CN206881495U - Remove the device of sulfur dioxide in flue gas and mercury - Google Patents
Remove the device of sulfur dioxide in flue gas and mercury Download PDFInfo
- Publication number
- CN206881495U CN206881495U CN201720848079.2U CN201720848079U CN206881495U CN 206881495 U CN206881495 U CN 206881495U CN 201720848079 U CN201720848079 U CN 201720848079U CN 206881495 U CN206881495 U CN 206881495U
- Authority
- CN
- China
- Prior art keywords
- flue gas
- slurries
- sulfur dioxide
- lime stone
- calcium hypochlorite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 title claims abstract description 168
- 239000003546 flue gas Substances 0.000 title claims abstract description 136
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 135
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 title claims abstract description 63
- 229910052753 mercury Inorganic materials 0.000 title claims abstract description 62
- 239000002002 slurry Substances 0.000 claims abstract description 228
- 239000007788 liquid Substances 0.000 claims abstract description 27
- 239000000779 smoke Substances 0.000 claims abstract description 15
- 239000007789 gas Substances 0.000 claims abstract description 12
- 238000000926 separation method Methods 0.000 claims abstract description 9
- 235000019738 Limestone Nutrition 0.000 claims description 75
- 239000006028 limestone Substances 0.000 claims description 75
- ZKQDCIXGCQPQNV-UHFFFAOYSA-N Calcium hypochlorite Chemical compound [Ca+2].Cl[O-].Cl[O-] ZKQDCIXGCQPQNV-UHFFFAOYSA-N 0.000 claims description 74
- 239000007921 spray Substances 0.000 claims description 37
- 238000005507 spraying Methods 0.000 claims description 24
- 238000000889 atomisation Methods 0.000 claims description 17
- 230000003647 oxidation Effects 0.000 claims description 17
- 238000007254 oxidation reaction Methods 0.000 claims description 17
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 10
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 6
- 239000005864 Sulphur Substances 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 5
- 210000002966 serum Anatomy 0.000 claims description 5
- 241000790917 Dioxys <bee> Species 0.000 claims description 4
- GBAOBIBJACZTNA-UHFFFAOYSA-L calcium sulfite Chemical compound [Ca+2].[O-]S([O-])=O GBAOBIBJACZTNA-UHFFFAOYSA-L 0.000 claims description 4
- 235000010261 calcium sulphite Nutrition 0.000 claims description 4
- TXKMVPPZCYKFAC-UHFFFAOYSA-N disulfur monoxide Inorganic materials O=S=S TXKMVPPZCYKFAC-UHFFFAOYSA-N 0.000 claims description 4
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 claims description 4
- 238000005201 scrubbing Methods 0.000 claims description 2
- 239000003595 mist Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- 230000010354 integration Effects 0.000 abstract description 3
- 238000000746 purification Methods 0.000 abstract description 3
- 239000002440 industrial waste Substances 0.000 abstract description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 230000002411 adverse Effects 0.000 description 3
- 239000010440 gypsum Substances 0.000 description 3
- 229910052602 gypsum Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- QFYUAKPQIZIUPT-UHFFFAOYSA-N [Ca].ClO Chemical compound [Ca].ClO QFYUAKPQIZIUPT-UHFFFAOYSA-N 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- YALMXYPQBUJUME-UHFFFAOYSA-L calcium chlorate Chemical compound [Ca+2].[O-]Cl(=O)=O.[O-]Cl(=O)=O YALMXYPQBUJUME-UHFFFAOYSA-L 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000009688 liquid atomisation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- HNBFUFIYQWYCDM-UHFFFAOYSA-N oxygen(2-) sulfane titanium(4+) Chemical compound [O--].[O--].S.[Ti+4] HNBFUFIYQWYCDM-UHFFFAOYSA-N 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Abstract
Industrial waste gas and field of exhaust gas purification are the utility model is related to, discloses the device of removing sulfur dioxide in flue gas and mercury.Device includes main body and interior structure component, and the inner space of main body is divided into slurries area, sulfur dioxide removal area, sulfur dioxide and mercury deep removal area and flue gas and slurries Disengagement zone by the interior structure component from bottom to up；Sulfur dioxide removal area is used to the flue gas containing sulfur dioxide and mercury carrying out sulfur dioxide removal, obtains the first flue gas and the first slurries；Sulfur dioxide is used to the first flue gas carrying out sulfur dioxide and mercury deep removal with mercury deep removal area, obtains the second flue gas and the second slurries；Flue gas is used to the second flue gas carrying out gas-liquid separation with slurries Disengagement zone, is purified flue gas and the 3rd slurries, and purifying smoke is discharged at the top of flue gas and slurries Disengagement zone；Slurries area is used to store the first slurries, the second slurries and the 3rd slurries.The collaboration integration removing of sulfur dioxide and mercury is realized, removal effect is good, and apparatus cost is low, operating cost is low.
Description
Technical field
It the utility model is related to industrial waste gas and field of exhaust gas purification, and in particular to removing sulfur dioxide in flue gas and mercury
Device.
Background technology
Currently, the emission control of coal-fired flue-gas pollutant has obtained the attention of countries in the world, and existing coal-burning power plant of China is
All installation dedusting and desulfurizer, some new power plant constructions are also equipped with denitrification apparatus.Promulgate within 2011《Thermal power plant's atmosphere pollution
Thing discharge standard》Harsher requirement, while the discharge standard of heavy metal mercury are not only proposed to above-mentioned pollutant emission
Mention agenda.For the province, autonomous region and municipality directly under the Central Government except Guangxi, Chongqing, Sichuan and Guizhou, it is desirable to newly-built thermal power generation pot
Stove sulfur dioxide (SO2) emissions from 1 day January in 2012 are less than 100mg/m3, existing thermal power generation boiler is two from 1 day July in 2014
The discharge of sulfur oxide is less than 200mg/m3, discharge of the mercury and mercuric compounds from 1 day January in 2015 be less than 0.03mg/m3.Stone
Lime stone-gypsum is the ripe mainstream technology of current flue gas desulfurization, and it is removed in flue gas using lime stone as absorbent
Sulfur dioxide gas.Fall within the new demand of field of Environment Protection, denitrification apparatus in the world to the limitation of coal-fired plant flue gas mercury emissions
Can be bivalent mercury by the elemental mercury for being partly difficult to remove, bivalent mercury by flying dust adsorb or be dissolved in after water respectively by except
Dirt device and desulfurizer removing.But for the higher flue gas of mercurous concentration, it might not can reach emission request.
Current technology advanced in the world is the direct injection activated carbon in flue, has entered industrialization demonstration phase,
But the technology has three：(1) a large amount of consumption of activated carbon cause operating cost high, and (2) are mixed into the activity in flying dust
Charcoal seriously affects flying dust value, and (3) more crucially usual activated carbon is not good enough to nonvalent mercury removal effect.And carry in the recent period
The new technologies such as the modification flying dust demercuration gone out can't be applied in actual power plant's demercuration still in the experimental stage.In order to meet day
The requirement that the strict national environmental protection regulation of benefit is discharged to sulfur dioxide in coal-fired plant flue gas and heavy metal Hg, some power plant need
Increase corresponding mercury removal device, investment and operating cost will certainly be increased.
To sum up analyze, in existing device, although the sulfur dioxide in removing flue gas has certain effect, also
There is no a kind of device that sulfur dioxide in flue gas and mercury can be carried out cooperateing with integration to remove, existing removing means is often
It is to separate removing, the problem of apparatus cost is high, operating cost is high, removal effect is bad is present.
Utility model content
The purpose of this utility model is to overcome dress existing for the device of existing removing sulfur dioxide in flue gas and mercury
Put the defects of cost is high, operating cost is high, removal effect is bad, there is provided a kind of device for removing sulfur dioxide in flue gas and mercury,
The device can realize the collaboration integration removing to the sulfur dioxide in flue gas and mercury, and removal effect is good, and apparatus cost is low, fortune
Row is low with maintenance cost.
To achieve these goals, the utility model provides a kind of device for removing sulfur dioxide in flue gas and mercury, should
Device includes main body and interior structure component, and the inner space of main body is divided into slurries area, titanium dioxide by the interior structure component from bottom to up
Sulphur removing area, sulfur dioxide and mercury deep removal area and flue gas and slurries Disengagement zone；
Wherein, the sulfur dioxide removal area is used to the flue gas containing sulfur dioxide and mercury carrying out sulfur dioxide removal,
Obtain the first flue gas and the first slurries；The sulfur dioxide is used to first flue gas carrying out titanium dioxide with mercury deep removal area
Sulphur and mercury deep removal, obtain the second flue gas and the second slurries；The flue gas is used for second flue gas with slurries Disengagement zone
Gas-liquid separation is carried out, is purified flue gas and the 3rd slurries, the purifying smoke is discharged at the top of flue gas and slurries Disengagement zone；Institute
State slurries area be used for store the first slurries, the second slurries and the 3rd slurries.
Preferably, main body includes being arranged on the smoke inlet and serum outlet of the bottom of main body, and is arranged on main body
The exhanst gas outlet on top；The interior structure component is included in the flue gas distributor set gradually from bottom to up in main body, limestone slurry
Liquid atomization sprayer, lime stone slurry entrance, calcium hypochlorite slurry spraying spray thrower and calcium hypochlorite slurries entrance；Wherein, institute
State smoke inlet with flue gas distributor to be connected, for the flue gas containing sulfur dioxide and mercury to be passed through into sulfur dioxide removal area；
The lime stone slurry atomization sprayer is connected with lime stone slurry entrance, is taken off for lime stone slurry to be passed through into sulfur dioxide
Except area, it is in contact with the flue gas containing sulfur dioxide and mercury and carries out scrubbing CO_2；The calcium hypochlorite slurry spraying spray
Device is connected with calcium hypochlorite slurries entrance, for calcium hypochlorite slurries to be passed through into sulfur dioxide and mercury deep removal area, with institute
State the first flue gas and be in contact and carry out sulfur dioxide and mercury deep removal；
Wherein, between smoke inlet and flue gas distributor it is slurries area, flue gas distributor and lime stone slurry atomizing spray
It is sulfur dioxide removal area between device, is dioxy between lime stone slurry atomization sprayer and calcium hypochlorite slurry spraying spray thrower
Change sulphur and mercury deep removal area, be flue gas and slurries Disengagement zone between calcium hypochlorite slurry spraying spray thrower and exhanst gas outlet.
Preferably, flue gas and pulp separator are additionally provided with flue gas and slurries Disengagement zone, for the second flue gas to be entered into promoting the circulation of qi
Liquid separates.
Preferably, the lime stone slurry atomization sprayer includes multiple lime stone slurry annulars for being arranged concentrically and communicating
Delivery pipe and multiple lime stone slurry shower nozzles in lime stone slurry annular duct；The lime stone slurry shower nozzle
Spray is directed downward；Wherein, the lime stone slurry annular duct is used to convey lime stone slurry；The lime stone slurry spray
Head is used for the lime stone slurry for spraying the conveying of lime stone slurry annular duct.
Preferably, the ratio of the maximum outside diameter of the lime stone slurry annular duct and the internal diameter of main body is：(0.8-
0.95):1。
Preferably, the calcium hypochlorite slurry spraying spray thrower includes multiple calcium hypochlorite slurries for being arranged concentrically and communicating
Annular duct and multiple calcium hypochlorite slurries shower nozzles in calcium hypochlorite slurry liquid annular duct；The calcium hypochlorite
The spray of slurries shower nozzle is directed downward；Wherein, the calcium hypochlorite slurry liquid annular duct is used to convey calcium hypochlorite slurries；Institute
State the calcium hypochlorite slurries that calcium hypochlorite slurries shower nozzle is used to spray the conveying of calcium hypochlorite slurry liquid annular duct.
Preferably, the ratio of the maximum outside diameter of the calcium hypochlorite slurry liquid annular duct and the internal diameter of main body is：(0.8-
0.95):1。
Preferably, the flue gas distributor has multiple guiding air chambers and the outlet of multiple flue gas distributors；Wherein, each lead
One or more flue gas distributor outlets are installed to air chamber outer rim, the flue gas distributor export direction is down.
Preferably, described device also includes the oxidation air entrance installed in sulfur dioxide removal area, the oxidation air
Entrance is connected with oxidation fan, for air to be blasted into sulfur dioxide removal area, calcium sulfite is aoxidized to obtain calcium sulfate.
Preferably, the oxidation air entrance and the angle α of main body inner wall are 10 ° to 85 °.
According to device described in the utility model, by setting gradually slurries area, dioxy from bottom to up in apparatus main body
Change sulphur removing area, sulfur dioxide and mercury deep removal area and flue gas and sulfur dioxide in flue gas and mercury can be achieved in slurries Disengagement zone
Removing, apparatus structure is simple and convenient to operate, apparatus cost is low, the maintenance cost of device is low.
According to device described in the utility model, the lime stone slurry atomizing spray set from bottom to up in apparatus main body
Device and calcium hypochlorite slurry spraying spray thrower, flue gas enter apparatus main body from bottom part body, after being distributed by flue gas distributor certainly
Fully contacted with the lime stone slurry and calcium hypochlorite slurries of atomization successively on down, the deep removal by way of adverse current is collided
Sulfur dioxide and mercury in flue gas, removal effect is good, can reach discharging standards.
According to device described in the utility model, mercury is removed by using the calcium hypochlorite of atomization in device, it runs
Cost is far smaller than the cost of activated carbon, can effectively reduce operating cost.
According to device described in the utility model, in the process of running, oxidation fan by oxidation air entrance constantly
Air is blasted into sulfur dioxide removal room, calcium sulfite can be aoxidized to obtain calcium sulfate.Treat that slurries discharger is laggard
Row dewater treatment, water and the gypsum with economic benefit are can obtain, slurries production can be continued on for after handling water
In, realization recycles, and environmental protection and reduces operating cost；Selling gypsum can realize that resource maximally utilizes, and it is attached to increase its
It is value added.
Brief description of the drawings
Accompanying drawing be for provide it is of the present utility model further understand, an and part for constitution instruction, the tool with elder generation
Body embodiment is used to explain the utility model together, but does not form to limitation of the present utility model.In the accompanying drawings：
Fig. 1 is according to a kind of removing sulfur dioxide in flue gas of embodiment of the present utility model and the knot of mercury device
Structure schematic diagram；
Fig. 2 is the upward view of lime stone slurry atomization sprayer；
Fig. 3 is the upward view of calcium hypochlorite slurry spraying spray thrower；
Fig. 4 is the top view of flue gas distributor.
Description of reference numerals
I, slurries area II, sulfur dioxide removal area
III, sulfur dioxide and mercury deep removal area IV, flue gas and slurries Disengagement zone
1st, main body 2, smoke inlet
3rd, serum outlet 4, flue gas distributor
5th, lime stone slurry atomization sprayer 6, lime stone slurry entrance
7th, calcium hypochlorite slurry spraying spray thrower 8, calcium hypochlorite slurries entrance
9th, flue gas and pulp separator 10, exhanst gas outlet
14th, lime stone slurry shower nozzle 15, lime stone slurry annular duct
16th, calcium hypochlorite slurries shower nozzle 17, calcium hypochlorite slurry liquid annular duct
18th, flue gas distributor outlet 19, guiding air chamber
Embodiment
The end points of disclosed scope and any value are not limited to the accurate scope or value herein, these scopes or
Value should be understood to comprising the value close to these scopes or value.For number range, between the endpoint value of each scope, respectively
It can be combined with each other between the endpoint value of individual scope and single point value, and individually between point value and obtain one or more
New number range, these number ranges should be considered as specific open herein.
In the utility model, the device for removing sulfur dioxide in flue gas and mercury is the towers units of vertical placement, not
In the case of making opposite explanation, the noun of locality such as " upper and lower " used generally refers to top, the direction of bottom of tower respectively.
The utility model provides a kind of device for removing sulfur dioxide in flue gas and mercury, as shown in figure 1, the device includes
The inner space of main body 1 is divided into slurries area I, sulfur dioxide removal by main body 1 and interior structure component, the interior structure component from bottom to up
Area II, sulfur dioxide and mercury deep removal area III and flue gas and slurries Disengagement zone IV.
In the utility model, the sulfur dioxide removal area II is used to the flue gas containing sulfur dioxide and mercury carrying out two
Sulfur oxide removes, and obtains the first flue gas and the first slurries.
In the utility model, the sulfur dioxide is used to first flue gas carrying out two with mercury deep removal area III
Sulfur oxide and mercury deep removal, obtain the second flue gas and the second slurries.
In the utility model, due to being entrained with a small amount of slurries, the flue gas and slurries Disengagement zone in second flue gas
IV is used to second flue gas carrying out gas-liquid separation, is purified flue gas and the 3rd slurries, the purifying smoke from flue gas and
Discharged at the top of the IV of slurries Disengagement zone.
In the utility model, the slurries area I is used to store the first slurries, the second slurries and the 3rd slurries.
In the utility model, main body 1 includes being arranged on the smoke inlet 2 and serum outlet 3 of the bottom of main body 1, and
It is arranged on the exhanst gas outlet 10 on the top of main body 1；The interior structure component is included in the flue gas set gradually from bottom to up in main body 1
Distributor 4, lime stone slurry atomization sprayer 5, lime stone slurry entrance 6, calcium hypochlorite slurry spraying spray thrower 7 and hypochlorous acid
Calcium injection point 8.
In the utility model, the smoke inlet 2 is connected with flue gas distributor 4, for will contain sulfur dioxide and
The flue gas of mercury is passed through sulfur dioxide removal area II.
In the utility model, the lime stone slurry atomization sprayer 5 is connected with lime stone slurry entrance 6, is used for
Lime stone slurry is passed through sulfur dioxide removal area II, is in contact with the flue gas containing sulfur dioxide and mercury and carries out removing titanium dioxide
Sulphur.
In the utility model, the calcium hypochlorite slurry spraying spray thrower 7 is connected with calcium hypochlorite slurries entrance 8,
For calcium hypochlorite slurries to be passed through into sulfur dioxide and mercury deep removal area III, it is in contact with first flue gas and carries out dioxy
Change sulphur and mercury deep removal.
It is slurries area I, flue gas distributor 4 and lime in the utility model, between smoke inlet 2 and flue gas distributor 4
It is sulfur dioxide removal area II, lime stone slurry atomization sprayer 5 and calcium hypochlorite slurry spraying between stone slurry spraying spray 5
Be sulfur dioxide and mercury deep removal area III between spray thrower 7, calcium hypochlorite slurry spraying spray thrower 7 and exhanst gas outlet 10 it
Between for flue gas and slurries Disengagement zone IV.
In the case of the utility model is preferable, flue gas and pulp separator 9 are additionally provided with flue gas and slurries Disengagement zone IV,
For the second flue gas to be carried out into gas-liquid separation.Flue gas and pulp separator 9 can carry out deep to a small amount of slurries carried secretly in flue gas
The gas-liquid separation of degree, effectively prevent from being entrained with slurries in the flue gas of discharger.
In the utility model, the lime stone slurry atomization sprayer 5 includes multiple lime for being arranged concentrically and communicating
Stone slurries annular duct 15 and multiple lime stone slurry shower nozzles 14 in lime stone slurry annular duct 15.
In the utility model, the number of the lime stone slurry annular duct 15 can as needed depending on, have no
It is particularly limited to.
In the utility model, the number of the lime stone slurry shower nozzle 14 can as needed depending on, have no special limit
It is fixed.
In the case of the utility model is preferable, the multiple lime stone slurry shower nozzle 14 is uniformly arranged on lime stone slurry
In annular duct 15.
In situations where it is preferred, the spray of the lime stone slurry shower nozzle 14 is directed downward.
In the utility model, the lime stone slurry annular duct 15 is used to convey lime stone slurry.
In the utility model, the lime stone slurry shower nozzle 14 conveys for spraying lime stone slurry annular duct 15
Lime stone slurry.
In the utility model, the ratio of the maximum outside diameter of the lime stone slurry annular duct 15 and the internal diameter of main body 1
Value is not particularly limited, for the purpose of it can realize fully contact.In situations where it is preferred, the lime stone slurry annular
The ratio of the maximum outside diameter of delivery pipe 15 and the internal diameter of main body 1 is：(0.8-0.95):1, such as can be 0.8:1、0.85:1、
0.9:1、0.95:1 and these numerical value in the scope that is formed of any two in arbitrary value.
In the utility model, the calcium hypochlorite slurry spraying spray thrower 7 includes multiple times for being arranged concentrically and communicating
Calcium chlorate slurries annular duct 17 and multiple calcium hypochlorite slurries spray in calcium hypochlorite slurry liquid annular duct 17
First 16.
In the utility model, the number of the calcium hypochlorite slurry liquid annular duct 17 can as needed depending on, and
It is not particularly limited.
In the utility model, the number of the calcium hypochlorite slurries shower nozzle 16 can as needed depending on, have no especially
Limit.
In the case of the utility model is preferable, the multiple calcium hypochlorite slurries shower nozzle 16 is uniformly arranged on calcium hypochlorite
In slurries annular duct 17.
In situations where it is preferred, the spray of the calcium hypochlorite slurries shower nozzle 16 is directed downward.
In the utility model, the calcium hypochlorite slurry liquid annular duct 17 is used to convey calcium hypochlorite slurries.
In the utility model, the calcium hypochlorite slurries shower nozzle 16 is used to spray calcium hypochlorite slurry liquid annular duct 17
The calcium hypochlorite slurries of conveying.
In the utility model, the maximum outside diameter of the calcium hypochlorite slurry liquid annular duct 17 and the internal diameter of main body 1
Ratio is not particularly limited, for the purpose of it can realize fully contact.In situations where it is preferred, the calcium hypochlorite slurries
The ratio of the maximum outside diameter of annular duct 17 and the internal diameter of main body 1 is：(0.8-0.95):1, such as can be 0.8:1、
0.85:1、0.9:1、0.95:1 and these numerical value in the scope that is formed of any two in arbitrary value.
In the utility model, the flue gas distributor 4 has multiple guiding air chambers 19 and the outlet of multiple flue gas distributors
18。
In the utility model, be oriented to air chamber 19 number can as needed depending on, be not particularly limited.
In the utility model, flue gas distributor outlet 18 number can as needed depending on, be not particularly limited.It is excellent
Selection of land, the number of flue gas distributor outlet 18 are identical with the number for being oriented to air chamber 19.
In the utility model, each outer rim of air chamber 19 that is oriented to can install one or more flue gas distributor outlets 18.
Preferably, each it is oriented to the outer rim of air chamber 19 and one flue gas distributor outlet 18 is installed.
In situations where it is preferred, in order to prevent the lime stone slurry of spray and/or calcium hypochlorite slurries from entering smoke distribution
Device outlet 18, the flue gas distributor outlet 18 are directed downward.
In the utility model, the removing means also includes entering installed in sulfur dioxide removal area II oxidation air
Mouthful, the oxidation air entrance is connected with oxidation fan, can be by sulfurous acid for air to be blasted into sulfur dioxide removal area II
Calcium is aoxidized to obtain calcium sulfate.
In situations where it is preferred, in order to prevent the lime stone slurry of spray and/or calcium hypochlorite slurries from entering oxidation air,
The angle α of the oxidation air entrance and the inwall of main body 1 is 10 ° to 85 °, for example, can be 10 °, 15 °, 30 °, 45 °, 60 °,
Arbitrary value in the scope that any two in 75 °, 80 °, 85 ° and these numerical value is formed.
With reference to Fig. 1, the process that is operated of device of removing sulfur dioxide in flue gas of the present utility model and mercury can be as
Under：
Flue gas containing sulfur dioxide and mercury is delivered to inside main body 1 from smoke inlet 2, flue gas passes through flue gas distributor
Guiding air chamber 19 in 4 exports after distributing from flue gas distributor outlet 18, subsequently into sulfur dioxide removal area II；Limestone slurry
The lime stone slurry atomization sprayer 5 that liquid is entered in main body 1 by lime stone slurry entrance 6, it is atomized and is sprayed by lime stone slurry
Lime stone slurry annular duct 15 on leaching device 5 conveys, and then sprays lime stone slurry by lime stone slurry shower nozzle 14；From
The flue gas of lower and upper flowing collides in sulfur dioxide removal area II with the lime stone slurry adverse current sprayed from top to bottom, fully connects
Touch, carry out sulfur dioxide removal, obtain the first flue gas and the first slurries.
First flue gas enters sulfur dioxide and mercury deep removal area III, and calcium hypochlorite slurries are entered by calcium hypochlorite slurries
The calcium hypochlorite slurry spraying spray throwers 7 that mouth 8 enters in main body 1, pass through the hypochlorous acid on calcium hypochlorite slurry spraying spray thrower 7
Calcium slurries annular duct 17 conveys, and then sprays calcium hypochlorite slurries by calcium hypochlorite slurries shower nozzle 16；Flow from bottom to top
The first dynamic flue gas touches in sulfur dioxide with mercury deep removal area III with the calcium hypochlorite slurries adverse current sprayed from top to bottom
Hit, fully contact, carry out sulfur dioxide and mercury depth cooperation-removal, obtain the second flue gas and the second slurries.
Second flue gas enters flue gas and slurries Disengagement zone IV, and gas-liquid separation is carried out by flue gas and pulp separator 9, by the
The a small amount of slurries separation being mingled with two flue gases, the flue gas and the 3rd slurries being purified.
The flue gas of purification is discharged from the exhanst gas outlet 10 at the top of main body 1.
First slurries, the second slurries and the 3rd slurries move downward by Action of Gravity Field, by sulfur dioxide removal area
It is calcium sulfate by the calcium sulfite oxidation contained in slurries, then with the air contact blasted by oxidation air entrance during II
Slurries continue to move downward, and the first slurries, the second slurries and the 3rd slurries are finally stored in slurries area I, fixed by serum outlet 3
Slurries are discharged main body 1 or discharge main body 1 in operation by the phase.
Preferred embodiment of the present utility model described in detail above, still, the utility model is not limited to this.At this
In the range of the technology design of utility model, a variety of simple variants can be carried out to the technical solution of the utility model, including it is each
Technical characteristic is combined with any other suitable method, and these simple variants and combination should equally be considered as the utility model
Disclosure of that, belong to the scope of protection of the utility model.
Claims (10)
1. a kind of device for removing sulfur dioxide in flue gas and mercury, it is characterised in that the device includes main body (1) and interior structure group
The inner space of main body (1) is divided into slurries area (I), sulfur dioxide removal area (II), two by part, the interior structure component from bottom to up
Sulfur oxide and mercury deep removal area (III) and flue gas and slurries Disengagement zone (IV)；Wherein,
The sulfur dioxide removal area (II) is used to the flue gas containing sulfur dioxide and mercury carrying out sulfur dioxide removal, obtains the
One flue gas and the first slurries；
The sulfur dioxide is used to first flue gas carrying out sulfur dioxide with mercury deep removal area (III) and mercury depth takes off
Remove, obtain the second flue gas and the second slurries；
The flue gas is used to second flue gas carrying out gas-liquid separation with slurries Disengagement zone (IV), is purified flue gas and the 3rd
Slurries, the purifying smoke are discharged at the top of flue gas and slurries Disengagement zone (IV)；
The slurries area (I) is used to store the first slurries, the second slurries and the 3rd slurries.
2. device according to claim 1, it is characterised in that main body (1) includes being arranged on the flue gas of the bottom of main body (1)
Entrance (2) and serum outlet (3), and it is arranged on the exhanst gas outlet (10) on the top of main body (1)；The interior structure component is included in
Flue gas distributor (4), lime stone slurry atomization sprayer (5), the lime stone slurry set gradually from bottom to up in main body (1) enters
Mouth (6), calcium hypochlorite slurry spraying spray thrower (7) and calcium hypochlorite slurries entrance (8)；Wherein,
The smoke inlet (2) is connected with flue gas distributor (4), for the flue gas containing sulfur dioxide and mercury to be passed through into dioxy
Change sulphur removing area (II)；
The lime stone slurry atomization sprayer (5) is connected with lime stone slurry entrance (6), for lime stone slurry to be passed through
Sulfur dioxide removal area (II), it is in contact with the flue gas containing sulfur dioxide and mercury and carries out scrubbing CO_2；
The calcium hypochlorite slurry spraying spray thrower (7) is connected with calcium hypochlorite slurries entrance (8), for by calcium hypochlorite slurry
Liquid is passed through sulfur dioxide and mercury deep removal area (III), and being in contact with first flue gas carries out sulfur dioxide and mercury depth and take off
Remove；
Wherein, it is slurries area (I), flue gas distributor (4) and lime stone slurry between smoke inlet (2) and flue gas distributor (4)
It is sulfur dioxide removal area (II) lime stone slurry atomization sprayer (5) and calcium hypochlorite slurry liquid mist between atomization sprayer (5)
It is sulfur dioxide and mercury deep removal area (III), calcium hypochlorite slurry spraying spray thrower (7) and flue gas between change spray thrower (7)
It is flue gas and slurries Disengagement zone (IV) between outlet (10).
3. device according to claim 1 or 2, it is characterised in that be additionally provided with flue gas in flue gas and slurries Disengagement zone (IV)
With pulp separator (9), for by the second flue gas carry out gas-liquid separation.
4. device according to claim 2, it is characterised in that the lime stone slurry atomization sprayer (5) includes multiple
The lime stone slurry annular duct (15) that is arranged concentrically and communicates and in lime stone slurry annular duct (15)
Multiple lime stone slurry shower nozzles (14)；The spray of the lime stone slurry shower nozzle (14) is directed downward；Wherein,
The lime stone slurry annular duct (15) is used to convey lime stone slurry；
The lime stone slurry shower nozzle (14) is used for the lime stone slurry for spraying lime stone slurry annular duct (15) conveying.
5. device according to claim 4, it is characterised in that the maximum of the lime stone slurry annular duct (15) is outer
Footpath and the ratio of the internal diameter of main body (1) are：(0.8-0.95):1.
6. device according to claim 2, it is characterised in that the calcium hypochlorite slurry spraying spray thrower (7) includes more
The individual calcium hypochlorite slurry liquid annular duct (17) for being arranged concentrically and communicating and installed in calcium hypochlorite slurry liquid annular duct
(17) multiple calcium hypochlorite slurries shower nozzles (16) on；The spray of the calcium hypochlorite slurries shower nozzle (16) is directed downward；Wherein,
The calcium hypochlorite slurry liquid annular duct (17) is used to convey calcium hypochlorite slurries；
The calcium hypochlorite slurries shower nozzle (16) is used for the calcium hypochlorite for spraying calcium hypochlorite slurry liquid annular duct (17) conveying
Slurries.
7. device according to claim 6, it is characterised in that the maximum of the calcium hypochlorite slurry liquid annular duct (17)
The ratio of external diameter and the internal diameter of main body (1) is：(0.8-0.95):1.
8. device according to claim 2, it is characterised in that the flue gas distributor (4) has multiple guiding air chambers
(19) and multiple flue gas distributors export (18)；Wherein,
Each air chamber (19) outer rim that is oriented to installs one or more flue gas distributor outlets (18),
The flue gas distributor outlet (18) is directed downward.
9. according to the device described in any one in claim 2 and 4-8, it is characterised in that described device also includes being arranged on
The oxidation air entrance in sulfur dioxide removal area (II), the oxidation air entrance is connected with oxidation fan, for air to be roused
Enter sulfur dioxide removal area (II), calcium sulfite is aoxidized to obtain calcium sulfate.
10. device according to claim 9, it is characterised in that the angle of the oxidation air entrance and main body (1) inwall
α is 10 ° to 85 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720848079.2U CN206881495U (en) | 2017-07-13 | 2017-07-13 | Remove the device of sulfur dioxide in flue gas and mercury |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720848079.2U CN206881495U (en) | 2017-07-13 | 2017-07-13 | Remove the device of sulfur dioxide in flue gas and mercury |
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| CN206881495U true CN206881495U (en) | 2018-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720848079.2U Active CN206881495U (en) | 2017-07-13 | 2017-07-13 | Remove the device of sulfur dioxide in flue gas and mercury |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109847568A (en) * | 2019-04-22 | 2019-06-07 | 四川恒创博联科技有限责任公司 | Pre-oxidize laminar flow atomization system |
| CN112870944A (en) * | 2021-01-15 | 2021-06-01 | 昆明理工大学 | Treatment device and treatment method for flue gas desulfurization, mercury removal and resource recovery |
-
2017
- 2017-07-13 CN CN201720848079.2U patent/CN206881495U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109847568A (en) * | 2019-04-22 | 2019-06-07 | 四川恒创博联科技有限责任公司 | Pre-oxidize laminar flow atomization system |
| CN112870944A (en) * | 2021-01-15 | 2021-06-01 | 昆明理工大学 | Treatment device and treatment method for flue gas desulfurization, mercury removal and resource recovery |
| CN112870944B (en) * | 2021-01-15 | 2023-09-29 | 昆明理工大学 | Treatment device and treatment method for flue gas desulfurization and mercury removal and resource recovery |
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