CN113499686A - Light quantum beam flue gas low temperature denitration system - Google Patents

Light quantum beam flue gas low temperature denitration system Download PDF

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CN113499686A
CN113499686A CN202110897325.4A CN202110897325A CN113499686A CN 113499686 A CN113499686 A CN 113499686A CN 202110897325 A CN202110897325 A CN 202110897325A CN 113499686 A CN113499686 A CN 113499686A
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hole
pipeline
cathode
anode
flue gas
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印朝晖
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Beijing Aerospace Fangda Technology Co ltd
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Beijing Aerospace Fangda Technology Co ltd
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • 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
    • B01D53/86—Catalytic processes
    • B01D53/8621—Removing nitrogen compounds
    • B01D53/8625—Nitrogen oxides
    • B01D53/8628—Processes characterised by a specific catalyst
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
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    • B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
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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
    • B01D53/007—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 irradiation
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • 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
    • 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
    • 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
    • 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
    • B01D53/77—Liquid phase processes
    • B01D53/78—Liquid phase processes with gas-liquid contact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/02—Other waste gases
    • B01D2258/0283—Flue gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B01D2259/00—Type of treatment
    • B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
    • B01D2259/81—X-rays
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
    • B01D2259/812—Electrons
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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Abstract

The invention belongs to the field of environmental protection. The light quantum beam flue gas low-temperature denitration system is characterized by comprising an SNCR (selective non-catalytic reduction) denitration device, a first pipeline, a bag-type dust remover, a second pipeline, a fan, a wet desulphurization device, a third pipeline, a light quantum beam generating device and a fourth pipeline; the input end of the SNCR denitration device is connected with the flue gas output end of the boiler, the output end of the SNCR denitration device is connected with the input end of the bag-type dust remover through a first pipeline, the output end of the bag-type dust remover is connected with the input end of the wet desulphurization device through a second pipeline, a fan is arranged on the second pipeline, the output end of the wet desulphurization device is connected with the inlet of the light quantum beam generating device through a third pipeline, and the outlet of the light quantum beam generating device is connected with the inlet of the chimney through a fourth pipeline. The system has the characteristics of good denitration, desulfurization and dust removal effects, and can meet the environmental protection requirement in a low-temperature state.

Description

Light quantum beam flue gas low temperature denitration system
Technical Field
The invention belongs to the field of environmental protection, and particularly relates to a low-temperature flue gas denitration system.
Background
Flue gas generated by coal-fired boilers of power plants, sintering machines of steel plants and other furnaces burning fossil fuels contains a large amount of sulfur dioxide and nitrogen oxides, and if the flue gas is directly discharged into the atmosphere, the air can be polluted, so that environmental disasters such as acid rain and the like are formed.
The existing methods and devices for desulfurization, denitration and dust removal of flue gas are more, such as Chinese patents: CN202010128903.3 (named as integrated equipment for desulfurization, denitrification, whitening and dedusting of flue gas), CN201811651760.3 (a system and a method for low-temperature denitration and synchronous desulfurization treatment of flue gas), and CN201911383676.2 (a device and a method for desulfurization, denitrification and dedusting) and the like. There is a disadvantage in that the treatment effect is to be further improved.
The traditional electric precipitation utilizes the principle of electrostatic field adsorption, makes dusty gas bring electric charge to the laying dust utmost point skew, washes the entrapment dust through shaking reaching or water film, and this traditional technology can only the entrapment is easily by the dust of electric charge, and the dust that is difficult to be charged will escape, and the dust collection efficiency of this technology has not satisfied the environmental control of proposing the mark day by day. Because the frequent vibration reaches the deashing, makes the polar plate warp easily, leads to the discharge distance inhomogeneous, will appear frequent striking sparks and draw the arc, causes the polar plate to puncture, even breaks out a fire, and the insecurity of this technique also can lead to manufacturing enterprise's safety risk. Because the water film washes the dust collecting electrode, the pole plate is easy to scale, which causes a great increase of the operating cost and a reduction of the dust removing efficiency, the working current of the electric field is also easy to increase, and the normal production is also influenced by frequent washing. In summary, the conventional technology has been deeply scaled down by users in terms of dust removal efficiency, safety accidents, environmental protection accidents, energy saving and consumption reduction. Therefore, a new technology for replacing the traditional electric dust removal technology is urgently needed.
Disclosure of Invention
The invention aims to provide a light quantum beam low-temperature flue gas denitration system which has the characteristics of good denitration, desulfuration and dust removal effects.
In order to achieve the purpose, the invention adopts the technical scheme that: the light quantum beam flue gas low-temperature denitration system is characterized by comprising an SNCR denitration device 27, a first pipeline 28, a bag-type dust remover 29, a second pipeline 30, a fan 31, a wet desulphurization device 32, a third pipeline 33, a light quantum beam generating device 34 and a fourth pipeline 35; the input end of the SNCR denitration device 27 is connected with the flue gas output end of the boiler 26, the output end of the SNCR denitration device 26 is connected with the input end of the bag-type dust remover 29 through the first pipeline 28, the output end of the bag-type dust remover 29 is connected with the input end of the wet desulphurization device 32 through the second pipeline 30, the second pipeline 30 is provided with the fan 31, the output end of the wet desulphurization device 32 is connected with the inlet of the light quantum beam generating device 34 through the third pipeline 33, and the outlet of the light quantum beam generating device 34 is connected with the inlet of the chimney through the fourth pipeline 35.
According to the technical scheme, the light quantum beam generating device comprises a power supply 1, an insulator 4, an anode 5, an anode support 6, an outlet cavity 7, a cathode 9, a collecting device 11, an inlet cavity 13 and a shell 20; an outlet cavity 15 is arranged in the outlet cavity 7, an outlet 8 is arranged on the right side face of the outlet cavity 7, a fourth through hole 22 is arranged on the upper end face of the outlet cavity 7, a third through hole 21 is arranged on the lower end face of the outlet cavity 7, the outlet 8, the fourth through hole 22 and the third through hole 21 are all communicated with the outlet cavity 15 of the outlet cavity 7, and the fourth through hole 22 is positioned right above the third through hole 21;
the right side surface of the inlet cavity 13 is provided with an inlet 10, the upper end surface of the inlet cavity 13 is provided with a second through hole 19, the inlet 10 and the second through hole 19 are both communicated with the inlet cavity of the inlet cavity 13, and the lower end of the inlet cavity 13 is an open end; the lower end of the inlet cavity 13 is fixedly connected with the collecting device 11;
the cathode 9 is positioned in the shell 20, the lower end of the cathode 9 is fixedly connected with the upper end of the inlet cavity 13 through a fixing device 14, a first through hole 17 is formed in the fixing device 14, and the first through hole 17 is communicated with a second through hole 19 in the inlet cavity 13; the upper end of the cathode 9 is fixedly connected with the lower end of the outlet cavity 7; the lower end part of the shell 20 is fixedly connected with the fixing device 14, and the upper end part of the shell 20 is fixedly connected with the lower end of the outlet cavity 7;
the upper end part of the anode 5 is connected with the anode bracket 6, and the middle lower part of the anode 5 passes through the fourth through hole 22 and the third through hole 21 and then is positioned near the cathode 9; the anode 5 is connected with the outlet cavity 7 through the insulator 4, and the insulator 4 is inserted into the fourth through hole 22; the upper end of the anode 5 is connected with the positive pole of the power supply 1 by a power line 2, and the cathode 9 is connected with the negative pole of the power supply 1 by a power line.
According to the technical scheme, the number of the cathodes 9 is 1-100, and the number of the anodes is the number corresponding to the number of the cathodes.
According to the technical scheme, the distance between the anode 5 and the cathode 9 is 2-60 cm.
According to the technical scheme, the anode is made of a conductive material; the cathode is made of metal or alloy.
According to the technical scheme, the cathode is plate-shaped, tubular or honeycomb-shaped.
According to the technical scheme, the cathode 9 is tubular, the upper end of the pipe hole 16 of the cathode 9 is communicated with the third through hole 21, the lower end of the pipe hole 16 of the cathode 9 is communicated with the first through hole 17, and the middle lower part of the anode 5 penetrates into the pipe hole 16 of the cathode 9.
According to the technical scheme, the power supply is a high-frequency high-voltage power supply, a high-voltage variable-frequency power supply or a super-audio frequency high-voltage power supply, the voltage of the power supply is 0.4 kilovolt to 200 kilovolts, and the frequency is 3000Hz-30 MHz.
According to the technical scheme, the power line 2 is provided with the current stabilizer 3 which is a programmable current stabilizer.
According to the technical scheme, the insulator is made of glass, porcelain bottles, nylon columns, silica gel or tetrafluoroethylene insulating columns and the like.
According to the above technical solution, the housing 20 is grounded by a ground wire.
According to the technical scheme, the upper end of the cathode 9 is fixedly connected with the lower end of the outlet cavity 7 through a fixing device.
The invention utilizes photoelectric effect to generate photon to form particles, electrons and ion flow of visible light, which is called as photon beam.
The invention utilizes the photoelectric effect generated by the particle property of photons in a high-voltage quantum electric field to form a large amount of visible photon beams. The photon beam knocks off dust or destroys molecular chains of dust-containing gas, so that the gas is decomposed and cracked quickly, water vapor is ionized into hydrogen ions and oxygen anions to form hydroxyl free radicals, and the hydroxyl free radicals participate in the reaction of the gas, and the physical and chemical properties of the gas are changed at an accelerated speed. The innovation of the invention is that a uniform super-strong electric field is generated by a light quantum beam generating device to form photons, high-frequency photons excite a cathode (a metal polar plate) to generate a large amount of particles and electron current, and various colored visible lights such as blue light, purple light and the like which are continuously emitted can be seen in the daytime and places with light rays and are accompanied by the howling sound of electrons by the reaction of the large amount of electron current and dust-containing gas.
The invention has the beneficial effects that: the system has the characteristics of good denitration, desulfurization and dust removal effects, and can meet the environmental protection requirement in a low-temperature state.
Drawings
Fig. 1 is a schematic structural view (external view) of a photon beam generating device according to the present invention.
Fig. 2 is a cross-sectional view of a light quantum beam generating device according to the present invention.
Fig. 3 is a schematic structural view of an anode in embodiment 1 of the present invention.
Fig. 4 is a top view of fig. 3.
Fig. 5 is a schematic structural view of an anode in embodiment 2 of the present invention.
Fig. 6 is a top view of fig. 5.
FIG. 7 is a schematic structural diagram of a photon beam flue gas low-temperature denitration system according to the present invention.
In the figure: 1-power supply, 2-power line, 3-current stabilizer, 4-insulator, 5-anode, 6-anode support, 7-outlet cavity, 8-outlet, 9-cathode, 10-inlet, 11-collecting device, 12-collected material outlet, 13-inlet cavity, 14-fixing device, 15-outlet cavity, 16-pipe hole, 17-first through hole, 18-collecting cavity, 19-second through hole, 20-shell, 21-third through hole, 22-fourth through hole, 23-electrode spine, 24-anode rod, upper end of 25-anode, 26-boiler, 27-SNCR denitration device, 28-first pipeline, 29-bag dust remover, 30-second pipeline, 31-fan, 32-wet desulphurization device, 33-third pipeline, 34-photon beam generation device, 35-fourth pipeline.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Example 1
As shown in fig. 7, the light quantum beam flue gas low-temperature denitration system includes an SNCR denitration device 27, a first pipeline 28, a bag-type dust collector 29, a second pipeline 30, a fan 31, a wet desulfurization device 32, a third pipeline 33, a light quantum beam generation device 34, and a fourth pipeline 35; the input end of an SNCR denitration device (or called SNCR denitration device) 27 is connected with the flue gas output end of a boiler 26, the output end of the SNCR denitration device 26 is connected with the input end of a bag-type dust remover 29 through a first pipeline 28, the output end of the bag-type dust remover 29 is connected with the input end of a wet desulphurization device 32 through a second pipeline 30, a fan 31 is arranged on the second pipeline 30, the output end of the wet desulphurization device 32 is connected with the inlet of a light quantum beam generating device 34 through a third pipeline 33, and the outlet of the light quantum beam generating device 34 is connected with the inlet of a chimney through a fourth pipeline 35.
The use of the light quantum beam flue gas low-temperature denitration system: flue gas output by the boiler enters an SNCR denitration device for denitration treatment; the flue gas after denitration treatment is sent into a bag-type dust remover 29 for dust removal through a first pipeline 28, and the flue gas after dust removal is sent into a wet desulphurization device 32 for desulphurization treatment through a second pipeline 30 and a fan 31; the flue gas after desulfurization treatment is sent to a photon beam generating device 34 through a third pipeline 33 for treatment (further desulfurization, denitration, dust removal, whitening and aerosol removal PM2.5), and the treated gas is sent to a chimney through a fourth pipeline 35 for emission.
As shown in fig. 1, 2, 3 and 4, the light quantum beam generating device (or flue gas treatment device) includes a power supply 1, an insulator 4, an anode 5, an anode support 6, an outlet cavity 7, a cathode 9, a collecting device 11, an inlet cavity 13 and a housing 20; an outlet cavity 15 is arranged in the outlet cavity 7, an outlet 8 is arranged on the right side surface of the outlet cavity 7 (for convenience of description, the left side is left, and the right side is right in fig. 2), a fourth through hole 22 is arranged on the upper end surface of the outlet cavity 7, a third through hole 21 is arranged on the lower end surface of the outlet cavity 7, the outlet 8, the fourth through hole 22 and the third through hole 21 are all communicated with the outlet cavity 15 of the outlet cavity 7, and the fourth through hole 22 is positioned right above the third through hole 21 (when the number of anodes 5 is multiple, the fourth through hole 22 and the third through hole 21 are correspondingly multiple in groups);
the right side surface of the inlet cavity 13 is provided with an inlet 10 (an inlet cavity is arranged in the inlet cavity 13), the upper end surface of the inlet cavity 13 is provided with a second through hole 19, the inlet 10 and the second through hole 19 are both communicated with the inlet cavity of the inlet cavity 13, and the lower end of the inlet cavity 13 is an opening end; the lower end of the inlet cavity 13 is fixedly connected with a collecting device (such as a collecting hopper) 11 (the lower port of the inlet cavity 13 is communicated with a collecting cavity 18 of the collecting device 11, the lower end part of the collecting device 11 is provided with a collected material outlet 12, and a control valve is arranged at the collected material outlet 12);
the cathodes 9 are positioned in the shell 20 (all the cathodes 9 are positioned in the shell 20), the lower ends of the cathodes 9 are fixedly connected (for example, welded or bolted) with the upper end of the inlet cavity 13 by the fixing device 14, the fixing device 14 is provided with first through holes 17, and the first through holes 17 are communicated with second through holes 19 on the inlet cavity 13; the upper end of the cathode 9 is fixedly connected (such as welded or bolted) with the lower end of the outlet cavity 7; the lower end of the outer shell 20 is fixedly connected with the fixing device 14 (such as welded or bolted connection; the outer shell 20 of the embodiment is in a square tube shape), and the upper end of the outer shell 20 is fixedly connected with the lower end of the outlet cavity 7 (such as welded or bolted connection; all the first through holes 17 and the third through holes 21 are positioned in the outer shell 20 to form a passage between the inlet and the outlet);
the upper end 25 of the anode 5 is connected with the anode support 6 (the anode support 6 can be fixed on the outlet cavity 7 or independently arranged on the foundation), the middle lower part of the anode 5 passes through the fourth through hole 22 and the third through hole 21 and then is positioned near the cathode 9 (the distance between the anode 5 and the cathode 9 is 2-60cm nearby; the middle lower part of the anode 5 is positioned in the shell 20; the lower end part of the anode 5 can be fixedly connected with the fixing device 14 by an insulator); the anode 5 is connected with the outlet cavity 7 through the insulator 4, and the insulator 4 is inserted into the fourth through hole 22; the upper end of the anode 5 is connected with the positive pole of the power supply 1 by a power line 2 (the power line 2 is provided with a current stabilizer 3), and the cathode 9 is connected with the negative pole of the power supply 1 by a power line (the power line is not shown in the connection in fig. 2).
The number of the cathodes 9 is 1-100, the number of the anodes is the number corresponding to the number of the cathodes { 16 cathodes are adopted in the embodiment, and the cross section of the shell 20 is square (the shell 20 is a square cylinder); the number of the fourth through holes 22, the number of the third through holes 21, and the number of the insulators 4 are all the same }.
The distance between the anode 5 and the cathode 9 is 2-60cm (the distance between the electrode sharp spine of the anode 5 closest to the cathode 9 and the cathode 9).
The anode is made of a conductive material (such as metal, alloy or graphene). The cathode is made of metal (metal plate) or alloy.
The cathode is in the shape of a plate, a tube (circular tube, square tube), a honeycomb or the like (in this embodiment 1, a tubular cathode is used).
In this embodiment, the cathode 9 is tubular, the upper end of the tube hole 16 of the cathode 9 is communicated with the third through hole 21, the lower end of the tube hole 16 of the cathode 9 is communicated with the first through hole 17, and the middle lower part of the anode 5 penetrates into the tube hole 16 of the cathode 9.
The fixing device 14 is plate-shaped (the plate-shaped fixing device is provided with 2-20 threaded connection holes for connection).
The power supply is a high-frequency high-voltage power supply, a high-voltage variable-frequency power supply or a super-audio high-voltage power supply (the power supply controls one anode 5 and one cathode 9, and can also control a plurality of anodes 5 and cathodes 9), the voltage of the power supply is 0.4 kilovolt to 200 kilovolt, and the frequency is 3000Hz-30MHz (megahertz).
And a current stabilizer 3 is arranged on the power line 2. Further, the current regulator is a programmable current regulator.
The insulator (or the insulating device) is made of glass, porcelain bottles, nylon columns, silica gel, tetrafluoroethylene insulating columns and the like. The insulator makes it possible to withstand the large potential difference that exists between the two electrodes.
The housing 20 is grounded by a ground line.
The upper end of the cathode 9 can also be fixedly connected with the lower end of the outlet cavity 7 by a fixing device.
The anode 5 is composed of an anode rod 24 and electrode spikes (discharge needles) 23, the upper end of the anode rod 24 is a connecting part for connection (for example, the upper end of the anode rod 24 is provided with an external thread), the middle lower part of the anode rod 24 is provided with a plurality of electrode spikes 23 (the number of the electrode spikes is 10-1000; the electrode spikes 23 can be integrated with the anode rod 24 or welded with the anode rod 24; the anode rod 24 is tubular, the diameter of the tube is 28mm), the electrode spikes 23 are spirally arranged on the anode rod 24 in a spiral lifting manner, the distance between adjacent electrode spikes 23 is 10-50mm, and the spiral distance a is 10-40mm (the height a of the up-down distance is shown in figure 3).
The electrode spikes (discharge needles) 23 are conical, the taper is 5-45 degrees, and the height of the electrode spikes is 10-30 mm.
Example 2
As shown in fig. 1, 2, 5 and 6, the anode is substantially the same as in example 1 except for the anode. The anode 5 consists of an anode rod body 24 and electrode spike groups, the upper end part of the anode rod body 24 is a connecting part for connection (for example, the upper end part of the anode rod body 24 is provided with an external thread), the middle lower part of the anode rod body 24 is provided with a plurality of electrode spike groups (the plurality of electrode spike groups are 3-30 electrode spike groups), the plurality of electrode spike groups are vertically arranged on the anode rod body 24 at intervals (arranged in parallel), and the distance c between every two adjacent electrode spike groups is 10-40 mm; each electrode spike group consists of a plurality of electrode spikes 23 (the number of the electrode spikes is 10-200; the electrode spikes 23 can be integrated with the anode rod body 24, the anode rod body 24 is tubular, the diameter of the tube is 28mm), and the distance b between every two adjacent electrode spikes 23 in each electrode spike group is 10-50mm (as shown in figure 5).
The anode is made of graphene, and the anode is also called a graphene photon beam electrode rod.
Use of light quantum beam generating device: an inlet 10 of the light quantum beam generating device is connected with flue gas to be treated, an outlet 8 of the light quantum beam generating device is connected with a discharge pipeline, a power supply 1 is switched on, the flue gas passes between an anode 5 and a cathode 9, high-frequency photons excite a cathode (a metal polar plate) to generate a large amount of particles and electron flow, the particle flow reacts with dust-containing gas through the large amount of electron flow to knock off dust or destroy molecular chains of the dust-containing gas, the gas is decomposed and cracked quickly, water vapor is ionized into hydrogen ions and oxygen anions to form hydroxyl free radicals and participate in the reaction of the gas, the dust falls into a collecting device 11, and the purified gas is discharged from the outlet 8.
Light quantum beam denitration process:
1. in the photon beam generator (radiation field), voltage and current generate glow discharge to form high-energy photon beam;
2. the photon beam is in contact with smoke and water, O2、H2O and other molecules obtain energy to generate active factors (O.atom, OH.free radical, H) with strong oxidizability2O.radical);
3. NO in the smoke is oxidized by free radicals to generate NO firstly2Continues to be oxidized to generate N2O5；
4、N2O5Reacting with water molecule to generate HNO3；
5. Supplementing a proper amount of ammonia gas in the flue gas, and absorbing the generated NH4NO3；
6. The generated ammonium salt is captured by the electrode and collected.
Light quantum beam denitration principle
Figure BDA0003198518210000061
Figure BDA0003198518210000062
HNo3+NH3→NH4No3 (3)
At present, the SNCR denitration efficiency can not meet the environmental protection requirement, the SCR denitration has the defects of strict requirement on the flue gas temperature, large investment and the like, and the light quantum beam denitration technology is combined with the SNCR denitration technology, so that the environmental protection requirement can be met in a low-temperature state.
The effect is as follows: the smoke is discharged into particulate matter discharge concentration of less than 5mg/Nm after passing through a photon beam generating device (or called smoke treatment device)3，SO2Discharge concentration < 15mg/Nm3NOx emission concentration < 30mg/Nm3Without "wettingPlume phenomenon. The invention has the characteristics of whitening, removing PM2.5 of aerosol, and good effects of desulfurization, denitration and dust removal.
While embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields of application of the invention, and further modifications may readily be effected by those skilled in the art, so that the invention is not limited to the specific details without departing from the general concept defined by the claims and the scope of equivalents.
The above description is intended to illustrate the preferred embodiments of the present invention, but the present invention is only a preferred embodiment of the present invention, and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims (10)

1. The light quantum beam flue gas low-temperature denitration system is characterized by comprising an SNCR denitration device (27), a first pipeline (28), a bag-type dust remover (29), a second pipeline (30), a fan (31), a wet desulphurization device (32), a third pipeline (33), a light quantum beam generating device (34) and a fourth pipeline (35); the input end of the SNCR denitration device (27) is connected with the flue gas output end of the boiler (26), the output end of the SNCR denitration device (26) is connected with the input end of the bag-type dust remover (29) through a first pipeline (28), the output end of the bag-type dust remover (29) is connected with the input end of the wet desulphurization device (32) through a second pipeline (30), a fan (31) is arranged on the second pipeline (30), the output end of the wet desulphurization device (32) is connected with the inlet of the light quantum beam generating device (34) through a third pipeline (33), and the outlet of the light quantum beam generating device (34) is connected with the inlet of the chimney through a fourth pipeline (35).
2. The photon beam flue gas low-temperature denitration system according to claim 1, wherein: the light quantum beam generating device comprises a power supply (1), an insulator (4), an anode (5), an anode support (6), an outlet cavity (7), a cathode (9), a collecting device (11), an inlet cavity (13) and a shell (20); an outlet cavity (15) is formed in the outlet cavity (7), an outlet (8) is formed in the right side face of the outlet cavity (7), a fourth through hole (22) is formed in the upper end face of the outlet cavity (7), a third through hole (21) is formed in the lower end face of the outlet cavity (7), the outlet (8), the fourth through hole (22) and the third through hole (21) are communicated with the outlet cavity (15) of the outlet cavity (7), and the fourth through hole (22) is located right above the third through hole (21);
an inlet (10) is formed in the right side face of the inlet cavity (13), a second through hole (19) is formed in the upper end face of the inlet cavity (13), the inlet (10) and the second through hole (19) are communicated with the inlet cavity of the inlet cavity (13), and the lower end of the inlet cavity (13) is an open end; the lower end of the inlet cavity (13) is fixedly connected with the collecting device (11);
the cathode (9) is positioned in the shell (20), the lower end of the cathode (9) is fixedly connected with the upper end of the inlet cavity (13) through a fixing device (14), a first through hole (17) is formed in the fixing device (14), and the first through hole (17) is communicated with a second through hole (19) in the inlet cavity (13); the upper end of the cathode (9) is fixedly connected with the lower end of the outlet cavity (7); the lower end part of the shell (20) is fixedly connected with the fixing device (14), and the upper end part of the shell (20) is fixedly connected with the lower end of the outlet cavity (7);
the upper end part of the anode (5) is connected with the anode support (6), and the middle lower part of the anode (5) passes through the fourth through hole (22) and the third through hole (21) and then is positioned near the cathode (9); the anode (5) is connected with the outlet cavity (7) through the insulator (4), and the insulator (4) is inserted into the fourth through hole (22); the upper end of the anode (5) is connected with the anode of the power supply (1) through a power line (2), and the cathode (9) is connected with the cathode of the power supply (1) through a power line.
3. The photon beam flue gas low-temperature denitration system according to claim 2, wherein: the number of the cathodes (9) is 1-100, and the number of the anodes is the number corresponding to the number of the cathodes.
4. The photon beam flue gas low-temperature denitration system according to claim 2, wherein: the distance between the anode (5) and the cathode (9) is 2-60 cm.
5. The photon beam flue gas low-temperature denitration system according to claim 2, wherein: the anode is made of a conductive material; the cathode is made of metal or alloy.
6. The photon beam flue gas low-temperature denitration system according to claim 2, wherein: the cathode is plate-shaped, tubular or honeycomb-shaped.
7. The photon beam flue gas low-temperature denitration system according to claim 2, wherein: the cathode (9) is tubular, the upper end of the pipe hole (16) of the cathode (9) is communicated with the third through hole (21), the lower end of the pipe hole (16) of the cathode (9) is communicated with the first through hole (17), and the middle lower part of the anode (5) penetrates into the pipe hole (16) of the cathode (9).
8. The photon beam flue gas low-temperature denitration system according to claim 2, wherein: the power supply is a high-frequency high-voltage power supply, a high-voltage variable-frequency power supply or a super-audio frequency high-voltage power supply, the voltage of the power supply is 0.4 kilovolt to 200 kilovolt, and the frequency is 3000Hz-30 MHz.
9. The photon beam flue gas low-temperature denitration system according to claim 2, wherein: and a current stabilizer (3) is installed on the power line (2), and the current stabilizer is a programmable current stabilizer.
10. The photon beam flue gas low-temperature denitration system according to claim 2, wherein: the insulator is made of glass, porcelain bottles, nylon columns, silica gel or tetrafluoroethylene insulating columns.
CN202110897325.4A 2021-08-05 2021-08-05 Light quantum beam flue gas low temperature denitration system Pending CN113499686A (en)

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CN202210352491.0A CN114570201A (en) 2021-08-05 2022-04-05 Electron beam flue gas low temperature deNOx systems

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CN105561776B (en) * 2016-02-03 2018-08-17 江门市同力环保科技有限公司 A kind of industry coal-boiler flue gas multiple pollutant minimum discharge cooperation-removal system
CN206980987U (en) * 2017-10-25 2018-02-09 福建龙净环保股份有限公司 A kind of flue gas processing device
CN207308099U (en) * 2017-11-14 2018-05-04 山东聊城三阳环保产业有限公司 High voltage pulse electric field low-temperature denitration and cleaner
CN108201783A (en) * 2018-02-01 2018-06-26 广州广大气治理工程有限公司 A kind of boiler smoke multiple pollutant deep treatment device, system and method
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