CN108579418A - A kind of ammonium hydroxide gasification burner and its working method - Google Patents
A kind of ammonium hydroxide gasification burner and its working method Download PDFInfo
- Publication number
- CN108579418A CN108579418A CN201810426526.4A CN201810426526A CN108579418A CN 108579418 A CN108579418 A CN 108579418A CN 201810426526 A CN201810426526 A CN 201810426526A CN 108579418 A CN108579418 A CN 108579418A
- Authority
- CN
- China
- Prior art keywords
- ammonium hydroxide
- gasification burner
- outer barrel
- smoke mixture
- inlet
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/90—Injecting reactants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
- Chimneys And Flues (AREA)
Abstract
The invention discloses a kind of ammonium hydroxide gasification burner and its working method, including outer barrel, inner sleeve, gas inlet and ammonia inlet at the top of inside and outside sleeve annular space and outer barrel, the smoke mixture outlet of outer barrel bottom baffling mouth and outer barrel top.Compared with prior art, the temperature for being entered the flue gas itself of Reactor inlet using boiler or kiln is vaporized ammonium hydroxide, and pass through internal baffling, hot wind is set to be come into full contact with ammonium hydroxide, improve the drying evaporation efficiency of ammonium hydroxide, residence time of the hot wind in reactor is also extended simultaneously, height for reactor is reduced, has saved the energy.
Description
Technical field
The present invention relates to chemical industry vaporising device field more particularly to a kind of ammonium hydroxide gasification burner and its working methods.
Background technology
Selective catalytic reduction flue gas denitration (SCR) is the mature technology that a kind of operation and control is simple, denitration efficiency is high.Ammonia
Base reductant under the action of catalyst, selectively occurs reduction reaction with the nitrogen oxides in flue gas and generates N2 and H2O, to
The nitrogen oxides in flue gas is removed, realizes pollution reduction.
Denitrification reducing agent mainly has anhydrous NH3 and ammonium hydroxide at present.The storage and transport and management of anhydrous NH3 has stringent
Management program, container and pipeline of contact etc. belong to pressure vessel scope.But the solubility of NH3 in water is very big
, after NH3 dissolvings ammonium hydroxide is normally referred to as NH4OH-.The storage of ammonium hydroxide anhydrous NH3 compared with transport and management is relatively easy
And safety is more, to ensure that the safe long-term operation of flue gas SCR denitration reaction unit of boiler or kiln, general enterprises select ammonia
Water reacts reducing agent as SCR denitration, to improve SCR denitration reaction efficiency, it is necessary to after ammonium hydroxide is vaporized with boiler or kiln
Flue gas could enter SCR denitration reactor and carry out series of chemical after being sufficiently mixed.Ammonium hydroxide vaporization efficency is better, and SCR is de-
The chemical reaction of nitre is better, in order to ensure the completeness of SCR denitration reaction.
In the prior art, ammonium hydroxide vapourizing unit mostly uses single flow, ammonium hydroxide droplet radial through evaporator mode.It is this
That there are dwell time in the tower is short for vaporizer, the bigger disadvantage of the consumption energy, more demanding to height for reactor.
Therefore, those skilled in the art is dedicated to developing a kind of ammonium hydroxide gasification burner and its working method, reaches increase ammonia
Water mist drips the effect of residence time reduction energy consumption, and then improves the reaction efficiency of SCR denitration.
Invention content
In view of the drawbacks described above of the prior art, the technical problem to be solved by the present invention is to so that ammonium hydroxide droplet is filled in vaporization
Residence time in setting increases, and reduces energy consumption.
To achieve the above object, the present invention provides a kind of ammonium hydroxide gasification burner, including outer barrel, inner sleeve, inside and outside sleeve rings
The smoke mixture on the gas inlet at the top of gap and outer barrel and ammonia inlet, outer barrel bottom baffling mouth and outer barrel top exports.
Further, spray gun is internally arranged in the ammonia inlet.
Further, the ammonia inlet is arranged at the smoke inlet.
Further, it is provided with insulating layer outside the outer barrel.
Further, the inner/outer tube annular space is provided with heating device.
Further, multiple support reinforcing plates are provided with outside the outer tube.
Further, the outer barrel bottom is provided with blowdown apparatus.
Further, the external bottom of the outer tube, middle part and top are provided with support reinforcing plate.
Further, the outer barrel bottom is provided with supporting table.
The present invention also provides a kind of working methods applied to the ammonium hydroxide gasification burner, include the following steps：
Step 1：High-temperature flue gas is discharged into the ammonium hydroxide gasification burner from the gas inlet；
Step 2：The high-temperature flue gas during entrance, by ammonium hydroxide droplet be discharged into from the ammonia inlet and with the height
Warm flue gas mixing, forms smoke mixture；
Step 3：The smoke mixture is passed through into the inner sleeve；
Step 4：The smoke mixture is passed through into the bottom baffling mouth baffling；
Step 5：The smoke mixture is passed through into the inner/outer tube annular space；
Step 6：The smoke mixture is exported from smoke mixture and is discharged；
Step 7：The smoke mixture is discharged into SCR denitration reactor.
Compared with prior art, the temperature of the flue gas itself of Reactor inlet is entered using boiler or kiln by ammonium hydroxide vapour
Change, and by internal baffling, hot wind is made to be come into full contact with ammonium hydroxide, improves the drying evaporation efficiency of ammonium hydroxide, while also extending
Residence time of the hot wind in reactor, height for reactor is reduced, the energy has been saved.
The technique effect of the design of the present invention, concrete structure and generation is described further below with reference to attached drawing, with
It is fully understood from the purpose of the present invention, feature and effect.
Description of the drawings
Fig. 1 is the structural schematic diagram of the preferred embodiment of the present invention；
Fig. 2 is the work flow diagram of the preferred embodiment of the present invention.
1- gas inlets；2- ammonia inlets；3- inner sleeves；The bottoms 4- baffling mouth；5- inside and outside sleeve annular spaces；6- flue gases mix
Object exports；7- outer barrels.
Specific implementation mode
The preferred embodiment of the present invention is introduced below with reference to Figure of description, keeps its technology contents more clear and convenient for reason
Solution.The present invention can be emerged from by many various forms of embodiments, and protection scope of the present invention is not limited only to text
In the embodiment mentioned.
In the accompanying drawings, the identical component of structure is indicated with same numbers label, everywhere the similar component of structure or function with
Like numeral label indicates.The size and thickness of each component shown in the drawings are to be arbitrarily shown, and there is no limit by the present invention
The size and thickness of each component.In order to keep diagram apparent, some places suitably exaggerate the thickness of component in attached drawing.
During the flue gas SCR denitration of conventional boiler or kiln, SCR denitration is generally titanium-based honeycomb fashion and is
It is main, to ensure the denitration efficiency of SCR denitration, it is desirable that the flue gas of boiler or kiln enters the temperature of SCR denitration reactor
240C ° or more is had to be larger than, NO, NO2 are reduced by chemical reaction, achieve the purpose that denitration.General enterprises select ammonium hydroxide to make
For SCR denitration react reducing agent, for improve SCR denitration reaction efficiency, it is necessary to after ammonium hydroxide is vaporized with boiler or the flue gas of kiln
SCR denitration reactor could be entered after being sufficiently mixed and carry out series of chemical.Ammonium hydroxide vaporization efficency is better, SCR denitration
Chemical reaction is better.
As depicted in figs. 1 and 2, ammonium hydroxide gasification burner includes outer barrel 7, inner sleeve 3, inside and outside sleeve annular space 5 and outer barrel top
Gas inlet 1 and ammonia inlet 2, the smoke mixture outlet 6 on outer barrel bottom baffling mouth 4 and outer barrel top；
The setting of ammonia inlet 2 is internally provided with multiple ammonia water spray guns near smoke inlet 1, and to cylinder, works as high-temperature flue gas
When into smoke inlet 1, ammonium hydroxide forms ammonium hydroxide droplet by spray gun, is sufficiently mixed with high-temperature flue gas；
Outer tube outer bottom, middle part and top are provided with multiple support reinforcing plates in multiple directions, increase ammonium hydroxide gasification furnace
Cylinder stability；
Bottom baffling mouth is provided with guiding device；
Outer barrel bottom is provided with blowdown apparatus, for collecting and discharging the solid and liquid that are generated in vaporescence；
Vaporization furnace bottom is provided with supporting table, carries the weight of furnace body.
The working method of ammonium hydroxide gasification burner, includes the following steps：
Step 1：High-temperature flue gas (240-420C °) is discharged into ammonium hydroxide gasification burner from gas inlet 1；
Step 2：Ammonium hydroxide droplet is discharged into from ammonia inlet 2 and is mixed with high-temperature flue gas during entrance by high-temperature flue gas,
Form smoke mixture；
Step 3：Smoke mixture is passed through into inner sleeve 3；
Step 4：Smoke mixture is entered into 4 baffling of bottom baffling mouth from top to bottom；
Step 5：Smoke mixture is further vaporized through inner/outer tube annular space 5 upwards；
Step 6：Smoke mixture is discharged from smoke mixture outlet 6；
Step 7：Smoke mixture is discharged into SCR denitration reactor through wind turbine.
Ammonium hydroxide gasification burner in embodiment realizes following advantageous effect：
1, the incorporation time for extending high-temperature flue gas and ammonium hydroxide droplet, makes vaporization efficency improve, and SCR denitration reaction efficiency carries
High 3-5%.
2, the temperature for being entered the flue gas itself of SCR denitration Reactor inlet using boiler or kiln is vaporized ammonium hydroxide, is reduced
The consumption of other energy.Electricity consumption consumption is only the 10% of traditional electrical heating ammonium hydroxide evaporator consumption.
The preferred embodiment of the present invention has been described in detail above.It should be appreciated that the ordinary skill of this field is without wound
The property made labour, which according to the present invention can conceive, makes many modifications and variations.Therefore, all technician in the art
Pass through the available technology of logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Scheme, all should be in the protection domain being defined in the patent claims.
Claims (10)
1. a kind of ammonium hydroxide gasification burner, which is characterized in that including outer barrel, inner sleeve, inside and outside sleeve annular space and outer barrel top
Gas inlet and ammonia inlet, the smoke mixture outlet on the outer barrel bottom baffling mouth and the outer barrel top.
2. ammonium hydroxide gasification burner as described in claim 1, which is characterized in that spray gun is internally arranged in the ammonia inlet.
3. ammonium hydroxide gasification burner as described in claim 1, which is characterized in that the ammonia inlet is arranged in the smoke inlet
Place.
4. ammonium hydroxide gasification burner as described in claim 1, which is characterized in that be provided with insulating layer outside the outer barrel.
5. ammonium hydroxide gasification burner as described in claim 1, which is characterized in that the inner/outer tube annular space is provided with heating device.
6. ammonium hydroxide gasification burner as described in claim 1, which is characterized in that be provided with multiple support reinforcing plates outside the outer tube.
7. ammonium hydroxide gasification burner as described in claim 1, which is characterized in that the outer barrel bottom is provided with blowdown apparatus.
8. ammonium hydroxide gasification burner as claimed in claim 6, which is characterized in that the external bottom of outer tube, middle part and top setting
There is support reinforcing plate.
9. ammonium hydroxide gasification burner as described in claim 1, which is characterized in that the outer barrel bottom is provided with supporting table.
10. a kind of working method applied to ammonium hydroxide gasification burner as described in claim 1, which is characterized in that including following step
Suddenly：
Step 1：High-temperature flue gas is discharged into the ammonium hydroxide gasification burner from the gas inlet；
Step 2：The high-temperature flue gas during entrance, by ammonium hydroxide droplet be discharged into from the ammonia inlet and with the high temperature cigarette
Gas mixes, and forms smoke mixture；
Step 3：The smoke mixture is passed through into the inner sleeve；
Step 4：The smoke mixture is passed through into the bottom baffling mouth baffling；
Step 5：The smoke mixture is passed through into the inner/outer tube annular space；
Step 6：The smoke mixture is exported from smoke mixture and is discharged；
Step 7：The smoke mixture is discharged into SCR denitration reactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810426526.4A CN108579418A (en) | 2018-05-07 | 2018-05-07 | A kind of ammonium hydroxide gasification burner and its working method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810426526.4A CN108579418A (en) | 2018-05-07 | 2018-05-07 | A kind of ammonium hydroxide gasification burner and its working method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108579418A true CN108579418A (en) | 2018-09-28 |
Family
ID=63621038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810426526.4A Pending CN108579418A (en) | 2018-05-07 | 2018-05-07 | A kind of ammonium hydroxide gasification burner and its working method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108579418A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040042946A1 (en) * | 2000-12-04 | 2004-03-04 | Gilles Vicard | Method and installation for purifying cement plant fumes |
| CN1605385A (en) * | 2004-09-17 | 2005-04-13 | 清华大学 | Annular space gas lifting type loop reactor |
| CN202538621U (en) * | 2012-04-11 | 2012-11-21 | 湖南安普诺环保科技有限公司 | Ammonia water gasification device for fume selective catalytic reduction (SCR) denitration process |
| CN202590593U (en) * | 2012-04-28 | 2012-12-12 | 湖南大学 | Dust-removal and denitration integrated device |
| CN203425719U (en) * | 2013-08-01 | 2014-02-12 | 苏州华瑞能泰发电技术有限公司 | Sleeve type denitration reactor used in laboratory |
| CN204502758U (en) * | 2014-12-31 | 2015-07-29 | 上海电气电站环保工程有限公司 | A kind of ammoniacal liquor gasification furnace |
-
2018
- 2018-05-07 CN CN201810426526.4A patent/CN108579418A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040042946A1 (en) * | 2000-12-04 | 2004-03-04 | Gilles Vicard | Method and installation for purifying cement plant fumes |
| CN1605385A (en) * | 2004-09-17 | 2005-04-13 | 清华大学 | Annular space gas lifting type loop reactor |
| CN202538621U (en) * | 2012-04-11 | 2012-11-21 | 湖南安普诺环保科技有限公司 | Ammonia water gasification device for fume selective catalytic reduction (SCR) denitration process |
| CN202590593U (en) * | 2012-04-28 | 2012-12-12 | 湖南大学 | Dust-removal and denitration integrated device |
| CN203425719U (en) * | 2013-08-01 | 2014-02-12 | 苏州华瑞能泰发电技术有限公司 | Sleeve type denitration reactor used in laboratory |
| CN204502758U (en) * | 2014-12-31 | 2015-07-29 | 上海电气电站环保工程有限公司 | A kind of ammoniacal liquor gasification furnace |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104831298B (en) | A kind of method and device of spray roasting regeneration stainless steel nitration mixture acid-washing waste acid | |
| CN102644922B (en) | Incineration treatment device for nitrogen-containing organic wastes and incineration treatment process | |
| US9593609B2 (en) | System and method for urea decomposition to ammonia in a side stream for selective catalytic reduction | |
| CN109442438A (en) | The comprehensive processing technique and system of a kind of organic exhaust gas containing ammonia and the organic wastewater containing ammonia | |
| CN101947413B (en) | Glass kiln denitration generating system | |
| CN104190253A (en) | Coke oven flue gas SCR denitration system | |
| CN103900391A (en) | Selective sintering machine flue gas heat exchange denitration system and method thereof | |
| CN205495310U (en) | Coke oven flue desulphurization of exhaust gas deNOx systems | |
| CN207680368U (en) | A kind of equipment for denitrifying flue gas based on temperature-compensating | |
| CN204421021U (en) | A kind of being used for contains N 2the Ω shape thermal oxidation device of O waste gas | |
| CN102614758A (en) | Urea-solution-based SCR (selective catalytic reduction) flue gas denitration process and device | |
| CN107401748B (en) | Secondary combustion, deacidification and denitration integrated device in dangerous waste incineration process | |
| CN107261837A (en) | It is a kind of to quote denitrification apparatus and technique that high-temperature flue gas carries out urea pyrolysis ammonia | |
| CN103463976A (en) | Sintering and pelletizing flue gas SCR denitration and dioxin removal apparatus | |
| CN104329946B (en) | A kind of coke oven flue exhaust gas denitration and the integral system of waste heat recovery | |
| CN110787609A (en) | Flue gas denitration device for tank furnace and denitration method thereof | |
| CN110180389A (en) | Flue gas treating process and its device in waste alumina regenerative process | |
| CN104016374A (en) | Novel urea pyrolysis furnace for denitrifying flue gas | |
| CN108317526A (en) | A kind of organic waste gas treatment device | |
| CN209378764U (en) | Can NO_x Reduction by Effective dangerous waste incineration tail gas processing unit | |
| CN108704464A (en) | Sintering flue gas desulfurization and denitrification and flue gas whitening comprehensive treatment system and process | |
| CN108579418A (en) | A kind of ammonium hydroxide gasification burner and its working method | |
| CN105665035B (en) | A kind of sulphur recovery hydrogenation catalyst is without discharge pre-vulcanization process and device | |
| CN208542022U (en) | Incineration flue gas non-catalytic reduction denitrating system based on high concentration reducing agent | |
| CN205216583U (en) | Full operating mode SCR denitration treatment system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180928 |