CN205252865U - Get rid of equipment that burns oxynitrides in flue gas - Google Patents
Get rid of equipment that burns oxynitrides in flue gas Download PDFInfo
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- CN205252865U CN205252865U CN201521129885.1U CN201521129885U CN205252865U CN 205252865 U CN205252865 U CN 205252865U CN 201521129885 U CN201521129885 U CN 201521129885U CN 205252865 U CN205252865 U CN 205252865U
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Abstract
The utility model discloses a get rid of equipment that burns oxynitrides in flue gas, include liquid oxygen storage tank, evaporimeter, nitrogen gas injection blender, ozone generator, wet -type scrubbing tower, get rid of oxynitrides reactor, alkali formula scrubbing tower. The access connection of liquid oxygen storage tank and evaporimeter, nitrogen gas pours into the import and export one -to -one ground and the export of evaporimeter and ozone generator's access connection of blender into, the flue gas pipeline intercommunication is burned at the lower part import and the upper reaches of wet -type scrubbing tower, get rid of the top import of oxynitrides reactor and the top exit linkage of wet -type scrubbing tower, its upper portion import and ozone generator's exit linkage, the lower part import of alkali formula scrubbing tower is access to low reaches and is burned flue gas pipeline with the lower extreme exit linkage of getting rid of the oxynitrides reactor, its top export. The utility model discloses a get rid of equipment that burns oxynitrides in flue gas can get rid of more high -efficient, safer, more labour saving and time saving and burn oxynitrides in the flue gas.
Description
Technical field
The utility model relates to a kind of equipment of removing oxynitrides in incineration flue gas.
Background technology
Total institute is known, after object burns, can produce oxynitrides, and the oxynitrides after burning in flue gas needsCarry out just entering atmosphere after purified treatment. Remove at present the method master who burns oxynitrides in rear flue gasWant selective non-catalytic reduction technology (SNCR) and SCR technology (SCR). But existingThere is following shortcoming and defect in some technology:
(1) SNCR technology (SNCR) is to utilize ammoniacal liquor or urea liquid as reducing agent,Reducing agent is sprayed in the flue gas of high temperature (800-100 DEG C), reducing agent and oxynitrides reaction generate nitrogenGas. But there is following shortcoming and defect in this technology:
A) oxynitrides removal efficiency is low, and removal efficiency is only at 50-60%;
B) easily produce the escaping of ammonia, escape is entered subsequent processing by unreacted ammonia, will cause ammonia pollution;
C) reaction temperature is difficult to control, if temperature is high, reducing agent will be oxidized to oxynitrides; AsFruit temperature is low, will there will be more the escaping of ammonia.
(2) SCR technology (SCR) is to utilize ammoniacal liquor or urea liquid as reducing agent,Under the effect of catalyst, oxynitrides is reduced to nitrogen. But there is following shortcoming and defect in this technology:
Will reduce removal efficiency if a) contain the materials such as sulfur dioxide in flue gas, and make catalyst poisoning;And in incineration flue gas, often contain the materials such as sulfur dioxide;
If b) contain dust in flue gas, will cause catalyst filling layer to stop up, will greatly reduce nitrogen oxygenThe removal efficiency of compound.
Utility model content
The purpose of this utility model is to overcome the defect of prior art and provides in a kind of removal incineration flue gasThe equipment of oxynitrides, it can remove nitrogen oxygen in incineration flue gas more efficient, safer, more time saving and energy savinglyCompound, and operation cost is low, easy to operate.
The purpose of this utility model is achieved in that a kind of establishing of oxynitrides in incineration flue gas of removingStandby, comprise liquid oxygen gas storage tank, evaporimeter, nitrogen injecting mixer, ozone generator, wet scrubber tower,Remove oxynitrides reactor, alkali formula scrubbing tower, wherein,
Described liquid oxygen gas storage tank is connected with the import of described evaporimeter;
The import of described nitrogen injecting mixer and outlet correspondingly with the outlet of described evaporimeter and smellyThe import of Oxygen Generator connects;
The lower inlet of described wet scrubber tower and upstream incineration flue gas pipeline communication;
The top import of described removal oxynitrides reactor and the outlet of the top of described wet scrubber tower connectConnect, the upper inlet of this removal oxynitrides reactor is connected with the outlet of described ozone generator;
The lower end outlet of the lower inlet of described alkali formula scrubbing tower and described removal oxynitrides reactor connectsConnect, downstream incineration flue gas pipeline is led in the top outlet of this alkali formula scrubbing tower.
In removal incineration flue gas of the present utility model, the technical scheme of the equipment of oxynitrides, is to utilize oxygenGenerate ozone, the ozone of generation be injected into and removed in oxynitrides reactor, in reactor ozone andOxynitrides reaction generates dinitrogen pentoxide, and dinitrogen pentoxide will water-soluble generation nitric acid, thereby realizeRemove the object of oxynitrides in flue gas.
In removal incineration flue gas of the present utility model, the equipment of oxynitrides has the following advantages:
1) more than can largely improving the removal efficiency to 90% of oxynitrides;
2) avoid the escaping of ammonia of conventional method of denitration, protection of the environment.
Brief description of the drawings
Fig. 1 is the structural representation of the equipment of oxynitrides in removal incineration flue gas of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Refer to Fig. 1, in removal incineration flue gas of the present utility model, the equipment of oxynitrides, comprises liquid stateOxygen storage tank 1, evaporimeter 2, nitrogen injecting mixer 3, ozone generator 5, wet scrubber tower 7, goExcept oxynitrides reactor 8, alkali formula scrubbing tower 9, wherein:
Liquid oxygen gas storage tank 1 is connected with the import of evaporimeter 2;
The import of nitrogen injecting mixer 3 and outlet occur with outlet and the ozone of evaporimeter 2 correspondinglyThe import of device 5 connects;
The lower inlet of wet scrubber tower 7 is communicated with upstream incineration flue gas 6;
The top import of removal oxynitrides reactor 8 and the top outlet of wet scrubber tower 7 are connected; ShouldThe upper inlet of removing oxynitrides reactor 8 is connected with the outlet of ozone generator 5;
The lower inlet of alkali formula scrubbing tower 9 is connected with the lower end outlet of removing oxynitrides reactor 8, shouldDownstream incineration flue gas pipeline is led in the top outlet of alkali formula scrubbing tower 9.
In removal incineration flue gas of the present utility model, the technological principle of the equipment of oxynitrides is:
1. liquid oxygen enters evaporimeter 2 by liquid oxygen gas storage tank 1, changes the oxygen of gaseous state into and enters nitrogenGas injecting mixer 3;
2. nitrogen 4 is injected into nitrogen injecting mixer 3, with oxygen mix;
3. mixed nitrogen and oxygen enter ozone generator 5, and generate ozone; Concrete chemical reactionFormula:
NO+O3→NO2+O2
4. the gas that contains ozone enters removes oxynitrides reactor 8, meanwhile, and upstream incineration flue gas 6Through the washing of wet scrubber tower 7 (cleaning solution is evenly sprayed on the surface of filling material to keep moistening from nozzle)After enter and remove oxynitrides reactor 8, be oxidized with nitrogen removing ozone in oxynitrides reactor 8Compound reaction generates dinitrogen pentoxide, then enters alkali formula scrubbing tower 9; Concrete chemical equation:
2NO2+O3→N2O5+O2
5. dinitrogen pentoxide is absorbed in alkali formula scrubbing tower 9, and dinitrogen pentoxide will water-soluble generation nitric acid,Thereby oxynitrides in removal flue gas, the flue gas being purified; Concrete chemical equation:
N2O5+2H2O→2HNO3
6. the flue gas 10 after purifying enters down-stream system.
The equipment of oxynitrides in removal incineration flue gas of the present utility model, is to utilize oxygen to generate ozone,The ozone of generation is injected into and is removed in oxynitrides reactor, ozone and oxynitrides in reactorReaction generates dinitrogen pentoxide, and dinitrogen pentoxide will water-soluble generation nitric acid, removes in flue gas thereby realizeThe object of oxynitrides.
In removal incineration flue gas of the present utility model, the equipment of oxynitrides has the following advantages:
1) more than can largely improving the removal efficiency to 90% of oxynitrides;
2) avoid the escaping of ammonia of conventional method of denitration, protection of the environment.
Above embodiment is only for illustration of the utility model, but not to restriction of the present utility model, relevant skillThe technical staff in art field, in the situation that not departing from spirit and scope of the present utility model, can also makeVarious conversion or modification, therefore all technical schemes that are equal to also should belong to category of the present utility model, shouldLimited by each claim.
Claims (1)
1. remove an equipment for oxynitrides in incineration flue gas, comprise liquid oxygen gas storage tank, evaporimeter,Nitrogen injecting mixer, ozone generator, wet scrubber tower, removal oxynitrides reactor, alkali formula are washedWash tower, it is characterized in that,
Described liquid oxygen gas storage tank is connected with the import of described evaporimeter;
The import of described nitrogen injecting mixer and outlet correspondingly with the outlet of described evaporimeter and smellyThe import of Oxygen Generator connects;
The lower inlet of described wet scrubber tower and upstream incineration flue gas pipeline communication;
The top import of described removal oxynitrides reactor and the outlet of the top of described wet scrubber tower connectConnect, the upper inlet of this removal oxynitrides reactor is connected with the outlet of described ozone generator;
The lower end outlet of the lower inlet of described alkali formula scrubbing tower and described removal oxynitrides reactor connectsConnect, downstream incineration flue gas pipeline is led in the top outlet of this alkali formula scrubbing tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521129885.1U CN205252865U (en) | 2015-12-30 | 2015-12-30 | Get rid of equipment that burns oxynitrides in flue gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521129885.1U CN205252865U (en) | 2015-12-30 | 2015-12-30 | Get rid of equipment that burns oxynitrides in flue gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205252865U true CN205252865U (en) | 2016-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521129885.1U Active CN205252865U (en) | 2015-12-30 | 2015-12-30 | Get rid of equipment that burns oxynitrides in flue gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205252865U (en) |
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2015
- 2015-12-30 CN CN201521129885.1U patent/CN205252865U/en active Active
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