CN108211686A - A kind of tail gas photooxidation cracking purification method - Google Patents
A kind of tail gas photooxidation cracking purification method Download PDFInfo
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- CN108211686A CN108211686A CN201711266598.9A CN201711266598A CN108211686A CN 108211686 A CN108211686 A CN 108211686A CN 201711266598 A CN201711266598 A CN 201711266598A CN 108211686 A CN108211686 A CN 108211686A
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- 238000000034 method Methods 0.000 title claims abstract description 42
- 238000007539 photo-oxidation reaction Methods 0.000 title claims abstract description 42
- 238000005336 cracking Methods 0.000 title claims abstract description 37
- 238000000746 purification Methods 0.000 title claims abstract description 16
- 239000007789 gas Substances 0.000 claims abstract description 142
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000007921 spray Substances 0.000 claims abstract description 29
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000001514 detection method Methods 0.000 claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 9
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000003546 flue gas Substances 0.000 claims abstract description 8
- 239000012855 volatile organic compound Substances 0.000 claims abstract description 7
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000005864 Sulphur Substances 0.000 claims abstract description 5
- 239000000428 dust Substances 0.000 claims abstract description 5
- 238000010410 dusting Methods 0.000 claims abstract description 5
- 239000002245 particle Substances 0.000 claims abstract description 4
- 238000006555 catalytic reaction Methods 0.000 claims description 15
- 230000003647 oxidation Effects 0.000 claims description 11
- 238000007254 oxidation reaction Methods 0.000 claims description 11
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 9
- 238000005457 optimization Methods 0.000 claims description 4
- 150000003384 small molecules Chemical class 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 3
- DOTMOQHOJINYBL-UHFFFAOYSA-N molecular nitrogen;molecular oxygen Chemical compound N#N.O=O DOTMOQHOJINYBL-UHFFFAOYSA-N 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 230000001590 oxidative effect Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 229910001868 water Inorganic materials 0.000 description 9
- 230000004992 fission Effects 0.000 description 8
- 239000002912 waste gas Substances 0.000 description 8
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 238000006303 photolysis reaction Methods 0.000 description 6
- TXKMVPPZCYKFAC-UHFFFAOYSA-N disulfur monoxide Inorganic materials O=S=S TXKMVPPZCYKFAC-UHFFFAOYSA-N 0.000 description 5
- 230000001699 photocatalysis Effects 0.000 description 5
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 5
- 239000003344 environmental pollutant Substances 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 230000003197 catalytic effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000002440 industrial waste Substances 0.000 description 3
- 239000003595 mist Substances 0.000 description 3
- 238000007146 photocatalysis Methods 0.000 description 3
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 239000010815 organic waste Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 230000001877 deodorizing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006557 surface reaction Methods 0.000 description 1
- 230000010148 water-pollination Effects 0.000 description 1
Classifications
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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
- B01D53/007—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
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
-
- 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
- B01D53/26—Drying gases or vapours
- B01D53/266—Drying gases or vapours by filtration
-
- 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
- B01D53/30—Controlling by gas-analysis apparatus
-
- 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
- B01D53/86—Catalytic processes
- B01D53/8678—Removing components of undefined structure
- B01D53/8687—Organic 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
- B01D53/86—Catalytic processes
- B01D53/8696—Controlling the catalytic process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
- B01D2251/104—Ozone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/207—Transition metals
- B01D2255/20707—Titanium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/80—Type of catalytic reaction
- B01D2255/802—Photocatalytic
-
- 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
- B01D2259/804—UV light
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Toxicology (AREA)
- Dispersion Chemistry (AREA)
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Abstract
The invention discloses a kind of tail gas photooxidation cracking purification method, 1) factory's organic exhaust gas enters front end spray column, and the dust particle in organic exhaust gas is fixed in spray liquid；2) organic exhaust gas after rough dusting enters photooxidation cracking cabinet progress off-gas oxidizing processing by air hose；3) the 2) in step processing procedure, and signal detection exhaust gas concentration and will be fed back to the regular combination open and close of fluorescent tube in single-chip computer control system, control high energy ultraviolet lamp group module, ozone supply module by the exhaust gas concentration detection sensor mounted on photooxidation cracking cabinet inlet in real time；4) gas after processing enters the fixation that dry method flue gas integrated treatment tank realizes sulphur, nitrogen oxides under the action of air-introduced machine, and the gas that system discharge standard is not achieved enters front end cycle.The service life that can be realized the energy-efficient operation of whole system, extend lamp group module of the present invention, improves VOCs treatment effect, and secondary pollution problem caused by avoiding conventional wet technique realizes ultra-clean discharge.
Description
Technical field
The present invention relates to technical field of waste gas treatment, specifically a kind of tail gas photooxidation cracking purification method.
Background technology
Atmosphere pollution is one of China's environmental problem most prominent at present.Wherein industrial waste gas is the important of atmosphere pollution
Source.Most intractable in industrial waste gas is exactly organic exhaust gas, is mainly derived from petrochemical industry rubber industry production process and arranges
The exhaust gas put, organic exhaust gas are not only caused outside direct atmosphere pollution, and it is secondary also to participate in complicated reaction generation in an atmosphere
Pollutant becomes one of main source of PM2.5.Therefore, the processing of organic exhaust gas and purifying problem are urgently to be resolved hurrily.
Traditional organic waste-gas purification processing means mainly include：Direct high-temperature combustion method, catalytic oxidation, ozone deodorizing
Method, active carbon adsorption, soda acid liquid spray process, biological odor removal method etc..There are equipment investments to varying degrees for these methods
High, operating cost height, processing is narrow-minded, job insecurity, occupied space is big, deodorization purification efficiency is not high, there are secondary pollutions
The problems such as.At present, novel ultraviolet light exhaust treatment system has obtained more and more applications, by big after UV treatment
The strand of molecule organic exhaust gas, which is interrupted, becomes small molecule contaminants, can be by the row of exhaust gas using the processing of follow-up equipment
It puts and is reduced to a very low level.
In Chinese patent literature, CN103505990A is related to a kind of UV-VOC emission-control equipments, including babinet, described
Photodissociation is equipped in babinet and aoxidizes fission chamber, the photodissociation oxidation fission chamber is connected by pipeline with waste gas inlet；Described
Excitation high-pressure installation is equipped in photodissociation oxidation fission chamber, organic exhaust gas is decomposed to fission；Control is additionally provided on the babinet
System, the control system include master controller, B/P EGR Back Pressure Transducer EGR, photoelectric sensor, realize the overall operation to the equipment
And security control.The present invention aoxidizes fission chamber by photodissociation effectively realizes the purified treatment of exhaust gas, and organic exhaust gas is abundant
Oxidation fission discharge, it is pollution-free；The filtering and separation of exhaust gas are realized by pretreatment section, for follow-up photodissociation oxidation fission processing system
System creates conditions to the processing of exhaust gas；The application of water circulation system doubles to extend the use of photodissociation oxidation fission device handling system
Service life.CN104667674B is related to technical field of air purification processing, more particularly, to coating waste gas treatment process and its device,
Including paint mist treatment, the dust particles in exhaust gas are handled by water spray；Photocatalysis treatment makes organic or inorganic high score in exhaust gas
Sub- malodorous compound molecular chain degradation is transformed into low molecular compound, is thus modified as hydrophily gas；And at gas-liquid mixed
Reason, removes the peculiar smell in removing exhaust gas, exhaust-gas treatment is more thorough.Its device has a paint mist treatment tower, a photocatalysis treatment device and one
Gas-liquid mixed processor, the coaxial word of three are connected successively, form sealing channel, according to above-mentioned process coating waste gas, knot
Structure is simple, easily makes, and clean-up effect is good, is applicable in industrial waste gas processing.CN105964120A discloses a kind of exhaust-gas treatment system
System, including alkali spray column, plant liquid spraying tower, photocatalytic oxidation device, wind turbine and chimney, the alkali spray column, vegetation water spray
Leaching tower, photocatalytic oxidation device, wind turbine and chimney are sequentially connected.The present invention is compared with traditional technology, design science, handles exhaust gas
Effect is apparent, soda acid is handled, biochemical treatment and Treatment by Photocatalysis Oxidation combine in a system, can fully handle mixed
Mould assembly exhaust gas discharges after being allowed to up to standard.Entitled " combined plastic granulation waste gas cleaning system ", publication number
The utility model patent of CN205550040U discloses a kind of technical solution, including spray scrubber and whirlwind aqueous vapor separation dress
It puts, waste gas treatment equipment, waste gas treatment equipment includes activated carbon adsorption storehouse, UV photooxidations catalysis storehouse and low-temperature plasma equipment.On
The technology of stating can effectively remove smog and debirs in exhaust gas.But above-mentioned technical proposal intelligentized control method level is very low, no
The processing power of ultraviolet equipment can be controlled in real time according to pollutant concentration, the waste or pollutant process for causing the energy do not reach
Target problem.In addition by ultraviolet equipment treated exhaust gas in discharge because conventional wet equipment for after-treatment (is generally adopted
With scrubbing tower) limitation can also pollute object with water mist of gas flowing discharge caused by secondary pollution problem.
Invention content
In order to solve the above technical problem, the present invention provides a kind of tail gas photooxidation cracking purification methods, it is therefore an objective to realize tail
Gas detection, the intelligentized control method of tail gas photooxidation cracking, available for the cracking such as waste rubber and waste plastic in chemical plant exhaust gas, rubber
The vent gas treatment of tail gas and catering trade in processing and reclaimed rubber process；It effectively saves the energy, improve working efficiency,
Realize the ultra-clean discharge of exhaust gas.
In order to achieve the above objectives, technical scheme is as follows：
A kind of tail gas photooxidation cracking purification method, including：
1) factory's organic exhaust gas enters the front end spray column, and front end spray column is by spraying the dust in organic exhaust gas
Particulate matter is fixed in spray liquid；
2) organic exhaust gas after rough dusting enters photooxidation cracking cabinet by air hose, and organic exhaust gas is cracked by photooxidation
The further dedusting filter of the dust-proof filter wet web of cabinet entrance is wet, and high energy ultraviolet lamp group module is by organic exhaust gas macromolecular chain rupture, ozone
Supplying module further aoxidizes the small molecule exhaust gas after chain rupture, TiO2Catalysis net participates in catalysis, and organic exhaust gas is broken down into CO2、
H2O, sulfur oxide, nitrogen oxide；
3) in the 2) step processing procedure, the exhaust gas concentration detection sensor mounted on photooxidation cracking cabinet inlet will be real-time
Signal is simultaneously fed back to single-chip computer control system by detection exhaust gas concentration, and single-chip computer control system is accordingly dense according to input-signal judging
Degree range simultaneously enables the control program of autonomous optimization design to control high energy ultraviolet lamp group module, ozone supply module regular
Combination open and close, realize the energy-efficient processing to organic exhaust gas；
4) gas after processing enters the dry method flue gas integrated treatment tank under the action of the suction type air-introduced machine
Realize the fixation of sulphur, nitrogen oxides.
5) such as treated, and the minimum exhaust gas concentration discharge standard of default, Intelligent control cabinet control is not achieved in gas concentration
The pipe switch that gas is discharged into air side by three-way electromagnetic switch valve processed is closed, the air inlet duct side with front end spray column
The tracheae of connected three-way electromagnetic switch valve connection is open-minded, is given to so as to which untreated gas up to standard be made to pass through pipeline and convey again
Leading portion processing equipment is handled again, until the detection numerical value of postposition exhaust gas concentration detection sensor meets the concentration mark of default
Quasi- value, the final ultra-clean discharge realized after VOCs treatment.
Compared to the prior art, design of this programme based on intelligent control, single-chip computer control system crack cabinet by photooxidation
The feedback signal of the sensor of inlet detection pollutant concentration, controls the regular combination open and close of lamp group module, realization pair
The energy-efficient processing of organic exhaust gas.In addition, gas after processing enters dry method flue gas General Office under the action of air-introduced machine
It manages in tank, sulfur oxide is fixed up, leaking for sulfur oxide caused by avoiding traditional spray process will handle clean gas
Body is discharged into air.Dust particle in factory's organic exhaust gas is fixed on by spray liquid by spray using front end spray column
In, carry out rough dusting.This programme is conducive to extend the service life of lamp group module, improves VOCs treatment effect.Pass through
Experimental studies have found that the service life of lamp group module can be extended 30%, VOCs treatment effect promoting 23%.
Based on said program, the present invention is also made that following improvement：
It is equal that the fluorescent tube layout that the high energy ultraviolet lamp group module and ozone supply module fluorescent tube are opened follows spatial distribution
Even property principle.The feedback signal for detecting the sensor of exhaust gas concentration in cabinet inlet, photooxidation are cracked by photooxidation in this improvement project
The Intelligent control cabinet for installing single-chip computer control system is additionally provided in cracking cabinet, utilizes the control of the autonomous optimization design of microcontroller
Program controls the regular combination open and close of quartz burner, energetic ion pipe.The unlatching of fluorescent tube follows uniform spatial distribution
Principle be in order to ensure reaction uniformity.
The high energy ultraviolet lamp group module includes 3 groups including 4 groups, ozone supply module, and every group of lamp group includes 4 lamps
Pipe, control fluorescent tube open method are：
When exhaust gas concentration is 0-150mg/m3；In high energy ultraviolet lamp group module, every group is only opened 1 fluorescent tube, and all
The lamp strip position that the fluorescent tube that group is opened is opened differs, and arranges integral into " W " or " M " type；In ozone supply module, only open
1 fluorescent tube among first group and third group, the lamp strip position of unlatching are staggered；
When exhaust gas concentration is 150-200mg/m3, in high energy ultraviolet lamp group module, 2 fluorescent tubes of every group of unlatching, integral into
“>" and "<" staggered；In ozone supply module, 2 fluorescent tubes in first group and second group, the lamp strip position of unlatching are opened
“>" or "<" type；
When exhaust gas concentration is 200-250mg/m3, in high energy ultraviolet lamp group module, first group and third group fluorescent tube it is whole
It opens, second group and the 4th group is opened 2 fluorescent tubes and fluorescent tube is staggered；In ozone supply module, every group is opened 2 lamps
Pipe, integral into ">" and "<" staggered；
When exhaust gas concentration is 250mg/m3More than, all fluorescent tubes of high energy ultraviolet lamp group module are opened；Ozone supply mould
In block, first group of fluorescent tube is all turned on, and second group and third group fluorescent tube open 2 fluorescent tubes, second and third group of fluorescent tube arrangement is in
“>" or "<" type.
The photooxidation cracking cabinet inlet is equipped with the dust-proof filter wet web of changeable type.Prevented in this improvement project using changeable type
Dirt filters wet web, and to exhaust gas, further dedusting filter is wet, and protection photooxidation cracking cabinet avoids excessive moisture from causing the accident of lamp group module
Electric discharge ensures the suitable working environment of photooxidation cracking cabinet.
TiO is evenly distributed between the lamp group module2Catalysis net, TiO2Catalysis net participates in catalysis, and organic exhaust gas is divided
It solves as CO2、H2O, sulfur oxide, nitrogen oxide.In TiO in this improvement project2To organic waste under the catalytic action of catalysis net
The macromolecular of gas carries out highly efficient destruction and oxidation, improves efficiency.
The air-introduced machine is suction type air-introduced machine.The gas mobilization dynamic of package unit is drawn by suction type in this improvement project
Wind turbine provides, and due to the presence of negative pressure, ensures that untreated organic exhaust gas will not be outer in photooxidation cracking cabinet or even package unit
It lets out, causes the pollution of environment.
Single-chip computer control system in the Intelligent control cabinet is able to record exhaust gas still not up to standard after tail gas clean-up
The function of component, when carrying out the vent gas treatment of same sample ingredient next time, single-chip computer control system control high energy ultraviolet lamp group mould
Block and ozone supply module are handled according to higher than rank unlatching fluorescent tube where this exhaust gas concentration.
Description of the drawings
Equipment three-dimensional structure diagram included in Fig. 1 present invention
Fig. 2 photooxidation cracking cabinet box house three-dimensional structure diagrams of the present invention
Fig. 3 high energy ultraviolet lamp group module three-dimensional structure diagrams of the present invention
The high energy ultraviolet lamp group module of Fig. 4 present invention and ozone supply module lamp group structure chart
In figure, 1, front end spray column, 2, exhaust gas concentration detection sensor, 3, photooxidation cracking cabinet, 4, dust-proof filter wet web, 5, high
Can ultraviolet lamp group module, 6, ozone supply module, 7, TiO2Catalysis net, 8, Intelligent control cabinet, 9, suction type air-introduced machine, 10,
Dry method flue gas integrated treatment tank, 11, postposition exhaust gas concentration detection sensor, 12, three-way electromagnetic switch valve.
Specific embodiment
The specific implementation of the present invention is further described below in conjunction with the accompanying drawings.
A kind of tail gas photooxidation cracking purification method, including,
1) factory's organic exhaust gas enters the front end spray column 1, and front end spray column 1 is by spraying the powder in organic exhaust gas
Dirt particulate matter is fixed in spray liquid；
2) organic exhaust gas after rough dusting enters photooxidation cracking cabinet 3 by air hose, and organic exhaust gas is split by photooxidation
4 further dedusting of the dust-proof filter wet web filter for solving 3 entrance of cabinet is wet, high energy ultraviolet lamp group module 5 by organic exhaust gas macromolecular chain rupture,
Ozone supply module 6 further aoxidizes the small molecule exhaust gas after chain rupture；
3) in the 2) step processing procedure, the exhaust gas concentration detection sensor 2 mounted on photooxidation cracking cabinet inlet will be real
When detection exhaust gas concentration and signal is fed back into single-chip computer control system, single-chip computer control system is corresponding according to input-signal judging
Concentration range simultaneously enables the control program of autonomous optimization design high energy ultraviolet lamp group module 5, ozone supply module 6 to be controlled to have
The energy-efficient processing to organic exhaust gas is realized in the combination open and close of rule；
4) gas after processing is realized under the action of the air-introduced machine 9 into the dry method flue gas integrated treatment tank 10
The fixation of sulphur, nitrogen oxides；
5) such as treated, and the minimum exhaust gas concentration discharge standard of default, Intelligent control cabinet control is not achieved in gas concentration
The pipe switch that gas is discharged into air side by three-way electromagnetic switch valve processed is closed, the air inlet duct side with front end spray column
The tracheae of connected three-way electromagnetic switch valve connection is open-minded, is given to so as to which untreated gas up to standard be made to pass through pipeline and convey again
Leading portion processing equipment is handled again, until the detection numerical value of postposition exhaust gas concentration detection sensor meets the concentration mark of default
Quasi- value, the final ultra-clean discharge realized after VOCs treatment.
As shown in Figure 2,3, wherein, described the 3) high energy ultraviolet lamp group module includes 4 groups, ozone supply module packet in step
3 groups are included, every group of lamp group includes 4 fluorescent tubes, and control fluorescent tube open method is：
When exhaust gas concentration is 0-150mg/m3；In high energy ultraviolet lamp group module, every group is only opened 1 fluorescent tube, and all
The lamp strip position that the fluorescent tube that group is opened is opened differs, and arranges integral into " W " or " M " type；In ozone supply module, only open
1 fluorescent tube among first group and third group, the lamp strip position of unlatching are staggered；
When exhaust gas concentration is 150-200mg/m3, in high energy ultraviolet lamp group module, 2 fluorescent tubes of every group of unlatching, integral into
“>" and "<" staggered；In ozone supply module, 2 fluorescent tubes in first group and second group, the lamp strip position of unlatching are opened
“>" or "<" type；
When exhaust gas concentration is 200-250mg/m3, in high energy ultraviolet lamp group module, first group and third group fluorescent tube it is whole
It opens, second group and the 4th group is opened 2 fluorescent tubes and fluorescent tube is staggered；In ozone supply module, every group is opened 2 lamps
Pipe, integral into ">" and "<" staggered；
When exhaust gas concentration is 250mg/m3More than, all fluorescent tubes of high energy ultraviolet lamp group module are opened；Ozone supply mould
In block, first group of fluorescent tube is all turned on, and second group and third group fluorescent tube open 2 fluorescent tubes, second and third group of fluorescent tube arrangement is in
“>" or "<" type.As shown in Figure 1, TiO is equipped between high energy ultraviolet lamp group module 5, the lamp group module of ozone supply module 62
Catalysis net, TiO2Catalysis net 7 participates in catalysis, and organic exhaust gas is broken down into CO2、H2O, sulfur oxide, nitrogen oxide.Humidity
Influence TiO2The catalytic efficiency of catalysis net, TiO2Surface hydrophilic, to water strong adsorption, when water content increases, hydrone and toluene
Molecule is in TiO2Adsorption competes, and hinders absorption of the toluene molecule in catalyst surface active position so that surface reaction rate
Decline, therefore, by the setting for the filter screen that dehumidifies in the present embodiment, filter wet process is carried out to exhaust gas.The photooxidation cracking cabinet enters
The dust-proof filter wet web of changeable type is equipped at mouthful.The air-introduced machine is suction type air-introduced machine.
As shown in Figure 1, the present invention relates to a kind of intelligent tail gas photooxidation cracking purifier, including with factory's organic waste tracheae
Front end spray column 1 that road is connected, cracked by the photooxidation for being internally provided with lamp group module that air hose is connected with front end spray column 1 cabinet 3,
The negative pressure induced wind machine 9 for being installed on photooxidation cracking cabinet air outlet, the dry method flue gas integrated treatment being connected with 9 air outlet of negative pressure induced wind machine
Tank 10；The inlet of photooxidation cracking cabinet 3 is equipped with exhaust gas concentration detection sensor 2, is equipped in the slot of 3 inlet of photooxidation cracking cabinet
Changeable type is dust-proof to filter wet web 4, and the detection of postposition exhaust gas concentration is equipped on the exhaust pipe of the dry method flue gas integrated treatment tank and is passed
Sensor 11, the exhaust pipe are T-tube, and a branch is directly communicated with outside, the inlet tube of another branch and front end spray column 1
Road is connected；The three-way electromagnetic switch valve 12 controlled by single-chip computer control system is equipped at the exhaust pipe branch bifurcated mouth.Such as place
Gas concentration after reason is not achieved the minimum exhaust gas concentration discharge standard of default, the microcontroller in the Intelligent control cabinet 8
Control system records this gas component simultaneously, and Intelligent control cabinet 9 controls three-way electromagnetic switch valve 14 that gas is discharged into air one
The pipe switch closing of side, the tracheae that the three-way electromagnetic switch valve being connected with the air inlet duct side of front end spray column 1 is connect
It is open-minded, the single-chip computer control system control high energy ultraviolet during vent gas treatment of same sample ingredient in Intelligent control cabinet 8 is carried out next time
Line lamp group module and ozone supply module are handled according to higher than rank unlatching fluorescent tube where this exhaust gas concentration.
Claims (7)
1. a kind of tail gas photooxidation cracking purification method, it is characterised in that：Including,
1) factory's organic exhaust gas enters the front end spray column, and front end spray column is by spraying the dust particles in organic exhaust gas
Object is fixed in spray liquid；
2) organic exhaust gas after rough dusting enters photooxidation cracking cabinet by air hose, and organic exhaust gas enters by photooxidation cracking cabinet
Mouthful dust-proof filter wet web further dedusting filter it is wet, high energy ultraviolet lamp group module is by organic exhaust gas macromolecular chain rupture, ozone supply
Module further aoxidizes the small molecule exhaust gas after chain rupture；
3) in the 2) step processing procedure, the exhaust gas concentration detection sensor mounted on photooxidation cracking cabinet inlet will detect in real time
Signal is simultaneously fed back to single-chip computer control system by exhaust gas concentration, and single-chip computer control system is according to input-signal judging respective concentration model
It encloses and enables the control program of autonomous optimization design fluorescent tube in high energy ultraviolet lamp group module, ozone supply module to be controlled to have rule
The energy-efficient processing to organic exhaust gas is realized in the combination open and close of rule；
4) gas after processing enters dry method flue gas integrated treatment tank realization sulphur, nitrogen oxygen under the action of the air-introduced machine
The fixation of compound；
5) such as treated, and the minimum exhaust gas concentration discharge standard of default, Intelligent control cabinet control three is not achieved in gas concentration
The pipe switch that gas is discharged into air side by logical electromagnetic switch valve is closed, and is connected with the air inlet duct side of front end spray column
The connection of three-way electromagnetic switch valve tracheae it is open-minded, be given to leading portion so as to which untreated gas up to standard be made to pass through pipeline and convey again
Processing equipment is handled again, until the detection numerical value of postposition exhaust gas concentration detection sensor meets the concentration standard of default
Value, the final ultra-clean discharge realized after VOCs treatment.
2. a kind of tail gas photooxidation cracking purification method according to claim 1, it is characterised in that：Described 3) described in step
The fluorescent tube layout that high energy ultraviolet lamp group module and ozone supply module fluorescent tube are opened follows uniform spatial distribution principle.
3. a kind of tail gas photooxidation cracking purification method according to claim 2, it is characterised in that：The high energy ultraviolet lamp
Group module includes 3 groups including 4 groups, ozone supply module, and every group of lamp group includes 4 fluorescent tubes, and control fluorescent tube open method is：
When exhaust gas concentration is 0-150mg/m3；In high energy ultraviolet lamp group module, every group is only opened 1 fluorescent tube, and all groups of unlatchings
Fluorescent tube open lamp strip position differ, integral into " W " or " M " type arrange；In ozone supply module, first group is only opened
With 1 fluorescent tube among third group, the lamp strip position of unlatching is staggered；
When exhaust gas concentration is 150-200mg/m3, in high energy ultraviolet lamp group module, 2 fluorescent tubes of every group of unlatching, integral into ">" and
“<" staggered；In ozone supply module, open first group and second group in 2 fluorescent tubes, unlatching lamp strip position ">" or
“<" type；
When exhaust gas concentration is 200-250mg/m3, in high energy ultraviolet lamp group module, first group and third group fluorescent tube are all turned on,
Second group and the 4th group is opened 2 fluorescent tubes and fluorescent tube is staggered；In ozone supply module, every group is opened 2 fluorescent tubes, whole
Body into ">" and "<" staggered；
When exhaust gas concentration is 250mg/m3More than, all fluorescent tubes of high energy ultraviolet lamp group module are opened；In ozone supply module,
First group of fluorescent tube is all turned on, and second group and third group fluorescent tube open 2 fluorescent tubes, second and third group of fluorescent tube arrangement in ">" or
“<" type.
4. a kind of tail gas photooxidation cracking purification method according to claim 1 or 2, it is characterised in that：The photooxidation cracking
Cabinet inlet is equipped with the dust-proof filter wet web of changeable type.
5. a kind of tail gas photooxidation cracking purification method according to claim 1 or 2, it is characterised in that：The lamp group module
Between be evenly distributed with TiO2Catalysis net, TiO2Catalysis net participates in catalysis, and organic exhaust gas is broken down into CO2、H2O, the oxidation of sulphur
Object, nitrogen oxide.
6. a kind of tail gas photooxidation cracking purification method according to claim 1 or 2, it is characterised in that：The air-introduced machine is
Suction type air-introduced machine.
7. tail gas photodestruciton purification method according to claim 2, it is characterised in that：In the Intelligent control cabinet
Single-chip computer control system is able to record the function of exhaust gas component still not up to standard after tail gas clean-up, carry out next time equally into
During the vent gas treatment divided, single-chip computer control system control high energy ultraviolet lamp group module and ozone supply module are according to useless higher than this
Rank is opened fluorescent tube and is handled where gas concentration.
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