine and return duct, the inlet end of second air-introduced machine with go out
Gas end is connected by return duct with smoke exhaust pipe and smoke-intake pipe respectively.
Compared with prior art, the beneficial effects of the utility model are：The denitration of boiler smoke device, is sent out by ultrasonic wave
Raw device is atomized ammoniacal liquor, adds contact effect of the ammoniacal liquor with flue gas, denitration effect is good, can be produced by ozone generator smelly
The NO of indissoluble can be oxidized to readily soluble high-valence state nitrogen oxides, further increase denitration effect, pass through the mechanism that flows back by oxygen, ozone
Nitrogen oxides detector is coordinated to flow back when denitration flue gas not up to sets mark, reacted tower carries out denitration again,
It can realize and be automatically replenished when ammoniacal liquor concentration is relatively low at the same time.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the sectional view of the utility model.
In figure：1 reaction tower, 2 ammoniacal liquor storage pools, 3 first catalyst reaction layers, 4 first spray tubes, 5 second catalyst are anti-
Answer layer, 6 second spray tubes, 7 spray heads, 8 first drawing liquid pumps, 9 smoke-intake pipes, 10 supersonic generators, 11 demisters, 12 nitrogen oxygen
Compound detector, 13 smoke exhaust pipes, 14 first air-introduced machines, 15 reflux mechanisms, 151 second air-introduced machines, 152 return ducts, 16 ozone hair
Raw device, 17 second drawing liquid pumps, 18 ammoniacal liquors supplement tank, 19 ammoniacal liquor concentration detectors, 20 filtrating smoke dust nets.
Embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained, shall fall within the protection scope of the present invention.
Please refer to Fig.1 and Fig. 2, the utility model provide a kind of technical solution：A kind of denitration of boiler smoke device, including it is anti-
Tower 1 is answered, the lower end of the reaction tower 1 is provided with ammoniacal liquor storage pool 2, and the upside of the ammoniacal liquor storage pool 2 is provided with the first catalysis
Agent conversion zone 3, the upside of the first catalyst reaction layer 3 are provided with the first spray tube 4, the upside of first spray tube 4
It is provided with the second catalyst reaction layer 5, the upside of the second catalyst reaction layer 5 is provided with the second spray tube 6, and described first
Spray head 7 is installed with 4 and second spray tube 6 of spray tube, 4 and second spray tube 6 of the first spray tube passes through
Pipeline is connected with the outlet end of the first drawing liquid pump 8, and the liquid feeding end of first drawing liquid pump 8 passes through pipeline and ammoniacal liquor storage pool 2
It is connected, the reaction tower 1 is connected with smoke-intake pipe 9, and supersonic generator is installed with the lateral wall of the reaction tower 1
10,4 and second spray tube 6 of the first spray tube runs through supersonic generator 10, and the upside of second spray tube 6 is set
There is demister 11, the upside of the demister 11 is installed with nitrogen oxides detector 12, and the top of the reaction tower 1 is set
Smoke exhaust pipe 13 is equipped with, the first air-introduced machine 14 is provided with the smoke exhaust pipe 13, is set between the smoke exhaust pipe 13 and smoke-intake pipe 9
There is reflux mechanism 15.
Specifically, ozone generator 16 is installed with the lateral wall of the reaction tower 1, the ozone generator 16 is set
It is placed between 5 conversion zone of the second spray tube 6 and the second catalyst, ozone generator 16 can produce ozone, and ozone can be by indissoluble
NO is oxidized to readily soluble high-valence state nitrogen oxides, increases denitration effect.
Specifically, the ammoniacal liquor storage pool 2 supplements tank 18 with ammoniacal liquor through the second drawing liquid pump 17 by pipeline and is connected, institute
State and ammoniacal liquor concentration detector 19 is installed with the side wall of ammoniacal liquor storage pool 2, can detect the concentration of 2 ammoniacal liquor of ammoniacal liquor storage pool simultaneously
Supplement is realized when ammoniacal liquor concentration is relatively low.
Specifically, the smoke-intake pipe 9 is internally provided with filtrating smoke dust net 20, and filtrating smoke dust net 20 can be by the cigarette in flue gas
Dirt filters out.
Specifically, the reflux mechanism 15 includes the second air-introduced machine 151 and return duct 152, second air-introduced machine 151
Inlet end and outlet side are connected by return duct 152 with smoke exhaust pipe 13 and smoke-intake pipe 9 respectively, and reflux mechanism 15 coordinates nitrogen oxidation
Analyte detection instrument 12 can flow back when denitration flue gas not up to sets mark, and reacted tower 1 carries out denitration again.
The denitration of boiler smoke device, in use, electrically being connected each electrical equipment with PLC control system by conducting wire
Connect, boiler smoke is entered in reaction tower 1 by smoke-intake pipe 9, and flue gas removes flue dust through filtrating smoke dust net 20, and PLC control system is opened
Open the first drawing liquid pump 8 and the ammoniacal liquor in ammoniacal liquor storage pool 2 is drawn to the first spray tube 4 and the second spray tube 6, while PLC is controlled
System opens supersonic generator 10, ammoniacal liquor is sprayed after being atomized by spray head 7, adds contact effect of the ammoniacal liquor with flue gas
Fruit, denitration effect is good, can produce ozone by ozone generator 16, the NO of indissoluble can be oxidized to readily soluble high-valence state nitrogen by ozone
Oxide, further increases denitration effect.
While there has been shown and described that the embodiment of the utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from the principle of the utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of denitration of boiler smoke device, including reaction tower (1), it is characterised in that：The lower end of the reaction tower (1) is provided with
Ammoniacal liquor storage pool (2), is provided with the first catalyst reaction layer (3), first catalyst on the upside of the ammoniacal liquor storage pool (2)
The first spray tube (4) is provided with the upside of conversion zone (3), it is anti-to be provided with the second catalyst on the upside of first spray tube (4)
Answer layer (5), be provided with the second spray tube (6) on the upside of the second catalyst reaction layer (5), first spray tube (4) and
Spray head (7) is installed with second spray tube (6), first spray tube (4) and the second spray tube (6) pass through pipe
Road is connected with the outlet end of the first drawing liquid pump (8), and the liquid feeding end of first drawing liquid pump (8) passes through pipeline and ammoniacal liquor storage pool
(2) it is connected, the reaction tower (1) is connected with smoke-intake pipe (9), is installed with the lateral wall of the reaction tower (1) super
Sonic generator (10), first spray tube (4) and the second spray tube (6) run through supersonic generator (10), and described
Demister (11) is provided with the upside of two spray tubes (6), nitrogen oxides detection is installed with the upside of the demister (11)
Instrument (12), the top of the reaction tower (1) are provided with smoke exhaust pipe (13), the first air-introduced machine are provided with the smoke exhaust pipe (13)
(14), reflux mechanism (15) is provided between the smoke exhaust pipe (13) and smoke-intake pipe (9).
A kind of 2. denitration of boiler smoke device according to claim 1, it is characterised in that：The outside of the reaction tower (1)
Ozone generator (16) is installed with wall, the ozone generator (16) is arranged at the second spray tube (6) and the second catalysis
Between agent conversion zone (5).
A kind of 3. denitration of boiler smoke device according to claim 1, it is characterised in that：The ammoniacal liquor storage pool (2) is logical
Piping is connected through the second drawing liquid pump (17) with ammoniacal liquor supplement tank (18).
A kind of 4. denitration of boiler smoke device according to claim 1, it is characterised in that：The ammoniacal liquor storage pool (2)
Ammoniacal liquor concentration detector (19) is installed with side wall.
A kind of 5. denitration of boiler smoke device according to claim 1, it is characterised in that：The inside of the smoke-intake pipe (9)
It is provided with filtrating smoke dust net (20).
A kind of 6. denitration of boiler smoke device according to claim 1, it is characterised in that：The reflux mechanism (15) includes
Second air-introduced machine (151) and return duct (152), the inlet end of second air-introduced machine (151) and outlet side pass through reflux respectively
Pipe (152) is connected with smoke exhaust pipe (13) and smoke-intake pipe (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721229600.0U CN207324512U (en) | 2017-09-25 | 2017-09-25 | A kind of denitration of boiler smoke device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721229600.0U CN207324512U (en) | 2017-09-25 | 2017-09-25 | A kind of denitration of boiler smoke device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207324512U true CN207324512U (en) | 2018-05-08 |
Family
ID=62369616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721229600.0U Expired - Fee Related CN207324512U (en) | 2017-09-25 | 2017-09-25 | A kind of denitration of boiler smoke device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207324512U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112611223A (en) * | 2021-01-12 | 2021-04-06 | 博爱金隅水泥有限公司 | Denitration system and process adopting staged combustion |
-
2017
- 2017-09-25 CN CN201721229600.0U patent/CN207324512U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112611223A (en) * | 2021-01-12 | 2021-04-06 | 博爱金隅水泥有限公司 | Denitration system and process adopting staged combustion |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180508 Termination date: 20210925 |
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| CF01 | Termination of patent right due to non-payment of annual fee |