CN107441898A - A kind of impulse electric corona plasma flue gas desulfurization and denitrification integrated apparatus - Google Patents
A kind of impulse electric corona plasma flue gas desulfurization and denitrification integrated apparatus Download PDFInfo
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- CN107441898A CN107441898A CN201710874380.5A CN201710874380A CN107441898A CN 107441898 A CN107441898 A CN 107441898A CN 201710874380 A CN201710874380 A CN 201710874380A CN 107441898 A CN107441898 A CN 107441898A
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/32—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by electrical effects other than those provided for in group B01D61/00
- B01D53/323—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by electrical effects other than those provided for in group B01D61/00 by electrostatic effects or by high-voltage electric fields
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/56—Nitrogen oxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01D—SEPARATION
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- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/75—Multi-step processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/76—Gas phase processes, e.g. by using aerosols
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D2251/206—Ammonium compounds
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- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/104—Alumina
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D2258/00—Sources of waste gases
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/818—Employing electrical discharges or the generation of a plasma
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Abstract
The invention discloses a kind of impulse electric corona plasma flue gas desulfurization and denitrification integrated apparatus, including reaction chamber, the reaction chamber includes the inlet air stack and outlet flue being oppositely arranged, also include the denitration unit, the desulfurization unit that are arranged in order by the inlet air stack to the outlet flue direction in the reaction chamber, be provided with around the desulfurization unit some in the reaction chamber and towards the ammonia nozzle of desulfurization unit.Impulse electric corona plasma flue gas desulfurization and denitrification integrated apparatus provided by the invention, the SO in flue gas is removed respectively2And NOx, more preferable pollutant removing efficiency can be obtained.
Description
Technical field
The present invention relates to technical field of atmospheric pollution control, more particularly to a kind of impulse electric corona plasma flue gas desulfurization takes off
Nitre integrated apparatus.
Background technology
In recent years, as rapid development of economy, environmental pollution also increasingly aggravate therewith, have a strong impact on that the body of people is good for
Health, environmental issue are extremely urgent.National Development and Reform Committee of China, Chinese Ministry of Environmental Protection, National Energy Board combined what is printed and distributed in 2014《Coal electricity section
Can emission reduction upgrading and transformation action plan (2014-the year two thousand twenty)》, the flue gas pollutant in the thermal power plant of some areas is arranged
Put concentration limit and enter one and be reduced to SO2:-35mg/m3, NOx:-50mg/m3, dust:-10mg/m3.This is meant that with coal
By flue gas that the factory of fuel discharges, it is necessary to reach the clean level for the flue gas arranged using natural gas by the factory of fuel.
At present for NO in flue gasxThe conventional art means of control are：Selective catalytic reduction (SCR), selectivity are non-
Catalytic reduction method (SNCR) technology.SCR technology expensive catalyst be present and easily poisoning, operating cost are too high；Form ammonium sulfate
The equipment such as air preheater are blocked Deng sulfate, existing influences the problem of being smoothed out of normal productive process.SNCR technology meetings
Boiler efficiency is reduced, brings bigger fuel consumption.For SO in flue gas2The conventional art means of control are absorption processes, wherein
Including dry method, semidry method and wet method.Absorption process needs the reacting balance time grown very much, could realize SO under low consistency conditions2Gas
Effective absorption of body.
Impulse electric corona plasma flue gas desulfurization and denitrification integrated technique, the method that chemical reaction is excited using electric energy,
Under conditions of pollutant concentration is low, there is very high reaction efficiency, become the desirable technique of low concentration pollutant improvement.
In fact, SO2And NOxPrinciple under plasma condition is otherwise varied, however, prior art is anti-at one section by two kinds of pollutants
Answer in device while remove, the efficiency of reaction is not ideal enough, and the removal efficiency of pollutant is restricted.
The content of the invention
The embodiment of the present invention provides a kind of impulse electric corona plasma flue gas desulfurization and denitrification integrated apparatus, removes smoke abatement respectively
SO in gas2And NOx, overcome the deficiencies in the prior art, improve the removal efficiency of pollutant.
To achieve the above object, the embodiment of the present invention uses following technical proposals：
A kind of impulse electric corona plasma flue gas desulfurization and denitrification integrated apparatus, including reaction chamber, the reaction chamber
Including the inlet air stack and outlet flue being oppositely arranged, in addition in the reaction chamber by the inlet air stack to described
Denitration unit, the desulfurization unit that outlet flue direction is arranged in order, it is provided with around the desulfurization unit and some is located at the reaction
In chamber and towards the ammonia nozzle of desulfurization unit.
Further, some ammonia nozzles are between the denitration unit and desulfurization unit.
Further, described device also includes the collector unit for being used to collect solid matter in reaction chamber, institute
Denitration unit, desulfurization unit, collector unit is stated to be arranged in order by the inlet air stack to the outlet flue direction.
Further, described device also includes magnetic switch, and the high-pressure pulse electric of the collector unit is opened by the magnetic
Pass is in parallel with the high-pressure pulse electric of the desulfurization unit and forms resonance electric power system.
Further, described device also includes the absorbing unit for adsorptive gaseous material in reaction chamber, institute
Denitration unit, desulfurization unit, absorbing unit is stated to be arranged in order by the inlet air stack to the outlet flue direction.
Further, described device also includes the absorbing unit for adsorptive gaseous material in reaction chamber, institute
Denitration unit, desulfurization unit, collector unit, absorbing unit is stated to be arranged successively by the inlet air stack to the outlet flue direction
Row.
Further, described device also includes rinsing water system, and the flushing water system is included in reaction chamber
Some the first (operating) water nozzles towards the absorbing unit, first (operating) water nozzle be located at the collector unit and absorbing unit it
Between.
Further, some second (operating) water nozzles are provided with the inlet air stack.
Further, some oxygen supply nozzles are provided with the inlet air stack.
Further, the denitration unit and/or desulfurization unit include multiple by the inlet air stack to the outlet cigarette
The high-voltage pulse electric place of road direction arrangement.
Above-mentioned at least one technical scheme that the embodiment of the present invention uses can reach following beneficial effect：
Compared with prior art, impulse electric corona plasma flue gas desulfurization and denitrification integrated apparatus provided by the invention, take off
Nitre unit, desulfurization unit are provided separately, and the two is arranged in order by the inlet air stack to the outlet flue direction, different
Under reaction condition, the SO in flue gas is removed respectively2And NOx, more preferable pollutant removing efficiency can be obtained.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, forms the part of the present invention, this hair
Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the signal of impulse electric corona plasma flue gas desulfurization and denitrification integrated apparatus provided in an embodiment of the present invention
Figure.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the specific embodiment of the invention and
Technical solution of the present invention is clearly and completely described corresponding accompanying drawing.Obviously, described embodiment is only the present invention one
Section Example, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not doing
Go out under the premise of creative work the every other embodiment obtained, belong to the scope of protection of the invention.
Below in conjunction with accompanying drawing, technical scheme provided in an embodiment of the present invention is described in detail.
First embodiment
As shown in figure 1, the present embodiment provides a kind of impulse electric corona plasma flue gas desulfurization and denitrification integrated apparatus, including
Reaction chamber 1, reaction chamber 1 include the inlet air stack 11 and outlet flue 12 being oppositely arranged.Impulse electric corona plasma cigarette
Desulfurization denitrification integrated device also include in the reaction chamber 1 by the inlet air stack 11 to the side of outlet flue 12
To denitration unit 2, desulfurization unit 3, collector unit 4, the absorbing unit 5 being arranged in order.The denitration unit 2 and desulfurization unit 3
Between be provided with some ammonia nozzles 6, some ammonia nozzles 6 are towards desulfurization unit 3.
In addition, impulse electric corona plasma flue gas desulfurization and denitrification integrated apparatus also includes rinsing water system, high-voltage pulse
Power supply group 8 and magnetic switch 9.The water system of rinsing includes some courts between the collector unit 4 and absorbing unit 5
To the first (operating) water nozzle 71 for being used to spray water of the absorbing unit 5.High-voltage pulse power source group 8 includes the first high-voltage pulse power source 81
And second high-voltage pulse power source 82.First high-voltage pulse power source 81 is electrically connected to denitration unit 2, is provided for denitration unit 2
High-voltage pulse.Second high-voltage pulse power source 82 is electrically connected to desulfurization unit 3 and collector unit 4, is desulfurization unit 3 and receipts
Collect unit 4 and high-voltage pulse is provided.Magnetic switch 9 is used to the high-voltage pulse signal of the second high-voltage pulse power source 82 passing to collection list
Member 4.
Below for each composition in impulse electric corona plasma flue gas desulfurization and denitrification integrated apparatus provided by the invention
Part is specifically described.
Reaction chamber 1, for contain SO2And NOxFlue gas Deng pollutant provides processing place, and it includes being oppositely arranged
Inlet air stack 11 and outlet flue 12, additionally include for draining discharge outlet 13.
Contain SO2And NOxFlue gas Deng pollutant is entered inside reaction chamber 1 by inlet air stack 11.Set in inlet air stack 11
There are some second (operating) water nozzles 111 and some oxygen supply nozzles 112.
Second (operating) water nozzle 111 is used to spray water, and water can provide OH free radicals, and it enters denitration unit 2 after being mixed with flue gas,
Under the high-voltage pulse of denitration unit 2, the NO in flue gas can be aoxidized to form NO2, while can be by NO2Oxidation forms HNO3, and then
Improve denitration efficiency.
Oxygen supply nozzle 112 is used to provide oxygen, the present embodiment oxygen supply nozzle 112 spray for air, containing aerobic in air
Gas, and then to allow oxygen supply nozzle 112 to provide oxygen, the gas that nozzle 112 sprays is supplied oxygen in certain other embodiment
Can be other oxygen-containing more mixed gas or pure oxygen gas, if can oxygen, the present invention is limited not to this.Oxygen supply
The gas that nozzle 112 sprays enters denitration unit 2 after being mixed with flue gas, under the high-voltage pulse of denitration unit 2, contains in it
Oxygen can aoxidize NO in flue gas and be formed NO2, and then improve denitration efficiency.
Air velocity in flue is very fast, and less turbulence is high, some second (operating) water nozzles 111 and some oxygen supply nozzles 112
It is arranged in inlet air stack 11 so that the water that some second (operating) water nozzles 111 spray and the oxygen with some oxygen supply nozzles 112 ejections
Can be with being sufficiently mixed with flue gas, and then further improve denitration efficiency.
Certain the second (operating) water nozzle of other embodiments of the invention 111 and oxygen supply nozzle 112 discharge order and position also can be with
The present embodiment is different, and the two can also be not arranged in inlet air stack 11, either one of them not in inlet air stack 11 or
The second (operating) water nozzle 111 or oxygen supply nozzle 112, Huo Zheye can also be selectively provided with other embodiment according to actual conditions
Can the two be all not provided with, be not limited here.
Outlet flue 12 is used to discharge the flue gas after purified treatment.Outlet flue 12 is relative with inlet air stack 11 to be set
Put so that flowed along inlet air stack 11 to the direction of outlet flue 12 in flue gas stream direction.Discharge outlet 13 is arranged on reaction cavity 1
Bottom, for by after flushing water system flush water discharge.
Denitration unit 2 is arranged near inlet air stack 11.The present embodiment denitration unit 2 includes a high-pressure pulse electric
Area, denitration unit 2 can also include multiple by the inlet air stack 11 to the side of outlet flue 12 in certain other embodiment
To the high-voltage pulse electric place of arrangement, the number of high-voltage pulse electric place can specifically be set according to the actual requirements.One
Or multiple high-voltage pulse electric places are discharged under the driving of the first high-voltage pulse power source 81, while energetic plasma is produced, led to
Cross electric energy and excite chemical reaction, and then realize denitration.Each high-voltage pulse electric place includes multiple rows of arranged in parallel along flue gas direction
The first ground connection pole plate 21 and multiple rows of first discharge plate 22 arranged in parallel along flue gas direction, the first ground connection pole plate 21 and the
One discharge plate 22 is arranged at intervals.Each first ground connection pole plate 21 is electrically connected to earth terminal, and each first discharge plate 22 is equal
The first high-voltage pulse power source 81 is electrically connected to, and then first ground connection pole plate 21 of each first discharge plate 22 with both ends is formed
High-pressure pulse electric, high-pressure pulse electric, which discharges, produces energetic plasma, the NO in flue gasxActivated in energetic plasma
Under, chemically react, ultimately generate HNO3, so as to denitration.Include the HNO of generation in the flue gas of denitration unit 33, it is untreated
SO2Gas and other solid-state dust materials etc., wherein the solid matter quilt under the high-voltage pulse electric field action of denitration unit 2
It is collected into electric charge, and by electrically charged solid matter part in the first ground connection pole plate 21.
Desulfurization unit 3 is between denitration unit 2 and collector unit 4.The present embodiment desulfurization unit 3 includes a high-tension pulse
Electric field region is rushed, the high-pressure pulse electric plot structure of desulfurization unit 3 is similar with the high-pressure pulse electric plot structure of denitration unit 2, bag
Include multiple rows of second ground connection pole plate 31 arranged in parallel along flue gas direction and multiple rows of second electric discharge arranged in parallel along flue gas direction
Pole plate 32, the second ground connection pole plate 31 are arranged at intervals with the second discharge plate 32.Each second ground connection pole plate 31, which is electrically connected to, to be connect
Ground terminal, and each second discharge plate 32 is electrically connected to the second high-voltage pulse power source 82, and then each second discharge plate 32 is equal
High-pressure pulse electric is formed with the second ground connection pole plate 31 at both ends, high-pressure pulse electric electric discharge produces energetic plasma.This hair
Bright other embodiment desulfurization unit 3 can also include multiple high-voltage pulse electric places.It is provided between denitration unit 2 and desulfurization unit 3
Some ammonia nozzles 6 towards desulfurization unit 3.Ammonia nozzle 6 is used to spray ammonia so that after flue gas leaves denitration unit 2, cigarette
SO in gas2Generation (NH is reacted with a part of ammonia4)2SO3, (NH4)2SO3In high energy plasma caused by high pressure pulse discharge
Body effect is lower to be oxidized generation (NH4)2SO4, and then realize desulfurization；And the HNO in the flue gas come out from denitration unit 23With it is another
Part ammonia reaction generation NH4NO3.Therefore, solid granular (NH is included in the flue gas of desulfurization unit 34)2SO4With NH4NO3
And other solid-state dust materials etc., solid matter under the high-voltage pulse electric field action of desulfurization unit 3 by with electric charge, and by
Electrically charged solid matter part is collected into the second ground connection pole plate 31.
Collector unit 4 is between desulfurization unit 3 and outlet flue 12, for collecting solid matter.Collector unit 4 has
The high-voltage pulse electric place similar with desulfurization unit 3 and denitration unit 2, high-voltage pulse electric place include multiple rows of along flue gas direction
3rd ground connection pole plate 41 arranged in parallel and multiple rows of 3rd discharge plate 42 arranged in parallel along flue gas direction, the 3rd earthing pole
Plate 41 is arranged at intervals with the 3rd discharge plate 42.Each 3rd ground connection pole plate 41 is electrically connected to earth terminal, and each 3rd discharges
Pole plate 42 is electrically connected to the second high-voltage pulse power source 82, and then threeth earthing pole of each 3rd discharge plate 42 with both ends
Plate 41 forms high-pressure pulse electric, and high-pressure pulse electric electric discharge produces energetic plasma.Other embodiments of the invention are collected single
Member 4 can also include multiple high-voltage pulse electric places.
The high-tension pulse that the high-pressure pulse electric of collector unit 4 described in the present embodiment passes through magnetic switch 9 and the desulfurization unit 3
Rush electric field parallel connection and form resonance electric power system.Second high-voltage pulse power source 82 carries for desulfurization unit 3 and collector unit 4 simultaneously
For high voltage pulse.The present embodiment collector unit 4 is not separately provided high voltage power supply, but general by magnetic switch 9 and desulfurization unit 3
One high voltage power supply, and the high-pressure pulse electric composition resonance of the high-pressure pulse electric of collector unit 4 and the desulfurization unit 3 supplies
Electric system so that whole system more saves.Certain other embodiments of the invention can also use and separately set a height to collector unit 4
Voltage source, or the high-pressure pulse electric of collector unit 4 and the height of the desulfurization unit 3 are realized by the form of its non-magnetic switch
The resonance power supply of impulse electric field is pressed, the present invention is limited not to this.
Flue gas after denitration unit 2 and desulfurization unit 3, although existing part solid matter by the first grounding electrode 21 with
And second collected by grounding electrode 31, but some solid matters residual is still had among the flue gas after desulfurization unit 3
In flue gas.Energetic plasma caused by the high-pressure pulse electric electric discharge of collector unit 4 so that flow into consolidating for collector unit 4
Body graininess (NH4)2SO4With NH4NO3And other solid-state dust materials are by with electric charge, and by electrically charged solid matter portion
Divide and be collected into the 3rd ground connection pole plate 41, and then further purifying smoke, improve pollutant removing efficiency.The present embodiment is this
The preferred embodiment of invention, certain other embodiments of the invention can not include collector unit 4 yet.
Absorbing unit 5 is between collector unit 4 and outlet flue 12, for adsorptive gaseous material.Filled out in absorbing unit 5
Alumina particle filled with γ phases.Alumina particle has many capillary channels, surface area is big, has as absorption filler
Good suction-operated, other absorption fillers can be also filled in certain other embodiment absorbing unit 5.Flue gas is single by collecting
After member 4, some NO not being fully processed also are had2Deng gaseous contamination material, list can be adsorbed when it flows through absorbing unit 5
Alumina particle absorption in member 5, and then further purifying smoke so that the flue gas cleaning degree flowed out by outlet flue 12 is more
It is high.The present embodiment is the preferred embodiments of the present invention, and certain other embodiments of the invention can not include absorbing unit 5 yet.
Ammonia nozzle 6 is located in the reaction chamber 1 and around desulfurization unit 3, simultaneously towards desulfurization unit 3.Ammonia
Nozzle 6 is used to spray ammonia, by ammonia by the SO in the flue gas for leaving denitration unit 22And HNO3Handled, can
(NH is ultimately generated under the high-pressure pulse electric activation after entering desulfurization unit 3 in denitration unit 34)2SO4With NH4NO3Gu
Body particle, and then be removed, detailed process to what denitration unit 3 was carried out as above illustrated part.The present embodiment is one excellent
Select embodiment, specifically, ammonia nozzle 6 be arranged between denitration unit 2 and desulfurization unit 3, but when the present invention not as
Limitation, the other positions that ammonia nozzle 6 may also be arranged on around desulfurization unit 3, as long as it is towards desulfurization unit 3, can to from
Absolve the SO in the flue gas of nitre unit 22And HNO3Handled, and under the high-pressure pulse electric activation of denitration unit 3
Ultimately generate (NH4)2SO4With NH4NO3Solid particle, and then be removed.Ammonia is favorably improved SiO2Removal efficiency, still
But NO can be reducedxRemoval efficiency.Denitration of embodiment of the present invention unit 2, desulfurization unit 3 are provided separately, and an ammonia is concentrated to de-
Sprayed into sulphur unit 3, therefore can both improve SiO2Removal efficiency, but will not be to NOxRemoval efficiency have a significant impact,
That is the embodiment of the present invention removes the SO in flue gas respectively under different reaction conditions2And NOx, more preferable pollutant can be obtained
Removal efficiency.
Rinsing water system includes some first for water spray towards the absorbing unit 5 in reaction chamber 1
(operating) water nozzle 71.In addition, rinse water system also include in the reaction chamber 1 and respectively positioned at denitration unit 2, desulfurization unit 3 with
And the 3rd (operating) water nozzle 72, the 4th (operating) water nozzle 73 and the 5th (operating) water nozzle 74 above the high-voltage pulse electric place of collector unit 4.Institute
The first (operating) water nozzle 71 is stated between the collector unit 4 and absorbing unit 5, the cleanable absorption of water that the first (operating) water nozzle 71 sprays
Absorption filler, makes it have good suction-operated in unit.The height of denitration unit 2, desulfurization unit 3 and collector unit 4
Sprayed water in the 3rd (operating) water nozzle 72, the 4th (operating) water nozzle 73 and the 5th (operating) water nozzle 74 above pressure impulse electric field area, can be by denitration list
First ground connection pole plate 21, second of member 2, desulfurization unit 3 and collector unit 4 is grounded pole plate 31 and the 3rd and is grounded in pole plate 41
The solid matter of collection is taken away, and keeps ground connection polar board surface cleaning.It is the first (operating) water nozzle 71, that water system, which is rinsed, by same water source
Three (operating) water nozzles 72, the 4th (operating) water nozzle 73 and the 5th (operating) water nozzle 74 supply water, and the water that each (operating) water nozzle sprays has rinsed each dependent part
/ after, discharged by the discharge outlet 13 of reaction chamber.
High-voltage pulse power source group 8 includes the first high-voltage pulse power source 81 and the second high-voltage pulse power source 82.First high pressure
The pulse power 81 is used to improve high-voltage pulse for denitration unit 2, and the second high-voltage pulse power source 82 is used for for desulfurization unit 3 and received
Collect unit 4 provide high-voltage pulse, before to be elaborated to this, be not repeated herein and repeat.
Magnetic switch 9 is arranged between the second high-voltage pulse power source 82 and collector unit 4, realizes the high-tension pulse of collector unit 4
Rush the high-pressure pulse electric composition resonance electric power system of electric field and the desulfurization unit 3.Magnetic switch 9 is by certain magnetic materials shape
Into pulsactor being present.Due to the presence of magnetic switch 9, the electric current of the second high-voltage pulse power source 82 outflow is conducted to collector unit 4
Before, magnetic field is produced in magnetic switch 9 first, converts electrical energy into magnetic energy, when magnetic field intensity reaches maximum, that is, reaches magnetic switch 9
Pulsactor, now, magnetic switch is opened, and high-tension current is transferred to collector unit 4, and collector unit 4 does not provide high-voltage pulse
Electric field.
In summary, compared with prior art, impulse electric corona plasma flue gas desulfurization provided in an embodiment of the present invention takes off
Nitre integrated apparatus, denitration unit 2, desulfurization unit 3 are provided separately, and the two is by the inlet air stack 11 to the outlet flue 12
Direction is arranged in order, and under different reaction conditions, removes the SO in flue gas respectively2And NOx, more preferable pollutant can be obtained
Removal efficiency.
Embodiments of the invention are the foregoing is only, are not intended to limit the invention.For those skilled in the art
For, the present invention can have various modifications and variations.All any modifications made within spirit and principles of the present invention, it is equal
Replace, improve etc., it should be included within scope of the presently claimed invention.
Claims (10)
1. a kind of impulse electric corona plasma flue gas desulfurization and denitrification integrated apparatus, including reaction chamber, the reaction chamber bag
Include the inlet air stack being oppositely arranged and outlet flue, it is characterised in that also include in the reaction chamber by the air inlet
Denitration unit, the desulfurization unit that flue is arranged in order to the outlet flue direction, some positions are provided with around the desulfurization unit
In in the reaction chamber and towards the ammonia nozzle of desulfurization unit.
2. impulse electric corona plasma flue gas desulfurization and denitrification integrated apparatus according to claim 1, it is characterised in that institute
Some ammonia nozzles are stated between the denitration unit and desulfurization unit.
3. impulse electric corona plasma flue gas desulfurization and denitrification integrated apparatus according to claim 1, it is characterised in that institute
Stating device also includes the collector unit for being used to collect solid matter in the reaction chamber, the denitration unit, desulfurization unit,
Collector unit is arranged in order by the inlet air stack to the outlet flue direction.
4. impulse electric corona plasma flue gas desulfurization and denitrification integrated apparatus according to claim 3, it is characterised in that institute
Stating device also includes magnetic switch, and the high-pressure pulse electric of the collector unit passes through the magnetic switch and the height of the desulfurization unit
Pressure impulse electric field is in parallel and forms resonance electric power system.
5. impulse electric corona plasma flue gas desulfurization and denitrification integrated apparatus according to claim 1, it is characterised in that institute
Stating device also includes the absorbing unit for adsorptive gaseous material in the reaction chamber, the denitration unit, desulfurization unit,
Absorbing unit is arranged in order by the inlet air stack to the outlet flue direction.
6. impulse electric corona plasma flue gas desulfurization and denitrification integrated apparatus according to claim 3, it is characterised in that institute
Stating device also includes the absorbing unit for adsorptive gaseous material in the reaction chamber, the denitration unit, desulfurization unit,
Collector unit, absorbing unit are arranged in order by the inlet air stack to the outlet flue direction.
7. impulse electric corona plasma flue gas desulfurization and denitrification integrated apparatus according to claim 6, it is characterised in that institute
Stating device also includes rinsing water system, and the water system of rinsing is including some towards the absorbing unit in reaction chamber
The first (operating) water nozzle, first (operating) water nozzle is between the collector unit and absorbing unit.
8. impulse electric corona plasma flue gas desulfurization and denitrification integrated apparatus according to claim 1, it is characterised in that institute
State in inlet air stack and be provided with some second (operating) water nozzles.
9. impulse electric corona plasma flue gas desulfurization and denitrification integrated apparatus according to claim 1, it is characterised in that institute
State in inlet air stack and be provided with some oxygen supply nozzles.
10. impulse electric corona plasma flue gas desulfurization and denitrification integrated apparatus according to claim 1, it is characterised in that
The denitration unit and/or desulfurization unit include multiple high-tension pulses arranged by the inlet air stack to the outlet flue direction
Rush electric field region.
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| CN201710874380.5A CN107441898A (en) | 2017-09-25 | 2017-09-25 | A kind of impulse electric corona plasma flue gas desulfurization and denitrification integrated apparatus |
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| CN201710874380.5A CN107441898A (en) | 2017-09-25 | 2017-09-25 | A kind of impulse electric corona plasma flue gas desulfurization and denitrification integrated apparatus |
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