CN209333527U - A kind of VOCs organic waste gas treatment device - Google Patents
A kind of VOCs organic waste gas treatment device Download PDFInfo
- Publication number
- CN209333527U CN209333527U CN201821904711.1U CN201821904711U CN209333527U CN 209333527 U CN209333527 U CN 209333527U CN 201821904711 U CN201821904711 U CN 201821904711U CN 209333527 U CN209333527 U CN 209333527U
- Authority
- CN
- China
- Prior art keywords
- vocs
- exhaust
- activated carbon
- carbon adsorption
- photocatalytic oxidation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 239000007789 gas Substances 0.000 title claims abstract description 74
- 239000012855 volatile organic compound Substances 0.000 title claims abstract description 62
- 239000010815 organic waste Substances 0.000 title claims abstract description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 78
- 238000001179 sorption measurement Methods 0.000 claims abstract description 39
- 230000003647 oxidation Effects 0.000 claims abstract description 36
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 36
- 230000001699 photocatalysis Effects 0.000 claims abstract description 34
- 239000007921 spray Substances 0.000 claims abstract description 26
- 238000000746 purification Methods 0.000 claims abstract description 24
- 239000000428 dust Substances 0.000 claims abstract description 14
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 12
- 238000005192 partition Methods 0.000 claims description 11
- 239000003054 catalyst Substances 0.000 claims description 8
- 239000011941 photocatalyst Substances 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 239000004408 titanium dioxide Substances 0.000 claims description 6
- 230000003197 catalytic effect Effects 0.000 claims description 5
- 239000003463 adsorbent Substances 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 7
- 238000006303 photolysis reaction Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000003610 charcoal Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000001590 oxidative effect Effects 0.000 description 4
- 239000002912 waste gas Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 241000790917 Dioxys <bee> Species 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000009841 combustion method Methods 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- -1 hydroxyl radical free radical Chemical class 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 235000007849 Lepidium sativum Nutrition 0.000 description 1
- 244000211187 Lepidium sativum Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000011953 bioanalysis Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000007146 photocatalysis Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007592 spray painting technique Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The utility model discloses a kind of VOCs organic waste gas treatment devices, including dust filter unit, spray purification tower, VOCs concentration monitor, activated carbon adsorption device, photocatalytic oxidation device and control device, the gas outlet of spray purification tower is connected with exhaust pipe, VOCs concentration monitor is connected on exhaust pipe, the end of exhaust pipe passes through the air inlet of the first piping connection activated carbon adsorption device, the end of exhaust pipe passes through the air inlet of the second piping connection photocatalytic oxidation device, the gas outlet of activated carbon adsorption device passes through the air inlet of third piping connection photocatalytic oxidation device, the gas outlet of photocatalytic oxidation device passes through the air inlet of the 4th piping connection activated carbon adsorption device, the exhaust outlet of activated carbon adsorption device is provided with the first exhaust blower, the exhaust outlet of photocatalytic oxidation device is provided with the second exhaust blower.The utility model, which is realized, implements effectively purification to the exhaust gas of various concentration, effectively reduces the VOCs content in exhaust gas, realizes exhaust gas qualified discharge.
Description
Technical field
The utility model relates to technical field of waste gas treatment more particularly to a kind of VOCs organic waste gas treatment devices.
Background technique
VOCs, that is, volatile organic matter contains in the exhaust gas of printing, spray painting and numerous industries discharges such as petrochemical industry
A large amount of VOCs must carry out purified treatment before discharging, otherwise can seriously pollute atmosphere.The common side of purification of organic exhaust gas at present
Method includes active carbon adsorption, low-temperature plasma method, photocatalytic oxidation, bioanalysis and combustion method, wherein active carbon adsorption
Pollutant can only be shifted rather than be cleared up, easily cause secondary pollution, low-temperature plasma method, photocatalytic oxidation, biology
Though method and combustion method can clear up pollutant, its rate of slaking and degree of purification are influenced by external conditions such as exhaust gas concentrations
Larger, whether the exhaust gas for purifying completion, which can reach discharge standard, is not easy control, brings a lot of trouble to plant produced.
Utility model content
The purpose of this utility model is to provide a kind of VOCs organic waste gas treatment devices, can be to the exhaust gas of various concentration
Implement effectively purification, effectively reduce the VOCs content in exhaust gas, realizes exhaust gas qualified discharge.
In order to achieve the above purposes, the technical solution adopted by the utility model is:
A kind of VOCs organic waste gas treatment device, including dust filter unit, spray purification tower, VOCs concentration monitor, work
Property charcoal adsorbent equipment, photocatalytic oxidation device and control device, the gas outlet of the dust filter unit connects spray purification tower
Air inlet, the gas outlet of spray purification tower is connected with exhaust pipe, and VOCs concentration monitor is connected on exhaust pipe, and active carbon is inhaled
Air inlet, gas outlet and exhaust outlet are provided on adsorption device and photocatalytic oxidation device, the end of exhaust pipe passes through the first pipe
Road connects the air inlet of activated carbon adsorption device, is provided with the first electric control valve on the first pipeline, and the end of exhaust pipe passes through the
The air inlet of two piping connection photocatalytic oxidation devices is provided with the second electric control valve, activated carbon adsorption device on the second pipeline
Gas outlet by the air inlet of third piping connection photocatalytic oxidation device, be provided with third electric control valve on third pipeline,
The gas outlet of photocatalytic oxidation device passes through the air inlet of the 4th piping connection activated carbon adsorption device, is provided on the 4th pipeline
4th electric control valve, the exhaust outlet of activated carbon adsorption device are provided with the first exhaust blower, and the exhaust outlet of photocatalytic oxidation device is set
It is equipped with the second exhaust blower, the signal input part of the signal output end connection control device of VOCs concentration monitor, the first electrically-controlled valve
Door, the second electric control valve, third electric control valve, the 4th electric control valve, the first exhaust blower and the second exhaust blower signal input part
Connect the signal output end of control device.
The photocatalytic oxidation device includes closed case, is provided with multilayer insulating panel in closed case from bottom to top, often
Venthole is formed between one end of layer partition and the side wall of closed case, the venthole of adjacent two layers is respectively close to the two of closed case
Opposing sidewalls are provided with ultraviolet radiator and photochemical catalyst on every layer of partition.
The photochemical catalyst uses photocatalyst of titanium dioxide net, and photocatalyst of titanium dioxide net inclines on partition in fold-line-shaped
Tiltedly setting, the bending place of the ultraviolet radiator face photocatalyst of titanium dioxide net.
Multilayer activated carbon adsorption plate is provided in the activated carbon adsorption device from bottom to top.
The dust filter unit uses bag filter.
The inside of the spray purification tower is layered is provided with spray section and demisting section from bottom to top.
The demisting section is provided with tubular demister.
The utility model tentatively filters out the solid matter in exhaust gas using dust filter unit, avoids consequent activities charcoal
Adsorbent equipment and photocatalytic oxidation device are blocked or pollution, influences waste gas purification effect；The utility model utilizes spray cleaning
Tower further removes the fine particle in removing exhaust gas, while reducing exhaust gas temperature, guarantees that exhaust gas enters activated carbon adsorption device and light
It can be purified by high efficient and reliable after catalytic oxidizing equipment；
The utility model controls the net of exhaust gas according to VOCs concentration using the VOCs in VOCs concentration monitor detection exhaust gas
Change process, when the VOCs excessive concentration in exhaust gas, first with activated carbon adsorption device absorbed portion VOCs, then utilizes light
Catalytic oxidizing equipment degradation residue VOCs；When the VOCs concentration in exhaust gas is relatively low, directly degraded using photocatalytic oxidation device
Then VOCs utilizes activated carbon adsorption device absorption residual VOCs；The utility model both can guarantee that highly concentrated exhaust gas was filled
Divide purification, and the service life of active carbon can be extended as far as possible, realizes waste gas purification clean and environmental protection and high reliability.
Preferably, the photocatalytic oxidation device of the utility model makes exhaust gas by the way that partition is arranged in closed case
It circulates in closed case along continuous S type flow channel, comes into full contact with VOCs with photodissociation component, extend VOCs and carry out light
The time for solving reaction, substantially increase the degradation rate of VOCs.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of the activated carbon adsorption device；
Fig. 3 is the structural schematic diagram of the photocatalytic oxidation device.
Specific embodiment
As shown in Figure 1, a kind of VOCs organic waste gas treatment device described in the utility model, including dust filter unit 1, spray
Drench purifying column 2, VOCs concentration monitor 3, activated carbon adsorption device 4, photocatalytic oxidation device 5 and control device.Dust-filtering
The air inlet of the gas outlet connection spray purification tower 2 of device 1, the gas outlet of spray purification tower 2 is connected with exhaust pipe 6, VOCs concentration
Monitor 3 is connected on exhaust pipe 6, the signal input part of the signal output end connection control device of VOCs concentration monitor 3.It is useless
Gas enters dust filter unit 1 and is discharged after preliminary dust removal, into spray purification tower 2 in through water mist further remove particle, together
Shi Shuiqi carries out heat exchange and realizes exhaust gas cooling, the exhaust gas being discharged in 3 real-time detection spray purification tower 2 of VOCs concentration monitor
Concentration, and detection data is sent to control device.
Dust filter unit 1 uses bag filter in the present embodiment, being capable of the efficient biggish solid-state of partial size in eliminating waste gas
Substance；Layering is provided with spray section 7 and demisting section 8 from bottom to top in spray purification tower 2, and spray section 7 is followed by water pump and water tank
Ring connection, to spray column lower spray water mist, demisting section 8 is provided with tubular demister, exhaust gas in spray purification tower 2 from lower and
Then upper flowing is dried by washing away fine particles when spray section 7 while cooling down through 8 demisting of demisting section, subsequently enter subsequent net
Change process.
Be provided on the activated carbon adsorption device 4 and photocatalytic oxidation device 5 of the utility model air inlet, gas outlet and
Exhaust outlet, the end of exhaust pipe 6 are connected the air inlet 41 of activated carbon adsorption device by the first pipeline 9, are arranged on the first pipeline 9
There is the first electric control valve 10, the end of exhaust pipe 6 connects the air inlet 51 of photocatalytic oxidation device by the second pipeline 11, and second
The second electric control valve 12 is provided on pipeline 11, the gas outlet 42 of activated carbon adsorption device connects photocatalysis by third pipeline 13
The air inlet 51 of oxidation unit is provided with third electric control valve 14, the gas outlet 52 of photocatalytic oxidation device on third pipeline 13
The air inlet 41 of activated carbon adsorption device is connected by the 4th pipeline 15, is provided with the 4th electric control valve 16 on the 4th pipeline 15,
The exhaust outlet 43 of activated carbon adsorption device is provided with the first exhaust blower 17, and the exhaust outlet 53 of photocatalytic oxidation device is provided with second
Exhaust blower 18, the first electric control valve 10, the second electric control valve 12, third electric control valve 14, the 4th electric control valve 16, the first air draft
Machine 17 connects the signal output end of control device with the signal input part of the second exhaust blower 18.
When VOCs concentration monitor 3 detects the VOCs excessive concentration in exhaust gas, control device controls the first electrically-controlled valve
Door 10, third electric control valve 14 and the second exhaust blower 18 are opened, then exhaust gas passes through the first pipeline 9 first and fills into activated carbon adsorption
4 are set, after tentatively adsorbing and reducing VOCs concentration, photocatalytic oxidation device 5 is entered by third pipeline 13, it is net by photodissociation
It is discharged after change by the second exhaust blower 18；When VOCs concentration monitor 3 detects that the VOCs concentration in exhaust gas is lower, control
Device controls the second electric control valve 12, the 4th electric control valve 16 and the first exhaust blower 17 and opens, then exhaust gas passes through the second pipe first
Road 11 enters photocatalytic oxidation device 5, enters activated carbon adsorption device 4 by the 4th pipeline 15 after photodissociation purifies, by activity
Charcoal adsorbs remaining VOCs in exhaust gas, discharges finally by the first exhaust blower 17.
When the VOCs concentration of the utility model in the offgas is higher, activated carbon adsorption part VOCs is used first, is reduced useless
Gas concentration, then degraded by the way of photochemical catalytic oxidation remaining VOCs, avoid photodissociation component because exhaust gas concentration is too high can not be into
Row normal reaction fully ensures that exhaust gas is effectively purified；When the VOCs concentration in exhaust gas is lower, photodissociation component is directlyed adopt
It degrades, converts CO for VOCs2And H2The nontoxic substance such as O, clean and environmental protection, then with the remaining VOCs of activated carbon adsorption,
The service life of active carbon is extended, secondary pollution is reduced.
Multilayer activated carbon adsorption plate 19 is provided in the present embodiment in activated carbon adsorption device 4 from bottom to top, such as Fig. 2 institute
Show.Photocatalytic oxidation device 5 includes closed case 20, is provided with multilayer insulating panel 21 in closed case 20 from bottom to top, every layer every
Venthole 22 is formed between one end of plate 21 and the side wall of closed case 20, the venthole 22 of adjacent two layers is respectively close to closed case
20 two opposite side walls, ultraviolet radiator 23 and photochemical catalyst 24 are provided on every layer of partition 21, and photochemical catalyst 24 uses dioxy
Change titanium photocatalyst net, is obliquely installed on partition 21 in fold-line-shaped, ultraviolet radiator 23 is arranged at intervals on partition 21, face dioxy
Change the bending place of titanium photocatalyst net.As shown in Figure 3.Exhaust gas, which enters after closed case 20, to circulate through venthole 22 along S type path, according to
Secondary ultraviolet radiator 23 and photochemical catalyst 24 by every layer of partition 21, ultraviolet radiator 23 irradiate photochemical catalyst 24 and generate high energy grain
Son makes the water of surrounding and oxygen generate hydroxyl radical free radical (OH-) and Superoxide anion free radical (O2 -、0-) etc. oxidants, oxidant
VOCs is degraded to CO2And H2The nontoxic substance such as O, realizes the Cress of exhaust gas.
The working principle of the utility model is: exhaust gas, which initially enters, carries out preliminary dust removal in dust filter unit 1, subsequently into
Spray purification tower 2 further removes particle and is discharged after completing cooling, when VOCs concentration monitor 3 detects VOCs excessive concentration
When, control device controls the first electric control valve 10, third electric control valve 14 and the second exhaust blower 18 are opened, and exhaust gas passes through the first
One pipeline 9 enters activated carbon adsorption device 4, after tentatively adsorbing and reducing VOCs concentration, enters light by third pipeline 13
Catalytic oxidizing equipment 5 is discharged after photodissociation purifies by the second exhaust blower 18；When VOCs concentration monitor 3 detects
When VOCs concentration is lower, control device controls the second electric control valve 12, the 4th electric control valve 16 and the first exhaust blower 17 and opens, then
Exhaust gas passes through the second pipeline 11 first and enters photocatalytic oxidation device 5, enters activity by the 4th pipeline 15 after photodissociation purifies
Charcoal adsorbent equipment 4 is discharged by remaining VOCs in activated carbon adsorption exhaust gas finally by the first exhaust blower 17.This is practical
Novel realize implements effectively purification to the exhaust gas of various concentration, effectively reduces the VOCs content in exhaust gas, realizes that exhaust gas is up to standard
Discharge.
Claims (7)
1. a kind of VOCs organic waste gas treatment device, it is characterised in that: including dust filter unit, spray purification tower, VOCs concentration
The gas outlet of monitor, activated carbon adsorption device, photocatalytic oxidation device and control device, the dust filter unit connects spray
The air inlet of purifying column is drenched, the gas outlet of spray purification tower is connected with exhaust pipe, and VOCs concentration monitor is connected on exhaust pipe,
Air inlet, gas outlet and exhaust outlet are provided on activated carbon adsorption device and photocatalytic oxidation device, the end of exhaust pipe is logical
The air inlet of the first piping connection activated carbon adsorption device is crossed, the first electric control valve, the end of exhaust pipe are provided on the first pipeline
End passes through the air inlet of the second piping connection photocatalytic oxidation device, is provided with the second electric control valve, active carbon on the second pipeline
The gas outlet of adsorbent equipment passes through the air inlet of third piping connection photocatalytic oxidation device, and third electricity is provided on third pipeline
Valve is controlled, the gas outlet of photocatalytic oxidation device passes through the air inlet of the 4th piping connection activated carbon adsorption device, the 4th pipeline
On be provided with the 4th electric control valve, the exhaust outlet of activated carbon adsorption device is provided with the first exhaust blower, photocatalytic oxidation device
Exhaust outlet is provided with the second exhaust blower, and the signal output end of VOCs concentration monitor connects the signal input part of control device, the
One electric control valve, the second electric control valve, third electric control valve, the 4th electric control valve, the first exhaust blower and the second exhaust blower letter
The signal output end of number input terminal connection control device.
2. a kind of VOCs organic waste gas treatment device according to claim 1, it is characterised in that: the photochemical catalytic oxidation
Device includes closed case, is provided with multilayer insulating panel in closed case from bottom to top, one end of every layer of partition and closed case
Form venthole between side wall, the ventholes of adjacent two layers is all provided on every layer of partition respectively close to the two opposite side walls of closed case
It is equipped with ultraviolet radiator and photochemical catalyst.
3. a kind of VOCs organic waste gas treatment device according to claim 2, it is characterised in that: the photochemical catalyst is adopted
With photocatalyst of titanium dioxide net, photocatalyst of titanium dioxide net is obliquely installed on partition in fold-line-shaped, and the ultraviolet radiator is just
To the bending place of photocatalyst of titanium dioxide net.
4. a kind of VOCs organic waste gas treatment device according to claim 3, it is characterised in that: the activated carbon adsorption
Multilayer activated carbon adsorption plate is provided in device from bottom to top.
5. a kind of VOCs organic waste gas treatment device according to claim 4, it is characterised in that: the dust filter unit
Using bag filter.
6. a kind of VOCs organic waste gas treatment device according to claim 5, it is characterised in that: the spray purification tower
Inside be layered be provided with spray section and demisting section from bottom to top.
7. a kind of VOCs organic waste gas treatment device according to claim 6, it is characterised in that: the demisting section setting
There is tubular demister.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821904711.1U CN209333527U (en) | 2018-11-19 | 2018-11-19 | A kind of VOCs organic waste gas treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821904711.1U CN209333527U (en) | 2018-11-19 | 2018-11-19 | A kind of VOCs organic waste gas treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209333527U true CN209333527U (en) | 2019-09-03 |
Family
ID=67748627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821904711.1U Expired - Fee Related CN209333527U (en) | 2018-11-19 | 2018-11-19 | A kind of VOCs organic waste gas treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209333527U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112121549A (en) * | 2020-09-25 | 2020-12-25 | 李琰 | VOC exhaust pollution treatment system |
| CN112121594A (en) * | 2020-09-28 | 2020-12-25 | 山东彬伟装饰材料有限公司 | VOCS's device is handled through two-stage active carbon case |
| CN112619375A (en) * | 2020-12-02 | 2021-04-09 | 中交二公局第三工程有限公司 | Closed dust absorption exhaust treatment system of pitch mix building |
| CN112691500A (en) * | 2020-12-25 | 2021-04-23 | 合肥学院 | Industrial VOCs waste gas purification tower |
| CN114870536A (en) * | 2022-06-13 | 2022-08-09 | 安徽天成新材料有限公司 | A kind of production waste gas treatment system for ethyl acetoacetate |
| CN116651134A (en) * | 2023-05-29 | 2023-08-29 | 福建钰融科技有限公司 | A timely treatment device for odor gas in NMP waste liquid storage bin |
| CN116651134B (en) * | 2023-05-29 | 2026-02-10 | 福建钰融科技有限公司 | A device for timely treatment of odorous gases from an NMP waste liquid storage tank. |
-
2018
- 2018-11-19 CN CN201821904711.1U patent/CN209333527U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112121549A (en) * | 2020-09-25 | 2020-12-25 | 李琰 | VOC exhaust pollution treatment system |
| CN112121594A (en) * | 2020-09-28 | 2020-12-25 | 山东彬伟装饰材料有限公司 | VOCS's device is handled through two-stage active carbon case |
| CN112619375A (en) * | 2020-12-02 | 2021-04-09 | 中交二公局第三工程有限公司 | Closed dust absorption exhaust treatment system of pitch mix building |
| CN112691500A (en) * | 2020-12-25 | 2021-04-23 | 合肥学院 | Industrial VOCs waste gas purification tower |
| CN114870536A (en) * | 2022-06-13 | 2022-08-09 | 安徽天成新材料有限公司 | A kind of production waste gas treatment system for ethyl acetoacetate |
| CN116651134A (en) * | 2023-05-29 | 2023-08-29 | 福建钰融科技有限公司 | A timely treatment device for odor gas in NMP waste liquid storage bin |
| CN116651134B (en) * | 2023-05-29 | 2026-02-10 | 福建钰融科技有限公司 | A device for timely treatment of odorous gases from an NMP waste liquid storage tank. |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190903 Termination date: 20201119 |
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| CF01 | Termination of patent right due to non-payment of annual fee |