CN207203800U - Nitrogen-containing oxide fume treatment reuse means - Google Patents
Nitrogen-containing oxide fume treatment reuse means Download PDFInfo
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- CN207203800U CN207203800U CN201721050319.0U CN201721050319U CN207203800U CN 207203800 U CN207203800 U CN 207203800U CN 201721050319 U CN201721050319 U CN 201721050319U CN 207203800 U CN207203800 U CN 207203800U
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- Prior art keywords
- pipeline
- storage tank
- flue gas
- nitrogen
- absorption tower
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Abstract
The utility model discloses a kind of nitrogen-containing oxide fume treatment reuse means, including flue gas condenser, the gas outlet of flue gas condenser is connected by pipeline with the air inlet of vacuum filter tank, the gas outlet of vacuum filter tank is connected by pipeline with the air inlet of vacuum jet pump, the gas outlet of vacuum jet pump is connected by pipeline with the air inlet of smoke absorption tower, the inlet of smoke absorption tower is connected by pipeline with the liquid outlet of absorbent storage tank, the liquid outlet of smoke absorption tower is connected by pipeline with the inlet of membrane diffusion electrodialysis apparatus, the fresh water outlet mouth of membrane diffusion electrodialysis apparatus is connected by pipeline with the inlet of absorbent storage tank.Caused nitrogen oxides utilizes nitric acid using off-gas recovery in the utility model processing gold, silver wet smelting process, achieves good effect；High with absorptivity, operating cost is low, cheap using water absorbent, the features such as not producing brine waste, significantly reduces environmental protection pressure.
Description
Technical field
The utility model belongs to technical field of waste gas treatment, and in particular to a kind of nitrogen-containing oxide fume treatment recycles dress
Put.
Background technology
With the continuous progress of society, caused nitrogen oxide containing gas discharge capacity is got in chemical industry and smelting industry production process
Come more, nitrogen oxides is one of Air Pollutant Discharge, and a great problem of air contaminant treatment at present.Nitrogen oxides is
Refer to a series of compounds being made up of nitrogen member rope and oxygen element, include N2O、NO、N2O3、NO2、N2O4、N2O5, generally use molecule
Formula NOx carrys out unified representation, and NOx is mainly with NO, NO in air2Form exist.NOx harm recognized by people already,
It is mainly reflected in：（1）Harm of the nitrogen oxides to human body is very big, can directly result in the respiratory tract injury of human body, and is a kind of
Carcinogenic substance；（2）It is even dead that nitrogen oxides can be damaged plant；（3）Under the catalytic action of sunlight, nitrogen oxides is easily and carbon
Complicated photochemical reaction occurs for hydride, produces photochemical fog, causes serious atmosphere pollution；（4）Nitrogen oxides can be led
Cause the destruction of ozone layer；（5）Nitrogen oxides is also easily combined into the acid rain containing nitric acid composition with aqueous vapor.Above photochemistry cigarette
Mist, acid rain and ozone problem, there is the trend to run down in recent years, have become government and what the public was concerned about very much asks
Topic.
At present, nitrogen oxide containing gas processing method mainly has absorption method, absorption process, selective catalytic reduction and non-selection
Property several major classes such as catalytic reduction method and red-hot carbon reduction method.The equal Shortcomings of above routine nitrogen oxide containing gas facture, or
The problems such as processing cost height or poor processing effect or high unstable and maintenance cost, causes the improvement of nitrogen oxide containing gas to be limited
System.
Utility model content
The utility model is directed to weak point of the prior art, there is provided a kind of nitrogen-containing oxide fume treatment recycles dress
Put.
The purpose of this utility model is realized in the following manner：
Nitrogen-containing oxide fume treatment reuse means, including flue gas condenser, the gas outlet of flue gas condenser pass through pipe
Road is connected with the air inlet of vacuum filter tank, and the gas outlet of vacuum filter tank is connected by the air inlet of pipeline and vacuum jet pump
Logical, the gas outlet of vacuum jet pump is connected by pipeline with the air inlet of smoke absorption tower, and the inlet of smoke absorption tower passes through
Pipeline connects with the liquid outlet of absorbent storage tank, and the liquid outlet of smoke absorption tower passes through pipeline and the feed liquor of membrane diffusion electrodialysis apparatus
Mouth connection, the fresh water outlet mouth of membrane diffusion electrodialysis apparatus are connected by pipeline with the inlet of absorbent storage tank, membrane diffusion dialysis
The concentrated water delivery port of device is connected by pipeline with nitric acid storage tank.
Also including deionized water storage tank, the delivery port of deionized water storage tank is connected by pipeline with the water inlet of refrigeration machine,
The delivery port of refrigeration machine is connected by pipeline with the water inlet of flue gas condenser, and the delivery port of flue gas condenser is by pipeline with going
The water inlet connection of ionized water storage tank.
The film that the membrane diffusion electrodialysis apparatus uses is amination composite membrane.
Relative to prior art, the utility model based on membrane diffusion osmotic technique, be aided with flue gas condensing, vacuum filter and
The techniques such as water absorption, handle caused nitrogen oxides in gold, silver wet smelting process and nitric acid is utilized using off-gas recovery, achieve
Good effect；High with absorptivity, operating cost is low, cheap using water absorbent, the features such as not producing brine waste,
Environmental protection pressure, and the nitric acid reusable edible reclaimed are significantly reduced, that is, alleviates pollution, creates value again, it is real
The now comprehensive utilization of the industrial waste gas, reduces environmental pollution, and has more significant economic benefit and social benefit.
Membrane diffusion osmotic technique is to use the membrane separation technique based on aromatic polyether class composite membrane.The production of the film
Special amination crosslinking process is employed in journey, realizes the 3 D cross-linked of film, intensity greatly improves, and has fabulous materialization steady
It is qualitative, fume treatment compliance rate 100%, waste acid recycling rate more than 80%.Compared with traditional processing flue gas method, it has
The advantages that simple to operate, energy-saving, environment-friendly high-efficiency.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Wherein, 1 is deionized water storage tank；2 be refrigeration machine；3 be flue gas condenser；4 be vacuum filter tank；5 be vacuum spray
Penetrate pump；6 be smoke absorption tower；7 be absorbent storage tank；8 be membrane diffusion electrodialysis apparatus.
Embodiment
As shown in Figure 1, nitrogen-containing oxide fume treatment reuse means, including flue gas condenser 3, flue gas condenser 3
Gas outlet connected by pipeline with the air inlet of vacuum filter tank 4, the gas outlet of vacuum filter tank 4 passes through pipeline and sprayed with vacuum
The air inlet connection of pump 5 is penetrated, the gas outlet of vacuum jet pump 5 is connected by pipeline with the air inlet of smoke absorption tower 6, and flue gas is inhaled
The inlet for receiving tower 6 is connected by pipeline with the liquid outlet of absorbent storage tank 7, the liquid outlet of smoke absorption tower 6 by pipeline and
The inlet connection of membrane diffusion electrodialysis apparatus 8, the fresh water outlet mouth of membrane diffusion electrodialysis apparatus 8 pass through pipeline and absorbent storage tank 7
Inlet connection, the concentrated water delivery port of membrane diffusion electrodialysis apparatus 8 connected by pipeline with nitric acid storage tank 9.
Also include deionized water storage tank 1, the delivery port of deionized water storage tank 1 is connected by the water inlet of pipeline and refrigeration machine 2
Logical, the delivery port of refrigeration machine 2 is connected by pipeline with the water inlet of flue gas condenser 3, and the delivery port of flue gas condenser 3 passes through pipe
Road connects with the water inlet of deionized water storage tank 1.
The film that membrane diffusion electrodialysis apparatus 8 uses is amination composite membrane.
The course of work of the present utility model is as follows：Deionized water in deionized water storage tank 1 after the cooling of refrigeration machine 2,
Into in flue gas condenser 3, the cold water in flue gas condenser 3 heats up after the processing to nitrogen-containing oxide, again returns to
In ionized water storage tank 1；
Nitrogen-containing oxide flue gas is introduced into flue gas condenser 3, and suspension, large granular impurity and recovery are removed after subcooled water
Part nitric acid, and then flue gas enter vacuum filter tank 4, vacuum filter tank plays a part of buffering and degrading dust, flue gas warp
After crossing vacuum filter, by the entrance smoke absorption of vacuum jet pump 5 tower 6, absorbent-water in absorbent storage tank 7 enters flue gas
In absorption tower 6, and sprayed by spray head, fully contacted with the flue gas for entering smoke absorption tower 6, nitrogen oxidation will be contained in flue gas
Thing is absorbed in water, is formed the dust technology that concentration is 4% or so, is passed through the exhaust outlet on smoke absorption tower 6 after such flue gas is up to standard
Discharge；Dust technology enters membrane diffusion electrodialysis apparatus 8, a series of knots that membrane diffusion electrodialysis apparatus 8 is made up of a number of film
Structure unit；Wherein each unit separates into dialysing compartment and diffuser casing by an anion homogeneous membrane, using counter-current operation, the moon from
The both sides of sub- homogeneous membrane each lead into dust technology liquid and acceptable solution（Running water）When, the acid of dust technology liquid side and its concentration of salt are remote
Higher than the side of water, according to diffusion dialysis principle, due to the presence of concentration gradient, spent acid and the oriented diffuser casing infiltration of its esters
Trend, but film has selective penetrated property to anion, therefore in the presence of concentration difference, the anion of dust technology side are attracted and suitable
Enter the side of water through fenestra road sharply.Required simultaneously according to electroneutral, cation can be also carried secretly, due to H+Hydrated radius
Smaller, electric charge is less；And the hydrated radius of metal salt is larger, electric charge is more, therefore H+Can be preferentially by film, in such waste liquid
Acid will be separated.Separated using membrane diffusion electrodialysis apparatus 8, be separated into concentrated water and fresh water, fresh water stores up into absorbent
Groove 7 returns to absorption tray 6 and used, and concentrated water is that the higher nitric acid of concentration enters the return production system use of nitric acid storage tank 9.
Flue gas condenser and smoke absorption tower in the utility model are retracting device of the prior art, refrigeration machine and true
Empty jet pump is existing mature equipment.
Amination composite membrane used in the utility model is purchased from Shandong Tianwei Membrane Technology Co., Ltd., for the Shandong of the said firm's production
Tian Wei membrane technologies Co., Ltd, or homogeneous-phase anion exchange film.
Above-described is only preferred embodiment of the present utility model, it is noted that for those skilled in the art
For, under the premise of the utility model general idea is not departed from, some changes and improvements can also be made, these should also be considered as
The scope of protection of the utility model.
Claims (3)
1. nitrogen-containing oxide fume treatment reuse means, it is characterised in that：Including flue gas condenser（3）, flue gas condenser（3）
Gas outlet pass through pipeline and vacuum filter tank（4）Air inlet connection, vacuum filter tank（4）Gas outlet by pipeline with it is true
Empty jet pump（5）Air inlet connection, vacuum jet pump（5）Gas outlet pass through pipeline and smoke absorption tower（6）Air inlet
Connection, smoke absorption tower（6）Inlet pass through pipeline and absorbent storage tank（7）Liquid outlet connection, smoke absorption tower（6）'s
Liquid outlet passes through pipeline and membrane diffusion electrodialysis apparatus（8）Inlet connection, membrane diffusion electrodialysis apparatus（8）Fresh water outlet mouth lead to
Piping and absorbent storage tank（7）Inlet connection, membrane diffusion electrodialysis apparatus（8）Concentrated water delivery port pass through pipeline and nitric acid
Storage tank（9）Connection.
2. nitrogen-containing oxide fume treatment reuse means according to claim 1, it is characterised in that：Also include deionization
Water storage tank（1）, deionized water storage tank（1）Delivery port pass through pipeline and refrigeration machine（2）Water inlet connection, refrigeration machine（2）'s
Delivery port passes through pipeline and flue gas condenser（3）Water inlet connection, flue gas condenser（3）Delivery port by pipeline and go from
Sub- water storage tank（1）Water inlet connection.
3. nitrogen-containing oxide fume treatment reuse means according to claim 1, it is characterised in that：The membrane diffusion oozes
Analysis apparatus（8）The film used is amination composite membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721050319.0U CN207203800U (en) | 2017-08-22 | 2017-08-22 | Nitrogen-containing oxide fume treatment reuse means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721050319.0U CN207203800U (en) | 2017-08-22 | 2017-08-22 | Nitrogen-containing oxide fume treatment reuse means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207203800U true CN207203800U (en) | 2018-04-10 |
Family
ID=61815972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721050319.0U Expired - Fee Related CN207203800U (en) | 2017-08-22 | 2017-08-22 | Nitrogen-containing oxide fume treatment reuse means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207203800U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109133016A (en) * | 2018-09-28 | 2019-01-04 | 四川省翰克环保设备有限公司 | A kind of three-stage nitrogen oxide containing gas absorbs acid making system and method |
| CN110227328A (en) * | 2019-07-16 | 2019-09-13 | 湖北东方化工有限公司 | A kind of nitric acid flue gas that the rate of recovery is high absorption processing method |
-
2017
- 2017-08-22 CN CN201721050319.0U patent/CN207203800U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109133016A (en) * | 2018-09-28 | 2019-01-04 | 四川省翰克环保设备有限公司 | A kind of three-stage nitrogen oxide containing gas absorbs acid making system and method |
| CN109133016B (en) * | 2018-09-28 | 2023-07-21 | 翰克偲诺水务集团有限公司 | Three-section type nitrogen oxide flue gas absorption acid making system and method |
| CN110227328A (en) * | 2019-07-16 | 2019-09-13 | 湖北东方化工有限公司 | A kind of nitric acid flue gas that the rate of recovery is high absorption processing method |
| CN110227328B (en) * | 2019-07-16 | 2022-05-27 | 湖北东方化工有限公司 | Nitric acid flue gas absorption treatment method with high recovery rate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180831 Address after: 100142 Beijing Haidian District West Fourth Ring Road 158 1 1 6 story 6055 Patentee after: Beijing Xi Ke Source Environmental Protection Technology Co. Ltd Address before: 450016 Daewoo Yiyuan 11, Shang Ying Street, Zhengzhou, Henan Patentee before: Beijing Xi Ke Source Environmental Protection Technology Co., Ltd. Henan branch |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180410 Termination date: 20190822 |