CN109200728A - A kind of lacquer spraying waste gas processing unit - Google Patents
A kind of lacquer spraying waste gas processing unit Download PDFInfo
- Publication number
- CN109200728A CN109200728A CN201811299209.7A CN201811299209A CN109200728A CN 109200728 A CN109200728 A CN 109200728A CN 201811299209 A CN201811299209 A CN 201811299209A CN 109200728 A CN109200728 A CN 109200728A
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- Prior art keywords
- photooxidation
- coating cloud
- baffle plate
- removal device
- waste gas
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/20—Combinations of devices covered by groups B01D45/00 and B01D46/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/007—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by irradiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- 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
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/75—Multi-step processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/804—UV light
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Environmental & Geological Engineering (AREA)
- Biomedical Technology (AREA)
- Toxicology (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a kind of lacquer spraying waste gas processing units, including sequentially connected deflector type coating cloud removal device, coating cloud removal device baffle plate, pulse bag type dust collector, UV photooxidation device, UV photooxidation device baffle plate, spraying humidification pipe, active carbon liquid film absorption oxidation device, air-introduced machine and exhaust tube, active carbon is filled in seal chamber and constitutes the active carbon liquid film absorption oxidation device.Apparatus structure is simple, and design concept is ingenious, safe and convenient to use, and application environment is friendly, can efficiently realize the purification of lacquer spraying waste gas.
Description
Technical field:
The invention belongs to lacquer spraying waste gas processing technology fields, and in particular to a kind of group technology is gone by deflector type coating cloud
Except device+pulse bag-type dust-removing+UV photooxidation+active carbon liquid film absorbs oxide compound technique, the purification of lacquer spraying waste gas is realized.
Background technique:
In the spraying process of the industries such as machining, furniture surface, lacquer spraying waste gas can be generated, major pollutants are coating cloud
Grain object and volatile organic matter (VOC) because pollutant concentration is lower should not use the higher catalytic combustion process of purification efficiency.
Currently, this common treatment process of part lacquer spraying waste gas is wet process cascade spray or dry method filter pulp filtering+UV ultraviolet oxidation+work
Property charcoal absorption, there are the problem of: 1, wet process cascade is lower to the removal efficiency of coating cloud, about 70%, remaining coating cloud is easily to UV lamp pipe
It pollutes, paste influences light transmittance in surface of the light tube, but also can generate high concentrated organic wastewater；2, dry method filter pulp filtration, purification
Efficiency is higher, and about 98%, but increase in the presence of resistance after absorption coating cloud, it needs to regularly replace, generates the useless filter pulp of dangerous solid waste-；3, living
Property charcoal adsorption saturation after need to replace in time and generate dangerous solid waste-waste active carbon it is exceeded to also result in tail gas if replacing not in time.
For these reasons, currently, being badly in need of the lacquer spraying waste gas purification process that a kind of operational management is convenient, dangerous waste yield is few, high-efficient.
Other process lacquer spraying waste gas are also used in the prior art.Patent CN206404559U discloses a kind of coating waste
Gas processing system uses pulse bag type dust collector to separate the paint particle in exhaust gas with exhaust gas, paint particle first
It falls into dust storage chamber, exhaust gas enters incinerator and burned, and becomes carbon dioxide and water, then it is dried again, finally
Remaining exhaust gas is further decomposed into absorption in photolytic activity charcoal adsorbent equipment.Exhaust gas is made by pulse bag type dust collector first
It is excessive at its dedusting pressure.Patent CN102614731B disclose it is a kind of paint organic exhaust gas purification device and solvent recovery side
Method uses paper filter to carry out primary filtration to coating cloud first, then little particle is removed by cyclone dust collectors, using cloth
Bag dust collector removal finally does last absorption together by renewable corallite or renewable absorbent charcoal functional ceramic.The technique
Although bag filter front end be provided with paper filter, paper filter using when need not stop to replace.
Summary of the invention:
It is an object of the invention to overcome disadvantage of the existing technology, seek to design that a kind of efficiently to remove coating cloud, VOC net
Change high-efficient technique, it is big to solve existing fiber bag precipitator dedusting pressure burden, it is difficult to completely remove coating cloud, active
Carbon adsorbent is at high cost as dangerous fixed-end forces, and the problem that renewable acticarbon is at high cost.
To achieve the goals above, lacquer spraying waste gas processing unit of the present invention, including sequentially connected deflector type paint
Mist removal device, coating cloud removal device baffle plate, pulse bag type dust collector, UV photooxidation device, UV photooxidation device baffle plate,
Spraying humidification pipe, active carbon liquid film absorption oxidation device, air-introduced machine and exhaust tube, active carbon is filled in seal chamber and constitutes institute
State active carbon liquid film absorption oxidation device.
Deflector type coating cloud removal device of the present invention includes seal box, and along its length on be sequentially fixed at sealing
Seal case is divided into phase by several pieces of coating cloud removal device baffle plates of box top and bottom surface, coating cloud removal device baffle plate
Intercommunicated several regions, air inlet pipe are connected to deflector type coating cloud removal device upper inlet port, deflector type coating cloud removal device
Other end gas outlet is connected to the air inlet of pulse bag type dust collector, pulse bag type dust collector top gas outlet and UV light by pipeline
The connection of oxidation unit upper inlet port duct type, sets gradually several pieces along short transverse in UV photooxidation device left and right sides
The UV photooxidation device for being fixed with several groups ultraviolet lamp is divided by UV photooxidation device baffle plate, UV photooxidation device baffle plate
The different light areas being connected, spraying humidification pipe and UV photooxidation device lower part gas outlet and active carbon liquid film absorb oxidation dress
The pipeline connection of air inlet connection is set, active carbon liquid film absorption oxidation device gas outlet connects exhaust tube by air-introduced machine.
When the top edge of coating cloud removal device baffle plate of the present invention and top surface offset, lower edge and bottom surface there are
Gap, when the lower edge of coating cloud removal device baffle plate and bottom surface offset, there are gap, the makeups of UV photooxidation for top edge and top surface
It sets baffle plate left edge and when UV photooxidation device left side offsets, there are gap, the makeups of UV photooxidation for right hand edge and right side
It sets baffle plate right hand edge and when UV photooxidation device right side offsets, there are gaps for left edge and left side.
Coating cloud removal device baffle plate of the present invention is three pieces.
Ultraviolet lamp group number and UV photooxidation device baffle plate of the present invention corresponds.
Compared with prior art, the present invention what is obtained has the beneficial effect that: (1) deflector type coating cloud removal device hinders air-flow
Power is small, but can pre-removal bulky grain coating cloud, mitigate the load of pulse bag type dust collector, paint cleaning in slag about 1 year is primary in device, pole
Cost of labor is reduced greatly；(2) pulse bag type dust collector coating cloud removal efficiency is high, has both avoided the numerous of prior art replacement filter pulp
Trivial and dangerous waste generation, and pollution effect of the remaining coating cloud to UV ultraviolet lamp tube can be prevented；(3) deflector type UV ultraviolet oxidation,
It can increase exhaust gas in the case where not increasing occupation area of equipment in the residence time of UV UV-light oxidation device, be conducive to mention
High removal efficiency；(4) active carbon liquid film absorbs oxidation, avoids activated carbon adsorption saturation periodic replacement in prior art and generates danger
Useless problem, and the organic matter of remaining oxygen radical, ozone degradation small molecule is made full use of, and improve VOC removal efficiency
While, in turn avoid the pollution of remaining oxygen radical, ozone to atmosphere；(5) can automatic running, it is convenient for management, without more
Change filtrate；(6) its main structure is simple, and design concept is ingenious, safe and convenient to use, and application environment is friendly, wide market.
Detailed description of the invention:
Fig. 1 is main structure schematic illustration of the invention.
1, air inlet pipe；2, deflector type coating cloud removal device；3, coating cloud removal device baffle plate；4, pulse bag type dust collector；
5, UV photooxidation device；6, UV photooxidation device baffle plate；7, spraying humidification pipe；8, active carbon liquid film absorption oxidation device；9,
Air-introduced machine；10, exhaust tube.
Specific embodiment
Below by specific embodiment, the present invention will be further described:
Embodiment 1
The lacquer spraying waste gas processing unit that the present embodiment is related to, including air inlet pipe 1, deflector type coating cloud removal device 2, coating cloud are gone
Except device baffle plate 3, pulse bag type dust collector 4, UV photooxidation device 5, UV photooxidation device baffle plate 6, spraying humidification pipe 7,
Active carbon liquid film absorption oxidation device 8, air-introduced machine 9 and exhaust tube 10, deflector type coating cloud removal device 2 include seal box and edge
Several pieces of coating cloud removal device baffle plates 3 of seal case top and bottom, coating cloud removal dress are sequentially fixed on length direction
It sets baffle plate 3 and seal case is divided into interconnected several regions, air inlet pipe 1 and 2 top of deflector type coating cloud removal device
Air inlet connection, 2 other end gas outlet of deflector type coating cloud removal device are connected to the air inlet of pulse bag type dust collector 4 by pipeline
Mouthful, 4 top gas outlet of pulse bag type dust collector is connected to 5 upper inlet port duct type of UV photooxidation device, is disguised in UV photooxidation
It sets 5 left and right sides and sets gradually several pieces of UV photooxidation device baffle plates 6, UV photooxidation device baffle plate 6 along short transverse
The UV photooxidation device 5 for being fixed with several groups ultraviolet lamp is divided into the different light areas being connected, spraying humidification pipe 7 and UV
5 lower part gas outlet of photooxidation device is connected to the pipeline that 8 air inlet of active carbon liquid film absorption oxidation device connects, active carbon liquid film
8 gas outlet of absorption oxidation device connects exhaust tube 10 by air-introduced machine 9, and active carbon is filled in seal chamber and constitutes the activity
Charcoal liquid film absorption oxidation device 8.
When the top edge and top surface of the coating cloud removal device baffle plate 3 that the present embodiment is related to offset, lower edge and bottom surface
There are gap, when the lower edge of coating cloud removal device baffle plate 3 and bottom surface offset, there are gap, UV light for top edge and top surface
When 6 left edge of oxidation unit baffle plate and 5 left side of UV photooxidation device offset, there are gap, UV for right hand edge and right side
When 6 right hand edge of photooxidation device baffle plate and 5 right side of UV photooxidation device offset, there are gaps for left edge and left side.
The coating cloud removal device baffle plate 3 that the present embodiment is related to is three pieces, can also be designed according to actual needs.Lacquer spraying waste gas
It walks into deflector type coating cloud removal device 2 along 3 serpentine of coating cloud removal device baffle plate, in bending place, air-flow forms 180 degree and turns
To the centrifugal force of generation, the walking distance of air-flow is not only extended, and effectively removes most of bulky grain coating cloud, is slowed down
The dedusting pressure of succeeding impulse sack cleaner 4.
The ultraviolet lamp group number and UV photooxidation device baffle plate 6 that the present embodiment is related to correspond.
The course of work for the lacquer spraying waste gas processing unit that the present embodiment is related to are as follows:
(1) lacquer spraying waste gas enters deflector type coating cloud removal device 2 from air inlet pipe 1, and the centrifugation generated is turned in air-flow 180 degree
Bulky grain coating cloud is removed under the action of power, coating cloud removal rate about 60% greatly mitigates the load of pulse bag type dust collector；
(2) subsequently into pulse bag type dust collector 4, remaining coating cloud particulate matter (removal rate 100%) is removed, coating cloud is removed
Lacquer spraying waste gas afterwards only remains VOC；
(3) remaining lacquer spraying waste gas is entering deflector type UV photooxidation device 5, the oxygen radical, smelly that the irradiation of UV light generates
Macromolecular, VOC oxidation not soluble in water, can be degraded to small molecule ketone soluble easily in water, aldehyde by oxygen, and baffling mode can make oxygen free
Base, ozone and VOC come into full contact with, and improve oxidative degradation effect, degradation efficiency about 70%；
(4) spraying humidification pipe 7 sprays liquid, oxygen radical, ozone and the organic matter that dissolving step (3) generates, into work
Property charcoal liquid film absorption oxidation device 8, form liquid film in activated carbon capillary inner surface, the retention absorption of liquid film had both provided oxygen freedom
Base, ozone continue the place of oxygenolysis small organic molecule ketone, aldehyde, and retention inspissation improves reaction efficiency again, always
Purification efficiency about 80%；Purified tail gas passes through 10 high altitude discharge of exhaust tube.
Comparative example 1
No deflector type coating cloud removal device is removed in this comparative example, other are same as Example 1.
Comparative example 2
No active carbon liquid film absorption oxidation device is removed in this comparative example, other are same as Example 1.
Upper table is the test result of embodiment 1 and comparative example 1 and 2.When without deflector type coating cloud removal device, remaining coating cloud meeting
VOC degradation efficiency is influenced, and needs periodic cleaning ultraviolet lamp tube.Remaining coating cloud also will increase active carbon organic loading, influence to drop
Solve efficiency.
Claims (5)
1. a kind of lacquer spraying waste gas processing unit, which is characterized in that gone including sequentially connected deflector type coating cloud removal device, coating cloud
Except device baffle plate, pulse bag type dust collector, UV photooxidation device, UV photooxidation device baffle plate, spraying humidification pipe, active carbon
Active carbon is filled in seal chamber and constitutes the active carbon liquid film absorption by liquid film absorption oxidation device, air-introduced machine and exhaust tube
Oxidation unit.
2. lacquer spraying waste gas processing unit according to claim 1, which is characterized in that deflector type coating cloud removal device includes close
Joint sealing, and along its length on be sequentially fixed at several pieces of coating cloud removal device baffle plates of seal case top and bottom, paint
Seal case is divided into interconnected several regions, air inlet pipe and deflector type coating cloud removal device by mist removal device baffle plate
Upper inlet port connection, deflector type coating cloud removal device other end gas outlet are connected to the air inlet of pulse bag type dust collector by pipeline
Mouthful, pulse bag type dust collector top gas outlet is connected to UV photooxidation device upper inlet port duct type, in UV photooxidation device
Left and right sides set gradually several pieces of UV photooxidation device baffle plates along short transverse, and UV photooxidation device baffle plate will be fixed
There is the UV photooxidation device of several groups ultraviolet lamp to be divided into the different light areas being connected, spraying humidification pipe and UV photooxidation are disguised
It sets lower part gas outlet and is connected to the pipeline that active carbon liquid film absorption oxidation device air inlet connects, active carbon liquid film absorbs oxidation dress
It sets gas outlet and exhaust tube is connected by air-introduced machine.
3. lacquer spraying waste gas processing unit according to claim 2, which is characterized in that the top of coating cloud removal device baffle plate
When edge and top surface offset, there are gaps for lower edge and bottom surface, when the lower edge of coating cloud removal device baffle plate and bottom surface offset,
When its top edge and top surface offset there are gap, UV photooxidation device baffle plate left edge and UV photooxidation device left side,
When right hand edge and right side offset there are gap, UV photooxidation device baffle plate right hand edge and UV photooxidation device right side,
There are gaps for left edge and left side.
4. lacquer spraying waste gas processing unit according to claim 3, which is characterized in that coating cloud removal device baffle plate is three
Block.
5. lacquer spraying waste gas processing unit according to claim 4, which is characterized in that ultraviolet lamp group number and UV photooxidation device
Baffle plate corresponds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811299209.7A CN109200728A (en) | 2018-11-02 | 2018-11-02 | A kind of lacquer spraying waste gas processing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811299209.7A CN109200728A (en) | 2018-11-02 | 2018-11-02 | A kind of lacquer spraying waste gas processing unit |
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| Publication Number | Publication Date |
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| CN109200728A true CN109200728A (en) | 2019-01-15 |
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| CN201811299209.7A Pending CN109200728A (en) | 2018-11-02 | 2018-11-02 | A kind of lacquer spraying waste gas processing unit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109847517A (en) * | 2019-03-29 | 2019-06-07 | 徐州市贾拉克文化艺术品有限公司 | A kind of print production adsorptive purifier |
| CN110075705A (en) * | 2019-04-22 | 2019-08-02 | 广州颖创环保科技有限公司 | Protected against explosion dust pelletizing system |
| CN110813088A (en) * | 2019-12-23 | 2020-02-21 | 云南协同环保工程有限公司 | Waste gas treatment method and treatment system |
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2018
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109847517A (en) * | 2019-03-29 | 2019-06-07 | 徐州市贾拉克文化艺术品有限公司 | A kind of print production adsorptive purifier |
| CN110075705A (en) * | 2019-04-22 | 2019-08-02 | 广州颖创环保科技有限公司 | Protected against explosion dust pelletizing system |
| CN110813088A (en) * | 2019-12-23 | 2020-02-21 | 云南协同环保工程有限公司 | Waste gas treatment method and treatment system |
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