CN207680368U - A kind of equipment for denitrifying flue gas based on temperature-compensating - Google Patents
A kind of equipment for denitrifying flue gas based on temperature-compensating Download PDFInfo
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- CN207680368U CN207680368U CN201721784667.0U CN201721784667U CN207680368U CN 207680368 U CN207680368 U CN 207680368U CN 201721784667 U CN201721784667 U CN 201721784667U CN 207680368 U CN207680368 U CN 207680368U
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- 239000003546 flue gas Substances 0.000 title claims abstract description 89
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 84
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 61
- 239000007789 gas Substances 0.000 claims abstract description 30
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 24
- 239000007921 spray Substances 0.000 claims abstract description 12
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 14
- 230000003197 catalytic effect Effects 0.000 claims description 7
- 239000000969 carrier Substances 0.000 claims description 6
- 239000000779 smoke Substances 0.000 claims description 6
- 230000001413 cellular effect Effects 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000003054 catalyst Substances 0.000 abstract description 23
- 238000005516 engineering process Methods 0.000 abstract description 8
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 14
- 239000000908 ammonium hydroxide Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 14
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 12
- 230000000694 effects Effects 0.000 description 10
- 230000008569 process Effects 0.000 description 8
- 239000000243 solution Substances 0.000 description 8
- 230000006872 improvement Effects 0.000 description 6
- 238000006722 reduction reaction Methods 0.000 description 6
- 238000000746 purification Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000009471 action Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 238000006555 catalytic reaction Methods 0.000 description 3
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 3
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000002918 waste heat Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- 239000004202 carbamide Substances 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000003915 liquefied petroleum gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003863 metallic catalyst Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Inorganic materials O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The utility model belongs to gas denitrifying technology field, provides a kind of equipment for denitrifying flue gas based on temperature-compensating, including hot-blast stove, wind mixed chamber, SCR reactors and air-introduced machine；The air inlet of wind mixed chamber is connected to admission line and hot-blast stove respectively, the gas outlet of wind mixed chamber is connected to by steam line with SCR reactors, and the spray ammonia mouth being connected to ammonia gas supply system is equipped in steam line, the gas outlet of SCR reactors is connected to by outlet pipe with air-introduced machine.The utility model enables to flue-gas temperature to stablize the optimal use temperature in final catalyst, and the effective denitration for being suitable for various operating mode flue gases purifies, and improves denitration efficiency with denitration quality.
Description
Technical field
The utility model is related to gas denitrifying technology field more particularly to a kind of denitrating flue gas dresses based on temperature-compensating
It sets.
Background technology
The 67% of China's nitrogen oxides (abbreviation NOx) discharge comes from coal burning, the emission source polluted according to SO2, NOx
Survey data shows that the key industry of SO2, NOx pollution control is thermoelectricity, steel, cement etc..With " 12th Five-Year Plan ", " 13
The denitration of the propulsion of five " emission reduction works, thermal power plant has been completed substantially, but with the development of efforts at environmental protection, other industry
Denitration work is more severe, and cement, steel, the denitration of chemical industry and some Industrial Stoves are extremely urgent, the flue gas of these industries
Complicated component, temperature is different, cannot indiscriminately imitate the design of power plant's denitration, needs targetedly to carry out technological innovation.
Currently, ripe denitration technology is broadly divided into two major classes, one kind for without using the selective non-catalytic of catalyst also
Former technology (SNCR), another kind of is the SCR technology (SCR) for using catalyst；Wherein SCR is most ripe at present
Gas denitrifying technology, it is method of denitration after a kind of stove, be using reducing agent (NH3, urea) under metallic catalyst effect,
It is selectively reacted with NOx and generates N2 and H2O, rather than aoxidized by O2, therefore be known as " selectivity ".Popular SCR works in the world
Skill is broadly divided into 2 kinds of ammonia process SCR and urea method SCR, this 2 kinds of methods are all the restoring function to NOx using ammonia, in catalyst
Under the action of be reduced to NOx (mainly NO) to be not much air the N2 and water of influence, reducing agent NH3.
In the prior art, applied to the SCR catalyst in denitrating flue gas can be divided into high temperature catalyst (345 DEG C~590 DEG C),
Middle temperature catalyst (260 DEG C~380 DEG C) and low temperature catalyst (80 DEG C~300 DEG C), the suitable reaction temperature of different catalyst
It is different.If reaction temperature is relatively low, the activity of catalyst can reduce, and denitration efficiency is caused to decline, and if catalyst continues
Operation can make catalyst that permanent damage occur under low temperature；If reaction temperature is excessively high, NH3 is oxidized easily, and NOx generation amount increases
Add, can also cause the phase transformation of catalyst material, the activity of catalyst is made to degenerate.Domestic and international SCR system mostly uses greatly high temperature, reacts
Temperature range is 315 DEG C~400 DEG C, but since the flue-gas temperature from flue gas source emission is different, it is difficult to so that flue-gas temperature is stablized
In the optimal use temperature of final catalyst, therefore existing equipment for denitrifying flue gas can not be suitable for having for various operating mode flue gases
Denitration purification is imitated, denitration efficiency is still to be improved.
Therefore, a kind of equipment for denitrifying flue gas based on temperature-compensating is developed, not only there is urgent researching value, it may have
Good economic benefit and commercial application potentiality, this is exactly where the power that the utility model is accomplished and basis.
Utility model content
In order to overcome the defect of the prior art as indicated above, the present inventor to have made intensive studies this, paying
After a large amount of creative works, so as to complete the utility model.
Specifically, technical problem to be solved in the utility model is：It is de- to provide a kind of flue gas based on temperature-compensating
Nitre device is suitable for the effective de- of various operating mode flue gases so that flue-gas temperature stablizes the optimal use temperature in final catalyst
Nitre purifies, and improves denitration efficiency.
In order to solve the above technical problems, the technical solution of the utility model is：
A kind of equipment for denitrifying flue gas based on temperature-compensating, including hot-blast stove, wind mixed chamber, SCR reactors and air-introduced machine；Institute
The air inlet for stating wind mixed chamber is connected to admission line and the hot-blast stove respectively, and the gas outlet of the wind mixed chamber passes through steam line
It is connected to the SCR reactors, and is equipped with the spray ammonia mouth being connected to ammonia gas supply system in the steam line, the SCR is anti-
The gas outlet of device is answered to be connected to the air-introduced machine by outlet pipe.
As an improvement technical solution, further include the heat exchanger for realizing the admission line smoke pre-heating, institute
Heat exchanger is stated respectively to be connected with the admission line and the outlet pipe.
As an improvement technical solution, temperature sensor, the temperature are equipped at the gas outlet position of the wind mixed chamber
Degree sensor is electrically connected with the hot-blast stove.
As an improvement technical solution, the spray ammonia mouth be gridiron.
As an improvement technical solution, TiO2 catalytic carriers are equipped in the SCR reactors, the TiO2 catalysis carries
Body be it is cellular, board-like or corrugated in one kind.
As an improvement technical solution, the admission line is communicated with purifying and dedusting device, and passes through the purification
Dust-extraction unit is connected to flue gas source.
As an improvement technical solution, the gas outlet of the air-introduced machine is communicated with chimney.
After using above-mentioned technical proposal, the utility model has the beneficial effects that：
1, the wind mixed chamber being equipped with is with hot-blast stove, the lower pending flue gas of temperature being discharged from target process, by air inlet
Pipeline is sent into wind mixed chamber, is mixed with the high-temperature flue gas from hot-blast stove in wind mixed chamber, so that it is guaranteed that drawing from wind mixed chamber gas outlet
The flue-gas temperature gone out stablizes the optimal use temperature in final catalyst, and in steam line and from ammonia gas supply system
Ammonia mixes so that the NOx in flue gas enters SCR reactors, the work of final catalyst in SCR reactors after being mixed with ammonia
Under, reduction reaction occurs, removes the nitrogen oxides contained in flue gas, generates nitrogen and water, is discharged from after the purification of SCR reactors
Air-flow pass through the power that air-introduced machine provides later into heat exchanger, by smoke stack emission, to realize the purification to flue gas
Processing reduces pollution of the flue gas to environment, compares traditional equipment for denitrifying flue gas, enable to the difference introduced from admission line
The flue gas of temperature stablizes the optimal use temperature in final catalyst after mixed processing, to obtain the denitration effect of efficient stable
Fruit improves to the denitration efficiency of different temperatures flue gas with denitration quality, and the effective denitration for being suitable for various operating mode flue gases purifies.
2, the heat exchanger being equipped with can recycle and two to the waste heat that carries in flue gas is discharged from SCR reactors
Secondary utilization carries out heat exchange with the low-temperature flue gas in admission line, realizes the preheating to pending flue gas, and then realize to heat
Make full use of, saved the energy.
3, the temperature of supplying gas of wind mixed chamber gas outlet is measured in real time by temperature sensor, and it is real-time to detect signal
Hot-blast stove is fed back to, real-time monitoring is carried out to the mixed flue gas in wind mixed chamber by hot-blast stove again, it is ensured that lead in SCR reactors
Flue-gas temperature all-the-time stable in rated range value, pass through temperature sensor and constitute closed-loop control, control method is ripe, is real
Reliable guarantee now is provided to the denitration process of flue gas efficient stable.
4, the grid-like spray ammonia mouth being equipped with, it is ensured that the ammonia sprayed by ammonia-spraying grid can be sufficiently effective mixed with flue gas
It closes, provides effective guarantee for the catalysis reduction of follow-up flue gas, it is ensured that the clean-up effect of flue gas.
5, the purifying and dedusting device that admission line is communicated with, the flue gas that target process can be discharged are dusted filtering,
The solid particulate matters such as the dust impurity contained in flue gas are avoided to impact the denitrification apparatus, so that the denitrating system energy
Enough effective operations steady in a long-term, service life are long.
6, the external discharge of gas, good to the emission effect of flue gas after being handled by chimney realization, reduces to empty nearby
The influence in compression ring border.
Description of the drawings
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific implementation mode or attached drawing needed to be used in the description of the prior art are briefly described.In all the appended drawings, similar
Element or part are generally identified by similar reference numeral.In attached drawing, each element or part might not be according to actual ratios
It draws.
Fig. 1 is the structural schematic diagram of the utility model；
Reference numeral：1- hot-blast stoves；2- wind mixed chamber；3-SCR reactors；4- air-introduced machines；5- heat exchangers；6- chimneys；7- into
Feed channel；8- steam lines；9- outlet pipes；10- sprays ammonia mouth.
Specific implementation mode
The utility model is further illustrated with reference to specific embodiment.But the purposes of these exemplary embodiments
Only it is used for enumerating the utility model with purpose, any type of any limit not is constituted to the real protection scope of the utility model
It is fixed, it is more non-that the scope of protection of the utility model is confined to this.
As shown in Figure 1, present embodiments provide a kind of equipment for denitrifying flue gas based on temperature-compensating, including it is hot-blast stove 1, mixed
Air compartment 2, SCR reactors 3 and air-introduced machine 4；The air inlet of wind mixed chamber 2 is connected to admission line 7 and hot-blast stove 1 respectively, wind mixed chamber 2
Gas outlet be connected to SCR reactors 3 by steam line 8, and the spray that is connected to ammonia gas supply system is equipped in steam line 8
Ammonia mouth 10, SCR reactors 3 are interior to be equipped with TiO2 catalytic carriers, and TiO2 catalytic carriers are with V2O5 or V2O5-WO3 or V2O5-MoO3
Active constituent, be made it is cellular, board-like or corrugated in one kind, in the present embodiment, TiO2 catalytic carriers are tied using cellular
The gas outlet of structure, SCR reactors 3 is connected to by outlet pipe 9 with air-introduced machine 4, and the gas outlet of air-introduced machine 4 is communicated with chimney 6, is led to
The external discharge that chimney 6 realizes flue gas after denitration is crossed, in such a way that chimney 6 realizes flue gas high altitude discharge, emission effect is good, and
Reduce the influence to neighbouring air environment.
To realize to the accuracy controlling of flue gas mixing temperature in mixing chamber, temperature is equipped at the gas outlet position of wind mixed chamber 2
Sensor, temperature sensor are electrically connected with hot-blast stove 1, are carried out to the temperature of supplying gas of 2 gas outlet of wind mixed chamber by temperature sensor
Detection in real time, and signal Real-time Feedback will be detected to hot-blast stove 1, the mixed flue gas in wind mixed chamber 2 is carried out again by hot-blast stove 1
Real-time monitoring, it is ensured that lead to the flue-gas temperature all-the-time stable in SCR reactors 3 in rated range value, pass through temperature sensor
Closed-loop control is constituted, control method is ripe, and reliable guarantee is provided to the denitration process of flue gas efficient stable to realize；This implementation
In example, hot-blast stove 1 is the air supply system that high temperature gas flow is provided to wind mixed chamber 2, and temperature sensor can be with the pipe electromagnetic of hot-blast stove 1
Valve is electrically connected, and various media may be used as heat source, such as natural gas, liquefied petroleum gas, coal, industry production in hot-blast stove 1
Raw high heat exhaust gas (including blast furnace gas, coal gas of converter, coke-stove gas etc.), alcohol, biogas etc..
In the present embodiment, the optimal use temperature of foundation catalyst, the mixed flue gas sent out from the gas outlet of wind mixed chamber 2
Temperature controls within 320~380 DEG C of value ranges, i.e., the detection rated value of temperature sensor is 320~380 DEG C, to ensure pair
The denitration effect of the stability and high efficiency of flue gas.
For ensure by spray ammonia that ammonia mouth 10 sprays can with flue gas is sufficiently effective mixes, in the present embodiment, spray ammonia
Mouth 10 is gridiron, and the ammonia of ammonia-spraying grid injection can be realized to be mixed with the sufficiently effective of flue gas, is follow-up flue gas
Catalysis reduction provide effective guarantee, it is ensured that the clean-up effect of flue gas.
The mixed airflow for the flue gas and ammonia that temperature is stablized is sent anti-to generation reduction in SCR reactors 3 through steam line 8
Answer, realize and the denitration of flue gas is purified, remove the nitrogen oxides contained in flue gas, wherein react in SCR reactors 3 as
Under：
In the present embodiment, be additionally provided with to realize the heat exchanger 5 of 7 smoke pre-heating of admission line, heat exchanger 5 respectively with air inlet
Pipeline 7 is connected with outlet pipe 9；The heat exchanger 5 being equipped with, can be to being discharged the waste heat carried in flue gas from SCR reactors 3
Recycle and the low-temperature flue gas in secondary use, with admission line 7 carry out heat exchange, realizes the preheating to pending flue gas,
And then realize and heat is made full use of, save the energy.
Certainly, admission line 7 is also communicated with purifying and dedusting device, and is connected to flue gas source by purifying and dedusting device, energy
It is enough that filtering is dusted to the flue gas that target process is discharged, avoid the solid particulate matters such as the dust impurity contained in flue gas de- to this
Nitre device impacts, so that the denitrating system can effectively be run steadily in the long term, service life is long.
Wherein, structure identical with existing denitrification apparatus can be used in the purifying and dedusting device mentioned in the present embodiment,
Since it is conventional technical means in the prior art, known together by those skilled in the art, and therefore not to repeat here.
In the present embodiment, ammonia gas supply system directly evaporates ammonium hydroxide using high-temperature hot-air, will by ammonium hydroxide metering conveying pump
Ammonium hydroxide in tank used for storing ammonia is delivered to ammonium hydroxide evaporator, while under the action of the compressed air of compressed air line conveying, will
Ammonium hydroxide is injected directly into ammonium hydroxide evaporator after being atomized by twin spray gun, the ammonium hydroxide after atomization with from ammonium hydroxide evaporator bottom end
The heat smoke of introducing mixes, and under the action of high warm flue gas, and then realizes the vaporization to ammonium hydroxide, the ammonia after vaporization is through ammonia-
Air pipe line is delivered to ammonia-spraying grid, and flue before SCR reactors 3, i.e. steam line 8 are uniformly sprayed by ammonia-spraying grid, realizes
Ammonia is mixed with the uniform of pending flue gas, for being subsequently sent into 3 denitration purified treatment of SCR reactors, and ammonium hydroxide evaporator bottom
Neat stress of the heat smoke after 3 denitration of SCR reactors introduced is held, by high-temperature hot-air wind turbine by 3 gas outlet of SCR reactors
The high temperature neat stress being discharged at position is directly pumped to ammonium hydroxide evaporator and is used；The ammonium hydroxide vapo(u)rization system based on above-mentioned technique is real
Existing ammonia supply, is compared traditional process evaporated to ammonium hydroxide using steam pipe coil, not only substantially increases the vapour of ammonium hydroxide
Change efficiency, finally improve the denitration efficiency to flue gas, and realize recycling and the secondary use of waste heat, has saved the energy, dropped
Low energy consumption, system flow more optimizes, is simple, while reducing floor space, effectively reduces entire flue gas denitrification system
Operating cost.
It is somebody's turn to do the equipment for denitrifying flue gas based on temperature-compensating based on described above, in use, the temperature being discharged from target process
Lower pending flue gas is spent, the preheating of heat exchanger 5 is first passed through, flue-gas temperature is increased, it is mixed then to pass through the feeding of admission line 7
Air compartment 2 mixes in wind mixed chamber 2 with the high-temperature flue gas from hot-blast stove 1, by the control of itself of hot-blast stove 1, so that it is guaranteed that from
The flue-gas temperature that 2 gas outlet of wind mixed chamber is drawn stablizes the optimal use temperature in final catalyst, and in steam line 8 and comes
It is mixed from the ammonia of ammonia gas supply system so that the NOx in flue gas enters SCR reactors 3 after being mixed with ammonia, is reacted in SCR
In device 3 under the action of final catalyst, reduction reaction occurs, removes the nitrogen oxides contained in flue gas, generates nitrogen and water, from
The air-flow that SCR reactors 3 are discharged after purifying, into heat exchanger 5, the power provided later by air-introduced machine 4, by 6 row of chimney
It puts, to realize the purified treatment to flue gas, reduces pollution of the flue gas to environment.
Denitrification apparatus of this kind based on temperature-compensating, compares traditional equipment for denitrifying flue gas, enables to from admission line 7
The flue gas of the different temperatures of introducing stablizes the optimal use temperature in final catalyst after mixed processing, efficiently steady to obtain
Fixed denitration effect is improved to the denitration efficiency of different temperatures flue gas with denitration quality, suitable for having for various operating mode flue gases
Imitate denitration purification.
It should be appreciated that the purposes of these embodiments is merely to illustrate the utility model and is not intended to limitation the utility model
Protection domain.In addition, it should also be understood that, after having read the technology contents of the utility model, those skilled in the art can be right
The utility model makees various change, modification and/or variation, all these equivalent forms equally fall within right appended by the application and want
Seek book within the limits of the protection.
Claims (7)
1. a kind of equipment for denitrifying flue gas based on temperature-compensating, it is characterised in that：Including hot-blast stove, wind mixed chamber, SCR reactors and
Air-introduced machine；The air inlet of the wind mixed chamber is connected to admission line and the hot-blast stove respectively, and the gas outlet of the wind mixed chamber is logical
It crosses steam line to be connected to the SCR reactors, and is equipped with the spray ammonia mouth being connected to ammonia gas supply system in the steam line,
The gas outlet of the SCR reactors is connected to by outlet pipe with the air-introduced machine.
2. a kind of equipment for denitrifying flue gas based on temperature-compensating as described in claim 1, it is characterised in that：Further include to reality
The heat exchanger of the existing admission line smoke pre-heating, the heat exchanger respectively with the admission line and the outlet pipe phase
Even.
3. a kind of equipment for denitrifying flue gas based on temperature-compensating as claimed in claim 2, it is characterised in that：The wind mixed chamber
Temperature sensor is equipped at the position of gas outlet, the temperature sensor is electrically connected with the hot-blast stove.
4. a kind of equipment for denitrifying flue gas based on temperature-compensating as claimed in claim 2, it is characterised in that：The spray ammonia mouth is
Gridiron.
5. a kind of equipment for denitrifying flue gas based on temperature-compensating as described in claim 1, it is characterised in that：The SCR reactions
Be equipped with TiO2 catalytic carriers in device, the TiO2 catalytic carriers be it is cellular, board-like or corrugated in one kind.
6. a kind of equipment for denitrifying flue gas based on temperature-compensating as described in claim 1, it is characterised in that：The admission line
It is communicated with purifying and dedusting device, and is connected to flue gas source by the purifying and dedusting device.
7. a kind of equipment for denitrifying flue gas based on temperature-compensating as claimed in any one of claims 1 to 6, it is characterised in that：It is described
The gas outlet of air-introduced machine is communicated with chimney.
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| CN201721784667.0U CN207680368U (en) | 2017-12-19 | 2017-12-19 | A kind of equipment for denitrifying flue gas based on temperature-compensating |
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| CN201721784667.0U CN207680368U (en) | 2017-12-19 | 2017-12-19 | A kind of equipment for denitrifying flue gas based on temperature-compensating |
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| CN108854531A (en) * | 2018-08-06 | 2018-11-23 | 东方电气集团东方锅炉股份有限公司 | A kind of SCR equipment for denitrifying flue gas with a variety of regulatory functions |
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| CN110368811A (en) * | 2019-08-16 | 2019-10-25 | 北京首钢国际工程技术有限公司 | A kind of SCR denitration Smoke-heating device for wearing secondary mixed wind |
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| CN109603526A (en) * | 2018-12-29 | 2019-04-12 | 中冶南方都市环保工程技术股份有限公司 | A biomass power plant flue gas treatment system |
| CN110368811A (en) * | 2019-08-16 | 2019-10-25 | 北京首钢国际工程技术有限公司 | A kind of SCR denitration Smoke-heating device for wearing secondary mixed wind |
| CN111054212A (en) * | 2020-03-18 | 2020-04-24 | 山东中航天业科技有限公司 | Heat-storage molecular sieve-regulated catalytic reduction denitration device |
| CN111473352A (en) * | 2020-05-21 | 2020-07-31 | 武汉东衍环境工程技术有限公司 | Purification and emission equipment for urban garbage incineration flue gas and purification treatment method thereof |
| CN111550797A (en) * | 2020-05-21 | 2020-08-18 | 武汉东衍环境工程技术有限公司 | Deep purification equipment for hazardous waste incineration flue gas and purification treatment method thereof |
| CN114011238A (en) * | 2021-11-26 | 2022-02-08 | 苏州克兰茨环境科技有限公司 | Catalytic denitration waste gas treatment system and working method thereof |
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