CN103657366A - Flue gas dust-removal mercury-removal desulfurizing system - Google Patents
Flue gas dust-removal mercury-removal desulfurizing system Download PDFInfo
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- CN103657366A CN103657366A CN201310631989.1A CN201310631989A CN103657366A CN 103657366 A CN103657366 A CN 103657366A CN 201310631989 A CN201310631989 A CN 201310631989A CN 103657366 A CN103657366 A CN 103657366A
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- China
- Prior art keywords
- flue gas
- mercury
- smoke
- removal
- dust
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- 239000003546 flue gas Substances 0.000 title claims abstract description 57
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 230000003009 desulfurizing effect Effects 0.000 title abstract 3
- 239000000428 dust Substances 0.000 claims abstract description 35
- 229910052753 mercury Inorganic materials 0.000 claims abstract description 32
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000007921 spray Substances 0.000 claims abstract description 19
- 238000001179 sorption measurement Methods 0.000 claims abstract description 15
- 230000001590 oxidative effect Effects 0.000 claims abstract description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 9
- 235000011114 ammonium hydroxide Nutrition 0.000 claims abstract description 6
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims abstract description 5
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims abstract description 5
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052794 bromium Inorganic materials 0.000 claims abstract description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 26
- 239000000779 smoke Substances 0.000 claims description 24
- 238000005367 electrostatic precipitation Methods 0.000 claims description 16
- 239000007789 gas Substances 0.000 claims description 16
- 229910021529 ammonia Inorganic materials 0.000 claims description 13
- 239000002245 particle Substances 0.000 claims description 12
- 239000003517 fume Substances 0.000 claims description 10
- 241000628997 Flos Species 0.000 claims description 6
- 230000010355 oscillation Effects 0.000 claims description 6
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 4
- 239000000460 chlorine Substances 0.000 claims description 4
- 229910052801 chlorine Inorganic materials 0.000 claims description 4
- 238000007602 hot air drying Methods 0.000 claims description 3
- 210000004877 mucosa Anatomy 0.000 claims description 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000001914 filtration Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 235000019270 ammonium chloride Nutrition 0.000 abstract description 2
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052921 ammonium sulfate Inorganic materials 0.000 abstract description 2
- 235000011130 ammonium sulphate Nutrition 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 239000003337 fertilizer Substances 0.000 abstract description 2
- 239000010419 fine particle Substances 0.000 abstract description 2
- -1 mercury ions Chemical class 0.000 abstract 2
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 abstract 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 abstract 1
- 239000011362 coarse particle Substances 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 239000002956 ash Substances 0.000 description 8
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- 239000003245 coal Substances 0.000 description 6
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010882 bottom ash Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- BQPIGGFYSBELGY-UHFFFAOYSA-N mercury(2+) Chemical compound [Hg+2] BQPIGGFYSBELGY-UHFFFAOYSA-N 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
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Abstract
The invention relates to a flue gas dust-removal mercury-removal desulfurizing system. The system comprises a flue gas temperature control pipe, a flue gas oxidizing tower, a flue gas dust-removal device and a mercury adsorption chamber, which are connected sequentially. The flue gas dust-removal mercury-removal desulfurizing system is to carry out physical filtration and electrostatic adsorption to effectively filter, settle and separate out coarse and fine particles and dust in the high-temperature flue gas for several times, and initially remove large-granular mercury from the flue gas to facilitate reducing the load of the follow-up flue gas mercury-removal device. When the mercury is removed, firstly the temperature of the flue gas in the temperature control pipe is controlled at 140 DEG C; the chlorine gas is jet to oxidize the flue gas to generate gas-phase mercury ions; then the gas-phase mercury ions are adsorbed by bromine-loaded activated carbon; the residual mercury and sulfide are completely adsorbed by an ammonia water spray manner; at last, ammonium sulfate and ammonium chloride generated through the ammonia water spray manner are prepared into a solid chemical fertilizer. The whole process is short and simple; the mercury removal effect is good.
Description
Technical field
The present invention relates to a kind of useless flue gas ash removal demercuration and desulfurization treating apparatus.
Background technology
China is that a few take one of country that coal is main energy sources in the world, coal accounts for the ratio of China's primary energy production and consumption always more than 70%, burnt gas has formed huge environmental pollution as the discharge of sulfur dioxide, nitrogen oxide, fundamentally administers the pollution that the discharge of sulfur dioxide and nitrogen oxide causes imperative.
Owing to can inevitably produce a large amount of flue gases and flying dust in industrial production, in flue gas, also contain a large amount of fine particles dust, these dust directly discharge meeting cause severe contamination to environment, to ecological environment, cause destruction in various degree, bring harm to people's Health and Living.Countries in the world environmental protection organization constantly strengthens the improvement of protection, especially atmosphere pollution to environment, industrial gas emission is enforced to control techniques, so some gas cleaning cleaners arise at the historic moment; In quite a while in the past, electric cleaner has been played the part of very important role therein; Yet along with improving constantly that people require living environment, environmental protection organization is also corresponding has both at home and abroad put into effect new discharge standard, and the control of pollution sources has been had to higher requirement.
In addition, mercury is a kind of poisonous heavy metal element in coal, has the feature such as deposition and sluggish growth in hypertoxicity, high volatile volatile, organism.Coal time can give off mercury in burning, and in China's coal, the average content of mercury is 0.22/kg, is in world wide in coal 1.69 times of average mercury content.The coal-fired environmental pollution situation causing allows of no optimist, and its emission control be can not be ignored.Different from other trace element: mercury has strong volatility, so it is in combustion process, more than 85% mercury volatilization enters gas phase, and the mercury of 4%-15% remains in bottom ash.Physics, the chemical property of the mercury of different shape differ greatly, so the technology that removes of conventional needle liquid towards mercury can not effectively be removed the gas phase mercury in flue gas.
Summary of the invention
The technical problem to be solved in the present invention is: propose a kind ofly can before flue gas discharges, to flue gas, carry out a kind of flue gas ash removal demercuration desulphurization system of dedusting demercuration.
The present invention is that the technical scheme that solves the problems of the technologies described above proposition is: a kind of flue gas ash removal demercuration desulphurization system, mainly by the flue gas temperature-controlled tube being connected successively, flue gas oxidizing tower, fume dust remover, mercury adsorption chamber and ammonia spray pipe, formed, described flue gas temperature-controlled tube mainly by lead smoke pipe and be located at described in the radiating fin of leading on smoke pipe outer wall form; Described flue gas oxidizing tower is mainly to consist of flue gas oxidizing tower tower body and the chlorine nozzle that is located at described flue gas oxidizing tower tower body inside; In described mercury adsorption chamber, be provided with and carry bromine activated carbon block, described mercury adsorption chamber is provided with exhanst gas outlet for the flue gas after demercuration is discharged in ammonia spray pipe; Described ammonia spray pipe is spiral element; and at inwall top, be interval with a plurality of ammonia water spray mouths; the inwall bottom interval of described spiral element offers plasma discharge mouth; the below of described plasma discharge mouth is provided with feeder; the floss hole place of described feeder is provided with high-temperature oscillation comminutor; from described feeder floss hole, be connected with the charging aperture of described high-temperature oscillation comminutor, the end of described ammonia spray pipe is provided with exhaust opening, and described exhaust opening place is provided with for flue gas is carried out to dry hot-air drying unit.
Further, described fume dust remover is mainly by smoke-intake pipe road, controller, be arranged on the elementary control of dust filter screen in described smoke-intake pipe road, smoke pipeline, described in being connected to, enter, electrostatic precipitation case between smoke pipeline, digital altimeter, asepwirator pump and rotor type gas flowmeter form, described elementary control of dust screen cover is located at the porch in described smoke-intake pipe road, described asepwirator pump is arranged on described smoke pipeline exit, described digital altimeter and rotor type gas flowmeter are installed in described smoke pipeline and signal outputs to described controller, described smoke pipeline is connected to described mercury adsorption chamber.
Further, described fume dust remover also comprises the dust particle concentration monitor that is located at the smoke-intake pipe road that is positioned at described elementary control of dust filter screen top, the signal output part of described dust particle concentration monitor is connected to the signal input part of described controller, described dust particle concentration monitor is mainly to consist of main control chip and the generating laser, the light sensor that are oppositely arranged, and described light sensor is exported to described main control chip by the strength signal of Ear Mucosa Treated by He Ne Laser Irradiation; Described electrostatic precipitation case is at least two, the described electrostatic precipitation case that is at least two all has controlled end and is serially connected by pipeline, the controlled end of described electrostatic precipitation case is connected to the control end of described controller, and described smoke pipeline is connected to the exit of the electrostatic precipitation case that is positioned at least significant end.
The invention has the beneficial effects as follows:
A kind of flue gas ash removal demercuration desulphurization system provided by the invention, first by mode multiple times of filtration and the sedimentation effectively of physical filtering and Electrostatic Absorption, isolated thick in high-temperature flue gas, particle dust, tentatively remove oarse-grained mercury in flue gas, the load that is conducive to ensuing flue gas demercuration equipment, digitized checkout equipment is also provided, can export to master control set to reach the object of automatic control by these digital detection signals, if the work number of controlling electrostatic precipitation case by controller by dust particle concentration monitor monitors again to the dust particle concentration in flue gas is in the present invention to reach the object of Based Intelligent Control.
When demercuration, first logical temperature-controlled tube is controlled at 140 degrees Celsius of left and right by the temperature of flue gas, by spraying chlorine, flue gas is oxidized and generates gas phase mercury ion again, then by carrying bromine active carbon, gas phase mercury is adsorbed, and by the mode of spray ammoniacal liquor, residual mercury and sulfur compounds adsorption is complete, finally the ammonium sulfate producing through ammonia spray, ammonium chloride are made to solid-state chemical fertilizer, whole flow process is brief, and demercuration is effective.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, a kind of flue gas ash removal demercuration desulphurization system of the present invention is described further.
Fig. 1 is the structural representation of the flue gas ash removal demercuration desulphurization system in the present invention.
Fig. 2 is the structural representation of fume dust remover.
The specific embodiment
Embodiment
As depicted in figs. 1 and 2, the flue gas ash removal demercuration desulphurization system in the present invention, mainly consists of the flue gas temperature-controlled tube 101 being connected successively, flue gas oxidizing tower 102, fume dust remover 103, mercury adsorption chamber 104 and ammonia spray pipe 105.
Flue gas temperature-controlled tube 101 mainly forms by leading smoke pipe and being located at the radiating fin of leading on smoke pipe outer wall.
Flue gas oxidizing tower 102 is mainly to consist of flue gas oxidizing tower tower body and the chlorine nozzle that is located at flue gas oxidizing tower tower body inside.
In mercury adsorption chamber 104, be provided with and carry bromine activated carbon block, mercury adsorption chamber 104 is provided with exhanst gas outlet for the flue gas after demercuration is discharged in ammonia spray pipe 105.
The above-described embodiment that is not limited to of the present invention, all employings are equal to replaces the technical scheme forming, and all drops in the protection domain of requirement of the present invention.
Claims (3)
1. a flue gas ash removal demercuration desulphurization system, it is characterized in that: mainly by the flue gas temperature-controlled tube being connected successively, flue gas oxidizing tower, fume dust remover, mercury adsorption chamber and ammonia spray pipe, formed, described flue gas temperature-controlled tube mainly by lead smoke pipe and be located at described in the radiating fin of leading on smoke pipe outer wall form; Described flue gas oxidizing tower is mainly to consist of flue gas oxidizing tower tower body and the chlorine nozzle that is located at described flue gas oxidizing tower tower body inside; In described mercury adsorption chamber, be provided with and carry bromine activated carbon block, described mercury adsorption chamber is provided with exhanst gas outlet for the flue gas after demercuration is discharged in ammonia spray pipe; Described ammonia spray pipe is spiral element; and at inwall top, be interval with a plurality of ammonia water spray mouths; the inwall bottom interval of described spiral element offers plasma discharge mouth; the below of described plasma discharge mouth is provided with feeder; the floss hole place of described feeder is provided with high-temperature oscillation comminutor; from described feeder floss hole, be connected with the charging aperture of described high-temperature oscillation comminutor, the end of described ammonia spray pipe is provided with exhaust opening, and described exhaust opening place is provided with for flue gas is carried out to dry hot-air drying unit.
2. flue gas ash removal demercuration desulphurization system according to claim 1, it is characterized in that: described fume dust remover is mainly by smoke-intake pipe road, controller, be arranged on the elementary control of dust filter screen in described smoke-intake pipe road, smoke pipeline, described in being connected to, enter, electrostatic precipitation case between smoke pipeline, digital altimeter, asepwirator pump and rotor type gas flowmeter form, described elementary control of dust screen cover is located at the porch in described smoke-intake pipe road, described asepwirator pump is arranged on described smoke pipeline exit, described digital altimeter and rotor type gas flowmeter are installed in described smoke pipeline and signal outputs to described controller, described smoke pipeline is connected to described mercury adsorption chamber.
3. flue gas ash removal demercuration desulphurization system according to claim 2, it is characterized in that: described fume dust remover also comprises the dust particle concentration monitor that is located at the smoke-intake pipe road that is positioned at described elementary control of dust filter screen top, the signal output part of described dust particle concentration monitor is connected to the signal input part of described controller, described dust particle concentration monitor is mainly to consist of main control chip and the generating laser, the light sensor that are oppositely arranged, and described light sensor is exported to described main control chip by the strength signal of Ear Mucosa Treated by He Ne Laser Irradiation; Described electrostatic precipitation case is at least two, the described electrostatic precipitation case that is at least two all has controlled end and is serially connected by pipeline, the controlled end of described electrostatic precipitation case is connected to the control end of described controller, and described smoke pipeline is connected to the exit of the electrostatic precipitation case that is positioned at least significant end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310631989.1A CN103657366A (en) | 2013-11-26 | 2013-11-26 | Flue gas dust-removal mercury-removal desulfurizing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310631989.1A CN103657366A (en) | 2013-11-26 | 2013-11-26 | Flue gas dust-removal mercury-removal desulfurizing system |
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| Publication Number | Publication Date |
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| CN103657366A true CN103657366A (en) | 2014-03-26 |
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| CN201310631989.1A Pending CN103657366A (en) | 2013-11-26 | 2013-11-26 | Flue gas dust-removal mercury-removal desulfurizing system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104888585A (en) * | 2015-06-17 | 2015-09-09 | 苏州斯洛莱自动化设备有限公司 | Efficient waste gas spray device |
| CN107261811A (en) * | 2017-07-18 | 2017-10-20 | 成都赋阳技术开发有限公司 | A kind of filtering separation device for being used to handle mercurous industrial waste gas |
| CN108671749A (en) * | 2018-05-28 | 2018-10-19 | 上海电力学院 | Flue gas cloth-sack-type dust removal demercuration integrated apparatus |
| CN110841448A (en) * | 2019-11-22 | 2020-02-28 | 广东佳德环保科技有限公司 | Flue gas combined desulfurization and demercuration system and method |
| CN111265989A (en) * | 2020-03-25 | 2020-06-12 | 广东佳德环保科技有限公司 | A device and method for removing flue gas pollutants |
-
2013
- 2013-11-26 CN CN201310631989.1A patent/CN103657366A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104888585A (en) * | 2015-06-17 | 2015-09-09 | 苏州斯洛莱自动化设备有限公司 | Efficient waste gas spray device |
| CN107261811A (en) * | 2017-07-18 | 2017-10-20 | 成都赋阳技术开发有限公司 | A kind of filtering separation device for being used to handle mercurous industrial waste gas |
| CN107261811B (en) * | 2017-07-18 | 2021-02-05 | 叶俊歆 | A filtration separator for handling contain mercury industrial waste gas |
| CN108671749A (en) * | 2018-05-28 | 2018-10-19 | 上海电力学院 | Flue gas cloth-sack-type dust removal demercuration integrated apparatus |
| CN110841448A (en) * | 2019-11-22 | 2020-02-28 | 广东佳德环保科技有限公司 | Flue gas combined desulfurization and demercuration system and method |
| CN111265989A (en) * | 2020-03-25 | 2020-06-12 | 广东佳德环保科技有限公司 | A device and method for removing flue gas pollutants |
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Application publication date: 20140326 |