CN108067083A - A kind of coating complex machine device for recycling exhaust gas - Google Patents
A kind of coating complex machine device for recycling exhaust gas Download PDFInfo
- Publication number
- CN108067083A CN108067083A CN201810071156.7A CN201810071156A CN108067083A CN 108067083 A CN108067083 A CN 108067083A CN 201810071156 A CN201810071156 A CN 201810071156A CN 108067083 A CN108067083 A CN 108067083A
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- China
- Prior art keywords
- exhaust gas
- heat exchanger
- high speed
- complex machine
- exchanger channels
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Links
- 239000011248 coating agent Substances 0.000 title claims abstract description 25
- 238000000576 coating method Methods 0.000 title claims abstract description 25
- 238000004064 recycling Methods 0.000 title claims abstract description 17
- 238000001179 sorption measurement Methods 0.000 claims abstract description 45
- 239000003463 adsorbent Substances 0.000 claims abstract description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 20
- 238000010521 absorption reaction Methods 0.000 claims description 14
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 51
- 239000003960 organic solvent Substances 0.000 description 7
- 239000002904 solvent Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002912 waste gas Substances 0.000 description 3
- 238000004880 explosion Methods 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- B01D53/02—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 adsorption, e.g. preparative gas chromatography
- B01D53/04—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 adsorption, e.g. preparative gas chromatography with stationary adsorbents
-
- 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
- B01D53/02—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 adsorption, e.g. preparative gas chromatography
- B01D53/06—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 adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a kind of coating complex machine device for recycling exhaust gas, including the high speed heat exchanger channels being vertically arranged side by side and low speed sorption channel；The high speed heat exchanger channels include housing, and the housing bottom is provided with exhaust gas entrance so that exhaust gas moves from top to bottom in housing；Four walls are placed with the heat exchanger tube consistent with high speed heat exchanger channels extending direction inside the high speed heat exchanger channels；Identical with high speed heat exchanger channels top at the top of low speed sorption channel, intersection is provided with rotary pre- adsorbent equipment；It is located in the low speed sorption channel below rotary pre- adsorbent equipment and is provided with several adsorption plates laterally set；The low speed heat exchanger channels lower part is provided with net gas outlet；A Heat Room is further included, the tube end is extended into Heat Room；And tube end is connected with several radiating fins；The Heat Room front end is provided with wind turbine, and rear end is connected by air hose with coating complex machine baking oven.
Description
Technical field
The present invention relates to a kind of device for recycling exhaust gas, especially a kind of waste gas recovery for coating complex machine utilizes
Device.
Background technology
Existing coating complex machine generally comprises the portions such as unwinding device, apparatus for coating, set composite, baking oven and wrap-up
Part.Wherein, baking oven is one of most important building block of coating complex machine.
When baking oven is to being coated with the various paperboards of coating material, film when base materials are thermally dried, baking oven discharge
Exhaust gas temperature is very high.If directly being discharged exhaust gas from baking oven without being recycled, a large amount of waste heats will be wasted.If it adopts
High-temp waste gas is directly input to from the entrance of baking oven in baking oven with the mode of interior cycling, although can so make full use of exhaust gas
Waste heat, but when baking oven is to the coating material containing organic solvent and retrograde heat drying, exhaust gas contains a certain amount of volatilization
Property solvent.It can thus make gas in baking oven that volatile solvent concentration be cried out to gradually increase, when reaching critical point, just have explosion
Danger.
The content of the invention
In view of this, the present invention provides a kind of coating complex machine device for recycling exhaust gas, is returned using the mode of heat exchange
Waste-gas heat is received, the volatile solvent in exhaust gas is avoided, which to come back to baking oven, causes volatile solvent concentration in baking oven to increase and send out
It is raw dangerous.
For solution more than technical problem, the technical scheme is that：A kind of coating complex machine device for recycling exhaust gas,
Including the high speed heat exchanger channels being vertically arranged side by side and low speed sorption channel；The high speed heat exchanger channels include housing, the shell
Body bottom is provided with exhaust gas entrance so that exhaust gas moves from top to bottom in housing；Four walls arrangement inside the high speed heat exchanger channels
There is the heat exchanger tube consistent with high speed heat exchanger channels extending direction；It is identical with high speed heat exchanger channels top at the top of low speed sorption channel,
Its intersection is provided with rotary pre- adsorbent equipment；The rotary pre- adsorbent equipment includes horizontally disposed shaft, described turn
Blade is provided on axis, absorption bag is fixed on the blade；It is located at rotary pre- adsorbent equipment in the low speed sorption channel
Lower section be provided with several adsorption plates laterally set, several adsorption plates are staggered；The low speed heat exchanger channels lower part
It is provided with net gas outlet；A Heat Room is further included, the tube end is extended into Heat Room；And tube end connects
It is connected to several radiating fins；The Heat Room front end is provided with wind turbine, and rear end is connected by air hose with coating complex machine baking oven.From
Temperature is also higher in the exhaust gas that baking oven emits, and carries out the efficiency highest of heat exchange at this time.It is but organic molten in exhaust gas at this time
The content of agent also highest if gas can be caused to deposit slowly excessively for gas flow rates so that organic solvent content is cumulative, has
The danger of explosion.So using the lighter principle of hot-air proportion, exhaust gas entrance is arranged on high speed hot switching path bottom, is made
Exhaust gas is obtained to move from bottom to up with most fast speed.Heat exchanger tube is arranged on four walls and consistent with high speed heat exchanger channels extending direction,
The movement of gas is not hindered.It carries out after sufficient heat exchange, it is necessary to which the organic solvent in exhaust gas is removed.The present invention using
By way of adsorbing twice, rotary adsorbent equipment is set in low speed sorption channel and is laterally set adsorption plate passes through
Activated carbon adsorbs organic solvent.In order to improve adsorption efficiency, the movement velocity of exhaust gas is reduced as far as possible, therefore exhaust gas exists
In low speed sorption channel using be from top to bottom by the way of.Although carrying out heat exchange, the proportion of exhaust gas is still smaller.Rotation
Rotatable adsorbent equipment tool is that the organic solvent in exhaust gas is adsorbed in advance first, improves adsorption efficiency there are two effect.Second is that
Blade rotates under the promotion of exhaust gas, and exhaust gas is avoided to flow backwards, and is run for exhaust gas in low speed sorption channel and provide power.It changes
It can be water or freon etc. that heat transferring medium is filled in heat pipe, and principle is all that heat transferring medium is utilized to inhale heat release to carry out hot friendship
It changes.Heat transferring medium heat absorption in the heat exchanger tube of high speed heat exchanger channels is evaporated to gas motion to tube end.Heat exchanger tube
End be located in Heat Room, and be provided with radiating fin.Wind turbine introduces cold air and radiating fin is cooled down so that changes
Thermal medium regelation is back to the heat exchanger tube in high speed heat exchanger channels into liquid.And cold air becomes hot empty after heat exchange
Gas is passed through baking oven secondary use again.
As an improvement the high speed heat exchanger channels and low speed sorption channel intersection are provided with the slow of section triangle
Room is rushed, the rotary pre- adsorbent equipment is arranged in surge chamber.Surge chamber turns to convenient for exhaust gas, and exhaust gas rebound is avoided to drive in the wrong direction.
As an improvement the surge chamber section is right angled triangle, the higher one side of bevel edge is located at low speed absorption
On passage, relatively low one side is located on high speed heat exchanger channels.The effect turned to is improved, also provides installation for rotary adsorbent equipment
Space.
Activated carbon is filled with as a preferred embodiment, being set in the absorption bag, active carbon slab is provided on the adsorption plate.
As an improvement being provided with the string bag on the blade, the absorption bag is positioned in the string bag.It is adsorbed onto certain journey
After degree, the activated carbon of saturation can be replaced, improve adsorption effect.
As a preferred embodiment, being provided with metal grill on the adsorption plate, the activity carbon slab is embedded in metal grill.
It is conveniently replaceable active carbon slab.
As an improvement the net gas outlet is provided with air-introduced machine.Power is provided for exhaust gas downlink, exhaust gas is avoided to return
Stream.
As an improvement if the radiating fin is the dry plate being arranged in parallel, extending direction and Heat Room extension side
To consistent.Reduce air flow resistance, improve heat transfer effect.
As an improvement the heat exchanger tube extends transversely through low speed sorption channel, installed through position less than adsorption plate
Position.Still there is remaining heat by the exhaust gas of high speed heat exchanger channels, so in low speed sorption channel several transverse directions is set to pass through
The heat exchanger tube worn.The purpose laterally set is increase heat exchange area, improves heat transfer effect.Since exhaust gas has been low speed operation,
It need not consider resistance of the heat exchanger tube to it.
As an improvement the Heat Room is arranged on above high speed heat exchanger channels.Convenient for the heat transferring medium in heat exchanger tube
Evaporation and reflux.
The invention has the beneficial effects that：Device for recycling exhaust gas with said structure by heat exchange twice, makes
The waste heat obtained in exhaust gas is recycled again, and will not the organic solvent in exhaust gas be taken back baking oven again.Saving energy
While source, safety in production is also ensured.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is rotary adsorbent equipment schematic diagram.
Fig. 3 is adsorption plate schematic diagram.
It is marked in figure：1 high speed heat exchanger channels, 2 low speed sorption channels, 3 exhaust gas entrances, 4 net gas outlets, 5 heat exchanger tubes, 6 are delayed
Rush room, 7 rotary adsorbent equipments, 8 adsorption plates, 9 air-introduced machines, 10 Heat Rooms, 11 radiating fins, 12 wind turbines, 71 shafts, 72 leaves
Piece, 73 absorption bags, 81 active carbon slabs.
Specific embodiment
In order to which those skilled in the art is made to more fully understand technical scheme, With reference to embodiment
The present invention is described in further detail.
As shown in Figure 1-Figure 3, the present invention includes the high speed heat exchanger channels 1 being vertically arranged side by side and low speed sorption channel 2；Institute
Stating high speed heat exchanger channels 1 includes housing, and the housing bottom is provided with exhaust gas entrance 3 so that exhaust gas is transported from top to bottom in housing
It is dynamic；1 four walls of inside of high speed heat exchanger channels are placed with the heat exchanger tube 5 consistent with high speed heat exchanger channels extending direction；Low speed is inhaled
Attached 2 top of passage is identical with 1 top of high speed heat exchanger channels, and intersection is provided with rotary pre- adsorbent equipment 7；It is described rotary
Pre- adsorbent equipment 7 includes horizontally disposed shaft 71, is provided with blade 72 in the shaft 71, suction is fixed on the blade 72
Attached bag 73；The lower section for being located at rotary pre- adsorbent equipment 7 in the low speed sorption channel 2 is provided with several absorption laterally set
Plate 8, several adsorption plates 8 are staggered；2 lower part of low speed heat exchanger channels is provided with net gas outlet 4；At net gas outlet 4
It is provided with air-introduced machine 9.Heat exchanger tube 5 extends transversely through low speed sorption channel 2, is less than 8 installation site of adsorption plate through position.Also wrap
A Heat Room 10 is included, Heat Room 10 is arranged on 1 top of high speed heat exchanger channels.5 end of heat exchanger tube extends into Heat Room 10
It is interior；And 5 end of heat exchanger tube is connected with several radiating fins 11；If radiating fin 11 is the dry plate being arranged in parallel, extension side
To consistent with 10 extending direction of Heat Room.10 front end of Heat Room is provided with wind turbine 12, and rear end is compound with being coated with by air hose
Machine baking oven connects.
High speed heat exchanger channels 1 and 2 intersection of low speed sorption channel are provided with the surge chamber 6 of section triangle, the rotation
The pre- adsorbent equipment 7 of formula is arranged on 6 in surge chamber.Surge chamber section 6 is right angled triangle, and the higher one side of bevel edge is located at low speed
In sorption channel 2, relatively low one side is located on high speed heat exchanger channels 1.
It is set in absorption bag 73 and is filled with activated carbon, active carbon slab 81 is provided on the adsorption plate 8.It is set on blade 72
There is the string bag, the absorption bag 73 is positioned in the string bag.Metal grill is provided on adsorption plate 8, the activity carbon slab 81 is embedded in
In metal grill.
Exhaust gas enters high speed heat exchanger channels 1 from baking oven by exhaust gas entrance 3, and heat exchange is carried out with heat exchanger tube 5.And it is buffering
Room 6 is redirected into low speed sorption channel 2 so that the organic solvent in exhaust gas is discharged after being tightly held by activated carbon from net gas outlet 4.It changes
Heat transferring medium heat absorption in heat pipe 5 flashes to gas, enters Heat Room 10 by heat exchanger tube 5, after carrying out heat exchange with cold air
It is back to high speed Heat Room 1.And cold air carrying amount of heat into after crossing heat exchange enters coating complex machine baking oven.
It the above is only the preferred embodiment of the present invention, it is noted that above-mentioned preferred embodiment is not construed as pair
The limitation of the present invention, protection scope of the present invention should be subject to claim limited range.For the art
For those of ordinary skill, without departing from the spirit and scope of the present invention, several improvements and modifications can also be made, these change
Protection scope of the present invention is also should be regarded as into retouching.
Claims (10)
1. a kind of coating complex machine device for recycling exhaust gas, it is characterised in that：High speed heat exchange including being vertically arranged side by side is logical
Road and low speed sorption channel；The high speed heat exchanger channels include housing, and the housing bottom is provided with exhaust gas entrance and causes exhaust gas
It is moved from top to bottom in housing；Four walls are placed with consistent with high speed heat exchanger channels extending direction inside the high speed heat exchanger channels
Heat exchanger tube；Identical with high speed heat exchanger channels top at the top of low speed sorption channel, intersection is provided with rotary pre-suction attaching
It puts；The rotary pre- adsorbent equipment includes horizontally disposed shaft, and blade is provided in the shaft, is fixed on the blade
There is absorption to wrap；It is located in the low speed sorption channel below rotary pre- adsorbent equipment and is provided with several absorption laterally set
Plate, several adsorption plates are staggered；The low speed heat exchanger channels lower part is provided with net gas outlet；Further include a heat exchange
Room, the tube end are extended into Heat Room；And tube end is connected with several radiating fins；Before the Heat Room
End is provided with wind turbine, and rear end is connected by air hose with coating complex machine baking oven.
2. a kind of coating complex machine device for recycling exhaust gas according to claim 1, it is characterised in that：The high quick change
The passage of heat and low speed sorption channel intersection are provided with the surge chamber of section triangle, and the rotary pre- adsorbent equipment is arranged on
In surge chamber.
3. a kind of coating complex machine device for recycling exhaust gas according to claim 2, it is characterised in that：The surge chamber
Section is right angled triangle, and the higher one side of bevel edge is located in low speed sorption channel, and relatively low one side is located to exchange heat at a high speed and lead to
On road.
4. a kind of coating complex machine device for recycling exhaust gas according to claim 1, it is characterised in that：The absorption bag
Interior set is filled with activated carbon, and active carbon slab is provided on the adsorption plate.
5. a kind of coating complex machine device for recycling exhaust gas according to claim 4, it is characterised in that：On the blade
The string bag is provided with, the absorption bag is positioned in the string bag.
6. a kind of coating complex machine device for recycling exhaust gas according to claim 4, it is characterised in that：The adsorption plate
On be provided with metal grill, the activity carbon slab is embedded in metal grill.
7. a kind of coating complex machine device for recycling exhaust gas according to claim 1, it is characterised in that：The net gas goes out
Air-introduced machine is provided at mouthful.
8. a kind of coating complex machine device for recycling exhaust gas according to claim 1, it is characterised in that：The radiating fin
If piece is the dry plate being arranged in parallel, extending direction is consistent with Heat Room extending direction.
9. a kind of coating complex machine device for recycling exhaust gas according to claim 1, it is characterised in that：The heat exchanger tube
Low speed sorption channel is extended transversely through, is less than adsorption plate installation site through position.
10. a kind of coating complex machine device for recycling exhaust gas according to claim 1, it is characterised in that：The heat exchange
Room is arranged on above high speed heat exchanger channels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810071156.7A CN108067083B (en) | 2018-01-24 | 2018-01-24 | Coating compounding machine waste gas recycle device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810071156.7A CN108067083B (en) | 2018-01-24 | 2018-01-24 | Coating compounding machine waste gas recycle device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108067083A true CN108067083A (en) | 2018-05-25 |
| CN108067083B CN108067083B (en) | 2023-08-11 |
Family
ID=62156971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810071156.7A Active CN108067083B (en) | 2018-01-24 | 2018-01-24 | Coating compounding machine waste gas recycle device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108067083B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108905487A (en) * | 2018-05-30 | 2018-11-30 | 广东知识城运营服务有限公司 | A kind of novel exhaust gas cleaner of plasticizer |
| CN109289818A (en) * | 2018-09-28 | 2019-02-01 | 浙江大学 | A kind of molecular sieve purification devices and methods therefor using heat tube moisture heat exchanger |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108905487A (en) * | 2018-05-30 | 2018-11-30 | 广东知识城运营服务有限公司 | A kind of novel exhaust gas cleaner of plasticizer |
| CN109289818A (en) * | 2018-09-28 | 2019-02-01 | 浙江大学 | A kind of molecular sieve purification devices and methods therefor using heat tube moisture heat exchanger |
| CN109289818B (en) * | 2018-09-28 | 2020-03-27 | 浙江大学 | Molecular sieve purifying device and method utilizing heat pipe dehumidification heat exchanger |
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| CN108067083B (en) | 2023-08-11 |
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Effective date of registration: 20231130 Address after: 618000 Jinshan Industrial Park, Luojiang District, Deyang, Sichuan Patentee after: SICHUAN WEIYI PLASTIC PRODUCTS CO.,LTD. Address before: 618500 Tanjiaba (Grain Depot), Jinshan Town, Luojiang County, Deyang City, Sichuan Province Patentee before: DEYANG TIANCI PLASTIC CO.,LTD. |
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