CN203886378U - System for carrying out cooperative mercury removal, sulfur removal and PM 2.5 removal on exhaust gas by wet process - Google Patents
System for carrying out cooperative mercury removal, sulfur removal and PM 2.5 removal on exhaust gas by wet process Download PDFInfo
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- CN203886378U CN203886378U CN201420326127.8U CN201420326127U CN203886378U CN 203886378 U CN203886378 U CN 203886378U CN 201420326127 U CN201420326127 U CN 201420326127U CN 203886378 U CN203886378 U CN 203886378U
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- Prior art keywords
- demercuration
- wet
- flue gas
- tower
- removal
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- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 title abstract description 22
- 229910052753 mercury Inorganic materials 0.000 title abstract description 21
- 238000000034 method Methods 0.000 title abstract description 12
- 230000008569 process Effects 0.000 title abstract description 7
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title abstract 4
- 229910052717 sulfur Inorganic materials 0.000 title abstract 4
- 239000011593 sulfur Substances 0.000 title abstract 4
- 230000001590 oxidative effect Effects 0.000 claims abstract description 40
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 36
- 239000000428 dust Substances 0.000 claims abstract description 25
- 239000002699 waste material Substances 0.000 claims abstract description 21
- 238000010521 absorption reaction Methods 0.000 claims abstract description 20
- 239000007800 oxidant agent Substances 0.000 claims abstract description 9
- 238000002360 preparation method Methods 0.000 claims abstract description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 73
- 239000003546 flue gas Substances 0.000 claims description 72
- 239000007789 gas Substances 0.000 claims description 52
- 238000006477 desulfuration reaction Methods 0.000 claims description 44
- 239000007788 liquid Substances 0.000 claims description 35
- 230000003647 oxidation Effects 0.000 claims description 34
- 230000023556 desulfurization Effects 0.000 claims description 32
- 238000013459 approach Methods 0.000 claims description 26
- 239000012716 precipitator Substances 0.000 claims description 22
- 239000002002 slurry Substances 0.000 claims description 22
- 238000004062 sedimentation Methods 0.000 claims description 15
- 238000005507 spraying Methods 0.000 claims description 13
- 239000000126 substance Substances 0.000 claims description 9
- 230000008676 import Effects 0.000 claims description 8
- 230000005587 bubbling Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 6
- 239000010419 fine particle Substances 0.000 abstract description 3
- 239000006227 byproduct Substances 0.000 abstract 2
- 238000005516 engineering process Methods 0.000 description 8
- 239000003344 environmental pollutant Substances 0.000 description 8
- 231100000719 pollutant Toxicity 0.000 description 8
- 239000003245 coal Substances 0.000 description 4
- 229910001385 heavy metal Inorganic materials 0.000 description 4
- 238000001556 precipitation Methods 0.000 description 4
- 239000000779 smoke Substances 0.000 description 4
- 239000003463 adsorbent Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000001376 precipitating effect Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002802 bituminous coal Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005367 electrostatic precipitation Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000003077 lignite Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
The utility model discloses a system for carrying out cooperative mercury removal, sulfur removal and PM 2.5 removal on exhaust gas by a wet process. The system comprises a bag type dust collector, a wet-process sulfur removal absorption tower, an oxidization tower, a wet-type electric dust collector, an oxidant preparation device and an oxidization and mercury removal byproduct integrating structure which comprises a waste liquor tank, a settling tank and a solid-liquor separator. The system disclosed by the utility model realizes effective and cooperative mercury removal, sulfur removal and fine particle removal, effectively recycles byproducts, avoids secondary pollution and improves comprehensive governance effect of the exhaust gas.
Description
Technical field
The utility model relates to the technical field of flue gas managing technique, relates in particular to the system of the de-PM2.5 of a kind of wet flue gas demercuration coordinated desulfurization.
Background technology
Although economic development and growth in the living standard that industrialized fast development has been advanced by leaps and bounds for the mankind have brought, also caused the generation of various problem of environmental pollutions.Wherein, atmosphere pollution is one of the most serious environmental problem of facing of 21 century human society survival and development.
China's Coal-fired capacity and mercury emission all occupy first place in the world, and Mercury Emissions from Coal-Fired Boilers has become the first people for mercury pollution source, due to volatility, persistence, serious harm and the global pollution of mercury, in coal-fired flue-gas, receive much concern taking mercury as main heavy metal pollution control.At present, the Chinese government pays much attention to coal-burning power plant's atmosphere polluting problem, and " fossil-fuel power plant atmospheric pollutant emission standard " implemented in January, 2012 requires: from 1 day January in 2015, coal-burning boiler mercury and mercuric compounds pollutant emission limit was 0.03mg/m
3.
Current coal-fired flue gas mercury removal technology is mainly divided into demercuration and the rear flue gas demercuration of burning in the front demercuration of burning, burning, wherein after burning, flue gas demercuration is to utilize flue-gas cleaning devices to realize the technology that mercury in flue gas removes, and is that the use of current coal-burning power plant is the most also topmost mercury pollution control device.
In the flue gas of coal combustion, mercury have 3 kinds of grown form: element state Hg
0, oxidation state Hg
2+with particle mercury Hg (p).Coal is to affect the major reason that Mercury In Coal Combustion Flue Gas form distributes, for example, and the Hg that bituminous coal combustion produces
0compare Hg
2+many, and the Hg that brown coal burning produces
2+compare Hg
0many.Hg (p) and Hg
2+can remove by conventional pollutant control appliance, due to Elemental Mercury Hg
0high volatile volatile and the slightly solubility in water, existing flue gas purifying equipment be difficult to by its removal.Therefore, the key of coal-fired flue gas mercury removal is exactly Hg
0remove.Can effectively process at present Hg
0method have following several: the one, adopt adsorbent adsorbing and removing, the 2nd, utilize existing pollutant control appliance to work in coordination with demercuration, the 3rd, first by Hg
0be oxidized to Hg
2+removed again.Adopt adsorbent such as charcoal absorption removes Hg
0the current cost of technology is higher, and need carry out desorption and regeneration processing, complex process to adsorbent.And only utilize the collaborative demercuration of existing equipment cannot reach national discharge standard.
The source of atmospheric pollution is except heavy metal Hg, and the sulfur dioxide that coal burning is discharged has also caused multiple harm, and it is the main precursor of acid rain and fine particle.In addition, the baneful influence of haze also increasingly sharpens in recent years, and the pollutant that causes this phenomenon is PM2.5 fine particle.At present, PM2.5 pollutes another key problem that day by day becomes China's atmosphere pollution.
Many in atmosphere pollution species, endanger under large severe situation, the novel process system of multiple pollutant cooperation-removal becomes domestic and international technical specialists' study hotspot gradually.But China is at present for the mercury in coal-fired flue-gas, SO
2with common technical system or the rarely seen report of equipment of administering of PM2.5 subparticle.
Utility model content
In view of the deficiency of above-mentioned prior art existence, the utility model proposes the system of the de-PM2.5 of a kind of wet flue gas demercuration coordinated desulfurization, can be in the heavy metal Hg efficiently removing in coal-fired flue-gas coordinated desulfurization and remove flue gas in the PM2.5 subparticle that carries, reach the low emission requirement of pollutant; The accessory substance of oxidation demercuration effectively can be reclaimed again, avoid secondary pollution, improve smoke comprehensive regulation effect.
The technical scheme that the utility model provides is as follows:
A system of the de-PM2.5 of wet flue gas demercuration coordinated desulfurization, comprising:
For the pretreated sack cleaner of flue gas;
For the wet desulphurization absorption tower of flue gas desulfurization and first order demercuration;
For the oxidizing tower of flue gas second level oxidation demercuration;
The wet electrical dust precipitator purifying again for flue gas;
The exhanst gas outlet of described sack cleaner is connected with the gas approach of described wet desulphurization absorption tower, the exhanst gas outlet of described wet desulphurization absorption tower is connected with the gas approach of described oxidizing tower, the exhanst gas outlet of described oxidizing tower is connected with the gas approach of described wet electrical dust precipitator, and the exhanst gas outlet of described wet electrical dust precipitator is communicated with described chimney.
Further preferably, the system of the de-PM2.5 of described wet flue gas demercuration coordinated desulfurization also comprises:
Oxidant preparation facilities, its taphole is connected with the solution inlet port of described oxidizing tower.
Further preferably, the system of the de-PM2.5 of described wet flue gas demercuration coordinated desulfurization also comprises:
Oxidation demercuration accessory substance is prepared integrated morphology, and it comprises waste liquid pool, sedimentation basin and solid-liquid separator;
The import of described waste liquid pool is connected with the taphole of described oxidizing tower, and the outlet of described waste liquid pool is connected with the import of described sedimentation basin, and the outlet of described sedimentation basin is connected with described solid-liquid separator.
Further preferably, described oxidizing tower is tower bubbling reactor;
Further preferably, described solid-liquid separator is centrifugal cyclone hydraulic separators.
Further preferably, the system of the de-PM2.5 of described wet flue gas demercuration coordinated desulfurization also comprises:
Spray-type humidifier, before it is located at the gas approach of described wet electrical dust precipitator, the entrance of described spray-type humidifier is connected with the exhanst gas outlet of described oxidizing tower, and the outlet of described spray-type humidifier is connected with the gas approach of described wet electrical dust precipitator;
The inside of described spray-type humidifier is provided with atomizer.
Further preferably, described wet desulphurization absorption tower comprises oxidation pond at the bottom of tower, gas approach, desulfuration demercuration slurries spraying layer, mechanical demister and exhanst gas outlet from bottom to up successively;
Wherein, at the bottom of described tower, oxidation pond is connected with described desulfuration demercuration slurries spraying layer by slurry circulating pump.
System and the removing process of the de-PM2.5 of a kind of wet flue gas demercuration providing by the utility model coordinated desulfurization, can bring following at least one beneficial effect:
1, can be in the heavy metal Hg efficiently removing in coal-fired flue-gas coordinated desulfurization and remove flue gas in the PM2.5 subparticle that carries etc., reach the low emission requirement of pollutant.The utility model can be to the element state Hg in flue gas by the use of first order demercuration and second level oxidation demercuration
0, oxidation state Hg
2+thoroughly remove with particle mercury Hg (p), particularly in the second level oxidation demercuration stage, can be by the more difficult element state Hg removing
0become the Hg of oxidation state by oxidation
2+, then remove.Meanwhile, wet desulphurization absorption tower of the present utility model also can remove the oxysulfide in flue gas, and the wet electrical dust precipitator of technique end can remove Hg remaining in flue gas in high voltage electric field
2+, PM2.5 subparticle and acid mist etc., make clean flue gas meet the discharge standard of national regulation.
2, the accessory substance of oxidation demercuration effectively can be reclaimed, avoid secondary pollution, improve smoke comprehensive regulation effect.The utility model is in demercuration the de-PM2.5 of coordinated desulfurization, also can prepare integrated morphology by oxidation demercuration accessory substance recycles the accessory substance of oxidation demercuration, be included in the waste liquid of collecting oxidizing tower in waste liquid pool and carry out acid-base neutralization simultaneously, then make the Hg in waste liquid by adding precipitating reagent in sedimentation basin
2+reaction generates stable precipitation, and by solid-liquid separator, precipitation is separated to recovery, effectively avoids secondary pollution, improves smoke comprehensive regulation effect.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
Fig. 1 is the structural representation of a kind of embodiment of the system of the utility model wet flue gas demercuration the de-PM2.5 of coordinated desulfurization.
Drawing reference numeral explanation:
1-coal-burning installation; 2-sack cleaner; 3-wet desulphurization absorption tower; Oxidation pond at the bottom of 31-tower; 32-gas approach; 33-desulfuration demercuration slurries spraying layer; 34-machinery demister; 35-exhanst gas outlet; 36-slurry circulating pump; 4-oxidizing tower; 5-spray-type humidifier; 6-wet electrical dust precipitator; 7-chimney; 8-oxidant preparation facilities; 9-waste liquid pool; 10-sedimentation basin; 11-solid-liquid separator.
Detailed description of the invention
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
In an embodiment of the present utility model, the system of the de-PM2.5 of wet flue gas demercuration coordinated desulfurization has comprised (1) sack cleaner 2, and it,, for flue gas is carried out to pretreatment, removes the bulky grain in flue gas; (2) wet desulphurization absorption tower 3, it,, for the collaborative first order demercuration of flue gas desulfurization, is mainly sprayed and is removed by sprayed slurry; (3) oxidizing tower 4, it carries out oxidation demercuration in the second level for the oxidation by oxidant to flue gas; (4) wet electrical dust precipitator 6, for flue gas is purified again, by removing Hg remaining in flue gas in high voltage electric field
2+, PM2.5 subparticle and acid mist etc., make the flue gas of discharge up to standard.
Said structure is in the time of construction system, be communicated with successively, particularly, the exhanst gas outlet of sack cleaner 2 is connected with the gas approach of wet desulphurization absorption tower 3, the exhanst gas outlet of wet desulphurization absorption tower 3 is connected with the gas approach of oxidizing tower 4, the exhanst gas outlet of oxidizing tower 4 is connected with the gas approach of wet electrical dust precipitator 6, and the exhanst gas outlet of wet electrical dust precipitator 6 is communicated with described chimney 7.Can carry out successively bulky grain to flue gas like this and remove pretreatment, the collaborative first order demercuration of desulfurization, second level oxidation demercuration, flue gas purified treatment again, realize the de-PM2.5 of the demercuration coordinated desulfurization of flue gas, make flue gas reach the discharge standard of national regulation.
Preferably, with reference to Fig. 1, wet desulphurization absorption tower of the present utility model comprises oxidation pond 31 at the bottom of tower, gas approach 32, desulfuration demercuration slurries spraying layer 33, mechanical demister 34 and exhanst gas outlet 35 from bottom to up successively; Wherein, at the bottom of tower, oxidation pond 31 is connected with desulfuration demercuration slurries spraying layer 33 by slurry circulating pump 36.Gas approach is connected with the exhanst gas outlet of coal-burning installation 1, and flue gas is imported in wet desulphurization absorption tower 3.Desulfuration demercuration slurries spraying layer 33 is for spraying the SO that can absorb flue gas
2, Hg
2+in the slurries of composition; And desulfuration demercuration slurries spraying layer 33 can be connected with oxidation pond at the bottom of tower 31 by slurry circulating pump 36, at the bottom of tower, the desulfurization slurry of oxidation pond 31 is imported in spraying layer flue gas is sprayed by slurry circulating pump 36, and spray liquid can fall after rise again to oxidation pond 31 at the bottom of tower in the process of spray.Machinery demister 34 is for the slurries that remove flue gas and carry, moisture, sulfuric acid, sulfate etc.Exhanst gas outlet is connected with the gas approach of oxidizing tower 4, and the flue gas after collaborative desulfurization first order demercuration is imported in oxidizing tower 4.
Preferably, the oxidizing tower 4 in the utility model is tower bubbling reactor.
Preferably, system of the present utility model also can further comprise oxidant preparation facilities 8, and its taphole is connected with the solution inlet port of described oxidizing tower 4, to import and to be used for element state Hg in oxidizing tower 4
0be oxidized to Hg
2+oxidant.Can make like this native system more complete, independent.
Preferably, system of the present utility model also can further comprise that being oxidized demercuration accessory substance prepares integrated morphology, and it comprises waste liquid pool 9, sedimentation basin 10 and solid-liquid separator 11; The import of described waste liquid pool 9 is connected with the taphole of described oxidizing tower 4, the waste liquid of discharging for collecting and store oxidizing tower; The outlet of described waste liquid pool 9 is connected with the import of described sedimentation basin 10, for the waste liquid of waste liquid pool 9 is imported in sedimentation basin 10, and by precipitating reagent by Hg
2+be converted into stable precipitation; The outlet of described sedimentation basin 10 is connected with described solid-liquid separator 11, for by precipitate and separate out, and precipitation is reclaimed, and effectively avoids secondary mercury pollution.More preferably, solid-liquid separator 11 is centrifugal cyclone hydraulic separators, is the one of cyclone separator, and in order to separate taking liquid as main suspension or the equipment of emulsion, separating effect is better.
Preferably, system of the present utility model also can further comprise spray-type humidifier 5, before it is located at the gas approach of described wet electrical dust precipitator 6, the entrance of described spray-type humidifier 5 is connected with the exhanst gas outlet of described oxidizing tower 4, and the outlet of described spray-type humidifier 5 is connected with the gas approach of described wet electrical dust precipitator 6; The inside of described spray-type humidifier 5 is provided with atomizer.Spray-type humidifier 5 can be used for the flue gas humidification to entering wet electrical dust precipitator 6, to promote the effective collision between aerosol in flue gas, improves the efficiency of dust collection of wet electrical dust precipitator 6.Should be understood to, other humidifying devices that can realize humidification effect also can be used on herein, and also should belong to protection domain of the present utility model.
In a full implementation example of the present utility model, with reference to Fig. 1, the system of the de-PM2.5 of a kind of wet flue gas demercuration that the present embodiment proposes coordinated desulfurization, comprising:
For the pretreated sack cleaner 2 of flue gas, for the wet desulphurization absorption tower 3 of flue gas desulfurization and first order demercuration, for the oxidizing tower 4 of flue gas second level oxidation demercuration, inside is provided with the spray-type humidifier 5 of atomizer, the wet electrical dust precipitator 6 purifying again for flue gas, for the oxidant preparation facilities 8 of secondary oxidation demercuration, and oxidation demercuration accessory substance prepares integrated morphology, and it comprises waste liquid pool 9, sedimentation basin 10 and solid-liquid separator 11.Particularly, solid-liquid separator 11 is centrifugal cyclone hydraulic separators.Particularly, oxidizing tower 4 is tower bubbling reactor.
Wherein, said structure is in the time of concrete connection, the gas approach of sack cleaner 2 is connected with the outlet of coal-burning installation 1, the exhanst gas outlet of sack cleaner 2 is connected with the gas approach of wet desulphurization absorption tower 3, the exhanst gas outlet of desulfuration absorbing tower 3 is connected with the gas approach of oxidizing tower 4, the exhanst gas outlet of oxidizing tower 4 is connected with the entrance of spray-type humidifier 5, the outlet of spray-type humidifier 5 is connected with the gas approach of wet electrical dust precipitator 6, and the clean exhanst gas outlet of wet electrical dust precipitator 6 is communicated with chimney 7.The solution inlet port of oxidizing tower 4 is connected with the taphole of oxidant preparation facilities 8, and the taphole of oxidizing tower 4 is connected with the import of waste liquid pool 9, and the outlet of waste liquid pool 9 is connected with sedimentation basin 10, and sedimentation basin 10 is connected with solid-liquid separator 11.
Wherein, wet desulphurization absorption tower 3 comprises oxidation pond 31 at the bottom of tower, gas approach 32, desulfuration demercuration slurries spraying layer 33, mechanical demister 34 and exhanst gas outlet 35 from bottom to up successively.At the bottom of tower, oxidation pond 31 is connected with desulfuration demercuration slurries spraying layer 33 by slurry circulating pump 36.
Adopt the flue gas managing technique of the de-PM2.5 of wet flue gas demercuration of the present utility model coordinated desulfurization, can be on the basis of existing Wet Flue Gas Desulfurization Technology, with wet electrostatic precipitation technology and the effective combination of oxidation demercuration technology, thoroughly contain by two-stage hydrargyrum-removing technology the mercury pollution that coal-fired flue-gas produces, and can reclaim oxidation demercuration accessory substance, realize " turning waste into wealth ", and can coordinated desulfurization and remove subparticle, improve smoke comprehensive governance efficiency, realized flue gas minimum discharge requirement.
It should be noted that all independent assortments as required of above-described embodiment.The above is only preferred embodiment of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (7)
1. a system of the de-PM2.5 of wet flue gas demercuration coordinated desulfurization, is characterized in that, comprising:
For the pretreated sack cleaner of flue gas;
For the wet desulphurization absorption tower of flue gas desulfurization and first order demercuration;
For the oxidizing tower of flue gas second level oxidation demercuration;
The wet electrical dust precipitator purifying again for flue gas;
The exhanst gas outlet of described sack cleaner is connected with the gas approach of described wet desulphurization absorption tower, the exhanst gas outlet of described wet desulphurization absorption tower is connected with the gas approach of described oxidizing tower, the exhanst gas outlet of described oxidizing tower is connected with the gas approach of described wet electrical dust precipitator, and the exhanst gas outlet of described wet electrical dust precipitator is communicated with described chimney.
2. the system of the de-PM2.5 of wet flue gas demercuration according to claim 1 coordinated desulfurization, is characterized in that, further comprises:
Oxidant preparation facilities, its taphole is connected with the solution inlet port of described oxidizing tower.
3. the system of the de-PM2.5 of wet flue gas demercuration according to claim 1 coordinated desulfurization, is characterized in that, further comprises:
Oxidation demercuration accessory substance is prepared integrated morphology, and it comprises waste liquid pool, sedimentation basin and solid-liquid separator;
The import of described waste liquid pool is connected with the taphole of described oxidizing tower, and the outlet of described waste liquid pool is connected with the import of described sedimentation basin, and the outlet of described sedimentation basin is connected with described solid-liquid separator.
4. the system of the de-PM2.5 of wet flue gas demercuration according to claim 3 coordinated desulfurization, is characterized in that, described solid-liquid separator is centrifugal cyclone hydraulic separators.
5. the system of the de-PM2.5 of wet flue gas demercuration according to claim 1 coordinated desulfurization, is characterized in that, further comprises:
Spray-type humidifier, before it is located at the gas approach of described wet electrical dust precipitator, the entrance of described spray-type humidifier is connected with the exhanst gas outlet of described oxidizing tower, and the outlet of described spray-type humidifier is connected with the gas approach of described wet electrical dust precipitator;
The inside of described spray-type humidifier is provided with atomizer.
6. according to the system of the wet flue gas demercuration described in claim 1-5 any one the de-PM2.5 of coordinated desulfurization, it is characterized in that,
Described wet desulphurization absorption tower comprises oxidation pond at the bottom of tower, gas approach, desulfuration demercuration slurries spraying layer, mechanical demister and exhanst gas outlet from bottom to up successively;
Wherein, at the bottom of described tower, oxidation pond is connected with described desulfuration demercuration slurries spraying layer by slurry circulating pump.
7. according to the system of the wet flue gas demercuration described in claim 1-5 any one the de-PM2.5 of coordinated desulfurization, it is characterized in that,
Described oxidizing tower is tower bubbling reactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420326127.8U CN203886378U (en) | 2014-06-18 | 2014-06-18 | System for carrying out cooperative mercury removal, sulfur removal and PM 2.5 removal on exhaust gas by wet process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420326127.8U CN203886378U (en) | 2014-06-18 | 2014-06-18 | System for carrying out cooperative mercury removal, sulfur removal and PM 2.5 removal on exhaust gas by wet process |
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| Publication Number | Publication Date |
|---|---|
| CN203886378U true CN203886378U (en) | 2014-10-22 |
Family
ID=51712830
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420326127.8U Expired - Lifetime CN203886378U (en) | 2014-06-18 | 2014-06-18 | System for carrying out cooperative mercury removal, sulfur removal and PM 2.5 removal on exhaust gas by wet process |
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| CN (1) | CN203886378U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104014217A (en) * | 2014-06-18 | 2014-09-03 | 上海龙净环保科技工程有限公司 | System and process for removing PM2.5 through wet flue gas demercuration and cooperative desulfurization |
| CN105214465A (en) * | 2015-10-27 | 2016-01-06 | 李继凤 | The apparatus and method of integration wet process of FGD dedusting |
-
2014
- 2014-06-18 CN CN201420326127.8U patent/CN203886378U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104014217A (en) * | 2014-06-18 | 2014-09-03 | 上海龙净环保科技工程有限公司 | System and process for removing PM2.5 through wet flue gas demercuration and cooperative desulfurization |
| CN104014217B (en) * | 2014-06-18 | 2016-03-23 | 上海龙净环保科技工程有限公司 | A kind of wet flue gas demercuration coordinated desulfurization take off system and the technique of PM2.5 |
| CN105214465A (en) * | 2015-10-27 | 2016-01-06 | 李继凤 | The apparatus and method of integration wet process of FGD dedusting |
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