CN209438345U - The device of sulfur dioxide in a kind of efficient removal coal-fired flue-gas - Google Patents
The device of sulfur dioxide in a kind of efficient removal coal-fired flue-gas Download PDFInfo
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- CN209438345U CN209438345U CN201822216781.4U CN201822216781U CN209438345U CN 209438345 U CN209438345 U CN 209438345U CN 201822216781 U CN201822216781 U CN 201822216781U CN 209438345 U CN209438345 U CN 209438345U
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Abstract
The device of sulfur dioxide in a kind of efficient removal coal-fired flue-gas, it is characterised in that: it includes the desulfurizing tower being sequentially connected by pipeline, slurries oxidation pond, serum recycle pond, slurry circulating pump and the fresh desulfurization agent feeding device being connected with serum recycle pond；The inside of the desulfurizing tower sets gradually flue gas flow equalizing orifice plate, slurries spraying layer, high efficiency demister from former gas inlet between neat stress outlet；The slurries spraying layer in desulfurizing tower is accessed in the serum recycle pond by slurry circulating pump and corresponding pipeline；The slurries oxidation bottom of pond portion is successively connected with cyclone, vacuum strainer machine by slurry discharge pump, corresponding pipeline, and the slurries oxidation pond is connected with oxidation fan by corresponding pipeline.
Description
Technical field
The utility model relates to environmental technology field, sulfur dioxide in a kind of efficient removal coal-fired flue-gas is particularly related to
Device.
Background technique
In recent years, there is more serious atmosphere pollution phenomenon in many cities in China, life and health to city dweller
It causes to seriously endanger.Pollutant contained by coal-fired flue-gas is the important sources of atmosphere pollution, sulfur dioxide and nitrogen in coal-fired flue-gas
Oxide is the main reason for causing acid rain, while playing an important role to the formation of haze.Therefore, the Chinese government is just gradually real
The stringenter coal-fired flue-gas discharge standard of row must reach ultra-clean discharge in power domain coal-fired flue-gas pollutant of carrying out in an all-round way
(the ultra-clean limited value of discharge standard of power domain coal-burning boiler sulfur dioxide is 35mg/Nm to standard3), it is done step-by-step in non-electrical domain
Coal-fired flue-gas pollutant reaches ultra-clean discharge standard.
Coal-fired flue gas desulfurization technology mainly has desulfurization method of limestone-gypsum technology, seawater Wet Flue Gas Desulfurization Technique, the ammonia process of desulfurization
Technology and circulating fluid bed semi-drying method desulfurization technology etc., wherein desulfurization method of limestone-gypsum technique has technology maturation, operation steady
The advantages that determining is China coal-fired flue gas desulfurization field using most sulfur removal technologies.
With the stringenter coal-fired flue-gas pollutant emission standard of execution, conventional desulfurization method of limestone-gypsum technique
It is difficult to reach the requirement of ultra-clean discharge standard.On the basis of conventional limestone-gypsum sulfur removal technology, to reach coal-fired cigarette
The ultra-clean discharge standard of gas, currently used technical solution are to design desulfurizing tower in sulfur removal technology using two-region, i.e., double pH values
Double circulation desulphurization system, flue gas initially enter the first desulfurization zone after entering desulfurizing tower, the desulfurization slurry pH value in the first desulfurization zone
Lower, most of sulfur dioxide is removed in flue gas, and then flue gas enters the second desulfurization zone, in the second desulfurization zone desulfurization slurry PH
Value is higher, has stronger desulphurizing ability, realizes flue gas deep desulfuration, reaches the ultra-clean discharge standard of flue gas.It applies for a patent
CN202700364U is described a kind of " Two-way Cycle single column desulphurization system ", which realizes double pH value double circulation desulphurizations, desulfurization
Tower is designed using two-region, desulfuration efficiency with higher, but tower body internal structure is complicated, and equipment operation failure rate is higher, fortune
Row maintenance cost is larger.Apply for a patent CN102921287A, describe it is a kind of " double tower Two-way Cycle Wet Limestone Desulfurization device and
Method ", the system are provided with primary cycle desulfurizing tower and secondary cycle desulfurizing tower, realize double pH value double circulation desulphurizations, Ke Yida
To preferable desulfurization effect, but bulk devulcanization system complex, there are two desulfurizing tower and two sets of desulfurization slurry circulatory systems for setting, if
Standby arrangement land occupation is larger, and equipment investment and operation expense are significantly higher.
Summary of the invention
The purpose of this utility model be exactly the shortcoming being directed in the presence of the above-mentioned prior art and provide it is a kind of efficiently
Remove the device of sulfur dioxide in coal-fired flue-gas.The utility model has the function of good deep desulfuration, can strictly reach combustion
The ultra-clean discharge standard of flue-gas.Bulk devulcanization system and desulfurizing tower internal structure are relatively simple, equipment investment and operating cost compared with
It is low, it is highly-safe, it is easy to maintain；Mark and reducing energy consumption project are mentioned to desulfurization, downtime is short, and improvement expenses are low, suitable to coal quality
Answering property is stronger.
The purpose of this utility model can be realized by following technique measures:
In the efficient removal coal-fired flue-gas of the utility model the device of sulfur dioxide include be sequentially connected by pipeline it is de-
Sulphur tower, slurries oxidation pond, serum recycle pond, slurry circulating pump and the fresh desulfurizing agent supply dress being connected with serum recycle pond
It sets；The inside of the desulfurizing tower sets gradually flue gas flow equalizing orifice plate, slurries spray from original gas inlet to neat stress between outlet
Layer, high efficiency demister；The slurries spray in desulfurizing tower is accessed in the serum recycle pond by slurry circulating pump and corresponding pipeline
Layer；The slurries oxidation bottom of pond portion is successively connected with cyclone, vacuum strainer machine by slurry discharge pump and corresponding pipeline, and
The slurries oxidation pond is connected with oxidation fan by corresponding pipeline.
Slurries spraying layer described in the utility model can be set 2 ~ 5 layers.
Slurries oxidation pond described in the utility model are respectively set with serum recycle pond, and slurries oxidation pond is arranged in desulfurizing tower
Lower part, serum recycle pond is arranged in the outside of desulfurizing tower, and the liquid outlet of slurries oxidation pond passes through slurry feeding pump and corresponding
Pipeline be connected with the inlet in serum recycle pond；Slurries oxidation pond blender, serum recycle pond are provided in slurries oxidation pond
Inside it is provided with serum recycle pond blender.
Slurries oxidation pond described in the utility model are respectively set with serum recycle pond, slurries oxidation pond and serum recycle pond
8 are arranged at outside desulfurizing tower, and the liquid level of slurry of slurries oxidation pond is lower than the bottom of desulfurizing tower；The slurries oxidation pond and slurry
Liquid circulatory pool 8 is disposed adjacent and is equipped with public pool side；And the top of the public pool side between slurries oxidation pond and serum recycle pond
It is provided with interconnected overflow groove；Slurries oxidation pond blender, setting in serum recycle pond 8 are provided in slurries oxidation pond
There is serum recycle pond blender.
A kind of processing step of the utility model is as follows:
A, former flue gas flows up after entering desulfurizing tower from former gas inlet, first by flue gas flow equalizing orifice plate, promotes cigarette
Flow of air is more uniform, meanwhile, desulfurization slurry liquid film is covered with above flue gas flow equalizing orifice plate, when flue gas passes through flue gas flow equalizing orifice plate
Across desulfurization slurry liquid film, has the function of pre- desulfurization and dedusting to flue gas；Then, flue gas, which continues up, flows into desulfurization slurry spray
Drench area, slurries spraying layer desulfurization slurry is atomized after to lower spray, contacted with the flue gas adverse current flowed up, the SO in flue gas2
It is desulfurized slurries droplet to fully absorb and reach deep desulfuration, desulfurization slurry droplet absorbs SO2Afterwards, it is passed down through flue gas flow equalizing
Orifice plate falls into slurries oxidation pond；Flue gas enters high efficiency demister after desulfurization slurry spraying zone deep desulfuration, through efficient demisting
Device forms neat stress after sufficiently removing the tiny desulfurization slurry droplet carried in flue gas, and then neat stress is exported from neat stress and is discharged
Desulfurizing tower；
B, desulfurization slurry droplet absorbs SO in flue gas2After fall into slurries oxidation pond, meanwhile, oxidation fan send oxidation air
Enter slurries oxidation pond；It is provided with slurries oxidation pond blender in slurries oxidation pond, promotes desulfurization slurry and oxidation air sufficiently mixed
It closes, occurs to force oxidation reaction；Plasm PH value in slurries oxidation pond is 5.0~6.0, which is conducive to the desulfurization slurry Central Asia
The dissolution and oxidation of calcium sulfate and the gypsum for generating high-quality, i.e. CaSO4·2H2O crystal；Due to CaSO4·2H2The ratio of O crystal
Weight is larger, forms thick slurry in slurries oxidation pond lower part, thick slurry drains into cyclone through slurry discharge pump, passes through cyclone
It is sent again after concentration to vacuum strainer machine, finally formed solids is desulfurized gypsum；
The upper clear supernate of c slurries oxidation pond is sent by slurry feeding pump to serum recycle pond, meanwhile, fresh desulfurizing agent supply
Fresh desulfurizer slurry is added into serum recycle pond for device；It is provided with serum recycle pond blender in serum recycle pond, promotes
Fresh desulfurizer slurry is sufficiently mixed with slurries in pond, and the higher fresh desulfurizer slurry of pH value promotes the slurry in serum recycle pond
Liquid pH value is significantly raised；The high pH value desulfurization slurry in serum recycle pond pumps the spray of the slurries to desulfurizing tower by serum recycle
Layer, slurries spraying layer, to lower spray, will contact after the atomization of high pH value desulfurization slurry with the flue gas adverse current flowed up, strong to strengthen
Desulfurization slurry droplet is to SO in flue gas2Quick absorption, achieve the effect that flue gas deep desulfuration；Meanwhile desulphurization system liquid gas
It is smaller, hence it is evident that the energy consumption for reducing slurry circulating pump effectively reduces the operating cost of desulphurization system, and desulphurization system is more energy saving；
Flue gas enters high efficiency demister after deep desulfuration, the tiny desulfurization slurry droplet through carrying in high efficiency demister removing flue gas
After form neat stress, then neat stress from neat stress export discharge desulfurizing tower.
Another processing step of the utility model is as follows:
A, former flue gas flows up after entering desulfurizing tower from former gas inlet, first by flue gas flow equalizing orifice plate, promotes cigarette
Flow of air is more uniform, meanwhile, desulfurization slurry liquid film is covered with above flue gas flow equalizing orifice plate, when flue gas passes through flue gas flow equalizing orifice plate
Across desulfurization slurry liquid film, has the function of pre- desulfurization and dedusting to flue gas；Then, flue gas, which continues up, flows into desulfurization slurry spray
Drench area, slurries spraying layer desulfurization slurry is atomized after to lower spray, contacted with the flue gas adverse current flowed up, the SO in flue gas2
It is desulfurized slurries droplet to fully absorb and reach deep desulfuration, desulfurization slurry droplet absorbs SO2Afterwards, it is passed down through flue gas flow equalizing
Orifice plate falls into the bottom of desulfurizing tower, then enters slurries oxidation pond through the gravity flow of slurries pipe gravity flow pipeline；Flue gas is sprayed by desulfurization slurry
Enter high efficiency demister after drenching area's deep desulfuration, the tiny desulfurization slurry droplet carried in flue gas is sufficiently removed through high efficiency demister
After form neat stress, then neat stress from neat stress export discharge desulfurizing tower；
B, the desulfurization slurry of desulfurization tower bottom enters slurries oxidation pond through the gravity flow of slurries pipe gravity flow pipeline, meanwhile, oxidation fan
Oxidation air is sent into slurries oxidation pond；It is provided with slurries oxidation pond blender in slurries oxidation pond, promotes desulfurization slurry and oxygen
Change air to be sufficiently mixed, occurs to force oxidation reaction；Plasm PH value in slurries oxidation pond is 5.0~6.0, which is conducive to
The dissolution and oxidation of desulfurization slurry sulfite calcium and the gypsum for generating high-quality, i.e. CaSO4·2H2O crystal；Due to CaSO4·
2H2The specific gravity of O crystal is larger, forms thick slurry in slurries oxidation pond lower part, thick slurry drains into eddy flow through slurry discharge pump
Device is sent after being concentrated by cyclone again to vacuum strainer machine, and finally formed solids is desulfurized gypsum；
C, slurries oxidation pond is disposed adjacent with serum recycle pond and is equipped with public pool side, is provided with overflow at the top of public pool side
Square hole, the upper clear supernate of slurries oxidation pond cross the gravity flow of the square hole at the top of public pool side and enter serum recycle pond, meanwhile, it is fresh de-
Fresh desulfurizer slurry is added into serum recycle pond for sulphur agent feeding device；The stirring of serum recycle pond is provided in serum recycle pond
Device promotes fresh desulfurizer slurry to be sufficiently mixed with slurries in pond, and the higher fresh desulfurizer slurry of pH value promotes serum recycle
Plasm PH value in pond is significantly raised；The high pH value desulfurization slurry in serum recycle pond is pumped by serum recycle to desulfurizing tower
Slurries spraying layer, slurries spraying layer, to lower spray, will contact after the atomization of high pH value desulfurization slurry with the flue gas adverse current flowed up,
Effectively desulfurization slurry droplet is enhanced to SO in flue gas2Quick absorption, achieve the effect that flue gas deep desulfuration；Meanwhile desulfurization
System liquid gas is smaller, hence it is evident that the energy consumption for reducing slurry circulating pump effectively reduces the operating cost of desulphurization system, and desulphurization system is more
Supernumerary segment energy.Flue gas enters high efficiency demister after deep desulfuration, the tiny desulfurization through carrying in high efficiency demister removing flue gas
Neat stress is formed after slurries droplet, then neat stress exports discharge desulfurizing tower from neat stress.
The beneficial effects of the utility model are as follows:
First, slurries oxidation pond is respectively set with serum recycle pond, the pressure oxidation reaction of desulfurization slurry is arranged in pH value
It is completed in lower slurries oxidation pond.PH value has a significant impact to the tool that carries out of oxidation reaction, and the utility model will be forced to aoxidize
Process, which is arranged in the slurries oxidation pond that plasm PH value is 5.0~6.0, to be completed, the CaSO in this pH range3·1/2H2O is molten
Xie Du is larger, oxidation rate is very fast, meanwhile, the CaSO in this pH range3·1/2H2O generates SO almost without decomposition2, have
It is gone on smoothly conducive to the pressure oxidation reaction of desulfurization slurry, generates oxidation reaction product-gypsum (CaSO of high-quality4·2H2O
Crystal).
Second, the pH value of fresh desulfurizer slurry is higher, fresh desulfurizer slurry required for desulphurization system is all added
To serum recycle pond, the plasm PH value in serum recycle pond is caused to be apparently higher than the plasm PH value in slurries oxidation pond, slurries follow
The high pH value desulfurization slurry of cisterna ambiens is pumped by serum recycle to slurries spraying layer in desulfurizing tower, to meet the spray of slurries spraying layer
Desulfurization slurry droplet pH value with higher out, effectively enhances desulfurization slurry droplet to SO in flue gas2Quick absorption, reach
To the purpose of deep desulfuration；Meanwhile desulphurization system liquid-gas ratio is smaller, hence it is evident that the energy consumption for reducing slurry circulating pump effectively reduces de-
The operating cost of sulphur system reaches the energy-efficient purpose of desulphurization system.
Third, desulphurization system and desulfurizing tower internal structure are relatively simple, equipment investment is lower, operational safety, easy to maintain；
Mark mentioned for desulfurization and reducing energy consumption project facilitates feasible, former desulfurizing tower tower body height and tower internal component do not change substantially,
Slurries oxidation pond and serum recycle pond are respectively set, corresponding connecting pipe transformation is carried out, high pH value desulfurization slurry can be realized
The purpose of sulfur dioxide in coal-fired flue-gas is removed in depth in liquid, reaches the ultra-clean discharge national standard of coal-fired flue-gas.
Detailed description of the invention
Fig. 1 is the principle assumption diagram of the first embodiment of the utility model.
Fig. 2 is the principle assumption diagram of the second embodiment of the utility model.
In figure mutually: 1- desulfurizing tower, the outlet of 2- neat stress, 3- high efficiency demister, 4- slurries spraying layer, the conveying of 5- slurries
Pump, the fresh desulfurization agent feeding device of 6-, 7- slurry circulating pump, 8- serum recycle pond, 9- serum recycle pond blender, 10- oxidation
Blower, 11- slurries oxidation pond, 12- slurries oxidation pond blender, 13- slurry discharge pump, 14- original gas inlet, 15- flue gas are equal
Discharge orifice plate, 16- vacuum strainer machine, 17- cyclone.
Specific embodiment
The utility model is further described below with reference to embodiment (attached drawing):
Embodiment 1
As shown in Figure 1, in the efficient removal coal-fired flue-gas of the utility model sulfur dioxide device include by pipeline according to
Secondary connected desulfurizing tower 1, slurries oxidation pond 11, serum recycle pond 8, slurry circulating pump 7 and it is connected with serum recycle pond 8
Fresh desulfurization agent feeding device 6；The inside of the desulfurizing tower 1 is set gradually from former gas inlet 14 between neat stress outlet 2
Flue gas flow equalizing orifice plate 15, slurries spraying layer 4, high efficiency demister 3；The serum recycle pond 8 is by slurry circulating pump 7 and accordingly
Pipeline access desulfurizing tower 1 in slurries spraying layer 4；11 bottom of slurries oxidation pond by slurry discharge pump 13, pipeline according to
It is secondary to be connected with cyclone 17, vacuum strainer machine 16, and the slurries oxidation pond 11 is connected with oxidation fan by corresponding pipeline
10。
Slurries spraying layer described in the utility model can be set 2 to 5 layers.
Slurries oxidation pond described in the utility model 11 are respectively set with serum recycle pond 8, and the setting of slurries oxidation pond 11 exists
The outside of desulfurizing tower 1 is arranged in the lower part of desulfurizing tower 1, serum recycle pond 8, and the liquid outlet of slurries oxidation pond 11 is conveyed by slurries
Pump 5 and corresponding pipeline are connected with the inlet in serum recycle pond 8；The stirring of slurries oxidation pond is provided in slurries oxidation pond 11
Device 12 is provided with serum recycle pond blender 9 in serum recycle pond 8.
Technical process suitable for embodiment 1 is as follows: former flue gas from former gas inlet 14 enter desulfurizing tower 1 after Xiang Shangliu
It is dynamic, first by flue gas flow equalizing orifice plate 15, promote flow of flue gas more uniform, meanwhile, it is covered with above flue gas flow equalizing orifice plate 15
Desulfurization slurry liquid film, flue gas pass through desulfurization slurry liquid film when passing through flue gas flow equalizing orifice plate 15, have pre- desulfurization and dedusting function to flue gas
Energy；Then, flue gas, which continues up, flows into desulfurization slurry spraying zone, slurries spraying layer 4 desulfurization slurry is atomized after to lower spray
Leaching, contacts, the SO in flue gas with the flue gas adverse current flowed up2Slurries droplet is desulfurized to fully absorb and reach deep desulfuration,
Desulfurization slurry droplet absorbs SO2Afterwards, it is passed down through flue gas flow equalizing orifice plate 15 and falls into slurries oxidation pond 11；Flue gas passes through desulfurization slurry
Enter high efficiency demister 3 after spraying zone deep desulfuration, the tiny desulfurization slurry through carrying in high efficiency demister 3 sufficiently removing flue gas
Neat stress is formed after droplet, then desulfurizing tower 1 is discharged from neat stress outlet 2 in neat stress.
Desulfurization slurry droplet absorbs SO in flue gas2After fall into slurries oxidation pond 11, meanwhile, oxidation fan 10 is by oxidation air
It is sent into slurries oxidation pond 11；It is provided with slurries oxidation pond blender 12 in slurries oxidation pond 11, promotes desulfurization slurry and oxidation empty
Gas is sufficiently mixed, and occurs to force oxidation reaction；Plasm PH value in slurries oxidation pond 11 is 5.0~6.0, which is conducive to take off
The dissolution and oxidation of sulphur slurries sulfite calcium and the gypsum (CaSO for generating high-quality4·2H2O crystal).Due to CaSO4·
2H2The specific gravity of O crystal is larger, forms thick slurry in 11 lower part of slurries oxidation pond, thick slurry is drained into through slurry discharge pump 13
Cyclone 17 is sent after being concentrated by cyclone 17 again to vacuum strainer machine 16, and finally formed solids is desulfurized gypsum.
The upper clear supernate of slurries oxidation pond 11 is sent by slurry feeding pump 5 to serum recycle pond 8, meanwhile, fresh desulfurizing agent
Fresh desulfurizer slurry is added into serum recycle pond 8 for feedway 6；The stirring of serum recycle pond is provided in serum recycle pond 8
Device 9 promotes fresh desulfurizer slurry to be sufficiently mixed with slurries in pond, and the higher fresh desulfurizer slurry of pH value promotes serum recycle
Plasm PH value in pond 8 is significantly raised；The high pH value desulfurization slurry in serum recycle pond 8 is sent by slurry circulating pump 7 to desulfurizing tower 1
Interior slurries spraying layer 4, slurries spraying layer 4 high pH value desulfurization slurry is atomized after to lower spray, it is inverse with the flue gas that flows up
Stream contact, effectively enhances desulfurization slurry droplet to SO in flue gas2Quick absorption, achieve the effect that flue gas deep desulfuration；Together
When, desulphurization system liquid-gas ratio is smaller, hence it is evident that the energy consumption for reducing slurry circulating pump effectively reduces the operating cost of desulphurization system, takes off
Sulphur system is more energy saving.Flue gas enters high efficiency demister 3 after deep desulfuration, removes in flue gas and carries through high efficiency demister 3
Tiny desulfurization slurry droplet after form neat stress, then neat stress from neat stress outlet 2 discharge desulfurizing towers 1.
Embodiment 2
As shown in Fig. 2, the present embodiment difference from example 1 is that: the slurries oxidation pond 11 is arranged in desulfurization
Outside tower 1, and the liquid level of slurry of slurries oxidation pond 11 is lower than the bottom of desulfurizing tower 1；The slurries oxidation pond 11 and serum recycle
Pond 8 is disposed adjacent and is equipped with public pool side；And the top setting of the public pool side between slurries oxidation pond 11 and serum recycle pond 8
There is interconnected overflow groove.The present embodiment effectively reduces the equipment whole height of desulfurizing tower 1, is especially suitable for small exhaust gas volumn
Sulfur removal technology.
As follows suitable for 2 technical process of embodiment: former flue gas flows up after entering desulfurizing tower 1 from former gas inlet 14,
First by flue gas flow equalizing orifice plate 15, promote flow of flue gas more uniform, meanwhile, desulfurization is covered with above flue gas flow equalizing orifice plate 15
Slurries liquid film, flue gas pass through desulfurization slurry liquid film when passing through flue gas flow equalizing orifice plate 15, have the function of pre- desulfurization and dedusting to flue gas；So
Afterwards, flue gas, which continues up, flows into desulfurization slurry spraying zone, slurries spraying layer 4 desulfurization slurry is atomized after to lower spray, with
The flue gas adverse current flowed up contacts, the SO in flue gas2It is desulfurized slurries droplet to fully absorb and reach deep desulfuration, desulfurization
Slurries droplet absorbs SO2Afterwards, it is passed down through the bottom that flue gas flow equalizing orifice plate 15 falls into desulfurizing tower 1, then through slurries pipe gravity flow pipeline
Gravity flow enters slurries oxidation pond 11；Flue gas enters high efficiency demister 3 after desulfurization slurry spraying zone deep desulfuration, is efficiently removed
Neat stress is formed after the tiny desulfurization slurry droplet carried in the sufficiently removing flue gas of day with fog 3, then neat stress exports 2 from neat stress
Desulfurizing tower 1 is discharged.
The desulfurization slurry of 1 bottom of desulfurizing tower enters slurries oxidation pond 11 through the gravity flow of slurries pipe gravity flow pipeline, meanwhile, oxidation fan
Oxidation air is sent into slurries oxidation pond 11 by 10；It is provided with slurries oxidation pond blender 12 in slurries oxidation pond 11, promotes desulfurization
Slurries are sufficiently mixed with oxidation air, occur to force oxidation reaction；Plasm PH value in slurries oxidation pond 11 is 5.0~6.0, should
PH value be conducive to desulfurization slurry sulfite calcium dissolution and oxidation and generate the gypsum (CaSO of high-quality4·2H2O crystal).By
In CaSO4·2H2The specific gravity of O crystal is larger, forms thick slurry in 11 lower part of slurries oxidation pond, thick slurry is discharged through slurry
Pump 13 drains into cyclone 17, is sent again after being concentrated by cyclone 17 to vacuum strainer machine 16, finally formed solids is desulfurization
Gypsum.
Slurries oxidation pond 11 is disposed adjacent with serum recycle pond 8 and is equipped with public pool side, is provided at the top of public pool side excessive
Square hole is flowed, the upper clear supernate of slurries oxidation pond 11 crosses the gravity flow of the square hole at the top of public pool side and enters serum recycle pond 8, meanwhile,
Fresh desulfurizer slurry is added into serum recycle pond 8 for fresh desulfurization agent feeding device 6；Slurries are provided in serum recycle pond 8
Circulatory pool blender 9 promotes fresh desulfurizer slurry to be sufficiently mixed with slurries in pond, and the higher fresh desulfurizer slurry of pH value promotees
Keep the plasm PH value in serum recycle pond 8 significantly raised；The high pH value desulfurization slurry in serum recycle pond 8 passes through slurry circulating pump 7
Send to the slurries spraying layer 4 in desulfurizing tower 1, slurries spraying layer 4 high pH value desulfurization slurry is atomized after to lower spray, with Xiang Shangliu
Dynamic flue gas adverse current contact, effectively enhances quick absorption of the desulfurization slurry droplet to SO2 in flue gas, reaches flue gas deep desulfuration
Effect；Meanwhile desulphurization system liquid-gas ratio is smaller, hence it is evident that the energy consumption for reducing slurry circulating pump effectively reduces the fortune of desulphurization system
Row expense, desulphurization system are more energy saving.Flue gas enters high efficiency demister 3 after deep desulfuration, removes cigarette through high efficiency demister 3
Neat stress is formed after the tiny desulfurization slurry droplet carried in gas, then desulfurizing tower 1 is discharged from neat stress outlet 2 in neat stress.
Claims (3)
1. the device of sulfur dioxide in a kind of efficient removal coal-fired flue-gas, it is characterised in that: it includes being sequentially connected by pipeline
Desulfurizing tower, slurries oxidation pond, serum recycle pond, slurry circulating pump and the fresh desulfurizing agent that is connected with serum recycle pond supply
To device；The inside of the desulfurizing tower sets gradually flue gas flow equalizing orifice plate, slurries from former gas inlet between neat stress outlet
Spraying layer, high efficiency demister；The slurries in desulfurizing tower are accessed in the serum recycle pond by slurry circulating pump and corresponding pipeline
Spraying layer；Slurries oxidation bottom of pond portion by slurry discharge pump, corresponding pipeline successively with cyclone, vacuum strainer machine phase
Even, and the slurries oxidation pond is connected with oxidation fan by corresponding pipeline.
2. the device of sulfur dioxide in efficient removal coal-fired flue-gas according to claim 1, it is characterised in that: the slurries
The lower part of desulfurizing tower is arranged in oxidation pond, and the outside of desulfurizing tower is arranged in serum recycle pond, and the liquid outlet of slurries oxidation pond passes through
Slurry feeding pump and corresponding pipeline are connected with the inlet in serum recycle pond；Slurries oxidation pond is provided in slurries oxidation pond
Blender is provided with serum recycle pond blender in serum recycle pond.
3. the device of sulfur dioxide in efficient removal coal-fired flue-gas according to claim 1, it is characterised in that: the slurries
Oxidation pond and serum recycle pond are arranged at outside desulfurizing tower, and the liquid level of slurry of slurries oxidation pond is lower than the bottom of desulfurizing tower；
The slurries oxidation pond is disposed adjacent with serum recycle pond and is equipped with public pool side；And between slurries oxidation pond and serum recycle pond
Public pool side at the top of be provided with interconnected overflow groove；Slurries oxidation pond blender is provided in slurries oxidation pond,
Serum recycle pond blender is provided in serum recycle pond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822216781.4U CN209438345U (en) | 2018-12-27 | 2018-12-27 | The device of sulfur dioxide in a kind of efficient removal coal-fired flue-gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822216781.4U CN209438345U (en) | 2018-12-27 | 2018-12-27 | The device of sulfur dioxide in a kind of efficient removal coal-fired flue-gas |
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| Publication Number | Publication Date |
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| CN209438345U true CN209438345U (en) | 2019-09-27 |
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| CN201822216781.4U Expired - Fee Related CN209438345U (en) | 2018-12-27 | 2018-12-27 | The device of sulfur dioxide in a kind of efficient removal coal-fired flue-gas |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109499304A (en) * | 2018-12-27 | 2019-03-22 | 朱敬 | The device and technique of sulfur dioxide in a kind of efficient removal coal-fired flue-gas |
| CN114870606A (en) * | 2022-07-05 | 2022-08-09 | 沧州中铁装备制造材料有限公司 | Acid making tail gas purifying and whitening device |
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2018
- 2018-12-27 CN CN201822216781.4U patent/CN209438345U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109499304A (en) * | 2018-12-27 | 2019-03-22 | 朱敬 | The device and technique of sulfur dioxide in a kind of efficient removal coal-fired flue-gas |
| CN114870606A (en) * | 2022-07-05 | 2022-08-09 | 沧州中铁装备制造材料有限公司 | Acid making tail gas purifying and whitening device |
| CN114870606B (en) * | 2022-07-05 | 2022-09-23 | 沧州中铁装备制造材料有限公司 | Acid making tail gas purifying and whitening device |
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