CN109482041A - The environmental protecting device and technique of plume in a kind of reduction flue gas - Google Patents
The environmental protecting device and technique of plume in a kind of reduction flue gas Download PDFInfo
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- CN109482041A CN109482041A CN201811510165.8A CN201811510165A CN109482041A CN 109482041 A CN109482041 A CN 109482041A CN 201811510165 A CN201811510165 A CN 201811510165A CN 109482041 A CN109482041 A CN 109482041A
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- China
- Prior art keywords
- flue gas
- absorption tower
- spray
- trapezoidal
- clear water
- Prior art date
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Links
- 239000003546 flue gas Substances 0.000 title claims abstract description 61
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 59
- 230000009467 reduction Effects 0.000 title claims abstract description 21
- 230000007613 environmental effect Effects 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000010521 absorption reaction Methods 0.000 claims abstract description 48
- 239000007788 liquid Substances 0.000 claims abstract description 37
- 238000004062 sedimentation Methods 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000007789 gas Substances 0.000 claims abstract description 25
- 239000002250 absorbent Substances 0.000 claims abstract description 21
- 230000002745 absorbent Effects 0.000 claims abstract description 21
- 239000012535 impurity Substances 0.000 claims abstract description 21
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 17
- 230000023556 desulfurization Effects 0.000 claims abstract description 17
- 239000007921 spray Substances 0.000 claims description 68
- 238000007667 floating Methods 0.000 claims description 29
- 238000009826 distribution Methods 0.000 claims description 21
- 239000011148 porous material Substances 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 7
- 239000000779 smoke Substances 0.000 claims description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 6
- 235000019738 Limestone Nutrition 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 3
- 239000012670 alkaline solution Substances 0.000 claims description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 3
- 239000003814 drug Substances 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 239000006028 limestone Substances 0.000 claims description 3
- 239000010802 sludge Substances 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims 1
- 239000004575 stone Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000247 postprecipitation Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 235000019504 cigarettes Nutrition 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- CSJDCSCTVDEHRN-UHFFFAOYSA-N methane;molecular oxygen Chemical compound C.O=O CSJDCSCTVDEHRN-UHFFFAOYSA-N 0.000 description 1
- 239000011859 microparticle Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- ZODDGFAZWTZOSI-UHFFFAOYSA-N nitric acid;sulfuric acid Chemical compound O[N+]([O-])=O.OS(O)(=O)=O ZODDGFAZWTZOSI-UHFFFAOYSA-N 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 125000000101 thioether group Chemical group 0.000 description 1
- 238000010792 warming Methods 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
- B01D53/14—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 by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
-
- 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
- B01D53/14—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 by absorption
- B01D53/1425—Regeneration of liquid absorbents
-
- 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
- B01D53/14—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 by absorption
- B01D53/1493—Selection of liquid materials for use as absorbents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Life Sciences & Earth Sciences (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses the environmental protecting devices and technique of plume in a kind of reduction flue gas, including flue gas desulfurization device, absorption tower, sedimentation basin, clear water reserviors, centrifugal pump, electric trapper, chimney are successively arranged after flue gas desulfurization device, the exhanst gas outlet of the flue gas desulfurization device is connect with the air inlet of absorption tower side, the liquid outlet of absorption tower lower part connects sedimentation basin, agitating device is equipped in sedimentation basin, for handling impurity in absorbent；Clear water reserviors are connected after sedimentation basin, clear water reserviors connect the inlet of absorption tower side by centrifugal pump；The gas outlet connection on absorption tower top is used for the electric trapper of electric fishing dedusting, and electric trapper upper outlet is connect with chimney.The present invention uses room temperature clear water as absorbent, can not only remove the impurity in flue gas, but also can reduce the temperature of flue gas, then handle through post precipitation, and absorbent is returned in clear water reserviors, is recycled, while reducing the discharge of vapor, reduces greenhouse effects.
Description
Technical field
The present invention relates to the environmental protecting devices and technique of plume in a kind of reduction flue gas, belong to chemical equipment technical field.
Background technique
Haze is increasingly severe in recent years, brings tremendous influence to people's production, life.It has been recognized that haze comes
Mainly there are industrial discharge pollution, urban construction finishing, dust on the roads, smoke evacuation and vehicle exhaust etc. of warming oneself of living in source.In haze
Subtle dust, volatility acid mist such as nitric acid-sulfuric acid mist, organic hydrocarbon compounds, heavy metal etc. are contained, these exactly industrial tails
The main component of gas, heating boiler, vehicle exhaust.Thermal power generation, metallurgy, chemical industry and building materials work especially based on fire coal
Industry is one of the main source of Airborne particulate and sulfide.And vehicle exhaust majority is sulfide, nitrogen oxides and carbon oxygen
Microparticle content is higher in compound, especially diesel automobile exhaust.So it has been recognized that industrial discharge and vehicle exhaust structure
At most important harm in haze pollution.The big objective of haze improvement is carried out at present: first is that population controlling, second is that increasing environmental protection
Capital investment, third is that reinforcing the formulation of environmentally friendly law and reinforcing law enforcement dynamics, four are to speed up the innovation and development of science and technology.Control people
Mouth belongs to the non-arduous target that overnight can be achieved with；As for the system for the environmentally friendly law of capital investment and reinforcement for increasing environmental protection
Fixed, a large amount of fund has been put into country during the improvement " 12th Five-Year Plan " of atmosphere pollution, and newest environmental law is also from January, 2015
It comes into effect within 1st, the increasingly increasing with country to haze implementation dynamics is administered, dirt, sulphur, the emission reduction of nitre are huge, although such as
This emission reduction does not still bring lasting blue sky and white cloud to us, and the haze of national most area is instead increasingly severe, studies carefully
Its reason, in place of still having many shortcomings to the ways and means that haze is administered, the exploitation for controlling haze new technology is also needed really
It fulfills.
105805768 A of Chinese patent CN discloses a kind of energy-saving environmental protection device and technique for reducing flue gas white cigarette, passes through
Two blowers and glass plate type heat exchanger realize cooling heat exchange, but are not described in detail the construction of glass plate type heat exchanger；
105964087 A of Chinese patent CN discloses the system and method for reduction flue gas generation PM2.5 a kind of, passes through a variety of demisters
Demisting twice is carried out, but process is complicated, needs plurality of devices, which increases costs.
It mostly uses at present and increases equipment such as flue gas-smoke re-heater (GGH) in flue gas pipeline tail portion, after improving desulfurization
The method of flue gas exhaust gas temperature improves pollutant diffusance, mitigates chimney corrosion and white cigarette phenomenon.But GGH mostly uses metal material
Material manufacture, can usually break down because of reasons such as acid dew piont corrosion, blockings in use, stop working, and therefore, be badly in need of
A kind of new equipment and process are developed come the problem of administering PM2.5.
Summary of the invention
The present invention is intended to provide a kind of environmental protecting device and technique for reducing plume in flue gas.
The present invention provides a kind of environmental protecting device of plume in reduction flue gas, including flue gas desulfurization device, flue gas desulfurization dresses
It postpones and is successively arranged absorption tower, sedimentation basin, clear water reserviors, centrifugal pump, electric trapper, chimney, the flue gas of the flue gas desulfurization device goes out
Mouth is connect with the air inlet of absorption tower side, and the liquid outlet of absorption tower lower part connects sedimentation basin, is equipped with agitating device in sedimentation basin,
For handling impurity in absorbent；Clear water reserviors are connected after sedimentation basin, clear water reserviors connect the feed liquor of absorption tower side by centrifugal pump
Mouthful；The gas outlet connection on absorption tower top is used for the electric trapper of electric fishing dedusting, and electric trapper upper outlet is connect with chimney.
In above-mentioned apparatus, absorb the bottom of the tower is equipped with air inlet and liquid outlet, and air inlet duct end is equipped with gas distributor；
Gas outlet and inlet are equipped at the top of absorption tower, inlet pipeline connects six-way circle spray thrower, is equipped with staggeredly inside absorption tower
The end of the trapezoidal Induced flow floating valve column plate of arrangement, trapezoidal Induced flow floating valve column plate is equipped with overflow weir.
Further, in the trapezoidal Induced flow floating valve column plate, valve opening top be trapezoidal valve block, can change fluid flow and
Flow direction, the length of the trapezoidal valve block are 20-100mm, and width 15-35mm, valve leg height is 10-30mm.
Further, in the trapezoidal Induced flow floating valve column plate two adjacent trapezoidal wave peaks center away from L be 2-10mm.
Further, trapezoidal base angle is 45 ° in the trapezoidal Induced flow floating valve column plate.
Further, trapezoidal inclined plane is equipped with 20-40 deflector hole in the trapezoidal Induced flow floating valve column plate, in ladder plane
Equipped with 10-20 deflector hole, the aperture of deflector hole is 1-5mm.
Further, the six-way circle spray thrower center is equipped with liquid distribution cavity, is hollow cylindrical cavity, liquid point
Six spray supervisors are distributed with chamber outward radial, two adjacent spray supervisor ends are connected by the spray branch pipe of arc, and six
Item spray branch pipe connects to form an annulus.That is: branch pipe is sprayed in the described six-way circle spray thrower is set to the upper distance of spray supervisor
The position of liquid distribution cavity distalmost end.
Further, the identical spray apertures of size there are six being set in liquid distribution cavity in the six-way circle spray thrower；Often
Item spray supervisor is equipped with seven spray apertures, and the pore sizes of spray apertures is with remoter and bigger apart from liquid distribution cavity, most
Aperture is identical as the pore size of spray apertures in liquid distribution cavity；Set on every spray branch pipe there are five spray apertures, aperture with
The pore size of spray apertures on spray supervisor apart from liquid distribution cavity farthest is equal, sprays two neighboring spray apertures on branch pipe
Center of circle spacing be 10 °.
In above-mentioned apparatus, agitating device is triangle agitating paddle in the sedimentation basin, and the left and right sides of agitating shaft is set respectively
There is triangle agitating paddle of different sizes, two paddles in left and right are triangle, and two triangles are similar, likelihood ratio 2:1；Two
Triangle drag reduction hole is provided on agitating paddle, drag reduction hole is similar to agitating paddle, and drag reduction hole is also triangle, the triangle of it and place
Shape agitating paddle is similar, likelihood ratio 1:5.
The present invention provides a kind of environment-protective process of plume in reduction flue gas, comprising the following steps:
(1) high-temperature flue gas come out from flue gas desulfurization device, enters absorption tower, air inlet of the high-temperature flue gas from absorb the bottom of the tower
Mouth enters, and is sufficiently diffused into absorption tower, comes into full contact on trapezoidal Induced flow floating valve column plate with absorbent, both through gas distributor
Removal of impurities is realized, the cooling to flue gas is also achieved, the flue gas after removal of impurities cooling is discharged at the top of absorption tower, lead to electric trapper,
Electric fishing dedusting is carried out through electric trapper, obtains clean gas, then through smoke stack emission into atmosphere；
Absorbent in absorption tower refers to room temperature clear water；
(2) at the same time, absorbent is pumped into absorption tower from clear water reserviors through centrifugal pump, abundant by six-way circle spray thrower
It is distributed in tower, then the impurity in flue gas is removed, from absorb the bottom of the tower with smoke contacts on trapezoidal Induced flow floating valve column plate
Liquid outlet enters in sedimentation basin, by adding flocculant, under the action of agitating device, forms sludge and other impurities, from
Sedimentation basin lower part enters at impurity storage；It is gone deimpurity absorbent to be passed into clear water reserviors again, is recycled.
In above-mentioned technique, the flocculant is cheap lime, lime stone or the alkaline solution prepared with calcium carbonate medicament.
It devises trapezoidal Induced flow floating valve column plate and six-way circle spray thrower in absorption tower of the present invention, when operation, is led from trapezoidal
Liquid stream on the air-flow and column plate of the blowout of stream float valve two sides contacts with each other, on the other hand from the deflector hole that trapezoidal floating on piece opens up
The air-flow of blowout, can with liquid stream more sufficiently, contact more evenly, and reduce gas component velocity vertically upward, float valve
The gas passage sectional area of two sides is big, hence it is evident that reduces liquidating for gas-liquid two-phase, improves the hydrodynamic performance of column plate, make tower
Plate processing capacity and efficiency significantly improve；Six-way circle spray thrower, improves the degree of scatter of liquid material, to improve biography
Matter, heat transfer active surface, improve alternate contact, structure is simple, take up space it is small, production and it is easy for installation, production cost is low, can
Applicability is wide.
Beneficial effects of the present invention:
(1) process for reducing plume in flue gas in the present invention, uses room temperature clear water as absorbent, can both remove flue gas
In impurity, and the temperature of flue gas can be reduced, then handle through post precipitation, absorbent is returned in clear water reserviors, be recycled,
The discharge for reducing vapor simultaneously, reduces greenhouse effects；
(2) the trapezoidal Induced flow floating valve column plate designed in absorption tower, can with liquid stream more sufficiently, contact more evenly, hence it is evident that reduce
Liquidating for gas-liquid two-phase, improves the hydrodynamic performance of column plate, significantly improves column plate processing capacity and efficiency；
(3) the six-way circle spray thrower designed in absorption tower, improves alternate contact, and structure is simple, and take up space small, production and peace
Dress is convenient, production cost is low, usability is wide；
(4) agitating paddle used in the present invention, two paddles in left and right are triangle, and two triangles are similar, likelihood ratio 2:1,
The absorbent of different level can be made all to obtain sufficient stirring；The drag reduction hole being arranged on agitating paddle, it is possible to reduce stirring resistance,
Reduce the consumption of electric energy, save the cost.
Detailed description of the invention
Fig. 1 is that the present invention reduces the structural schematic diagram of the environmental protection equipment of plume and process flow of the invention in flue gas
Figure；
Fig. 2 is the structural schematic diagram on absorption tower in the present invention；
Fig. 3 is the structural schematic diagram of trapezoidal Induced flow floating valve column plate in the present invention；
Fig. 4 be in the present invention in Fig. 3 above column plate and valve opening A-A to structural schematic diagram；
Fig. 5 is the structural schematic diagram of six-way circle spray thrower in the present invention；
Fig. 6 is the structural schematic diagram of agitating paddle in the present invention；
In figure: 1- flue gas desulfurization device, the absorption tower 2-, 3- sedimentation basin, 4- clear water reserviors, 5- centrifugal pump, 6- electric trapper, 7- chimney,
The gas outlet 8-, 9- inlet, 10- six-way circle spray thrower, 11- overflow weir, the trapezoidal Induced flow floating valve column plate of 12-, the distribution of 13- gas
Device, 14- air inlet, 15- liquid outlet, 16- valve block, 17- valve leg, 18- valve foot, 19- valve opening, 20- flanging, 21- column plate section,
22- trapezoidal inclined plane, 23- ladder plane, 24- deflector hole, 25- charging supervisor, 26- liquid distribution cavity, 27- spray supervisor, 28- spray
Drench branch pipe, 29- spray apertures, 30- agitating device, 31- agitating paddle, 32- drag reduction hole.
Specific embodiment
The present invention is further illustrated below by embodiment, but is not limited to following embodiment.
Embodiment 1:
As shown in Fig. 1 ~ 6, a kind of environmental protecting device reducing plume in flue gas, including flue gas desulfurization device 1, flue gas desulfurization device 1
After be successively arranged absorption tower 2, sedimentation basin 3, clear water reserviors 4, centrifugal pump 5, electric trapper 6, chimney 7, the cigarette of the flue gas desulfurization device 1
Gas outlet is connect with the air inlet 14 of 2 side of absorption tower, the connection sedimentation basin 3 of liquid outlet 15 of 2 lower part of absorption tower, in sedimentation basin 3
Equipped with agitating device 30, for handling impurity in absorbent；Clear water reserviors 4 are connected after sedimentation basin 3, clear water reserviors 4 are connected by centrifugal pump 5
Connect the inlet 9 of 2 side of absorption tower；The connection of gas outlet 8 on 2 top of absorption tower is used for the electric trapper 6 of electric fishing dedusting, electric trapper 6
Upper outlet is connect with chimney 7.
In above-mentioned apparatus, 2 bottom of absorption tower is equipped with air inlet 14 and liquid outlet 15, and 14 pipe end of air inlet is equipped with gas
Distributor 13；Gas outlet 8 and inlet 9 are equipped at the top of absorption tower 2,9 pipeline of inlet connects six-way circle spray thrower 10, absorbs
Staggered trapezoidal Induced flow floating valve column plate 12 is equipped with inside tower 2, the end of trapezoidal Induced flow floating valve column plate 12 is equipped with overflow weir 11.
Further, in the trapezoidal Induced flow floating valve column plate 12,19 top of valve opening is trapezoidal valve block 16, and float valve includes valve block
16, valve leg 17, valve foot 18, flanging 20, can change fluid flow and flow direction, and the length of the trapezoidal valve block is 20-
100mm, width 15-35mm, valve leg height are 10-30mm.Further, two adjacent in the trapezoidal Induced flow floating valve column plate 12
The center of trapezoidal wave crest is 2-10mm away from L.
Further, trapezoidal base angle is 45 ° in the trapezoidal Induced flow floating valve column plate 12.
Further, trapezoidal inclined plane is equipped with 20-40 deflector hole 24 in the trapezoidal Induced flow floating valve column plate 12, trapezoidal flat
Face is equipped with 10-20 deflector hole, and the aperture of deflector hole is 1-5mm.
Further, 10 center of six-way circle spray thrower is equipped with liquid distribution cavity 26, is hollow cylindrical cavity, liquid
Six spray supervisors 27 are distributed in 26 outward radial of body distribution cavity, and two 27 ends of adjacent spray supervisor pass through the spray branch of arc
Pipe 28 connects, and six spray branch pipe 28 connections form an annulus.That is: branch pipe 28 is sprayed in the described six-way circle spray thrower 10 to set
In the position on spray supervisor 27 apart from 26 distalmost end of liquid distribution cavity.
Further, spray apertures 29 there are six being set in liquid distribution cavity 26 in the six-way circle spray thrower 10, size
It is identical；Every spray supervisor 27 is equipped with seven spray apertures, the pore size of spray apertures with remoter apart from liquid distribution cavity and
Bigger, minimum aperture is identical as the pore size of spray apertures in liquid distribution cavity；Spray there are five being set on every spray branch pipe 28
Hole, aperture is equal with the pore size of spray apertures on spray supervisor apart from liquid distribution cavity farthest, sprays on branch pipe 28
The center of circle spacing of two neighboring spray apertures is 10 °.
In above-mentioned apparatus, agitating device 30 is triangle agitating paddle in the sedimentation basin 3, and the left and right sides of agitating shaft is distinguished
Equipped with triangle agitating paddle 31 of different sizes, two paddles in left and right are triangle, and two triangles are similar, likelihood ratio 2:1；
Triangle drag reduction hole 32 is provided on two agitating paddles 31, drag reduction hole 32 is similar to agitating paddle 31, and drag reduction hole is also triangle, it
It is similar to the triangle agitating paddle at place, similar proportion 1:5.It (is all similar triangle, so with similar when indicating size
Than)
The present invention provides a kind of environment-protective process of plume in reduction flue gas, comprising the following steps:
(1) high-temperature flue gas come out from flue gas desulfurization device 1, enters absorption tower 2, and high-temperature flue gas is from 2 bottom of absorption tower
Air inlet 14 enter, be sufficiently diffused into absorption tower 2 through gas distributor 13, on trapezoidal Induced flow floating valve column plate 12 with absorbent
It coming into full contact with, has both realized removal of impurities, also achieve the cooling to flue gas, the flue gas after removal of impurities cooling is discharged at the top of absorption tower 2,
Towards electric trapper 6, electric fishing dedusting is carried out through electric trapper 6, obtains clean gas, then be discharged into atmosphere through chimney 7；
Absorbent in absorption tower 2 refers to room temperature clear water；
(2) at the same time, absorbent is pumped into absorption tower 2 from clear water reserviors 4 through centrifugal pump 5, passes through six-way circle spray thrower
10 is fully dispersed into absorption tower 2, then removes the impurity in flue gas with smoke contacts on trapezoidal Induced flow floating valve column plate 12,
It enters in sedimentation basin 3 from the liquid outlet of 2 bottom of absorption tower, by adding flocculant, under the action of agitating device 30, is formed
Sludge and other impurities enter impurity storage place from 3 lower part of sedimentation basin；Deimpurity absorbent is gone to be passed into clear water reserviors again
In 4, it is recycled.
In above-mentioned technique, the flocculant is cheap lime, lime stone or the alkaline solution prepared with calcium carbonate medicament.
Claims (9)
1. a kind of environmental protecting device for reducing plume in flue gas, including flue gas desulfurization device, it is characterised in that: after flue gas desulfurization device
Be successively arranged absorption tower, sedimentation basin, clear water reserviors, centrifugal pump, electric trapper, chimney, the exhanst gas outlet of the flue gas desulfurization device with
The air inlet of absorption tower side connects, and the liquid outlet of absorption tower lower part connects sedimentation basin, is equipped with agitating device in sedimentation basin, is used for
Handle impurity in absorbent；Clear water reserviors are connected after sedimentation basin, clear water reserviors connect the inlet of absorption tower side by centrifugal pump；It inhales
The gas outlet connection for receiving tower top is used for the electric trapper of electric fishing dedusting, and electric trapper upper outlet is connect with chimney.
2. it is according to claim 1 reduce flue gas in plume environmental protecting device, it is characterised in that: absorb the bottom of the tower be equipped with into
Port and liquid outlet, air inlet duct end are equipped with gas distributor；Gas outlet and inlet, inlet are equipped at the top of absorption tower
Pipeline connects six-way circle spray thrower, is equipped with staggered trapezoidal Induced flow floating valve column plate, trapezoidal Induced flow floating valve inside absorption tower
The end of column plate is equipped with overflow weir.
3. the environmental protecting device according to claim 2 for reducing plume in flue gas, it is characterised in that: the trapezoidal Induced flow floating valve
In column plate, valve opening top is trapezoidal valve block, can change fluid flow and flow direction, the length of valve block is 20-100mm, wide
Degree is 15-35mm, and valve leg height is 10-30mm；The center at two adjacent trapezoidal wave peaks is away from L in the trapezoidal Induced flow floating valve column plate
2-10mm；Trapezoidal base angle is 45 ° in the trapezoidal Induced flow floating valve column plate.
4. the environmental protecting device according to claim 2 for reducing plume in flue gas, it is characterised in that: the trapezoidal Induced flow floating valve
Trapezoidal inclined plane is equipped with 20-40 deflector hole in column plate, and ladder plane is equipped with 10-20 deflector hole, and the aperture of deflector hole is equal
For 1-5mm.
5. the environmental protecting device according to claim 2 for reducing plume in flue gas, it is characterised in that: the six-way circle spray
Device center is equipped with liquid distribution cavity, is hollow cylindrical cavity, and liquid distribution cavity outward radial is distributed with six sprays and is responsible for, and two
A adjacent spray supervisor end is connected by the spray branch pipe of arc, and six spray branch pipes connect to form an annulus.
6. the environmental protecting device according to claim 5 for reducing plume in flue gas, it is characterised in that: the six-way circle spray
The identical spray apertures of size there are six being set in liquid distribution cavity in device；Every spray supervisor is equipped with seven spray apertures, spray
The pore size in hole is with, minimum aperture and liquid distribution cavity in the pore size of spray apertures remoter and bigger apart from liquid distribution cavity
It is identical；It is set on every spray branch pipe there are five spray apertures, aperture and spray are responsible for the spray apart from liquid distribution cavity farthest
The pore size for drenching hole is equal, and the center of circle spacing for spraying two neighboring spray apertures on branch pipe is 10 °.
7. the environmental protecting device according to claim 1 for reducing plume in flue gas, it is characterised in that: stirred in the sedimentation basin
Device is triangle agitating paddle, and agitating shaft is respectively arranged on the left side and the right side triangle agitating paddle of different sizes, two paddles in left and right
It is triangle, two triangles are similar, likelihood ratio 2:1；Triangle drag reduction hole, drag reduction hole are provided on two agitating paddles
It is triangle, it is similar to the triangle agitating paddle at place, likelihood ratio 1:5.
8. a kind of environment-protective process for reducing plume in flue gas, using plume in the described in any item reduction flue gases of claim 1 ~ 7
Environmental protecting device, it is characterised in that: the following steps are included:
(1) high-temperature flue gas come out from flue gas desulfurization device, enters absorption tower, air inlet of the high-temperature flue gas from absorb the bottom of the tower
Mouth enters, and is sufficiently diffused into absorption tower, comes into full contact on trapezoidal Induced flow floating valve column plate with absorbent, both through gas distributor
Removal of impurities is realized, the cooling to flue gas is also achieved, the flue gas after removal of impurities cooling is discharged at the top of absorption tower, lead to electric trapper,
Electric fishing dedusting is carried out through electric trapper, obtains clean gas, then through smoke stack emission into atmosphere；
Absorbent in absorption tower refers to room temperature clear water；
(2) at the same time, absorbent is pumped into absorption tower from clear water reserviors through centrifugal pump, abundant by six-way circle spray thrower
It is distributed in tower, then the impurity in flue gas is removed, from absorb the bottom of the tower with smoke contacts on trapezoidal Induced flow floating valve column plate
Liquid outlet enters in sedimentation basin, by adding flocculant, under the action of agitating device, forms sludge and other impurities, from
Sedimentation basin lower part enters at impurity storage；It is gone deimpurity absorbent to be passed into clear water reserviors again, is recycled.
9. the environment-protective process according to claim 8 for reducing plume in flue gas, it is characterised in that: the flocculant is stone
Ash, lime stone or the alkaline solution prepared with calcium carbonate medicament.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811510165.8A CN109482041B (en) | 2018-12-11 | 2018-12-11 | Environment-friendly device and process for reducing smoke plume in smoke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811510165.8A CN109482041B (en) | 2018-12-11 | 2018-12-11 | Environment-friendly device and process for reducing smoke plume in smoke |
Publications (2)
| Publication Number | Publication Date |
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| CN109482041A true CN109482041A (en) | 2019-03-19 |
| CN109482041B CN109482041B (en) | 2021-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811510165.8A Expired - Fee Related CN109482041B (en) | 2018-12-11 | 2018-12-11 | Environment-friendly device and process for reducing smoke plume in smoke |
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| CN117258525A (en) * | 2023-11-21 | 2023-12-22 | 福建英辉新材料科技有限公司 | Desulfurizing tower with adjustable multilayer |
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| CN109482041B (en) | 2021-11-12 |
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