CN106823666A - A kind of application water-vapor plasma processes the device of flue gas - Google Patents
A kind of application water-vapor plasma processes the device of flue gas Download PDFInfo
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- CN106823666A CN106823666A CN201611244344.2A CN201611244344A CN106823666A CN 106823666 A CN106823666 A CN 106823666A CN 201611244344 A CN201611244344 A CN 201611244344A CN 106823666 A CN106823666 A CN 106823666A
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- spray column
- flue gas
- water
- spray
- gas
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- 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
-
- 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
- B01D53/32—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 electrical effects other than those provided for in group B01D61/00
-
- 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
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
-
- 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
- B01D53/48—Sulfur compounds
- B01D53/52—Hydrogen sulfide
-
- 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
- B01D53/54—Nitrogen compounds
- B01D53/56—Nitrogen oxides
-
- 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
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/818—Employing electrical discharges or the generation of a plasma
Abstract
The present invention relates to the device that a kind of application water-vapor plasma processes flue gas, at least include the first spray column, the second spray column, plasma generator and flash tank, input water vapour in plasma generator, the first gas explosion device is provided with the first spray column, it is provided with the second gas explosion device in second spray column, plasma generator output end is formed with the second gas explosion device and connected with to being input into water-vapor plasma in the second gas explosion device；First spray tower bottom is communicated with flue, and the first conveyance conduit is communicated between the first spray column and the second spray column, and reaction is formed into the plasma that the mixed liquor in the second spray column and the second gas explosion device are sprayed；Mixed liquor in second spray column enters in flash tank, by entering the first gas explosion device after flash tank flash distillation.Equipment relatively easy in structure of the present invention, input is few, low cost of manufacture, and thorough purified treatment is carried out to flue gas, lifts the purification efficiency and effect of flue gas.
Description
Technical field
The present invention relates to the device that a kind of application water-vapor plasma processes flue gas.
Background technology
With developing rapidly for national economy, environmental pollution and ecological disruption are on the rise, and country is to air quality control
It is more and more tighter.The industries such as domestic chemical industry, smelting, building materials, still largely use coal unit, and the flue gas of generation are China's air
One of main source of pollution.When processing pollutant in flue gas at present, washed frequently with addition inorganic agent, i.e., first
Removing pretreatment is carried out to the dust in flue gas, while being washed to contaminant gases in flue gas.Either above-mentioned washing
Wet method, or the semidry method that uses and dry method carry out fume treatment, still suffer from that treatment effeciency is low, cost in the treatment technology of flue gas
High the problems such as, it is difficult to meet the requirement of energy-conserving and environment-protective.
The content of the invention
For above-mentioned technical problem, it is an object of the invention to provide a kind of reasonable in design, treatment effeciency is high and uses
The application water-vapor plasma of low cost processes the device of flue gas.
Realize that technical scheme is as follows：
A kind of application water-vapor plasma processes the device of flue gas, at least including the first spray column, the second spray column, etc.
Water vapour is input into plasma generator and flash tank, the plasma generator and water vapour is ionized into water vapour etc.
Exported after gas ions, the first gas explosion device that oriented bottom of towe sprays water and steam, the second spray are set in the first spray column
The second gas explosion device is provided with tower, the plasma generator output end is formed with the second gas explosion device and connected with to the second gas
Water-vapor plasma is input into quick-fried device；
The first spray tower bottom is communicated with to the flue that flue gas is input into the first spray column, by flue
The flue gas being input into the first spray column is mixed with the water and steam under spray in the first spray column；First spray column with
Be communicated with the first delivery pipe mixed liquor formed in the first spray column being transported in the second spray column between second spray column
Road, reaction is formed into the plasma that the mixed liquor in the second spray column and the second gas explosion device are sprayed；Second spray
The mixed liquor formed after reaction in tower is entered in flash tank by the second conveyance conduit, by entering the first gas after flash tank flash distillation
Water and steam is formed in quick-fried device to spray in flue gas in the first spray column.
Contain SO in the flue gas2When, reaction generation sulfuric acid；Reactive chemistry formula：H2O (plasma state)+SO2=H2+SO3,
SO3+H2O=H2SO4。
When containing nitrogen oxides in the flue gas, reaction generation nitric acid；Reactive chemistry formula：H2O (plasma state)+NO=H2+
NO2,3NO2+H2O=2HNO3+NO。
When containing hydrogen sulfide in the flue gas, reaction generation sulfuric acid；Reactive chemistry formula is：2H2S+3O2=2H2O+2SO2,
H2O (plasma state)+SO2=H2+SO3,SO3+H2O=H2SO4。
Above-mentioned technical proposal is employed, water vapour enters plasma generator by the input of plasma generator
In, water vapour is ionized into by water-vapor plasma (living radical by plasma generator：+ H ,-OH), then from etc.
The medium outlet side of plasma generator is distributed in the second spray column into the second gas explosion device；And need flue gas to be processed
(flue gas in 300 DEG C) first carries out dust removing pretreatment, and the flue gas after removing dust enters the first spray by flue
In tower, mixed with water vapour with the gas under the sprinkling of the first gas explosion device, pre-reaction is carried out with to the pollutant in flue gas
Treatment, the pollutant in flue gas is merged and is formed liquid deposition in the bottom of the first spray column with the water vapour under spray,
Then the liquid solution of the first spray tower bottom is entered in the second spray column by the first conveyance conduit, with the first gas explosion device point
The water-vapor plasma that cloth goes out carries out fusion reaction, and the flue gas pollutant that will be incorporated in liquid is processed, and the second spray
Reacted liquid in tower is drenched to be sprayed out by the first gas explosion device after the flash distillation of flash tank in the first spray column is recycled to
Gas-liquid mixed gas, carries out fusion treatment, by continuous circular treatment, energy with to the follow-up flue gas into the first spray column
It is enough thoroughly to process the pollutant in flue gas.The present invention can be by interior two spray columns for setting gas explosion device, a plasma
Body generator, a flash tank and corresponding pipeline constitute the circulating device processed flue gas, letter relatively in structure
Single, input equipment is few, low cost of manufacture, and during fume treatment, constantly circular response can be carried out with to flue gas
Thorough purified treatment, lifts the purification efficiency and effect of flue gas；In addition, being logical to the inorganic agent that pollutant in flue gas is processed
The water vapour for entering by plasma generator carry out it is plasmarized after water-vapor plasma, because water vapour is easy to get,
So as to also just reduce the use cost of fume treatment.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
In figure：1 is the first spray column, and 2 is the second spray column, and 3 is plasma generator, and 4 is flash tank, and 5 is first
Gas explosion device, 6 is the second gas explosion device, and 7 is flue, and 8 is the first conveyance conduit, and 9 is delivery pump, and 10 is the second delivery pipe
Road.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
Accompanying drawing, the technical scheme to the embodiment of the present invention is clearly and completely described.Obviously, described embodiment is this hair
Bright a part of embodiment, rather than whole embodiments.Based on described embodiments of the invention, ordinary skill
The every other embodiment that personnel are obtained on the premise of without creative work, belongs to the scope of protection of the invention.
As shown in figure 1, a kind of application water-vapor plasma processes the device of flue gas, at least including the first spray column 1, the
Water vapour is input into two spray columns 2, plasma generator 3 and flash tank 4, plasma generator and water vapour is ionized
Exported after into water-vapor plasma, the first gas explosion device that oriented bottom of towe sprays water and steam is set in the first spray column
5, be provided with the second gas explosion device 6 in the second spray column, plasma generator output end formed with the second gas explosion device connect with
To being input into water-vapor plasma in the second gas explosion device；Gas explosion device in order to by medium therein formed it is vaporific send forth and
Go out, to increase the swept area of the lower medium of sprinkling；Flue gas is into having a process for rising in the first spray column, it is thus possible to
Medium under first gas explosion device spray produces the fusion that crosses, and the gas explosion device in the first spray column is in upper in spray column
Portion, so that the medium that will be sprayed sufficiently can carry out mixing increase contact surface with the flue gas entered in the first spray column
Product, lifts the efficiency and effect of mixing；The lower gas-liquid mixed of first gas explosion device sprinkling and flue gas combine to form liquid deposition in
The bottom of the first spray column, i.e. the first gas explosion device are in the top at the first spray column bottom liquid interface.
First spray tower bottom is communicated with to the flue 7 that flue gas is input into the first spray column, defeated by flue
The flue gas entered in the first spray column is mixed with the water and steam under spray in the first spray column；First spray column and the second spray
Be communicated with the first conveyance conduit 8 mixed liquor formed in the first spray column being transported in the second spray column between pouring tower,
Delivery pump 9 is equipped with first conveyance conduit, the mixed liquor of the first spray tower bottom is passively transported in the second spray column,
In implementation, it is also possible to do not assemble delivery pump on the first conveyance conduit, is disposed above by by the position of the first spray column
, be introduced into the water in the first spray column in the second spray column by gravity by the position of two spray columns, into the second spray column
The plasma that mixed liquor and the second gas explosion device are sprayed forms reaction；The mixed liquor formed after reaction in second spray column
Entered in flash tank by the second conveyance conduit 10, formed in the first gas explosion device water and water steaming by entering after flash tank flash distillation
Vapour is sprayed in flue gas in the first spray column.Flue gas after treatment can be discharged by the smoke discharging pipe connected on the first spray column
Outside device.
In force, the second gas explosion device is in the liquid surface lower section in the second spray column, so from the first spray column
The mixed liquor being transported in the second spray column submerges the second gas explosion device, and water vapour etc. of plasma generator discharge from
Daughter (air-liquid) enters in the second mixed liquor for spraying tower bottom, rolling can be produced to stir, to increase water-vapor plasma
Contact surface between mixed liquor, the reaction efficiency of polluter, i.e., whole oxygen in lifting water-vapor plasma and mixed liquor
Change reaction is carried out in a liquid, can be overcome in the prior art in atmosphere to the difficult of fume treatment and treatment effeciency is not high
Problem, the present apparatus is closed circulation system, can be to the polluter (SO that contains in flue gas2、NxO、H2S) carry out thoroughly
Treatment.Furthermore it is possible to the detector containing sulfuric acid concentration and concentration of nitric acid in detection liquid is set up in spray column, when detecting
When concentration reaches setting value, can be by the electronic valve on the discharging tube that spray column is connected by unlatching, by the liquid in spray column
Discharge, to realize automating the energy supply of discharge opeing.Wherein, when containing SO in flue gas2When, reaction generation sulfuric acid；Reactive chemistry formula：H2O
(plasma state)+SO2=H2+SO3,SO3+H2O=H2SO4.When nitrogen oxides is contained in flue gas, reaction generation nitric acid；Reaction
Chemical formula：H2O (plasma state)+NO=H2+NO2,3NO2+H2O=2HNO3+NO.When hydrogen sulfide is contained in flue gas, reaction life
Into sulfuric acid；Reactive chemistry formula is：2H2S+3O2=2H2O+2SO2,H2O (plasma state)+SO2=H2+SO3,SO3+H2O=H2SO4。
Claims (4)
1. a kind of application water-vapor plasma processes the device of flue gas, it is characterised in that at least including the first spray column, second
Water vapour is input into spray column, plasma generator and flash tank, the plasma generator and water vapour is ionized
Exported after into water-vapor plasma, the first gas explosion dress of oriented bottom of towe spray water and steam is set in the first spray column
Put, the second gas explosion device is provided with the second spray column, the plasma generator output end is formed with the second gas explosion device and connected
Pass to and be input into water-vapor plasma in the second gas explosion device；
The first spray tower bottom is communicated with to the flue that flue gas is input into the first spray column, is input into by flue
Flue gas in first spray column is mixed with the water and steam under spray in the first spray column；First spray column and second
The first conveyance conduit being transported to the mixed liquor formed in the first spray column in the second spray column is communicated between spray column, is entered
Enter the plasma formation reaction that the mixed liquor in the second spray column and the second gas explosion device are sprayed；It is anti-in second spray column
The mixed liquor that should be formed afterwards is entered in flash tank by the second conveyance conduit, by entering the first gas explosion device after flash tank flash distillation
Middle formation water and steam is sprayed in flue gas in the first spray column.
2. a kind of application water-vapor plasma according to claim 1 processes the device of flue gas, it is characterised in that described
Contain SO in flue gas2When, reaction generation sulfuric acid；Reactive chemistry formula：H2O+SO2=H2+SO3,SO3+H2O=H2SO4。
3. a kind of application water-vapor plasma according to claim 1 processes the device of flue gas, it is characterised in that described
When containing NxO in flue gas, reaction generation nitric acid；Reactive chemistry formula：H2O+NO=H2+NO2,3NO2+H2O=2HNO3+NO。
4. a kind of application water-vapor plasma according to claim 1 processes the device of flue gas, it is characterised in that described
Contain H in flue gas2During S, reaction generation sulfuric acid；
Reactive chemistry formula：2H2S+3O2=2H2O+2SO2,H2O+SO2=H2+SO3,SO3+H2O=H2SO4。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611244344.2A CN106823666A (en) | 2016-12-29 | 2016-12-29 | A kind of application water-vapor plasma processes the device of flue gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611244344.2A CN106823666A (en) | 2016-12-29 | 2016-12-29 | A kind of application water-vapor plasma processes the device of flue gas |
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| CN106823666A true CN106823666A (en) | 2017-06-13 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103349881A (en) * | 2013-08-08 | 2013-10-16 | 上海台安工程实业有限公司 | Multifunctional environment-friendly asphalt flue gas purification system |
| CN204073809U (en) * | 2014-09-28 | 2015-01-07 | 福州闽创环保科技有限公司 | Low-temperature plasma industrial |
| CN104353335A (en) * | 2014-11-26 | 2015-02-18 | 广西南宁华国环境科技有限公司 | Plasma desulfurization, denitration and dust removing device |
| CN104906818A (en) * | 2015-06-08 | 2015-09-16 | 山东大学 | Slurry vacuum distillation system and process based on wet flue gas desulfurization |
-
2016
- 2016-12-29 CN CN201611244344.2A patent/CN106823666A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103349881A (en) * | 2013-08-08 | 2013-10-16 | 上海台安工程实业有限公司 | Multifunctional environment-friendly asphalt flue gas purification system |
| CN204073809U (en) * | 2014-09-28 | 2015-01-07 | 福州闽创环保科技有限公司 | Low-temperature plasma industrial |
| CN104353335A (en) * | 2014-11-26 | 2015-02-18 | 广西南宁华国环境科技有限公司 | Plasma desulfurization, denitration and dust removing device |
| CN104906818A (en) * | 2015-06-08 | 2015-09-16 | 山东大学 | Slurry vacuum distillation system and process based on wet flue gas desulfurization |
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Application publication date: 20170613 |