CN207822701U - A kind of high-effective dust-removing and device for reclaiming moisture - Google Patents
A kind of high-effective dust-removing and device for reclaiming moisture Download PDFInfo
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- CN207822701U CN207822701U CN201720899376.XU CN201720899376U CN207822701U CN 207822701 U CN207822701 U CN 207822701U CN 201720899376 U CN201720899376 U CN 201720899376U CN 207822701 U CN207822701 U CN 207822701U
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Abstract
The utility model discloses a kind of high-effective dust-removing and device for reclaiming moisture, including absorption tower, wet desulfurization system and washing depth dust pelletizing system；Wet desulfurization system includes the first washing spraying layer and wet desulphurization recirculating pump from top to bottom；First washing spraying layer feed pipe is connect with wet desulphurization recirculating pump water outlet, and wet desulphurization recirculating pump feed water inlet is connect with absorption tower bottom end；It includes outlet demister, the second washing spraying layer, entrance demister, circulating water pool and circulating water pool spill box to wash depth dust pelletizing system from top to bottom；Flue gas enters absorption tower, wet desulfurization system is first passed through to flue gas desulfurization, it enters back into washing depth dust pelletizing system and deep clean washing is carried out to flue gas, the dissolving salinity for reducing the dust concentration in flue gas, exporting droplet, the cooling heat exchanger in circulating water pool can reduce circulating water temperature simultaneously, to reduce flue-gas temperature indirectly, the moisture in recovered flue gas, and the present apparatus can effectively remove SO2And S03, realize high-effective dust-removing and moisture recycling.
Description
Technical field
The utility model is related to a kind of gas cleaning and processing technology fields more particularly to a kind of high-effective dust-removing and moisture to return
Receiving apparatus.
Background technology
Conventional wet desulfurization system while desulfurization, there is one in such a way that slurries carry out flue gas cycle washing
Fixed dust removing effects are mainly realized by spray washing and demister.In practical applications, dedusting function is very unstable,
And it is inefficient, cause system outlet dust concentration exceeded, in addition, in the case where increasingly strict dust emission requires, desulfurization goes out
Mouth dust is difficult often up to standard, is needed by additional equipment.It is wet due to entering meanwhile in conventional wet desulfurizing process
The flue-gas temperature of formula desulfurizing tower is higher, and the moisture evaporation in desulfurization slurry can be ultimately discharged into air with flue gas, caused by heat
The loss of large quantity of moisture.Further, since containing large quantity of moisture in desulfurizing tower exiting flue gas, can cause to occur in chimney outlet white
Color plume.
Currently, to keep dust in the flue gas finally discharged up to standard, it usually can be for example, by reducing desulfuration absorbing tower entrance
Dust concentration increases wet electrical dust precipitator in wet desulphurization downstream, or increases washing dust pelletizing system in wet desulphurization downstream.But
It is the equal existing defects of above-mentioned conventional method, for example, by using the method for reducing desulfuration absorbing tower Inlet dust concentration, since wet method is de-
Sulphur can increase a part of dust contribution, cause to be unable to reach discharge standard using the method；Increase using in wet desulphurization downstream
Although wet electrical dust precipitator can play extraordinary effect, this method investment cost is high, takes up a large area；Using de- in wet method
Sulphur downstream, which increases washing dust pelletizing system, can increase additional land used.Meanwhile any of the above method can not be realized effectively in flue gas
Moisture recycles, so while being badly in need of a kind of high-effective dust-removing moisture recovery scheme and provide dust qualified discharge scheme for factory, does
To take up little area, with good investment, low energy consumption, simple system, realize the water in effective recovered flue gas while the efficient removal of dust
Point.
Utility model content
In view of the above problems, the purpose of this utility model is to provide a kind of high-effective dust-removing and device for reclaiming moisture, to solve
Certainly flue gas desulfurization and dedusting takes up an area moisture in big, of high cost, flue gas and can not effectively recycle, and the big problem of desulphurization system water consume is realized
The qualified discharge and moisture of flue gas recycle.
Technical solution provided by the utility model is：
A kind of high-effective dust-removing and device for reclaiming moisture, including absorption tower, wet desulfurization system and washing depth dust pelletizing system；
The wet desulfurization system and the washing depth dust pelletizing system are set gradually in the absorption tower along flow of flue gas direction；
The wet desulfurization system includes the first washing spraying layer and wet desulphurization recirculating pump from top to bottom；First water
The feed pipe of washing and spraying layer is connect with the water outlet of the wet desulphurization recirculating pump, the feed water inlet of the wet desulphurization recirculating pump with
The bottom end on the absorption tower connects, for extracting the recirculated water after desulfurization；
The washing depth dust pelletizing system is located above the wet desulfurization system, includes outlet demisting from top to bottom
Device, the second washing spraying layer, entrance demister, circulating water pool and circulating water pool spill box；The outlet demister and entrance remove
Day with fog is located at the upper and lower ends of the washing depth dust pelletizing system, is arranged between the entrance demister and the outlet demister
There is the second washing spraying layer；The bottom of the circulating water pool is connected with outlet mist eliminator flushing water pump, and by exporting demister
Flush water pump and its pipeline are connected to outlet demister and the second washing spraying layer；The left upper portion of the circulating water pool is by setting
Overflow pipe is set with the circulating water pool spill box to be connected；The bottom of the circulating water pool spill box is connected with the punching of entrance demister
Wash water pumps, and is connected to entrance demister by entrance mist eliminator flushing water pump and its pipeline.
Further, the washing depth dust pelletizing system further includes that the recirculated water being obliquely installed in the height direction is collected
Slot, the cycle water collecting groove are located between the entrance demister and the second washing spraying layer, and the recirculated water is collected
The bottom end outlet of slot is connected to the circulating water pool by pipeline.
Further, the washing depth dust pelletizing system further includes water film dedusting layer, and the water film dedusting layer is located at described
It recycles between water collecting groove and the second washing spraying layer.
Further, it is provided with the nozzle being evenly arranged on the first washing spraying layer, the nozzle number is 2-8
It is a, preferably 4；The nozzle being evenly arranged is provided on the second washing spraying layer, the nozzle number is 2-8, excellent
It is selected as 4.
Further, Fresh process water supply port is also associated at the top of the circulating water pool.
Further, it is additionally provided with cooling heat exchanger in the circulating water pool.
Further, oxidation spray gun is equipped in the absorb the bottom of the tower stock tank, for spraying absorption tower described in air oxidation
Inferior sulfate radical in the stock tank of bottom；The oxidation spray gun is equipped with 4-8, preferably 4；The position of the oxidation spray gun is same
Highly, the oxidation spray gun is set to the surrounding in absorption tower wet desulfurization system region, two neighboring oxidation spray gun at equal intervals
The angle formed with the same horizontal position absorption tower center of circle is 90 degree.
The utility model compared with prior art, has the advantage that and has the beneficial effect that：
（1）High-effective dust-removing and device for reclaiming moisture provided by the utility model, the device include absorption tower and described
The wet desulfurization system and washing depth dust pelletizing system that flow of flue gas direction is set gradually in absorption tower；Flue gas enters absorption tower,
After wet desulfurization system is first passed through to flue gas desulfurization, washing depth dust pelletizing system is entered back into, deep clean washing is carried out to flue gas,
The dissolving salinity for reducing the dust concentration in flue gas, exporting droplet；Simultaneously by the cooling heat exchanger in circulating water pool, reduce
Circulating water temperature realizes the recycling of moisture in flue gas, and the present apparatus is to S0 to reduce flue-gas temperature indirectly2And S03Equally
There is good removal effect；It finally enters chimney and realizes clean emission, realize effective recycling of high-effective dust-removing and moisture；
（2）By the way that oxidation spray gun is arranged so that S0 during desulfurization and dedusting2It can be further converted to S03,
Due to S03High-dissolvability, greatly reduce S0 in tail gas after being dissolved in water2Discharge；
（3）Water film dedusting layer can preferably retain the moisture in flue gas, and what is be arranged below connect with circulating water pool
Cycle water collecting groove makes better use of the moisture of recycling, and the utilization ratio of water is also improved while water-saving.
Description of the drawings
Fig. 1 is the structural schematic diagram of a kind of high-effective dust-removing and device for reclaiming moisture provided by the utility model；
Figure label：The absorption towers 1-；The absorption towers 11- entrance；2- wet desulfurization systems；21- first washes spraying layer；22-
Wet desulphurization recirculating pump；3- washes depth dust pelletizing system；31- circulating water pool spill boxes；32- cooling heat exchangers；33- second is washed
Spraying layer；34- recycles water collecting groove；35- water film dedusting layers；36- circulating water pools；37- exports mist eliminator flushing water pump；38- enters
Mouth mist eliminator flushing water pump；39- Fresh process water supply ports；4- oxidation spray guns；5- entrance demisters；6- exports demister.
Specific implementation mode
In order to deepen the understanding to the utility model, below in conjunction with the drawings and specific embodiments to the utility model make into
One step is described in detail：
Fig. 1 is the structural schematic diagram of a kind of high-effective dust-removing and device for reclaiming moisture, and hollow arrow direction is flue gas in figure
Flow direction.As shown in Figure 1, the high-effective dust-removing and device for reclaiming moisture, including absorption tower 1, wet desulfurization system 2 and washing
Depth dust pelletizing system 3；The wet desulfurization system 2 and the washing depth dust pelletizing system 3 are interior along flue gas stream on the absorption tower 1
Dynamic direction is set gradually；The wet desulfurization system 2 includes the first washing spraying layer 21 and wet desulphurization recirculating pump from top to bottom
22；The feed pipe of the first washing spraying layer 21 is connect with the water outlet of the wet desulphurization recirculating pump 22, and the wet method is de-
The feed water inlet of sulfur cycle pump 22 is connect with the bottom end on the absorption tower 1, for extracting the recirculated water after desulfurization；Flue gas to be clean
It is realized to S0 by the washing of slurries by wet desulfurization system 22And S03Removing, while part dust can be also removed；
3 system of washing depth dedusting is located at 2 top of the wet desulfurization system, includes outlet demister 6, second from top to bottom
Wash spraying layer 33, entrance demister 5, circulating water pool 36 and circulating water pool spill box 31；The outlet demister 6 and entrance remove
Day with fog 5 is located at the upper and lower ends of the washing depth dust pelletizing system 3, between the entrance demister 5 and the outlet demister 6
It is provided with the second washing spraying layer 33；The bottom of the circulating water pool is connected with outlet mist eliminator flushing water pump 37, and by going out
Mouth mist eliminator flushing water pump and its pipeline are connected to outlet demister 6 and second and wash spraying layer 33；The circulating water pool 36
Left upper portion is connected by the way that overflow pipe is arranged with the circulating water pool spill box 31, and the excessive moisture recycled from flue gas passes through
Overflow pipe enters circulating water pool spill box 31；The bottom of the circulating water pool spill box 31 is connected with entrance mist eliminator flushing water pump
38, and entrance demister 5 is connected to by entrance mist eliminator flushing water pump and its pipeline；Due to slurries by flue gas by when take
Band can increase part dust carrying amount, be respectively provided with demister at the entrance and exit of washing depth dust pelletizing system 3, entrance removes
Day with fog 5 can reduce total solid content of dedusting section, and outlet demister 6 can reduce the total drop discharge concentration of device.
Further, the washing depth dust pelletizing system 3 further includes that the recirculated water being obliquely installed in the height direction is collected
Slot 34, the cycle water collecting groove are located between the entrance demister and the second washing spraying layer, and the recirculated water is received
The bottom end outlet of collection slot is connected to the circulating water pool 36 by pipeline；Water collecting groove 34, which is recycled, by arrangement is recycled to recirculated water
The separation of dedusting and desulfurization slurry may be implemented in the setting in pond 36, cycle water collecting groove 34, to improve the profit of recirculated water
With rate；The water of circulating water pool 36 can also be to uses such as absorption tower demisting device, pipe flushings by the water circulation use of dedusting section.
Further, the washing depth dust pelletizing system 3 further includes water film dedusting layer 35, and the water film dedusting layer 35 is located at
Between the cycle water collecting groove 34 and the second washing spraying layer 33；Water film dedusting layer is to impact dedusting using dusty gas
Moisture film caused by ad hoc approach is used on device inner wall or other special components, so that dust is captured by moisture film, gas is purified net
Change equipment, operation principle is：Dusty gas enters from water film dedusting layer lower part, and water film dedusting layer specific surface area is very big, at it
Surface is covered with one layer of moisture film continuously to fall, and dust is captured by moisture film, to reach very high dust removing effects；Water washing efficient removes
Dirt section utilizes spray washing and liquid film dedusting economic benefits and social benefits principle, improves dust removal efficiency, and water film dedusting layer 35 can be according to actually removing
Dirt requires and spray flux size determines whether to be arranged.
Further, it is provided with the nozzle being evenly arranged on the first washing spraying layer 21, the nozzle number is 4
It is a, it is opening down；The nozzle being evenly arranged is provided on the second washing spraying layer 33, the nozzle number is 4, opening
Downward.
Further, the top of the circulating water pool 36 is also associated with Fresh process water supply port 39；By in device
The slurry of flue gas and demister is recycled using internal, external complement fresh water, and the water in the present apparatus can be sent to front end
Wet desulphurization demisting is rinsed.
Further, it is provided with cooling heat exchanger 32 in the circulating water pool 36；Pass through the low-temperature receivers pair such as demineralized water or seawater
Recirculated water in circulating water pool cools down, and recirculated water after cooling is sprayed by the nozzle of the second washing spraying layer 33 and flue gas
Counter current contacting reduces exhaust gas temperature, to reduce the moisture in flue gas, realizes the moisture recycling in flue gas.
Further, in 1 bottom stock tank of the absorption tower equipped with oxidation spray gun 4 absorption is aoxidized for spraying air
Inferior sulfate radical in 1 bottom stock tank of tower.
Flue gas enters absorption tower 1, and wet desulfurization system 2 is first passed through after absorption tower entrance 11, enters back into washing depth and removes
Dirt system 3 carries out deep clean washing to flue gas, the dissolving salinity for reducing the dust concentration in flue gas, exporting droplet, simultaneously
By the cooling heat exchanger 32 in circulating water pool 36, circulating water temperature is reduced, to reduce flue-gas temperature indirectly, is realized in flue gas
The recycling of moisture, oxidation spray gun can effectively remove SO2And S03, realize high-effective dust-removing and moisture recycling.
By the way that after wet desulfurization system 2, on the one hand setting washing depth dust pelletizing system 3 can continue catching portion
On the other hand dust can be such that dust-containing liquid drips and be diluted, finally captured in flue gas by the outlet demister 6 in exit again
Droplet can reduce the dust carrying amount in flue gas so that flue gas obtains advanced treating；Solving normal wet desulfurization can not be real
Existing dust is up to standard or even the technical barrier of minimum discharge, can significantly reduce investment outlay, save the area, will not be made to system operation
At influence, can work under any operating mode.
The utility model and its specific implementation mode are described above, finally it should be noted that：The above embodiment
Or embodiment is not the exhaustion of specific implementation mode, above-described embodiment is intended to indicate that the utility model, and unrestricted reality
The principles of the present invention and spirit are not being departed from novel protection domain for the ordinary skill in the art
In the case of, a variety of change, modification, replacement and modification can be carried out to these specific implementation modes or embodiment, these without
Performing creative labour and design and the same or analogous structure of the technical program, device, equipment or product and its application method
And/or purposes, it should all cover and be within the protection scope of the utility model.
Claims (7)
1. a kind of high-effective dust-removing and device for reclaiming moisture, it is characterised in that：Including absorption tower, wet desulfurization system and washing depth
Dust pelletizing system；The wet desulfurization system and the washing depth dust pelletizing system in the absorption tower along flow of flue gas direction according to
Secondary setting；
The wet desulfurization system includes the first washing spraying layer and wet desulphurization recirculating pump from top to bottom；First water washing spray
The feed pipe of drenching layer is connect with the water outlet of the wet desulphurization recirculating pump, the feed water inlet of the wet desulphurization recirculating pump with it is described
The bottom end on absorption tower connects, for extracting the recirculated water after desulfurization；
The washing depth dust pelletizing system is located above the wet desulfurization system, includes outlet demister, the from top to bottom
Two washing spraying layers, entrance demister, circulating water pool and circulating water pool spill box；The outlet demister and entrance demister position
In the upper and lower ends of the washing depth dust pelletizing system, second is provided between the entrance demister and the outlet demister
Wash spraying layer；The bottom of the circulating water pool is connected with outlet mist eliminator flushing water pump, and by exporting mist eliminator flushing water
Pump and its pipeline are connected to outlet demister and the second washing spraying layer；The left upper portion of the circulating water pool is by being arranged overflow
Pipe is connected with the circulating water pool spill box；The bottom of the circulating water pool spill box is connected with entrance mist eliminator flushing water
Pump, and entrance demister is connected to by entrance mist eliminator flushing water pump and its pipeline；
Wherein, the circulating water pool and circulating water pool spill box are the different babinet of two effects and pass through pipeline unicom, institute
State between circulating water pool and circulating water pool spill box that there are differences in height；It is provided with cooling heat exchanger in the circulating water pool.
2. high-effective dust-removing as described in claim 1 and device for reclaiming moisture, it is characterised in that：The washing depth dust pelletizing system
Further include the cycle water collecting groove being obliquely installed in the height direction, the cycle water collecting groove be located at the entrance demister with
Between the second washing spraying layer, the bottom end outlet of the cycle water collecting groove is connected to the circulating water pool by pipeline.
3. high-effective dust-removing as described in claim 1 and device for reclaiming moisture, it is characterised in that：The washing depth dust pelletizing system
Further include water film dedusting layer, the water film dedusting layer is located between cycle water collecting groove and the second washing spraying layer.
4. high-effective dust-removing as described in claim 1 and device for reclaiming moisture, it is characterised in that：Connect at the top of the circulating water pool
It is connected to Fresh process water supply port.
5. high-effective dust-removing as described in claim 1 and device for reclaiming moisture, it is characterised in that：In the absorb the bottom of the tower stock tank
Equipped with oxidation spray gun, for spraying the inferior sulfate radical in absorb the bottom of the tower stock tank described in air oxidation.
6. high-effective dust-removing as described in claim 1 and device for reclaiming moisture, it is characterised in that：On the first washing spraying layer
It is provided with the nozzle being evenly arranged, the nozzle number is 2-8.
7. high-effective dust-removing as described in claim 1 and device for reclaiming moisture, it is characterised in that：On the second washing spraying layer
It is provided with the nozzle being evenly arranged, the nozzle number is 2-8.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720899376.XU CN207822701U (en) | 2017-07-24 | 2017-07-24 | A kind of high-effective dust-removing and device for reclaiming moisture |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720899376.XU CN207822701U (en) | 2017-07-24 | 2017-07-24 | A kind of high-effective dust-removing and device for reclaiming moisture |
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| CN207822701U true CN207822701U (en) | 2018-09-07 |
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| CN201720899376.XU Active CN207822701U (en) | 2017-07-24 | 2017-07-24 | A kind of high-effective dust-removing and device for reclaiming moisture |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107185329A (en) * | 2017-07-24 | 2017-09-22 | 北京国电龙源环保工程有限公司 | A kind of high-effective dust-removing and device for reclaiming moisture |
| CN108970370A (en) * | 2018-10-09 | 2018-12-11 | 杭州蕴泽环境科技有限公司 | It is a kind of low cost flue gas device for deep cleaning and its purification receive water eliminating white smoke technique |
| CN112495113A (en) * | 2020-12-14 | 2021-03-16 | 北京首钢国际工程技术有限公司 | High-efficient purifier who contains wet flue gas |
| CN114870609A (en) * | 2022-04-21 | 2022-08-09 | 新疆大学 | Device for removing SO2 in flue gas by using aeration method |
| CN118001876A (en) * | 2024-01-24 | 2024-05-10 | 湖南清源华建环境科技有限公司 | Dust removing device for superheated steam drying system |
-
2017
- 2017-07-24 CN CN201720899376.XU patent/CN207822701U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107185329A (en) * | 2017-07-24 | 2017-09-22 | 北京国电龙源环保工程有限公司 | A kind of high-effective dust-removing and device for reclaiming moisture |
| CN108970370A (en) * | 2018-10-09 | 2018-12-11 | 杭州蕴泽环境科技有限公司 | It is a kind of low cost flue gas device for deep cleaning and its purification receive water eliminating white smoke technique |
| CN112495113A (en) * | 2020-12-14 | 2021-03-16 | 北京首钢国际工程技术有限公司 | High-efficient purifier who contains wet flue gas |
| CN114870609A (en) * | 2022-04-21 | 2022-08-09 | 新疆大学 | Device for removing SO2 in flue gas by using aeration method |
| CN118001876A (en) * | 2024-01-24 | 2024-05-10 | 湖南清源华建环境科技有限公司 | Dust removing device for superheated steam drying system |
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Address after: 100039 room 901, 9 / F, building 1, yard 16, West Fourth Ring Middle Road, Haidian District, Beijing Patentee after: Guoneng Longyuan environmental protection Co.,Ltd. Address before: 100039 room 911, 1 building, 16 West Fourth Ring Road, Haidian District, Beijing. Patentee before: BEIJING GUODIAN LONGYUAN ENVIRONMENTAL ENGINEERING Co.,Ltd. |