CN108211743A - A kind of deacidifying flue gas denitrification integrated device and its application method - Google Patents
A kind of deacidifying flue gas denitrification integrated device and its application method Download PDFInfo
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- CN108211743A CN108211743A CN201810192923.XA CN201810192923A CN108211743A CN 108211743 A CN108211743 A CN 108211743A CN 201810192923 A CN201810192923 A CN 201810192923A CN 108211743 A CN108211743 A CN 108211743A
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- flue gas
- reaction
- depickling
- reaction zone
- deacidifying
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- 239000003546 flue gas Substances 0.000 title claims abstract description 112
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 105
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000006243 chemical reaction Methods 0.000 claims abstract description 148
- 239000007921 spray Substances 0.000 claims abstract description 42
- 239000000779 smoke Substances 0.000 claims abstract description 37
- 239000012295 chemical reaction liquid Substances 0.000 claims abstract description 26
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 21
- 239000007788 liquid Substances 0.000 claims description 12
- 238000006386 neutralization reaction Methods 0.000 claims description 12
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims description 9
- 238000009825 accumulation Methods 0.000 claims description 6
- 238000000889 atomisation Methods 0.000 claims description 6
- 235000019504 cigarettes Nutrition 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 5
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims description 4
- 239000000356 contaminant Substances 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- 230000014759 maintenance of location Effects 0.000 claims description 2
- 238000005086 pumping Methods 0.000 claims description 2
- 239000003517 fume Substances 0.000 abstract description 6
- 239000000243 solution Substances 0.000 description 33
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 10
- 239000007789 gas Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000010531 catalytic reduction reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 239000003513 alkali Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/60—Simultaneously removing sulfur oxides and nitrogen oxides
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
The present invention provides a kind of deacidifying flue gas denitrification integrated devices, it can not only save floor space, reduce equipment investment and operating cost, the smoke temperature requirement of fume treatment can also be met, and realize that flue gas is evenly distributed, mass-and heat-transfer efficiency is improved, reduces crushing, the present invention also provides a kind of application methods of deacidifying flue gas denitrification integrated device；Reaction tower be equipped with into, outlet flue, denitrating flue gas is separated by supporting plate in reaction tower, depickling reaction zone, spray equipment is equipped with above reaction zone, there is phase reaction liquid in reaction zone, the smoke distributor being equipped in reaction tower includes at least two distribution plates, and annular distribution connection guide vane, and at least two radial passages are divided by guide vane, the air inlet hole for communicating with radial passage and being connect with smoke inlet is provided on top layer distribution plate, radial passage is immersed in reaction solution, running through on supporting plate has the disturbed flow pipe higher than reaction solution height, disturbed flow pipe outlet top is supported with baffle of the outer diameter more than disturbed flow pipe outlet outer diameter.
Description
Technical field
The present invention relates to smoke, specially a kind of deacidifying flue gas denitrification integrated device and its user
Method.
Background technology
In castoff burning processing procedure, a large amount of pollutant can be generated, such as nitrogen oxides, sulfur dioxide, hydrogen chloride
Deng, and cause the pollutions such as acid rain and photochemical fog, and it also just needs to carry out flue gas respectively depickling denitration process thus, it is wide at present
The acid stripping method of general application is dry method (alkaline powder neutralization), semidry process (lime white neutralization) and wet method (calcium alkali or sodium
Alkali neutralization), the methods of method of denitration is then using selective catalytic reduction, and depickling denitration is realized using the above method,
In implementation process, depickling denitration process is required to individual equipment to carry out, then not only needs larger floor space, equipment
Investment and operating cost are also higher；In addition, flue gas is generally after the depickling of rotating spraying tower and deduster dedusting, flue gas
Temperature then before carrying out selective catalytic reduction and carrying out denitration, needs that flue gas is carried out to be again heated to 150 DEG C or more than relatively low,
Thus so that energy consumption increases, flue gas operating cost also increases；And in the out of stock processing procedure of depickling, the purification for flue gas,
Generally use is the structure of CN205730848U patents just like publication number, although having reached clean-up effect, it is using straight
Enter the gas inlet of formula structure, i.e. flue gas is directly entered by gas inlet in cleaning equipment, also may result in import flue gas point
Cloth is uneven, and so as to so that the mass-and heat-transfer efficiency between flue gas and spray liquid is low, crushing is also bigger.
Invention content
Implement fume treatment for the existing larger floor space of needs, of high cost, high to smoke temperature requirement, flue gas distributes unevenness
Even, the inefficient problem of mass-and heat-transfer, the present invention provides a kind of deacidifying flue gas denitrification integrated devices, can not only save and account for
Ground area reduces equipment investment and operating cost, can also meet the smoke temperature requirement of fume treatment, and realizes that flue gas is evenly distributed,
Mass-and heat-transfer efficiency is improved, reduces crushing, in addition, the present invention also provides a kind of uses of deacidifying flue gas denitrification integrated device
Method.
Its technical solution is such：It includes reaction tower, and the reaction tower is equipped with smoke inlet, outlet flue, described anti-
It answers and spray equipment is equipped in tower, it is characterised in that：The denitrating flue gas of levels setting is separated into the reaction tower by supporting plate
Reaction zone, deacidifying flue gas reaction zone, each reaction zone top are equipped with the spray equipment, and the reaction zone bottom has
Respective reaction liquid, is equipped with smoke distributor in the reaction tower, and the smoke distributor includes at least two distribution plates, described point
Guide vane is connected with, and at least two radial passages, top layer are divided by the guide vane with annular distribution between disk
The distribution plate on be provided with the air inlet hole being connected with the radial passage, the air inlet hole is connect with the smoke inlet, institute
Radial passage to be stated to be immersed in the reaction solution, running through on the supporting plate has the disturbed flow pipe higher than the reaction solution liquid level,
Disturbed flow pipe outlet top is supported with baffle, and the outer diameter of the baffle is more than the outer diameter of disturbed flow pipe outlet.
It is further characterized by：
The distribution disk center is equipped with annular ring, and the guide vane is circumferentially distributed along annular ring, the adjacent water conservancy diversion
Circumferential angle between blade is identical, and the air inlet hole is set to the distribution disk center of top layer, is connected on the air inlet hole
There is the connecting tube being connected with the smoke inlet；
Equally distributed through-hole is provided on the supporting plate, the disturbed flow pipe is accordingly plugged in the through-hole, in the disturbed flow pipe
The heart is equipped with connecting rod, and circumferential direction is connected with turbulence blades, and the outer end of the turbulence blades and the flow-disturbing in the connecting rod
Tube wall connects, and the circumferential angle between the adjacent turbulence blades is identical；
The baffle is in umbrella, and the height of the connecting rod is higher than the height of the disturbed flow pipe, and the baffle is connected to the company
Extension bar top；
The smoke inlet is set to the reaction tower wall body of the deacidifying flue gas reaction zone, and the outlet flue is set to described anti-
Top of tower is answered, the reaction tower bottom is equipped with outlet；
The spray equipment includes spray tube and the circulating pump being set to outside the reaction tower, the reaction solution are followed by described
Ring is pumped into the spray tube, the spray port of the spray tube in reaction zone described in upper strata upward, reaction zone described in lower floor
In the spray tube spray mouth down；
The reaction solution of lower floor is depickling reaction solution, using a concentration of 5%~15% NaOH lye；Upper strata it is described
Reaction solution is denitration reaction liquid, using containing NH3With the mixed liquor of NaClO, NH in the mixed liquor3With mole of NaClO
Than for 0.2~2, NH3A concentration of 0.1%~20%, NaClO a concentration of 2%~10%；The height of the disturbed flow pipe is higher than described
The storage liquid level of denitration reaction liquid.
A kind of application method of deacidifying flue gas denitrification integrated device, it is characterised in that：It includes the following steps：
(1), flue gas enters deacidifying flue gas reaction zone, and the radial direction being divided by guide vane on smoke distributor by smoke inlet
Channel is uniformly sent into reaction tower, and the acid contaminant in flue gas directly carries out just with reacting the depickling reaction solution of tower bottom accumulation
Neutralization reaction is walked, subsequent flue gas rises, and the depickling reaction solution after the atomization with being sprayed by spray equipment is neutralized again
It reacts to realize depickling；
(2), the flue gas after depickling continues to rise, and passes through disturbed flow pipe and enter denitrating flue gas reaction zone, and flue gas passes through baffle
Sufficient haptoreaction is carried out after turbulent flow with the denitration reaction liquid being sprayed out, and anti-by the denitration that baffle retention sprays
It answers liquid and is collected on supporting plate, the NO in flue gasxWater-soluble product is formed after being reacted with denitration reaction liquid, and is removed
SO in flue gas2, reached depickling denitration double effects, then passed through the out of stock neat stress of depickling and arranged from the outlet flue of reaction tower
Go out.
It is further characterized by：
In the step (1), flue gas is dissolved in described with the salt that the depickling reaction solution after atomization is generated after neutralization reaction again
In the depickling reaction solution for reacting tower bottom accumulation, after salinity reaches 4%-6% in depickling reaction solution, pass through the reaction tower
The outlet discharge of bottom；In the step (2), the denitration reaction liquid that is collected on supporting plate, a part is by recycling pumping
It send into the spray equipment above the disturbed flow pipe, another part is disposed to outside the reaction tower；
Residence time of the flue gas in the deacidifying flue gas reaction zone, denitrating flue gas reaction zone is no less than 10s；The flue gas takes off
Reaction temperature in nitre reaction zone is 40 DEG C~80 DEG C；Flue gas in the denitrating flue gas reaction zone is anti-with denitration reaction liquid
Ying Shiwei：
The invention has the advantages that flue gas enters in the deacidifying flue gas reaction zone of reaction tower, and by smoke inlet by cigarette
The radial passage that guide vane is divided on qi leel orchestration, which is uniformly sent into depickling reaction solution, carries out preliminary neutralization reaction, on flue gas
Neutralization reaction is carried out with the depickling reaction solution that is gone out by spray again after rising, flue gas is further purified, so as to fulfill depickling,
Flue gas after depickling enters denitrating flue gas reaction zone by disturbed flow pipe, and passing through baffle makes flue gas fluidised form fully turbulent, enhances
Mass transfer between flue gas and denitration reaction liquid, and baffle can retain the denitration reaction liquid that top sprays, and avoid depickling and denitration
The mixing of two kinds of reaction solutions, so as to the NO in flue gasXWater-soluble product is formed after being reacted with denitration reaction liquid, and can be taken off
Except the SO in flue gas2, reach the double effects of depickling denitration, then passed through the out of stock neat stress of depickling and discharged from outlet flue,
So that flue gas integrated treatment out of stock after first depickling can be completed in reaction tower, without adding individual processing equipment, is saved
Floor space has been saved, has reduced equipment investment and operating cost, and flue gas is evenly distributed, purification efficiency is high, and in denitration reaction
Area can realize the cooling to flue gas by spray flux, meet the smoke temperature requirement of fume treatment, have preferable economic benefit
It is worth with application and popularizations.
Description of the drawings
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is disturbed flow pipe and the structure diagram of baffle assembling；
Fig. 3 is the front view of smoke distributor；
Fig. 4 is the A-A of Fig. 3 to structure diagram；
Fig. 5 is the stereogram of smoke distributor.
Specific embodiment
As shown in fig. 1~fig. 5, the present invention includes reaction tower 1, and reaction tower 1 is equipped with smoke inlet 2, outlet flue 3, is set in reaction tower 1
There is spray equipment, different reaction zones is separated into reaction tower 1 by supporting plate 4, and set for levels, above each reaction zone
It is equipped with spray equipment, there is a reaction solution reaction zone bottom, and the reaction zone on upper strata is denitrating flue gas reaction zone 19, the reaction of lower floor
Area is deacidifying flue gas reaction zone 15, and smoke inlet 2 is set to 1 wall body of reaction tower of deacidifying flue gas reaction zone 15, and outlet flue 3 is set to
1 top of reaction tower, 1 bottom of reaction tower is equipped with outlet 16；Spray equipment includes spray tube 17 and is set to outside reaction tower 1
Circulating pump 18, reaction solution by circulating pump 18 be pumped into spray tube 17 in, the spray port of the spray tube 17 in the reaction zone of upper strata upward,
The spray mouth down of spray tube 17 in lower floor's reaction zone；Smoke distributor 5 is equipped in reaction tower 1, smoke distributor 5 includes two
A distribution plate 6, annular distribution is connected with 12 guide vanes 7, and be divided into 12 diameters by guide vane 7 between distribution plate 6
To air duct 8, the air inlet hole being connected with radial passage 8 is provided on the distribution plate 6 of top layer, air inlet hole is connect with smoke inlet 2, radially
Air duct 8 is immersed in reaction solution, through the disturbed flow pipe 9 having higher than reaction solution liquid level on supporting plate 4, prevents reaction solution overflow extremely
Equipment lower part is mixed with depickling reaction solution, and the outlet of disturbed flow pipe 9 top is supported with baffle 10, and the outer diameter of baffle 10 is more than disturbed flow pipe 9
The outer diameter of outlet.
6 center of distribution plate be equipped with annular ring 11, guide vane 7 is circumferentially distributed along annular ring 11, adjacent guide vane 7 it
Between circumferential angle it is identical, air inlet hole is set to 6 center of distribution plate of top layer, is connected with what is be connected with smoke inlet 2 on air inlet hole
Connecting tube 12, i.e. 12 radial passages 8 are connected by air inlet hole, connecting tube 12 with smoke inlet 2；It is provided with and is uniformly distributed on supporting plate 4
5 through-holes, disturbed flow pipe 9 is accordingly plugged in through-hole respectively, and 9 center of disturbed flow pipe is equipped with connecting rod 13, circumferential in connecting rod 13
Be connected with 5 turbulence blades 14, and the outer end of turbulence blades 14 is connect with 9 tube wall of disturbed flow pipe, adjacent turbulence blades 14 it
Between circumferential angle it is identical；Baffle 10 is in umbrella, and the height of connecting rod 13 is higher than the height of disturbed flow pipe 9, and baffle 10 is connected to
13 top of extension bar.
The reaction solution of lower floor is depickling reaction solution, using a concentration of 12% NaOH lye；The reaction solution on upper strata is
Denitration reaction liquid, using containing NH3With the mixed liquor of NaClO, NH in mixed liquor3Molar ratio with NaClO is 1.1, NH3
A concentration of 8%, NaClO a concentration of 7%；The height of disturbed flow pipe 9 is higher than the storage liquid level of denitration reaction liquid.
A kind of application method of deacidifying flue gas denitrification integrated device, includes the following steps：
(1), the flue gas that castoff burning generates enters deacidifying flue gas reaction zone 15 by smoke inlet 2, and by smoke distributor 5
The radial passage 8 that guide vane 7 is divided into uniformly is sent into the depickling reaction solution containing NaOH, and the acid contaminant in flue gas is straight
It connects the depickling reaction solution accumulated with 1 bottom of reaction tower and carries out preliminary neutralization reaction, subsequent flue gas rises, the accumulation of 1 bottom of reaction tower
The depickling reaction solution containing NaOH pumped by circulating pump 18 to being set in the spray tube 17 of the top of smoke distributor 5, then cigarette
Gas and the depickling reaction solution being ejected after atomization carry out neutralization reaction to realize depickling again, and flue gas has also obtained further net
Change, while the salt generated after flue gas and the depickling reaction solution after atomization again neutralization reaction can be dissolved in the accumulation of 1 bottom of reaction tower
Depickling reaction solution in, after salinity reaches 5% in depickling reaction solution, discharged by the outlet 16 of 1 bottom of reaction tower；
(2), the flue gas after depickling continues to rise, and passes through disturbed flow pipe 9 and enter denitrating flue gas reaction zone 14, and flue gas passes through gear
Plate 10 makes flue gas fluidised form fully turbulent, enhances the mass transfer between flue gas and denitration reaction liquid, is then taken off with what is be uniformly sprayed out
Nitre reaction solution carries out sufficient haptoreaction, and the denitration reaction liquid that sprays can be retained by umbellate form baffle 10 to be collected
To supporting plate 4, the mixing of depickling and two kinds of reaction solutions of denitration is avoided, and the reaction temperature in denitrating flue gas reaction zone 19 is 50
DEG C, far below existing catalysis reduction and the required 150 DEG C of temperatures above of non-catalytic reduction denitration, meet the cigarette of fume treatment
Temperature requirement, and the NO in flue gasxWater-soluble product is formed after being reacted with denitration reaction liquid, and can be removed in flue gas
SO2, reach depickling denitration double effects, then passed through the out of stock neat stress of depickling and discharged from the outlet flue 3 of reaction tower 1, it is full
Foot flue gas emission requirement, then deacidifying flue gas efficiency is up to more than 95%, denitration efficiency is up to more than 70%；And pollutant is by support
Plate 4 can be discharged reaction tower after collecting, meanwhile, the denitration reaction liquid being collected on supporting plate 4 a, part can pass through circulating pump 18
The circulated sprinkling into the spray equipment of 9 top of disturbed flow pipe is pumped, another part is disposed to outside reaction tower 1；So as in reaction tower 1
It is interior can high efficiency complete out of stock flue gas integrated treatment after first depickling, set without the out of stock processing of individual depickling is added
It is standby, floor space is saved, reduces equipment investment and operating cost, and flue gas is evenly distributed, purification efficiency is high, and in denitration
Reaction zone 14 by the cooling for controlling spray flux to realize to flue gas, can meet the smoke temperature requirement of fume treatment, have preferable
Economic benefit and application and popularizations value.
Wherein, residence time of the flue gas in deacidifying flue gas reaction zone 15, denitrating flue gas reaction zone 19 is 15s；In cigarette
The reaction equation of flue gas and denitration reaction liquid in qi exhaustion nitre reaction zone 19 is：
Wherein, aq represents the liquid of aqueous solution, and l represents liquid, and g represents gas；By above-mentioned reaction equation, the sour gas in flue gas
The presence of body, especially sulfur dioxide can generate competitive effect to denitrating flue gas, and sulfur dioxide can also be reacted with denitration reaction liquid,
So as to which the sulfur dioxide effectively removed in flue gas realizes the depickling again in denitrating flue gas reaction zone 19, further purify
Flue gas.
Claims (10)
1. a kind of deacidifying flue gas denitrification integrated device, including reaction tower, the reaction tower is equipped with smoke inlet, outlet flue,
Spray equipment is equipped in the reaction tower, it is characterised in that：The cigarette of levels setting is separated into the reaction tower by supporting plate
Qi exhaustion nitre reaction zone, deacidifying flue gas reaction zone, each reaction zone top are equipped with the spray equipment, the reaction zone bottom
There is respective reaction liquid in portion, and smoke distributor is equipped in the reaction tower, and the smoke distributor includes at least two distribution plates,
Annular distribution is connected with guide vane between the distribution plate, and is divided at least two diameters aweather by the guide vane
Road is provided with the air inlet hole being connected with the radial passage, the air inlet hole and the smoke inlet on the distribution plate of top layer
Connection, the radial passage are immersed in the reaction solution, and running through on the supporting plate has higher than the reaction solution liquid level
Disturbed flow pipe, disturbed flow pipe outlet top are supported with baffle, and the outer diameter of the baffle is more than the outer diameter of disturbed flow pipe outlet.
2. a kind of deacidifying flue gas denitrification integrated device according to claim 1, it is characterised in that：The distribution disk center
Equipped with annular ring, the guide vane is circumferentially distributed along annular ring, the circumferential angle between the adjacent guide vane
Identical, the air inlet hole is set to the distribution disk center of top layer, is connected on the air inlet hole and is connected with the smoke inlet
Connecting tube.
3. a kind of deacidifying flue gas denitrification integrated device according to claim 1, it is characterised in that：It is provided on the supporting plate
Equally distributed through-hole, the disturbed flow pipe are accordingly plugged in the through-hole, and the flow-disturbing tube hub is equipped with connecting rod, the company
Circumferential direction is connected with turbulence blades on extension bar, and the outer end of the turbulence blades is connect with the flow-disturbing tube wall, adjacent institute
The circumferential angle stated between turbulence blades is identical.
4. a kind of deacidifying flue gas denitrification integrated device according to claim 3, it is characterised in that：The baffle is in umbrella
Shape, the height of the connecting rod are higher than the height of the disturbed flow pipe, and the baffle is connected to the connecting rod top.
5. a kind of deacidifying flue gas denitrification integrated device according to claim 1, it is characterised in that：The smoke inlet setting
In the reaction tower wall body of the deacidifying flue gas reaction zone, the outlet flue is set at the top of the reaction tower, the reaction
Tower bottom is equipped with outlet.
6. a kind of deacidifying flue gas denitrification integrated device according to claim 1, it is characterised in that：The spray equipment packet
Spray tube and the circulating pump being set to outside the reaction tower are included, the reaction solution is pumped into the spray tube by the cycle
In, the spray port of the spray tube in reaction zone described in upper strata upward, the spray of the spray tube in reaction zone described in lower floor
Drench mouth down.
7. a kind of deacidifying flue gas denitrification integrated device according to claim 1, it is characterised in that：The reaction of lower floor
Liquid is depickling reaction solution, using a concentration of 5%~15% NaOH lye；The reaction solution on upper strata is denitration reaction
Liquid, using containing NH3With the mixed liquor of NaClO, NH in the mixed liquor3Molar ratio with NaClO is 0.2~2, NH3It is dense
It spends for 0.1%~20%, NaClO a concentration of 2%~10%；The height of the disturbed flow pipe is higher than the storage of the denitration reaction liquid
Liquid level.
8. according to a kind of application method of any deacidifying flue gas denitrification integrated device of claim 1~7, feature exists
In：It includes the following steps：
(1), flue gas enters deacidifying flue gas reaction zone, and the radial direction being divided by guide vane on smoke distributor by smoke inlet
Channel is uniformly sent into reaction tower, and the acid contaminant in flue gas directly carries out just with reacting the depickling reaction solution of tower bottom accumulation
Neutralization reaction is walked, subsequent flue gas rises, and the depickling reaction solution after the atomization with being sprayed by spray equipment is neutralized again
It reacts to realize depickling；
(2), the flue gas after depickling continues to rise, and passes through disturbed flow pipe and enter denitrating flue gas reaction zone, and flue gas passes through baffle
Sufficient haptoreaction is carried out after turbulent flow with the denitration reaction liquid being sprayed out, and anti-by the denitration that baffle retention sprays
It answers liquid and is collected on supporting plate, the NO in flue gasxWater-soluble product is formed after being reacted with denitration reaction liquid, and is removed
SO in flue gas2, reached depickling denitration double effects, then passed through the out of stock neat stress of depickling and arranged from the outlet flue of reaction tower
Go out.
9. a kind of application method of deacidifying flue gas denitrification integrated device according to claim 8, it is characterised in that：It is special
Sign is：In the step (1), the salt generated after flue gas and the depickling reaction solution after atomization again neutralization reaction is dissolved in institute
In the depickling reaction solution for stating reaction tower bottom accumulation, after salinity reaches 4%-6% in depickling reaction solution, pass through the reaction
The outlet discharge of tower bottom；In the step (2), the denitration reaction liquid that is collected on the supporting plate, a part is by following
Ring pumping is sent into the spray equipment above the disturbed flow pipe, and another part is disposed to outside the reaction tower.
10. a kind of deacidifying flue gas denitrification integrated device according to claim 8, it is characterised in that：Flue gas is in the cigarette
Residence time in qi exhaustion acid reaction zone, denitrating flue gas reaction zone is no less than 10s；Reaction in the denitrating flue gas reaction zone
Temperature is 40 DEG C~80 DEG C；The reaction equation of flue gas and denitration reaction liquid in the denitrating flue gas reaction zone is：
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109289228A (en) * | 2018-10-10 | 2019-02-01 | 中国华电科工集团有限公司 | A kind of device and method for heat-engine plant desulfurized Ta Tanei spraying cooling eliminating white smoke |
| CN111330305A (en) * | 2020-04-13 | 2020-06-26 | 华能国际电力股份有限公司 | Spray condensing and water recovering device in desulfurization absorption tower |
| CN111408261A (en) * | 2020-04-23 | 2020-07-14 | 山西海洁星环保设备有限公司 | Integrated flue gas purification device and method based on semi-dry desulfurization |
| CN111905551A (en) * | 2020-07-23 | 2020-11-10 | 天津市远卓环境工程股份有限公司 | Double-layer alkali absorption oxidation tower |
| CN116764421A (en) * | 2023-06-12 | 2023-09-19 | 江苏峰业环境科技集团股份有限公司 | Desulfurization and denitrification environment-friendly flue gas treatment reaction tower |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1745880A (en) * | 2005-08-15 | 2006-03-15 | 周宗云 | Low-consumption and high-efficient smoke purifying system with desulfuring, deoiling, dust-proof and dust-collecting functions |
| CN202876647U (en) * | 2012-09-28 | 2013-04-17 | 北京利德衡环保工程有限公司 | Wet-process desulfurizing and denitrifying device for coal-fired boiler and kiln smoke |
| CN104399367A (en) * | 2014-11-25 | 2015-03-11 | 西安交通大学 | Smoke washing device with scaling-shaped hole plate |
| CN205019943U (en) * | 2015-09-22 | 2016-02-10 | 浙江宏电环保科技有限公司 | Integration SOx/NOx control reaction tower |
| WO2017096692A1 (en) * | 2015-12-09 | 2017-06-15 | 深圳广昌达环境科学有限公司 | Fuel gas denitration and desulfurization washing system and denitration and desulfurization method |
| CN106890544A (en) * | 2017-02-27 | 2017-06-27 | 湖南云平环保科技有限公司 | Sodium base desulphurization denitration absorbent and preparation method thereof |
| CN208287790U (en) * | 2018-03-09 | 2018-12-28 | 无锡雪浪环境科技股份有限公司 | A kind of deacidifying flue gas denitrification integrated device |
-
2018
- 2018-03-09 CN CN201810192923.XA patent/CN108211743A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1745880A (en) * | 2005-08-15 | 2006-03-15 | 周宗云 | Low-consumption and high-efficient smoke purifying system with desulfuring, deoiling, dust-proof and dust-collecting functions |
| CN202876647U (en) * | 2012-09-28 | 2013-04-17 | 北京利德衡环保工程有限公司 | Wet-process desulfurizing and denitrifying device for coal-fired boiler and kiln smoke |
| CN104399367A (en) * | 2014-11-25 | 2015-03-11 | 西安交通大学 | Smoke washing device with scaling-shaped hole plate |
| CN205019943U (en) * | 2015-09-22 | 2016-02-10 | 浙江宏电环保科技有限公司 | Integration SOx/NOx control reaction tower |
| WO2017096692A1 (en) * | 2015-12-09 | 2017-06-15 | 深圳广昌达环境科学有限公司 | Fuel gas denitration and desulfurization washing system and denitration and desulfurization method |
| CN106890544A (en) * | 2017-02-27 | 2017-06-27 | 湖南云平环保科技有限公司 | Sodium base desulphurization denitration absorbent and preparation method thereof |
| CN208287790U (en) * | 2018-03-09 | 2018-12-28 | 无锡雪浪环境科技股份有限公司 | A kind of deacidifying flue gas denitrification integrated device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109289228A (en) * | 2018-10-10 | 2019-02-01 | 中国华电科工集团有限公司 | A kind of device and method for heat-engine plant desulfurized Ta Tanei spraying cooling eliminating white smoke |
| CN111330305A (en) * | 2020-04-13 | 2020-06-26 | 华能国际电力股份有限公司 | Spray condensing and water recovering device in desulfurization absorption tower |
| CN111408261A (en) * | 2020-04-23 | 2020-07-14 | 山西海洁星环保设备有限公司 | Integrated flue gas purification device and method based on semi-dry desulfurization |
| CN111905551A (en) * | 2020-07-23 | 2020-11-10 | 天津市远卓环境工程股份有限公司 | Double-layer alkali absorption oxidation tower |
| CN116764421A (en) * | 2023-06-12 | 2023-09-19 | 江苏峰业环境科技集团股份有限公司 | Desulfurization and denitrification environment-friendly flue gas treatment reaction tower |
| CN116764421B (en) * | 2023-06-12 | 2024-02-23 | 江苏峰业环境科技集团股份有限公司 | Desulfurization and denitrification environment-friendly flue gas treatment reaction tower |
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