CN208839373U - A kind of ammonium hydroxide vaporising device for cement SCR denitration - Google Patents
A kind of ammonium hydroxide vaporising device for cement SCR denitration Download PDFInfo
- Publication number
- CN208839373U CN208839373U CN201821256792.9U CN201821256792U CN208839373U CN 208839373 U CN208839373 U CN 208839373U CN 201821256792 U CN201821256792 U CN 201821256792U CN 208839373 U CN208839373 U CN 208839373U
- Authority
- CN
- China
- Prior art keywords
- ammonium hydroxide
- spray gun
- gun body
- scr denitration
- vaporising device
- 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
Landscapes
- Treating Waste Gases (AREA)
- Chimneys And Flues (AREA)
Abstract
The utility model discloses a kind of ammonium hydroxide vaporising devices for cement SCR denitration, it includes double-current spray gun body, inlet air stack, hot electrostatic precipitator, exhaust pass and Benitration reactor, the double fluid spray gun body is arranged on inlet air stack, and the inlet air stack, hot electrostatic precipitator, exhaust pass and Benitration reactor are sequentially connected；The double fluid spray gun body is at least arranged two and is laid in inlet air stack surrounding in a ring, the double fluid spray gun body includes ammonium hydroxide pipeline and compressed air line, and the ammonia water pipe road is equipped with suspended body flowmeter for monitoring ammonia vol, compressed air hose road is equipped with the filtering pressure reducing valve for controlling compressed air pressure；The utility model carries out the evaporation of ammonium hydroxide using kiln tail high-temperature flue gas and is sufficiently mixed under the guide functions of hot electrostatic precipitator with flue gas, does not need other auxiliary thermal sources, reduces energy consumption.
Description
Technical field
The utility model belongs to the ammonium hydroxide evaporation technique field in denitrating system, and in particular to one kind is de- for cement SCR
The ammonium hydroxide vaporising device of nitre.
Background technique
When power industry SCR denitration technology uses ammonium hydroxide as reducing agent, using steam or secondary hot-air as heat source
Ammonium hydroxide is evaporated to ammonia, is uniformly sprayed in flue through dilution air dilution by ammonia-spraying grid, ammonia is made by mixer
It is sufficiently mixed with nitrogen oxides in effluent；Under the conditions of cement kiln process, without the heat sources such as cleaning hot wind or rich steam, if adopting
Electric heater is taken, energy consumption is very big.
Utility model content
The purpose of the utility model is to provide a kind of ammonium hydroxide vaporising devices for cement SCR denitration, utilize high-temperature flue gas
Ammonium hydroxide is evaporated to ammonia, other auxiliary thermal sources is not needed, reduces energy consumption.
The technical scheme adopted by the utility model is
A kind of ammonium hydroxide vaporising device for cement SCR denitration comprising double-current spray gun body, inlet air stack, high-temperature electric remove
Dirt device, exhaust pass and Benitration reactor, the double fluid spray gun body are arranged on inlet air stack, the inlet air stack, high temperature
Electric precipitator, exhaust pass and Benitration reactor are sequentially connected；
The double fluid spray gun body is at least arranged two and is laid in inlet air stack surrounding in a ring, the double fluid spray gun body packet
Ammonium hydroxide pipeline and compressed air line are included, the ammonia water pipe road is equipped with suspended body flowmeter, compression sky for monitoring ammonia vol
Air pipe is equipped with the filtering pressure reducing valve for controlling compressed air pressure.
The utility model is also characterized by:
One layer is at least arranged in the hot electrostatic precipitator for reducing the airflow-distribution board of vortex.
The airflow-distribution board includes airflow-distribution board ontology, vortex generator and the silk screen for being laid with multiple through-holes, institute
It states vortex generator and the air side of airflow-distribution board ontology is arranged in silk screen, the silk screen is arranged in airflow-distribution board ontology
On.
The hot electrostatic precipitator bottom is provided with the first ash bucket.
The Benitration reactor bottom is provided with the second ash bucket for collecting dust.
Two nozzles are at least arranged in each double-current spray gun body.
Compared with prior art, when the utility model is used, using the evaporation of kiln tail high-temperature flue gas progress ammonium hydroxide and in height
It is sufficiently mixed under the guide functions of warm electric precipitator with flue gas, does not need other auxiliary thermal sources, reduce energy consumption；Pass through two-fluid
Mutual cooperation between spray gun, inlet air stack hot electrostatic precipitator, exhaust pass and Benitration reactor makes cement industry nitrogen oxygen
Compound realizes minimum discharge, and environmental pollution regulation effect is obvious；Double-current spray gun body is arranged on inlet air stack, ammonium hydroxide is direct
Spray and complete being sufficiently mixed for ammonia and nitrogen oxides with deduster, save ammonium hydroxide vapo(u)rization system, dilution air system and
Ammonia-spraying grid system etc. simplifies entire denitrating system, shortens process route, reduces system temperature drop, reduces cost of investment, operation
Easy maintenance.
Detailed description of the invention
Fig. 1 is that the utility model embodiment provides a kind of structural representation of ammonium hydroxide vaporising device for cement SCR denitration
Figure；
Fig. 2 is that the utility model embodiment provides two-fluid spray in a kind of ammonium hydroxide vaporising device for cement SCR denitration
The artwork of rifle；
Fig. 3 is that the utility model embodiment provides two-fluid spray in a kind of ammonium hydroxide vaporising device for cement SCR denitration
The structural schematic diagram of rifle；
Fig. 4 is that the utility model embodiment provides air flow method in a kind of ammonium hydroxide vaporising device for cement SCR denitration
The structural schematic diagram of plate.
Wherein, 1. double-current spray gun body, 2. inlet air stacks, 3. hot electrostatic precipitators, 4. exhaust pass, 5. Benitration reactors,
11. ammonium hydroxide pipeline, 12. compressed air lines, 13. suspended body flowmeters, 14. filtering pressure reducing valves, 15. nozzles, 31. air flow methods
Plate, 32. first ash buckets, 51. second ash buckets, 311. airflow-distribution board ontologies, 312. vortex generators, 313. silk screens.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
The utility model embodiment provides a kind of ammonium hydroxide vaporising device for cement SCR denitration, as shown in Figure 1, it is wrapped
Double-current spray gun body 1, inlet air stack 2, hot electrostatic precipitator 3, exhaust pass 4 and Benitration reactor 5 are included, double-current spray gun body 1 is set
It sets on inlet air stack 2, inlet air stack 2, hot electrostatic precipitator 3, exhaust pass 4 and Benitration reactor 5 are sequentially connected；
In this way, being exported in cement kiln end preheater and flue gas being introduced into inlet air stack 2 by above structure, while double fluid
Spray gun body 1 is started to work, and will uniformly be sprayed into flue gas after reducing agent ammonia atomization, is evaporated to ammonia by flue-gas temperature,
Through hot electrostatic precipitator 3, the ammonia after making evaporation, which sufficiently carries out being uniformly mixed with nitrogen oxides, enters denitration by exhaust pass 4
In reactor 5, the evaporation and subsequent denitration process of ammonium hydroxide are realized.
As Figure 2-3, double-current spray gun body 1 is at least arranged two and is laid in 2 surrounding of inlet air stack, two-fluid in a ring
Spray gun 1 includes ammonium hydroxide pipeline 11 and compressed air line 12, and ammonium hydroxide pipeline 11 is equipped with the float-type for monitoring ammonia vol
Meter 13, compressed air line 12 are equipped with the filtering pressure reducing valve 14 for controlling compressed air pressure；
In this way, every double-current spray gun body 1 have two-way medium enter spray gun, be all the way 20% ammonia spirit, another way is
Compressed air, the effect of compressed air are to spray into inlet air stack 2 after being atomized ammonia spirit, the ammonia before every double-current spray gun body 1
Water lines be equipped with suspended body flowmeter to monitor the ammonia spirit of every double-current spray gun body 1, compressed air line is equipped with filtering and subtracts
Pressure valve makes double-current spray gun body 1 reach optimal atomizing effect to control the pressure of compressed air.
In addition, two nozzles 15 are at least arranged in each double-current spray gun body 1 for the uniformity for guaranteeing injection ammonium hydroxide.
One layer of airflow-distribution board 31 is at least set in hot electrostatic precipitator 3, and the ammonia and nitrogen oxides after making evaporation are abundant
It carries out entering Benitration reactor 5 by exhaust pass 4 after mixing.
As shown in figure 4, airflow-distribution board 31 includes the airflow-distribution board ontology 311 for being laid with multiple through-holes, vortex generation
The air side of airflow-distribution board ontology 311, silk screen 313 is arranged in device 312 and silk screen 313, vortex generator 312 and silk screen 313
It is arranged on airflow-distribution board ontology 311；
In this way, air-flow perpendicular through after the through-hole on airflow-distribution board ontology 311 occur throttling expansion phenomenon so that air-flow
It increases rapidly, static pressure decline occurs using the rectified action after-blow of the silk screen 313 on 311 ontology of airflow-distribution board to vortex
Device 312 constantly generates vortex, increases air-flow tubulence energy, and air-flow is accelerated to form complete turbulent flow, accelerates the transmitting of air-flow particle heat
Speed, realization air velocity and temperature are uniformly distributed.
3 bottom of hot electrostatic precipitator is provided with the first ash bucket 32, and 5 bottom of Benitration reactor is provided with the second ash bucket 51, this
Sample is carried out the collection of dust in denitrification process by the first ash bucket 32 and the second ash bucket 51, the dust after collection is finally converged
Enter in cement kiln end ash-transmission system.
Benitration reactor 5 includes catalyst layer, soot blower, heat exchanger, conveyance conduit and outlet, and catalyst layer is at least set
It sets two layers and every layer top and is laid with soot blower, one end of soot blower is connect by conveyance conduit with heat exchanger, and outlet setting exists
Below catalyst layer, catalyst layer is cellular catalyst and hole count is not more than 13 holes；
The present embodiment use process is as follows:
It is exported in cement kiln end preheater and flue gas is introduced into inlet air stack 2, while double-current spray gun body 1 is started to work, it will
It is uniformly sprayed into flue gas after reducing agent ammonia atomization, is evaporated to ammonia by flue-gas temperature, on electric precipitation inlet air stack 2
Be circular layout double-current spray gun body 1, will uniformly spray into flue gas after reducing agent ammonia atomization, is evaporated to ammonia by flue-gas temperature
Gas, while the airflow-distribution board 31 being arranged inside through hot electrostatic precipitator 3, make evaporation after ammonia and nitrogen oxides sufficiently into
Row, which is uniformly mixed, enters Benitration reactor 5 by exhaust pass 4；In addition, in the whole process, passing through the first ash bucket 32 and second
Ash bucket 51 carries out the collection of dust in denitrification process, and the dust after collection is finally imported in cement kiln end ash-transmission system.
Using the above scheme, compared with prior art, using the evaporation of kiln tail high-temperature flue gas progress ammonium hydroxide and in high-temperature electric
It is sufficiently mixed under the guide functions of deduster with flue gas, does not need other auxiliary thermal sources, reduce energy consumption；It is sprayed by two-fluid
Mutual cooperation between rifle, inlet air stack hot electrostatic precipitator, exhaust pass and Benitration reactor makes cement industry nitrogen oxidation
Object realizes minimum discharge, and environmental pollution regulation effect is obvious；Double-current spray gun body is arranged on inlet air stack, and ammonium hydroxide is directly sprayed
It penetrates and completes being sufficiently mixed for ammonia and nitrogen oxides with deduster, save ammonium hydroxide vapo(u)rization system, dilution air system and spray
Ammonia trellis system etc. simplifies entire denitrating system, shortens process route, reduces system temperature drop, reduces cost of investment, operation dimension
Shield is easy.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in
Change or replacement, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should
It is subject to the protection scope in claims.
Claims (6)
1. a kind of ammonium hydroxide vaporising device for cement SCR denitration, which is characterized in that it includes double-current spray gun body (1), air inlet cigarette
Road (2), hot electrostatic precipitator (3), exhaust pass (4) and Benitration reactor (5), it is described double fluid spray gun body (1) be arranged into
On gas flue (2), the inlet air stack (2), hot electrostatic precipitator (3), exhaust pass (4) and Benitration reactor (5) are successively
Connection；
The double fluid spray gun body (1) is at least arranged two and is laid in inlet air stack (2) surrounding in a ring, the double fluid spray gun body
It (1) include ammonium hydroxide pipeline (11) and compressed air line (12), the ammonium hydroxide pipeline (11) is equipped with for monitoring ammonia vol
Suspended body flowmeter (13), compressed air line (12) are equipped with the filtering pressure reducing valve (14) for controlling compressed air pressure.
2. a kind of ammonium hydroxide vaporising device for cement SCR denitration according to claim 1, which is characterized in that the height
One layer is at least arranged in warm electric precipitator (3) for reducing the airflow-distribution board (31) of vortex.
3. a kind of ammonium hydroxide vaporising device for cement SCR denitration according to claim 2, which is characterized in that the gas
Flow point fabric swatch (31) includes the airflow-distribution board ontology (311), vortex generator (312) and silk screen for being laid with multiple through-holes
(313), the vortex generator (312) and silk screen (313) are arranged at the air side of airflow-distribution board ontology (311), described
Silk screen (313) is arranged on airflow-distribution board ontology (311).
4. a kind of ammonium hydroxide vaporising device for cement SCR denitration according to claim 3, which is characterized in that the height
Warm electric precipitator (3) bottom is provided with the first ash bucket (32).
5. a kind of ammonium hydroxide vaporising device for cement SCR denitration according to claim 1-4, feature exist
In Benitration reactor (5) bottom is provided with the second ash bucket (51) for collecting dust.
6. a kind of ammonium hydroxide vaporising device for cement SCR denitration according to claim 5, which is characterized in that Mei Gesuo
It states double-current spray gun body (1) and two nozzles (15) is at least set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821256792.9U CN208839373U (en) | 2018-08-06 | 2018-08-06 | A kind of ammonium hydroxide vaporising device for cement SCR denitration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821256792.9U CN208839373U (en) | 2018-08-06 | 2018-08-06 | A kind of ammonium hydroxide vaporising device for cement SCR denitration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208839373U true CN208839373U (en) | 2019-05-10 |
Family
ID=66355188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821256792.9U Active CN208839373U (en) | 2018-08-06 | 2018-08-06 | A kind of ammonium hydroxide vaporising device for cement SCR denitration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208839373U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110181832A (en) * | 2019-06-18 | 2019-08-30 | 江苏贝尔机械有限公司 | A kind of double air outlet heat guns of combined type |
| CN111167307A (en) * | 2020-01-16 | 2020-05-19 | 东莞市应天环保工程有限公司 | High-temperature dust removal and denitration system and method |
| CN115364666A (en) * | 2022-10-10 | 2022-11-22 | 北京博奇电力科技有限公司 | Circulating mixing and ash removing system for injecting multi-component flue gas by SCR (Selective catalytic reduction) denitration reducing agent of cement kiln |
-
2018
- 2018-08-06 CN CN201821256792.9U patent/CN208839373U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110181832A (en) * | 2019-06-18 | 2019-08-30 | 江苏贝尔机械有限公司 | A kind of double air outlet heat guns of combined type |
| CN111167307A (en) * | 2020-01-16 | 2020-05-19 | 东莞市应天环保工程有限公司 | High-temperature dust removal and denitration system and method |
| CN115364666A (en) * | 2022-10-10 | 2022-11-22 | 北京博奇电力科技有限公司 | Circulating mixing and ash removing system for injecting multi-component flue gas by SCR (Selective catalytic reduction) denitration reducing agent of cement kiln |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208839373U (en) | A kind of ammonium hydroxide vaporising device for cement SCR denitration | |
| CN203043817U (en) | Selective catalytic reduction (SCR) denitration system capable of increasing flue gas temperature by utilizing high-temperature steam | |
| CN102614758A (en) | Urea-solution-based SCR (selective catalytic reduction) flue gas denitration process and device | |
| CN104548931A (en) | Device for producing ammonia gas through pyrolysis of urea by using high-temperature flue gas as heat source | |
| CN210699488U (en) | Full-green clean production process equipment for glass kiln | |
| CN109529503A (en) | A kind of waste incinerator high-temperature smoke purifier | |
| CN202527072U (en) | Selective catalytic reduction (SCR) smoke denitration device based on urea solutions or ammonia water | |
| CN106996577A (en) | A kind of block-resistant type air preheater step-by-step arrangement system | |
| CN217016043U (en) | Flue gas treatment system | |
| CN205386412U (en) | Boiler flue gas denitration system | |
| CN207708812U (en) | A kind of coke oven flue gas denitration, desulfurization integrated processing unit | |
| CN206858496U (en) | A kind of activating and reducing combustion with meagre oxygen system | |
| CN207025089U (en) | A kind of ammonia system processed that urea pyrolysis is directly realized using high temperature flue-gas from boiler | |
| CN209934471U (en) | Heat recycling ammonia water evaporation device for cement SCR denitration | |
| CN204543995U (en) | A kind of cement kiln end low-temperature smoke air SCR denitrification apparatus | |
| CN208612147U (en) | A kind of cement industry dedusting denitration device | |
| CN217139893U (en) | SCR denitration subregion system | |
| CN208194096U (en) | A kind of flue gas purification system utilizing technology based on fume afterheat | |
| CN202113779U (en) | Spiral-flow type ammonia spraying device used for SCR (Selective Catalytic Reduction) denitration system | |
| CN212262909U (en) | Flue gas denitration device of sintering machine | |
| CN105889963B (en) | A kind of heat-exchanger rig for wet desulfurization system | |
| CN208711444U (en) | A kind of SCR denitration is anti-blocking to propose effect system | |
| CN211098427U (en) | Medium-temperature type denitration system for flue gas of gas internal combustion engine | |
| CN203075835U (en) | Accident spraying system for preventing SCR (Selective Catalytic Reduction) denitration catalyst from overheating | |
| CN207943897U (en) | A kind of desulfurization wastewater Zero discharging system of the wide load denitration of cooperative achievement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |