CN117258507A - Power plant tail gas purification device and purification method - Google Patents
Power plant tail gas purification device and purification method Download PDFInfo
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- CN117258507A CN117258507A CN202311478519.6A CN202311478519A CN117258507A CN 117258507 A CN117258507 A CN 117258507A CN 202311478519 A CN202311478519 A CN 202311478519A CN 117258507 A CN117258507 A CN 117258507A
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- 238000000746 purification Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000001179 sorption measurement Methods 0.000 claims abstract description 48
- 239000002245 particle Substances 0.000 claims abstract description 31
- 238000009689 gas atomisation Methods 0.000 claims abstract description 23
- 239000012535 impurity Substances 0.000 claims abstract description 20
- 238000001914 filtration Methods 0.000 claims description 25
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 16
- 239000011248 coating agent Substances 0.000 claims description 16
- 238000000576 coating method Methods 0.000 claims description 16
- 239000003513 alkali Substances 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 15
- 239000000919 ceramic Substances 0.000 claims description 14
- 239000010419 fine particle Substances 0.000 claims description 14
- 239000007921 spray Substances 0.000 claims description 12
- 239000002356 single layer Substances 0.000 claims description 10
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 6
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 6
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- 239000004677 Nylon Substances 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 239000003365 glass fiber Substances 0.000 claims description 4
- 229920001778 nylon Polymers 0.000 claims description 4
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 4
- 229920001661 Chitosan Polymers 0.000 claims description 3
- 229910021536 Zeolite Inorganic materials 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 3
- 125000002091 cationic group Chemical group 0.000 claims description 3
- 229910052878 cordierite Inorganic materials 0.000 claims description 3
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 claims description 3
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 3
- 230000003472 neutralizing effect Effects 0.000 claims description 3
- 229920002401 polyacrylamide Polymers 0.000 claims description 3
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 3
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 3
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 3
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 3
- 239000004408 titanium dioxide Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000010457 zeolite Substances 0.000 claims description 3
- AMTWCFIAVKBGOD-UHFFFAOYSA-N dioxosilane;methoxy-dimethyl-trimethylsilyloxysilane Chemical compound O=[Si]=O.CO[Si](C)(C)O[Si](C)(C)C AMTWCFIAVKBGOD-UHFFFAOYSA-N 0.000 claims 1
- 229940083037 simethicone Drugs 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 7
- 239000007789 gas Substances 0.000 description 113
- 238000005507 spraying Methods 0.000 description 10
- 239000000243 solution Substances 0.000 description 6
- 239000012670 alkaline solution Substances 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 239000002912 waste gas Substances 0.000 description 4
- 229920000742 Cotton Polymers 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 241000220317 Rosa Species 0.000 description 2
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 229920002545 silicone oil Polymers 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000003758 nuclear fuel Substances 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000000779 smoke Substances 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
- B01D53/75—Multi-step processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
- B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
-
- 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
- B01D53/007—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 irradiation
-
- 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
- B01D53/02—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 adsorption, e.g. preparative gas chromatography
- B01D53/04—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 adsorption, e.g. preparative gas chromatography with stationary adsorbents
-
- 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
- B01D53/38—Removing components of undefined structure
- B01D53/40—Acidic components
-
- 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
- B01D53/76—Gas phase processes, e.g. by using aerosols
-
- 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
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/81—Solid phase processes
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Toxicology (AREA)
- Dispersion Chemistry (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a power plant tail gas purification device and a purification method, wherein the purification device comprises a tail gas pretreatment box, a tail gas adsorption filter box, a tail gas atomization box and a tail gas purification box; the impurity particle filter component can filter large particle impurities in tail gas, and the subsequent purifying effect is improved.
Description
Technical Field
The invention relates to the technical field of tail gas purification, in particular to a power plant tail gas purification device and a purification method.
Background
A power plant is also called a power plant, and is a plant that converts various primary energy sources stored in nature into electric energy (secondary energy sources). At the end of the 19 th century, as the demand for electricity increases, the idea of establishing an electricity production center has begun to be proposed. The development of motor manufacturing technology expands the application range of electric energy, the need for electricity for production increases rapidly, and power plants are accompanied. There are a variety of power generation pathways in power plants: thermal power plants, hydroelectric power plants, solar (photovoltaic) power plants, wind power plants, tidal power plants and the like. While nuclear power plants, which use nuclear fuel as an energy source, have played an increasing role in many countries around the world.
At present, the waste gas of a power plant (taking heavy oil and coal as fuel) is directly discharged into an atmosphere, namely, the waste gas is discharged at high altitude by utilizing a chimney. Because the generator of the power plant works for a long time (24 hours of continuous uninterrupted operation), the emission is large, and various harmful gases and smoke dust cause serious pollution to the atmosphere. Therefore, it is necessary to design a power plant exhaust gas purifying apparatus to solve the above-mentioned problems.
Disclosure of Invention
The invention aims to provide a power plant tail gas purification device and a purification method, which are used for solving the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the purifying device comprises a tail gas pretreatment box, a tail gas adsorption and filtration box, a tail gas atomization box and a tail gas tail end purifying box;
the tail gas pretreatment box is characterized in that a tail gas inlet pipe is arranged at the air inlet end of the tail gas pretreatment box, an impurity particle filtering component is arranged in the inner cavity of the tail gas pretreatment box, the air outlet end of the tail gas pretreatment box is connected with the air inlet end of the tail gas adsorption filter box through a first pipeline, the air outlet end of the tail gas adsorption filter box is connected with the air inlet end of the tail gas atomization box through a second pipeline, the air outlet end of the tail gas atomization box is connected with the air inlet end of the tail gas tail end purifying box through a third pipeline, and an exhaust pipeline is arranged at the air outlet end of the tail gas tail end purifying box.
Preferably, the application provides a power plant tail gas cleanup unit, wherein, impurity granule filtration subassembly includes screen frame, first active carbon filter screen, wire net, filter pulp and second active carbon filter screen are installed in the screen frame in proper order, tail gas pretreatment case up end installation slot, the screen frame inserts in the slot.
Preferably, the application provides a power plant tail gas purification device, wherein, tail gas adsorption filtration incasement installation tail gas adsorption component, tail gas adsorption component includes tail gas filter screen, first adsorption coating and second adsorption coating are coated in tail gas filter screen two sides respectively.
Preferably, the present application provides a power plant exhaust gas purification device, wherein: the first adsorption coating and the second adsorption coating comprise, by weight, 20-30 parts of zeolite, 4-10 parts of alumina sol, 1-3 parts of polyvinylpyrrolidone, 8-18 parts of chitosan, 1-4 parts of cationic polyacrylamide, 2-8 parts of calcium carbonate, 5-15 parts of cordierite, 4-10 parts of dimethyl silicone oil and 5-10 parts of mesoporous titanium dioxide.
Preferably, the application provides a power plant tail gas purification device, wherein, install the spray assembly in the tail gas atomizing case, spray assembly includes shower, spray nozzle and alkali lye and deposits the case, the shower is installed in tail gas atomizing incasement roof, the equidistant installation of spray nozzle is on the shower, the alkali lye is deposited the case and is installed in tail gas atomizing case top, just the shower communicates with the shower, the alkali lye is deposited incasement and is installed the liquid pump.
Preferably, the application provides a power plant tail gas purification device, wherein, alkaline solution is deposited to the alkali lye and is held the incasement, alkaline solution comprises 40% sodium bicarbonate solution, 20% sodium carbonate solution, 40% water.
Preferably, the application provides a power plant tail gas purification device, wherein, tail gas end purifying box is interior to set up tail gas purification subassembly, tail gas purification subassembly includes first individual layer ceramic porous filter, second individual layer ceramic porous filter, first microwave generator, second microwave generator, ozone generator sets up between first microwave generator and second microwave generator, first individual layer ceramic porous filter sets up in second microwave generator one side, second individual layer ceramic porous filter sets up in first microwave generator one side.
Preferably, the application provides a power plant tail gas cleanup unit, wherein, the terminal purifying box of tail gas is given vent to anger and is held the inboard fine particle filter screen subassembly of still installing, fine particle filter screen subassembly is including the elementary nylon particle filter screen, the medium-efficient glass fiber particle filter screen and the high-efficient tetrafluoroethylene particle filter screen that set gradually.
Preferably, the present application provides a power plant exhaust gas purification device, wherein, its purification method includes the following steps:
A. the tail gas of the power plant enters a tail gas pretreatment box through a tail gas inlet pipe;
B. the tail gas is filtered to remove large-particle impurities through an impurity particle filtering component;
C. the tail gas after primary filtration is discharged into a tail gas adsorption filter box;
D. adsorbing, filtering and removing peculiar smell from the tail gas through a tail gas adsorption assembly;
E. the filtered tail gas is discharged into a tail gas atomization box;
F. pumping alkaline liquid in the alkaline liquid storage box into a nozzle, enabling the alkaline liquid sprayed out by the nozzle to contact with tail gas, and neutralizing the tail gas;
G. the neutralized tail gas is discharged into a tail gas tail end purifying box, and harmful substances in the tail gas are further decomposed;
H. and finally, the gas is discharged after further filtering fine particles through a fine particle filter screen assembly.
Compared with the prior art, the invention has the beneficial effects that:
(1) The invention has novel structural design and good environmental protection performance, can realize the adsorption, filtration and purification treatment of the tail gas of the power plant, and has high tail gas treatment efficiency and low treatment cost.
(2) The impurity particle filter assembly adopted by the invention can filter large particle impurities in the tail gas, and the subsequent purifying effect is improved.
(3) The tail gas adsorption component adopted by the invention can further adsorb and filter harmful substances in the tail gas, and improves the purification effect.
(4) The spraying component adopted by the invention can spray alkaline liquid and tail gas to perform neutralization reaction, and the purification effect is improved.
(5) The tail gas purifying component adopted by the invention can effectively decompose and convert harmful gases, so that the waste gas is purified fully, and the purifying efficiency is improved greatly.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the structure of the impurity particle filter assembly of the present invention;
FIG. 3 is a schematic view of the tail gas adsorption module according to the present invention;
FIG. 4 is a schematic view of the exhaust purifying assembly according to the present invention;
FIG. 5 is a schematic view of a fine particle filter assembly according to the present invention;
FIG. 6 is a flow chart of the purification method of the present invention;
in the figure: the device comprises a tail gas pretreatment box 1, a tail gas adsorption filter box 2, a tail gas atomization box 3, a tail gas tail end purification box 4, a tail gas inlet pipe 5, an impurity particle filter assembly 6, a first pipeline 7, a second pipeline 8, a third pipeline 9, an exhaust pipeline 10, a frame 11, a first activated carbon filter screen 12, a steel wire mesh 13, filter cotton 14, a second activated carbon filter screen 15, a slot 16, a tail gas adsorption assembly 17, a tail gas filter screen 18, a first adsorption coating 19, a second adsorption coating 20, a spray pipe 21, a spray nozzle 22, an alkali lye storage box 23, a liquid pump 24, a tail gas purification assembly 25, a first single-layer ceramic porous filter plate 26, a second single-layer ceramic porous filter plate 27, a first microwave generator 28, a second microwave generator 29, an ozone generator 30, a fine particle filter screen assembly 31, a primary nylon particle filter screen 32, a medium-efficiency glass fiber particle filter screen 33 and a high-efficiency tetrafluoroethylene particle filter screen 34.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-6, the present invention provides a technical solution: the purifying device for the tail gas of the power plant comprises a tail gas pretreatment box 1, a tail gas adsorption and filtration box 2, a tail gas atomization box 3 and a tail gas tail end purifying box 4;
the tail gas pretreatment case 1 air inlet end installation tail gas intake pipe 5, the impurity particle filtration subassembly 6 is installed to tail gas pretreatment case 1 inner chamber, be connected through first pipeline 7 between tail gas pretreatment case 1 air outlet end and the tail gas adsorption rose box 2 air inlet end, be connected through second pipeline 8 between tail gas adsorption rose box 2 air outlet end and the tail gas atomizing case 3 air inlet end, be connected through third pipeline 9 between tail gas atomizing case 3 air outlet end and the tail gas terminal purifying case 4 air inlet end, tail gas terminal purifying case 4 air outlet end installation exhaust duct 10.
In the invention, the impurity particle filtering component 6 comprises a screen frame 11, a first activated carbon filter screen 12, a steel wire mesh 13, filter cotton 14 and a second activated carbon filter screen 15, wherein the first activated carbon filter screen 12, the steel wire mesh 13, the filter cotton 14 and the second activated carbon filter screen 15 are sequentially arranged in the screen frame 11, a slot 16 is arranged on the upper end surface of the tail gas pretreatment box 1, and the screen frame 11 is inserted into the slot 16. The impurity particle filter assembly adopted by the invention can filter large particle impurities in the tail gas, and the subsequent purifying effect is improved.
In the invention, a tail gas adsorption assembly 17 is arranged in a tail gas adsorption filter box 2, the tail gas adsorption assembly 17 comprises a tail gas filter screen 18, a first adsorption coating 19 and a second adsorption coating 20, and the first adsorption coating 19 and the second adsorption coating 20 are respectively coated on two sides of the tail gas filter screen 18; the components of the first adsorption coating 19 and the second adsorption coating 20 comprise, by weight, 20-30 parts of zeolite, 4-10 parts of alumina sol, 1-3 parts of polyvinylpyrrolidone, 8-18 parts of chitosan, 1-4 parts of cationic polyacrylamide, 2-8 parts of calcium carbonate, 5-15 parts of cordierite, 4-10 parts of dimethyl silicone oil and 5-10 parts of mesoporous titanium dioxide. The tail gas adsorption component adopted by the invention can further adsorb and filter harmful substances in the tail gas, and improves the purification effect.
In the invention, a spraying assembly is arranged in a tail gas atomization box 3, the spraying assembly comprises a spraying pipe 21, a spraying nozzle 22 and an alkali liquor storage box 23, the spraying pipe 21 is arranged on the inner top wall of the tail gas atomization box 3, the spraying nozzle 22 is arranged on the spraying pipe 21 at equal intervals, the alkali liquor storage box 23 is arranged on the top of the tail gas atomization box 3, the spraying pipe 21 is communicated with the alkali liquor storage box 23, and a liquid pump 24 is arranged in the alkali liquor storage box 23; the alkali liquor storage box 23 is filled with an alkaline solution, and the alkaline solution consists of 40% sodium bicarbonate solution, 20% sodium carbonate solution and 40% water. The spraying component adopted by the invention can spray alkaline liquid and tail gas to perform neutralization reaction, and the purification effect is improved.
In addition, in the invention, an exhaust gas purifying component 25 is arranged in the exhaust gas tail end purifying box 4, the exhaust gas purifying component 25 comprises a first single-layer ceramic porous filter plate 26, a second single-layer ceramic porous filter plate 27, a first microwave generator 28, a second microwave generator 29 and an ozone generator 30, the ozone generator 30 is arranged between the first microwave generator 28 and the second microwave generator 29, the first single-layer ceramic porous filter plate 26 is arranged on one side of the second microwave generator 29, and the second single-layer ceramic porous filter plate 27 is arranged on one side of the first microwave generator 28; the tail gas end purifying box 25 is provided with a fine particle filter screen assembly 31 at the inner side of the gas outlet end, and the fine particle filter screen assembly 31 comprises a primary nylon particle filter screen 32, a medium-efficiency glass fiber particle filter screen 33 and a high-efficiency tetrafluoroethylene particle filter screen 34 which are sequentially arranged. The tail gas purifying component adopted by the invention can effectively decompose and convert harmful gases, so that the waste gas is purified fully, and the purifying efficiency is improved greatly.
Working principle: the purification method of the invention comprises the following steps:
A. the tail gas of the power plant enters a tail gas pretreatment box through a tail gas inlet pipe;
B. the tail gas is filtered to remove large-particle impurities through an impurity particle filtering component;
C. the tail gas after primary filtration is discharged into a tail gas adsorption filter box;
D. adsorbing, filtering and removing peculiar smell from the tail gas through a tail gas adsorption assembly;
E. the filtered tail gas is discharged into a tail gas atomization box;
F. pumping alkaline liquid in the alkaline liquid storage box into a nozzle, enabling the alkaline liquid sprayed out by the nozzle to contact with tail gas, and neutralizing the tail gas;
G. the neutralized tail gas is discharged into a tail gas tail end purifying box, and harmful substances in the tail gas are further decomposed;
H. and finally, the gas is discharged after further filtering fine particles through a fine particle filter screen assembly.
In conclusion, the invention has novel structural design and good environmental protection performance, can realize the adsorption, filtration and purification treatment of the tail gas of the power plant, and has high tail gas treatment efficiency and low treatment cost.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (9)
1. The utility model provides a power plant tail gas purification device which characterized in that: the purification device comprises a tail gas pretreatment box (1), a tail gas adsorption filter box (2), a tail gas atomization box (3) and a tail gas tail end purification box (4);
the device is characterized in that a tail gas inlet pipe (5) is arranged at the air inlet end of the tail gas pretreatment box (1), an impurity particle filtering component (6) is arranged in the inner cavity of the tail gas pretreatment box (1), the air outlet end of the tail gas pretreatment box (1) is connected with the air inlet end of the tail gas adsorption filtering box (2) through a first pipeline (7), the air outlet end of the tail gas adsorption filtering box (2) is connected with the air inlet end of the tail gas atomization box (3) through a second pipeline (8), the air outlet end of the tail gas atomization box (3) is connected with the air inlet end of the tail gas tail end purifying box (4) through a third pipeline (9), and an exhaust pipeline (10) is arranged at the air outlet end of the tail gas tail end purifying box (4).
2. The power plant exhaust gas purifying apparatus according to claim 1, wherein: impurity particle filtration subassembly (6) are including screen frame (11), first active carbon filter screen (12), wire net (13), filter pulp (14) and second active carbon filter screen (15) are installed in the screen frame (11) in proper order, terminal surface installation slot (16) on tail gas pretreatment case (1), in slot (16) are inserted in screen frame (11).
3. The power plant exhaust gas purifying apparatus according to claim 1, wherein: install tail gas adsorption component (17) in tail gas adsorption filter case (2), tail gas adsorption component (17) are including tail gas filter screen (18), first adsorption coating (19) and second adsorption coating (20) are coated in tail gas filter screen (18) both sides respectively.
4. The power plant exhaust gas purifying apparatus according to claim 1, wherein: the components of the first adsorption coating (19) and the second adsorption coating (20) comprise, by weight, 20-30 parts of zeolite, 4-10 parts of alumina sol, 1-3 parts of polyvinylpyrrolidone, 8-18 parts of chitosan, 1-4 parts of cationic polyacrylamide, 2-8 parts of calcium carbonate, 5-15 parts of cordierite, 4-10 parts of simethicone and 5-10 parts of mesoporous titanium dioxide.
5. The power plant exhaust gas purifying apparatus according to claim 1, wherein: the utility model provides an install spray assembly in tail gas atomizing case (3), spray assembly includes shower (21), spray nozzle (22) and alkali lye storage box (23), shower (21) are installed in tail gas atomizing case (3) roof, spray nozzle (22) equidistant install on shower (21), alkali lye storage box (23) are installed in tail gas atomizing case (3) top, just shower (21) and alkali lye storage box (23) intercommunication, install liquid pump (24) in alkali lye storage box (23).
6. The power plant exhaust gas purifying apparatus according to claim 5, wherein: the alkali liquor storage box (23) is internally filled with alkaline liquor, and the alkaline liquor consists of 40% sodium bicarbonate solution, 20% sodium carbonate solution and 40% water.
7. The power plant exhaust gas purifying apparatus according to claim 1, wherein: tail gas purification subassembly (25) are set up in tail gas terminal purifying box (4), tail gas purification subassembly (25) are including first single-layer ceramic porous filter (26), second single-layer ceramic porous filter (27), first microwave generator (28), second microwave generator (29), ozone generator (30) set up between first microwave generator (28) and second microwave generator (29), first single-layer ceramic porous filter (26) set up in second microwave generator (29) one side, second single-layer ceramic porous filter (27) set up in first microwave generator (28) one side.
8. The power plant exhaust gas purifying apparatus according to claim 1, wherein: the tail gas tail end purifying box (25) is provided with a fine particle filter screen assembly (31) at the inner side of the gas outlet end, and the fine particle filter screen assembly (31) comprises a primary nylon particle filter screen (32), a medium-efficiency glass fiber particle filter screen (33) and a high-efficiency tetrafluoroethylene particle filter screen (34) which are sequentially arranged.
9. A purification method for realizing the power plant exhaust gas purification device according to claim 1, characterized in that: the purification method comprises the following steps:
A. the tail gas of the power plant enters a tail gas pretreatment box through a tail gas inlet pipe;
B. the tail gas is filtered to remove large-particle impurities through an impurity particle filtering component;
C. the tail gas after primary filtration is discharged into a tail gas adsorption filter box;
D. adsorbing, filtering and removing peculiar smell from the tail gas through a tail gas adsorption assembly;
E. the filtered tail gas is discharged into a tail gas atomization box;
F. pumping alkaline liquid in the alkaline liquid storage box into a nozzle, enabling the alkaline liquid sprayed out by the nozzle to contact with tail gas, and neutralizing the tail gas;
G. the neutralized tail gas is discharged into a tail gas tail end purifying box, and harmful substances in the tail gas are further decomposed;
H. and finally, the gas is discharged after further filtering fine particles through a fine particle filter screen assembly.
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| Application Number | Priority Date | Filing Date | Title |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117463111A (en) * | 2023-12-28 | 2024-01-30 | 山西格瑞思科技有限公司 | CO (carbon monoxide) 2 Gas separation apparatus and method of use thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117463111A (en) * | 2023-12-28 | 2024-01-30 | 山西格瑞思科技有限公司 | CO (carbon monoxide) 2 Gas separation apparatus and method of use thereof |
| CN117463111B (en) * | 2023-12-28 | 2024-03-05 | 山西格瑞思科技有限公司 | CO (carbon monoxide) 2 Gas separation apparatus and method of use thereof |
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