CN205495319U - Wet flue gas desulfurization is in coordination with removing dust absorption tower - Google Patents
Wet flue gas desulfurization is in coordination with removing dust absorption tower Download PDFInfo
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- CN205495319U CN205495319U CN201620257133.1U CN201620257133U CN205495319U CN 205495319 U CN205495319 U CN 205495319U CN 201620257133 U CN201620257133 U CN 201620257133U CN 205495319 U CN205495319 U CN 205495319U
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Abstract
The utility model discloses a wet flue gas desulfurization is in coordination with removing dust absorption tower, spraying layer, a plurality of layer including absorption tower barrel, multistage defroster, a plurality of layer and holding liquid board, thick liquid pond and flue gas inlet passageway, multistage defroster, the top of absorption tower barrel is equipped with clean exhanst gas outlet in locating the absorption tower barrel in proper order down from last to spray layer and thick liquid pond, and the side of absorption tower barrel is equipped with the flue gas inlet who is linked together with the flue gas inlet passageway, and flue gas inlet is located the thick liquid pond and sprays between the layer, holds the liquid board and is located the bottom that respectively sprays layer and reaches and respectively spray between the layer. The utility model discloses can effectively improve desulfurization system's efficiency, realize high -efficient desorption SO2, simultaneously in coordination with the desorption dust, reach the requirement that the ultra -clean discharged.
Description
Technical field
This utility model belongs to atmospheric pollution smoke gas treatment technical field, relates to a kind of wet flue gas and takes off
Sulfur collaborative dedusting absorption tower.
Background technology
National environmental protection portion promulgated " fossil-fuel power plant atmospheric pollutant emission standard " in 2011
(GB13223-2011), improve the discharge standard of sulfur dioxide.Standard specifies, from 2014
On July 1, in rises, and new construction of coal-fired boiler sulfur dioxide in tail gas emission limit is 100mg/Nm3, weight
Point area alignment limit value is 50mg/Nm3.After 2013, along with haze is in most of China area
Increasingly come into one's own, various places environmental administration sulfur dioxide and dust emission to coal-burning power plant one after another
Limit value is made that tightened up limit value.What December in 2015 was printed and distributed on the 11st " implements in full coal-fired electricity
Factory's minimum discharge and reducing energy consumption programme of work " notice, it is desirable to the year two thousand twenty, national all tools
The coal-burning power plant of standby transformation condition strive realizing minimum discharge (i.e. under the conditions of benchmark oxygen content 6%,
Flue dust, sulfur dioxide, discharged nitrous oxides concentration is respectively no higher than 10,35,50mg/Nm3)。
Additionally, present stage flue gas desulfurization technique biases toward " extensive " total amount control of qualified discharge more
System, it is difficult to meet the pollutant catabolic gene demand of existing atmosphere quality.Especially different economical
Level, the area of environmental condition, need to adapt to the green technology of local characteristic, especially with less generation
The regional atmosphere polluting problem of valency, pointedly solution.
Under such background condition, need to apply the high-efficiency desulfurization become more meticulous collaborative dedusting technology
New standard-required could be met, thus finally improve the efficiency of detachment system, it is achieved efficient removal SO2,
Cooperation-removal dust simultaneously, reaches ultra-clean emission request, but does not has similar skill in prior art
Art.
Utility model content
The purpose of this utility model is the shortcoming overcoming above-mentioned prior art, it is provided that a kind of wet method
Flue gas desulfurization collaborative dedusting absorption tower, this absorption tower can be effectively improved the efficiency of desulphurization system,
Realize efficient removal SO2, cooperation-removal dust simultaneously, reach the requirement of ultra-clean discharge.
For reaching above-mentioned purpose, wet process of FGD described in the utility model collaborative dedusting absorb
If if tower includes that absorber tower cylinder, multi-stage demister dried layer spraying layer dried layer hold liquid plate, serosity
Pond and gas approach passage, multi-stage demister, spraying layer and slurry pool are sequentially arranged in suction from top to bottom
Receiving in tower body, the top of absorber tower cylinder is provided with neat stress outlet, and the side of absorber tower cylinder sets
Have the gas approach being connected with gas approach passage, gas approach be positioned at slurry pool and spraying layer it
Between, hold liquid plate between the bottom of each spraying layer and each spraying layer.
Multi-level oil demisting unit and one-level that multi-stage demister includes being sequentially distributed setting from top to bottom are thick
Demisting unit.
The number of plies holding liquid plate is identical less than or equal to the number of plies of spraying layer, and every layer is held liquid plate and is all distributed in
Between spraying layer.
The quantity holding liquid plate is 2 layers, wherein holds liquid plate and is positioned at uppermost ground floor spraying layer for one layer
And between second layer spraying layer, another layer is held liquid plate and is positioned at the lower section of all spraying layers.
The quantity holding liquid plate is 2 layers, wherein holds liquid plate and is positioned at uppermost second layer spraying layer for one layer
And between third layer spraying layer, another layer is held liquid plate and is positioned at the lower section of all spraying layers.
The quantity holding liquid plate is 2 layers, holds liquid plate for 2 layers and is respectively positioned on the lower section of all spraying layers.
The quantity holding liquid plate is 2 layers, wherein, holds liquid plate for one layer and is positioned at the two-layer spraying layer of the bottom
Between, another layer is held liquid plate and is positioned at the lower section of all spraying layers.
The quantity holding liquid plate is 2 layers, wherein, holds liquid plate between spraying layer for one layer, another layer
Hold liquid plate and be positioned at the lower section of all spraying layers.
Gas approach passage is 0 °-20 ° with the angle of horizontal plane.
Spacing between demister and neat stress outlet is 3-5m.
Holding and offer some through holes on liquid plate, the percent opening holding liquid plate is 20%-50%, the hole of through hole
Footpath is 20-40mm.
This utility model has the advantages that
Wet process of FGD described in the utility model collaborative dedusting absorption tower include absorbing tower
If if body, multi-stage demister dried layer spraying layer and dried layer hold liquid plate, respectively holding liquid plate and be positioned at spraying layer
Between and the bottom of all spraying layers, effective improve the uniformity of flow of flue gas in absorption tower, increase
Strong lime stone slurry and the time of contact of flue gas, significantly improve the desulfuration efficiency of flue gas, ash-laden gas
Through spraying layer, by the slurry wash of high-efficient atomizing, fall and hold with passing at the serosity held on liquid plate
The ash-laden gas intense contact of liquid plate, forms a large amount of micro-bubble, increases the specific surface area of drop,
Improve the drop trapping probability to dust, it is achieved the dust in desulfurization cooperation-removal flue gas simultaneously.
Further, if if dried layer spraying layer and dried layer hold the various combination of liquid plate, absorption tower can be made to exist
Under different resistance, all can significantly improve desulfuration efficiency and collaborative dust removing effects, reach ultra-clean row
The requirement put.
Further, thick demisting unit combines with multi-level oil demisting unit, effectively reduces what flue gas carried
Droplet, and remove chalk dust removing further.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of embodiment one in this utility model；
Fig. 3 is the structural representation of embodiment two in this utility model；
Fig. 4 is the structural representation of embodiment three in this utility model；
Fig. 5 is the structural representation of embodiment four in this utility model；
Fig. 6 is the structural representation of embodiment five in this utility model.
Fig. 7 is the structural representation of embodiment five in this utility model.
Wherein, 1 for absorber tower cylinder, 2 for multi-stage demister, 3 for spraying layer, 4 for hold liquid plate,
5 be slurry pool, 6 for gas approach passage, 7 for neat stress outlet.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is described in further detail:
Wet process of FGD described in the utility model collaborative dedusting absorption tower include absorber tower cylinder
If if 1, multi-stage demister 2 dried layer spraying layer 3 dried layer hold liquid plate 4, slurry pool 5 and flue gas
Intake channel 6, multi-stage demister 2, spraying layer 3 and slurry pool 5 are sequentially arranged in absorption from top to bottom
In tower body 1, the top of absorber tower cylinder 1 is provided with neat stress outlet 7, absorber tower cylinder 1
Side is provided with the gas approach being connected with gas approach passage 6, and gas approach is positioned at slurry pool 5
And between spraying layer 3, hold liquid plate 4 between the bottom and each spraying layer 3 of each spraying layer 3.
It should be noted that the angle of gas approach passage 6 and horizontal plane is 0 °-20 °；Except mist
Spacing between device 2 and neat stress outlet 7 is 3-5m；Hold and on liquid plate 4, offer some through holes,
The percent opening holding liquid plate 4 is 20%-50%, and the aperture of through hole is 20-40mm；Multi-stage demister 2
Including the multi-level oil demisting unit and the thick demisting unit of one-level that are sequentially distributed setting from top to bottom.Flue gas
The flue gas flow rate of intake channel 6 is 10～15m/s, and flue gas enters the inclination angle of absorber tower cylinder 1 and is
0～20 °；The bottom holds liquid plate 4 on gas approach passage 6 along 1.0～3.0m；Topmost essence
Demisting unit is 3～5m with the spacing on 7 times edges of neat stress outlet, and thick demisting unit is sprayed with the superiors
The distance drenching layer 3 is 2.5～4m.
Embodiment one
Hold the number of plies of liquid plate 4 identical less than or equal to the number of plies of spraying layer 3, and every layer to hold liquid plate 4 equal
It is distributed between spraying layer 3., between spraying layer 3 with adjacent holding between liquid plate 4 and spraying layer 3
Away from for 1.5～2.5m.
Embodiment two
The quantity holding liquid plate 4 is 2 layers, wherein one layer hold liquid plate 4 be positioned at uppermost ground floor spray
Drenching between layer 3 and second layer spraying layer 3, another layer is held liquid plate 4 and is positioned at all spraying layers 3 times
Side, spraying layer 3 is 1.5～2.5m with the adjacent spacing held between liquid plate 4 or spraying layer 3.
Embodiment three
The quantity holding liquid plate 4 is 2 layers, wherein one layer hold liquid plate 4 be positioned at the uppermost second layer spray
Drenching between layer 3 and third layer spraying layer 3, another layer is held liquid plate 4 and is positioned at all spraying layers 3 times
Side, spraying layer 3 is 1.5～2.5m with the adjacent spacing held between liquid plate 4 or spraying layer 3.
Embodiment four
The quantity holding liquid plate 4 is 2 layers, holds liquid plate 4 for 2 layers and is respectively positioned on the lower section of all spraying layers 3,
Spraying layer 3 is 1.5～2.5m with the adjacent spacing held between liquid plate 4 or spraying layer 3.
Embodiment five
The quantity holding liquid plate 4 is 2 layers, wherein, holds liquid plate 4 for one layer and is positioned at the two-layer spray of the bottom
Drenching between layer 3, another layer is held liquid plate 4 and is positioned at the lower section of all spraying layers 3, spraying layer 3 and phase
The adjacent spacing held between liquid plate 4 or spraying layer 3 is 1.5～2.5m.
Embodiment six
The quantity holding liquid plate 4 is 2 layers, wherein, holds liquid plate 4 between spraying layer 3 for one layer,
Another layer is held liquid plate 4 and is positioned at the lower section of all spraying layers 3, and spraying layer 3 holds liquid plate 4 with adjacent
Or the spacing between spraying layer 3 is 1.5～2.5m.
Specific works process of the present utility model is:
After flue gas enters absorber tower cylinder 1 by gas approach passage 6, through the spray of high-efficient atomizing
Drench the washing of serosity, and fall and hold the dust-laden of through hole on liquid plate 4 at the serosity held on liquid plate 4 with passing
Flue gas intense contact, forms fierce turbulent flow, and serosity is through the high velocity smoke holding liquid plate 4 through hole
Impact, forms a large amount of micro-bubble, increases the contact area that air-liquid is biphase, improves biphase
Mass-transfer efficiency, and then improve the desulfuration efficiency of lime stone slurry, improve drop simultaneously and dust is caught
Collection probability, it is achieved the dust in desulfurization cooperation-removal flue gas simultaneously.
Flue gas completes desulfurization through spraying layer 3 and works in coordination with dedusting after holding liquid plate 4, but high velocity air
A large amount of serosity can be carried and enter chimney, produce gypsum rain, this utility model by thick demisting unit and
The droplet that the combined effective minimizing flue gas of multi-level oil demisting unit carries, and remove chalk dust removing further.
Of the present utility model being mainly characterized in that: optimizes the internal arrangement in design absorption tower, arranges many
Layer holds liquid plate 4, uses the multiple compound mode holding liquid plate 4 and spraying layer 3, wants at different resistances
Ask down, be effectively improved flue gas flow field uniformity in absorber tower cylinder 1, strengthen lime stone slurry and cigarette
The contact of gas, significantly improves desulfuration efficiency and collaborative dust removing effects, reaches the requirement of ultra-clean discharge.
Claims (10)
1. a wet process of FGD collaborative dedusting absorption tower, it is characterised in that include absorption tower
Cylinder (1), multi-stage demister (2) are if dried layer spraying layer (3) is if dried layer holds liquid plate (4), slurry
Liquid pool (5) and gas approach passage (6), multi-stage demister (2), spraying layer (3) and slurry pool
(5) being sequentially arranged in from top to bottom in absorber tower cylinder (1), the top of absorber tower cylinder (1) sets
Having neat stress to export (7), the side of absorber tower cylinder (1) is provided with and gas approach passage (6) phase
The gas approach of connection, gas approach is positioned between slurry pool (5) and spraying layer (3), holds liquid plate
(4) it is positioned between bottom and each spraying layer (3) of each spraying layer (3).
Wet process of FGD the most according to claim 1 collaborative dedusting absorption tower, its feature
Be, multi-level oil demisting unit that multi-stage demister (2) includes being sequentially distributed setting from top to bottom and
The thick demisting unit of one-level.
Wet process of FGD the most according to claim 1 collaborative dedusting absorption tower, its feature
Being, the number of plies holding liquid plate (4) is identical less than or equal to the number of plies of spraying layer (3), and every layer is held liquid
Plate (4) is all distributed between spraying layer (3).
Wet process of FGD the most according to claim 1 collaborative dedusting absorption tower, its feature
Being, the quantity holding liquid plate (4) is 2 layers, wherein holds liquid plate (4) and is positioned at uppermost for one layer
Between one layer of spraying layer (3) and second layer spraying layer (3), another layer is held liquid plate (4) and is positioned at institute
There is the lower section of spraying layer (3).
Wet process of FGD the most according to claim 1 collaborative dedusting absorption tower, its feature
Being, the quantity holding liquid plate (4) is 2 layers, wherein holds liquid plate (4) and is positioned at uppermost for one layer
Between two layers of spraying layer (3) and third layer spraying layer (3), another layer is held liquid plate (4) and is positioned at institute
There is the lower section of spraying layer (3).
Wet process of FGD the most according to claim 1 collaborative dedusting absorption tower, its feature
Being, the quantity holding liquid plate (4) is 2 layers, holds liquid plate (4) for 2 layers and is respectively positioned on all spraying layers (3)
Lower section.
Wet process of FGD the most according to claim 1 collaborative dedusting absorption tower, its feature
Being, the quantity holding liquid plate (4) is 2 layers, wherein, holds liquid plate (4) for one layer and is positioned at the bottom
Between two-layer spraying layer (3), another layer is held liquid plate (4) and is positioned at the lower section of all spraying layers (3).
Wet process of FGD the most according to claim 1 collaborative dedusting absorption tower, its feature
Being, the quantity holding liquid plate (4) is 2 layers, wherein, holds liquid plate (4) for one layer and is positioned at spraying layer (3)
Between, another layer is held liquid plate (4) and is positioned at the lower section of all spraying layers (3).
Wet process of FGD the most according to claim 1 collaborative dedusting absorption tower, its feature
Being, gas approach passage (6) is 0 °-20 ° with the angle of horizontal plane, and demister (2) is with clean
Spacing between exhanst gas outlet (7) is 3-5m.
Wet process of FGD the most according to claim 1 collaborative dedusting absorption tower, its feature
Being, holding and offer some through holes on liquid plate (4), the percent opening holding liquid plate (4) is 20%-50%,
The aperture of through hole is 20-40mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620257133.1U CN205495319U (en) | 2016-03-30 | 2016-03-30 | Wet flue gas desulfurization is in coordination with removing dust absorption tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620257133.1U CN205495319U (en) | 2016-03-30 | 2016-03-30 | Wet flue gas desulfurization is in coordination with removing dust absorption tower |
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| CN205495319U true CN205495319U (en) | 2016-08-24 |
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| CN201620257133.1U Active CN205495319U (en) | 2016-03-30 | 2016-03-30 | Wet flue gas desulfurization is in coordination with removing dust absorption tower |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106799126A (en) * | 2017-03-19 | 2017-06-06 | 刘荣甫 | Device of the ammonia process of desulfurization energy-conservation more than one times |
| CN107308770A (en) * | 2017-08-25 | 2017-11-03 | 湖南锐取环保科技有限公司 | Dust arrester |
| CN108339390A (en) * | 2017-01-22 | 2018-07-31 | 同方环境股份有限公司 | A kind of fractional order reaction high-efficiency desulfurization collaboration dedusting absorption tower |
| CN115090090A (en) * | 2022-07-22 | 2022-09-23 | 中国华电科工集团有限公司 | Dust removal desulfurization absorption system and dust removal desulfurization absorption process |
-
2016
- 2016-03-30 CN CN201620257133.1U patent/CN205495319U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108339390A (en) * | 2017-01-22 | 2018-07-31 | 同方环境股份有限公司 | A kind of fractional order reaction high-efficiency desulfurization collaboration dedusting absorption tower |
| CN106799126A (en) * | 2017-03-19 | 2017-06-06 | 刘荣甫 | Device of the ammonia process of desulfurization energy-conservation more than one times |
| CN107308770A (en) * | 2017-08-25 | 2017-11-03 | 湖南锐取环保科技有限公司 | Dust arrester |
| CN115090090A (en) * | 2022-07-22 | 2022-09-23 | 中国华电科工集团有限公司 | Dust removal desulfurization absorption system and dust removal desulfurization absorption process |
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