CN206215047U - Combined denitration reactor - Google Patents
Combined denitration reactor Download PDFInfo
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- CN206215047U CN206215047U CN201621304932.6U CN201621304932U CN206215047U CN 206215047 U CN206215047 U CN 206215047U CN 201621304932 U CN201621304932 U CN 201621304932U CN 206215047 U CN206215047 U CN 206215047U
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- reactor
- ammonia
- catalyst carrier
- gas
- spraying device
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Abstract
The utility model provides a kind of combined denitration reactor, wherein, including reactor, ammonia-gas spraying device, catalyst carrier and screen cloth；In the structure that the reactor lower part is set to gradually extend out from the bottom to top, the reactor middle and upper part is set to straight-tube shape, the bottom of the reactor is provided with gas approach, and the top of the reactor is provided with exhanst gas outlet；The ammonia-gas spraying device includes ammonia storage tank and spray ammonia pipe, and the ammonia-gas spraying device is arranged on the middle and lower part in the reactor；The catalyst carrier is erected in the reactor by support and is located at the top of the spray ammonia pipe；The screen cloth is erected between the spray ammonia pipe and the catalyst carrier by support.Using above-mentioned technical proposal, the utility model is provided with ammonia-gas spraying device and catalyst carrier two parts also original structure to carry out purified treatment to flue gas, substantially increases the purification efficiency of flue gas and has saved cost.
Description
Technical field
The utility model is related to a kind of denitrification apparatus, specifically a kind of combined denitration reactor.
Background technology
In the tail gas that coal-burning power plant or solid waste burning factory produce when running containing very high concentrations nitrogen oxides (including NO,
NO2, N2O etc., are referred to as NOx), the control and improvement of this pollutant are always the study hotspot in International Environmental Protection field.At present
Current denitrating technique is mainly using selective catalytic reduction reaction method (SCR) and SNCR method (SNCR).
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 the process system is complicated, take up an area big, investment height, and because expensive catalyst needs
Periodic replacement, running cost is also increased.SNCR method (SNCR) take up an area it is small, invest it is low, efficiency is moderate, it is easy to change
Make, can preferably meet the current environment protection emission requirement of China, be widely used successively in correlation engineering at home in recent years.
But its cumbersome, cost of material of control is high, equipment investment is high.
Utility model content
The purpose of this utility model is to provide a kind of combined denitration reactor, to solve existing denitration device high cost, take off
The low problem of nitre efficiency.
What the utility model was realized in：A kind of combined denitration reactor, wherein, including reactor, ammonia-gas spraying device, urge
Agent carrier and screen cloth；In the structure that the reactor lower part is set to gradually extend out from the bottom to top, the reactor middle and upper part
Straight-tube shape is set to, the bottom of the reactor is provided with gas approach, the top of the reactor is provided with flue gas to be gone out
Mouthful；
The ammonia-gas spraying device include ammonia storage tank and spray ammonia pipe, the ammonia-gas spraying device be arranged in the reactor under
Portion；The catalyst carrier is erected in the reactor by support and is located at the top of the spray ammonia pipe；The screen cloth leads to
Support is crossed to be erected between the spray ammonia pipe and the catalyst carrier.
Preferably, the catalyst carrier is tabular, and the hole passed through for flue gas is provided with the catalyst carrier
Battle array.
Preferably, the catalyst carrier quantity is three layers, is erected at from the bottom to top in the reactor successively.
Preferably, it is additionally provided with screen cloth in the smoke outlet.
Using above-mentioned technical proposal, the utility model is provided with ammonia-gas spraying device and catalyst carrier two parts also original structure comes
Purified treatment is carried out to flue gas, the purification efficiency of flue gas is substantially increased and has been saved cost.
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.
In figure：1-reactor, 2-gas approach, 3-exhanst gas outlet, 4-ammonia storage tank, 5-ammonia-gas spraying device, 6-catalysis
Agent carrier, 7-screen cloth.
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 utility model provides a kind of combined denitration reactor, including reactor body 1, reactor 1
Bottom be set to the structure for gradually extending out from the bottom to top, it is up beneficial to flue gas.The utility model is additionally provided with ammonia-gas spraying device, spray
Ammonia device includes 4 grades of spray ammonia pipes 5 of ammonia storage tank, and ammonia-gas spraying device is arranged on the middle and lower part of reactor, and finite concentration is sprayed by spray ammonia pipe
Ammoniacal liquor, there is reduction reaction with flue gas, reduce a part of NOX.Further, in order to improve purifying rate, in reactor 1
Top sets catalyst carrier 6, and catalyst carrier 6 further reduces the NO in flue gasX, in the utility model, there is provided three layers
Catalyst carrier, in practical operation, catalyst carrier quantity can determine as needed.
Catalyst carrier 6 in the utility model is platy structure, and the Kong Zhen passed through for flue gas is provided with plate body,
The contact area of increase flue gas and catalyst.
In order to ensure the cleannes of catalyst support surface, the utility model sets between ammonia-gas spraying device and catalyst carrier
Screen cloth is equipped with, is used to filter out the flying dust of catalyst support surface.
Claims (4)
1. a kind of combined denitration reactor, it is characterized in that,
Including reactor, ammonia-gas spraying device, catalyst carrier and screen cloth；
In the structure that the reactor lower part is set to gradually extend out from the bottom to top, the reactor middle and upper part is set to straight tube
Shape, gas approach is provided with the bottom of the reactor, and the top of the reactor is provided with exhanst gas outlet；
The ammonia-gas spraying device includes ammonia storage tank and spray ammonia pipe, and the ammonia-gas spraying device is arranged on the middle and lower part in the reactor；Institute
State the top that catalyst carrier is erected in the reactor by support and is located at the spray ammonia pipe；The screen cloth passes through support
It is erected between the spray ammonia pipe and the catalyst carrier.
2. combined denitration reactor according to claim 1, it is characterized in that, the catalyst carrier is tabular, described
The Kong Zhen passed through for flue gas is provided with catalyst carrier.
3. combined denitration reactor according to claim 1, it is characterized in that, the catalyst carrier quantity is three layers, according to
It is secondary to be erected at from the bottom to top in the reactor.
4. combined denitration reactor according to claim 1, it is characterized in that, it is additionally provided with sieve in the smoke outlet
Net.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621304932.6U CN206215047U (en) | 2016-11-30 | 2016-11-30 | Combined denitration reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621304932.6U CN206215047U (en) | 2016-11-30 | 2016-11-30 | Combined denitration reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206215047U true CN206215047U (en) | 2017-06-06 |
Family
ID=58783920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621304932.6U Active CN206215047U (en) | 2016-11-30 | 2016-11-30 | Combined denitration reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206215047U (en) |
-
2016
- 2016-11-30 CN CN201621304932.6U patent/CN206215047U/en active Active
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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 |