CN203108413U - Oxynitride absorption device - Google Patents
Oxynitride absorption device Download PDFInfo
- Publication number
- CN203108413U CN203108413U CN 201220526388 CN201220526388U CN203108413U CN 203108413 U CN203108413 U CN 203108413U CN 201220526388 CN201220526388 CN 201220526388 CN 201220526388 U CN201220526388 U CN 201220526388U CN 203108413 U CN203108413 U CN 203108413U
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- absorption reaction
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Abstract
The utility model provides an oxynitride absorption device which consists of a gas jetting device, a liquid accumulating device and a reaction absorbing device. The device is divided into a gas jetting chamber, a liquid accumulating chamber, an absorption reaction chamber and a demisting chamber according to the characteristics, wherein the gas jetting chamber and the absorption reaction chamber are connected with the liquid accumulating chamber; the demisting chamber is installed at the upper end of the absorption reaction chamber; the gas jetting chamber is provided with a gas inlet and a circulating liquid inlet; the liquid accumulating chamber is internally provided with a circulating liquid level control port, a circulating pump connector, a liquid discharge port and a purifying port; the absorption reaction chamber is internally provided with a filler support frame, a filler, a circulating liquid spraying port and a nozzle; and the demisting chamber is internally provided with a screen gasket of a demisting device and a gas outlet. The oxynitride absorption device provided by the utility model has the advantages of good absorption effect, high filter precision, good effect in removing acidic mist entrained in gas, low investment and maintenance cost, small occupied area, energy saving, bio-environmental protection and the like, and is long in service life, stable in performance and strong in adaptability.
Description
Technical field
The utility model belongs to the technical field that nox adsorption is handled, be applicable to that nitric acid industry production, nitric acid loading system, nitro are that the production industry of raw material carries out a kind of nox adsorption device that nox adsorption is handled, particularly to the bigger occasion of human body hazard ratio and the industry serious to atmosphere pollution such as environment.
Background technology
Nitric acid industry production of today, nitric acid loading system, nitro are the production industry of raw material.Extremely unstable in the production technology link and in the red fuming nitric acid (RFNA) accumulating, very easily to decompose at normal temperatures, the rapid condensation in air of the nitrogen oxide after the decomposition forms extremely small particle, shows as and produces a large amount of visual tobacco.These organic cigarettes are discharged in the air, not only decrease the corrosion factory building, and can be formed directly in acid rain, and the ammonia-nitrogen content of water body exceeds standard to wait environment is caused serious pollution, and human body sucks and then occupational health made a big impact.
Prior art all is to administer at the denitration of large scale industry boiler and nitric acid plant tail gas etc. mostly, but the discharged nitrous oxides of fragmentary trace is had no way of doing it.The method of catalytic reduction is all invested excessive and energy consumption is high, is unfavorable for that the improvement of medium and small emission point is promoted.
The utility model content
The purpose of this utility model is the problem that nitric acid volatilization smog exists is solved, and then the nox adsorption that a kind of project organization is reasonable, easy to operate, effects of energy conservation and environmental protection is good device is provided.
For achieving the above object, the technical solution that the utility model adopts is such: the nox adsorption device, it is characterized in that, formed by gas injection apparatus, hydrops device, reaction absorption plant three parts, according to feature separately successively equipment be divided into gas jet chamber, hydrops chamber, absorption reaction chamber, except four working cells, fog chamber, the gas jet chamber all is connected with the hydrops chamber with the absorption reaction chamber, except the fog chamber is installed in upper end, absorption reaction chamber, wherein, the gas jet chamber is provided with air inlet and circulation fluid import; Indoor circulation fluid liquid level control mouth, circulating pump interface, leakage fluid dram and the discharging hole of being provided with of hydrops; Be provided with filler bracing frame, filler, circulation fluid mouth spray and shower nozzle in the absorption reaction chamber, the effect of filler is to prolong the time of staying of oxides of nitrogen gas in tower body; Be provided with demister mesh pad and gas outlet except in the fog chamber.
Its working method: rely on Venturi tube moment pressure reduction that extraneous volatile acid fog body is sucked in the tower body by air inlet, the acid mist droplet that a part is condensed deposits to the nitric oxide in another part oxides of nitrogen gas in the hydrops chamber by own wt and is recycled aqueous hydrogen peroxide solution that liquid mouth spray spray comes and is oxidized to nitrogen dioxide and enters the hydrops chamber with water reaction back generation salpeter solution, gas from bottom to top enters the back suction receipts and answers the chamber, in the absorption reaction chamber not oxidized nitrogen oxide sour gas and spray water mist (aqueous hydrogen peroxide solution) form reverse contact nitric oxide to be oxidized to fully become dilute nitric acid solution after nitrogen dioxide is absorbed by water enter the hydrops chamber, gas after absorbing enters demister (mesh pad), separate through demist (mesh pad), the liquid acid mist of carrying secretly in the gas is separated, clean gas after the separation is by going out a mouthful discharge tower body outside, and the liquid that has absorbed enters in the hydrops chamber by the self gravitation effect.
Compare with existing catalytic reduction technology; the utility model nitric acid mist absorption treating device has good absorbing effect, filtering accuracy height in industry practical applications such as nitric acid industry production, nitric acid loading system, chemical fertilizer production, remove carry in the gas that the acid fume fog effect is good, the investment maintenance cost is low, floor space is little secretly, energy efficient, advantage such as preserve the ecological environment, and long service life, stable performance, applicability are strong.The nitrogen oxide that is primarily aimed at medium and small emission point and uncontrollable discharge point is administered.
Description of drawings
Fig. 1 is the structural representation of the utility model nox adsorption device.
The specific embodiment
Referring to Fig. 1, the utility model nox adsorption device, be by gas injection apparatus, the hydrops device, reaction absorption plant three parts are formed, successively equipment is divided into the B of gas jet chamber according to feature separately, hydrops chamber A, absorption reaction chamber C, except four working cells of the D of fog chamber, the B of gas jet chamber all is connected with hydrops chamber A with absorption reaction chamber C, except the D of fog chamber is installed in absorption reaction chamber C upper end, wherein, the B of gas jet chamber is provided with the venturi injection apparatus, air inlet N1 and circulation fluid import N8, the effect of venturi injection apparatus is: 1, gas acid mist and pollutant are washed.2, the moment pressure reduction that utilizes the variation of venturi larynx neck to produce forms negative pressure, extraneous nitrogen oxide is sucked in the tower body, thereby the assurance dusty gas is not emerged from other opening part; The effect of air inlet is the circulation passage of gas being sent into tower body, and the circulation fluid import is the circulation fluid in the hydrops chamber to be squeezed in the jet chamber by circulating pump the acid mist gas that contains nitrogen oxide is carried out preliminary oxidation absorption; In the A of hydrops chamber, be provided with circulation fluid liquid level control mouthful N3, circulating pump interface N4, leakage fluid dram N5 and discharging hole N6, wherein, thereby the effect of circulation fluid liquid level control is the height control leakage fluid dram that shows hydrops indoor circulation liquid level in what situation opens, the effect of circulating pump interface is that the circulation fluid in the hydrops chamber is sent into N7 respectively with pump, N8 circulation fluid entrance carries out oxidation to the acid mist gas that contains nitrogen oxide and absorbs, the effect of leakage fluid dram is after liquid level control goes beyond the scope thereby the part circulation fluid in the hydrops chamber to be discharged the liquid level maintenance steady state that makes hydrops indoor outside the tower body, and the effect of discharging hole is with the impurity in the tower body when parking maintenance, waste liquid is discharged; In the C of absorption reaction chamber, be provided with filler bracing frame, filler 3, circulation fluid mouth spray N7 and shower nozzle 2, the effect of filler support is to support the filler that is laid in, the effect of filler 3 be prolong the time of staying of oxides of nitrogen gas in tower body with guarantee nitrogen oxide in tower body fully oxidation absorb, to be the circulation fluid sent here by circulating pump by shower nozzle 2 spray in the tower body with the gas of institute nitrogen-containing oxide carries out reverse the contact in the effect of circulation fluid mouth spray N7; Be provided with demister mesh pad 1 and gas outlet N2 except among the D of fog chamber.The effect of demister mesh pad 1 is that the acid mist drop of carrying secretly in the gas after the oxidation absorption is separated, and the effect of gas outlet N2 is by outside this mouthful discharge tower body through the gas behind the demister isolation of purified.
Claims (1)
1. nox adsorption device, it is characterized in that, formed by gas injection apparatus, hydrops device, reaction absorption plant three parts, according to feature separately successively equipment be divided into gas jet chamber (B), hydrops chamber (A), absorption reaction chamber (C), except four working cells, fog chamber (D), gas jet chamber (B) all is connected with hydrops chamber (A) with absorption reaction chamber (C), except fog chamber (D) is installed in upper end, absorption reaction chamber (C), wherein, gas jet chamber (B) is provided with air inlet (N1) and circulation fluid import (N8); Be provided with the control of circulation fluid liquid level mouthful (N3), circulating pump interface (N4), leakage fluid dram (N5) and discharging hole (N6) in the hydrops chamber (A); Be provided with filler bracing frame, filler (3), circulation fluid mouth spray (N7) and shower nozzle (2) in absorption reaction chamber (C), the effect of filler (3) is to prolong the time of staying of oxides of nitrogen gas in tower body; Be provided with demister mesh pad (1) and gas outlet (N2) except in the fog chamber (D).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220526388 CN203108413U (en) | 2012-10-15 | 2012-10-15 | Oxynitride absorption device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220526388 CN203108413U (en) | 2012-10-15 | 2012-10-15 | Oxynitride absorption device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203108413U true CN203108413U (en) | 2013-08-07 |
Family
ID=48888792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220526388 Expired - Fee Related CN203108413U (en) | 2012-10-15 | 2012-10-15 | Oxynitride absorption device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203108413U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108744896A (en) * | 2018-07-20 | 2018-11-06 | 四川思达能环保科技有限公司 | A kind of nitrogen oxide containing gas absorption acid making system |
| CN109718635A (en) * | 2017-10-31 | 2019-05-07 | 中国石油化工股份有限公司 | A kind of process of flue gas desulfurization and denitrification |
-
2012
- 2012-10-15 CN CN 201220526388 patent/CN203108413U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109718635A (en) * | 2017-10-31 | 2019-05-07 | 中国石油化工股份有限公司 | A kind of process of flue gas desulfurization and denitrification |
| CN108744896A (en) * | 2018-07-20 | 2018-11-06 | 四川思达能环保科技有限公司 | A kind of nitrogen oxide containing gas absorption acid making system |
| CN108744896B (en) * | 2018-07-20 | 2023-12-15 | 四川思达能环保科技有限公司 | Nitrogen oxide flue gas absorption system for preparing acid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20130807 Termination date: 20141015 |
|
| EXPY | Termination of patent right or utility model |