CN107511051A - Vertical exhaust treatment system based on dynamic interception and micro-nano bubbler techniques - Google Patents
Vertical exhaust treatment system based on dynamic interception and micro-nano bubbler techniques Download PDFInfo
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- CN107511051A CN107511051A CN201710954243.2A CN201710954243A CN107511051A CN 107511051 A CN107511051 A CN 107511051A CN 201710954243 A CN201710954243 A CN 201710954243A CN 107511051 A CN107511051 A CN 107511051A
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- 238000000034 method Methods 0.000 title claims abstract description 42
- 239000002912 waste gas Substances 0.000 claims abstract description 134
- 239000012855 volatile organic compound Substances 0.000 claims abstract description 84
- 238000000746 purification Methods 0.000 claims abstract description 79
- 239000007788 liquid Substances 0.000 claims abstract description 72
- 239000007789 gas Substances 0.000 claims abstract description 69
- 239000002101 nanobubble Substances 0.000 claims abstract description 63
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 49
- 238000000926 separation method Methods 0.000 claims abstract description 47
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000007921 spray Substances 0.000 claims abstract description 33
- 238000012545 processing Methods 0.000 claims abstract description 22
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- 239000003973 paint Substances 0.000 claims abstract description 16
- 238000005507 spraying Methods 0.000 claims abstract description 16
- 238000007639 printing Methods 0.000 claims abstract description 8
- 238000004043 dyeing Methods 0.000 claims abstract description 4
- 239000004753 textile Substances 0.000 claims abstract description 4
- 238000005516 engineering process Methods 0.000 claims description 16
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- 235000007164 Oryza sativa Nutrition 0.000 description 2
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- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
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- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical class N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 description 2
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- UOCLXMDMGBRAIB-UHFFFAOYSA-N 1,1,1-trichloroethane Chemical class CC(Cl)(Cl)Cl UOCLXMDMGBRAIB-UHFFFAOYSA-N 0.000 description 1
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- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
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- BLUWRIUGZBUUHI-UHFFFAOYSA-N toluene;cyanide Chemical class N#[C-].CC1=CC=CC=C1 BLUWRIUGZBUUHI-UHFFFAOYSA-N 0.000 description 1
- 229960002415 trichloroethylene Drugs 0.000 description 1
- UBOXGVDOUJQMTN-UHFFFAOYSA-N trichloroethylene Natural products ClCC(Cl)Cl UBOXGVDOUJQMTN-UHFFFAOYSA-N 0.000 description 1
- 230000005514 two-phase flow Effects 0.000 description 1
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Classifications
-
- 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
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
- B01D45/16—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by the winding course of the gas stream, the centrifugal forces being generated solely or partly by mechanical means, e.g. fixed swirl vanes
-
- 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
- B01D53/38—Removing components of undefined structure
- B01D53/44—Organic components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
- B01D2251/104—Ozone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0258—Other waste gases from painting equipments or paint drying installations
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)
Abstract
The invention discloses a kind of vertical exhaust treatment system based on dynamic interception and micro-nano bubbler techniques, it includes waste gas purification apparatus and micro-nano bubble generator, waste gas purification apparatus has exhaust gas inlet, the outlet of net gas, waste gas purification chamber, collecting pit, gas-water separation unit, blower fan, and dynamic interception unit, micro-nano bubble waterfog head are configured with waste gas purification room；Micro-nano bubble generator includes micro-nano airlift pump, spray liquid circulating filtration unit and ozone generator；After waste gas enters waste gas purification apparatus by exhaust gas inlet, exported and discharged from net gas by fan action after the processing of waste gas purification chamber and gas-water separation unit.The system greatly reduces the dosage of ozone, improve the Operating ettectiveness of system, processing cost is lower, clean-up effect is more preferable, suitable for Wind Volume, the processing of VOCs waste gas, paint spraying waste gas containing low concentration, the industrial tail gas such as waste gas caused by waste gas or textile printing and dyeing caused by printing, application are wider.
Description
Technical field
The present invention relates to exhaust-gas treatment art, more particularly to it is a kind of based on dynamic interception and micro-nano bubbler techniques
Exhaust treatment system.
Background technology
Defined according to WHO, VOC (VOCs) refers at normal temperatures, and the various of 50 DEG C -260 DEG C of boiling point have
Machine compound.VOCs presses its chemical constitution, can be further divided into:Alkanes, aromatic hydrocarbons, esters, aldehydes and other etc..At present
What is identified has kind more than 300.It is most common have benzene,toluene,xylene, styrene, trichloro ethylene, chloroform, trichloroethanes,
Diisocyanate (TDI), two isocyanide toluene esters etc..VOCs is most most important precursor before PM 2.5 is formed, and allows fine particle
Pollution is gradually serious, and therefore, the improvement for VOCs has become a big emphasis of various regions air contaminant treatment.VOCs is except production
Outside raw ozone pollution, secondary organic aerosol (25-%35) is also formed, VOCs has become determining for China city photochemical fog
Qualitative precursor.It is perfect with nearly 2 years laws and regulations and standard, according to the insiders, it is expected that VOCs policies just run into flex point
Phase, it is contemplated that VOCs charges for disposing pollutants policy and relevant industries standard will be put into effect successively during 2017 and " 13 ".One stone evokes thousand
Layer wave, VOCs (volatile organic matter) progresses into environmental protection industry (epi) and the public visual field, and has successfully upgraded to atmosphere pollution and controlled
Manage the new focus of industry concern.Therefore, Particulate Pollution is reduced, removes photochemical fog, improves urban air-quality, VOCs's
It is imperative to control.
As shown in figure 1, in low temperature process industrial circle, the industry that VOCs discharges are related to is numerous, such as organic chemical industry, petrochemical industry row
Industry, packages printing, face coat etc., VOCs pollutant kinds are various, composition is complicated, and its species has hydro carbons, ketone, esters, alcohol
Class, phenols, aldehydes, amine, cyanogen class etc., due to VOCs complicated components, different types of compound property is different, most industries
VOCs discharge as a mixture again, therefore be often difficult to reach regulation effect using single Treatment process, in economy
On also do not calculate, need the combination using a variety of Treatment process under normal circumstances, can be only achieved good regulation effect.
Perfect with nearly 2 years laws and regulations and standard, paint spraying waste gas (volatile organic matter) progresses into environmental protection
Industry and the public visual field, paint spraying waste gas be PM 2.5 formed before most most important precursor -- multifarious change, allow
Fine particles pollution is gradually serious, and the improvement for paint spraying waste gas has become a big emphasis of various regions air contaminant treatment.
Paint spraying waste gas also forms secondary organic aerosol (25-%35), paint spraying waste gas is in addition to producing ozone pollution
As the decisive precursor of China city photochemical fog.Particulate Pollution pollution is reduced, removes photochemical fog, improves city
City's air quality, the control of paint spraying waste gas are imperative.
Low temperature etc. is industrial, and the industry that the discharge of paint spraying waste gas is related to is numerous, and pollutant kind is various, and composition is complicated,
Its species has hydro carbons, ketone, esters, alcohols, phenols, aldehydes, amine, cyanogen class etc..So Treatment process system is complicated, it is related to 10
Multiple technologies and combination technique.Paint spraying exhaust gas constituents are complicated, and different types of compound property is different, most industries
Paint spraying waste gas discharges as a mixture again, therefore is often difficult to reach regulation effect using single Treatment process,
Also do not calculate economically, need the combination using a variety of Treatment process under normal circumstances, can be only achieved good regulation effect.
For these waste gas, the most wide VOCs Treatment process of application is mainly including adsorption recovery technology, absorption at present
Concentration technique, bioanalysis, Production by Catalytic Combustion Process, Adsorption Concentration-catalysis burning, low-temperature dynamic interception+absorption techniques, low-temperature dynamic are blocked
Cut+catalysis technique and high temperature incineration technology etc..In actual treatment, for high concentration, the waste gas that has recovery value, first have to
Recovery, then administered using other technologies；For the waste gas of mid-strength range, there is being returned for recovery value
Receive, no recovery value will be burnt；But low concentration, the relatively scattered most waste gas discharge of industry distribution, always
Perplex person skilled.
Patent CN 205073862U are handled and purified micro-nano bubble purifying column and micro- using circulation fluid device for cleansing and recycling
Circulation fluid containing more VOCs pollutants caused by biological purification tower, automatically feeds and reuses, greatly optimize monomer
Micro-nano bubble purifying column and microbial cleaning tower processing system produces the restrictive condition of waste liquid secondary pollution so that micro-nano gas
Bubble purifying column and microbial cleaning tower combine processing VOCs waste gas can widely use, but microbial fermentation can produce in itself it is different
Taste, micro-nano bubble are placed on front-end processing, have purified gas, and aqueous and VOCs micro-nano air-bubble enters microbiological treatment
Module, in microorganism module aggregates, discharge finally or through microorganism module, then caused by complex microorganism module itself
Smell emits jointly, not further absorption, filtering after microorganism module it can be seen from the structure chart of the patent
Deng facility, therefore, the effect of patent description can not be reached well.If microorganism modular filtration effect is especially good, patent
The equipment of description and the processing for being not suitable for big flow, air drag is excessive, and energy consumption is excessive；If microorganism modular filtration effect
It is not fine, the effect of patent description is extremely difficult to.We investigation and in actual use it has also been found that it still has
The problem of VOC emission is not up to standard.
The A of patent CN 105056726 disclose a kind of micro-nano bubble processing system of VOC ozone, including exhaust-gas treatment dress
Put, spray liquid circulation filter, micro-nano bubble generator and ozone generating-device, its ozone generating-device used
The popularization and application of the patent are limited in the operation of the system；In addition, it is 6.0-6.4 that pH value is added in its technological process
The faintly acid N- N-formyl morpholine N aqueous solution, according to chemical industry ABC：N- N-formyl morpholine Ns are good aromatic hydrocarbon solvents, and this is also
It is to say, the patent is good for aromatic hydrocarbons effect, as the specific practical application example of the patent by taking aromatic hydrocarbons as an example, but can not
It is widely used in other such as alkanes, lipid and aldehydes.It simultaneously as there is the addition of additive, can control cost and operation
Bring certain risk.
The content of the invention
In view of this, in view of the existing deficiencies of the prior art, its main purpose is to provide a kind of simple to operate, peace to the present invention
Entirely, high efficiency, low cost waste gas qualified discharge the vertical exhaust-gas treatment system based on dynamic interception and micro-nano bubbler techniques
System.
Test discovery through us, VOCs in atmosphere in the presence of, largely adsorbed by subparticle, when microparticle is removed
When, most of VOCs is also removed simultaneously.Based on above actual phenomenon, when we to Wind Volume, low concentration VOCs, containing fine
During the gas purification of grain, fine particle used dynamic interception technology is disposed first, relatively great amount of VOCs is just disposed of,
So by the gas of preliminary purification, can reaches qualified discharge after further treatment, and subparticle object amount drastically subtracts again
It is few.Meanwhile for subparticle process angle, the quality of larger particles is huge but quantity is relatively fewer, the matter of ultra-fine grain
Measure smaller but enormous amount.If huge number of pollutant cleared up in advance, the processing pressure of rear road treatment process is natural
Reduce.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of vertical exhaust treatment system based on dynamic interception and micro-nano bubbler techniques, including waste gas purification apparatus and
Micro-nano bubble generator, the waste gas purification apparatus have exhaust gas inlet and the outlet of net gas, it is net to be configured with waste gas inside it
Change room, the collecting pit positioned at waste gas purification chamber bottom, the gas-water separation unit at the top of waste gas purification chamber and be arranged in net
The blower fan of gas outlet；Net gas outlet is positioned at the top of gas-water separation unit；At least first-stage dynamic is configured with waste gas purification room
Interception unit, an at least micro-nano bubble waterfog head is arranged with per one-level dynamic interception unit top；It is described micro-nano
Bubble generator includes micro-nano airlift pump, spray liquid circulating filtration unit and ozone generator, spray liquid circulating filtration list
The input of member is connected by the collecting pit of pipeline and waste gas purification apparatus, and the output end of spray liquid circulating filtration unit passes through pipe
Road is connected with the first input end of micro-nano airlift pump, the output end of ozone generator pass through pipeline and micro-nano airlift pump the
Two inputs are connected, and the output end of micro-nano airlift pump is connected by the micro-nano bubble waterfog head in pipeline and waste gas purification room
Connect.
After waste gas enters waste gas purification apparatus by exhaust gas inlet, lead to after the processing of waste gas purification chamber and gas-water separation unit
Cross fan action and export discharge from net gas.
As a kind of preferred scheme, the dynamic interception unit is vortexed dynamic interception technology using bipyramid platform.
As a kind of preferred scheme, two-stage dynamic interception unit is at least configured with waste gas purification room from bottom to top, it is described
Dynamic interception unit transverse is arranged in waste gas purification room.
As a kind of preferred scheme, the dynamic interception unit transverse is arranged in waste gas purification room, and exhaust gas inlet is located at
Side-walls below bottom first-stage dynamic interception unit, waste gas tangentially enter dynamic interception unit through exhaust gas inlet.
As a kind of preferred scheme, the side wall of the waste gas purification chamber at least arranges an inlet scoop, and the inlet scoop leads to
Piping is connected with the 3rd input of micro-nano airlift pump, by the micro-nano bubble mixture in waste gas purification room extract to
Micro-nano airlift pump.
As a kind of preferred scheme, the blower fan is axial flow blower, and negative pressure is produced in waste gas purification apparatus, and with malleation
Form processed clean gas is pumped out.
As a kind of preferred scheme, the spray liquid circulating filtration unit is configured with solid-liquid separation unit and spray liquid storage
Tank, solid-liquid separation unit will come from collection liquid in collecting pit and carry out separation of solid and liquid；Spray liquid storage tank is used for after storing separation of solid and liquid
Collection liquid, and be connected by pipeline with the first input end of micro-nano airlift pump.
As a kind of preferred scheme, solid-liquid separation unit includes separation pump and/or separation of solid and liquid component.
Invention additionally discloses on the systematic difference, will the system be applied to the purified treatment of the waste gas containing VOCs.
Invention additionally discloses on the systematic difference, will the system be applied to paint spraying waste gas, caused by printing
The purified treatment of waste gas caused by waste gas or textile printing and dyeing.
Vertical exhaust treatment system disclosed in this invention based on dynamic interception and micro-nano bubbler techniques and existing skill
Art is compared, and is had the advantages that：
1) system uses vertical structure, and dynamic interception unit is integrated in inside waste gas purification apparatus, using upper and lower point
Level is set, and forms the overall structure of a better tightness, and floor space is smaller.
2) by the one-level even pretreatment of multistage dynamic interception, a large amount of fine particles are intercepted to be disposed so that after
The process of road processing is reduced, and processing pressure also greatly reduces.Exemplified by the cleannes of later road processing equipment, locate in advance through dynamic interception
Processing equipments pollution in Li Houhou roads drastically reduces, and original half a year just needs the part cleared up, can with more than 3 years or even 5 years with
On clear up again, greatly reduce the maintenance cost of equipment.
3) system carries out intercept process using dynamic interception technology to VOCs first, then useless in the oxidation of micro-nano bubble
The secondary superpower oxidative degradations of VOCs and adsorbing separation are carried out in air purifying apparatus.Pass through dynamic interception technology, and waste gas purification
The collective effect for the closed loop cycle that device and micro-nano bubble generator are formed, ozone usage are greatly lowered, also dropped significantly
Low processing cost processing method, and it is easy to operate, processing method is also safer, solves conventional dynamic intercepting efficiency and effect
Can not be up to standard the problem of.
4) preferably bipyramid platform vortex dynamic interception technology carries out intercept process to waste gas, and the dynamic interception technology can be realized greatly
Flow exhaust-gas treatment so that VOCs building-up effects greatly improve, and interception elimination ability is strong, and energy consumption is low, and intercepting efficiency is very high.
5) contain a large amount of water smokes in the VOCs gases by the micro-nano bubble spray liquid processing of ozone, portion has been adsorbed in water smoke
Divide the undegradable reacted intermediate of VOCs and VOCs, the water smoke in discharge gas got rid of by gas-water separation unit,
So as to more fully remove remaining VOCs compositions.
6) dynamic interception unit together as one is more suitable for the waste gas purification after anticipating, it is used by the system
The repeatedly drop such as dynamic interception separation, the absorption of micro-nano bubble droplet, the superpower oxidation of micro-nano bubble is carried out to the waste gas containing VOCs
Solution processing so that VOC clearance may be up to more than 97%, and especially suitable for Wind Volume, low concentration VOCs content industry tails
The processing of gas.
7) occasion for producing VOCs discharges in industrial enterprise necessarily has substantial amounts of microparticle to produce, such as spray painting, coating, print
Brush, textile printing and dyeing etc., the technology is fully applicable to these occasions, and from the point of view of energy-saving and emission-reduction, its actual application value is huge
Greatly.
Brief description of the drawings
Fig. 1 is the industry distribution that volatile organic matter is related to
Fig. 2 is the structural representation of the vertical exhaust treatment system based on dynamic interception and micro-nano bubbler techniques in embodiment
Figure
Accompanying drawing marks：
Waste gas purification apparatus：Exhaust gas inlet 11, net gas outlet 12, gas-water separation unit 13, axial flow blower 14, collecting pit
15th, dynamic interception unit 16, micro-nano bubble waterfog head 17, micro-nano airlift pump 18, ozone generator 19, separation pump 20,
Separation of solid and liquid component 21, spray liquid storage tank 22, inlet scoop 23, waste gas purification chamber 24.
Embodiment
The present invention is further explained below in conjunction with the accompanying drawings and the specific embodiments.
Embodiment 1：By taking the waste gas containing VOCs as an example, first, the related terms in embodiment 1 are explained as
Under：
Air water is primarily referred to as the material in whole thing condition in waste gas purification room, including water, ozone, droplet, waste gas, VOCs,
The complex composite things such as the particulate matter containing VOCs, the droplet containing VOCs, water containing VOCs.
Droplet is primarily referred to as absorption and unadsorbed VOCs fine liquid particles and water smoke.
The Compound Water that spray liquid is primarily referred to as treating through micro-nano bubble generator is through micro-nano bubble waterfog head
The water droplet ejected.
Collection liquid is mainly that the droplet rich in ozone, waste gas and VOCs separated by moisture separator is collected shape
Into.
Fog is primarily referred to as in the space of waste gas purification chamber, importing after dynamic interception processing unit first separation according to
The so waste gas containing VOCs and the mixing fog formed after rich micro-nano bubble water atomization ozoniferous in the space of waste gas purification chamber
Gas.
As shown in Fig. 2 disclosed in embodiment at a kind of vertical waste gas based on dynamic interception and micro-nano bubbler techniques
Reason system, it includes waste gas purification apparatus, micro-nano bubble generator and retracting device.
Waste gas purification apparatus has exhaust gas inlet 11 and net gas outlet 12, is internally provided with waste gas purification chamber 24, air water point
From unit 13, axial flow blower 14 and collecting pit 15.
Exhaust gas inlet 11 is arranged in the side wall of the lower section waste gas purification chamber 24 of first order dynamic interception unit 16, net gas outlet
12 are arranged in the top of waste gas purification chamber 24.
Lateral arrangement has two-stage dynamic interception unit 16 from bottom to top in waste gas purification chamber 24, per one-level dynamic interception unit
Micro-nano bubble waterfog head 17 is arranged with 16, forms the friendship of dynamic interception unit 16 and micro-nano bubble waterfog head 17
For arrangement.According to operating mode needs, the waste gas purification chamber can also be designed to first-stage dynamic interception or multistage dynamic interception, move
State interception unit 16 and micro-nano bubble waterfog head 17 are alternately arranged from bottom to top, can on every one-level dynamic interception unit 16
Multiple micro-nano bubble waterfog heads 17 are set to be used as one group according to the cross section size of operating mode or device.
In the presence of dynamic interception unit 16, waste gas and contained VOCs are intercepted separated for the first time, contained in waste gas
A large amount of VOCs separated with fine particle is intercepted.Preferably, dynamic interception unit 16 is adopted in embodiment
Intercept process is carried out to waste gas with bipyramid platform vortex dynamic interception technology, the dynamic interception technology has air drag small, is easy to
Realize that big flow is handled, tangentially collision is increased sharply waste gas through-flow, and VOCs building-up effects are high, and interception elimination ability is strong, and energy consumption is low,
The advantages that intercepting efficiency is high, it can be isolated well by VOCs contained in waste gas and with microparticle thing by the dynamic interception
Come, intercepting efficiency is very high.
Gas-water separation unit 13 is arranged in the top of waste gas purification chamber 24, can for separating and going the moisture content in degassed water
Select ramp type gas-liquid separator, spiral-flow plate-type gas-liquid separator, centrifugal gas-liquid separator or silk screen gas-liquid separator etc..Axle
Flow fan 14 is arranged at the net gas outlet 12 above waste gas purification chamber, is produced and born in waste gas purification room by axial flow blower 14
Pressure, and processed clean gas pump drainage is gone out in the form of malleation.Collecting pit 15 is arranged in waste gas purification chamber bottom, receives
Reaction solution fallen into waste gas purification room etc..
The moisture content being removed is rich in ozone, waste gas and VOCs, and falls into collecting pit 15；Clean gas is cleaned to be passed through
Axial flow blower 14 is discharged in air.
Micro-nano bubble generator includes micro-nano airlift pump 18, spray liquid circulating filtration unit and ozone generator
19。
Spray liquid circulating filtration unit is configured with separation pump 20, separation of solid and liquid component 21 and spray liquid storage tank 22.Separate pump
The collection liquid that ozone, waste gas and VOCs are rich in collecting pit is carried out separation of solid and liquid by 20, to remove the solid in spray liquid
Particulate matter；Separation of solid and liquid component 21 will separate the further filtration, purification of collection liquid after pump 20 is handled, and be collected with further remove
Solid particulate matter in liquid, can specifically use has membrane separation assemblies or glass marble filler filter assemblies etc.；Through separation of solid and liquid component
Collection liquid after 21 filtration, purifications is stored in spray liquid storage tank 22.Contrasted what deserves to be explained is being different from background technology
The technical scheme of file, the spray liquid storage tank 22 in the present invention are used to be carried through the collection liquid after filter purifies, and are added without pH
It is worth for 6.0-6.4 faintly acid N- N-formyl morpholine N aqueous solution etc., therefore, the application of the exhaust treatment system is also relatively wider
General, treatment effect is more preferable.
Spray liquid storage tank 22 and ozone generator 19 in spray liquid circulating filtration unit are connected to micro- by pipeline respectively
Nano bubble pump 18.What the ozone as caused by the spray liquid after the purification that spray liquid storage tank 22 provides and ozone generator 18 was formed
Biphase gas and liquid flow, in micro-nano airlift pump 18, due to the effect of high speed shear, gas is cut into the gas of micro-nano size
Bubble, the micro-nano bubble form the novel gas-liquid two phase flow of stable micro-nano air-bubble, i.e., new micro-nano bubble with liquid
Water.New micro-nano air-bubble, through waterfog head secondary-atomizing, forms high speed, high pressure jet stream, i.e. shape in waste gas purification room
The Cheng Xin spray liquid rich in micro-nano bubble, the i.e. droplet rich in micro-nano bubble.
Air water after micro-nano air-bubble oxidation Decomposition contains ozone, waste gas and VOCs after the separation of separative element 13
Water again collected again, through micro-nano bubble generator, be again introduced into micro-nano bubble waterfog head 17 and carry out secondary mist
Change, so ceaselessly circular flow, micro-nano air-bubble is formed closed loop cycle in the entire system, by VOCs exhaustive oxidations point
Solution.It can be seen that the process substantially increases the utilization ratio of ozone, so as to reduce the usage amount of ozone.
As a further improvement, the side wall in waste gas purification chamber 24 at least arranges an inlet scoop 23, the inlet scoop 23 is logical
Piping is connected with micro-nano airlift pump, and the micro-nano bubble mixture (mixing fog) in waste gas purification chamber 24 is extracted extremely
Micro-nano airlift pump, circulated with being formed in one, further improve ozone utilization rate., can be by air draught in multistage dynamic interception
Mouthfuls 23 are arranged between adjacent two-stage dynamic interception, but also and limited to this, and the number of inlet scoop 28 and arrangement mode can roots
It is designed according to specific duty requirements, the micro-nano bubble mixture (mixing fog) in waste gas purification chamber 23 can be made effectively to extract
To micro-nano airlift pump 31, here is omitted.Further reduce the usage amount of ozone by the interior circulation, also improve
Overall operation efficiency.
Dynamic waste gas is tangentially entered waste gas purification chamber 24 by the system through exhaust gas inlet 11, through the dynamic in waste gas purification chamber 24
After the alternate interception of interception unit 16 and micro-nano bubble waterfog head 17, chlorination and adsorption treatment, through gas-water separation unit
The clean gas of 16 gas-liquid separations is through the discharge of net gas outlet 12.The gas entered due to exhaust gas inlet 11 is after pretreatment relatively more
Totally, and the effect through two-stage dynamic interception unit 16 and two groups of micro-nano bubble waterfog heads 17, gas-water separation unit 13 divide
The liquid separated out also more cleans, and falls directly into collecting pit 15 and is recycled.
The upright type of design uses integrated structure, and floor space is small, can be corresponding for the exhaust-gas treatment of big concentration
Increase system whole height, inside sets multistage dynamic too blocking apparatus and multigroup micro-nano bubble.The system will be blocked dynamically
Unit together as one is cut, it is more applicable for having carried out at pretreatment and the purification of the less waste gas of solid impurity content early stage
Reason, and the purified treatment of the less waste gas of particle diameter of contained particulate matters.
The specific workflow of the system is as follows：
Waste gas enters waste gas purification chamber 24 through exhaust gas inlet 11, is in tangential direction with dynamic interception unit 16, this tangentially enters
It is smaller to enter more vertically to be directly entered windage, turns to 90 degree and changes back into first order dynamic interception unit 16, in first order dynamic
The specific region manufacture vortex that waste gas flows through in interception unit 16 is cut with reducing gas axis of flow to flow velocity in gas flowing
Ultra high shear is provided to direction to intercept, and realizes that physical shear intercepts effect, the microparticle thing that will be enriched in VOCs intercepts simultaneously
Separation.Under dynamic interception effect, waste gas and the intercepted separation of contained VOCs.Produced through micro-nano airlift pump 18 and by micro-nano
Rice air-bubble is pumped into micro-nano bubble waterfog head 17, and the spray liquid rich in micro-nano bubble is formed in waste gas purification chamber 24.
By the waste gas after dynamic interception in uphill process, micro-nano bubble droplet absorption is carried out in waste gas purification chamber 24, i.e., through micro-
Nano bubble waterfog head 17 forms the droplet rich in micro-nano bubble, and 24 pairs include ozone, aoxidize and give up in waste gas purification room
Gas and the various compounds of VOCs are adsorbed, and form the air water containing ozone, oxidation gaseous effluent and VOCs.Because VOCs can part quilt
Water-soluble desorption, and alkaline water can be improved to dissolve VOCs and adsorbed, after micro-nano air-bubble ozoniferous occurs, it is possible to achieve
Superpower oxidative degradation to VOCs.And in micro-nano bubble droplet adsorption process, micro-nano bubbles burst ruptures droplet
The fine mist with more bigger serface is formed, ozone, oxidation gaseous effluent and VOCs, which are adsorbed with water, to be locked in droplet.Through absorption
Gas after decomposition continues to rise to second level dynamic interception unit 16, and repeats above procedure, is formed due to ozone with water
The strong oxidizing property that hydrogen peroxide has and the ratio surface that the tinyization droplet through the formation of micro-nano bubble waterfog head increased dramatically, greatly
Big Strong oxdiative and the suction-operated improved to VOCs.By micro-nano gas corresponding to second level dynamic interception unit 16 and its
After soaked fog spray head 17 is handled, air water rises to gas-water separation unit 13 from waste gas purification chamber 24, removes the moisture content in air water, this
When, the clean gas after being cleaned is discharged in air through axial flow blower 14 by net gas outlet 12, is divided by gas-water separation unit 13
The water droplet rich in ozone, oxidation gaseous effluent and VOCs from rear formation flow to collecting pit 15 after waste gas purification chamber, and is led again
Enter to the micro-nano bubble generator of ozone, the Strong oxdiative of the VOCs in water body is degraded again.Above procedure reciprocation cycle, it is real
Now to VOCs absorption degradation, and new ozone is constantly persistently added in system by ozone generating-device to maintain water system
Strong oxidizing property.
In the process, caused droplet part is collected into collecting pit 15 in waste gas purification room, is then followed through spray liquid
Reuse enters micro-nano airlift pump 18 after ring filter element is filtered, after the solid particulate matter being filtered is collected at concentration
Reason, filtered remaining high-concentration waste liquid and collected for subsequent treatment.
As fully visible, the system carries out intercepting separating treatment for the first time first using dynamic interception to VOCs, then useless
The superpower oxidative degradations of second of VOCs and adsorbing separation are carried out by micro-nano bubble in gas clean room.This is with respect to other processing sides
Method is safer, easy to operate, and processing cost is low.After the system acts on, VOCs clearance up to more than 97% very
To higher.The present invention is applicable not only to Wind Volume, the processing of low concentration VOCs content industrial tail gas, it is big to could be applicable to exhausted air quantity
In 20,000 m3/h occasion, it can also equally be applied to the operating mode occasion of relatively small air quantity after being miniaturized.
Embodiment 2：Vertical exhaust treatment system disclosed in this invention based on dynamic interception and micro-nano bubbler techniques
It can be also used for handling paint spraying waste gas.
The m of air quantity 20,0003The paint spraying waste gas of/hour enters waste gas purification chamber 24 through exhaust gas inlet 11, with dynamic interception list
Member 16 is in tangential direction, and this is tangential smaller into windage is more vertically directly entered, and turns to 90 degree and changes back into first order dynamic
Interception unit 16, the specific region manufacture that waste gas flows through in first order dynamic interception unit 16 are vortexed to reduce gas stream
Dynamic axial flow velocity, provide ultra high shear in gas flowing tangential direction and intercept, realize that physical shear intercepts effect, will be enriched in
Microparticle thing in VOCs paint spraying waste gas is intercepted and separated.Dynamic interception effect under, paint spraying waste gas and
The intercepted separation of contained VOCs.Produced through micro-nano airlift pump 18 and micro-nano air-bubble is pumped into micro-nano air-bubble spray painting
First 17, the spray liquid rich in micro-nano bubble is formed in waste gas purification chamber 24.By the waste gas after dynamic interception in uphill process
In, micro-nano bubble droplet absorption is carried out in waste gas purification chamber 24, i.e., is formed through micro-nano bubble waterfog head 17 rich in micro-
The droplet of nano bubble, 24 pairs adsorb including ozone, oxidation gaseous effluent and the various compounds of VOCs in waste gas purification room, and
Form the air water containing ozone, oxidation gaseous effluent and VOCs.Because VOCs can partly be dissolved in water absorption, and alkaline water can improve pair
VOCs dissolving absorption, after micro-nano air-bubble ozoniferous occurs, it is possible to achieve the superpower oxidative degradation to VOCs.And
In micro-nano bubble droplet adsorption process, micro-nano bubbles burst makes droplet rupture to form the tiny mist with more bigger serface
Drop, ozone, oxidation gaseous effluent and VOCs, which are adsorbed with water, to be locked in droplet.Gas after adsorption-decomposition function continues to rise to the second level
Dynamic interception unit 16, and repeat above procedure, the strong oxidizing property having due to the hydrogen peroxide that ozone and water are formed and through micro-nano
The ratio surface that the tinyization droplet that rice bubble waterfog head is formed increased dramatically, substantially increases the Strong oxdiative to VOCs and absorption
Effect.After micro-nano bubble waterfog head 17 is handled corresponding to second level dynamic interception unit 16 and its, air water is certainly useless
Gas clean room 24 rises to gas-water separation unit 13, removes the moisture content in air water, now, the clean gas warp beam stream after being cleaned
Blower fan 14 is discharged in air by net gas outlet 12, and what is formed after being separated by gas-water separation unit 13 is rich in ozone, oxidation gaseous effluent
Collecting pit 15 is flow to after waste gas purification chamber with VOCs water droplet, and is directed into the micro-nano bubble generator of ozone again,
The Strong oxdiative of the VOCs in water body is degraded again.Above procedure reciprocation cycle, realizes the absorption degradation to VOCs, and new smelly
Oxygen is constantly persistently added in system by ozone generating-device to maintain the strong oxidizing property of water system.
In the process, caused droplet part is collected into collecting pit 15 in waste gas purification room, is then followed through spray liquid
Reuse enters micro-nano airlift pump 18 after ring filter element is filtered, after the solid particulate matter being filtered is collected at concentration
Reason, filtered remaining high-concentration waste liquid and collected for subsequent treatment.Similarly, the system also can be rich in VOCs's to other
Waste gas is handled, and here is omitted.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
1. a kind of vertical exhaust treatment system based on dynamic interception and micro-nano bubbler techniques, it is characterised in that including waste gas
Purifier and micro-nano bubble generator,
The waste gas purification apparatus has exhaust gas inlet and the outlet of net gas, and waste gas purification chamber, net positioned at waste gas is configured with inside it
Change collecting pit, the gas-water separation unit at the top of waste gas purification chamber and the blower fan for being arranged in net gas outlet of room bottom；
Net gas outlet is positioned at the top of gas-water separation unit；At least first-stage dynamic interception unit is configured with waste gas purification room, per one-level
An at least micro-nano bubble waterfog head is arranged with above dynamic interception unit；
The micro-nano bubble generator includes micro-nano airlift pump, spray liquid circulating filtration unit and ozone generator, spray
The input for drenching liquid circulating filtration unit is connected by the collecting pit of pipeline and waste gas purification apparatus
Connect, the output end of spray liquid circulating filtration unit is connected by pipeline with the first input end of micro-nano airlift pump, ozone
The output end of generator is connected by pipeline with the second input of micro-nano airlift pump, and the output end of micro-nano airlift pump passes through
Pipeline is connected with the micro-nano bubble waterfog head in waste gas purification room.
2. vertical exhaust treatment system as claimed in claim 1, it is characterised in that the dynamic interception unit is using double
Frustum is vortexed dynamic interception technology.
3. vertical exhaust treatment system as claimed in claim 1, it is characterised in that in the waste gas purification room from bottom to top extremely
Two-stage dynamic interception unit is configured with less, and the dynamic interception unit transverse is arranged in waste gas purification room.
4. vertical exhaust treatment system as claimed in claim 1, it is characterised in that the dynamic interception unit transverse is arranged in
In waste gas purification room, exhaust gas inlet is located at the side-walls below bottom first-stage dynamic interception unit, and waste gas is cut through exhaust gas inlet
To entrance dynamic interception unit.
5. vertical exhaust treatment system as claimed in claim 1, it is characterised in that the side wall of the waste gas purification chamber at least cloth
An inlet scoop is put, the inlet scoop is connected by pipeline with the 3rd input of micro-nano airlift pump, by waste gas purification chamber
Interior micro-nano bubble mixture is extracted to micro-nano airlift pump.
6. vertical exhaust treatment system as claimed in claim 1, it is characterised in that the blower fan is axial flow blower, in waste gas
Negative pressure is produced in purifier, and is pumped out processed clean gas in the form of malleation.
7. vertical exhaust treatment system as claimed in claim 1, it is characterised in that the spray liquid circulating filtration unit configuration
There are solid-liquid separation unit and spray liquid storage tank, solid-liquid separation unit will come from collection liquid in collecting pit and carry out separation of solid and liquid；Spray
Liquid storage tank is used to store the collection liquid after separation of solid and liquid, and is connected by pipeline with the first input end of micro-nano airlift pump.
8. vertical exhaust treatment system as claimed in claim 7, it is characterised in that the solid-liquid separation unit includes separation pump
And/or separation of solid and liquid component.
9. vertical exhaust treatment system as claimed in claim 1, it is characterised in that it is applied to the purification of the waste gas containing VOCs
Processing.
10. vertical exhaust treatment system as claimed in claim 1, it is characterised in that it is applied to paint spraying waste gas, printing
The purified treatment of waste gas caused by caused waste gas or textile printing and dyeing.
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| CN114849448A (en) * | 2022-04-25 | 2022-08-05 | 南京工业大学 | Microbubble VOCs exhaust-gas treatment system |
| CN116943414A (en) * | 2023-09-18 | 2023-10-27 | 苏州敬天爱人环境科技有限公司 | Waste gas purification device and intelligent printing and dyeing waste gas waste heat utilization and deep treatment equipment |
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Application publication date: 20171226 |