CN102728221A - Flue gas light-wave desulfurization and denitrification device - Google Patents
Flue gas light-wave desulfurization and denitrification device Download PDFInfo
- Publication number
- CN102728221A CN102728221A CN2012102447453A CN201210244745A CN102728221A CN 102728221 A CN102728221 A CN 102728221A CN 2012102447453 A CN2012102447453 A CN 2012102447453A CN 201210244745 A CN201210244745 A CN 201210244745A CN 102728221 A CN102728221 A CN 102728221A
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- China
- Prior art keywords
- light wave
- flue gas
- cylindrical shell
- light
- processor
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 239000003546 flue gas Substances 0.000 title claims abstract description 26
- 238000006477 desulfuration reaction Methods 0.000 title abstract description 14
- 230000023556 desulfurization Effects 0.000 title abstract description 13
- 238000009423 ventilation Methods 0.000 claims abstract description 12
- 239000000523 sample Substances 0.000 claims abstract description 11
- 238000010992 reflux Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 24
- 230000008569 process Effects 0.000 claims description 12
- 238000007493 shaping process Methods 0.000 claims description 6
- 239000012141 concentrate Substances 0.000 claims description 3
- 230000001131 transforming effect Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000011282 treatment Methods 0.000 abstract description 9
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000002485 combustion reaction Methods 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 239000004568 cement Substances 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 150000002739 metals Chemical class 0.000 abstract 1
- 238000005192 partition Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 7
- 239000002250 absorbent Substances 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 230000002745 absorbent Effects 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 238000010894 electron beam technology Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L sulfate group Chemical group S(=O)(=O)([O-])[O-] QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
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Abstract
The invention relates to flue gas treatment equipment of industrial combustion kilns, particularly a flue gas light-wave desulfurization and denitrification device which is characterized by comprising a processor and a light-wave generator, wherein the treatment device is provided with a horizontal cylinder, one end of the cylinder is provided with a flue gas inlet, and the other end is provided with a flue gas outlet; a plurality of vertically arranged ventilation partitions are arranged in the cylinder to form at least two treatment cavities; the bottom of the cylinder below the first treatment cavity is provided with a reflux bucket; an ash discharge bucket is respectively arranged below the rest treatment cavities; the top of the inside of the cylinder behind each treatment cavity after the second treatment cavity is respectively provided with a light-wave reactor; the light-wave generator comprises a switching supply cabinet and an insulation box; and a light-wave generation circuit and a light-wave transmitting probe are installed in the insulation box. The invention solves the problems of high energy consumption, high equipment investment, especially secondary pollution and the like in the existing desulfurization and denitrification mode, and can be widely used in flue gas treatment of combustion furnaces in cement, steel, electric power, nonferrous metals, chemical industry and other industries.
Description
The (1) technical field: the present invention relates to environmental protection equipment, especially a kind of flue gas light wave desulfuring and denitrifying apparatus, the flue gas that can be widely used in the burning kiln in the industries such as iron and steel, cement, electric power, coloured, chemical industry is handled.
(2) background technology: control SO
2Before discharge technology can be divided into burning by its present position in combustion process, in the burning, three kinds of burning back desulfurization.Burning back flue gas desulfurization technique is the desulfurization method of the unique large-scale commercial applications application of our times, is control SO
2The major technique means of pollution and acid rain.And flue gas desulfurization is considered to control SO
2Effective way.Flue gas desulfurization mainly contains doctor treatments such as wet method, semidry method.Wherein, wet method, semidry process maturation are used wider fume desulphurization method.But these two class methods have brought a series of post-processed problems such as water pollution very serious.
Gas denitrifying technology mainly contains denitration technologies such as SCR and SNCR at present.Two kinds of technical matters are all ripe, but these two kinds of technical method energy consumptions are high, and floor space is big.The denitrfying agent use amount is big and expensive, makes the denitration cost very big, and producer deals with difficulty.
The (3) summary of the invention: the object of the invention will solve existing flue gas desulfurization and denitrification mode energy consumption height exactly, and equipment investment is big, and processing cost is high, particularly has secondary pollution problems, and a kind of flue gas light wave desulfuring and denitrifying apparatus is provided.
Concrete scheme of the present invention is: a kind of flue gas light wave desulfuring and denitrifying apparatus is characterized in that: include partly composition of processor and light wave generator two, said processor has horizontally-arranged cylindrical shell; One end of cylindrical shell is provided with into mouth; The other end is provided with outlet flue, in cylindrical shell, is provided with some vertically arranged ventilation dividing plates, forms at least two process chambers; Below the bottom of cylindrical shell is positioned at first process chamber, be provided with the bucket that refluxes, the below of all the other each process chambers is provided with ash-unloading hopper; In cylindrical shell, be positioned at second and the later top of chamber of respectively handling the light wave reactor all is installed; Said light wave generator includes Switching Power Supply cabinet and insulated case, dress light wave generation circuit and light wave transmitting probe in insulated case, and the light wave transmitting probe is connected with light wave reactor in the processor, and the Switching Power Supply cabinet is that light wave generation circuit provides adjustable current.
Light wave generation circuit in the generator of light wave described in the present invention; Include the industrial frequency rectifying filter circuit, full bridge inverter, high-frequency filter circuit, high frequency transforming circuit, the light wave pulse shaping circuit that connect successively; And with full bridge inverter and high-frequency filter circuit and be connected to the control signal unit, wherein the light wave pulse shaping circuit of rear end connects the light wave reactor through the light wave transmitting probe.
In the Switching Power Supply cabinet in the generator of light wave described in the present invention transformer, adjuster and signal list are installed.
Ventilation dividing plate in the cylindrical shell of processor described in the present invention, with the cylinder inboard wall welding, the bottom of ventilation dividing plate has air vent all around.
Be convenient concentrated discharging, be equipped with one in the bottom of processor cylindrical shell among the present invention and concentrate ash bucket down, catch said ash-unloading hopper.
During the present invention uses, with Sprayable with alkali and ammonia as absorbent, in pipeline, be blown into, and be blown into catalyst and oxidant simultaneously, together get in the processor with flue gas, startup light wave generator makes flue gas in the processor cylindrical shell, carry out desulfurization and denitration.End product is sulfate, nitrate and sulphur, can be used as the material of other industry.Can make full use of the light wave energy with absorbent, catalyst make flue gas desulfurization and denitrification effective during the present invention uses, capacity usage ratio promotes, and operating cost reduction, corrosion on Equipment property reduce.
In light wave desulphurization denitration technology, the light wave generator is one of key that realizes light wave desulphurization denitration technology.
The light wave generator is the flue gas desulfurization and denitrification technology of coming from the electronic beam method development.The light wave generator is to lean on the light wave power supply in the common response device, to form plasma; Produce the high energy light ripple and form the non-equilibrium plasma state, produce a large amount of active particles, and the energy consumption of driving particle is minimum; Thereby capacity usage ratio is high, obtains higher denitrification efficiency simultaneously.
Through light wave generator plasma that produces and the free radical with very strong oxidisability, wherein the average energy of active particle is higher than the bond energy of gas molecule.The result of these collisions is: open on the one hand the gas molecule key and generate some atoms and molecule, produce on the other hand a large amount of-OH ,-free radical and the extremely strong O of oxidisability such as O
3By these atoms, molecule and O
3Deng the caused chemical reaction of forming of the active particle harmful substance removal (desulfurization, denitration) in the waste gas the most at last.
O
2+e—2O+e;
O
2+O—O
3;
H
2O+e—H+HO+e;
More than for active particle is the product that the effect of light wave generator produces, SO
2And NO, a series of electrochemical reaction of process:
SO
2+O—SO
3;SO
3+H
2O—H
2SO
4;
NO+O—NO
2;NO
2+H
2O—H
2NO
3;
Adding under the condition of absorbent, finally generating sulfate and nitrate:
2NaOH (alkali)+H
2SO
4-Na
2SO
4+ 2H
2O;
NaOH (alkali)+HNO
3-NaNO
3+ H
2O;
2NH
3+H
2SO
4—(NH
4)
2SO
4;
NH
3+HNO
3—NH
4NO
3；
Therefore, the light wave generator is compared with electron beam, because light wave only improves electron temperature, and does not improve particle temperature, and the energy effciency ratio electron beam shines high 2 times.The light wave generator apparatus is simple, and is easy and simple to handle, and power consumption is low more than 60% than electron beam irradiation method.Flue gas is carried out desulphurization denitration administer the energy consumed and be much smaller, thereby become the forward position of present stage desulphurization denitration, and developing direction.
In the work of light wave generator, O
2Steam can improve SO greatly
2, NO oxidation and removal efficiency.The migration rate of ion can reduce with the increase of humidity, and therefore, the light wave electric current is lower in humid air, and steam is to SO
2, NO absorptivity improve owing to the existence of light wave.When liquid phase water sprayed through electrochemical nozzle, it was to SO
2, NO absorbability be increased sharply, the amount of removing far surpasses saturated uptake.
In processor, SO
2Higher at 60 ℃ of-80 ℃ of scope removal efficiencies, SO
2Removal efficiency raises with temperature and reduces, but the removal efficiency of NO is constant.Through spray cooling, make that to remove in the scope that remains on 60 ℃-80 ℃ in the flue gas in the processor be necessary.
The present invention has the following advantages: equipment is simple, and is easy and simple to handle, invests for a short time, and cost is low; Floor space is little, and energy consumption is low, and running temperature is low, and the absorbent consumption is few; Use cost is low, non-secondary pollution particularly, and desulfuration efficiency can reach more than 90%, and denitration efficiency reaches more than 75%.
The (4) description of drawings:
Fig. 1 is a general structure sketch map of the present invention;
Fig. 2 is the ventilation dividing plate front view among the present invention;
Fig. 3 is the light wave generation circuit block diagram among the present invention;
Fig. 4 is the light wave generation circuit structure diagram among the present invention.
Among the figure: 1-advances mouth, 2-ventilation dividing plate, 3-fixed frame, 4-light wave reactor, 5-light wave transmitting probe; The 6-insulated case, 7-light wave generation circuit, 8-signal list, 9-adjuster, 10-transformer; 11-Switching Power Supply cabinet, the 12-cylindrical shell, 13-outlet flue, 14-ash-unloading hopper, 15-are concentrated ash bucket down; The 16-bucket that refluxes, 17-absorbent recovery pond, 18-process chamber, 19-air vent.
The (5) specific embodiment:
Referring to Fig. 1, the present invention includes by processor and light wave generator two and partly form, said processor has horizontally-arranged cylindrical shell 12; One end of cylindrical shell 12 is provided with into mouth 1, and the other end is provided with outlet flue 13, in cylindrical shell 12, is provided with six vertically arranged ventilation dividing plates 2; Five process chambers 18 have been formed; (according to exhaust gas volumn the process chamber number is set, general 4-6, gets final product) but be no less than two; Below the bottom of cylindrical shell 12 is positioned at first process chamber 18, be provided with the bucket 16 external absorbent recovery ponds 17 that reflux, the below of all the other each process chambers is provided with ash-unloading hopper 14; In cylindrical shell 12, be positioned at second and the later top of chamber of respectively handling and light wave reactor 4 all be installed through fixed frame 3; Said light wave generator includes Switching Power Supply cabinet 11 and insulated case 6; Light wave generation circuit 7 and light wave transmitting probe 5 are housed in insulated case 6; Light wave transmitting probe 5 is connected with light wave reactor 4 in the processor, and Switching Power Supply cabinet 11 provides adjustable current for light wave generation circuit 7.
In the present embodiment; Light wave generation circuit 7 in the said light wave generator; Include industrial frequency rectifying filter circuit, full bridge inverter, high-frequency filter circuit, high frequency transforming circuit, the light wave pulse shaping circuit that connects successively referring to Fig. 3,4; And with full bridge inverter and high-frequency filter circuit and be connected to the control signal unit, wherein the light wave pulse shaping circuit of rear end connects the light wave reactor through the light wave transmitting probe.
In the present embodiment, transformer 10, adjuster 9 and signal list 8 are installed in the Switching Power Supply cabinet 11 in the said light wave generator.
In the present embodiment, the ventilation dividing plate 2 in the said processor cylindrical shell 12, with the welding of cylindrical shell 12 inwalls, the bottom of ventilation dividing plate has air vent 19, referring to Fig. 2 all around.
In the present embodiment, be equipped with one in the bottom of processor cylindrical shell 12 and concentrate ash bucket 15 down, catch said ash-unloading hopper 14.
Claims (5)
1. flue gas light wave desulfuring and denitrifying apparatus is characterized in that: include processor and light wave generator two is partly formed, said processor has horizontally-arranged cylindrical shell; One end of cylindrical shell is provided with into mouth; The other end is provided with outlet flue, in cylindrical shell, is provided with some vertically arranged ventilation dividing plates, forms at least two process chambers; Below the bottom of cylindrical shell is positioned at first process chamber, be provided with the bucket that refluxes, the below of all the other each process chambers is provided with ash-unloading hopper; In cylindrical shell, be positioned at second and the later top of chamber of respectively handling the light wave reactor all is installed; Said light wave generator includes Switching Power Supply cabinet and insulated case, and light wave generation circuit and light wave transmitting probe are housed in insulated case, and the light wave transmitting probe is connected with light wave reactor in the processor, and the Switching Power Supply cabinet is that light wave generation circuit provides adjustable current.
2. a kind of flue gas light wave desulfuring and denitrifying apparatus according to claim 1; It is characterized in that: the light wave generation circuit in the said light wave generator; Include the industrial frequency rectifying filter circuit, full bridge inverter, high-frequency filter circuit, high frequency transforming circuit, the light wave pulse shaping circuit that connect successively; And with full bridge inverter and high-frequency filter circuit and be connected to the control signal unit, wherein the light wave pulse shaping circuit of rear end connects the light wave reactor through the light wave transmitting probe.
3. a kind of flue gas light wave desulfuring and denitrifying apparatus according to claim 1 is characterized in that: in the Switching Power Supply cabinet in the said light wave generator transformer, adjuster and signal list are installed.
4. a kind of flue gas light wave desulfuring and denitrifying apparatus according to claim 1 is characterized in that: the ventilation dividing plate in the said processor cylindrical shell, with the cylinder inboard wall welding, the bottom of ventilation dividing plate has air vent all around.
5. a kind of flue gas light wave desulfuring and denitrifying apparatus according to claim 1 is characterized in that: be equipped with one in the bottom of processor cylindrical shell and concentrate ash bucket down, catch said ash-unloading hopper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210244745.3A CN102728221B (en) | 2012-07-16 | 2012-07-16 | Flue gas light-wave desulfurization and denitrification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210244745.3A CN102728221B (en) | 2012-07-16 | 2012-07-16 | Flue gas light-wave desulfurization and denitrification device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102728221A true CN102728221A (en) | 2012-10-17 |
| CN102728221B CN102728221B (en) | 2014-04-02 |
Family
ID=46984943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210244745.3A Expired - Fee Related CN102728221B (en) | 2012-07-16 | 2012-07-16 | Flue gas light-wave desulfurization and denitrification device |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106377999A (en) * | 2016-12-12 | 2017-02-08 | 黄家礼 | Dry desulfurization electric bag device |
| CN110339684A (en) * | 2019-07-12 | 2019-10-18 | 汤辉 | A kind of boiler flue gas desulfurization denitrification apparatus and method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08103668A (en) * | 1994-10-06 | 1996-04-23 | Sumitomo Heavy Ind Ltd | Production of desulfurization and denitrification catalyst, the catalyst and treatment of waste gas |
| CN202741003U (en) * | 2012-07-16 | 2013-02-20 | 黄敬文 | Flue gas light-wave desulfurization and denitrification device |
-
2012
- 2012-07-16 CN CN201210244745.3A patent/CN102728221B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08103668A (en) * | 1994-10-06 | 1996-04-23 | Sumitomo Heavy Ind Ltd | Production of desulfurization and denitrification catalyst, the catalyst and treatment of waste gas |
| CN202741003U (en) * | 2012-07-16 | 2013-02-20 | 黄敬文 | Flue gas light-wave desulfurization and denitrification device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106377999A (en) * | 2016-12-12 | 2017-02-08 | 黄家礼 | Dry desulfurization electric bag device |
| CN110339684A (en) * | 2019-07-12 | 2019-10-18 | 汤辉 | A kind of boiler flue gas desulfurization denitrification apparatus and method |
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| Publication number | Publication date |
|---|---|
| CN102728221B (en) | 2014-04-02 |
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Application publication date: 20121017 Assignee: Wuhan Langdi Environmental Protection Technology Engineering Co.,Ltd. Assignor: Huang Jingwen Contract record no.: 2015420000061 Denomination of invention: Flue gas light-wave desulfurization and denitrification device Granted publication date: 20140402 License type: Exclusive License Record date: 20150429 |
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