CN206730855U - A kind of device for handling hydrophobicity organic exhaust gas - Google Patents
A kind of device for handling hydrophobicity organic exhaust gas Download PDFInfo
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- CN206730855U CN206730855U CN201621167701.5U CN201621167701U CN206730855U CN 206730855 U CN206730855 U CN 206730855U CN 201621167701 U CN201621167701 U CN 201621167701U CN 206730855 U CN206730855 U CN 206730855U
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Abstract
The utility model discloses a kind of device for handling hydrophobicity organic exhaust gas, including：Gas sampling mechanism；Waste gas heat exchange mechanism；Waste gas dedusting mechanism；Dielectric barrier discharge reactor, it is provided with air inlet and gas outlet, the air inlet is connected with the waste gas dedusting mechanism, gas distributed area is provided with the air inlet, discharge catalytic reaction zone is provided with close to the gas distributed area, accessory substance catalytic decomposition area is provided with close to discharge catalytic reaction zone, is provided with plenum zone close to accessory substance catalytic decomposition area, the gas outlet is at the plenum zone；Power sector, it is connected with the discharge catalytic reaction zone；And biofilm reactor, it is connected with the gas outlet in the dielectric barrier discharge reactor.Device of the present utility model, using dielectric barrier discharge as preconditioning technique, preliminary exposition is carried out to hydrophobicity organic exhaust gas, breaks the hydrophobicity of pollutant, be effectively increased the efficiency and effect of biofilm reactor processing organic exhaust gas.
Description
Technical field
Processing exhaust device instrument field is the utility model is related to, more particularly to a kind of dress for handling hydrophobicity organic exhaust gas
Put.
Background technology
The control and removal of atmosphere pollution such as dust, sulfur dioxide and nitrogen oxides for routine etc. can not meet
People's requirement growing to atmosphere quality, ambient air quality especially caused by organic exhaust gas deteriorate into
For the new period relation people's livelihood and the important environmental problem of influence building harmonious society.Organic exhaust gas is mainly derived from municipal refuse
Manage communal facility such as solid refuse Treatment stations, sewage treatment plant and dung yard, in addition, various industrial and agricultural production processes
Various organic exhaust gas can be discharged.Existing physical absorption, advanced oxidation and biotechnology can have to a certain extent
Effect processing organic exhaust gas, but single technology all there is it is different the defects of, the sorbent used secondary place such as adsorption technology
Accessory substance is more in reason and secondary pollution, the energy resource consumption of high-level oxidation technology height and degradation process and biotechnology is by organic
Exhaust gas properties have a great influence.Compared with physical absorption and high-level oxidation technology, biotechnology is in processing hydrophily organic waste
There is the advantages of low energy resource consumption and high treating effect during gas, but for the treatment effeciency and effect of hydrophobicity organic exhaust gas
Still up for further being lifted, the gas residence time as required for biotechnology is long, and (the actual deodorization of industry usually requires that
Gas residence time is completed in 25s even shorter time), the efficiency of processing high concentration hydrophobic contaminant and ability compared with
The problems such as influence that is low and being easily contaminated thing fluctuation of concentration.In view of the characteristic majority of organic exhaust gas is hydrophobicity, therefore
A kind of cost-effective technical method is needed to improve the purification efficiency of hydrophobicity organic exhaust gas.
Dielectric barrier discharge is one kind of lower temperature plasma technology, is a kind of advanced oxidation skill that new development in recent years is got up
Art, it is considered to be most have one of organic waste-gas purification technology of application prospect.Lower temperature plasma technology has to substrate without choosing
Selecting property, the features such as technological process is simple, equipment is easy to operation, particularly in processing difficult for biological degradation and low concentration gaseous pollutant
Aspect has obvious advantage.Its principle is to utilize electrode caused high energy electron, OH, HO in discharge space2、·O
Living radical and oxidisability ozone etc., series of chemical occurs with contaminant molecule, so as to which target contaminant be divided
Solution.Existing single Low Temperature Plasma Treating waste gas technology lays particular emphasis on structure design and the optimization of reactor more.It is although single
The design of low-temperature plasma equipment is gradually improved, but existing energy profit during single corona treatment gaseous contaminant
With rate is relatively low, intermediate product degraded is not thorough and produces the defects of a large amount of ozonation by-products easily cause secondary pollution, turn into system
Lower temperature plasma technology about including dielectric barrier discharge is in the wide variety of bottleneck problem of field of environment pollution control.
The information for being disclosed in the background section is merely intended to increase the understanding to general background of the present utility model, and
It is not construed as recognizing or implies that the information structure has been existing well known to persons skilled in the art in any form
Technology.
Utility model content
The purpose of this utility model is to provide a kind of device for handling hydrophobicity organic exhaust gas, so as to overcome single creature
Residence time of technical finesse hydrophobicity organic exhaust gas long and less efficient deficiency, and the pair of Single Medium barrier discharge
The shortcomings that product is more and efficiency of energy utilization is relatively low.
To achieve the above object, the utility model provides a kind of device for handling hydrophobicity organic exhaust gas, including：Waste gas
Collecting mechanism, it is used to collect hydrophobicity organic exhaust gas；Waste gas heat exchange mechanism, itself and the gas sampling mechanism connection, use
In the temperature for reducing hydrophobicity organic exhaust gas；Waste gas dedusting mechanism, it is connected with the waste gas heat exchange mechanism, thin for removing
The dust of water-based organic exhaust gas；Dielectric barrier discharge reactor, it is provided with air inlet and gas outlet, and the air inlet gives up with described
Gas dedusting mechanism is connected, and gas distributed area is provided with the air inlet, and discharge catalytic is provided with close to the gas distributed area
Reaction zone, accessory substance catalytic decomposition area is provided with close to the discharge catalytic reaction zone, is set close to accessory substance catalytic decomposition area
There is plenum zone, the gas outlet is at the plenum zone；Power sector, it connects with the discharge catalytic reaction zone
Connect；And biofilm reactor, it is connected with the gas outlet in the dielectric barrier discharge reactor.
Preferably, in above-mentioned technical proposal, the gas distributed area is trapezoidal flaring mouth, and the air inlet is provided with narrow end
Mouthful, it is provided with air distribution plate at wide end.
Preferably, in above-mentioned technical proposal, the discharge catalytic reaction zone, it is placed with the discharge catalytic reaction zone and urges
Agent, the discharge catalytic reaction zone include：High-voltage discharging electrode, it is connected with the power sector, the electrion electricity
Pole and the inwall of the dielectric barrier discharge reactor are set in parallel；Block media, it is adjacent with the high-voltage discharging electrode
It is arranged in parallel；Earth terminal, its is parallel located at the lower section of the block media, is connected with the low-pressure end in power sector；And absolutely
Edge supporter, the insulation support body are used to the high-voltage discharging electrode, the block media and earth terminal being fixed on medium
On the inwall for stopping reactor.
Preferably, in above-mentioned technical proposal, the high-voltage discharging electrode is one kind in board-like or spool formula；The high pressure
The quantity of sparking electrode is 1-100；The block media is one kind in plate or pipe, and material is quartz or ceramics.
Preferably, in above-mentioned technical proposal, the catalyst is the TiO being supported on isolation material2, Mn oxide, iron
One or several kinds in oxide, magnesium oxide or lanthanum-oxides.
Preferably, in above-mentioned technical proposal, the side reaction catalytic reaction zone is provided with Carbon foam, and the Carbon foam is doping
There is the Carbon foam of one or more of catalyst in ferriferous oxide, Mn oxide, magnesium oxide or lanthanum-oxides, the amount of doping is bubble
The 2-20% of foam carbonaceous amount.
Preferably, in above-mentioned technical proposal, the biofilm reactor includes：Biofilm reactor main body, the biology
If membrane reactor body interior is divided into dried layer, it is anti-as biofilm carrier, the biomembrane to be filled with porous aggregate above every layer
The top of device main body is answered to be provided with water-locator and gas outlet, bottom is provided with liquid outlet and air inlet；And nutrient solution organization of supply, its
Including fluid reservoir and delivery pump, the inlet of the fluid reservoir is connected with the liquid outlet of the biofilm reactor main body, described
The liquid outlet of fluid reservoir is connected in delivery pump, and the output end of the delivery pump is connected with the water-locator.
Preferably, in above-mentioned technical proposal, the porous aggregate is, with shell, agricultural wastes or forestry waste
One or more be raw material, the multiporous biological charcoal being prepared after Pintsch process, the particle diameter of charcoal is in 4-10mm；
Preferably, in above-mentioned technical proposal, the nutrient solution organization of supply also includes nutrient solution meter and automatically controlled
System, the nutrient solution meter are located between the water-locator and the delivery pump, and the automatic control system is used to control
The amount and service time of nutrient solution supply.
Preferably, in above-mentioned technical proposal, the power sector includes power supply and connected electrical power control cabinet；Institute
State power supply be frequency be 50Hz-5kHz it is various have sine wave, impulse wave and square wave in one kind, range of regulation 1-
30kV。
Preferably, in above-mentioned technical proposal, the gas sampling mechanism is collecting hood；The waste gas heat exchange structure is folder
Shell type coil pipe heat exchanger forms；The dust pelletizing system includes deduster and blower fan, and dust collection is provided with below the deduster
Funnel, described blower fan one end are connected with the deduster, and the other end is connected with the air inlet of the dielectric barrier discharge reactor.
Compared with prior art, the utility model has the advantages that：
(1) device of processing hydrophobicity organic exhaust gas of the present utility model, using dielectric barrier discharge as preconditioning technique,
Preliminary exposition can be carried out to hydrophobicity organic exhaust gas, break the hydrophobicity of pollutant, biofilm reactor can be effectively increased
Handle the efficiency and effect of organic exhaust gas.
(2) catalyst is placed in dielectric barrier discharge reactor, on the one hand to make full use of caused purple in discharge process
Outer light excites catalyst degradation target contaminant, on the other hand forms active oxygen species using catalysis ozone, strengthens organic exhaust gas
Treatment effect and while energy efficiency, reduce the discharge capacity of accessory substance ozone.
(3) using multiporous biological Carbon Materials as load biomembrane carrier, contribute to capture waste gas in pollutant and
Promote the quick formation of microbial film.
Brief description of the drawings
Fig. 1 is the structural representation according to the device that hydrophobicity organic exhaust gas is handled in the technological process of production of the present utility model
Figure.
Fig. 2 is the knot of dielectric barrier discharge reactor in the device according to processing hydrophobicity organic exhaust gas of the present utility model
Structure schematic diagram.
Embodiment
Below in conjunction with the accompanying drawings, specific embodiment of the present utility model is described in detail, it is to be understood that this practicality
New protection domain is not limited by embodiment.
Explicitly indicated that unless otherwise other, otherwise in entire disclosure and claims, term " comprising " or its change
Change such as "comprising" or " including " etc. and will be understood to comprise stated element or part, and do not exclude other members
Part or other parts.
As shown in Figure 1 to Figure 2, according to a kind of dress of processing hydrophobicity organic exhaust gas of the utility model embodiment
Put, be collected the hydrophobicity organic exhaust gas of discharge by gas sampling mechanism.The gas sampling mechanism is gas skirt 1.Collection
Gas hood 1 is connected by pipeline with waste gas heat exchange mechanism 2.Waste gas heat exchange structure 2 forms for jacket type coil pipe heat exchanger.It is useless
Gas heat exchange structure 2 is provided with liquid-inlet 3 and liquid outlet 4.The gas temperature of waste gas is controlled by waste gas heat exchange mechanism 2
Below 30 DEG C.The gas come out from waste gas heat exchange structure 2 enters waste gas dedusting mechanism, is removed by waste gas dedusting mechanism useless
The impurity such as the particulate matter in gas.Waste gas dedusting mechanism includes deduster 5 and blower fan, and the lower section of deduster 5 is provided with dust collection funnel
6.Separated dust discharges after the collection of dust collection bucket 6.The one end of blower fan 7 is connected with the gas outlet of deduster 5, the other end with
The air inlet connection of the dielectric barrier discharge reactor 8.Dielectric barrier discharge reactor 8 is connected with power supply 9, power supply 9 and electricity
Source switch board 10 connects, wherein power supply 9 be frequency be 50Hz-5kHz it is various have sine wave, impulse wave and square wave in one
Kind, range of regulation 1-30kV.The hydrophobic property of hydrophobic contaminant is broken by dielectric barrier discharge reactor 8, simultaneously
Using the catalyst in dielectric barrier discharge system to the further resolution process of caused accessory substance in discharge process；By medium
The organic exhaust gas of barrier discharge system pretreatment finally enters biofilm reactor main body 11, in the presence of biomembrane, pollution
Thing is decomposed by final mineralising.
More specifically embodiment is, as shown in Figure 1 to Figure 2.Hydrophobicity waste gas after pretreatment conveys through blower fan 7
To dielectric barrier discharge reactor 8, dielectric barrier discharge reactor 8 is one kind in cube body structure or cylindrical structure,
Dielectric barrier discharge reactor 8 is provided with gas distributed area 802 from left to right, and gas distributed area 802 is trapezoidal flaring mouth, narrow end
Place is provided with the air inlet 801, and air distribution plate 803 is provided with wide end.Air inlet 801 is connected by pipeline with blower fan 7.Air distribution plate
803 are fixed on the inwall 804 of dielectric barrier discharge reactor.Gas distribution of the gas through gas distributed area 802 and air distribution plate 803
Effect, into the discharge catalytic reaction zone 808 equipped with catalyst.Be provided with discharge catalytic reaction zone 808 insulation support body 805,
High-voltage discharging electrode 806, block media 807 and earth terminal 810.
Insulation support body 805 is used to high-voltage discharging electrode 806, block media 807 and earth terminal 810 being fixed on medium resistance
Keep off on the inwall 804 of reactor.Catalyst is provided with discharge catalytic reaction zone 808.High pressure is provided with discharge catalytic reaction zone
Sparking electrode 806, the input of high-voltage discharging electrode 806 are connected with the high-voltage output end of power supply 9.In high-field electrode 806 and connect
Among ground terminal 810 block media is placed with close to high-field electrode 806.High-field electrode 806 and 810 interelectrode distance of earth terminal exist
3-10mm.High voltage power supply 9 is regulated and controled by switch board 10 to regulate and control to be carried in the high-field electrode in dielectric barrier discharge reactor 8
Voltage on 806.Pollutant in organic exhaust gas is caused each in discharge range 808 and in the discharge process of high-field electrode 806
Decomposed in the presence of kind active specy and catalyst, the product of generation passes through accessory substance catalytic domain 809 together with accessory substance ozone, secondary
For product in the presence of catalyst, the active specy for itself decomposing and generating strong oxidizing property continues to participate in the degraded of pollutant, from
And have the function that while purify waste gas and remove pollutant.
Through 8 pretreated waste gas of dielectric barrier discharge reactor, flowed out by gas outlet 811, through flow speed controller 13
Adjustment after, enter from the bottom air inlet of biofilm reactor main body 11.Biofilm reactor main body is cylindric or vertical
One kind in cube, one or several kinds of the ratio of height to diameter in 5-10, material PVC, acrylic and stainless steel metal material.It is raw
It is divided into some layers inside thing membrane reactor main body 11, every layer is filled with porous aggregate as biofilm carrier 14 above, i.e., biological
Packing layer, the top in biofilm reactor main body are provided with water-locator 12, and bottom is provided with liquid outlet.Gas is from biofilm reactor
After the bottom of main body 11 fully contacts after entering with the biofilm carrier on packing layer in biofilm reactor main body, after purification
Gas is discharged from the upper air vent of biofilm reactor main body.To ensure the activity of biomembrane in biofilm reactor main body,
Biofilm reactor main body is connected with nutrient solution organization of supply.
Nutrient solution organization of supply includes fluid reservoir 15, nutrient solution meter 16, delivery pump 17 and automatic control system, and (figure is not
Show).The inlet of fluid reservoir 15 is connected with the liquid outlet of biofilm reactor main body 11, and the liquid outlet of fluid reservoir 15 is in delivery pump
17 connections, the output end of delivery pump 17 are connected with water-locator 12.Nutrient solution meter 16 located at water-locator 12 and delivery pump 17 it
Between, automatic control system is used for amount and the service time for controlling nutrient solution to supply.Periodically pass through mineral nutrition liquid delivery pump
17 conveying effect, in fluid reservoir 15 mineral nutrition is uniformly sprayed on bio-carrier 14 through water-locator 12, ensures life
The demand of humidity and mineral nutrition element of the thing film in waste gas treatment process.
Preferably, the high-voltage discharging electrode is one kind in board-like or spool formula；Discharge catalytic area high-voltage discharging electrode
Installation number 1-100 can be installed according to the size and gas treating capacity of casing；The block media is in plate or pipe
One kind, material are quartz or ceramics.
Preferably, the catalyst is the TiO being supported on isolation material2, Mn oxide, ferriferous oxide, magnesium oxide
Or one kind in lanthanum-oxides.
Preferably, the side reaction catalytic reaction zone is provided with Carbon foam, and the Carbon foam is doped with ferriferous oxide, manganese oxygen
The Carbon foam of one or more of catalyst in compound, magnesium oxide or lanthanum-oxides, the amount of doping are the 2- of Carbon foam quality
20%.
Preferably, the porous aggregate is, using the one or more in shell, agricultural wastes or forestry waste as original
Material, the multiporous biological charcoal being prepared after Pintsch process, the particle diameter of charcoal is in 4-10 mm；
Hydrophobic gas is handled using the device of above-mentioned processing hydrophobicity organic exhaust gas.The processing hydrophobicity used
Under the specification of the device of organic exhaust gas enters：
Dielectric barrier discharge catalytic reactor hull shape is cuboid, size 500mm × 300mm × 300mm, material
For white PVC board.Two discharge ranges are internally provided with, wherein high-voltage discharging electrode one is respectively configured in each discharge range,
It is made up of the stainless steel plate that size is 100mm × 100mm × 2mm, electrode gap 8mm, the useful space of single electric discharge
For 80cm3；Dielectric used is 150mm × 150mm × 3mm quartz glass, and TiO is loaded with the side of quartz glass2
Film is as catalyst；The size of air distribution plate used is 300mm × 300mm, is provided with the circular hole that size is diameter 10mm above,
Material is white polytetrafluoroethylpipe；Accessory substance catalytic domain used catalyst is the Carbon foam prepared by raw material of Eucalyptus powder, is steeped
The metal Mn oxide of doping 15% is as catalyst in foam charcoal.The size of Carbon foam is 10mm × 10mm × 10mm, and fixed
It is that Carbon foam net is formed on 300mm × 300 mm × 50mm grid framves in size.Biofilm reactor is vertical cylinder, diameter
For 100mm, a height of 1000mm, inside is divided into 4 layers, and every layer is filled with the high pine nut shells of 100mm and walnut shell mixture (mass ratio
For 1:1) carrier as biomembrane.Using hydrophobic organic compound dimethylbenzene as target contaminant.Biomembrane can be with 40 days
Culture is completed, and biomass reaches 0.69g/g fillers, much larger than the 0.20g/g fillers of the ceramics filling of routine.When gas stops
Between be 62s under conditions of, to initial concentration 1500mg/m3Dimethylbenzene processing can realize permineralization.
The foregoing description to specific illustrative embodiment of the present utility model is to illustrate and the purpose of illustration.These
Description is not wishing to for the utility model to be defined to disclosed precise forms, and it will be apparent that according to above-mentioned teaching, can carry out
It is many to change and change.The purpose of selecting and describing the exemplary embodiment is that explain certain principles of the present utility model
And its practical application, so that those skilled in the art can realize and utilize a variety of examples of the present utility model
Property embodiment and various chooses and changes.The scope of the utility model is intended to by claims and its waits similar shape
Formula is limited.
Claims (8)
- A kind of 1. device for handling hydrophobicity organic exhaust gas, it is characterised in that including：Gas sampling mechanism, it is used to collect hydrophobicity organic exhaust gas；Waste gas heat exchange mechanism, itself and the gas sampling mechanism connection, for reducing the temperature of hydrophobicity organic exhaust gas；Waste gas dedusting mechanism, it is connected with the waste gas heat exchange mechanism, for removing the dust of hydrophobicity organic exhaust gas；Dielectric barrier discharge reactor, it is provided with air inlet and gas outlet, and the air inlet is connected with the waste gas dedusting mechanism, Gas distributed area is provided with the air inlet, discharge catalytic reaction zone is provided with close to the gas distributed area, close to described Discharge catalytic reaction zone is provided with accessory substance catalytic decomposition area, and plenum zone, institute are provided with close to accessory substance catalytic decomposition area Gas outlet is stated at the plenum zone；Power sector, it is connected with the discharge catalytic reaction zone；AndBiofilm reactor, it is connected with the gas outlet in the dielectric barrier discharge reactor.
- 2. the device of processing hydrophobicity organic exhaust gas according to claim 1, it is characterised in that the gas distributed area is Trapezoidal flaring mouth, the air inlet is provided with narrow end, air distribution plate is provided with wide end.
- 3. the device of processing hydrophobicity organic exhaust gas according to claim 1, it is characterised in that the discharge catalytic reaction Area, catalyst is placed with the discharge catalytic reaction zone, the discharge catalytic reaction zone includes：High-voltage discharging electrode, it is connected with the power sector, and the high-voltage discharging electrode reacts with the dielectric barrier discharge The inwall of device is set in parallel；Block media, itself and the adjacent, parallel setting of the high-voltage discharging electrode；Earth terminal, its is parallel located at the lower section of the block media, is connected with the low-pressure end in power sector；AndInsulation support body, the insulation support body are used to fix the high-voltage discharging electrode, the block media and earth terminal In on the inwall of dielectric impedance reactor.
- 4. the device of processing hydrophobicity organic exhaust gas according to claim 3, it is characterised in that the high-voltage discharging electrode For one kind in board-like or spool formula；The quantity of the high-voltage discharging electrode is 1-100；The block media is in plate or pipe One kind, material for quartz or ceramics.
- 5. the device of processing hydrophobicity organic exhaust gas according to claim 1, it is characterised in that the biofilm reactor Including：Biofilm reactor main body, if the biofilm reactor body interior is divided into dried layer, every layer is filled with porous fill out above Material is used as biofilm carrier, and the top of the biofilm reactor main body is provided with water-locator, and bottom is provided with liquid outlet, the biology Membrane reactor lower body part is provided with air inlet, and top is provided with gas outlet；AndNutrient solution organization of supply, it includes fluid reservoir and delivery pump, the inlet of the fluid reservoir and the biofilm reactor The liquid outlet connection of main body, the liquid outlet of the fluid reservoir connect in delivery pump, the output end of the delivery pump and the water distribution Device connects.
- 6. the device of processing hydrophobicity organic exhaust gas according to claim 5, it is characterised in that the nutrient solution supplies machine Structure also includes nutrient solution meter and automatic control system, and the nutrient solution meter is located at the water-locator and the delivery pump Between, the automatic control system is used for amount and the service time for controlling nutrient solution to supply.
- 7. the device of processing hydrophobicity organic exhaust gas according to claim 1, it is characterised in that the power sector includes Power supply and connected electrical power control cabinet；The power supply is that frequency is that the various of 50Hz-5kHz have sine wave, impulse wave With one kind in square wave, range of regulation 1-30kV.
- 8. the device of processing hydrophobicity organic exhaust gas according to claim 1, it is characterised in that the gas sampling mechanism For collecting hood；The waste gas heat exchange structure forms for jacket type coil pipe heat exchanger；The dust pelletizing system include deduster and Blower fan, be provided with dust collection funnel below the deduster, described blower fan one end is connected with the deduster, the other end with it is described The air inlet connection of dielectric barrier discharge reactor.
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| CN201621167701.5U CN206730855U (en) | 2016-11-02 | 2016-11-02 | A kind of device for handling hydrophobicity organic exhaust gas |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621167701.5U CN206730855U (en) | 2016-11-02 | 2016-11-02 | A kind of device for handling hydrophobicity organic exhaust gas |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106582260A (en) * | 2016-11-02 | 2017-04-26 | 广西大学 | Apparatus for purifying hydrophobic organic waste gas and purifying method therefor |
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2016
- 2016-11-02 CN CN201621167701.5U patent/CN206730855U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106582260A (en) * | 2016-11-02 | 2017-04-26 | 广西大学 | Apparatus for purifying hydrophobic organic waste gas and purifying method therefor |
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