CN206215048U - Board-like SCR denitration device - Google Patents
Board-like SCR denitration device Download PDFInfo
- Publication number
- CN206215048U CN206215048U CN201621304935.XU CN201621304935U CN206215048U CN 206215048 U CN206215048 U CN 206215048U CN 201621304935 U CN201621304935 U CN 201621304935U CN 206215048 U CN206215048 U CN 206215048U
- Authority
- CN
- China
- Prior art keywords
- board
- catalyst
- ammonia
- denitrating tower
- spray
- 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.)
- Expired - Fee Related
Links
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 82
- 239000003054 catalyst Substances 0.000 claims abstract description 43
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 38
- 239000007921 spray Substances 0.000 claims abstract description 25
- 239000007789 gas Substances 0.000 claims abstract description 13
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000003546 flue gas Substances 0.000 claims abstract description 11
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 239000000779 smoke Substances 0.000 abstract description 3
- 239000004071 soot Substances 0.000 abstract description 2
- 239000000428 dust Substances 0.000 description 6
- 238000013517 stratification Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Treating Waste Gases (AREA)
Abstract
The utility model provides a kind of board-like SCR denitration device, wherein, including ammonia feed system, denitrating tower and the board-like catalyst layer that is arranged in denitrating tower；Ammonia feed system includes liquid ammonia storage tank, liquid ammonia evaporator, ammonia/air mixer and spray ammonia pipe；Board-like catalyst layer includes that multilayer is erected at the board-like catalyst in denitrating tower by support, and board-like catalyst is provided with the Kong Zhen passed through for flue gas for running through；The grey device of spray is provided with above board-like catalyst layer；Spray ammonia pipe is arranged on the lower section of board-like catalyst；The bottom of denitrating tower is provided with gas approach, exhanst gas outlet is provided with the top of denitrating tower；Screen pack is provided with gas approach.The utility model employs the board-like catalyst big with smoke contacts area, and soot blower and spray ammonia pipe are respectively provided with above and below every laminated board type catalyst, ammonia and flue gas and the contact area of catalyst surface are increased, the utility model simple structure, denitration efficiency are high.
Description
Technical field
The utility model is related to a kind of denitrification apparatus, specifically a kind of board-like SCR denitration device.
Background technology
With the aggravation of greenhouse effects and haze weather, the great fume treatment pressure of the industry faces such as electric power, petrochemical industry
With pollutant control pressure, the emission control to major pollutants NOx in flue gas is progressively increased.For environmental protection, it is necessary to
NOx is administered, the pollution fundamentally administered caused by NOx emission is imperative.
The principle of selective catalytic reduction (SCR) is that under catalyst action, the amino in reducing agent is relatively low
At a temperature of nitrogen oxides is reduced into nitrogen.The technique denitration efficiency is high, worldwide turns into large scale industry pot
The prevailing technology of kiln gas denitration.But existing denitration device complex structure, flue gas and ammonia mixture homogeneity is high, denitration
Effect is general.
Utility model content
The purpose of this utility model is to provide a kind of board-like SCR denitration device, with solve existing denitrification apparatus complex structure,
Easy dust stratification, denitration efficiency problem not high.
What the utility model was realized in：A kind of board-like SCR denitration device, wherein,
Including ammonia feed system, denitrating tower and the board-like catalyst layer being arranged in denitrating tower；
The ammonia feed system includes liquid ammonia storage tank, liquid ammonia evaporator, ammonia/air mixer and spray ammonia pipe；
The board-like catalyst layer includes that multilayer is erected at the board-like catalyst in the denitrating tower, the plate by support
Formula catalyst is provided with the Kong Zhen passed through for flue gas for running through；The grey device of spray is provided with above the board-like catalyst layer；
The spray ammonia pipe is arranged on the lower section of the board-like catalyst；
The bottom of the denitrating tower is provided with gas approach, exhanst gas outlet is provided with the top of the denitrating tower；
Screen pack is provided with the gas approach.
Preferably, small inverted trapezoidal is gone up greatly under being shaped as of the hole battle array mesopore for being set on the board-like catalyst.
Preferably, the spray ammonia hole of opening upwards is evenly equipped with the spray ammonia pipe, is provided with above the spray ammonia hole
Distributing damper.
Preferably, the board-like catalyst number of plies is 3~5 layers.
Preferably, it is provided with temperature controller in the denitrating tower.
Using above-mentioned technical proposal, the utility model employs the board-like catalyst big with smoke contacts area, and every
Soot blower and spray ammonia pipe are respectively provided with above and below laminated board type catalyst, ammonia and flue gas and catalyst surface is increased
Contact area, the inverted trapezoidal hole battle array being arranged in board-like catalyst body further increases flue gas and catalyst contact area,
And be conducive to the dust of catalyst surface to fall.The utility model simple structure, denitration efficiency are high.
Brief description of the drawings
In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of the board-like catalyst body in the utility model.
In figure：1-denitrating tower, 2-liquid ammonia storage tank, 3-liquid ammonia evaporator, 4-ammonia/air mixer, 5-spray ammonia pipe,
6-board-like catalyst body, the grey device of 7-spray, 8-screen pack, 9-hole.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only section Example of the present utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of the utility model protection.
As shown in figure 1, the board-like SCR denitration device of the utility model includes denitrating tower 1, ammonia feed system and board-like catalyst
Layer.The bottom of denitrating tower is provided with air inlet, the top of denitrating tower is provided with gas outlet, board-like catalyst layer is arranged on de-
In nitre tower 1.Temperature controller is provided with denitrating tower 1.
Ammonia feed system includes the liquid ammonia storage tank 2, liquid ammonia evaporator 3, the ammonia/air mixer 4 that are sequentially connected by pipeline
And spray ammonia pipe 5, spray ammonia pipe 5 is stretched into denitrating tower 1, and is arranged on the lower section of board-like catalyst body 6.In order to improve ammonia and cigarette
The mixability of gas, is evenly equipped with spray ammonia hole on the spray ammonia pipe 5 in the utility model, being provided with shunting above spray ammonia hole leads
Plate, for making in the uniform loss of the ammonia of ejection to denitrating tower.
The utility model is provided with spraying grey device 7 in the top of every laminated board type catalyst body 6, and the grey device 7 of spray passes through high speed gas
Stream hangs the dust stratification being attached in board-like catalyst body 6, had both reduced dust stratification and had blocked, and alleviates catalyst failure, makes to urge again
Agent service efficiency reaches higher level.Preferably, the quantity of board-like catalyst body 6 is 3~5 layers.
The bottom of denitrating tower 1 is provided with screen pack 8, flue gas can tentatively be filtered, in case the dust of larger quality
Device in broken ring denitrating tower.
As shown in Fig. 2 be provided with board-like catalyst body 6 in the utility model to be shaped as lower going up small inverted trapezoidal greatly
On the one hand hole 9, this pore structure increased the contact area of flue gas and catalyst, and on the other hand the structure tightened up suitable for reading is to up
Flue gas serve stop cushioning effect so that smoke reaction is more abundant, and inclined surface makes the dust stratification in catalyst body 6 easy
In dropping.
Claims (5)
1. a kind of board-like SCR denitration device, it is characterized in that,
Including ammonia feed system, denitrating tower and the board-like catalyst layer being arranged in denitrating tower；
The ammonia feed system includes liquid ammonia storage tank, liquid ammonia evaporator, ammonia/air mixer and spray ammonia pipe；
The board-like catalyst layer includes that multilayer is erected at board-like catalyst in the denitrating tower by support, described board-like to urge
Agent is provided with the Kong Zhen passed through for flue gas for running through；The grey device of spray is provided with above the board-like catalyst layer；It is described
Spray ammonia pipe is arranged on the lower section of the board-like catalyst；
The bottom of the denitrating tower is provided with gas approach, exhanst gas outlet is provided with the top of the denitrating tower；Described
Screen pack is provided with gas approach.
2. board-like SCR denitration device according to claim 1, it is characterized in that, the Kong Zhen set on the board-like catalyst
Small inverted trapezoidal is gone up under being shaped as of mesopore greatly.
3. board-like SCR denitration device according to claim 1, it is characterized in that, be evenly equipped with the spray ammonia pipe opening to
On spray ammonia hole, be provided with distributing damper above the spray ammonia hole.
4. board-like SCR denitration device according to claim 1, it is characterized in that, the board-like catalyst number of plies is 3~5 layers.
5. board-like SCR denitration device according to claim 1, it is characterized in that, temperature control is provided with the denitrating tower
Device processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621304935.XU CN206215048U (en) | 2016-11-30 | 2016-11-30 | Board-like SCR denitration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621304935.XU CN206215048U (en) | 2016-11-30 | 2016-11-30 | Board-like SCR denitration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206215048U true CN206215048U (en) | 2017-06-06 |
Family
ID=58783926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621304935.XU Expired - Fee Related CN206215048U (en) | 2016-11-30 | 2016-11-30 | Board-like SCR denitration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206215048U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108744969A (en) * | 2018-06-12 | 2018-11-06 | 朋仁锋 | A kind of SCR industrial smokes method of denitration |
| CN117427492A (en) * | 2023-10-23 | 2024-01-23 | 山西阳煤九洲节能环保科技有限责任公司 | Environment-friendly flue gas denitration treatment device and treatment method thereof |
-
2016
- 2016-11-30 CN CN201621304935.XU patent/CN206215048U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108744969A (en) * | 2018-06-12 | 2018-11-06 | 朋仁锋 | A kind of SCR industrial smokes method of denitration |
| CN108744969B (en) * | 2018-06-12 | 2020-10-23 | 枣庄度秘信息科技有限公司 | SCR industrial flue gas denitration method |
| CN117427492A (en) * | 2023-10-23 | 2024-01-23 | 山西阳煤九洲节能环保科技有限责任公司 | Environment-friendly flue gas denitration treatment device and treatment method thereof |
| CN117427492B (en) * | 2023-10-23 | 2024-05-24 | 山西阳煤九洲节能环保科技有限责任公司 | Environment-friendly flue gas denitration treatment device and treatment method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Linfeng Inventor after: Ma Ruicun Inventor after: Huang Shumei Inventor before: Zhang Linfeng |
|
| 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: 20170606 |