CN110242973A - A kind of carbon fiber production exhaust-gas treatment pipe-line system - Google Patents
A kind of carbon fiber production exhaust-gas treatment pipe-line system Download PDFInfo
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- CN110242973A CN110242973A CN201910510237.7A CN201910510237A CN110242973A CN 110242973 A CN110242973 A CN 110242973A CN 201910510237 A CN201910510237 A CN 201910510237A CN 110242973 A CN110242973 A CN 110242973A
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- Prior art keywords
- exhaust
- exhaust gas
- pipe
- main pipeline
- gas
- Prior art date
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Links
- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 25
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 25
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 238000007380 fibre production Methods 0.000 title claims abstract description 22
- 239000007789 gas Substances 0.000 claims abstract description 102
- 238000003763 carbonization Methods 0.000 claims abstract description 30
- 239000002912 waste gas Substances 0.000 claims abstract description 30
- 239000000126 substance Substances 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 5
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 claims description 3
- 229910052863 mullite Inorganic materials 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 claims description 2
- 230000008092 positive effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 8
- 238000004140 cleaning Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 229920002239 polyacrylonitrile Polymers 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003818 cinder Substances 0.000 description 2
- 239000000571 coke Substances 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 239000002283 diesel fuel Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 230000003471 anti-radiation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000003486 chemical etching Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229920006253 high performance fiber Polymers 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J11/00—Devices for conducting smoke or fumes, e.g. flues
- F23J11/02—Devices for conducting smoke or fumes, e.g. flues for conducting smoke or fumes originating from various locations to the outside, e.g. in locomotive sheds, in garages
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J13/00—Fittings for chimneys or flues
- F23J13/02—Linings; Jackets; Casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2213/00—Chimneys or flues
- F23J2213/30—Specific materials
Abstract
The present invention relates to a kind of carbon fiber production exhaust-gas treatment pipe-line systems, when being produced using new waste gas provided by the present application processing pipe-line system, the exhaust gas that low temperature carbonization furnace generates is under the negative pressure driving that entire incineration system generates, exhaust pipe I is sequentially entered by Waste gas outlet, exhaust pipe II, exhaust gas main pipeline, in exhaust gas main pipeline, burner ignites exhaust gas, a part of substance burns in exhaust gas, exhaust gas after burning enters burned waste gas system by exhaust pipe III and incineration system connecting tube together with unburned exhaust gas and carries out further burning disposal, atmosphere is discharged into eventually by chimney high-altitude.The good effect of the application is: allowing a part of exhaust gas first to burn in exhaust gas main pipeline, and can realize Hand scarf；It completes that the burning disposal of a part of exhaust gas is reduced the processing pressure of incineration system, plays certain positive effect in terms of improving operating load and environment protection standard before entering incineration system.
Description
Technical field
The invention belongs to technical field of carbon fiber preparation, the exhaust-gas treatment suitable for carbon fiber production carbonisation.
Background technique
Polyacrylonitrile-based carbon fibre is a kind of artificial synthetic fiber, is passed through by acrylonitrile and itaconic acid or other comonomers
The fibrous polymer obtained after the processing of the series of process such as polymerization, spinning, pre-oxidation and carbonization.Polyacrylonitrile-based carbon fibre
With high specific strength, high ratio modulus, high temperature resistant, resistant to chemical etching, endurance, heat-resisting, shock resistance, anti-radiation, easy conductive, heat transfer
With a series of excellent properties such as specific gravity is small, belong to typical high-performance fiber.In carbon fiber production process, polyacrylonitrile fibril
High-temperature heat treatment is carried out by oxidation furnace and carbide furnace, occurs largely to chemically react and produce by-product in heat treatment process,
Especially low-temperature carbonization stage, fiber weightlessness under 400-800 DEG C of processing reach 40% or so, generate a large amount of exhaust gas and coke
Oil, the exhaust gas that low-temperature carbonization is timely and effectively discharged are low temperature carbonization furnace designs and guarantee stable product quality and stable
Key point.
The design of low temperature carbonization furnace is generally equipped with multiple groups Waste gas outlet, low-temperature carbonization in the more violent temperature section of reaction
The exhaust gas of generation, which by exhaust piping is connected to waste gas combustion furnace and burn reaching, to be discharged into after discharge standard by chimney high-altitude
Atmosphere.The major impetus of low-temperature carbonization exhaust gas discharge derives from the negative pressure draft of incinerator, because there are a considerable amount of in exhaust gas
High-molecular weight by-products, the slightly lower tar that will be condensed into of temperature is adhered on exhaust piping, although in exhaust piping design
It is pipe insulation to prevent tar from condensing that electrically heat tracing mode, which will be taken, but in the actual production process, with runing time
Extension, the waste discharge effect of exhaust piping can worse and worse, and finally resulting in low-temperature carbonization kiln gas can not be discharged, can only shut down into
Row pipeline cleaning, often primary cleaning needs 12-18 hours, and under normal duty, general operation is just needed to pipeline for 7-15 days
It is once cleared up, biggish economic loss can all be caused to enterprise by shutting down cleaning every time.Meanwhile carbon fiber carbonization device at
In Analysis of Nested Design, the processing capacity of burned waste gas system has one to match with design and operation load, once in order to improve equipment operation
Efficiency, slightly raising load, will result in incineration system overtemperature, form volume increase bottleneck.
Exhaust-gas treatment in carbon fiber preparation process is as a hot subject in field, about burned waste gas system
Correlative study is more, but the transformation of off-gas piping system is rarely reported.
Summary of the invention
It is an object of the invention to solve the tar condensation problem of exhaust piping in carbon fiber production process and solve life
Producing line improves the matching problem of incineration system after operating load, provides a kind of novel exhaust-gas treatment pipe-line system；The application can
To effectively improve the cycle of operation of carbon fiber production line, it can be achieved that Hand scarf, improves the operational efficiency of device, existing set is solved
The matching problem of standby operating load and incineration system.
The purpose of the present invention is achieved through the following technical solutions:
A kind of carbon fiber production exhaust-gas treatment pipe-line system, in order to solve the coke of exhaust piping in carbon fiber production process
Oily condensation problem and the matching problem for solving incineration system after production line raising operating load, need exhaust gas being sent into incinerator
Before, a degree of burning processing is directly carried out in exhaust piping.
A kind of carbon fiber production exhaust-gas treatment pipe-line system, it includes Waste gas outlet, four-way valve, exhaust pipe I,
Triple valve, exhaust pipe II, exhaust gas main pipeline, exhaust pipe III, four-way pipe, incinerator connecting tube, exhaust gas main pipeline are protected
Warm liner and burner；
A kind of carbon fiber production is connected to the exhaust gas discharge of low temperature carbonization furnace with exhaust-gas treatment pipe-line system by four-way valve
Mouthful, there are blank flanges for one end, are used for Hand scarf Waste gas outlet, and Waste gas outlet is symmetrical arranged in low-temperature carbonization furnace body,
General 2-4 group.
Exhaust pipe I is vertical tube, and lower end is connected with Waste gas outlet four-way valve, and upper end is connected with triple valve, and material is
310S is symmetrical arranged, general 2-4 group in low-temperature carbonization furnace body.
Triple valve connects the upper end of exhaust pipe I and one end of exhaust pipe II (transverse tube).
Exhaust pipe II is transverse tube, and one end connects triple valve, and one end connects exhaust gas main pipeline, material 310S, low
Temperature carbonization furnace body is symmetrical arranged, general 2-4 group.
Low-temperature carbonization furnace exhaust by exhaust pipe II be sent into exhaust gas main pipeline, material 310S, the one of exhaust gas main pipeline
End is equipped with diesel fuel burner, and insulating lining is housed inside exhaust gas main pipeline, and liner material is mullite, exhaust gas main pipeline it is another
End is equipped with blind plate, and in carbon fiber production process, the burner and blind plate at exhaust gas main pipeline both ends can dismantle carry out scarfing cinder at any time
Operation.
Exhaust gas after the burning of exhaust gas main pipeline part enters exhaust pipe III, and III one end of exhaust pipe connects exhaust gas
Main pipeline, one end are connected with four-way pipe, material 310S.
Incinerator connecting tube one end is connected with incineration system, and one end is connected by four-way pipe with exhaust pipe III, material
For 310S.There are blind plates at the other both ends of four-way pipe, are convenient to clean operation.
When being produced using new waste gas provided by the invention processing pipe-line system, the exhaust gas of low temperature carbonization furnace generation
Under the negative pressure driving that entire incineration system generates, exhaust pipe I, exhaust pipe are sequentially entered by Waste gas outlet
II, exhaust gas main pipeline, in exhaust gas main pipeline, burner ignites exhaust gas, and a part of substance burns in exhaust gas, after burning
Exhaust gas together with unburned exhaust gas by exhaust pipe III and incineration system connecting tube enter burned waste gas system carry out into
The burning disposal of one step is discharged into atmosphere eventually by chimney high-altitude.
Compared with prior art, the positive effect of the present invention is:
It is of the invention to be mainly characterized by allowing a part of exhaust gas first to burn in exhaust gas main pipeline, on the one hand avoid
It because tar caused by temperature drop condenses in exhaust gas transmission process, and can realize Hand scarf, reduce because shutting down cleaning bring warp
Ji loss；On the other hand it completes to reduce the place of incineration system to the burning disposal of a part of exhaust gas before entering incineration system
Pressure is managed, plays certain positive effect in terms of improving operating load and environment protection standard.
Detailed description of the invention
The structural schematic diagram one of Fig. 1 a the application
The structural schematic diagram two of Fig. 1 b the application
The structural schematic diagram three of Fig. 1 c the application；
The label in accompanying drawing is:
1, low temperature carbonization furnace；2, Waste gas outlet four-way valve；3, exhaust pipe I；4, triple valve；5, exhaust pipe
Ⅱ；6, exhaust gas main pipeline；7, exhaust pipe III；8, four-way pipe；9, incinerator connecting tube；10, exhaust gas main pipeline insulating lining；
11, burner.
Specific embodiment
A kind of carbon fiber production of the present invention presented below handles the specific embodiment of pipe-line system with new waste gas.
Embodiment 1
Refer to attached drawing 1a, 1b, 1c, a kind of carbon fiber production new waste gas processing pipe-line system, by exhaust gas master
It installs burner and insulating lining in pipeline additional, burning disposal is carried out to a part of exhaust gas, system includes: low temperature carbonization furnace 1；Exhaust gas
Discharge outlet four-way valve 2, exhaust pipe I 3；Triple valve 4；Exhaust pipe II 5；Exhaust gas main pipeline 6；Exhaust pipe III 7；Four
Siphunculus 8；Incinerator connecting tube 9；Exhaust gas main pipeline insulating lining 10；Burner 11.
A kind of carbon fiber production is connected to the exhaust gas discharge of low temperature carbonization furnace with exhaust-gas treatment pipe-line system by four-way valve
Mouthful, there are blank flanges for one end, are used for Hand scarf Waste gas outlet, and Waste gas outlet is symmetrical arranged in low-temperature carbonization furnace body,
General 2-4 group.
Exhaust pipe I is vertical tube, and lower end is connected with Waste gas outlet four-way valve, and upper end is connected with triple valve, and material is
310S is symmetrical arranged, general 2-4 group in low-temperature carbonization furnace body.
Triple valve connects the upper end of exhaust pipe I and one end of exhaust pipe II (transverse tube).
Exhaust pipe II is transverse tube, and one end connects triple valve, and one end connects exhaust gas main pipeline, material 310S, low
Temperature carbonization furnace body is symmetrical arranged, general 2-4 group.
Low-temperature carbonization furnace exhaust by exhaust pipe II be sent into exhaust gas main pipeline, material 310S, the one of exhaust gas main pipeline
End is equipped with diesel fuel burner, and insulating lining is housed inside exhaust gas main pipeline, and liner material is mullite, exhaust gas main pipeline it is another
End is equipped with blind plate, and in carbon fiber production process, the burner and blind plate at exhaust gas main pipeline both ends can dismantle carry out scarfing cinder at any time
Operation.
Exhaust gas after the burning of exhaust gas main pipeline part enters exhaust pipe III, and III one end of exhaust pipe connects exhaust gas
Main pipeline, one end are connected with four-way pipe, material 310S.
Incinerator connecting tube one end is connected with incineration system, and one end is connected by four-way pipe with exhaust pipe III, material
For 310S.There are blind plates at the other both ends of four-way pipe, are convenient to clean operation.
In production process, the exhaust gas that low temperature carbonization furnace generates is under the negative pressure driving that entire incineration system generates, by useless
Gas discharge outlet sequentially enters exhaust pipe I 3, exhaust pipe II 5, exhaust gas main pipeline, and in exhaust gas main pipeline, burner will
Exhaust gas ignites, and a part of substance burns in exhaust gas, and HCN concentration reduces 30-50% in exhaust gas, the exhaust gas after burning together with
Unburned exhaust gas enters burned waste gas system and is further burned by exhaust pipe III 7 and incineration system connecting tube
Processing, is discharged into atmosphere eventually by chimney high-altitude.
Before handling pipe-line system using new waste gas provided by the invention, when production line operation reaches certain load, burn
After burning system often causes Concatenate shut-down, new waste gas to handle pipe-line system use due to overtemperature alarm, produce load is improved
30%, incineration system works well, exhaust gas emission compliance.
Claims (6)
1. a kind of carbon fiber production exhaust-gas treatment pipe-line system, which is characterized in that it includes Waste gas outlet, four-way valve gives up
Gas delivery pipe I, triple valve, exhaust pipe II, exhaust gas main pipeline, exhaust pipe III, four-way pipe, incinerator connecting tube are given up
Gas main pipeline insulating lining and burner；
The Waste gas outlet of low temperature carbonization furnace is connected to by four-way valve, there are blank flanges for one end, and Waste gas outlet is in low temperature
The furnace body that is carbonized is symmetrical arranged；
Exhaust pipe I is vertical tube, and lower end is connected with Waste gas outlet four-way valve, and upper end is connected with triple valve, in low-temperature carbonization
Furnace body is symmetrical arranged；
Triple valve connects the upper end of exhaust pipe I and one end of exhaust pipe II；
Exhaust pipe II is transverse tube, and one end connects triple valve, and one end connects exhaust gas main pipeline, symmetrically sets in low-temperature carbonization furnace body
It sets；
Low-temperature carbonization furnace exhaust is sent into exhaust gas main pipeline by exhaust pipe II, and one end of exhaust gas main pipeline is equipped with diesel combustion
Device, exhaust gas main pipeline inside are equipped with insulating lining, and the other end of exhaust gas main pipeline is equipped with blind plate；
Exhaust gas after the burning of exhaust gas main pipeline part enters exhaust pipe III, and III one end of exhaust pipe connects exhaust gas supervisor
Road, one end are connected with four-way pipe；
Incinerator connecting tube one end is connected with incineration system, and one end is connected by four-way pipe with exhaust pipe III, four-way pipe
In addition there are blind plates at both ends.
2. a kind of carbon fiber production exhaust-gas treatment pipe-line system as described in claim 1, which is characterized in that Waste gas outlet
Number 2-4 group.
3. a kind of carbon fiber production exhaust-gas treatment pipe-line system as described in claim 1, which is characterized in that exhaust pipe
I number is 2-4 group.
4. a kind of carbon fiber production exhaust-gas treatment pipe-line system as described in claim 1, which is characterized in that exhaust pipe
II number is 2-4 group.
5. a kind of carbon fiber production exhaust-gas treatment pipe-line system as described in claim 1, which is characterized in that insulating lining
Material is mullite.
6. the production method that exhaust-gas treatment pipe-line system is used in a kind of carbon fiber production as described in claim 1, which is characterized in that
The exhaust gas that low temperature carbonization furnace generates sequentially enters exhaust gas by Waste gas outlet under the negative pressure driving that entire incineration system generates
Delivery pipe I, exhaust pipe II, exhaust gas main pipeline, in exhaust gas main pipeline, burner ignites exhaust gas, a part of in exhaust gas
Substance burns, and the exhaust gas after burning enters together with unburned exhaust gas by exhaust pipe III and incineration system connecting tube
Burned waste gas system carries out further burning disposal, is discharged into atmosphere eventually by chimney high-altitude.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910510237.7A CN110242973A (en) | 2019-06-13 | 2019-06-13 | A kind of carbon fiber production exhaust-gas treatment pipe-line system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910510237.7A CN110242973A (en) | 2019-06-13 | 2019-06-13 | A kind of carbon fiber production exhaust-gas treatment pipe-line system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110242973A true CN110242973A (en) | 2019-09-17 |
Family
ID=67886911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910510237.7A Pending CN110242973A (en) | 2019-06-13 | 2019-06-13 | A kind of carbon fiber production exhaust-gas treatment pipe-line system |
Country Status (1)
| Country | Link |
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| CN (1) | CN110242973A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110975524A (en) * | 2019-12-05 | 2020-04-10 | 安徽卓锐三维科技有限公司 | Flue gas treatment device for laser printing |
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|---|---|---|---|---|
| JP2001234434A (en) * | 2000-02-24 | 2001-08-31 | Toray Ind Inc | Method for producing carbon fiber |
| CN104342784A (en) * | 2013-08-02 | 2015-02-11 | 中国石油天然气股份有限公司 | A waste gas controlling and discharging method of a low-temperature carbonization furnace during carbon fiber production |
| US20160039118A1 (en) * | 2013-03-28 | 2016-02-11 | Elg Carbon Fibre International Gmbh | Pyrolysis system and method of recovering carbon fibres from carbon-fibre-containing plastics |
| CN107541810A (en) * | 2017-09-18 | 2018-01-05 | 中安信科技有限公司 | The tracing system of carbon fibre carbonizing furnace exhaust pipeline |
| CN210107429U (en) * | 2019-06-13 | 2020-02-21 | 浙江精功碳纤维有限公司 | Waste gas treatment pipeline device for carbon fiber production |
-
2019
- 2019-06-13 CN CN201910510237.7A patent/CN110242973A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001234434A (en) * | 2000-02-24 | 2001-08-31 | Toray Ind Inc | Method for producing carbon fiber |
| US20160039118A1 (en) * | 2013-03-28 | 2016-02-11 | Elg Carbon Fibre International Gmbh | Pyrolysis system and method of recovering carbon fibres from carbon-fibre-containing plastics |
| CN104342784A (en) * | 2013-08-02 | 2015-02-11 | 中国石油天然气股份有限公司 | A waste gas controlling and discharging method of a low-temperature carbonization furnace during carbon fiber production |
| CN107541810A (en) * | 2017-09-18 | 2018-01-05 | 中安信科技有限公司 | The tracing system of carbon fibre carbonizing furnace exhaust pipeline |
| CN210107429U (en) * | 2019-06-13 | 2020-02-21 | 浙江精功碳纤维有限公司 | Waste gas treatment pipeline device for carbon fiber production |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110975524A (en) * | 2019-12-05 | 2020-04-10 | 安徽卓锐三维科技有限公司 | Flue gas treatment device for laser printing |
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|---|---|---|---|
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 312000 91 hills, Binhai Industrial Zone, Keqiao District, Shaoxing, Zhejiang Applicant after: Zhejiang Baojing carbon material Co.,Ltd. Applicant after: ZHEJIANG JINGYE XINXING MATERIAL Co.,Ltd. Address before: 312030 91 hills, Binhai Industrial Zone, Keqiao District, Shaoxing, Zhejiang Applicant before: ZHEJIANG JINGGONG CARBON FIBER Co.,Ltd. Applicant before: ZHEJIANG JINGYE XINXING MATERIAL Co.,Ltd. |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20220705 Address after: 312000 91 hills, Binhai Industrial Zone, Keqiao District, Shaoxing, Zhejiang Applicant after: Zhejiang Baojing carbon material Co.,Ltd. Address before: 312000 91 hills, Binhai Industrial Zone, Keqiao District, Shaoxing, Zhejiang Applicant before: Zhejiang Baojing carbon material Co.,Ltd. Applicant before: Zhejiang Jingye Xinxing Material Co., Ltd |