CN204093282U - A kind for the treatment of apparatus utilizing ozonization to remove nitrogen oxide - Google Patents
A kind for the treatment of apparatus utilizing ozonization to remove nitrogen oxide Download PDFInfo
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- CN204093282U CN204093282U CN201420459590.XU CN201420459590U CN204093282U CN 204093282 U CN204093282 U CN 204093282U CN 201420459590 U CN201420459590 U CN 201420459590U CN 204093282 U CN204093282 U CN 204093282U
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- ozone
- cooling
- ozone generator
- nitrogen oxide
- ozonization
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Abstract
The utility model relates to a kind for the treatment of apparatus utilizing ozonization to remove nitrogen oxide, comprise booster fan, ozone add distributor, absorption tower, water pump, source of the gas, dilution air, blender, ozone generator, cooling system; Described ozone generator one end connects source of the gas, and the other end and dilution air are by being connected to one end of blender after pipeline communication, the other end of described blender is connected by adding distributor with ozone after pipeline communication with water pump; The top that described ozone adds distributor connects booster fan, and connection absorption tower, bottom, described cooling system and ozone generator are bi-directionally connected.Treating apparatus effect stability of the present utility model, the scope of application is wide, can not produce secondary pollution.
Description
Technical field
The utility model chemical technology field, is specifically related to a kind for the treatment of apparatus utilizing ozonization to remove nitrogen oxide.
Background technology
In the process that the fuel combustions such as coal, oil, natural gas and chemical industry are produced, due to the limitation of low-NO_x combustion technology in stove, containing a large amount of nitrogen oxide and oxysulfide in the flue gas of discharge, serious harm is caused to atmospheric environment and human health, exist in the most form with nitric oxide and nitrogen dioxide of the existence of nitrogen oxides in effluent, in order to reduce the discharge of nitrogen oxide further, denitration process must be carried out to the flue gas after burning.A few class of dry method, semidry method and wet method is roughly had at present to the technique that the purified treatment of flue gas is generally taked, dry method and semidry method exist flue gas change bad adaptability, the shortcoming of desulfuration efficiency instability, wet method is the method extensively adopted at present, can take off the oxysulfide in flue gas, but nitrogen oxide lacks chemism, is difficult to be absorbed by the aqueous solution, denitration efficiency is too low, and byproduct is difficult.
Removal of nitrogen oxide method mainly contains two classes in process of production at present: a class is the generation controlling nitrogen oxide by improving combustion technology, and efficiency is about 30% ~ 50%, and this method efficiency is low, and easily causes the slagging scorification of stove interior conduit, Equations of The Second Kind gas denitrifying technology is American-European, the selective catalytic reduction (SCR) of Japan and other countries extensive use, denitration efficiency is generally 60% ~ 90%, this method catalytic reaction needs to carry out in the high temperature section of flue gas, reaction temperature is at 320 DEG C-400 DEG C, but at high temperature section flue gas without dedusting, in flue gas, dust is more, easily induce reaction the blocking of flue between device, wearing and tearing, heavy metal in flyash also can cause catalyst poisoning, denitration efficiency is reduced, and selective catalytic reduction (SCR) runs and investment cost is very expensive, add the production cost of enterprise.
Summary of the invention
For above-mentioned situation, the purpose of this utility model is to provide a kind for the treatment of apparatus utilizing ozonization to remove nitrogen oxide, effect stability, and the scope of application is wide, can not produce secondary pollution.
The technical solution of the utility model is as follows: a kind for the treatment of apparatus utilizing ozonization to remove nitrogen oxide, comprise booster fan, ozone add distributor, absorption tower, water pump, source of the gas, dilution air, blender, ozone generator, cooling system; Described ozone generator one end connects source of the gas, and the other end and dilution air are by being connected to one end of blender after pipeline communication, the other end of described blender is connected by adding distributor with ozone after pipeline communication with water pump; The top that described ozone adds distributor connects booster fan, and connection absorption tower, bottom, described cooling system and ozone generator are bi-directionally connected.
Preferably, described water pump lower end is provided with water tank, facilitate pumping for water pump, described absorption tower is a kind of multiple-effect gas cleaning absorption tower, and carry out absorption cleaning to high price oxynitrides, described cooling system comprises cooling tower, cooling pond, cooling water circulating pump, heat exchanger plates, described cooling pond is connected with cooling water circulating pump, cooling water circulating pump is connected with ozone generator by after heat exchanger plates, and being connected with cooling tower by heat exchanger plates of ozone generator, cooling pond is arranged at below cooling tower.
To become nitrogen to enter air the nitrogen element reduction in nitrogen oxide contrary with traditional SCR technology, treating apparatus of the present utility model is that the nitrogen element in flue gas is risen valency oxidation, in flue gas, the molar percentage of NO will account for more than 92% usually, the denitration problem solved is exactly mainly remove NO, NO is difficult to water-soluble, solubility is extremely low, and processing method of the present utility model is exactly by oxidation reaction, namely uses ozone (O
3) there is very strong oxidation characteristic under low-temperature condition NO oxidation generated high price oxynitrides (chemical valence of nitrogen be+3 ~+5 is oxynitrides at high price), usually at boiler flue gas outlet exhaust gas temperature within the scope of 90 ~ 180 degree, O
3oxidisability can NO be oxidized to high price oxynitrides, absorbed by absorption tower and be directly dissolved in absorbent, O
3be converted into O
2, can be directly emptying.
Ozone generator in the utility model device can analyze NO, NOX concentration data before and after smoke absorption purification, the ozone output of regulable control ozone generator, ozone adds distributor and can realize being uniformly distributed and cooling effect to ozone, the dilution of dilution air to ozone improves the oxygen utilization rate of ozone, compared with traditional ozone oxidation absorption technique, ozone usage is less, and denitration effect is higher more stable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure: 1, booster fan, 2, ozone adds distributor, 3, absorption tower, 4, cooling system, 5, water pump, 6, water tank, 7, dilution air, 8, blender, 9, source of the gas, 10, ozone generator, 11, cooling tower, 12, cooling pond, 13, cooling water circulating pump, 14, heat exchanger plates, 15, chimney.
Detailed description of the invention
Embodiment 1
As shown in Figure 1, a kind for the treatment of apparatus utilizing ozonization to remove nitrogen oxide, comprise booster fan 1, ozone add distributor 2, absorption tower 3, cooling system 4, water pump 5, water tank 6, dilution air 7, blender 8, source of the gas 9, ozone generator 10, described ozone generator 10 one end connects source of the gas 9, the other end and dilution air 7 are by being connected to one end of blender 8 after pipeline communication, the other end of described blender 8 is connected by adding distributor 2 after pipeline communication with ozone with water pump 5; The top that described ozone adds distributor 2 connects booster fan 1, connection absorption tower, bottom 3, and described cooling system 4 is bi-directionally connected with ozone generator 10, and described water pump 5 lower end is provided with water tank 6; Described cooling system 4 comprises cooling tower 11, cooling pond 12, cooling water circulating pump 13, heat exchanger plates 14, described cooling pond 12 is connected with cooling water circulating pump 13, cooling water circulating pump 13 is connected with ozone generator 10 by after heat exchanger plates 14, ozone generator 10 is connected with cooling tower 11 by heat exchanger plates 14, and cooling pond 12 is arranged at below cooling tower 11.
During concrete enforcement, 1) the described flue gas containing oxynitrides being passed into ozone by flue adds in distributor 2;
2) source of the gas 9 enters ozone generator 10, produce in ozone generator 10 ozone cooling laggard enter pipeline, then utilize dilution air 7 to dilute cooled ozone, and enter blender 8 and mix, obtain diluting uniform ozone, then enter ozone and add distributor 2;
3) step 2) the uniform ozone of dilution that obtains and the flue gas containing oxynitrides in step 1) add in distributor 2 at ozone and mix and produce oxidation reaction, and the NO in waste gas is converted into higher nitrogen oxides N
2o
3or NO
2, after cooling, enter absorption tower 3;
4) containing the flue gas of higher nitrogen oxides after the absorption cleaning of absorption tower 3, obtain tail gas, described tail gas is discharged by chimney 15.
Embodiment 2
Adopt the utility model treating apparatus to be applied to the practical sulphur removal denitrification integral wet processing system of 2x40T heating Industrial Boiler, inlet flue gas amount is 185000 m
3flue-gas temperature is 90 ~ 130 degree, flue gas is from the boiler induced-draft fan of boiler through sack cleaner, the ozone entered in flue adds distributor 2, utilize the ozone that ozone generator 10 produces, enter blender 8 through cooling system 4, dilution air 7 after diluting, the ozone then entered in flue adds distributor 2 and produces oxidation reaction with flue gas, and the flue gas after oxidation enters in absorption tower 3 and carries out absorption reaction.
The NOx content of entrance is at 110 ~ 280mg/m
3, the content sampling results of outlet is as following table:
Add absorbent water in absorption tower 3, flue gas absorbs after washing through water sends into chimney 15, and absorbent recycles, liquid containing ammonium sulfate and ammonium nitrate in the saline solution after enrichment, is byproduct chemical fertilizer through dedusting, concentrated, crystallization, dehydration.The absorbent of the present embodiment also can be NaOH, KOH, Ca (OH) 2, CaO, CaCO3, MgO, NH4H2O, NH4HCO3, seawater etc. wherein one or more.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all do on basis of the present utility model any amendment, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. utilize ozonization to remove a treating apparatus for nitrogen oxide, it is characterized in that comprising booster fan, ozone adds distributor, absorption tower, water pump, source of the gas, dilution air, blender, ozone generator, cooling system; Described ozone generator one end connects source of the gas, and the other end and dilution air are by being connected to one end of blender after pipeline communication, the other end of described blender is connected by adding distributor with ozone after pipeline communication with water pump; The top that described ozone adds distributor connects booster fan, and connection absorption tower, bottom, described cooling system and ozone generator are bi-directionally connected.
2. the treating apparatus utilizing ozonization to remove nitrogen oxide according to claim 1, is characterized in that described water pump lower end is provided with water tank.
3. the treating apparatus utilizing ozonization to remove nitrogen oxide according to claim 1, is characterized in that described absorption tower is a kind of multiple-effect gas cleaning absorption tower.
4. the treating apparatus utilizing ozonization to remove nitrogen oxide according to claim 1, it is characterized in that described cooling system comprises cooling tower, cooling pond, cooling water circulating pump, heat exchanger plates, described cooling tower is connected with ozone generator by heat exchanger plates, described cooling pond is connected with cooling water circulating pump, cooling water circulating pump is connected with ozone generator by after heat exchanger plates, and cooling pond is arranged at below cooling tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420459590.XU CN204093282U (en) | 2014-08-15 | 2014-08-15 | A kind for the treatment of apparatus utilizing ozonization to remove nitrogen oxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420459590.XU CN204093282U (en) | 2014-08-15 | 2014-08-15 | A kind for the treatment of apparatus utilizing ozonization to remove nitrogen oxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204093282U true CN204093282U (en) | 2015-01-14 |
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ID=52261753
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|---|---|---|---|
| CN201420459590.XU Expired - Fee Related CN204093282U (en) | 2014-08-15 | 2014-08-15 | A kind for the treatment of apparatus utilizing ozonization to remove nitrogen oxide |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104128079A (en) * | 2014-08-15 | 2014-11-05 | 山西易通环保技术有限公司 | Treatment method for removing nitrogen oxides by virtue of ozone function |
| CN105797553A (en) * | 2016-05-06 | 2016-07-27 | 哈尔滨工程大学 | Desulfurization and denitration combined treatment device of tail gas of marine diesel engine |
| CN109092018A (en) * | 2018-08-13 | 2018-12-28 | 大同新成新材料股份有限公司 | A kind of flue gas desulfurization and denitration method and device |
-
2014
- 2014-08-15 CN CN201420459590.XU patent/CN204093282U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104128079A (en) * | 2014-08-15 | 2014-11-05 | 山西易通环保技术有限公司 | Treatment method for removing nitrogen oxides by virtue of ozone function |
| CN105797553A (en) * | 2016-05-06 | 2016-07-27 | 哈尔滨工程大学 | Desulfurization and denitration combined treatment device of tail gas of marine diesel engine |
| CN109092018A (en) * | 2018-08-13 | 2018-12-28 | 大同新成新材料股份有限公司 | A kind of flue gas desulfurization and denitration method and device |
| CN109092018B (en) * | 2018-08-13 | 2020-06-05 | 大同新成新材料股份有限公司 | Flue gas desulfurization and denitrification device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150114 Termination date: 20200815 |
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| CF01 | Termination of patent right due to non-payment of annual fee |