CN208824232U - A kind of ozone injection apparatus and odor at low temperature denitrification apparatus - Google Patents
A kind of ozone injection apparatus and odor at low temperature denitrification apparatus Download PDFInfo
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- CN208824232U CN208824232U CN201821594709.9U CN201821594709U CN208824232U CN 208824232 U CN208824232 U CN 208824232U CN 201821594709 U CN201821594709 U CN 201821594709U CN 208824232 U CN208824232 U CN 208824232U
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Abstract
The utility model discloses a kind of ozone injection apparatus, injection supervisor and the static mixer for being used to spray ozone being successively set on including the direction along flow of flue gas in flue, the static mixer includes static mixing tube, the static mixing tube arranges multiple row along the direction of flow of flue gas, static mixing tube positioned at same row is spaced apart, and the static mixing tube of adjacent two column is mutually staggeredly arranged.The invention also discloses a kind of odor at low temperature denitrification apparatus comprising above-mentioned ozone injection apparatus.The flue gas that the utility model is flowed from the ozone and flue that ozone jet pipe ejects needs to flow through the multiple row static mixing tube of interlaced arrangement, mixed flue gas collides static mixing tube and changes flow direction, and then it sufficiently spread with ozone, flow, absorb and react, have many advantages, such as that injection mixing efficiency height, structure are simple and convenient to operate, can be widely applied in coke oven low-temperature denitration of flue gas technique.
Description
Technical field
The utility model belongs to denitration equipment technology field more particularly to a kind of ozone injection apparatus and odor at low temperature denitration
Device.
Background technique
At present in coke oven industry, the flue gas in coke oven contains the nitrogen oxides of high concentration (about 700mg/Nm3)
Ambient enviroment and the life of people can be seriously affected if be directly discharged in atmosphere without purified treatment with the flue dust of high concentration
Life health.Requirement with the execution of " discharge standard of air pollutants ", to the discharged nitrous oxides in coke oven flue gas
It is higher and higher.It thus needs to carry out full flue gas desulfurization, denitration, dedusting from the flue gas that coke oven comes out, just allows to be discharged into big compression ring
In border, low-temperature denitration is that the lower nitrogen oxides in flue gas are converted to higher nitrogen oxides, is then reduced into nitrogen, reduces nitrogen oxygen
A kind for the treatment of process of compound concentration.
Ozone denitration technology is that low-temperature oxidation method of denitration is a kind of, and Ozonation denitration is mainly the strong oxygen for utilizing ozone
The property changed carries out oxidation and denitration, is soluble high-valence state nitrogen oxides by insoluble lower valency nitrogen oxides, is then washing
It washs nox adsorption in tower or desulfurizing tower, achievees the purpose that removing.But since ozone is extremely easy in decomposition, and ozone and NO's is anti-
Speed is answered quickly, in order to guarantee the efficiency of ozone denitration, it is necessary to assure ozone is sufficiently mixed once entrance flue with flue gas, as
The ozone injection apparatus of oxidation and denitration technique core component is the key that influence denitration effect quality, therefore ozone injection apparatus
Stable operation it is most important.Patent 201721195734.5 discloses a kind of ozone injection apparatus, by increasing rapping apparatus,
For carrying out rapping to injection supervisor and nozzle, regular deashing is carried out, to solve the problems, such as injection supervisor and nozzle dust stratification.But
Above-mentioned apparatus still has the problem of ozone and flue gas cannot be sufficiently mixed.
Utility model content
The application aims to solve at least one of the technical problems existing in the prior art.For this purpose, the purpose of this utility model
One of be to provide a kind of structure and be simple and convenient to operate, spray the high ozone injection apparatus of mixing efficiency and odor at low temperature denitration
Device
In order to solve the above technical problems, the utility model adopts the following technical solution:
A kind of ozone injection apparatus is successively set in flue including the direction along flow of flue gas and is used to spray ozone
Injection supervisor and static mixer, the static mixer include static mixing tube, the static mixing tube is along flue gas stream
Multiple row is arranged in dynamic direction, and the static mixing tube positioned at same row is spaced apart, and the static mixing tube of adjacent two column intermeshes
Arrangement.
Further, the static mixing tube of adjacent two column is criss-cross arranged.
Further, direction of the axis of the static mixing tube perpendicular to flow of flue gas.
Further, the static mixing tube is arranged along the direction arrangement two of flow of flue gas.
It further, further include the dispensers being connected with ozone generator, the dispensers and more injections
Supervisor is connected, and each injection supervisor is equipped with nozzle.
Further, the injection supervisor is equipped with multiple nozzles, and the injection direction of each nozzle is along flow of flue gas
Direction.
Further, the both ends of the static mixing tube and injection supervisor are fixedly connected with the inner wall of flue.
A kind of odor at low temperature denitrification apparatus, including denitration reaction tower and above-mentioned ozone injection apparatus, the flue go out
Gas end is connected with the smoke inlet of denitration reaction tower.
Further, the denitration reaction tower along flow of flue gas direction be divided into urea liquid storage section, absorbing reaction section and
Urea spray section, the urea spray section is interior to be equipped with the spray tube being connected to urea liquid storage section, the spray tube and urea liquid storage
The pipeline that section is connected is pumped equipped with tower outer circulation, and the smoke inlet is arranged in denitrating tower side bottom, the absorbing reaction
There is multiple filling layers layer along flow of flue gas direction arranged for interval in section, is equipped with cloth compression ring, the spray between adjacent two layers packing layer
Solution distributor is equipped between pipe and adjacent described filler layer.
Further, demister is additionally provided between the urea spray section and the exhanst gas outlet for reacting column overhead.
Compared with prior art, the utility model has the beneficial effects that:
The flue gas that the odor at low temperature denitrification apparatus of the utility model is flowed from the ozone and flue that ozone jet pipe ejects
Need to flow through the multiple row static mixing tube of interlaced arrangement, mixed flue gas collides static mixing tube and changes flow direction, sufficiently expands with ozone
After dissipating, flow, absorb and reacting, by the lower nitrogen oxides in flue gas at higher nitrogen oxides, then subsequent special
Nitrogen oxides is reduced into nitrogen in reaction tower, the discharge standard for making the nitrous oxides concentration in discharge flue gas reach permission is wanted
It asks, has many advantages, such as that injection mixing efficiency height, structure are simple and convenient to operate, can be widely applied to coke oven low-temperature denitration of flue gas
In technique.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the ozone injection apparatus of the utility model；
Fig. 2 is the vertical view attached drawing of the ozone injection apparatus of the utility model；
Fig. 3 is the structural schematic diagram of the utility model odor at low temperature denitrification apparatus.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
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 embodiments of the present invention, those of ordinary skill in the art are without creative efforts
Every other embodiment obtained, fall within the protection scope of the utility model.
Referring to Fig. 1 and Fig. 2, a kind of ozone injection apparatus, is successively set in flue 1 including the direction along flow of flue gas
The injection supervisor 2 and static mixer 3 for spraying ozone, static mixer 3 includes static mixing tube 301, static mixing
Pipe 301 arranges multiple row along the direction of flow of flue gas, and the static mixing tube 301 positioned at same row is spaced apart, adjacent two column
Static mixing tube 301 is mutually staggeredly arranged.
Flue gas is after the entrance of the inlet end of flue 1, and ozone is sprayed through injection supervisor 2 along flow of flue gas, when by interlocking
When the static mixing tube 301 of arrangement, mixed flue gas collides static mixing tube 301 and changes flow direction, and then sufficiently spreads with ozone,
Stream is absorbed and is reacted, by the lower nitrogen oxides in flue gas at higher nitrogen oxides, then in subsequent special reaction tower
Nitrogen oxides is reduced into nitrogen, makes to discharge the discharge standard requirement that the nitrous oxides concentration in flue gas reaches permission, there is spray
Penetrate the advantages that mixing efficiency is high, structure is simple and convenient to operate.
It should be noted that in practical applications, static mixing tube 301 can be arranged two along the direction of flow of flue gas
Column, the static mixing tube 301 of two column is preferably using being criss-cross arranged, and the axis of static mixing tube 301 is perpendicular to flow of flue gas
Direction, can realize being sufficiently mixed for ozone and flue gas in the case where it is not very big that flue gas flow rate, which reduces, in this way.
As a kind of preferred embodiment of the utility model, ozone injection apparatus further include be connected with ozone generator 4 it is smelly
Oxygen orchestration 5, dispensers 5 are connected with more injection supervisors 2, and the ozone the amount of injection of each injection supervisor 2 can pass through ozone
Distributor 5 carries out flexible modulation, and dispensers 5 and ozone generator 4 are existing equipment, are repeated no more.
Preferably, each injection supervisor 2 is equipped with nozzle 6, and more are sprayed side of the axis perpendicular to flow of flue gas of supervisor 2
To.Specifically, injection supervisor 2 is equipped with multiple nozzles 6, and the injection direction of each nozzle 6 is sprayed along the direction of flow of flue gas
6 spout of mouth is designed along flue gas direction, to guarantee that ozone is mixed with flue gas.Spray supervisor 2, static mixing tube 301 and nozzle 6
Particular number, those skilled in the art can require to be adaptively adjusted according to specific design and denitration, no longer superfluous herein
It states.In the present embodiment, the both ends of static mixing tube 301 and injection supervisor 2 are connect with the welding of the inner wall of flue 1 or bolt fastening.
Referring to Fig. 1 and Fig. 3, a kind of odor at low temperature denitrification apparatus, including denitration reaction tower 7 and above-mentioned ozone injection apparatus,
1 outlet side of flue is connected with the smoke inlet 8 of denitration reaction tower 7.
It is envisioned that in practical applications, denitration reaction tower 7 is divided into urea liquid storage section along flow of flue gas direction
701, absorbing reaction section 702 and urea spray section 703, urea spray section 703 is interior to be equipped with the spray being connected to urea liquid storage section 701
Pipe 9, spray tube 9 are equipped with the spout away from the setting of flow of flue gas direction, the pipe that spray tube 9 is connected with urea liquid storage section 701
Road 10 is equipped with tower outer circulation pump 11, and the setting of smoke inlet 8 is in denitrating tower side bottom, absorbing reaction section 702 along flue gas stream
Dynamic direction arranged for interval has multiple filling layers layer 12, is equipped with cloth compression ring 13 between adjacent two layers packing layer 12, spray tube 9 and adjacent
Solution distributor 14 is equipped between packing layer 12.
Coke oven flue gas after ozone oxidation enters from the smoke inlet 8 of tower body, into after in tower from bottom to top through gas distribution
Ring 13 flows diffusion, and the solution sprayed from spray tube 9 flows from above to below after solution distributor 14 is uniformly distributed, gas from bottom to top
Body passes through packing layer 12 and contacts with urea liquid, and then mutual absorbing reaction, is reduced into nitrogen for the nitrogen oxides in flue gas
The flue gas of gas and carbon dioxide, rising is discharged into atmosphere from tower top exhanst gas outlet, and flue gas flows diffusion by cloth compression ring 13,
Urea liquid is evenly distributed with by solution distributor 14 and smoke contacts, to ensure that denitration efficiency, reduces the nitrogen oxidation in flue gas
Object concentration.As for the number of plies of packing layer, can require to be adaptively adjusted according to specific denitration, and the use of packing layer
Material is the prior art, and details are not described herein.
Specifically, solution is taken out of in order to prevent, may be used also between urea spray section 703 and the exhanst gas outlet for reacting column overhead
To be equipped with demister 15, the flue gas after reaction after the removal droplet of demister 15 from tower top chimney by being discharged, into atmosphere.
Above-described embodiment is only to clearly demonstrate examples for clearly illustrating the present invention, rather than the restriction to embodiment.
For those of ordinary skill in the art, other various forms of variations can also be made on the basis of the above description
Or it changes.Here without can not be also exhaustive to all embodiments.And the obvious variation thus amplified out
Or it changes among still in the protection scope of the utility model.
Claims (10)
1. a kind of ozone injection apparatus is successively set in flue including the direction along flow of flue gas and is used to spray ozone
Injection supervisor and static mixer, it is characterised in that: the static mixer includes static mixing tube, the static mixing tube edge
The direction of flow of flue gas arrange multiple row, the static mixing tube positioned at same row is spaced apart, the static mixing tubes of adjacent two column
It is mutually staggeredly arranged.
2. ozone injection apparatus according to claim 1, it is characterised in that: the static mixing tube of adjacent two column is criss-cross
Arrangement.
3. ozone injection apparatus according to claim 1, it is characterised in that: the axis of the static mixing tube is perpendicular to cigarette
The direction of flow of air.
4. ozone injection apparatus according to claim 1, it is characterised in that: the static mixing tube is along flow of flue gas
Two column of direction arrangement.
5. ozone injection apparatus according to claim 1-4, it is characterised in that: further include and ozone generator phase
Dispensers even, the dispensers are connected with more injection supervisors, and each injection supervisor is equipped with nozzle.
6. ozone injection apparatus according to claim 5, it is characterised in that: the injection supervisor is equipped with multiple nozzles,
And the injection direction of each nozzle is along the direction of flow of flue gas.
7. ozone injection apparatus according to claim 5, it is characterised in that: the static mixing tube and the two of injection supervisor
End is fixedly connected with the inner wall of flue.
8. a kind of odor at low temperature denitrification apparatus, it is characterised in that: including described in denitration reaction tower and claim any one of 1-7
Ozone injection apparatus, the outlet side of the flue is connected with the smoke inlet of denitration reaction tower.
9. odor at low temperature denitrification apparatus according to claim 8, it is characterised in that: the denitration reaction tower is along flow of flue gas
Direction is divided into urea liquid storage section, absorbing reaction section and urea spray section, is equipped with and urea liquid storage in the urea spray section
The spray tube of Duan Liantong, the pipeline that the spray tube is connected with urea liquid storage section are pumped equipped with tower outer circulation, and the flue gas enters
Mouth setting has multiple filling layers layer, phase along flow of flue gas direction arranged for interval in denitrating tower side bottom, the absorbing reaction section
It is equipped with cloth compression ring between adjacent two layers of packing layer, solution distributor is equipped between the spray tube and adjacent described filler layer.
10. odor at low temperature denitrification apparatus according to claim 9, it is characterised in that: the urea spray section and reaction tower
Demister is additionally provided between the exhanst gas outlet of tower top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821594709.9U CN208824232U (en) | 2018-09-28 | 2018-09-28 | A kind of ozone injection apparatus and odor at low temperature denitrification apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821594709.9U CN208824232U (en) | 2018-09-28 | 2018-09-28 | A kind of ozone injection apparatus and odor at low temperature denitrification apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208824232U true CN208824232U (en) | 2019-05-07 |
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ID=66317792
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821594709.9U Active CN208824232U (en) | 2018-09-28 | 2018-09-28 | A kind of ozone injection apparatus and odor at low temperature denitrification apparatus |
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| Country | Link |
|---|---|
| CN (1) | CN208824232U (en) |
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2018
- 2018-09-28 CN CN201821594709.9U patent/CN208824232U/en active Active
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