CN106731543A - A kind of application oxygen plasma processes the device of flue gas - Google Patents
A kind of application oxygen plasma processes the device of flue gas Download PDFInfo
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- CN106731543A CN106731543A CN201611244376.2A CN201611244376A CN106731543A CN 106731543 A CN106731543 A CN 106731543A CN 201611244376 A CN201611244376 A CN 201611244376A CN 106731543 A CN106731543 A CN 106731543A
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- spray column
- oxygen
- flue gas
- 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
- 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
- B01D53/14—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
- B01D53/1406—Multiple stage absorption
-
- 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
- B01D53/1456—Removing acid components
- B01D53/1468—Removing 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
- B01D53/14—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
- B01D53/1456—Removing acid components
- B01D53/1481—Removing sulfur dioxide or sulfur trioxide
-
- 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
- B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
- B01D2252/10—Inorganic absorbents
- B01D2252/103—Water
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
-
- 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
-
- 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 oxygen plasma processes flue gas, at least include the first spray column, the second spray column, plasma generator and flash tank, input oxygen 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 oxygen 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 oxygen 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 oxygen 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 oxygen plasma of low cost processes the device of flue gas.
Realize that technical scheme is as follows：
A kind of application oxygen plasma processes the device of flue gas, at least including the first spray column, the second spray column, plasma
, input oxygen and be ionized into for oxygen defeated after oxygen plasma in the plasma generator by body generator and flash tank
Go out, the first gas explosion device that oriented bottom of towe sprays water and steam is set in the first spray column, be provided with the second spray column
Second gas explosion device, the plasma generator output end is formed with the second gas explosion device and connected with to defeated in the second gas explosion device
Enter oxygen plasma；
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 oxygen plasma that the mixed liquor in the second spray column and the second gas explosion device are sprayed；Second spray
Drench the mixed liquor formed after reaction in tower to enter in flash tank by the second conveyance conduit, by entering first after flash tank flash distillation
Water and steam is formed in gas explosion device to spray in flue gas in the first spray column；
The medium input of the plasma generator is communicated with oxygen offer device.
Further, the oxygen offer device includes oxygen cylinder, connection oxygen cylinder output end and plasma generator
The oxygen channel of medium input, be equiped with oxygen channel control oxygen cylinder in oxygen flow into plasma generator in
Control valve.
Further, the first gas explosion device is in the top in the first spray column and the liquid in the first spray column
Ullage.
Further, the second gas explosion device is in the bottom in the second spray column and the liquid in the second spray column
Liquid level lower section.
Further, SO is contained in the flue gas2When, reaction generation sulfuric acid；Chemical formula in course of reaction is：SO2+O3+
H2O=H2SO4+O2。
Further, when containing NxO in the flue gas, reaction generation nitric acid；Chemical formula in course of reaction is：NO+O3
=NO2+O2,3NO2+H2O=2HNO3+NO。
Further, H is contained in the flue gas2During S, reaction generation sulfuric acid；Chemical formula in course of reaction is：2H2S+
3O2=2H2O+2SO2, SO2+O3+H2O=H2SO4+O2。
Above-mentioned technical proposal is employed, oxygen enters plasma generator by the input of plasma generator
In, oxygen is ionized into by oxygen plasma by plasma generator, then from the medium outlet side of plasma generator
It is distributed in the liquid in the second spray column into the second gas explosion device；And dust removing is pre- to be located to need flue gas to be processed first to carry out
Reason, the flue gas after removing dust is entered in the first spray column by flue, the gas lower with the sprinkling of the first gas explosion device and
Water vapour is mixed, and pre-reaction treatment is carried out with to the pollutant in flue gas, and the pollutant in flue gas steams with the water under spray
Vapour is merged and is formed liquid deposition in the bottom of the first spray column, and then the liquid solution of the first spray tower bottom is by the
One conveyance conduit enters in the second spray column, the oxygen plasma for is distributed with the first gas explosion device and is merged, reacted, will
The flue gas pollutant incorporated in liquid is processed, and in the second spray column reacted liquid by after the flash distillation of flash tank again
The first gas explosion device being recycled in the first spray column sprays out gas-liquid mixed gas, enters in the first spray column with to follow-up
Flue gas carries out fusion treatment, by continuous circular treatment, can thoroughly process the pollutant in flue gas.The present invention is in
If two spray columns of gas explosion device, a plasma generator, a flash tank and corresponding pipeline constitute circulating
The device processed flue gas, equipment relatively easy in structure, input is few, low cost of manufacture, and in fume treatment process
In, constantly to carry out thorough purified treatment to flue gas, the purification efficiency and effect of flue gas can be lifted by circular response；In addition,
Be the oxygen that is passed through to the inorganic agent that pollutant in flue gas is processed by plasma generator carry out it is plasmarized after
Oxygen plasma, because oxygen 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, 11 is oxygen cylinder, and 12 is oxygen channel, and 13 is control valve.
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 oxygen plasma processes the device of flue gas, including the first spray column 1, the second spray column
2nd, oxygen is input into plasma generator 3 and flash tank 4, plasma generator and oxygen is ionized into oxygen plasma
After export, the first gas explosion device 5 that oriented bottom of towe sprays water and steam is set in the first spray column, set in the second spray column
The second gas explosion device 6 is equipped with, plasma generator output end is formed with the second gas explosion device and connected with the second gas explosion device
Input oxygen plasma；Gas explosion device in order to by medium therein formed it is vaporific send forth, to increase the lower medium of sprinkling
Swept area；Flue gas is into having a process for rising in the first spray column, it is thus possible under the first gas explosion device spray
Medium produces the fusion that crosses, and the gas explosion device in the first spray column is in the top in spray column, so as to Jie that will be sprayed
Matter sufficiently can carry out mixing increase contact area with the flue gas entered in the first spray column, lift the efficiency and effect of mixing
Really；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., and the
One gas explosion device is 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.
The medium input of plasma generator is communicated with oxygen offer device, oxygen offer device include oxygen cylinder 11,
Connection oxygen cylinder output end and the oxygen channel 12 of plasma generator medium input, are equiped with control on oxygen channel
In oxygen cylinder oxygen flows into the control valve 13 in plasma generator, and reaction requirement amount according to oxygen adjusts control valve
Working condition, with to being input into appropriate oxygen in plasma generator.
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 the oxygen plasma of plasma generator discharge
Into in the mixed liquor of the second spray tower bottom, rolling can be produced to stir, to increase between oxygen plasma and mixed liquor
Contact surface, the reaction efficiency of polluter in lifting oxygen plasma and mixed liquor, i.e., whole oxidation reaction is carried out in a liquid,
Problem not high to the difficult and treatment effeciency of fume treatment in atmosphere in the prior art can be overcome, the present apparatus is enclosed
The circulatory system, can be to the polluter (SO that contains in flue gas2、NxO、H2S) thoroughly processed.Furthermore it is possible in spray
The detector containing sulfuric acid concentration and concentration of nitric acid in detection liquid is set up in tower, when detecting concentration and reaching setting value, can
By by the electronic valve on the discharging tube for opening connection spray column, the liquid in spray column to be discharged, to realize automation row
The energy supply of liquid.
Wherein, SO is contained in flue gas2When, reaction generation sulfuric acid；Chemical formula in course of reaction is：SO2+O3+H2O=
H2SO4+O2.When containing nitrogen oxides in flue gas, reaction generates nitric acid, and chemical formula is：NO+O3=NO2+O2,3NO2+H2O=
2HNO3+NO.When containing hydrogen sulfide in flue gas, reaction generation sulfuric acid；Chemical formula in course of reaction is：2H2S+3O2=2H2O+
2SO2, SO2+O3+H2O=H2SO4+O2。
Claims (7)
1. a kind of application oxygen plasma processes the device of flue gas, it is characterised in that at least including the first spray column, the second spray
Tower, plasma generator and flash tank, in the plasma generator input oxygen and by oxygen be ionized into oxygen etc. from
Exported after daughter, the first gas explosion device that oriented bottom of towe sprays water and steam, the second spray column are set in the first spray column
The second gas explosion device is inside provided with, the plasma generator output end is formed with the second gas explosion device and connected with to the second gas explosion
Oxygen plasma is input into 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 oxygen plasma formation reaction that the mixed liquor in the second spray column and the second gas explosion device are sprayed；In second spray column
The mixed liquor formed after reaction is entered in flash tank by the second conveyance conduit, is filled into the first gas explosion by after flash tank flash distillation
Formation water and steam is put to spray in flue gas in the first spray column；
The medium input of the plasma generator is communicated with oxygen offer device.
2. a kind of application oxygen plasma according to claim 1 processes the device of flue gas, it is characterised in that the oxygen
Offer device includes the oxygen channel of oxygen cylinder, connection oxygen cylinder output end and plasma generator medium input, in oxygen
Be equiped with feed channel control oxygen cylinder in oxygen flow into plasma generator in control valve.
3. a kind of application oxygen plasma according to claim 1 processes the device of flue gas, it is characterised in that described first
Gas explosion device be in the first spray column in top and in the first spray column liquid ullage.
4. a kind of application oxygen plasma according to claim 1 or 2 or 3 processes the device of flue gas, it is characterised in that institute
State the second gas explosion device be in the second spray column in bottom and in the second spray column liquid liquid level lower section.
5. a kind of application oxygen plasma according to claim 1 processes the device of flue gas, it is characterised in that the flue gas
In contain SO2When, reaction generation sulfuric acid；Chemical formula in course of reaction is：SO2+O3+H2O=H2SO4+O2。
6. a kind of application oxygen plasma according to claim 1 processes the device of flue gas, it is characterised in that the flue gas
In containing NxO when, reaction generation nitric acid；
Chemical formula in course of reaction is：NO+O3=NO2+O2,3NO2+H2O=2HNO3+NO。
7. a kind of application oxygen plasma according to claim 1 processes the device of flue gas, it is characterised in that the flue gas
In contain H2During S, reaction generation sulfuric acid；Chemical formula in course of reaction is：2H2S+3O2=2H2O+2SO2, SO2+O3+H2O=
H2SO4+O2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611244376.2A CN106731543A (en) | 2016-12-29 | 2016-12-29 | A kind of application oxygen plasma processes the device of flue gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611244376.2A CN106731543A (en) | 2016-12-29 | 2016-12-29 | A kind of application oxygen plasma processes the device of flue gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106731543A true CN106731543A (en) | 2017-05-31 |
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ID=58927597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611244376.2A Pending CN106731543A (en) | 2016-12-29 | 2016-12-29 | A kind of application oxygen plasma processes the device of flue gas |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103721538A (en) * | 2013-12-30 | 2014-04-16 | 清华大学 | Integrated treatment and utilizing device for recovering and denitrating smoke waste heat and condensate water of natural gas |
| CN204073809U (en) * | 2014-09-28 | 2015-01-07 | 福州闽创环保科技有限公司 | Low-temperature plasma industrial |
| CN104906818A (en) * | 2015-06-08 | 2015-09-16 | 山东大学 | Slurry vacuum distillation system and process based on wet flue gas desulfurization |
| CN204684935U (en) * | 2015-06-02 | 2015-10-07 | 武汉凯比思电力设备有限公司 | For the smoke eliminator of alkali recovery furnace |
| CN205379793U (en) * | 2016-03-07 | 2016-07-13 | 李爱云 | Smoke desulfurizing dust collector |
-
2016
- 2016-12-29 CN CN201611244376.2A patent/CN106731543A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103721538A (en) * | 2013-12-30 | 2014-04-16 | 清华大学 | Integrated treatment and utilizing device for recovering and denitrating smoke waste heat and condensate water of natural gas |
| CN204073809U (en) * | 2014-09-28 | 2015-01-07 | 福州闽创环保科技有限公司 | Low-temperature plasma industrial |
| CN204684935U (en) * | 2015-06-02 | 2015-10-07 | 武汉凯比思电力设备有限公司 | For the smoke eliminator of alkali recovery furnace |
| CN104906818A (en) * | 2015-06-08 | 2015-09-16 | 山东大学 | Slurry vacuum distillation system and process based on wet flue gas desulfurization |
| CN205379793U (en) * | 2016-03-07 | 2016-07-13 | 李爱云 | Smoke desulfurizing dust collector |
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Application publication date: 20170531 |
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