CN110027317A - Aqueous ink print air circulation system and VOC discharge-reducing method - Google Patents
Aqueous ink print air circulation system and VOC discharge-reducing method Download PDFInfo
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- CN110027317A CN110027317A CN201910371344.6A CN201910371344A CN110027317A CN 110027317 A CN110027317 A CN 110027317A CN 201910371344 A CN201910371344 A CN 201910371344A CN 110027317 A CN110027317 A CN 110027317A
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- dehumidification
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0033—Other features
- B01D5/0054—General arrangements, e.g. flow sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0057—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes
- B01D5/0075—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes with heat exchanging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0078—Condensation of vapours; Recovering volatile solvents by condensation characterised by auxiliary systems or arrangements
- B01D5/009—Collecting, removing and/or treatment of the condensate
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- 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
- B01D53/002—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 condensation
-
- 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
- B01D53/26—Drying gases or vapours
- B01D53/265—Drying gases or vapours by refrigeration (condensation)
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
- B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
- B41F23/0403—Drying webs
- B41F23/0423—Drying webs by convection
- B41F23/0426—Drying webs by convection using heated air
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
- B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
- B41F23/044—Drying sheets, e.g. between two printing stations
- B41F23/0463—Drying sheets, e.g. between two printing stations by convection
- B41F23/0466—Drying sheets, e.g. between two printing stations by convection by using heated air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/80—Water
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- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
Abstract
The present invention relates to a kind of aqueous ink print air circulation systems, including press oven system, heat exchanger, dehumidification by condensation machine；The outlet of the press oven system, the first heat exchanger channels of heat exchanger, dehumidification by condensation machine, heat exchanger the second heat exchanger channels, press oven system import, be sequentially connected, formed a closed circulation；The closed circulation is equipped with an at least aerodynamic device.Whole system of the present invention is closed circulatory system, the discharge of VOC free s during whole service；Facility structure is simple, easy to implement, and monitoring is convenient, is conducive to promote and apply on aqueous ink print；The effective recycling thermal energy of press oven system, while also realizing and being cooled down in advance to entering the air before dehumidification by condensation machine, the efficiency of dehumidification by condensation machine is improved, it is ingenious in design.
Description
Technical field
The present invention relates to the VOC emission reduction schedules in a kind of aqueous ink print, and in particular to a kind of aqueous ink print air (tail
Gas) circulatory system and VOC discharge-reducing method.
Background technique
Stage now, water-based ink will replace traditional solvent-based ink (mixed solvent based on esters), be applied to
Plastic printing still acquires a certain degree of difficulty.Since the rate of drying of water is very slow, the water-based ink using 100% water is can not
Meet the condition of ink setting in high speed printing.So the left side 20%-40% can be added in aqueous ink manufacturer in ink formulations
Right ethyl alcohol, moreover, needing diluent to be added, and in printing process with water: the proportion of ethyl alcohol=5:5 or 4:6.Institute
Addition with, ethyl alcohol is exactly to adjust rate of drying of the water-based ink in printing process with this.It is indispensable at present add
Addition point.Ethyl alcohol is one of the VOCs for belonging to national regulation requirement processing, direct emission is unable to, so must handle.Mesh
It is preceding in the prior art, there are no provide the ethyl alcohol being discharged in aqueous ink printing process, and scheme is effectively treated.Existing solvent returns
Receipts system is directed to benzene class or esters solvent, and using rectifying, the methods of extraction, energy consumption is high, and effect is also poor.Existing combustion
The processing VOCs method for burning gas recovery is also not suitable for water-based ink, because the concentration of alcohol of ink printing discharge is low, it is difficult to
Burning, and if insufficient meeting of burning if 3.3%-19% range of concentrations can even set off an explosion.
Ethyl alcohol can be given off when printing in intaglio printing, adagio printing process using water-based ink, since ethyl alcohol belongs to
The VOCs of national regulation is handled, so must handle ethyl alcohol, is unable to direct emission.
Publication No. CN107398145A, publication date are that the Chinese patent literature on November 28th, 2017 discloses a kind of water
Property ink printing baking oven ethyl alcohol recycle and VOC emission-reducing system and method, using absorption tower circulated sprinkling to recycle ethyl alcohol.The party
In case, although water spray is able to achieve the purpose of the alcohol in removal air, but have apparent increase for the humidity of air, and
It is dry gas into the api request in baking oven system, so, the mistake of implementation larger for the difficulty of subsequent desiccant dehumidification
Monitoring difficulty is larger in journey, and furthermore equipment volume, cost are higher, are unfavorable for promoting and applying.
Summary of the invention
The object of the present invention is to provide a kind of aqueous ink print air circulation system, whole system is enclosed circulation system
System, the discharge of VOC free s during whole service, and facility structure is simple, easy to implement, monitoring is convenient, is conducive to promote and apply
On aqueous ink print.
The present invention takes following technical scheme:
A kind of aqueous ink print air circulation system, including press oven system 1, heat exchanger 2, dehumidification by condensation machine 3；
The outlet of the press oven system 1, the first heat exchanger channels of heat exchanger 2, dehumidification by condensation machine 3, heat exchanger 2 second
The import of heat exchanger channels, press oven system 1, is sequentially connected, and forms a closed circulation；The closed circulation is equipped at least
One aerodynamic device.
The essential core of this programme be allow printing machine baking oven system air intake and air outlet be respectively connected to dehumidification by condensation
The outlet air end and wind inlet section of machine, main thought is: low temperature dry air of the dehumidification by condensation machine after dehumidifying passes through heat exchange series
Enter the drying for the print film that baking oven system participates in after ink printing, gas of the baking oven system by high temperature and humidity containing ethyl alcohol after system heating
Body is discharged into heat-exchange system cooling, and subsequently into machine wet at condensation, the mixed gas for the ethanol water being rapidly cooled is low
It will be condensed into the mixed liquor of ethanol water under temperature state, benefit can be recycled due to the diluent of ink after the recycling of this part mixed liquor
With.Whole system is closed cycle, the discharge of VOC free s.And water and alcohol can be recycled, reach circular economy really
Purpose.
Further, the aerodynamic device is air pump.
Further, the forward and backward side of dehumidification by condensation machine, the first heat exchanger channels of heat exchanger 2, the second heat exchanger channels are respectively
Front and back side, the import and export of baking oven system 1 is equipped with temperature monitoring device, the temperature monitoring device and control system signal
Connection, the control system are connect with the controller signals of the aerodynamic device, dehumidification by condensation machine.
Further, the dehumidification by condensation machine 3 have liquid collecting end, the liquid collecting end be channel or container, it is molten to spirituosity
Liquid is recycled.A kind of aqueous ink print air circulation VOC discharge-reducing method is arranged a closed gas-circulating system, makes to print
The alcoholic high-temperature gas that machine baking oven system 1 comes out is changed at heat exchanger 2 with the cryogenic gas through dehumidification by condensation machine
On the one hand heat improves the temperature for entering gas in press oven system 1, the gas before being on the other hand lowered into dehumidification by condensation machine
Temperature；The alcoholic solution in gas is condensed in dehumidification by condensation machine and collects recycling simultaneously.
Further, in the forward and backward side of dehumidification by condensation machine, the first heat exchanger channels, the second heat exchanger channels of heat exchanger 2 are each
From front and back side, the import and export of baking oven system 1 is all provided with setting temperature monitoring point, and control system monitors above-mentioned each temperature prison automatically
The temperature of measuring point, to automatically control the power of dehumidification by condensation machine and the function of the aerodynamic device in gas-circulating system
Rate.
Further, under control system monitoring, make to enter press oven system 1 by the dry air of heat exchange
Preceding temperature is close to 30 DEG C；Temperature into the spirituosity of heat exchanger 2, water post gas is close to 70 DEG C；By exchanging heat,
Leaving heat exchanger 2 to enter the temperature of dehumidification by condensation machine is 40 DEG C；Gas temperature after dehumidification by condensation machine is dry is 10 DEG C.
Further, the maximum quantity of wind of the dehumidification by condensation machine (3) is slightly larger than the maximum quantity of wind of printing machine, and according to explosion-proof
It is required that manufacture.
The beneficial effects of the present invention are:
1) whole system is closed circulatory system, the discharge of VOC free s during whole service；Facility structure is simple, real
It applies conveniently, monitoring is convenient, is conducive to promote and apply on aqueous ink print.
2) this equipment and technique are improved or aqueous ink will be helped to obtain wider popularization, really solve from source
The emission problem of VOCs.
3) the effective recycling thermal energy of press oven system, while also realizing to entering the sky before dehumidification by condensation machine
Gas is cooled down in advance, improves the efficiency of dehumidification by condensation machine, ingenious in design.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the aqueous ink print air circulation system of the present invention.
In figure, 1. press oven systems, 2. heat exchangers, 3. dehumidification by condensation machines；Although wherein press oven system
Upper and lower two parts are with different Filling patterns has been used, this practical two parts are connections, and there is no specific boundary, diagrams
It is intended only as illustrating.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and specific examples.
Referring to Fig. 1, a kind of aqueous ink print air circulation system, including press oven system 1, heat exchanger 2, condensation
Dehumidifier 3；The outlet of the press oven system 1, the first heat exchanger channels of heat exchanger 2, dehumidification by condensation machine 3, heat exchange
The import of the second heat exchanger channels, press oven system 1 of device 2, is sequentially connected, and forms a closed circulation；The closed circulation
It is equipped with an at least aerodynamic device.
In this embodiment, the aerodynamic device is air pump.It is not shown in attached drawing.The air pump is that printing machine dries
Case system itself carries air pump and dehumidification by condensation machine system carries effective supplement of air pump, if baking oven system and condensation remove
The air pump of wet machine system can complete the normal air flow of the entire circulatory system, then the gas air pump inoperative.
In this embodiment, the forward and backward side of dehumidification by condensation machine, the first heat exchanger channels, the second heat exchanger channels of heat exchanger 2
Respective front and back side, the import and export of baking oven system 1 are equipped with temperature monitoring device, the temperature monitoring device and control system
Signal connection, the control system are connect with the controller signals of the aerodynamic device, dehumidification by condensation machine.In attached drawing not into
Row is shown.
In this embodiment, the dehumidification by condensation machine 3 has liquid collecting end, and the liquid collecting end is channel or container, to containing wine
Smart solution is recycled.It is not shown in attached drawing.
In this embodiment, referring to Fig. 1, the press oven system 1 is also connect with ink in printing press feedway.
A kind of aqueous ink print air circulation VOC discharge-reducing method, the essential core of this method are to allow the baking oven system of printing machine
The air intake and air outlet of system are respectively connected to the outlet air end and wind inlet section of dehumidification by condensation machine, and main thought is: dehumidification by condensation machine warp
Low temperature dry air after crossing dehumidifying enters baking oven system and participates in the print film after ink printing after heating up by heat-exchange system
Drying, gas of the baking oven system by high temperature and humidity containing ethyl alcohol be discharged into heat-exchange system cooling, subsequently into wet at condensation
Machine, the mixed gas for the ethanol water being rapidly cooled will be condensed into the mixed liquor of ethanol water, the mixing of this part under low-temperature condition
It can be recycled due to the diluent of ink after liquid recycling.Whole system is closed cycle, the discharge of VOC free s.And it can follow
Ring utilizes water and alcohol, achievees the purpose that circular economy really.
When this method is implemented, specifically includes the following steps: one closed gas-circulating system of setting, makes press oven system
The alcoholic high-temperature gas that system 1 comes out exchanges heat at heat exchanger 2 with the cryogenic gas through dehumidification by condensation machine, on the one hand
Improve the temperature for entering gas in press oven system 1, the gas temperature before being on the other hand lowered into dehumidification by condensation machine；Together
When the alcoholic solution in gas is condensed in dehumidification by condensation machine and collects recycling.
As a preferred option, in the forward and backward side of dehumidification by condensation machine, the first heat exchanger channels of heat exchanger 2, the second heat exchange
The respective front and back side in channel, the import and export of baking oven system 1 are all provided with setting temperature monitoring point, and control system monitors above-mentioned each automatically
The temperature of temperature monitoring point, to automatically control the power of dehumidification by condensation machine and the aerodynamic force dress in gas-circulating system
The power set.
Make to enter printing by the dry air of heat exchange under control system monitoring as further preferred scheme
Temperature before machine baking oven system 1 is close to 30 DEG C；Temperature into the spirituosity of heat exchanger 2, water post gas is close to 70
℃；By heat exchange, leaving heat exchanger 2 to enter the temperature of dehumidification by condensation machine is 40 DEG C；Gas after dehumidification by condensation machine is dry
Temperature is 10 DEG C.
Core of the invention is using dehumidification by condensation machine, heat-exchange system, in the ethanol water mixing of printing baking oven discharge
Closed cycle is generated between gas and baking oven air inlet, does not generate the discharge of VOCs；Utilize the good compatibility of water and ethyl alcohol, high temperature
Liquefaction is the alcohol blend of certain concentration after the ethyl alcohol water mixed gas of high humidity enters dehumidification by condensation machine, can be recycling in water
The addition of property ink diluent.
The maximum quantity of wind of dehumidifier is slightly larger than the maximum quantity of wind of printing machine.And it is manufactured according to requirement of explosion proof.
Present invention is generally directed to the processing of tail gas (ethyl alcohol) in aqueous ink print brush, use with previous solvent borne ink
The method of RTO burning or recycling is all entirely different.And accomplished that reduction VOCs is discharged simultaneously, ethyl alcohol is recycled, and provide
The design scheme of relevant device.
It is the preferred embodiment of the present invention above, those of ordinary skill in the art can also carry out various changes on this basis
It changes or improves, under the premise of not departing from the present invention total design, these transformation or improve all should belong to that the present invention claims guarantors
Within the scope of shield.
Claims (8)
1. a kind of aqueous ink print air circulation system, it is characterised in that:
Including press oven system (1), heat exchanger (2), dehumidification by condensation machine (3)；
The outlet of the press oven system (1), the first heat exchanger channels of heat exchanger (2), dehumidification by condensation machine (3), heat are handed over
The import of the second heat exchanger channels, press oven system (1) of parallel operation (2), is sequentially connected, and forms a closed circulation；The envelope
Closed loop is equipped with an at least aerodynamic device.
2. aqueous ink print air circulation system as described in claim 1, it is characterised in that: the aerodynamic device is gas
Pump.
3. aqueous ink print air circulation system as described in claim 1, it is characterised in that: the forward and backward side of dehumidification by condensation machine,
The respective front and back side of the first heat exchanger channels, the second heat exchanger channels of heat exchanger (2), the import and export of baking oven system (1) are equipped with
Temperature monitoring device, the temperature monitoring device are connect with control system signal, and the control system and the aerodynamic force fill
It sets, the connection of the controller signals of dehumidification by condensation machine.
4. aqueous ink print air circulation system as described in claim 1, it is characterised in that: dehumidification by condensation machine (3) tool
There is liquid collecting end, the liquid collecting end is channel or container, is recycled to spirituosity solution.
5. a kind of aqueous ink print air circulation VOC discharge-reducing method, it is characterised in that: one closed gas-circulating system of setting,
Make the alcoholic high-temperature gas of press oven system (1) out at heat exchanger (2) and the low temperature through dehumidification by condensation machine
Gas exchanges heat, and on the one hand improves the temperature for entering gas in press oven system (1), is on the other hand lowered into condensation
Gas temperature before dehumidifier；The alcoholic solution in gas is condensed in dehumidification by condensation machine and collects recycling simultaneously.
6. aqueous ink print air circulation VOC discharge-reducing method as described in claim 1, it is characterised in that: in dehumidification by condensation machine
Forward and backward side, the respective front and back side of the first heat exchanger channels, the second heat exchanger channels of heat exchanger (2), baking oven system (1) into,
Outlet is all provided with setting temperature monitoring point, and control system monitors the temperature of above-mentioned each temperature monitoring point automatically, to automatically control cold
The power of solidifying dehumidifier and the power of the aerodynamic device in gas-circulating system.
7. aqueous ink print air circulation VOC discharge-reducing method as claimed in claim 7, it is characterised in that: supervised in control system
Under control, the temperature before making to enter by the dry air of heat exchange press oven system (1) is close to 30 DEG C；Into heat exchange
The spirituosity of device (2), the temperature of water post gas are close to 70 DEG C；By heat exchange, heat exchanger (2) are left into dehumidification by condensation
The temperature of machine is 40 DEG C；Gas temperature after dehumidification by condensation machine is dry is 10 DEG C.
8. aqueous ink print air circulation VOC discharge-reducing method as claimed in claim 7, it is characterised in that: the dehumidification by condensation
The maximum quantity of wind of machine (3) is slightly larger than the maximum quantity of wind of printing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910371344.6A CN110027317A (en) | 2019-05-06 | 2019-05-06 | Aqueous ink print air circulation system and VOC discharge-reducing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910371344.6A CN110027317A (en) | 2019-05-06 | 2019-05-06 | Aqueous ink print air circulation system and VOC discharge-reducing method |
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| Publication Number | Publication Date |
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| CN110027317A true CN110027317A (en) | 2019-07-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910371344.6A Pending CN110027317A (en) | 2019-05-06 | 2019-05-06 | Aqueous ink print air circulation system and VOC discharge-reducing method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110339985A (en) * | 2019-08-09 | 2019-10-18 | 天津市瑞通恒达环保技术有限公司 | The circulating coater oven aqueous solvent coating heat recovery system of return air and operation method |
| CN111482054A (en) * | 2020-04-23 | 2020-08-04 | 山东德曦环境科技有限公司 | Method for controlling decrement and oxidation of volatile organic compound, system and application thereof |
| CN113028757A (en) * | 2021-05-11 | 2021-06-25 | 郑州义兴彩印有限公司 | Energy-concerving and environment-protective type water-based ink printing high-efficient drying system |
| CN113028756A (en) * | 2021-05-11 | 2021-06-25 | 郑州义兴彩印有限公司 | Energy-concerving and environment-protective type water-based ink printing drying system |
| CN115400556A (en) * | 2022-08-23 | 2022-11-29 | 广州锦创环境科技有限公司 | Water-based ink drying and alcohol recovery system |
| CN116550111A (en) * | 2023-06-08 | 2023-08-08 | 郑州义兴彩印有限公司 | Water-based ink printing waste gas treatment recovery system |
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| CN205097686U (en) * | 2015-10-28 | 2016-03-23 | 谢继雄 | Energy -conserving stoving heating device who is applied to gravure press and answers a pager's call futilely |
| CN107051100A (en) * | 2015-11-24 | 2017-08-18 | 株式会社西部技研 | Drying device |
| CN108296143A (en) * | 2017-12-15 | 2018-07-20 | 陕西北人印刷机械有限责任公司 | A kind of efficient cryogenic drying system of water based paint |
| CN207808750U (en) * | 2017-11-03 | 2018-09-04 | 陈彦斌 | A kind of tandem Analysis of Heat Pump Drying System applied in intaglio press |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205097686U (en) * | 2015-10-28 | 2016-03-23 | 谢继雄 | Energy -conserving stoving heating device who is applied to gravure press and answers a pager's call futilely |
| CN107051100A (en) * | 2015-11-24 | 2017-08-18 | 株式会社西部技研 | Drying device |
| CN207808750U (en) * | 2017-11-03 | 2018-09-04 | 陈彦斌 | A kind of tandem Analysis of Heat Pump Drying System applied in intaglio press |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110339985A (en) * | 2019-08-09 | 2019-10-18 | 天津市瑞通恒达环保技术有限公司 | The circulating coater oven aqueous solvent coating heat recovery system of return air and operation method |
| CN111482054A (en) * | 2020-04-23 | 2020-08-04 | 山东德曦环境科技有限公司 | Method for controlling decrement and oxidation of volatile organic compound, system and application thereof |
| CN113028757A (en) * | 2021-05-11 | 2021-06-25 | 郑州义兴彩印有限公司 | Energy-concerving and environment-protective type water-based ink printing high-efficient drying system |
| CN113028756A (en) * | 2021-05-11 | 2021-06-25 | 郑州义兴彩印有限公司 | Energy-concerving and environment-protective type water-based ink printing drying system |
| CN115400556A (en) * | 2022-08-23 | 2022-11-29 | 广州锦创环境科技有限公司 | Water-based ink drying and alcohol recovery system |
| CN116550111A (en) * | 2023-06-08 | 2023-08-08 | 郑州义兴彩印有限公司 | Water-based ink printing waste gas treatment recovery system |
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