CN113426292A - Light quantum beam flue gas desulfurization self-cleaning scale-free system - Google Patents

Light quantum beam flue gas desulfurization self-cleaning scale-free system Download PDF

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CN113426292A
CN113426292A CN202110898637.7A CN202110898637A CN113426292A CN 113426292 A CN113426292 A CN 113426292A CN 202110898637 A CN202110898637 A CN 202110898637A CN 113426292 A CN113426292 A CN 113426292A
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hole
pipeline
cathode
flue gas
anode
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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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    • 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
    • B01D53/86—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
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • 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
    • B01D49/00—Separating dispersed particles from gases, air or vapours by other methods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
    • 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
    • B01D53/32—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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    • 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
    • B01D53/54—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
    • B01D53/80—Semi-solid phase processes, i.e. by using slurries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/017—Combinations of electrostatic separation with other processes, not otherwise provided for
    • 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
    • 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
    • B01D2259/81—X-rays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • 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
    • B01D2259/818—Employing electrical discharges or the generation of a plasma

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  • Biomedical Technology (AREA)
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Abstract

The invention belongs to the field of environmental protection. The light quantum beam flue gas desulfurization self-cleaning scale-free system is characterized by comprising an SNCR (selective non-catalytic reduction) denitration device, an SCR (selective catalytic reduction) denitration device, a first pipeline, a semi-dry desulfurization tower, a second pipeline, a bag-type dust remover, a third pipeline, a fan, 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 SCR denitration device, and the output end of the SCR denitration device is connected with the input end of the semi-dry desulfurization tower through a first pipeline; the output end of the semidry desulfurization tower is connected with the input end of a bag-type dust remover through a second pipeline, the output end of the bag-type dust remover is connected with the inlet of a light quantum beam generating device through a third pipeline, a fan is arranged on the third pipeline, and the outlet of the light quantum beam generating device is connected with the inlet of a chimney through a fourth pipeline. The system has the characteristics of good desulfurization, denitration, whitening and dedusting effects.

Description

Light quantum beam flue gas desulfurization self-cleaning scale-free system
Technical Field
The invention belongs to the field of environmental protection, and particularly relates to a light quantum beam flue gas desulfurization self-cleaning scale-free 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. When the saturated wet smoke discharged from the chimney contacts with the ambient air with lower temperature, in the process of cooling the smoke, the water vapor contained in the smoke is supersaturated and condensed, and condensed water drops refract and scatter light, so that the smoke plume presents white or gray, which is called as 'wet smoke plume' (commonly called 'big white smoke').
The existing methods and devices for desulfurization, denitration, whitening and dedusting of flue gas are more, such as Chinese patents: CN202010128903.3 (named as flue gas desulfurization, denitration, de-whitening and dedusting integrated equipment), CN201911308365.X (a boiler flue gas de-whitening system), CN201822027386.1 (hot and wet flue gas de-whitening and dedusting device), CN201821740452.3 (integrated process system for steel mill sintering flue gas denitration and de-whitening), 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 flue gas desulfurization self-cleaning scale-free system which has the characteristics of good desulfurization, denitration, white removal and dust removal effects.
In order to achieve the purpose, the invention adopts the technical scheme that: the light quantum beam flue gas desulfurization self-cleaning scale-free system is characterized by comprising an SNCR (selective non-catalytic reduction) denitration device 26, an SCR denitration device 27, a first pipeline 28, a semi-dry desulfurization tower 29, a second pipeline 30, a bag-type dust remover 31, a third pipeline 32, a fan 33, a light quantum beam generating device 34 and a fourth pipeline 35; the input end of the SNCR denitration device 26 is connected with the flue gas output end of the boiler 36, the output end of the SNCR denitration device 26 is connected with the input end of the SCR denitration device 27, and the output end of the SCR denitration device 27 is connected with the input end of the semi-dry desulfurization tower 29 through a first pipeline 28; the output end of the semi-dry desulfurization tower 29 is connected with the input end of a bag-type dust collector 29 through a second pipeline 30, the output end of the bag-type dust collector 29 is connected with the inlet of a light quantum beam generating device 34 through a third pipeline 32, a fan 33 is arranged on the third pipeline 32, and the outlet of the light quantum beam generating device 34 is connected with the inlet of a chimney through a 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 25 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 in the shape of a plate, a tube or a honeycomb and the like.
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-30MHz (megahertz).
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, 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 desulfurization, denitration, whitening and dedusting effects.
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 desulfurization self-cleaning scale-free 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 spike, 24-anode rod, upper end of 25-anode, 26-SNCR denitration device, 27-SCR denitration device, 28-first pipeline 28, 29-semi-dry desulfurization tower, 30-second pipeline, 31-bag dust collector, 32-third pipeline, 33-fan, 34-light quantum beam generating device, 35-fourth pipeline and 36-boiler.
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 desulfurization self-cleaning scale-free system comprises an SNCR denitration device 26, an SCR denitration device 27, a first pipeline 28, a semi-dry desulfurization tower 29, a second pipeline 30, a bag-type dust remover 31, a third pipeline 32, a fan 33, a light quantum beam generating device 34, and a fourth pipeline 35; the input end of an SNCR (or called SNCR) denitration device 26 is connected with the flue gas output end of a boiler 36, the output end of the SNCR denitration device 26 is connected with the input end of an SCR denitration device 27, and the output end of the SCR denitration device 27 is connected with the input end of a semi-dry desulfurization tower 29 through a first pipeline 28; the output end of the semi-dry desulfurization tower 29 is connected with the input end of a bag-type dust collector 29 through a second pipeline 30, the output end of the bag-type dust collector 29 is connected with the inlet of a light quantum beam generating device 34 through a third pipeline 32, a fan 33 is arranged on the third pipeline 32, 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 a photon beam flue gas desulfurization self-cleaning scale-free system: flue gas output by the boiler sequentially enters an SNCR (selective non-catalytic reduction) denitration device and an SCR denitration device for denitration treatment; the flue gas after denitration treatment is sent into a semidry desulfurization tower 29 for desulfurization treatment through a first pipeline 28, the flue gas after desulfurization treatment is sent into a bag-type dust remover 29 for dust removal through a second pipeline 30, the flue gas after dust removal is sent into a photon beam generating device 34 for treatment (further desulfurization, denitration and dust removal, whitening removal and aerosol PM2.5 removal) through a third pipeline 32 and a fan 33, and the treated gas is sent into 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 of the anode 5 can also 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, a porcelain bottle, a nylon column, silica gel or a tetrafluoroethylene insulating column 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 desulfurization 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. SO in flue gas2Is oxidized by free radicals to generate H2SO4；
4. Supplementing a proper amount of ammonia gas into the flue gas to absorb the generated (NH)4)2SO4；
5. The generated ammonium salt is captured by the electrode and collected.
Light quantum beam desulfurization reaction principle:
Figure BDA0003198950620000061
Figure BDA0003198950620000062
Figure BDA0003198950620000063
H2So4+2NH3→(NH4)2So4 (4)
because the flue gas after wet desulphurization has the phenomena of gypsum rain, big white smoke and the like, secondary pollution is formed on air, and the semi-dry desulphurization is gradually paid attention by people at present, but the semi-dry desulphurization has relatively low efficiency and is not widely applied compared with the wet desulphurization, and the light quantum beam desulphurization technology can make up the desulphurization efficiency of the semi-dry desulphurization.
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/Nm3And no 'wet smoke plume' phenomenon exists. 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 desulfurization self-cleaning scale-free system is characterized by comprising an SNCR (selective non-catalytic reduction) denitration device (26), an SCR denitration device (27), a first pipeline (28), a semi-dry desulfurization tower (29), a second pipeline (30), a bag-type dust remover (31), a third pipeline (32), a fan (33), a light quantum beam generating device (34) and a fourth pipeline (35); the input end of the SNCR denitration device (26) is connected with the flue gas output end of the boiler (36), the output end of the SNCR denitration device (26) is connected with the input end of the SCR denitration device (27), and the output end of the SCR denitration device (27) is connected with the input end of the semi-dry desulfurization tower (29) through a first pipeline (28); the output end of the semi-dry desulfurization tower (29) is connected with the input end of a bag-type dust remover (29) through a second pipeline (30), the output end of the bag-type dust remover (29) is connected with the inlet of a light quantum beam generating device (34) through a third pipeline (32), a fan (33) is arranged on the third pipeline (32), and the outlet of the light quantum beam generating device (34) is connected with the inlet of a chimney through a fourth pipeline (35).
2. The photon beam flue gas desulfurization self-cleaning scale-free system of 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 desulfurization self-cleaning scale-free system of 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 desulfurization self-cleaning scale-free system of claim 2, wherein: the distance between the anode (5) and the cathode (9) is 2-60 cm.
5. The photon beam flue gas desulfurization self-cleaning scale-free system of 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 desulfurization self-cleaning scale-free system of claim 2, wherein: the cathode is plate-shaped, tubular or honeycomb-shaped.
7. The photon beam flue gas desulfurization self-cleaning scale-free system of 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 desulfurization self-cleaning scale-free system of 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 desulfurization self-cleaning scale-free system of 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 desulfurization self-cleaning scale-free system of claim 2, wherein: the insulator is made of glass, porcelain bottles, nylon columns, silica gel or tetrafluoroethylene insulating columns.
CN202110898637.7A 2021-08-05 2021-08-05 Light quantum beam flue gas desulfurization self-cleaning scale-free system Pending CN113426292A (en)

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Application publication date: 20210924