CN208275227U - A wet flue gas desulfurization device combined with flue gas dewhitening - Google Patents
A wet flue gas desulfurization device combined with flue gas dewhitening Download PDFInfo
- Publication number
- CN208275227U CN208275227U CN201820292630.4U CN201820292630U CN208275227U CN 208275227 U CN208275227 U CN 208275227U CN 201820292630 U CN201820292630 U CN 201820292630U CN 208275227 U CN208275227 U CN 208275227U
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- China
- Prior art keywords
- flue gas
- absorption tower
- lime
- desulfurization
- desulfurization absorption
- 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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- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 75
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 239000003546 flue gas Substances 0.000 title claims abstract description 48
- 230000023556 desulfurization Effects 0.000 title claims abstract description 45
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 65
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 65
- 239000004571 lime Substances 0.000 claims abstract description 65
- 239000002002 slurry Substances 0.000 claims abstract description 43
- 238000010521 absorption reaction Methods 0.000 claims abstract description 15
- 238000007791 dehumidification Methods 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims description 30
- 239000007921 spray Substances 0.000 claims description 25
- 229910052602 gypsum Inorganic materials 0.000 claims description 8
- 239000010440 gypsum Substances 0.000 claims description 8
- 238000010792 warming Methods 0.000 claims 2
- 238000009434 installation Methods 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 239000000779 smoke Substances 0.000 abstract description 4
- 230000000630 rising effect Effects 0.000 abstract 5
- 230000008030 elimination Effects 0.000 abstract 1
- 238000003379 elimination reaction Methods 0.000 abstract 1
- 230000002087 whitening effect Effects 0.000 abstract 1
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 12
- 239000007789 gas Substances 0.000 description 12
- 239000003517 fume Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 235000019504 cigarettes Nutrition 0.000 description 7
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 6
- 239000003230 hygroscopic agent Substances 0.000 description 5
- 230000008676 import Effects 0.000 description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 235000012255 calcium oxide Nutrition 0.000 description 3
- 239000000292 calcium oxide Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000003796 beauty Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 210000002966 serum Anatomy 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 229920002313 fluoropolymer Polymers 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000035935 pregnancy Effects 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model provides a wet flue gas desulfurization device combining with flue gas whitening, which has the advantages of simple system, reliable operation, easy realization of white smoke elimination, low energy consumption and low cost; the device comprises a fan, a desulfurization absorption tower and a chimney, wherein the fan is connected with the desulfurization absorption tower, a lime bin, a lime slurry tank stirrer and a lime slurry supply pump are sequentially connected and then connected with the desulfurization absorption tower, a dehumidification temperature rising device is connected between the desulfurization absorption tower and the lime bin, the chimney is connected with the dehumidification temperature rising device, the dehumidification temperature rising device comprises a conveying mechanism arranged in the dehumidification temperature rising device, and a feed inlet is formed in the dehumidification temperature rising device and is positioned right above a conveying line of the conveying mechanism.
Description
Technical field
The utility model relates to technical field of energy saving and environmental protection, specially a kind of combination flue gas takes off white wet flue gas desulfurization dress
It sets.
Background technique
In the flue gas that coal-fired boiler in power plant, sintering machine of steel mill and some other combustion of fossil fuels kiln generate, contain
A large amount of sulfur dioxide, to form the environmental hazards such as acid rain, is mostly by wet at present if direct emission can pollute air
Method desulfurizer removes the sulfur dioxide in flue gas, but since the humidity of flue gas after wet desulphurization is up to 13 ~ 15%, flue gas
Temperature is lower, and between 50 ~ 55 DEG C, flue gas is discharged into atmosphere by chimney and mixes with cold air, and the vapor in flue gas was in
Saturation state, part vapor condense fogging, just will appear " white cigarette " phenomenon, especially winter, can aggravate white cigarette phenomenon, are easy
Visual pollution is caused, environmental beauty is influenced；In order to eliminate the white cigarette formed above blowdown stack, it is generally used flue gas again
The method of heat or GGH is used, i.e., using the heat of high-temperature flue gas before desulfurization, flue gas after heating desulfurization makes temperature be greater than 75
~ 80 DEG C or SGH is used, i.e., using the flue gas after the heating desulfurization of boiler steam, so that temperature is greater than 80 ~ 90 DEG C, but the former makes
Method, still temperature be not high, and is also easy to produce acid moisture condensation and corrodes equipment, and often have the problem of equipment blocking leakage, should
Method in time earlier using more, and the problem of the method that the latter uses is consumed there are additional energy, or in the patent No.
In CN201510071612, it discloses a kind of flue gas reheat system and reheating method based on fluoroplastics, but its cost of investment
Higher, for another example patent No. CN201610557160, utilizes boiler recirculated cooling water cooled flue gas dehumidifying and cooling it discloses a kind of,
It has recycled the heat of boiler to reheat flue gas, but increase has cooling, heating system in the structure, and not only structure is multiple
Miscellaneous, energy consumption is also relatively high.
Summary of the invention
For existing issue, the utility model provides a kind of combination flue gas and takes off white wet type fume sweetening device, this is
It unites simple, reliable for operation, is not only easy to realize and eliminates white cigarette, and low energy consumption, it is at low cost.
Its technical solution is such that it includes blower, desulfuration absorbing tower, chimney, and the blower connects the desulfurization and inhales
Tower is received, lime silo, lime slurry box mixer, the sequential connection of lime slurry supply pump are followed by the desulfuration absorbing tower, and feature exists
In: dehumidifying heating device is connected between the desulfuration absorbing tower and the lime silo, the chimney connects the dehumidifying heating
Device, the dehumidifying heating device includes the conveying mechanism being installed in it, and feed inlet is provided on the dehumidifying heating device, and be located at institute
Right above the pipeline for stating conveying mechanism.
It is further characterized by:
The desulfuration absorbing tower is tube structure, and demister setting up and down, spray are equipped in the desulfuration absorbing tower
Pipe, the air inlet connecting with the blower are set on the desulfuration absorbing tower below the spray tube, and the desulfurization absorbs
Tower bottom is equipped with slurry discharge ports, gypsum outlet, connects institute by pipeline after slurry discharge ports connection slurry circulating pump
State spray tube；
It is transversely arranged in the desulfuration absorbing tower to have spray tube, and the height and position of spray tube described in every group is different；
The dehumidifying heating device bottom is in back taper, and discharge port is set to the dehumidifying heating device bottom, and described in connection
Lime silo；
The conveying mechanism is belt conveyor, and the feed inlet is set to the pipeline entrance position of the conveying mechanism
It sets, the discharge port is set to the pipeline outlet port of the conveying mechanism.
The utility model has the beneficial effects that sulfur-containing smoke gas carries out desulfurization by desulfuration absorbing tower, flue gas after desulfurization is containing wet
Amount is still relatively high, and temperature is also low, is constantly launched in hygroscopic agent to dehumidifying heating device on the pipeline of conveying mechanism through feed inlet, one
Aspect absorbs the water vapour of the desulfurization fume of entrance, is also further stripped of remaining sulfur dioxide and dust in flue gas, separately
On the one hand it carries out falling after chemical reaction generates white lime and passes through lime silo Collection utilization, and can be discharged in this dehumidification process
A large amount of heat out, these heats heated desulfurization fume again, increase desulfurization fume temperature, chimney subsequent discharged into, thus not
The white cigarette formed above chimney is only eliminated, meets the emission request of sulfur dioxide and dust, without additional input steam etc.
Thermal energy, low energy consumption is at low cost, realizes the energy-saving and emission-reduction of flue gas desulfurization.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
As shown in Figure 1, the utility model is that a kind of combination flue gas takes off white wet type fume sweetening device comprising blower 1,
Desulfuration absorbing tower 2, dehumidifying heating device 3, chimney 4, lime silo 5, lime slurry box mixer 6, lime slurry supply pump 7, serum recycle
Pump 8, lime silo 5, lime slurry box mixer 6, the sequential connection of lime slurry supply pump 7 are followed by absorbing in desulfuration absorbing tower 2 in desulfurization
Connection dehumidifying heating device 3 between tower 2 and lime silo 5, the connection dehumidifying heating device 3 of chimney 4, dehumidifying heating device 3 includes being installed on it
Interior conveying mechanism is provided with feed inlet 9 on the heating device 3 that dehumidifies, and is located at right above the pipeline of conveying mechanism.
Specifically, blower 1 provides power for the flowing of flue gas, and the import of blower 1 is connected by pipeline and external cleaner
It connects, outlet is connect by pipeline with 2 gas inlet of desulfuration absorbing tower；
Desulfuration absorbing tower 2 is desulphurization plant, is tube structure, is equipped with demister setting up and down in desulfuration absorbing tower 2
10, spray tube 11, spray tube 11 are equipped with spray head, and demister 10 is set to the exhanst gas outlet position of desulfuration absorbing tower 2, and desulfurization is inhaled
It receives 2 exhanst gas outlet of tower to connect with dehumidifying 3 gas inlet of heating device, the air inlet connecting with blower 1 is set to 11 lower section of spray tube
Desulfuration absorbing tower 2 on, 2 bottom of desulfuration absorbing tower is equipped with slurry discharge ports, gypsum outlet 12, and the import of spray tube 11 passes through
Pipeline and the outlet of slurry circulating pump 8 connect, and lime slurry import 13 is connected by pipeline and the outlet of lime slurry supply pump 7, slurries row
Outlet is connect by pipeline with 8 import of slurry circulating pump, and bottom gypsum outlet 12 passes through pipeline and external gypsum processing apparatus
Connection；4 groups of spray tubes 11 are transversely arranged in desulfuration absorbing tower 2, and the height and position of every group of spray tube 11 is different；
Dehumidifying heating device 3 is desulfurization fume dehumidifying heating device, and the gas inlet of dehumidifying heating device 3 passes through pipeline and desulfurization
The connection of 2 exhanst gas outlet of absorption tower, exhanst gas outlet are connect by pipeline with 4 bottom inlet of chimney, and upper part has feed inlet 9, with side
Just constantly investment quick lime, lower part white lime discharge port are connect by pipeline with 5 upper feed inlet of lime silo；Dehumidify heating device 3
Interior conveying mechanism (being not drawn into figure) is belt conveyor, or using the moving bed that can be conveyed, can be according to feelings
Condition setting is accordingly for conveying the conveying mechanism of quick lime, and feed inlet 9 is set to the pipeline entry position of conveying mechanism, out
Material mouth is set to the pipeline outlet port of conveying mechanism, then the white lime generated falls when being delivered to pipeline outlet port
Fall behind and is directly discharged from discharge port；Or dehumidifying 3 bottom of heating device is in back taper, discharge port is set to dehumidifying 3 bottom of heating device,
And connection lime silo 5, then white lime drops down onto discharge port discharge along inner wall downslide after falling to dehumidifying 3 bottom of heating device；
Chimney 4 is cylindrical structure, and 4 top discharge outlet of chimney is connected to atmosphere；
Lime silo 5 is storage white lime feed bin, and 5 upper feed inlet of lime silo is gone out by pipeline and dehumidifying 3 lower part of heating device
Material mouth connection, 5 lower part discharge port of lime silo by pipeline respectively with 6 upper feed inlet of lime slurry box mixer, external storage and transportation
Device connection；
Lime slurry box mixer 6 is the place that lime is mixed with water, passes through uniform stirring shape in this lime and water
At lime slurry, 6 upper feed inlet of lime slurry box mixer is connect by pipeline with 5 lower part discharge port of lime silo, lower part stone
Grey serum outlet is connect by pipeline with 7 import of lime slurry supply pump；
Lime slurry supply pump 7 is to provide the power-equipment of lime slurry for desulfuration absorbing tower 2；
Slurry circulating pump 8 is to carry out circulated sprinkling for desulfuration absorbing tower 2 to provide the equipment of power.
A kind of combination flue gas takes off the application method of white wet type fume sweetening device comprising following steps:
(1), it by the sulfur-containing smoke gas of cleaner dedusting, is sent into desulfuration absorbing tower 2 by pipeline via blower 1,
Spray tube 11, demister 10 are from bottom to top passed sequentially through in desulfuration absorbing tower 2, are then arranged by 2 exhanst gas outlet of desulfuration absorbing tower
Out, the lime slurry that 2 bottom of desulfuration absorbing tower is stored is pumped into spray tube 11 by slurry circulating pump 8, and sulfur-containing smoke gas is first and sprays
The lime slurry contact that pipe 11 sprays is sufficiently mixed, and the lime in the sulfur dioxide and lime slurry in flue gas carries out anti-
It answers, scrubbing CO_2 generates gypsum, and is discharged by 2 bottom gypsum outlet 12 of desulfuration absorbing tower, then by external gypsum
Processing unit is disposed；Still contain a large amount of water mist in flue gas after desulfurization, is then removed in flue gas by demister 10
Droplet；What is come out from desulfuration absorbing tower 2 is high humidity low-temp desulfurization flue gas, then is removed the flue gas of droplet and enter dehumidifying heating device 3
In, hygroscopic agent is constantly put into through feed inlet 9 on the conveyer belt of conveying mechanism, and during transportation, one side hygroscopic agent is again
The water vapour for the desulfurization fume being absorbed into can further remove remaining sulfur dioxide and dust in flue gas, separately at the same time
On the one hand the water vapour and hygroscopic agent absorbed carries out chemical reaction and generates white lime, and releases heat and heat desulfurization fume, then
Desulfurization fume humidity reduces temperature and increases, defeated into 4 qualified discharge of chimney then via dehumidifying 3 exhanst gas outlet of heating device discharge
The white lime for being sent to pipeline outlet port falls and passes through lime silo 5 and collects；Wherein, hygroscopic agent uses quick lime；
(2), the white lime in lime silo 5 enters in lime slurry box mixer 6 with water after mixing evenly, through lime for slurry
Pump 7 is sent in desulfuration absorbing tower 2 to carry out circulated sprinkling；Wherein, the white lime in lime silo 5 be dehumidifying heating device 3 in not
Stopping pregnancy is raw, therefore the white lime can be remaining and makees multiple use, and white lime a part in lime silo 5 is admitted to lime slurry
It being stirred in box mixer 6 with water, white lime and water are by uniform stirring formation lime slurry, then via lime slurry supply pump 7,
Enter desulfuration absorbing tower 2 by pipeline, reused for flue gas desulfurization, slurry circulating pump 8 extracts stone out from 2 lower part of desulfuration absorbing tower
Grey slurries are sent into 2 spray tube 11 of desulfuration absorbing tower by pipeline, then spray the titanium dioxide in droplet absorption flue gas from spray tube 11
Sulphur, extra lime slurry are fallen into tower, are sent into 11 circulated sprinkling of spray tube by slurry circulating pump 8 again；Another part is sent
To external storage and transportation apparatus, to be widely used for building materials, environmental protection, industrial use.
The utility model is dehumidifying heating device 3 to be additionally arranged in original wet flue gas desulfurization system, and be disposed at
Behind desulfuration absorbing tower 2, as a component part of wet flue gas desulfurization system, system is simple, reliable for operation, it is easy to accomplish
White cigarette is eliminated, the thermal energy such as additional input steam are not needed yet, without being further added by heating, cooling equipment, low energy consumption, cost
It is low, flue gas desulfurization energy-saving and emission-reduction may be implemented, eliminate white cigarette increase environmental beauty.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820292630.4U CN208275227U (en) | 2018-03-02 | 2018-03-02 | A wet flue gas desulfurization device combined with flue gas dewhitening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820292630.4U CN208275227U (en) | 2018-03-02 | 2018-03-02 | A wet flue gas desulfurization device combined with flue gas dewhitening |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208275227U true CN208275227U (en) | 2018-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820292630.4U Active CN208275227U (en) | 2018-03-02 | 2018-03-02 | A wet flue gas desulfurization device combined with flue gas dewhitening |
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| CN (1) | CN208275227U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108273370A (en) * | 2018-03-02 | 2018-07-13 | 无锡雪浪环境科技股份有限公司 | A wet flue gas desulfurization device combined with flue gas dewhitening and its use method |
| CN110215820A (en) * | 2019-05-29 | 2019-09-10 | 华电电力科学研究院有限公司 | A kind of new and effective semidry method Multistage desulfuration device and working method |
-
2018
- 2018-03-02 CN CN201820292630.4U patent/CN208275227U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108273370A (en) * | 2018-03-02 | 2018-07-13 | 无锡雪浪环境科技股份有限公司 | A wet flue gas desulfurization device combined with flue gas dewhitening and its use method |
| CN110215820A (en) * | 2019-05-29 | 2019-09-10 | 华电电力科学研究院有限公司 | A kind of new and effective semidry method Multistage desulfuration device and working method |
| CN110215820B (en) * | 2019-05-29 | 2024-02-20 | 华电电力科学研究院有限公司 | Novel efficient semi-dry method multistage desulfurization device and working method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 214000 no.2020 Lihu Avenue, Binhu District, Wuxi City, Jiangsu Province Patentee after: WUXI XUELANG ENVIRONMENTAL TECHNOLOGY Co.,Ltd. Address before: 214128, Wuxi, Jiangsu province Binhu District Taihu Street double new economic Park Patentee before: WUXI XUELANG ENVIRONMENTAL TECHNOLOGY Co.,Ltd. |