CN107930364A - A kind of cleaning system for microparticle and the mixture of volatile organic gases - Google Patents
A kind of cleaning system for microparticle and the mixture of volatile organic gases Download PDFInfo
- Publication number
- CN107930364A CN107930364A CN201711118601.2A CN201711118601A CN107930364A CN 107930364 A CN107930364 A CN 107930364A CN 201711118601 A CN201711118601 A CN 201711118601A CN 107930364 A CN107930364 A CN 107930364A
- Authority
- CN
- China
- Prior art keywords
- gas
- wet oxidation
- oxidation reaction
- reaction tower
- microparticle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
-
- 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
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/30—Particle separators, e.g. dust precipitators, using loose filtering material
-
- 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
-
- 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
- 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
- B01D53/86—Catalytic processes
- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
- B01D2251/106—Peroxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
- B01D2251/108—Halogens or halogen compounds
-
- 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
- B01D2255/20—Metals or compounds thereof
- B01D2255/209—Other metals
- B01D2255/2092—Aluminium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/50—Zeolites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/70—Non-metallic catalysts, additives or dopants
- B01D2255/702—Carbon
-
- 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
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/702—Hydrocarbons
- B01D2257/7027—Aromatic hydrocarbons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treating Waste Gases (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The invention belongs to waste gas purification technical field, more particularly to a kind of cleaning system for microparticle and the mixture of volatile organic gases, including particulate filter, wet oxidation reaction tower, light-catalyzed reaction module, wind turbine and the smoke discharging device of pipeline connection successively；Light-catalyzed reaction module is the single or multiple photo catalysis reactors being arranged in parallel；Photo catalysis reactor includes electrodeless ultraviolet lamp, quartz socket tube and outer barrel, and electrodeless ultraviolet lamp includes interior electrode, external electrode and variable high voltage supplies, and catalyst glass slide is uniformly fixed with each inner wall of outer barrel, uniformly catalyst is coated with catalyst glass slide.The beneficial effects of the invention are as follows：Using three kinds of processing mode synergistic purifications, thorough waste gas decomposition；Adjustable variable high voltage power supply, can also change low pressure mixed gas, so as to obtain the ultraviolet light of different wave length, degradable different exhaust gas, without the use of activated carbon adsorption, purification efficiency is high, and cost is low, using simple.
Description
Technical field
The invention belongs to waste gas purification technical field, and in particular to a kind of for the mixed of microparticle and volatile organic gases
The cleaning system of compound.
Background technology
Volatile organic compounds (VOCs) is one of main pollutant in atmosphere pollution, itself toxicity of many VOCs
By force, belong to odorant, serious harm is produced to health.VOCs materials can also be sent out with the NOx of automobile and plant emissions etc.
Third contact of a total solar or lunar eclipse chemical fumes forms ozone and formaldehyde etc., therefore VOCs is to form secondary organic aerosol particle and O3Important as precursors
The key that thing is the compound pollution of air and gray haze is formed.VOCs can also influence radiation balance of earth, reduce atmospheric visibility,
Seriously endanger health and ecological environment.
Some industries, such as petroleum industry, chemical industry, it can produce substantial amounts of exhaust gas in operation process, including micro-
Grain (atomizing particle) and volatile organic gases (VOCs).Particulate generally use dry method (filter silk floss, filter plate, the filter such as filter paper) and
WATER-WASHING METHOD, and VOCs exhaust gas is mainly using absorption process, plasma technique, absorption-burning Combined Treatment method etc..Publication No.
The utility model patent of 203842462U discloses " a kind of gas cleaning plant of coating material production ", mainly use " liquid absorption+
The method of filtering ", the technical solution of above-mentioned patent has particulate matter preferable removal effect, but VOCs is not imitated well
Fruit.
In addition, absorption process, which is widely used in, administers the organic exhaust gas such as petrochemical industry, since benzene homologues chemism is low in exhaust gas,
Generally use Physical Absorption method, the key and difficult point of technology are the selection of absorbent；Adsorption method for purifying VOCs generally uses are lived
Property charcoal be adsorbent, purification efficiency is high, but discarded adsorbent needs to regenerate or be used as danger wastes specially treated, brings
Extra processing cost；And the regeneration of adsorbent also cumbersome difficulty.Therefore, for the deficiency of above-mentioned single method,
Develop it is a kind of it is easy to operate, processing cost is low, the widely used mixture exhaust gas for microparticle and volatile organic gases
Processing tecchnics are highly desirable.
The content of the invention
The purpose of the present invention is overcome defect existing in the prior art, there is provided one kind is net using three kinds of processing mode collaborations
Change, thorough waste gas decomposition, purification efficiency is high, and adjustable variable high voltage power supply, can also change low pressure mixed gas, so as to obtain
The ultraviolet light of different wave length, degradable different exhaust gas, capacity usage ratio higher, exhaust-gas treatment effect it is good for microparticle and
The cleaning system of the mixture of volatile organic gases.
The technical solution adopted by the present invention to solve the technical problems is：One kind is directed to microparticle and volatile organic gases
Mixture cleaning system, it includes the particulate filter of the connection of pipeline successively, wet oxidation reaction tower, light-catalyzed reaction
Module, wind turbine and smoke discharging device；Light-catalyzed reaction module is urged for single photo catalysis reactor or multiple light being arranged in parallel
Change reactor；Photo catalysis reactor includes electrodeless ultraviolet lamp, quartz socket tube and outer barrel, and electrodeless ultraviolet lamp includes interior electrode, outer
Electrode and variable high voltage supplies, are equipped with gas-filled chamber between inner and outer electrodes, filled with inert gas in gas-filled chamber
With the mixed gas or inert gas of halogen gas and the mixed gas of mercuryvapour, inner and outer electrodes connect correspondingly
To the positive and negative anodes of variable high voltage supplies；Quartz socket tube and outer barrel are sheathed on electrodeless ultraviolet lamp successively from inside to outside, quartz sleeve
The both ends outer cover of pipe is equipped with tube sheet, and outer barrel is fixed on quartz socket tube by tube sheet, tube sheet be equipped with reaction gas into
Mouthful, the top gaseous phase outlet of reaction gas inlet pipeline connection wet oxidation reaction tower, the top gaseous phase of wet oxidation reaction tower goes out
Demister is equipped with mouthful, the gas phase import of wet oxidation reaction tower is located at bottom of towe；Another tube sheet is exported equipped with reaction gas, instead
Should gas outlet conduit connection fan inlet；Outer barrel, two composition catalytic reaction chambers between tube sheet and quartz socket tube；Quartz socket tube
Both ends inside be fixed with polytetrafluoroethylstephanoporate stephanoporate ring, the both ends of electrodeless ultraviolet lamp are arranged in two polytetrafluoroethyl-nes correspondingly
In alkene porous ring；Nitrogen chamber is formed between quartz socket tube, two polytetrafluoroethylstephanoporate stephanoporate rings and electrodeless ultraviolet lamp；Quartz socket tube
One end is nitrogen inlet, and the other end of quartz socket tube is nitrogen outlet, and nitrogen inlet and nitrogen outlet are respectively by respective poly-
Through hole connection nitrogen chamber in tetrafluoroethene porous ring；Outer barrel is rectangular cylinder, is uniformly fixed on each inner wall of outer barrel
There are multiple catalyst glass slides, uniformly catalyst is coated with catalyst glass slide.
During the cleaning system work of the present invention, wind turbine is opened, the exhaust gas containing particulate and volatile organic gases is by particle
Thing filter enters, and the gas feed of wet oxidation reaction tower is located at bottom of towe and is located at the lowermost.In the uphill process of gas
In, the aqueous oxidizing agent solution of gas and top spray carries out cross-flow reaction, oxidation reaction production innocuous substance, with caused useless
Water is stored into bottom of towe.The gas of major part VOCs is absorbed by after demister demisting by wet oxidation reaction tower, then by
Pipeline enters the further oxidation, purification that light-catalyzed reaction module carries out organic exhaust gas, and organic exhaust gas is produced in light-catalyzed reaction module
Under raw ultraviolet directly decompose or by catalyst surface living radical aoxidize, by the purified exhaust gas of three-level via
Wind turbine drives, and is discharged into smoke discharging device.Wherein, smoke discharging device is preferably chimney.
Present invention employs three kinds of filtering, the chemical absorbing oxidation of wet oxidation equipment and UV photocatalysis processing mode collaborations
Purification, can avoid single filtering from inhaling absorption method and the mixture of microparticle and VOCs is thoroughly purified, single chemical oxygen
Efficient absorption, purification of the single UV photocatalysis to high concentration volatile organic compounds can not be carried out to volatile organic compounds by changing
The defects such as effect is low, (or can be needed a variety of can not individually be handled using filtering, chemical absorbing oxidation or UV photocatalysis big
Energy consumption) exhaust gas thoroughly decompose, substantially reduce the input of equipment cost, and its purification efficiency is high, floor space is small, installation and
It is easy to operate, operating cost is low, and can be combined according to the fluctuation of exhaust gas flow and property 2 processing units therein (such as
Wet oxidation+photocatalysis or filtering+wet oxidation) use.
In addition, in light-catalyzed reaction mould photo catalysis reactor in the block, in the exhaust gas after wet oxidation from reaction gas
After import enters catalytic reaction chamber, variable high voltage supplies are powered, and are encouraged and shone using dielectric barrier discharge, and use discharge voltage
Low pressure mixed gas (rare gas-mercuryvapour between the adjustable variable high voltage supplies excitation two-layered medium of input power
Or rare gas-halogen) electric discharge produces Excimer UV radiation, low pressure mixed gas is excited the Excimer UV light of generation
The volatile organic waste gas in catalytic reaction chamber to outside quartz socket tube further thoroughly decomposes, the innocuous gas being decomposed to form
Export and discharge from reaction gas, and driven via wind turbine, discharged into smoke discharging device, thoroughly purified the organic gas of volatility
Body, reaches no pollution discharge.According to the ultraviolet corresponding to the main maximal ultraviolet absorption section for removing gaseous pollutant molecule
Wavelength, adjustable variable high voltage power supply of the present invention, can also change the low pressure mixed gas in gas-filled chamber, wavelength X is adjustable
Scope, so as to obtain the ultraviolet light (vacuum ultraviolet VUV and UV) of different wave length, can also change catalyst between 100~400nm
Species so that targetedly degrade different component, the exhaust gas of different content, capacity usage ratio higher, exhaust-gas treatment effect
It is good, pollutant is effectively purified, it is flexible and convenient to use.
Wherein, nitrogen chamber can constantly be passed in and out by nitrogen inlet and nitrogen outlet, can take away the surface of electrodeless ultraviolet lamp
Heat, while avoid O in air2Absorption to ultraviolet light, improves the utilization rate of light.
In addition, catalyst long-time service can produce failure, the present invention is used as the carrier of catalyst by catalyst glass slide,
It can regularly replace, it is easy to use.In addition, outer barrel is rectangular cylinder, catalyst glass slide is facilitated to fix, using more just
Profit.
Specifically, quartz socket tube outer surface is uniformly coated with catalyst, further increases catalytic effect.Urged in addition, working as
After agent failure, also erasable, and smear new catalyst again is easy to use.
Preferably, catalyst is pure TiO2, molecular sieve, activated alumina or or doping nonmetalloid TiO2；Further
Ground is preferred, and catalyst is the TiO of doped graphene2。
Specifically, air deflector is equipped with the exhaust gas inlet of particulate filter, air deflector has been arranged concentrically multiple retainer rings,
Multiple sector channels are separated into by multiple circumference uniform distributions and the wing plate radially arranged between two retainer rings of arbitrary neighborhood.
The structure is uniformly distributed easy to exhaust gas and water conservancy diversion enters in the filtration channel of particulate filter.
Further, on from the import of particulate filter toward export direction, in the filtration channel of particulate filter according to
Secondary to be provided with first order filtering material, second level filtering material and third level filtering material, first order filtering material is put down for polylith
The filter plate that row is set, is equipped with gap between two filter plates of arbitrary neighborhood, filter hole is evenly equipped with every piece of filter plate；From
Toward on export direction, the decreasing pore size of the filter hole of filter plate, the density of the filter hole of filter plate is passed for the import of grain thing filter
Increase；Second level filtering material is mineral wool, and third level filtering material is the filter paper that multiple are stacked.The three-stage filtration of the present invention
Material can be installed on detachability porous support on, filtrate fill when ensure gas by when resistance it is as low as possible；In addition,
The housing side of grain thing filter can set multiple mounting holes for being easily installed three-stage filtration material, use flange after installing again
Lid sealing；The pore size filter and filter gap width of the filtration of plural serial stage successively decrease step by step, realize the classification to exhaust gas
Filtration, purification, adds filter area, enhances filter effect, and then improves the removal rate of microparticle.
Further, the pH adjusting agent inlet pipeline of wet oxidation reaction tower is connected to pH adjusting agent storage tank, wet oxidation
The oxidant inlet pipeline of reaction tower is connected to oxidant storage tank, and wet oxidation reaction tower is communicated with running water inlet pipe；Wet method
Demister and multiple packing layers are installed successively from the bottom up in oxidation reaction tower, flusher is both provided with above each packing layer,
The import of each flusher is connected to circulating pump by pipeline, and the inlet pipeline of circulating pump is connected to wet oxidation reaction tower
Bottom of towe, the bottom of towe of wet oxidation reaction tower are communicated with wastewater outlet pipe, and the gas phase import of wet oxidation reaction tower is located at lower end
The lower section of packing layer；Oxidant in oxidant storage tank is the stronger NaClO of oxidisability.Wet oxidation reaction tower can be set at least
One group of flusher and demister, wet oxidation reaction tower is interior to set nozzle to be uniformly sprayed at oxidative absorption liquid on filler, gives up
When gas passes through filler, the contact area of increase exhaust gas and oxidative absorption liquid, increases absorption efficiency.The wet oxidation reaction of the present invention
Tower is heterogeneous reaction tower, and packing layer is installed by supporting items such as grids in tower, and the filler in packing layer is preferably bead.It is useless
When organic gas in gas passes through packed tower from the bottom up, contact with the oxidant cross-flow of top spray, carried out on filler surface
Heterogeneous reaction, so as to fulfill the efficient degradation of VOCs, after the gas after degraded removes moisture removal by the demister of top of tower, into
Enter next processing unit.The oxidant of spray is down sprayed by circulating pump by certain flow by flusher, is repeatedly followed
Discharged after ring filling by wastewater outlet pipe, and supplement fresh oxidant from oxidant storage tank and come.Used oxidant is
NaClO, high treating effect.PH adjusting agent storage tank can be used to adjust the acid-base value in wet oxidation reaction tower if necessary.
Further, pH adjusting agent storage tank is sulfuric acid storage tank or sodium hydroxide storage tank, can carry out soda acid reconciliation.
Further, manhole is offered on the top of each layer of packing layer, the side wall of wet oxidation reaction tower, it is convenient
Installation and repairing；The bottom of towe of wet oxidation reaction tower is raised to side and is communicated with spray liquid collecting box, the case of spray liquid collecting box
Top is equipped with the interior blender and pH meter for extending bottom, and running water inlet pipe, pH adjusting agent storage tank and oxidant storage tank are connected to
The case top of spray liquid collecting box, the inlet pipeline of circulating pump are communicated in the bottom of spray liquid collecting box, circulating pump and flusher
Import between pipeline in be equipped with flowmeter.The structure of spray liquid collecting box is convenient to install blender and pH meter, peace from top
Dress is convenient, even concentration after stirring；Also circulating pump can be adjusted according to flowmeter flow velocity, make the spray effect of flusher more preferable；
The pH value that pH meter measures can be also directed to, pH is adjusted by pH adjusting agent storage tank, reaction effect is more preferable.Running water inlet pipe, pH tune
Section agent storage tank and oxidant storage tank are connected to the case top of spray liquid collecting box, equal easy to be mixed directly in spray liquid collecting box
Even, the import that mixed liquor enters circulating pump from bottom by pipeline is circulated.
Another optionally improves scheme, and photo catalysis reactor completely or partially replaces with light-catalyzed reaction case, photocatalysis
Reaction chamber includes babinet, parallel in babinet to be inserted with more UV lamp pipes, one end inlet communication wet oxidation reaction tower of babinet
Top gas phase exports, the other end outlet fan inlet of babinet；UV lamp pipe is the UV mercury vapor lamps of 185nm-365nm.UV lamp
Pipe buying, install, be easy to use, and light-catalyzed reaction box structure is simple, easy to operate.
Another optionally improves scheme, and the oxidant NaClO solution in oxidant storage tank replaces with H2O2Or Fe/H2O2
Solution, the tower top of wet oxidation reaction tower are internally provided with row's photodissociation ultraviolet lamp, and photodissociation ultraviolet lamp is located at below demister, so
Just constitute UV/H2O2、UV/Fe/H2O2System.When oxidant is H2O2During solution, the photodissociation ultraviolet lamp below demister
O and OH free radicals can be produced with the hydrogen peroxide in photodegradation oxidant, O and OH free radicals drop inside tower body with waiting
Solution emission molecule collision is collided and reacted, and the dissociation yield of target molecule is improved, so as to improve the oxygen in wet oxidation reaction tower
Change efficiency.
Specifically, all photo catalysis reactors and/or light-catalyzed reaction case are in parallel using multigroup device, to expand at exhaust gas
Reason amount, gap is left between every group, and multigroup unification is installed on the light-catalyzed reaction module that an entirety is formed in stainless steel casing.
In addition, experimental study is individually carried out to simulation chemical industry organic exhaust gas using the wet oxidation reaction tower in the present invention.
Flow is：The exhaust gas that exhaust gas generator or exhaust gas air accumulator come out by gas mixer mixing, then by gas cushion into
One step after mixing, air-introduced machine effect under enter wet oxidation reaction tower in degrade, the gas after reaction by
Line gas analyzer detects its concentration, and the gas after degraded is up to standard is discharged by exhaust pipe.
Use bead to simulate chemical industry organic exhaust gas for the wet oxidation reaction tower degraded flowable state of filler (to give up containing dimethylbenzene
Gas), dimethylbenzene initial concentration is 300-1000mg/m3, gas flow rate 10-50m3/ h, the method and effect of exhaust gas of degrading are such as
Under：
Containing xylene emission is flowed out from exhaust gas generator gas outlet, after gas mixer and buffer mixing, is entered
Wet oxidation reaction tower.It is 10-50m to control gas flow rate by flowmeter3/ h, toluene initial concentration are 300-1000mg/m3,
After concentration is stablized, in oxidant storage tank with pump by a certain concentration to be oxidant at the top of spray liquid collecting box enter simultaneously and other
After solution is mixed, tower top is squeezed into by circulating pump and is sprayed, counter current contacting is carried out with the gas that bottom of towe flows into, in filler table
Face carries out heterogeneous reaction.
On-line gas analysis instrument synchronously detects the concentration of dimethylbenzene, so as to obtain its removal efficiency.The result shows that using first
Benzene initial concentration is 500mg/m3, in UV/Fe/H2O2In system, pH 3.5, gas flow rate 15m3/ h, dimethylbenzene removal rate
Up to 85.3%, removal rate is high, and reaction effect is good.
In addition, experimental study is individually carried out to simulation chemical industry organic exhaust gas using the photo catalysis reactor in the present invention.Stream
Cheng Wei：The exhaust gas that exhaust gas generator or exhaust gas air accumulator come out is by gas mixer mixing, then by gas cushion into one
Step after mixing, enters in photo catalysis reactor under air-introduced machine effect and degrades, the gas after reaction passes through online gas
Body analyzer detects its concentration, and the gas after degraded is up to standard is discharged by exhaust pipe.
This programme degraded flowable state simulation chemical industry organic exhaust gas (containing xylene emission), dimethylbenzene initial concentration is 50-
300mg/m3, gas flow rate 10-50m3/ h, the method and effect for exhaust gas of degrading are as follows：
(1) using two kinds of Excimer lamps of KrBr, XeBr as light source, catalyst TiO2, catalyst is using the side coated
Formula.
(2) containing xylene emission is flowed out from exhaust gas generator gas outlet, after gas mixer and buffer mixing, into
Enter photo catalysis reactor.It is 10-50m to control gas flow rate by flowmeter3/ h, toluene initial concentration are 50-300mg/m3, it is dense
After degree is stablized, excimer light source is opened, carries out photocatalytic degradation.
(3) on-line gas analysis instrument synchronously detects the concentration of dimethylbenzene, so as to obtain its removal efficiency.The result shows that adopt
With XeBr Excimer lamps, TiO2As catalyst, dimethylbenzene initial concentration is 110mg/m3, gas flow rate 15m3/ h, dimethylbenzene
Removal rate is up to 72.5%, dimethylbenzene removal rate higher, and reaction effect is more preferable.
In order to improve photolysis efficiency, vapor can be also passed through in gas, hydrone under the action of uv light, decomposes
Into O and OH free radicals, photolytic efficiency is improved.
In addition, experimental study is individually carried out to simulation chemical industry organic exhaust gas using the light-catalyzed reaction case in the present invention.With
The UV ultraviolet lamps of 14W are excitation source, by rational structure optimization, are designed to the complete model machine of small flow of operability, use
In simulation chemical industry organic exhaust gas degraded.Exhaust gas flow is 20-30m3/ h, microparticle thing concentration are 100mg/m3, VOCs concentration exists
81.2mg/m3, microparticle and organic matter effectively removed, and combination unit Removal efficiency of particulate matter is more than 85%, toluene removal
For rate more than 50%, particulate matter and volatile organic gases synthesis removal effect are more preferable.
Therefore, the present invention can combine 2 processing units therein (such as wet method according to the fluctuation of exhaust gas flow and property
Oxidation+photocatalysis or multistage filtering+wet oxidation) use, particulate matter and volatile organic gases synthesis removal effect are more preferable.
A kind of beneficial effect of the cleaning system of mixture for microparticle and volatile organic gases of the present invention is：
1. present invention employs three kinds of filtering, the chemical absorbing oxidation of wet oxidation equipment and UV photocatalysis processing mode associations
With purification, single filtering can be avoided to inhale absorption method the mixture of microparticle and VOCs is thoroughly purified, single chemistry
Oxidation can not carry out efficient absorption to volatile organic compounds, and single UV photocatalysis is to the net of high concentration volatile organic compounds
Change the defects such as effect is low, (or needs can not be individually handled using filtering, chemical absorbing oxidation or UV photocatalysis by a variety of
Big energy consumption) exhaust gas thoroughly decompose, substantially reduce the input of equipment cost, and its purification efficiency is high, floor space is small, installation
With it is easy to operate, operating cost is low, and 2 processing unit (examples therein can be combined according to the fluctuation of exhaust gas flow and property
Such as wet oxidation+photocatalysis or filtering+wet oxidation) use；
2. according to the ultraviolet wavelength corresponding to the main maximal ultraviolet absorption section for removing gaseous pollutant molecule, this hair
Bright adjustable variable high voltage power supply, can also change the low pressure mixed gas in gas-filled chamber, wavelength X adjustable extent is 100
Between~400nm, so as to obtain the ultraviolet light (vacuum ultraviolet VUV and UV) of different wave length, it can also change the species of catalyst, from
And the exhaust gas of targetedly degrade different component, different content, capacity usage ratio higher, exhaust-gas treatment effect are good, make pollution
Thing is effectively purified, flexible and convenient to use；Without the use of activated carbon adsorption, purification efficiency is high, and cost is low, using simple；
3. nitrogen chamber can constantly be passed in and out by nitrogen inlet and nitrogen outlet, the surface heat of electrodeless ultraviolet lamp can be taken away
Amount, while avoid O in air2Absorption to ultraviolet light, improves the utilization rate of light；
4. catalyst long-time service can produce failure, the present invention is used as the carrier of catalyst by catalyst glass slide, can
It is easy to use with periodic replacement；
5. outer barrel is rectangular cylinder, catalyst glass slide is facilitated to fix, use is more convenient.
Brief description of the drawings
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a kind of for microparticle and the technique stream of the cleaning system of the mixture of volatile organic gases of the present invention
Cheng Tu；
Fig. 2 is a kind of for microparticle and the opening side of the cleaning system of the mixture of volatile organic gases of the present invention
The front view of particulate filter after lid；
Fig. 3 is a kind of for microparticle and the air deflector of the cleaning system of the mixture of volatile organic gases of the present invention
Right view；
Fig. 4 is a kind of for microparticle and the wet method oxygen of the cleaning system of the mixture of volatile organic gases of the present invention
Change the wet process oxidation technology flow chart of reaction tower；
Fig. 5 is a kind of photocatalysis for microparticle and the cleaning system of the mixture of volatile organic gases of the present invention
The complete section schematic diagram of reactor；
Fig. 6 is a kind of photocatalysis for microparticle and the cleaning system of the mixture of volatile organic gases of the present invention
The complete section schematic diagram of reaction chamber.
Wherein:1. particulate filter, 11. air deflectors, 111. retainer rings, 112. wing plates, 113. sector channels, 12.
By-pass filtration material, 13. second level filtering materials, 14. third level filtering materials；2. wet oxidation reaction tower, 21. demisters,
22. packing layer, 23. flushers, 24. photodissociation ultraviolet lamps, 25. manholes, 26. spray liquid collecting boxs, 27. blenders, 28.pH
Meter, 29. flowmeters；3. light-catalyzed reaction module, 31. photo catalysis reactors, 311. electrodeless ultraviolet lamps, electrode in 3111.,
3112. external electrodes, 3113. variable high voltage supplies, 3114. gas-filled chambers, 312. quartz socket tubes, 313. outer barreies, 314. pipes
Plate, 3141. reaction gas inlets, the outlet of 3142. reaction gases, 315. catalytic reaction chambers, 316. polytetrafluoroethylstephanoporate stephanoporate rings, 317. nitrogen
Gas chamber, 318. catalyst glass slides, 32. light-catalyzed reaction casees, 321. babinets, 322.UV fluorescent tubes；4. wind turbine；5. flue gas emission fills
Put；6.pH conditioning agent storage tanks；7. oxidant storage tank；8. running water inlet pipe；9. circulating pump；10. wastewater outlet pipe.
Embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only with
Illustration illustrates the basic structure of the present invention, therefore it only shows composition related to the present invention.
A kind of purification system for microparticle and the mixture of volatile organic gases of the invention as shown in figs 1 to 6
The specific embodiment of system, it includes particulate filter 1, wet oxidation reaction tower 2, the light-catalyzed reaction mould of pipeline connection successively
Block 3, wind turbine 4 and smoke discharging device 5；The single photo catalysis reactor 31 of light-catalyzed reaction module 3 multiple is arranged in parallel
Photo catalysis reactor 31；Photo catalysis reactor 31 includes electrodeless ultraviolet lamp 311, quartz socket tube 312 and outer barrel 313, electrodeless purple
Outer lamp 311 includes interior electrode 3111, external electrode 3112 and variable high voltage supplies 3113, between interior electrode 3111 and external electrode 3112
Equipped with gas-filled chamber 3114, gas-filled chamber 3114 interior mixed gas or inert gas filled with inert gas and halogen gas
With the mixed gas of mercuryvapour, interior electrode 3111 and external electrode 3112 are being connected to variable high voltage supplies 3113 just correspondingly
Anode；Quartz socket tube 312 and outer barrel 313 are sheathed on electrodeless ultraviolet lamp 311 successively from inside to outside, and the two of quartz socket tube 312
End outer cover is equipped with tube sheet 314, and outer barrel 313 is fixed on quartz socket tube 312 by tube sheet 314, and a tube sheet 314 is equipped with
Reaction gas inlet 3141, the top gaseous phase outlet of 3141 pipeline of reaction gas inlet connection wet oxidation reaction tower 2, wet oxidation are anti-
The top gaseous phase exit of tower 2 is answered to be equipped with demister 21, the gas phase import of wet oxidation reaction tower 2 is located at bottom of towe；Another pipe
Plate 314 is equipped with reaction gas outlet 3142, and reaction gas exports connection 4 import of wind turbine of 3142 pipelines；313, two tube sheets of outer barrel
Catalytic reaction chamber 315 is formed between 314 and quartz socket tube 312；It is more that polytetrafluoroethylene (PTFE) is fixed with inside the both ends of quartz socket tube 312
Orifice ring 316, the both ends of electrodeless ultraviolet lamp 311 are arranged in two polytetrafluoroethylstephanoporate stephanoporate rings 316 correspondingly；Quartz socket tube
312nd, nitrogen chamber 317 is formed between two polytetrafluoroethylstephanoporate stephanoporate rings 316 and electrodeless ultraviolet lamp 311；One end of quartz socket tube 312
For nitrogen inlet, the other end of quartz socket tube 312 is nitrogen outlet, and nitrogen inlet and nitrogen outlet pass through respective poly- four respectively
Through hole connection nitrogen chamber 317 in vinyl fluoride porous ring 316；Outer barrel 313 is rectangular cylinder, each inner wall of outer barrel 313
On be uniformly fixed with multiple catalyst glass slides 318, be uniformly coated with catalyst on catalyst glass slide 318.
The present embodiment cleaning system work when, open wind turbine 4, the exhaust gas containing particulate and volatile organic gases by
Grain thing filter 1 enters, and the gas feed of wet oxidation reaction tower 2 is located at bottom of towe and is located at the lowermost.In the rising of gas
During, the aqueous oxidizing agent solution of gas and top spray carries out cross-flow reaction, and oxidation reaction production innocuous substance, produces at the same time
Waste water into bottom of towe store.The gas that most of VOCs is absorbed by wet oxidation reaction tower 2 passes through through 21 demisting of demister
Afterwards, then by pipeline into light-catalyzed reaction module 3 the further oxidation, purification of organic exhaust gas is carried out, organic exhaust gas is anti-in photocatalysis
Answer and directly decompose or aoxidized by the living radical of catalyst surface under the ultraviolet of the generation of module 3, after three-level purifies
Exhaust gas driven via wind turbine 4, discharged into smoke discharging device 5.Wherein, smoke discharging device 5 is preferably chimney.
The present embodiment employs three kinds of filtering, the chemical absorbing oxidation of wet oxidation equipment and UV photocatalysis processing mode associations
With purification, single filtering can be avoided to inhale absorption method the mixture of microparticle and VOCs is thoroughly purified, single chemistry
Oxidation can not carry out efficient absorption to volatile organic compounds, and single UV photocatalysis is to the net of high concentration volatile organic compounds
Change the defects such as effect is low, (or needs can not be individually handled using filtering, chemical absorbing oxidation or UV photocatalysis by a variety of
Big energy consumption) exhaust gas thoroughly decompose, substantially reduce the input of equipment cost, and its purification efficiency is high, floor space is small, installation
With it is easy to operate, operating cost is low, and 2 processing unit (examples therein can be combined according to the fluctuation of exhaust gas flow and property
Such as wet oxidation+photocatalysis or filtering+wet oxidation) use.
In addition, in photo catalysis reactor 31 in light-catalyzed reaction module 3, in the exhaust gas after wet oxidation from reaction
After gas import 3141 enters catalytic reaction chamber 315, variable high voltage supplies 3113 are powered, and are encouraged and shone using dielectric barrier discharge,
And the low pressure gaseous mixture between two-layered medium is excited using discharge voltage and the adjustable variable high voltage supplies 3113 of input power
Body (rare gas-mercuryvapour or rare gas-halogen) electric discharge produces Excimer UV radiation, and low pressure mixed gas is excited
Volatile organic waste gas in catalytic reaction chamber 315 of the Excimer UV light of generation to outside quartz socket tube 312 is further thorough
Ground decomposes, and the innocuous gas being decomposed to form drives from 3142 discharge of reaction gas outlet via wind turbine 4, is filled into flue gas emission
5 discharges are put, have thoroughly purified volatile organic gases, reach no pollution discharge.Gaseous pollutant molecule is removed according to main
Maximal ultraviolet absorption section corresponding to ultraviolet wavelength, the present embodiment adjustable variable high voltage power supply 3113, can also change
Low pressure mixed gas in gas-filled chamber 3114, wavelength X adjustable extent is between 100~400nm, so as to obtain different ripples
Long ultraviolet light (vacuum ultraviolet VUV and UV), can also change the species of catalyst, so that different component of targetedly degrading,
The exhaust gas of different content, capacity usage ratio higher, exhaust-gas treatment effect is good, pollutant is effectively purified, using flexible
It is convenient.
Wherein, nitrogen chamber 317 can constantly be passed in and out by nitrogen inlet and nitrogen outlet, can take away electrodeless ultraviolet lamp 311
Surface heat, while avoid O in air2Absorption to ultraviolet light, improves the utilization rate of light.
In addition, catalyst long-time service can produce failure, the present embodiment is used as catalyst by catalyst glass slide 318
Carrier, can regularly replace, easy to use.In addition, outer barrel 313 is rectangular cylinder, catalyst glass slide 318 is facilitated to fix,
Using more convenient.
Specifically, 312 outer surface of quartz socket tube is uniformly coated with catalyst, further increases catalytic effect.In addition, work as
After catalyst failure, also erasable, and smear new catalyst again is easy to use.
Preferably, catalyst is pure TiO2, molecular sieve, activated alumina or or doping nonmetalloid TiO2；Further
Ground is preferred, and catalyst is the TiO of doped graphene2。
Specifically, air deflector 11 is equipped with the exhaust gas inlet of particulate filter 1, air deflector 11 has been arranged concentrically multiple solid
Determine ring 111, separated between two retainer rings 111 of arbitrary neighborhood by multiple circumference uniform distributions and the wing plate 112 radially arranged
Into multiple sector channels 113.The structure is uniformly distributed easy to exhaust gas and water conservancy diversion enters in the filtration channel of particulate filter 1.
Further, on from the import of particulate filter 1 toward export direction, in the filtration channel of particulate filter 1
It is disposed with first order filtering material 12, second level filtering material 13 and third level filtering material 14, first order filtering material
12 be the filter plates that polylith is arranged in parallel, and is equipped with gap between two filter plates of arbitrary neighborhood, is evenly equipped with every piece of filter plate
Filter hole；On from the import of particulate filter 1 toward export direction, the decreasing pore size of the filter hole of filter plate, the mistake of filter plate
The density of filter opening is incremented by；Second level filtering material 13 is mineral wool, and third level filtering material 14 is the filter paper that multiple are stacked.
The three-stage filtration material of the present embodiment can be installed on detachability porous support on, filtrate fill when ensure gas by when hinder
Overcoming may be low；In addition as shown in Fig. 2, the housing side of particulate filter 1 can set and multiple be easily installed three-stage filtration material
The mounting hole of material, is sealed with blind flange again after installing；The pore size filter and filter gap of the filtration of plural serial stage are wide
Degree successively decreases step by step, realizes the step filtering purifying to exhaust gas, adds filter area, enhances filter effect, and then improve
The removal rate of microparticle.
Further, the pH adjusting agent inlet pipeline of wet oxidation reaction tower 2 is connected to pH adjusting agent storage tank 6, wet method oxygen
The oxidant inlet pipeline for changing reaction tower 2 is connected to oxidant storage tank 7, and wet oxidation reaction tower 2 is communicated with running water inlet pipe
8；Demister 21 and multiple packing layers 22 are installed successively from the bottom up, each top of packing layer 22 is all provided with wet oxidation reaction tower 2
Flusher 23 is equipped with, the import of each flusher 23 is connected to circulating pump 9 by pipeline, and the inlet pipeline of circulating pump 9 connects
The bottom of towe of wet oxidation reaction tower 2 is passed to, the bottom of towe of wet oxidation reaction tower 2 is communicated with wastewater outlet pipe 10, and wet oxidation is anti-
Answer tower 2 gas phase import be located at lower end packing layer 22 lower section；Oxidant in oxidant storage tank 7 is stronger for oxidisability
NaClO.Wet oxidation reaction tower 2 can set at least one set of flusher 23 and demister 21, be set in wet oxidation reaction tower 2
Oxidative absorption liquid is uniformly sprayed on filler by nozzle, when exhaust gas passes through filler, the contact surface of increase exhaust gas and oxidative absorption liquid
Product, increases absorption efficiency.The wet oxidation reaction tower 2 of the present embodiment is heterogeneous reaction tower, passes through the supporting items such as grid in tower
Packing layer 22 is installed, the filler in packing layer 22 is preferably bead.Organic gas in exhaust gas passes through packed tower from the bottom up
When, contacted with the oxidant cross-flow of top spray, heterogeneous reaction is carried out on filler surface, so as to fulfill the efficient drop of VOCs
Solution, after the gas after degraded removes moisture removal by the demister 21 of top of tower, into next processing unit.The oxidant of spray
Down sprayed by flusher 23 by certain flow by circulating pump 9, pass through 10 row of wastewater outlet pipe after repeatedly circulating saturation
Go out, and supplement fresh oxidant from oxidant storage tank 7 and come.Used oxidant is NaClO, high treating effect.If necessary
PH adjusting agent storage tank 6 can be used to adjust the acid-base value in wet oxidation reaction tower 2.
Further, pH adjusting agent storage tank 6 is sulfuric acid storage tank or sodium hydroxide storage tank, can carry out soda acid reconciliation.
Further, manhole is offered on the top of each layer of packing layer 22, the side wall of wet oxidation reaction tower 2
25, facilitate installation and repairing；The bottom of towe of wet oxidation reaction tower 2 is raised to side and is communicated with spray liquid collecting box 26, spray liquid
The case top of collecting box 26 is equipped with the interior blender 27 and pH meter 28 for extending bottom, running water inlet pipe 8,6 and of pH adjusting agent storage tank
Oxidant storage tank 7 is connected to the case top of spray liquid collecting box 26, and the inlet pipeline of circulating pump 9 is communicated in spray liquid collecting box 26
Bottom, be equipped with flowmeter 29 in the pipeline between the import of circulating pump 9 and flusher 23.The structure of spray liquid collecting box 26
It is convenient that blender 27 and pH meter 28, easy for installation, even concentration after stirring are installed from top；Can also be according to 29 flow velocity tune of flowmeter
Circulating pump 9 is saved, makes the spray effect of flusher 23 more preferable；The pH value that pH meter 28 measures can be also directed to, is stored up by pH adjusting agent
Tank 6 adjusts pH, and reaction effect is more preferable.Running water inlet pipe 8, pH adjusting agent storage tank 6 and oxidant storage tank 7 are connected to spray liquid
The case top of collecting box 26, easy to be uniformly mixed directly in spray liquid collecting box 26, mixed liquor is entered from bottom by pipeline to follow
The import of ring pump 9 is circulated.
Another optionally improves scheme, and photo catalysis reactor 31 is all or part of to replace with light-catalyzed reaction case 32, light
Catalytic reaction case 32 includes babinet 321, and parallel in babinet 321 to be inserted with more UV lamp pipes 322, one end import of babinet 321 connects
The top gas phase outlet of logical wet oxidation reaction tower 2,4 import of other end outlet wind turbine of babinet 321；UV lamp pipe 322 is
The UV mercury vapor lamps of 185nm-365nm.UV lamp pipe 322 is purchased, installed, is easy to use, and light-catalyzed reaction case 32 is simple in structure, operation
It is convenient.
Another optionally improves scheme, and the oxidant NaClO solution in oxidant storage tank 7 replaces with H2O2Or Fe/H2O2
Solution, the tower top of wet oxidation reaction tower 2 are internally provided with row's photodissociation ultraviolet lamp 24, and photodissociation ultraviolet lamp 24 is located under demister 21
Side, thus constitutes UV/H2O2、UV/Fe/H2O2System.When oxidant is H2O2During solution, the light positioned at the lower section of demister 21
O and OH free radicals can be produced with the hydrogen peroxide in photodegradation oxidant by solving ultraviolet lamp 24, O and OH free radicals are in tower body
It is internal to collide and react with emission molecule to be degraded, the dissociation yield of target molecule is improved, so that it is anti-to improve wet oxidation
Answer the oxidation efficiency in tower 2.
Specifically, all photo catalysis reactors 31 and/or light-catalyzed reaction case 32 are in parallel using multigroup device, useless to expand
Gas disposal amount, gap is left between every group, and multigroup unification is installed on the light-catalyzed reaction that an entirety is formed in stainless steel casing
Module 3.
In addition, individually experiment is carried out to simulation chemical industry organic exhaust gas and is ground using the wet oxidation reaction tower 2 in the present invention
Study carefully.Flow is：The exhaust gas that exhaust gas generator or exhaust gas air accumulator come out is mixed by gas mixer, then by gas cushion
Further after mixing, enter under air-introduced machine effect in wet oxidation reaction tower 2 and degrade, the gas after reaction passes through
On-line gas analysis instrument detects its concentration, and the gas after degraded is up to standard is discharged by exhaust pipe.
Use bead to simulate chemical industry organic exhaust gas for the degraded flowable state of wet oxidation reaction tower 2 of filler and (contain dimethylbenzene
Exhaust gas), dimethylbenzene initial concentration is 300-1000mg/m3, gas flow rate 10-50m3/ h, the method and effect of exhaust gas of degrading are such as
Under：
Containing xylene emission is flowed out from exhaust gas generator gas outlet, after gas mixer and buffer mixing, is entered
Wet oxidation reaction tower 2.It is 10-50m to control gas flow rate by flowmeter3/ h, toluene initial concentration are 300-1000mg/m3,
After concentration is stablized, from oxidant storage tank 7 it is inner with pump by a certain concentration be oxidant from the entrance of the top of spray liquid collecting box 26 and with
After other solution are mixed, tower top is squeezed into by circulating pump 9 and is sprayed, counter current contacting is carried out with the gas that bottom of towe flows into,
Filler surface carries out heterogeneous reaction.
On-line gas analysis instrument synchronously detects the concentration of dimethylbenzene, so as to obtain its removal efficiency.The result shows that using first
Benzene initial concentration is 500mg/m3, in UV/Fe/H2O2In system, pH 3.5, gas flow rate 15m3/ h, dimethylbenzene removal rate
Up to 85.3%, removal rate is high, and reaction effect is good.
In addition, experimental study is individually carried out to simulation chemical industry organic exhaust gas using the photo catalysis reactor 31 in the present invention.
Flow is：The exhaust gas that exhaust gas generator or exhaust gas air accumulator come out by gas mixer mixing, then by gas cushion into
One step after mixing, air-introduced machine effect under enter photo catalysis reactor 31 in degrade, the gas after reaction by
Line gas analyzer detects its concentration, and the gas after degraded is up to standard is discharged by exhaust pipe.
This programme degraded flowable state simulation chemical industry organic exhaust gas (containing xylene emission), dimethylbenzene initial concentration is 50-
300mg/m3, gas flow rate 10-50m3/ h, the method and effect for exhaust gas of degrading are as follows：
(1) using two kinds of Excimer lamps of KrBr, XeBr as light source, catalyst TiO2, catalyst is using the side coated
Formula.
(2) containing xylene emission is flowed out from exhaust gas generator gas outlet, after gas mixer and buffer mixing, into
Enter photo catalysis reactor 31.It is 10-50m to control gas flow rate by flowmeter3/ h, toluene initial concentration are 50-300mg/m3,
After concentration is stablized, excimer light source is opened, carries out photocatalytic degradation.
(3) on-line gas analysis instrument synchronously detects the concentration of dimethylbenzene, so as to obtain its removal efficiency.The result shows that adopt
With XeBr Excimer lamps, TiO2As catalyst, dimethylbenzene initial concentration is 110mg/m3, gas flow rate 15m3/ h, dimethylbenzene
Removal rate is up to 72.5%, dimethylbenzene removal rate higher, and reaction effect is more preferable.
In order to improve photolysis efficiency, vapor can be also passed through in gas, hydrone under the action of uv light, decomposes
Into O and OH free radicals, photolytic efficiency is improved.
In addition, experimental study is individually carried out to simulation chemical industry organic exhaust gas using the light-catalyzed reaction case 32 in the present invention.
Using the UV ultraviolet lamps of 14W as excitation source, by rational structure optimization, the complete model machine of small flow of operability is designed to,
For simulating the degraded of chemical industry organic exhaust gas.Exhaust gas flow is 20-30m3/ h, microparticle thing concentration are 100mg/m3, VOCs concentration exists
81.2mg/m3, microparticle and organic matter effectively removed, and combination unit Removal efficiency of particulate matter is more than 85%, toluene removal
For rate more than 50%, particulate matter and volatile organic gases synthesis removal effect are more preferable.
Therefore, it is (such as wet can to combine 2 processing units therein according to the fluctuation of exhaust gas flow and property for the present embodiment
Method oxidation+photocatalysis or multistage filtering+wet oxidation) use, particulate matter and volatile organic gases synthesis removal effect are more preferable.
It should be appreciated that specific embodiment described above is only used for explaining the present invention, it is not intended to limit the present invention.By
Among the spiritual changes and variations that derived from of the present invention are still in protection scope of the present invention.
Claims (10)
- A kind of 1. cleaning system for microparticle and the mixture of volatile organic gases, it is characterised in that：Including managing successively Particulate filter (1), wet oxidation reaction tower (2), light-catalyzed reaction module (3), wind turbine (4) and the flue gas emission of road connection Device (5)；The light-catalyzed reaction module (3) is single photo catalysis reactor (31) or multiple light-catalyzed reactions being arranged in parallel Device (31)；The photo catalysis reactor (31) includes electrodeless ultraviolet lamp (311), quartz socket tube (312) and outer barrel (313), institute Stating electrodeless ultraviolet lamp (311) includes interior electrode (3111), external electrode (3112) and variable high voltage supplies (3113), the interior electrode (3111) gas-filled chamber (3114) is equipped between external electrode (3112), the gas-filled chamber (3114) is interior filled with indifferent gas The mixed gas or inert gas of body and halogen gas and the mixed gas of mercuryvapour, the interior electrode (3111) and external electrode (3112) positive and negative anodes of variable high voltage supplies (3113) are connected to correspondingly；The quartz socket tube (312) and outer barrel (313) it is sheathed on successively from inside to outside on electrodeless ultraviolet lamp (311), the both ends outer cover of the quartz socket tube (312) is equipped with pipe Plate (314), the outer barrel (313) are fixed on quartz socket tube (312) by tube sheet (314), and a tube sheet (314) is equipped with Reaction gas inlet (3141), the top gaseous phase outlet of reaction gas inlet (3141) the pipeline connection wet oxidation reaction tower (2), The top gaseous phase exit of the wet oxidation reaction tower (2) is equipped with demister (21), the gas of the wet oxidation reaction tower (2) Phase import is located at bottom of towe；Another tube sheet (314) is equipped with reaction gas outlet (3142), and the reaction gas exports (3142) pipeline Connect wind turbine (4) import；Catalytic reaction is formed between the outer barrel (313), two tube sheets (314) and quartz socket tube (312) Chamber (315)；Polytetrafluoroethylstephanoporate stephanoporate ring (316), the electrodeless ultraviolet lamp are fixed with inside the both ends of the quartz socket tube (312) (311) both ends are arranged in two polytetrafluoroethylstephanoporate stephanoporate rings (316) correspondingly；The quartz socket tube (312), two Nitrogen chamber (317) is formed between polytetrafluoroethylstephanoporate stephanoporate ring (316) and electrodeless ultraviolet lamp (311)；The quartz socket tube (312) One end is nitrogen inlet, and the other end of the quartz socket tube (312) is nitrogen outlet, the nitrogen inlet and nitrogen outlet difference Nitrogen chamber (317) is connected by the through hole on respective polytetrafluoroethylstephanoporate stephanoporate ring (316)；The outer barrel (313) is rectangle Cylinder, multiple catalyst glass slides (318) are uniformly fixed with each inner wall of the outer barrel (313), and the catalyst carries Uniformly catalyst is coated with slide (318).
- 2. a kind of cleaning system for microparticle and the mixture of volatile organic gases according to claim 1, its It is characterized in that：Quartz socket tube (312) outer surface is uniformly coated with catalyst.
- 3. a kind of cleaning system for microparticle and the mixture of volatile organic gases according to claim 1 or 2, It is characterized in that：The catalyst is pure TiO2, molecular sieve, activated alumina or or doping nonmetalloid TiO2。
- 4. a kind of cleaning system for microparticle and the mixture of volatile organic gases according to claim 1, its It is characterized in that：Air deflector (11) is equipped with the exhaust gas inlet of the particulate filter (1), the air deflector (11) is arranged concentrically There are multiple retainer rings (111), arrange by multiple circumference uniform distributions and radially between two retainer rings (111) of arbitrary neighborhood Wing plate (112) is separated into multiple sector channels (113).
- A kind of 5. purification system for microparticle and the mixture of volatile organic gases according to claim 1,2 or 4 System, it is characterised in that：On from the import of particulate filter (1) toward export direction, the filtering of the particulate filter (1) is led to It is disposed with first order filtering material (12), second level filtering material (13) and third level filtering material (14) in road, first Level filtering material (12) is the filter plate that polylith is arranged in parallel, and gap, every piece of mistake are equipped between two filter plates of arbitrary neighborhood Filter hole is evenly equipped with filter plate；On from the import of particulate filter (1) toward export direction, the hole of the filter hole of the filter plate Footpath is successively decreased, and the density of the filter hole of the filter plate is incremented by；Second level filtering material (13) is mineral wool, and third level material is more Open the filter paper being stacked.
- 6. a kind of cleaning system for microparticle and the mixture of volatile organic gases according to claim 1, its It is characterized in that：The pH adjusting agent inlet pipeline of the wet oxidation reaction tower (2) is connected to pH adjusting agent storage tank (6), described wet The oxidant inlet pipeline of method oxidation reaction tower (2) is connected to oxidant storage tank (7), wet oxidation reaction tower (2) connection There is running water inlet pipe (8)；Demister (21) and multiple fillers are installed successively from the bottom up in the wet oxidation reaction tower (2) Layer (22), each packing layer (22) top are both provided with flusher (23), and the import of each flusher (23) is connected by pipeline Circulating pump (9) is passed to, the inlet pipeline of the circulating pump (9) is connected to the bottom of towe of wet oxidation reaction tower (2), and wet oxidation is anti- The bottom of towe of tower (2) is answered to be communicated with wastewater outlet pipe (10), the gas phase import of the wet oxidation reaction tower (2) is located at filling out for lower end The lower section of the bed of material (22)；Oxidant in the oxidant storage tank (7) is NaClO.
- 7. a kind of cleaning system for microparticle and the mixture of volatile organic gases according to claim 6, its It is characterized in that：The pH adjusting agent storage tank (6) is sulfuric acid storage tank or sodium hydroxide storage tank.
- 8. a kind of cleaning system for microparticle and the mixture of volatile organic gases according to claim 6 or 7, It is characterized in that：Manhole is offered on the top of each layer of packing layer (22), the side wall of the wet oxidation reaction tower (2) (25)；The bottom of towe of the wet oxidation reaction tower (2) is raised to side and is communicated with spray liquid collecting box (26), the spray liquid The case top of collecting box (26) is equipped with the interior blender (27) and pH meter (28) for extending bottom, the running water inlet pipe (8), pH tune Section agent storage tank (6) and oxidant storage tank (7) are connected to the case top of spray liquid collecting box (26), the import of the circulating pump (9) Pipeline is communicated in the bottom of spray liquid collecting box (26), the pipeline between the circulating pump (9) and the import of flusher (23) In be equipped with flowmeter (29).
- 9. a kind of cleaning system for microparticle and the mixture of volatile organic gases according to claim 1, its It is characterized in that：The photo catalysis reactor (31) completely or partially replaces with light-catalyzed reaction case (32), the light-catalyzed reaction Case (32) includes babinet (321), parallel in the babinet (321) to be inserted with more UV lamp pipes (322), the babinet (321) The top gas phase outlet of one end inlet communication wet oxidation reaction tower (2), the other end outlet wind turbine of the babinet (321) (4) import；The UV lamp pipe (322) is the UV mercury vapor lamps of 185nm-365nm.
- 10. a kind of cleaning system for microparticle and the mixture of volatile organic gases according to claim 6, its It is characterized in that：Oxidant NaClO solution in the oxidant storage tank (7) replaces with H2O2Or Fe/H2O2Solution, the wet method The tower top of oxidation reaction tower (2) is internally provided with row's photodissociation ultraviolet lamp (24), and the photodissociation ultraviolet lamp (24) is located at demister (21) lower section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711118601.2A CN107930364A (en) | 2017-11-14 | 2017-11-14 | A kind of cleaning system for microparticle and the mixture of volatile organic gases |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711118601.2A CN107930364A (en) | 2017-11-14 | 2017-11-14 | A kind of cleaning system for microparticle and the mixture of volatile organic gases |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107930364A true CN107930364A (en) | 2018-04-20 |
Family
ID=61934998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711118601.2A Pending CN107930364A (en) | 2017-11-14 | 2017-11-14 | A kind of cleaning system for microparticle and the mixture of volatile organic gases |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107930364A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108731000A (en) * | 2018-07-16 | 2018-11-02 | 衢州市求是科技联合会 | Organic wastewater flameless combustion and wet oxidation process device and process |
| CN110170244A (en) * | 2019-07-06 | 2019-08-27 | 郭绍华 | Luminescent device packed tower |
| CN110988315A (en) * | 2019-12-30 | 2020-04-10 | 长安大学 | Simulation device and method for detecting degradation efficiency of tail gas of asphalt mixture |
| CN111068509A (en) * | 2019-12-10 | 2020-04-28 | 上海师范大学 | Reactor for full decomposition of volatile organic pollutants based on Fenton-photocatalysis combination |
| CN111603929A (en) * | 2020-05-30 | 2020-09-01 | 西安交通大学 | System and method for treating VOCs by excimer light coupling catalysis means |
| CN111921323A (en) * | 2020-08-15 | 2020-11-13 | 巩义市恒铭金属制品有限公司 | Oil fume purification treatment method for industrial oil quenching |
| CN112076544A (en) * | 2019-06-13 | 2020-12-15 | 广东美的制冷设备有限公司 | Screen assembly, air purification device and air conditioner |
| CN112642280A (en) * | 2020-12-17 | 2021-04-13 | 中航沈飞民用飞机有限责任公司 | Automatic monitorable waste gas capture system of aluminum alloy oxidation production line |
| CN112938234A (en) * | 2021-02-27 | 2021-06-11 | 程文忠 | Spontaneous combustion preventing and odor preventing garbage can for green city |
| CN113058337A (en) * | 2021-03-26 | 2021-07-02 | 焦作大学 | Detection apparatus for chemical waste gas for environmental protection |
| CN113198290A (en) * | 2021-05-14 | 2021-08-03 | 中国科学院空间应用工程与技术中心 | Device and method for purifying organic waste gas in space environment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120046952A (en) * | 2010-11-03 | 2012-05-11 | 코아텍주식회사 | Continuous remove method and equipment of led manufacturing process exhaust gas using wet-scrubber and catalyst reaction scrubber |
| CN105709516A (en) * | 2016-03-07 | 2016-06-29 | 苏州保酚环境科技有限公司 | Multifunctional dust removing filter |
| CN106268229A (en) * | 2016-08-16 | 2017-01-04 | 南京格洛特环境工程股份有限公司 | A kind of technique of Hydrodynamic cavitation intensive treatment volatile organic waste gas |
| CN206184237U (en) * | 2016-08-31 | 2017-05-24 | 海南兴能泰环境科技有限公司 | Volatile organic exhaust gas's advanced oxidation purifier among improvement perfume production |
| CN106745479A (en) * | 2016-11-21 | 2017-05-31 | 江苏理工学院 | A kind of short wavelength's electrodeless ultraviolet light purifies waste water/pure water device and method |
-
2017
- 2017-11-14 CN CN201711118601.2A patent/CN107930364A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120046952A (en) * | 2010-11-03 | 2012-05-11 | 코아텍주식회사 | Continuous remove method and equipment of led manufacturing process exhaust gas using wet-scrubber and catalyst reaction scrubber |
| CN105709516A (en) * | 2016-03-07 | 2016-06-29 | 苏州保酚环境科技有限公司 | Multifunctional dust removing filter |
| CN106268229A (en) * | 2016-08-16 | 2017-01-04 | 南京格洛特环境工程股份有限公司 | A kind of technique of Hydrodynamic cavitation intensive treatment volatile organic waste gas |
| CN206184237U (en) * | 2016-08-31 | 2017-05-24 | 海南兴能泰环境科技有限公司 | Volatile organic exhaust gas's advanced oxidation purifier among improvement perfume production |
| CN106745479A (en) * | 2016-11-21 | 2017-05-31 | 江苏理工学院 | A kind of short wavelength's electrodeless ultraviolet light purifies waste water/pure water device and method |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108731000A (en) * | 2018-07-16 | 2018-11-02 | 衢州市求是科技联合会 | Organic wastewater flameless combustion and wet oxidation process device and process |
| CN108731000B (en) * | 2018-07-16 | 2023-10-20 | 衢州市求是科技联合会 | Flameless combustion and wet oxidation treatment device for organic wastewater |
| CN112076544B (en) * | 2019-06-13 | 2021-10-26 | 广东美的制冷设备有限公司 | Screen assembly, air purification device and air conditioner |
| CN112076544A (en) * | 2019-06-13 | 2020-12-15 | 广东美的制冷设备有限公司 | Screen assembly, air purification device and air conditioner |
| CN110170244A (en) * | 2019-07-06 | 2019-08-27 | 郭绍华 | Luminescent device packed tower |
| CN110170244B (en) * | 2019-07-06 | 2023-12-19 | 广东风和洁净工程有限公司 | Light-emitting device packing tower |
| CN111068509A (en) * | 2019-12-10 | 2020-04-28 | 上海师范大学 | Reactor for full decomposition of volatile organic pollutants based on Fenton-photocatalysis combination |
| CN110988315A (en) * | 2019-12-30 | 2020-04-10 | 长安大学 | Simulation device and method for detecting degradation efficiency of tail gas of asphalt mixture |
| CN110988315B (en) * | 2019-12-30 | 2022-04-26 | 长安大学 | Simulation device and method for detecting degradation efficiency of tail gas of asphalt mixture |
| CN111603929A (en) * | 2020-05-30 | 2020-09-01 | 西安交通大学 | System and method for treating VOCs by excimer light coupling catalysis means |
| CN111921323A (en) * | 2020-08-15 | 2020-11-13 | 巩义市恒铭金属制品有限公司 | Oil fume purification treatment method for industrial oil quenching |
| CN112642280A (en) * | 2020-12-17 | 2021-04-13 | 中航沈飞民用飞机有限责任公司 | Automatic monitorable waste gas capture system of aluminum alloy oxidation production line |
| CN112938234A (en) * | 2021-02-27 | 2021-06-11 | 程文忠 | Spontaneous combustion preventing and odor preventing garbage can for green city |
| CN112938234B (en) * | 2021-02-27 | 2023-03-28 | 嘉兴倍创网络科技有限公司 | Spontaneous combustion preventing and odor preventing garbage can for green city |
| CN113058337A (en) * | 2021-03-26 | 2021-07-02 | 焦作大学 | Detection apparatus for chemical waste gas for environmental protection |
| CN113198290A (en) * | 2021-05-14 | 2021-08-03 | 中国科学院空间应用工程与技术中心 | Device and method for purifying organic waste gas in space environment |
| CN113198290B (en) * | 2021-05-14 | 2024-06-07 | 中国科学院空间应用工程与技术中心 | Device and method for purifying organic waste gas in space environment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107930364A (en) | A kind of cleaning system for microparticle and the mixture of volatile organic gases | |
| CN201997261U (en) | Compound catalytic treatment device for industrial waste gas | |
| CN108273344A (en) | A kind of integrated-type organic waste gas treatment device | |
| CN202762288U (en) | Multi-tube parallel type low-temperature plasma device for purifying harmful gas | |
| CN205412680U (en) | Air cleaning device | |
| CN107349767A (en) | Organic waste gas treatment device | |
| CN207628198U (en) | Organic waste gas treatment device | |
| CN202762284U (en) | Low-temperature plasma reaction tube for harmful gas purification | |
| CN108392951B (en) | Low-temperature plasma gas purification device | |
| CN208599484U (en) | Module type UV- nano-TiO for low-concentration organic exhaust gas processing2Photocatalysis apparatus | |
| CN107252627A (en) | A kind of VOCs handling process and equipment | |
| CN209917632U (en) | Low concentration VOCs organic waste gas purifying equipment | |
| CN207102266U (en) | A kind of low temperature plasma Coupling Adsorption method processing VOCs and foul gas device | |
| CN108993141A (en) | A kind of emission-control equipment | |
| CN110559827B (en) | Treatment process of papermaking waste gas | |
| CN210251748U (en) | Waste gas purifying equipment | |
| CN206823397U (en) | A kind of VOC off-gas cleaning equipments | |
| CN206082107U (en) | Industry organic waste gas purification device | |
| CN107998881B (en) | Modular UV-nano TiO for low-concentration organic waste gas treatment2Photocatalytic device | |
| CN204337990U (en) | A kind of UV photodissociation cleaning equipment processing petrifaction sewage stench | |
| CN207970679U (en) | A kind of waste gas purification apparatus | |
| CN206810061U (en) | A kind of VOCs processing equipments | |
| CN207307612U (en) | A kind of photodissociation photocatalysis equipment for treating industrial waste gas | |
| CN207102274U (en) | Gas cleaning plant | |
| CN215901282U (en) | Photocatalyst and photolysis combined type oil smoke purification and collection hood |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180420 |
|
| RJ01 | Rejection of invention patent application after publication |