CN108479341A - A kind of plasma body cooperative iron-carbon micro-electrolysis handles the device of organic flue gas - Google Patents

A kind of plasma body cooperative iron-carbon micro-electrolysis handles the device of organic flue gas Download PDF

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Publication number
CN108479341A
CN108479341A CN201810569662.9A CN201810569662A CN108479341A CN 108479341 A CN108479341 A CN 108479341A CN 201810569662 A CN201810569662 A CN 201810569662A CN 108479341 A CN108479341 A CN 108479341A
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iron
prickle
absorption tower
plasma
flue gas
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杨颖欣
胡小吐
刘勇
钟璐
薛学良
胡静龄
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Guangdong Jiade Environmental Protection Technology Co Ltd
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Guangdong Jiade Environmental Protection Technology Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/75Multi-step processes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/38Removing components of undefined structure
    • B01D53/44Organic components
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2257/00Components to be removed
    • B01D2257/70Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
    • B01D2257/708Volatile organic compounds V.O.C.'s
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2258/00Sources of waste gases
    • B01D2258/02Other waste gases
    • B01D2258/0283Flue gases
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2259/00Type of treatment
    • B01D2259/80Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
    • B01D2259/818Employing electrical discharges or the generation of a plasma

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Treating Waste Gases (AREA)

Abstract

The present invention is the device that a kind of plasma body cooperative iron-carbon micro-electrolysis handles organic flue gas, plasma generator including interconnection and absorption tower, the plasma generator is connect with smoke inlet, it is connect with exhanst gas outlet at the top of the absorption tower, iron carbon filler layer, spraying layer, demister, active carbon filter are disposed with inside the absorption tower from bottom to top, the absorption tower lower sides are connect with slurry circulating pump, and the slurry circulating pump is connect with the spraying layer.Using plasma collaboration iron-carbon micro-electrolysis of the present invention purifies organic flue gas, and pulsed high voltage generator, iron carbon filler loading is adjustable, and technique is applied widely, and adaptability for working condition is strong;And tail gas carries out after-treatment after being purified to corona discharge pulse plasma body cooperative iron-carbon micro-electrolysis by spraying layer and active carbon filter, equipment investment and operating cost are low, and purification efficiency is up to 95% or more, and non-secondary pollution.

Description

A kind of plasma body cooperative iron-carbon micro-electrolysis handles the device of organic flue gas
Technical field
The present invention relates to organic flue gas Treatment process fields, and in particular to a kind of plasma body cooperative iron-carbon micro-electrolysis processing The device of organic flue gas.
Background technology
Organic flue gas (VOCs) Treatment process can be divided into two classes:When recovery technology, by changing certain technical process The physical conditions such as temperature, pressure make VOCs enrichment and separations, are preferentially recycled, for taking into one for no utility value Harmless treatment is walked, mainly there is condensation method, absorption method, absorption process and membrane separation process etc.;Second is that the technology of destruction, passes through chemistry or life Change reaction, with heat, light, catalyst and microorganism by organic matter be transformed into the nonhazardous such as carbon dioxide and water or low toxicity do harm to it is small Molecular compound, VOCs processing mainly have combustion method, lower temperature plasma technology, Photocatalyst and biology Technology etc..Wherein, high energy electron caused by low temperature plasma, free radical isoreactivity particle can act on having in flue gas Machine pollutant makes contaminant molecule decompose within the extremely short time, and it is dirty to reach degradation that subsequent various reactions occur The purpose for contaminating object, it is efficient to handle organic flue gas, has obtained a lot of research and application.
CN107441885A discloses a kind of device and method of the organic flue gas of plasma body cooperative catalytic treatment, including sequentially Absorption tower, plasma reactor and the catalytic reactor of connection;Wherein, controlled threeway is provided at the air inlet of absorption tower Valve;The controlled triple valve makes smoke inlet that the bypass on smoke inlet and absorption tower is connected to or made with absorption tower air inlet respectively Connection;Controlled triple valve is provided at the air inlet of plasma reactor;The controlled triple valve makes absorption tower respectively Gas outlet is connected to plasma reactor air inlet or makes the bypass of absorption tower gas outlet and plasma reactor;Also Including a gas analysis instrument, smoke inlet is provided with test point, the gas analysis instrument is real-time by test point Flue gas is detected, and exports control signal according to testing result to each controlled triple valve, to control its switching.The technical solution is main Solves the problems such as organic by-products are easily deposited on the electrode surface of plasma reactor and influence discharge performance, for organic The processing of flue gas is not efficient enough.
CN107042039A discloses a kind of dielectric barrier discharge low-temperature plasma concerted catalysis and handles organic flue gas Device and processing method, including agent set and low temperature plasma generating means;The agent set is from the bottom to top successively It is divided into filtering bed, reaction chamber and adsoption catalysis bed, the low temperature plasma generating means to be located at outside reaction chamber, with institute State reaction chamber seamless connection.The technical solution mainly detaches low temperature plasma generating means with flue gas, solves and avoids directly The problems such as contact causes the corrosion of electric discharge device, however, the processing of organic flue gas is only uniquely relied on low temperature plasma Oxidation and catalysis oxidation are effectively combined, it is difficult to handle the organic flue gas combination of industrial complexity, also lack after absorbing into one Step processing, treatment effect are also not prominent enough.
To sum up, the prior art still lack it is a kind of using plasma body cooperative catalysis, can efficient process it is a variety of in the case of Organic flue gas processing device.
Invention content
Purpose of the present invention is in view of the defects existing in the prior art, provide kind of a corona discharge pulse plasma body cooperative iron Carbon micro-electrolysis purifies organic flue gas, and by spraying layer and active carbon filter to corona discharge pulse plasma body cooperative iron carbon Tail gas carries out after-treatment after light electrolysis purification, and treatment effeciency is high.Technical solution of the present invention is as follows.
A kind of plasma body cooperative iron-carbon micro-electrolysis handles the device of organic flue gas, includes the plasma hair of interconnection Raw device and absorption tower, the plasma generator are provided with smoke inlet, are provided with exhanst gas outlet at the top of the absorption tower, institute It states and is disposed with iron carbon filler layer, spraying layer, demister, active carbon filter, the absorption inside absorption tower from bottom to top Tower lower sides are connect with slurry circulating pump, and the slurry circulating pump is connect with the spraying layer.
Pending organic flue gas enters plasma generator by smoke inlet, enters after corona treatment Absorption tower is passed through the processing such as iron carbon filler layer, spraying layer, demister, active carbon filter inside absorption tower, has been handled successively Flue gas be discharged by exhanst gas outlet, slurry circulating pump 10 from bottom of tower conveying slurries sprayed to spraying layer 6.
Plasma generator generates a large amount of high energy electrons, positive and negative particle, excited state particle by corona discharge pulse, With and the extremely strong O of oxidisability3With living radical (OH, O etc.), after organic flue gas is passed through plasma generator, these Active particle is combined with the organic pollutant molecule collision in flue gas, on the one hand can make some organic pollutants molecular scission, Directly it is decomposed into CO2、H20 equal innocuous gas molecule, makes flue gas obtain preliminary purification;Electronics in another aspect plasma Organic pollutant molecule surface is adhered to be allowed to charged, is conducive to it and enters after iron-carbon micro-electrolysis reaction tower by iron carbon filler Absorption is decomposed.The present invention selects corona discharge, and corona discharge can work under normal pressure, and device design is simple, electrode and power supply at This relative moderate;And the impulse electric corona that superiority is had more compared with DC corona is selected, it is narrow by the high-pressure stage of pulsed high voltage generator Pulse power supply mode, obtain nonequilibrium plasma, due to its it is charged it is efficient, Implantation Energy is big, can be formed and compare direct current It swoons more, stronger high energy electron, so that the quantity of free radical and active particle and energy efficiency is had raising by a relatively large margin, and not Easily play electric spark.
The difference in Electrode Potential of iron and carbon can form countless small primary batteries in the solution in iron carbon filler layer, in light electrolysis mistake High active substance is generated in journey.When the charged organic pollution of dispersion in the solution is filled out by the iron carbon being immersed in tower in solution It when the bed of material, can be adsorbed on filler, and series of oxidation reduction reaction occurs with these high active substances, be broken down into CO2、H2O Deng to realize purification purpose.Therefore, the present invention is acted synergistically by plasma and iron-carbon micro-electrolysis, can high efficiency processing Some Organic Pollutants, and pulsed high voltage generator, iron carbon filler loading is adjustable, technique is applied widely, and adaptability for working condition is strong.
It is provided with one or two layers spraying layer above iron carbon filler layer, several nozzles are provided on the spray tube of spraying layer, Slurry circulating pump is sprayed from bottom of tower conveying slurries to spraying layer, and the pH of sprayed slurry is 2-6, allows still undegradable organic dirt Dye object comes back to lower layer's iron carbon filler layer purification, improves whole purification efficiency.Demister is provided with above spraying layer, favorably Water mist in tail gas adheres to form bulky grain droplet drippage, to reduce the water mist content in tail gas.Setting above demister Active carbon filter, the tail gas after dehumidifying enter in active carbon filter, are further purified to tail gas, to ensure row up to standard It puts.Finally, it is discharged in air outside by the tail gas of adsorption cleaning.Therefore, the present invention passes through spraying layer, demister and activated carbon mistake Filter carries out after-treatment to flue gas, is further processed first, untreated organic matter can be allowed to return to bottom of tower, second is that energy Enough advanced treating residual organic contaminants, can purifying smoke to the maximum extent, treatment effeciency is high, and environment protecting is good.
Preferably, being provided with microbubble generator, the plasma below the absorb the bottom of the tower, iron carbon filler layer Booster fan is provided between generator and absorption tower, the booster fan is connect with the microbubble generator.Increasing outside tower The flue gas handled through plasma generator is delivered to microbubble generator by pressure fan, and the organic pollution in flue gas is through microvesicle Generating means becomes microvesicle, evenly spreads in the solution in tower, makes reacting more fully, more for organic pollution and iron carbon filler Efficiently.Microbubble generator brings flue gas larger resistance, it is therefore desirable to which booster fan pressurizes, and microvesicle is allowed to generate more It is easy and abundant.
Preferably, the microbubble generator includes several gas distribution pipes be responsible for and be connected to supervisor, the gas distribution Pipe is evenly arranged along supervisor's length direction, and the tube wall of the gas distribution pipe is provided with several micropores, the aperture of the micropore It is 0.1-2000 μm.The microbubble generator can generate microvesicle in all directions of bottom of tower, and flue gas can be allowed more uniform It is distributed in the solution in tower.
Preferably, the plasma generator includes shell and housing inlet port, the housing outlets at shell both ends is arranged, Inside the plasma generator even spiracular plate, electric field region, insulator and plant-grid connection are disposed with along smoke movement direction Device, the electric field region include several tubular dielectric materials, the moon positioned at tubular dielectric material center being evenly arranged Pole, the anode being tightly placed in outside tubular dielectric material, the cathode are electrically connected with the plant-grid connection device, and the anode connects Ground.
Preferably, the tubular dielectric material can be one kind in quartz glass, ceramics, the cathode is prickle electricity Pole, the arista electrode adjacent spacing are 10-50mm, and electrode length 15-30mm, the arista electrode is column prickle, three Angular prickle, angle steel prickle, waveform prickle, tubulose prickle, band steel prickle, angle steel prickle, zigzag prickle, strip prickle and fish It is one or more in bone prickle.
Preferably, the plant-grid connection device is electrically connected with pulsed high voltage generator;The pulsed high voltage generator is direct current Base voltage source, it is 40-80kV that base, which presses voltage range, and preferably 60KV, base current voltage range is 200-2000mA, pulse voltage width Degree is 60-120KV, preferably 80kV, pulse width 70-100uS, pulse recurrence frequency 0-200Hz.Pass through high voltage pulse The high pressure ultra-narrow pulse power supply mode of power supply, obtain nonequilibrium plasma, due to its it is charged it is efficient, Implantation Energy is big, energy It is enough to form high energy electrons more than DC corona, stronger, so that the quantity of free radical and active particle and energy efficiency is had larger The raising of amplitude, and it has been not easy electric spark.
Preferably, further including reclamation set, the reclamation set is connect with the slurry circulating pump.The present invention handles cigarette In gas when organic matter, the Fe of generation during iron-carbon micro-electrolysis2+The solid suspensions such as ion flocculation, can gradually be accumulated in absorption tower Bottom section, it is preferred that can inclined tube (plate) sedimentation basin, the settlers such as vertical sedimentation basin be set in bottom of tower, solid is hanged Float preferably precipitates and bottom of tower, is then periodically pumped into solid suspension in reclamation set by slurry circulating pump, consolidate Liquid detaches, slurries be purified after be back in tower again, recycle water resource, reduce discharge of wastewater, and suspended matter into The processing of one step, resource circulation utilization.
Preferably, the iron carbon filler layer is regular iron carbon filler, the regular iron carbon filler proportion is 800- 1200kg/m3, for porosity not less than 65%, specific surface area is not less than 1.2m2/ g, physical strength are not less than 1000kg/cm2, iron carbon Mass ratio is 4-6:1.Regularization filler be by the standardized iron of grain size, carbon, metal or non-metallic catalyst, activator etc., It is uniformly sintered and is formed after mixing and compression moulding by a certain percentage, spherical shape, ellipse, cylinder etc. can be selected in iron carbon filler Shape.The present invention selects regular iron carbon filler, and without assembling, loading is few, and is avoided that conventional iron carbon filler is answered in industry The passivation, hardened and replace the problems such as difficult in the presence of provides the current density of bigger and better for iron-carbon micro-electrolysis reaction Micro-electrolysis reaction effect, reaction rate is fast, and purification efficiency is high, and longtime running is stablized effective.
Preferably, load has catalyst, the catalyst and the iron carbon content on the regular iron carbon filler Weight ratio is 2-8:92-98, the catalyst are one or more in titanium, manganese, cobalt, cerium metal oxide catalyst.
Preferably, the demister is one or more combinations in baffling vane type, tubular type, screen type, it is described Polypropylene or FRP can be selected in the material of demister.FRP, Fiber Reinforced Polymer/Plastic, are fiber reinforcements Composite material is the high-performance proximate matter material formed after being mixed according to a certain percentage with basis material (resin) by fibrous material.Matter Light and hard, non-conductive, high mechanical strength recycles less, corrosion-resistant.
Beneficial effects of the present invention have:
(1) corona discharge pulse plasma body cooperative iron-carbon micro-electrolysis is used to purify organic flue gas, produced by plasma Active particle, iron-carbon micro-electrolysis generate high active substance can handle Some Organic Pollutants, and pulsed high voltage generator, iron Carbon filler loading is adjustable, and technique is applied widely, and adaptability for working condition is strong;
(2) plasma device selects pulsed high voltage generator, passes through the high pressure ultra-narrow pulse supplier of electricity of pulsed high voltage generator Formula obtains nonequilibrium plasma, and charged efficient, Implantation Energy is big, can greatly improve generated free radical and activity The quantity and energy efficiency of particle;
(3) rationally organic flue gas is pre-processed using plasma device, while so that flue gas is obtained preliminary purification, Keep organic pollutant molecule charged, it is promoted to adsorb, decompose on iron carbon filler;
(4) organic pollution in flue gas is dispersed in tower in solution by microvesicle reaction unit, makes itself and iron The reaction of carbon filler is more abundant, more efficient;
(5) regular iron carbon filler is used, without assembling, loading is few, and service life is long, regular without needing to change, only needing Supplement runs and easy to maintain and at low cost, is avoided that conventional iron carbon filler is passivated in the presence of commercial Application, is hardened and stifled The problems such as plug, provides the current density of bigger and better micro-electrolysis reaction effect for iron-carbon micro-electrolysis reaction, and reaction rate is fast, Purification efficiency is high;
(6) after being purified to corona discharge pulse plasma body cooperative iron-carbon micro-electrolysis by spraying layer and active carbon filter Tail gas carries out two degree of processing of checking on, and can effectively prevent gas discharge not up to standard, it is ensured that meet increasingly stringent discharge standard;Pass through Circulation solution treatment for reuse device periodically carries out cleansing and recycling to circulation solution, recycles water resource, effectively reduces waste water row It puts;
(7) present invention process flow is simple, applied widely, and equipment investment and operating cost are low, and purification efficiency is up to 95% More than, and non-secondary pollution.
Description of the drawings
Fig. 1 present apparatus Structure and Process schematic diagrams;
Fig. 2 microbubble generator structural representations;
Fig. 3 plasma generator structure schematic diagrames.
Reference numeral:Smoke inlet 1, plasma generator 2, booster fan 3, microbubble generator 4, supervisor 41, gas distribution Pipe 42, micropore 43, microvesicle 44, iron carbon filler layer 5, spraying layer 6, demister 7, active carbon filter 8, exhanst gas outlet 9, slurries follow Ring pump 10, reclamation set 11,
Specific implementation mode
The specific implementation mode of the present invention is described further below in conjunction with the accompanying drawings:
A kind of plasma body cooperative iron-carbon micro-electrolysis handles the device of organic flue gas, as shown in Figure 1, including interconnection Plasma generator 2 and absorption tower, the plasma generator 2 are provided with smoke inlet 1, are arranged at the top of the absorption tower There is exhanst gas outlet 9, is disposed with iron carbon filler layer 5, spraying layer 6, demister 7, activity inside the absorption tower from bottom to top Carbon filter 8, the absorption tower lower sides are connect with slurry circulating pump 10, the slurry circulating pump 10 and the spraying layer 6 Connection.Pending organic flue gas enters plasma generator 2 by smoke inlet 1, enters after corona treatment The processing such as iron carbon filler layer 5, spraying layer 6, demister 7, active carbon filter 8, place are passed through in absorption tower successively inside absorption tower The flue gas managed is discharged by exhanst gas outlet 9, and slurry circulating pump 10 is sprayed from bottom of tower conveying slurries to spraying layer 6.
Plasma generator 2 generates a large amount of high energy electrons, positive and negative particle, excited state particle by corona discharge pulse, With and the extremely strong O of oxidisability3With living radical (OH, O etc.), after organic flue gas is passed through plasma generator 2, these Active particle is combined with the organic pollutant molecule collision in flue gas, on the one hand can make some organic pollutants molecular scission, Directly it is decomposed into CO2、H20 equal innocuous gas molecule, makes flue gas obtain preliminary purification;Electronics in another aspect plasma Organic pollutant molecule surface is adhered to be allowed to charged, is conducive to it and enters after iron-carbon micro-electrolysis reaction tower by iron carbon filler Absorption is decomposed.The difference in Electrode Potential of iron and carbon can form countless small primary batteries in the solution in iron carbon filler layer 5, in micro- electricity High active substance is generated in solution preocess.When dispersion charged organic pollution in the solution passes through the iron that is immersed in tower in solution It when carbon filler layer 5, can be adsorbed on filler, and series of oxidation reduction reaction occurs with these high active substances, be broken down into CO2、H2O etc., to realize purification purpose.Therefore, the present invention is acted synergistically by plasma and iron-carbon micro-electrolysis, can be efficient Rate handles Some Organic Pollutants, and pulsed high voltage generator, iron carbon filler loading is adjustable, and technique is applied widely, and operating mode is suitable Ying Xingqiang.
3 top of iron carbon filler layer is provided with one or two layers spraying layer 6, and several sprays are provided on the spray tube of spraying layer 6 Mouth, slurry circulating pump 10 are sprayed from bottom of tower conveying slurries to spraying layer 6, and the pH of sprayed slurry is 2-6, is allowed still undegradable Organic pollution comes back to the purification of lower layer's iron carbon filler layer 5, improves whole purification efficiency.The top of spraying layer 6, which is provided with, removes Day with fog 7 is conducive to the water mist in tail gas and adheres to form bulky grain droplet drippage, to reduce the water mist content in tail gas.Demisting 7 top of device is provided with active carbon filter 8, and the tail gas after dehumidifying enters in active carbon filter 8, further net to tail gas Change, to ensure qualified discharge.Finally, it is discharged in air outside by the tail gas of adsorption cleaning.Therefore, the present invention by spraying layer, Demister and active carbon filter carry out after-treatment to flue gas, when can allow it is untreated have an opportunity to return bottom of tower obtain into The processing of one step, second is that can advanced treating residual organic contaminants, can purifying smoke to the maximum extent, treatment effeciency is high, ring It is good to protect effect.
As preferred embodiment, the absorb the bottom of the tower, 5 lower section of iron carbon filler layer are provided with microbubble generator 4, institute It states and is provided with booster fan 3 between plasma generator 2 and absorption tower, the booster fan 3 and the microbubble generator 4 Connection.The flue gas handled through plasma generator 2 is delivered to microbubble generator 4 by booster fan 3 outside tower, in flue gas Organic pollution becomes microvesicle through microbubble generator 5, evenly spreads in the solution in tower, and organic pollution is made to be filled out with iron carbon The reaction of material is more abundant, more efficient.Microbubble generator 4 brings flue gas larger resistance, it is therefore desirable to which booster fan 3 adds Pressure allows what microvesicle generated to be more prone to and fully.
As preferred embodiment, the microbubble generator 4 includes several cloth be responsible for 41 and be connected to supervisor 41 Tracheae 42, the gas distribution pipe 42 are evenly arranged along 41 length directions of the supervisor, and the tube wall of the gas distribution pipe 42 is provided with several The aperture of a micropore 43, the micropore 43 is 0.1-2000 μm.The microbubble generator 4 can be produced in all directions of bottom of tower Raw microvesicle 44 can allow in the solution that flue gas more evenly spreads in tower.
As preferred embodiment, the plasma generator 2 includes that shell 21 and the shell being arranged at shell both ends enter Mouthfuls 22, housing outlets 23 are disposed with even spiracular plate 24, electric field inside the plasma generator 2 along smoke movement direction Area, insulator 28 and plant-grid connection device 29, the electric field region include several tubular dielectric materials 25 being evenly arranged, are located at The cathode 27 of 25 center of tubular dielectric material, the anode 26 being tightly placed in outside tubular dielectric material 25, the cathode 27 with The plant-grid connection device 29 is electrically connected, and the anode 26 is grounded.
As preferred embodiment, the tubular dielectric material 25 can be one kind in quartz glass, ceramics, described the moon Pole 27 is arista electrode, and the arista electrode adjacent spacing is 10-50mm, electrode length 15-30mm, and the arista electrode is Column prickle, triangle prickle, angle steel prickle, waveform prickle, tubulose prickle, band steel prickle, angle steel prickle, zigzag prickle, It is one or more in strip prickle and fish-bone prickle.
As preferred embodiment, the plant-grid connection device 29 is electrically connected with pulsed high voltage generator 210;The pulse is high Voltage source 210 is DC base voltage power supply, and it is 40-80kV that base, which presses voltage range, and preferably 60KV, base current voltage range is 200- 2000mA, pulse voltage amplitude 60-120KV, preferably 80kV, pulse width 70-100uS, pulse recurrence frequency 0- 200Hz.By the high pressure ultra-narrow pulse power supply mode of pulsed high voltage generator, nonequilibrium plasma is obtained, due to its charged effect Rate is high, Implantation Energy is big, can form more than DC corona, stronger high energy electron, make the number of free radical and active particle Amount and energy efficiency have raising by a relatively large margin, and have been not easy electric spark.
Further include reclamation set 11 as preferred embodiment, the reclamation set 11 connects with the slurry circulating pump 10 It connects.When the present invention handles organic matter in flue gas, the Fe of generation during iron-carbon micro-electrolysis2+The solid suspensions such as ion flocculation, meeting Gradually it is extruded in the bottom section on absorption tower, it is preferable that it is heavy can inclined tube (plate) sedimentation basin, vertical sedimentation basin etc. to be set in bottom of tower Shallow lake device, solid suspension is preferably precipitated and bottom of tower, is then periodically pumped into solid suspension by slurry circulating pump 10 In reclamation set 11, be separated by solid-liquid separation, slurries be purified after be back in tower again, recycle water resource, reduce Discharge of wastewater, and suspended matter is further processed, resource circulation utilization.
As preferred embodiment, the iron carbon filler layer 3 is regular iron carbon filler, the regular iron carbon filler ratio Weight is 800-1200kg/m3, and porosity is not less than 65%, and specific surface area is not less than 1.2m2/ g, physical strength are not less than 1000kg/cm2, iron carbon mass ratio is 4-6:1.Regularization filler is by the standardized iron of grain size, carbon, metal or nonmetallic to urge Agent, activator etc. are uniformly sintered and are formed after mixing and compression moulding by a certain percentage, the optional spherical shape of iron carbon filler, The shapes such as ellipse, cylinder.The present invention selects regular iron carbon filler, and without assembling, loading is few, and is avoided that conventional iron The problems such as carbon filler is passivated in the presence of commercial Application, hardened and replacement is difficult, the electricity of bigger is provided for iron-carbon micro-electrolysis reaction Current density and better micro-electrolysis reaction effect, reaction rate is fast, and purification efficiency is high, and longtime running is stablized effective.
Being loaded as preferred embodiment, on the regular iron carbon filler has catalyst, the catalyst and the iron The weight ratio of carbon content is 2-8:92-98, the catalyst are titanium, manganese, cobalt, one kind in cerium metal oxide catalyst or more Kind.
As preferred embodiment, the demister 7 is one or more in baffling vane type, tubular type, screen type Polypropylene or FRP can be selected in the material of combination, the demister 7.FRP is fibre reinforced composites, be by fibrous material with The high-performance proximate matter material that basis material (resin) is formed after mixing according to a certain percentage.It is light and hard, non-conductive, mechanical strength Height recycles less, corrosion-resistant.
Application Example:
Using the organic flue gas of system actual treatment industry of the present invention, to the clean-up effect such as following table institute of organic pollution Show.
Performance indicator Application Example 1 Application Example 2 Application Example 3
Exhaust gas volumn/(Nm3/h) 15000 30000 50000
Entrance VOCs concentration/(mg/Nm3) 1510 1420 1228
Export VOCs concentration/(mg/Nm3) 35.2 43.6 56.0
Purification efficiency/(%) 97.67 96.93 95.44
It follows that the present invention can be more than 95% to the efficient advanced treatings of VOC, purification efficiency, have extraordinary net Change effect.
According to the disclosure and teachings of the above specification, those skilled in the art in the invention can also be to above-mentioned embodiment party Formula is changed and is changed.Therefore, the invention is not limited in specific implementation modes disclosed and described above, to the one of invention A little modifications and changes should also be as falling into the scope of the claims of the present invention.In addition, although being used in this specification Some specific terms, these terms are merely for convenience of description, does not limit the present invention in any way.

Claims (10)

1. a kind of plasma body cooperative iron-carbon micro-electrolysis handles the device of organic flue gas, which is characterized in that including interconnection Plasma generator and absorption tower, the plasma generator are provided with smoke inlet, are provided at the top of the absorption tower Exhanst gas outlet is disposed with iron carbon filler layer, spraying layer, demister, activated carbon filtering inside the absorption tower from bottom to top Device, the absorption tower lower sides are connect with slurry circulating pump, and the slurry circulating pump is connect with the spraying layer.
2. a kind of device as described in claim 1, which is characterized in that setting below the absorb the bottom of the tower, iron carbon filler layer There is microbubble generator, booster fan, the booster fan and institute are provided between the plasma generator and absorption tower State microbubble generator connection.
3. a kind of device as claimed in claim 2, which is characterized in that the microbubble generator includes supervisor and connects with supervisor Several logical gas distribution pipes, the gas distribution pipe are evenly arranged along supervisor's length direction, and the tube wall of the gas distribution pipe is provided with Several micropores.
4. a kind of device as claimed in claim 2 or claim 3, which is characterized in that the plasma generator includes shell and setting Housing inlet port, housing outlets at shell both ends are disposed with inside the plasma generator even along smoke movement direction Spiracular plate, electric field region, insulator and plant-grid connection device, the electric field region include several tubular medium materials being evenly arranged Material, the cathode positioned at tubular dielectric material center, the anode that is tightly placed in outside tubular dielectric material, the cathode with it is described Plant-grid connection device is electrically connected, the plus earth.
5. a kind of device as claimed in claim 4, which is characterized in that the tubular dielectric material is in quartz glass, ceramics One kind, the cathode be arista electrode, the arista electrode adjacent spacing be 10-50mm, electrode length 15-30mm;Institute State arista electrode be column prickle, triangle prickle, angle steel prickle, waveform prickle, tubulose prickle, band steel prickle, angle steel prickle, It is one or more in zigzag prickle, strip prickle and fish-bone prickle.
6. a kind of device as claimed in claim 4, which is characterized in that the plant-grid connection device is electrically connected with pulsed high voltage generator It connects;The pulsed high voltage generator is DC base voltage power supply, and it is 40-80kV that base, which presses voltage range, and base current voltage range is 200- 2000mA, pulse voltage amplitude 60-120KV, pulse width 70-100uS, pulse recurrence frequency 0-200Hz.
7. a kind of device as claimed in claim 4, which is characterized in that further include reclamation set, the reclamation set with it is described Slurry circulating pump connects.
8. a kind of device as described in claims 1 or 2 or 3 or 7, which is characterized in that the iron carbon filler layer is regular iron Carbon filler, the regular iron carbon filler proportion are 800-1200kg/m3, not less than 65%, specific surface area is not less than porosity 1.2m2/ g, physical strength are not less than 1000kg/cm2, iron carbon mass ratio is 4-6:1.
9. a kind of device as claimed in claim 8, which is characterized in that load has catalyst on the regular iron carbon filler, The weight ratio of the catalyst and the iron carbon content is 2-8:92-98, the catalyst are titanium, manganese, cobalt, cerium metal oxide It is one or more in catalyst.
10. a kind of device as described in claims 1 or 2 or 3 or 7, which is characterized in that the demister be baffling vane type, The material of one or more combinations in tubular type, screen type, the demister is polypropylene or FRP.
CN201810569662.9A 2018-06-05 2018-06-05 A kind of plasma body cooperative iron-carbon micro-electrolysis handles the device of organic flue gas Pending CN108479341A (en)

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CN109157952A (en) * 2018-10-22 2019-01-08 广西博世科环保科技股份有限公司 Integrated kitchen fumes purification device
CN112915739A (en) * 2021-01-25 2021-06-08 中山大学 Heterogeneous catalytic oxidation processing system of organic waste gas and foul smell waste gas

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CN107261822A (en) * 2017-06-30 2017-10-20 迪天环境技术南京股份有限公司 It is a kind of can double purification and self-loopa handle VOCs equipment and process
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CN103706368A (en) * 2013-12-24 2014-04-09 齐鲁工业大学 Iron-carbon catalytic filler for treating organic mixed exhaust gases and preparation method of filler
CN106268169A (en) * 2015-06-01 2017-01-04 杭州中兵环保股份有限公司 The apparatus and method of the collaborative light electrolysis cleaning organic waste gas of plasma cracking oxidation
CN105517310A (en) * 2015-12-31 2016-04-20 浙江大维高新技术股份有限公司 VOC processing device
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