CN207755874U - Flue gas chilling denitration association system - Google Patents
Flue gas chilling denitration association system Download PDFInfo
- Publication number
- CN207755874U CN207755874U CN201721634059.1U CN201721634059U CN207755874U CN 207755874 U CN207755874 U CN 207755874U CN 201721634059 U CN201721634059 U CN 201721634059U CN 207755874 U CN207755874 U CN 207755874U
- Authority
- CN
- China
- Prior art keywords
- flue gas
- chilling
- tower
- denitration
- denitrating
- Prior art date
- 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.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Landscapes
- Treating Waste Gases (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The utility model discloses flue gas chilling denitration association systems, including：Chilling tower, denitrating tower and ash bucket.Wherein, there is smoke inlet, the bottom end of chilling tower to be exported with cooled flue gas on the top of chilling tower, and the top of chilling tower is provided with the spraying device suitable for spraying lye into chilling tower；There is cooled flue gas entrance, denitrating tower top to be exported with purifying smoke for the bottom end of denitrating tower, and denitrification apparatus is provided in denitrating tower；Ash bucket is located at the lower section of chilling tower and denitrating tower, and there are spaced two openings, two openings to be connected respectively with cooled flue gas outlet and cooled flue gas entrance at the top of ash bucket, and the bottom end of ash bucket has waste outlet.The system has both the effect of chilling, deacidification and catalytic denitration, using the system handle burn after flue gas not only flue gas can be made to cool down rapidly, moreover it is possible to make NOx denitrating catalyst effect under with ammonia NH3Reaction generates harmless nitrogen N2, effectively avoid generating pollution to environment.
Description
Technical field
The utility model belongs to exhaust-gas treatment field, specifically, the utility model is related to flue gas chilling denitration joint systems
System.
Background technology
Solid waste incineration fume typically contains the pollutants such as bioxin, NOx, and flue gas chilling technique is widely used in burning
Fume treatment is mainly sprayed water in chilling tower, so that flue gas was reduced to 200 DEG C or so by 500 DEG C or so within 1 second time, is prevented
Bioxin regenerates.In recent years, although there is water spray in chilling tower to have spray alkali concurrently for chilling, the report of deacidification, according to existing danger
Dangerous incineration of waste processing engineering monitoring shows since NOx can make the purification obtained after deacidification there are exceeded or higher in flue gas
There are still NOx or the phenomenons of ammonia excess in flue gas, and then lead to that processing cost is higher, secondary pollution etc. even occurs.Therefore, locate
The method of reason solid waste incineration fume is further improved.
Utility model content
The utility model is intended to solve at least some of the technical problems in related technologies.For this purpose, this reality
It is to propose that flue gas chilling denitration association system, the system have both chilling, deacidification and catalytic denitration with a novel purpose
Effect, the flue gas handled after burning using the system not only can be such that flue gas cools down rapidly, moreover it is possible to NOx be made to make in denitrating catalyst
With lower and ammonia NH3Reaction generates harmless nitrogen N2, effectively avoid generating pollution to environment.
One side according to the present utility model, the utility model proposes flue gas chilling denitration association systems, including：
There is smoke inlet, the bottom end of the chilling tower to be exported with cooled flue gas on the top of chilling tower, the chilling tower,
The top of the chilling tower is provided with the spraying device suitable for spraying lye into the chilling tower；
The bottom end of denitrating tower, the denitrating tower has cooled flue gas entrance, and the denitrating tower top goes out with purifying smoke
Mouthful, it is provided with denitrification apparatus in the denitrating tower；
Ash bucket, the ash bucket are located at the lower section of the chilling tower and the denitrating tower, and the top of the ash bucket has interval
Two openings being arranged, described two openings are connected with cooled flue gas outlet and the cooled flue gas entrance respectively, institute
The bottom end for stating ash bucket has waste outlet.
According to the flue gas chilling denitration association system of the utility model above-described embodiment, burning cigarette can be made in chilling tower
Gas cools down rapidly under the action of alkali mist, and bioxin is effectively prevent to regenerate, and removes part NOx, while making the powder in flue gas
Dirt particle is settled down to ash bucket；200 DEG C or so of the cooled flue gas obtained after chilling enters denitrating tower, and by denitrification apparatus, makes
Remaining NOx reacts in device is urged in denitration generates harmless nitrogen N2, finally obtain purifying smoke.The utility model as a result,
The flue gas chilling denitration association system of above-described embodiment can not only save list by coupling chilling, deacidification with denitration
Only spray ammonia system, can also effectively solve that denitration removal efficiency is low, ammonia is excessive in purifying smoke, purification is of high cost, even occurs
Secondary pollution problems, and then make incineration flue gas non-pollution discharge.
In addition, can also be had according to the flue gas chilling denitration association system of the utility model above-described embodiment following additional
Technical characteristic：
In the present invention, the spraying device includes alkali liquor storage tank and nozzle, and the alkali liquor storage tank is suitable for holding containing
Ammonia water purification, the nozzle are suitable for spraying the water purification containing ammonia into the chilling tower.Thus, it is possible to make flue gas chilling and deacidification two
A process is carried out at the same time, and then can be significantly improved the efficiency of gas cleaning and be simplified chilling denitrating system.
In the present invention, the denitrification apparatus is plate-type denitration catalyst.Thus, it is possible to significantly improve to cooling cigarette
The denitrification rate of gas, and be conducive to clean denitrification apparatus.
In the present invention, the thickness of the plate-type denitration catalyst is 0.8-1.5m.Thus, it is possible to further increase
Carry out denitration to cooled flue gas and effect, and then further increases the quality of purifying smoke.
In the present invention, it is provided with gas distribution net in the cooled flue gas entrance.Thus, it is possible to further increase to cold
But flue gas carries out the efficiency and effect of denitration.
In the present invention, the gas distribution net is formed by acid resisting steel net.Thus, it is possible to effectively avoid gas distribution net rotten
Erosion.
In the present invention, flue gas chilling denitration association system further comprises：Getter cover, the getter cover connect institute
The open top of the cooled flue gas entrance and the ash bucket of denitrating tower is stated, the lower ending opening of the getter cover is more than upper end opening.
Thus, it is possible to further increase the efficiency for carrying out denitration purification to cooled flue gas.
In the present invention, the sectional area of the lower part of the chilling tower is gradually reduced.Thus, it is possible to further increase pair
Incineration flue gas carries out the effect of chilling and purification.
Description of the drawings
Fig. 1 is the structural schematic diagram according to the flue gas chilling denitration association system of the utility model one embodiment.
Fig. 2 is the structural schematic diagram according to the flue gas chilling denitration association system of the utility model another embodiment.
Specific implementation mode
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model
Limitation.
One side according to the present utility model, the utility model proposes flue gas chilling denitration association systems, such as Fig. 1 institutes
Show, including：Chilling tower 100, denitrating tower 200 and ash bucket 300.
Wherein, there is smoke inlet 110, the bottom end of chilling tower 100 to be exported with cooled flue gas on the top of chilling tower 100
120, the top of chilling tower is provided with the spraying device 130 suitable for spraying lye into chilling tower；The bottom end of denitrating tower 200 has
There is purifying smoke to export 220, denitrification apparatus is provided in denitrating tower 200 for cooled flue gas entrance 210,200 top of denitrating tower
230；Ash bucket 300 is located at the lower section of chilling tower 100 and denitrating tower 200, and the top of ash bucket 300 has spaced two and opens
Mouthful, two openings are connected with cooled flue gas outlet 120 and cooled flue gas entrance 210 respectively, and the bottom end of ash bucket 300, which has, to be discarded
Object outlet 310.
According to the flue gas chilling denitration association system of the utility model above-described embodiment, can make to burn in chilling tower 100
It burns flue gas under the action of alkali mist to cool down rapidly, effectively prevent bioxin to regenerate, and remove part NOx, while making in flue gas
Dust particles be settled down to ash bucket；200 DEG C or so of the cooled flue gas obtained after chilling enters denitrating tower 200, and passes through denitration
Device 230 makes remaining NOx be reacted in denitrification apparatus 230 and generates harmless nitrogen N2, finally obtain purifying smoke.As a result,
The flue gas chilling denitration association system of the utility model above-described embodiment is by coupling chilling, deacidification with denitration, not only
Individually spray ammonia system can be saved, can also effectively solve that denitration removal efficiency is low, ammonia is excessive in purifying smoke, purification cost
Height even occurs secondary pollution problems, and then makes incineration flue gas can be with non-pollution discharge.
The flue gas chilling denitration association system of the utility model above-described embodiment is retouched in detail below with reference to Fig. 1-2
It states.
Specific embodiment according to the present utility model, spraying device 130 may include alkali liquor storage tank and nozzle (not shown),
Alkali liquor storage tank is suitable for holding water purification containing ammonia, and nozzle is suitable for spraying water purification containing ammonia into chilling tower.In the utility model by using
The water injection system that chilling is carried out to incineration flue gas can be changed to spray ammonium hydroxide by above-mentioned setting, make two mistakes of flue gas chilling and deacidification
Journey is carried out at the same time, and not only flue gas can be made to be reduced to 200 DEG C or so by 500 DEG C or so in 1 second as a result, can also effectively be gone
Except the part NOx in flue gas, the efficiency that chilling denitration is carried out to incineration flue gas is significantly improved.In addition, with individual denitrification apparatus
It compares, the flue gas chilling denitration association system of the utility model above-described embodiment also eliminates spray ammonia system.
Specific embodiment according to the present utility model can be prepared according to the content of NOx in exhaust gas volumn and flue gas and contain ammonia
The concentration of water purification, it is preferable that the dosage of ammonia can be calculated with the 70-80% of NOx theories removal rate in flue gas, and prepared net containing ammonia
Water.Thus, it is possible to effectively avoid the ammonia being added excessive and cause secondary pollution.
Specific embodiment according to the present utility model, denitrification apparatus 230 can be low form denitrating catalyst.Invention human hair
It is existing, by using denitrating catalyst, after the cooled flue gas obtained after chilling can be made to enter denitrating tower 200, in denitrating catalyst
Under the action of, remaining NOx is reacted with ammonia generates harmless N2, such as：4NO+4NH3+O2→4N2+6H2O, 2NO+4NH3+O2→
3N2+6H2O.The utility model not only can at low temperature be significantly improved to cold by selecting low form denitrating catalyst as a result,
But the denitrification rate of flue gas, moreover it is possible to the problem of ammonia excess effectively in solution chilling denitrification process, and then further increase finally obtained
The quality of purifying smoke.
Specific embodiment according to the present utility model, denitrification apparatus 230 can be plate-type denitration catalyst.The utility model
In by select plate-type denitration catalyst, can not only significantly improve the denitrification rate to cooled flue gas, also help to denitration fill
It sets 230 to be cleaned, effectively prevent dust blocking catalyst and keeps catalyst activity, and then significantly improve the effect of denitration reaction
The quality of rate and purifying smoke.
The thickness of specific embodiment according to the present utility model, plate-type denitration catalyst can be 0.8-1.5m.Inventor
It was found that when the thickness of plate-type denitration catalyst is too small, it is limited to the denitration effect of cooled flue gas, pass through control in the utility model
The thickness of plate-type denitration catalyst processed is 0.8-1.5m, can not only be significantly improved to the denitration efficiency of cooled flue gas and denitration effect
Fruit can also avoid catalyst from wasting.
Specific embodiment according to the present utility model, flue gas chilling denitration association system may further include：Pressure measurement fills
(not shown) is set, the detector of pressure measuring unit can be separately positioned on the upstream and downstream of denitrification apparatus 230, to detect denitration
The pressure difference of the upstream and downstream of device 230.By the way that above-mentioned pressure measuring unit is arranged in the utility model, can increase in stream pressure
It is big that the denitrating catalyst for cleaning or more renewing is carried out to denitrification apparatus 230 to when control point.Thus, it is possible to further increase flue gas
Chilling denitration association system carries out incineration flue gas the efficiency and effect of chilling denitration.
Specific embodiment according to the present utility model, can be according to the maintenance requirement of denitrating catalyst and to cooled flue gas
Catalytic denitration effect is cleaned or is replaced to denitrating catalyst.Flue gas chilling denitration connection can be not only further increased as a result,
Collaboration system carries out washing flue gas the efficiency and effect of chilling denitration, can also further increase the utilization rate of denitrating catalyst.
Specific embodiment according to the present utility model, the interior setting of cooled flue gas entrance 210 can have gas distribution net 240.This reality
With cooled flue gas being enable to be uniformly distributed in denitrating tower 200 by using above-mentioned setting in novel, and then can be into one
Step improves the efficiency and effect that denitration is carried out to cooled flue gas.
Specific embodiment according to the present utility model, gas distribution net 240 can be formed by acid resisting steel net.Thus, it is possible to effectively
It avoids gas distribution net 240 from being corroded, and then further increases the service life of gas distribution net 240.
Specific embodiment according to the present utility model, as shown in Fig. 2, flue gas chilling denitration association system can be wrapped further
It includes：Getter cover 400, getter cover 400 connect the open top of the cooled flue gas entrance 210 and ash bucket 300 of denitrating tower, getter cover
400 lower ending opening is more than upper end opening.By using above-mentioned setting in the utility model, cooled flue gas can be made to can smoothly enter into
Denitrating tower 200, and then the efficiency that denitration purification is carried out to cooled flue gas can be further increased.
The sectional area of specific embodiment according to the present utility model, the lower part of chilling tower 100 is gradually reduced.Thus, it is possible to
Further increase the effect that chilling and purification are carried out to incineration flue gas.
Specific embodiment according to the present utility model, the pollutant in incineration flue gas lodge in ash bucket 300, can be regular
Ash bucket 300 is cleared up, the waste in ash bucket 300 can be used as Hazardous Wastes Management, disposition.Thus, it is possible to effectively keep away
The pollutant and part alkali mist for exempting from incineration flue gas carrying pollute the environment.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
Identical embodiment or example need not be directed to by stating.Moreover, particular features, structures, materials, or characteristics described can be
It can be combined in any suitable manner in any one or more embodiments or example.In addition, without conflicting with each other, this field
Technical staff can carry out the feature of different embodiments or examples described in this specification and different embodiments or examples
In conjunction with and combination.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are in the scope of the utility model
Inside it can make changes, modifications, alterations, and variations to the above described embodiments.
Claims (8)
1. a kind of flue gas chilling denitration association system, which is characterized in that including：
The top of chilling tower, the chilling tower has smoke inlet, and the bottom end of the chilling tower is exported with cooled flue gas, described
The top of chilling tower is provided with the spraying device suitable for spraying lye into the chilling tower；
There is cooled flue gas entrance, the denitrating tower top to be exported with purifying smoke for the bottom end of denitrating tower, the denitrating tower, institute
It states and is provided with denitrification apparatus in denitrating tower；
Ash bucket, the ash bucket are located at the lower section of the chilling tower and the denitrating tower, and there is interval to be arranged at the top of the ash bucket
Two opening, it is described two opening respectively with the cooled flue gas outlet and the cooled flue gas entrance be connected, the ash
The bottom end of bucket has waste outlet.
2. flue gas chilling denitration association system according to claim 1, which is characterized in that the spraying device includes lye
Storage tank and nozzle, the alkali liquor storage tank are suitable for holding water purification containing ammonia, and the nozzle is suitable for containing described in sprinkling into the chilling tower
Ammonia water purification.
3. flue gas chilling denitration association system according to claim 1, which is characterized in that the denitrification apparatus is board-like de-
Denox catalyst.
4. flue gas chilling denitration association system according to claim 3, which is characterized in that the plate-type denitration catalyst
Thickness is 0.8-1.5m.
5. flue gas chilling denitration association system according to claim 1, which is characterized in that set in the cooled flue gas entrance
It is equipped with gas distribution net.
6. flue gas chilling denitration association system according to claim 5, which is characterized in that the gas distribution net is by acidproof steel mesh
It is formed.
7. flue gas chilling denitration association system according to claim 1, which is characterized in that further comprise：Getter cover, institute
State the open top that getter cover connects the cooled flue gas entrance and the ash bucket of the denitrating tower, the lower ending opening of the getter cover
More than upper end opening.
8. flue gas chilling denitration association system according to claim 1, which is characterized in that the lower part of the chilling tower is cut
Area is gradually reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721634059.1U CN207755874U (en) | 2017-11-29 | 2017-11-29 | Flue gas chilling denitration association system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721634059.1U CN207755874U (en) | 2017-11-29 | 2017-11-29 | Flue gas chilling denitration association system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207755874U true CN207755874U (en) | 2018-08-24 |
Family
ID=63189433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721634059.1U Active CN207755874U (en) | 2017-11-29 | 2017-11-29 | Flue gas chilling denitration association system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207755874U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109833671A (en) * | 2017-11-29 | 2019-06-04 | 中国瑞林工程技术有限公司 | Flue gas chilling denitration association system |
-
2017
- 2017-11-29 CN CN201721634059.1U patent/CN207755874U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109833671A (en) * | 2017-11-29 | 2019-06-04 | 中国瑞林工程技术有限公司 | Flue gas chilling denitration association system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102022305B1 (en) | Method and apparatus for denitration and desulfurization of and dust removal from FCC tail gas by ammonia-based process | |
| CN105214496B (en) | A kind of dedusting and denitrification integrated device | |
| CN100425325C (en) | Dusted composite SCR smoke denitration and its denitrating catalytic reactor | |
| CN100475314C (en) | Control technique and apparatus for flue gas NOx of cement kiln | |
| CN103406006A (en) | SCR (Selective Catalytic Reduction) denitration device for NOx control of rotary cement kiln | |
| CN109364741A (en) | A kind of cement kiln flue gas dry desulfurization and high dirt SCR denitration device and technique | |
| CN208599485U (en) | A kind of high-temperature dust removal SCR denitration integral process device | |
| CN104399371A (en) | An integrated method and device for medium and low temperature denitrification and dust removal thermal analysis | |
| CN109603539A (en) | A kind of industrial flue gas high temperature desulfurization, denitrification and dust removal system and its treatment method | |
| CN204093254U (en) | Medium and low temperature flue gas desulfurization, dust removal, denitrification and denitrification catalyst thermal analysis integrated device | |
| CN203494378U (en) | SCR (Selective Catalytic Reduction) denitration device for controlling NOx of rotary cement kiln | |
| CN106582286B (en) | Flue gas purification device and method | |
| CN105240093B (en) | A kind of diesel engine exhaust gas purification device | |
| CN103768930B (en) | The dust-proof Benitration reactor of FCC regenerated flue gas | |
| CN207755874U (en) | Flue gas chilling denitration association system | |
| CN101664639B (en) | Pre-dust removal and ammonia injection mixed flue for SCR denitrification system | |
| KR100963910B1 (en) | Regenerative exhaust gas denitrification system | |
| CN209564842U (en) | A kind of collaboration of sintering flue gas SCR denitration takes off white device | |
| CN209362230U (en) | A kind of cement kiln flue gas dry desulfurization and high dirt SCR denitration device | |
| CN109316952B (en) | Flue gas ultralow emission equipment and process in non-electric field | |
| CN204933244U (en) | NOx removal device in coal-burning power plant's coal-powder boiler flue gas | |
| CN109323274A (en) | It is a kind of can denitration heat accumulating type incineration device | |
| CN108499344A (en) | A kind of biomass flue gas dust-removal and desulfurizing denitrating system | |
| CN211346371U (en) | Flue gas treatment system suitable for heat recovery coke oven | |
| CN205627637U (en) | Low temperature deNOx systems |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |