CN208606603U - Roasting material waste-heat recovery device in a kind of lithium carbonate production technology - Google Patents
Roasting material waste-heat recovery device in a kind of lithium carbonate production technology Download PDFInfo
- Publication number
- CN208606603U CN208606603U CN201821167537.7U CN201821167537U CN208606603U CN 208606603 U CN208606603 U CN 208606603U CN 201821167537 U CN201821167537 U CN 201821167537U CN 208606603 U CN208606603 U CN 208606603U
- Authority
- CN
- China
- Prior art keywords
- bolt
- cooler bin
- wall
- roasting material
- lithium carbonate
- 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.)
- Active
Links
- 239000000463 material Substances 0.000 title claims abstract description 50
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 title claims abstract description 29
- 229910052808 lithium carbonate Inorganic materials 0.000 title claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 238000005516 engineering process Methods 0.000 title claims abstract description 23
- 238000011084 recovery Methods 0.000 title claims abstract description 21
- 239000002918 waste heat Substances 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 52
- 239000007921 spray Substances 0.000 claims abstract description 18
- 238000002955 isolation Methods 0.000 claims abstract description 16
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 4
- 239000002937 thermal insulation foam Substances 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 238000004134 energy conservation Methods 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000010248 power generation Methods 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 229910052744 lithium Chemical group 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- VNWKTOKETHGBQD-AKLPVKDBSA-N carbane Chemical compound [15CH4] VNWKTOKETHGBQD-AKLPVKDBSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 206010053615 Thermal burn Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 229910003002 lithium salt Inorganic materials 0.000 description 1
- 159000000002 lithium salts Chemical group 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
-
- 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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
-
- 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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The utility model discloses roasting material waste-heat recovery devices in a kind of lithium carbonate production technology, including cooler bin, the side of the cooler bin top exterior walls is equipped with the feed pipe being obliquely installed by bolt, and the outer circumferential walls of feed pipe are equipped with inlet valve by bolt, the cooler bin offers opening far from the side outer wall of feed pipe, and the bottom interior wall of opening is hinged with discharge door, the cooler bin is hinged with isolation web plate close to the side inner wall bottom of discharge door, and side of the web plate top exterior walls far from discharge door is isolated and is equipped with the baffle being vertically arranged by bolt.The utility model is connected with roasting material spray water of the spray head of water tank on isolation web plate by suction pump, roasting material and water is set to carry out heat exchange, the water vapour that heat exchange generates is discharged by escape pipe, it can be used as power generation or other purposes, the hot water that heat exchange generates is utilized by drainpipe export, it is utilized the high temperature heat of roasting material, energy conservation and environmental protection.
Description
Technical field
The utility model relates to more than roasting material in lithium carbonate preparation technical field more particularly to a kind of lithium carbonate production technology
Heat recovery apparatus.
Background technique
Lithium carbonate is the basic material for producing secondary lithium salts and lithium metal product, thus it is maximum to become dosage in lithium industry
Lithium product, other lithium products are all the downstream product of lithium carbonate on it, and the production technology of China's lithium carbonate is mainly using solid
Body ore extraction process, need in lithium carbonate production technology by after fine grinding ore and calcium carbonate carry out calcination process, after roasting
High temperature baked material it is cooling after just can be carried out subsequent step.
Cooling in traditional processing technology is to flow into high temperature baked material in air-cooled roller in roasting kiln hood, is recycled by cold wind
Fast cooling is carried out to roasting material, but the heat of roasting material is distributed loss in air by this type of cooling, makes roasting material
High temperature heat be lost in vain, cause the waste of the energy.
Utility model content
Purpose of the utility model is to solve disadvantages existing in the prior art, and a kind of lithium carbonate production proposed
Roasting material waste-heat recovery device in technique.
To achieve the goals above, the utility model adopts the technical scheme that
Roasting material waste-heat recovery device in a kind of lithium carbonate production technology, including cooler bin, the cooler bin top exterior walls
Side the feed pipe being obliquely installed is installed by bolt, and the outer circumferential walls of feed pipe are equipped with inlet valve by bolt,
The cooler bin offers opening far from the side outer wall of feed pipe, and the bottom interior wall being open is hinged with discharge door, described cold
But case is hinged with isolation web plate close to the side inner wall bottom of discharge door, and side of the web plate top exterior walls far from discharge door is isolated
The baffle being vertically arranged is installed by bolt, there are three horizontal by bolt installation at the top of cooler bin both ends inner wall
The spray head that direction equidistantly distributes, and the one end of spray head far from cooler bin is equipped with connecting tube, six spray heads by bolt
It is connected with the same horizontal positioned suction pump by connecting tube, and the water inlet end of suction pump is equipped with by bolt and is vertically arranged
Fixing pipe, the outer circumferential walls of the fixing pipe are equipped with water tank by bolt, and the top exterior walls of water tank pass through bolt and install
There is the water injection pipe being vertically arranged, the bottom of water tank two sides inner wall is equipped with strainer, and the bottom outer wall of strainer by bolt
Active carbon is filled between the bottom interior wall of water tank.
Preferably, it is sealed between the discharge door and cooler bin.
Preferably, the cooler bin bottom interior wall is equipped be obliquely installed hydraulic by bolt close to the side of baffle and stretched
Contracting bar, and the top exterior walls of hydraulic telescopic rod are connected by bolt with the bottom outer wall that web plate is isolated.
Preferably, the bottom outer wall of the fixing pipe is located at the top of strainer, and the bottom outer wall of water injection pipe is located at strainer
Bottom.
Preferably, the top exterior walls of the cooler bin are equipped with escape pipe by bolt, and the bottom outer wall of cooler bin is logical
It crosses bolt and drainpipe is installed, the outer circumferential walls of drainpipe are equipped with drain valve by bolt.
Preferably, the outer circumferential walls of the escape pipe are equipped with air passage one-way valve, and the side of air passage one-way valve by bolt
To being from cooler bin to escape pipe.
Preferably, the shell of the cooler bin includes inner panel and outside plate, and is installed between inner panel and outside plate by bolt
There is insulation board, outside plate is enclosed with heat insulation foam far from one end outer wall of inner panel.
The utility model has the following beneficial effects:
1. roasting is added by feed pipe into cooler bin for roasting material waste-heat recovery device in a kind of lithium carbonate production technology
Material is connected with roasting material spray water of the spray head of water tank on isolation web plate by suction pump, roasting material and water is made to carry out hot friendship
It changes, the water vapour that heat exchange generates is discharged by escape pipe, can be used as power generation or other purposes, and the hot water that heat exchange generates passes through
Drainpipe export is utilized, and is utilized the high temperature heat of roasting material, energy conservation and environmental protection.
2. roasting material waste-heat recovery device in a kind of lithium carbonate production technology, is sprinkled water by spray head, fills water with roasting material
Tap touching, accelerates exchange rate, and using strainer and active carbon is filtered to the water in water tank and adsorption treatment, recycles and takes out
Water pump carries out extraction use, guarantees the quality of cooling water, prevents the quality for influencing roasting material, guarantees the quality of lithium carbonate preparation,
It is safe and reliable.
3. roasting material waste-heat recovery device in a kind of lithium carbonate production technology, roasting material is placed on isolation web plate, cooling
Water in case is discharged from the lower section of isolation web plate, is effectively separated roasting material and water using isolation web plate, after cooled
Discharge door is opened, pushes isolation web plate to make to be isolated web plate to discharge door inclination, so that roasting material be sent out using hydraulic telescopic rod
Cooler bin uses simple, blanking convenience, raising working efficiency.
Detailed description of the invention
Fig. 1 be the utility model proposes a kind of lithium carbonate production technology in roasting material waste-heat recovery device cooler bin knot
Structure schematic diagram；
Fig. 2 be the utility model proposes a kind of lithium carbonate production technology in roasting material waste-heat recovery device side view structure
Schematic diagram；
Fig. 3 be the utility model proposes a kind of lithium carbonate production technology in roasting material waste-heat recovery device cooler bin outside
Shell schematic cross-sectional view.
In figure: 1 cooler bin, 2 feed pipes, 3 inlet valves, 4 discharge doors, 5 isolation web plates, 6 baffles, 7 hydraulic telescopic rods, 8 sprays
Head, 9 connecting tubes, 10 suction pumps, 11 fixing pipes, 12 water tanks, 13 water injection pipes, 14 strainers, 15 active carbons, 16 escape pipes, 17 gas circuits
Check valve, 18 drainpipes, 19 drain valves, 20 inner panels, 21 outside plates, 22 insulation boards, 23 heat insulation foams.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
Referring to Fig.1-3, roasting material waste-heat recovery device in a kind of lithium carbonate production technology, including cooler bin 1, cooler bin 1
The side of top exterior walls is equipped with the feed pipe 2 being obliquely installed by bolt, and the outer circumferential walls of feed pipe 2 are installed by bolt
There is inlet valve 3, cooler bin 1 offers opening far from the side outer wall of feed pipe 2, and the bottom interior wall being open is hinged with discharge door
4, cooler bin 1 is hinged with isolation web plate 5 close to the side inner wall bottom of discharge door 4, and 5 top exterior walls of web plate are isolated far from discharging
The side of door 4 is equipped with the baffle 6 being vertically arranged by bolt, and the top of 1 both ends inner wall of cooler bin is equipped with by bolt
The spray head 8 that three horizontal directions equidistantly distribute, and the one end of spray head 8 far from cooler bin 1 is equipped with connecting tube 9 by bolt,
Six spray heads 8 are connected with the same horizontal positioned suction pump 10 by connecting tube 9, and the water inlet end of suction pump 10 passes through bolt
The fixing pipe 11 being vertically arranged is installed, the outer circumferential walls of fixing pipe 11 are equipped with water tank 12, and the top of water tank 12 by bolt
Portion's outer wall is equipped with the water injection pipe 13 being vertically arranged by bolt, and the bottom of 12 two sides inner wall of water tank is equipped with strainer by bolt
14, and active carbon 15 is filled between the bottom outer wall of strainer 14 and the bottom interior wall of water tank 12.
It in the utility model, is sealed between discharge door 4 and cooler bin 1, discharge door 4 is thermal insulation material production, 1 bottom of cooler bin
Portion's inner wall is equipped with the hydraulic telescopic rod 7 being obliquely installed, and the top of hydraulic telescopic rod 7 close to the side of baffle 6 by bolt
Outer wall is connected by bolt with the bottom outer wall that web plate 5 is isolated, and pushes isolation web plate 5 to make that web plate is isolated using hydraulic telescopic rod 7
5 tilt to discharge door 4, so that roasting material is sent out cooler bin 1, use simple, blanking convenience, the bottom outer wall position of fixing pipe 11
In the top of strainer 14, and the bottom outer wall of water injection pipe 13 is located at the bottom of strainer 14, using strainer 14 and active carbon 15 to water
Water in case 12 is filtered and adsorption treatment, and suction pump 10 is recycled to carry out extraction use, guarantees the quality of lithium carbonate preparation,
The top exterior walls of cooler bin 1 are equipped with escape pipe 16 by bolt, and the water vapour that heat exchange generates is discharged by escape pipe 16, can
As power generation or other purposes, and the bottom outer wall of cooler bin 1 is equipped with drainpipe 18, the hot water that heat exchange generates by bolt
It is utilized by the export of drainpipe 18, is utilized the high temperature heat of roasting material, energy conservation and environmental protection, outside the circumference of drainpipe 18
Wall is equipped with drain valve 19 by bolt, and the outer circumferential walls of escape pipe 16 are equipped with air passage one-way valve 17, and gas circuit by bolt
The direction of check valve 17 is from cooler bin 1 to escape pipe 16, and the shell of cooler bin 1 includes inner panel 20 and outside plate 21, and inner panel
Insulation board 22 is equipped with by bolt between 20 and outside plate 21, prevents the high temperature heat of roasting material to scatter and disappear, outside plate 21 is far from inner panel
20 one end outer wall is enclosed with heat insulation foam 23, prevents from causing to scald from external contact.
Working principle: the design mainly for roasting material waste-heat recovery device in a kind of lithium carbonate production technology, by into
Roasting material is added into cooler bin 1 in expects pipe 2, is connected with roasting of the spray head 8 of water tank 12 on isolation web plate 5 by suction pump 10
Expect spray water, roasting material and water is made to carry out heat exchange, the water vapour that heat exchange generates is discharged by escape pipe 16, can be used as power generation
Or other purposes, the hot water that heat exchange generates are utilized by the export of drainpipe 18, and the high temperature heat of roasting material is made to obtain benefit
With energy conservation and environmental protection is sprinkled water by spray head 8, comes into full contact with water with roasting material, and exchange rate is accelerated, and using strainer 14 and is lived
Property charcoal 15 water in water tank 12 is filtered and adsorption treatment, recycle suction pump 10 to carry out extraction use, guarantee cooling water
Quality, prevent influence roasting material quality, guarantee lithium carbonate preparation quality, it is safe and reliable, roasting material be placed on every
On off-network plate 5, the water in cooler bin 1 is discharged from the lower section of isolation web plate 5, using isolation web plate 5 effectively by roasting material and water
It is separated, opens discharge door 4 after cooled, push isolation web plate 5 to make to be isolated web plate 5 to discharge door 4 using hydraulic telescopic rod 7
Inclination uses simple, blanking convenience, raising working efficiency so that roasting material is sent out cooler bin 1.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (7)
1. roasting material waste-heat recovery device in a kind of lithium carbonate production technology, including cooler bin (1), which is characterized in that described cold
But the side of case (1) top exterior walls is equipped with the feed pipe (2) being obliquely installed, and the outer circumferential walls of feed pipe (2) by bolt
It is equipped with inlet valve (3) by bolt, the cooler bin (1) offers opening far from the side outer wall of feed pipe (2), and is open
Bottom interior wall be hinged with discharge door (4), the cooler bin (1) is hinged with isolation close to the side inner wall bottom of discharge door (4)
Web plate (5), and web plate (5) top exterior walls are isolated, the baffle being vertically arranged is installed by bolt far from the side of discharge door (4)
(6), by bolt installation, there are three the spray heads that horizontal direction equidistantly distributes at the top of cooler bin (1) both ends inner wall
(8), and spray head (8) is equipped with connecting tube (9) far from the one end of cooler bin (1) by bolt, and six spray heads (8) pass through company
Adapter tube (9) is connected with the same horizontal positioned suction pump (10), and the water inlet end of suction pump (10) be equipped with by bolt it is perpendicular
The outer circumferential walls of the fixing pipe (11) being directly arranged, the fixing pipe (11) are equipped with water tank (12) by bolt, and water tank (12)
Top exterior walls the water injection pipe (13) being vertically arranged is installed by bolt, the bottom of water tank (12) two sides inner wall passes through spiral shell
Bolt is equipped with strainer (14), and active carbon is filled between the bottom outer wall of strainer (14) and the bottom interior wall of water tank (12)
(15)。
2. roasting material waste-heat recovery device in a kind of lithium carbonate production technology according to claim 1, which is characterized in that institute
It states and is sealed between discharge door (4) and cooler bin (1).
3. roasting material waste-heat recovery device in a kind of lithium carbonate production technology according to claim 1, which is characterized in that institute
It states cooler bin (1) bottom interior wall and the hydraulic telescopic rod (7) being obliquely installed is installed close to the side of baffle (6) by bolt, and
The top exterior walls of hydraulic telescopic rod (7) are connected by bolt with the bottom outer wall that web plate (5) is isolated.
4. roasting material waste-heat recovery device in a kind of lithium carbonate production technology according to claim 1, which is characterized in that institute
The bottom outer wall for stating fixing pipe (11) is located at the top of strainer (14), and the bottom outer wall of water injection pipe (13) is located at strainer (14)
Bottom.
5. roasting material waste-heat recovery device in a kind of lithium carbonate production technology according to claim 1, which is characterized in that institute
The top exterior walls for stating cooler bin (1) are equipped with escape pipe (16) by bolt, and the bottom outer wall of cooler bin (1) is pacified by bolt
Equipped with drainpipe (18), the outer circumferential walls of drainpipe (18) are equipped with drain valve (19) by bolt.
6. roasting material waste-heat recovery device in a kind of lithium carbonate production technology according to claim 5, which is characterized in that institute
The outer circumferential walls for stating escape pipe (16) are equipped with air passage one-way valve (17) by bolt, and the direction of air passage one-way valve (17) be from
Cooler bin (1) is to escape pipe (16).
7. roasting material waste-heat recovery device in a kind of lithium carbonate production technology according to claim 1, which is characterized in that institute
The shell for stating cooler bin (1) includes inner panel (20) and outside plate (21), and is pacified between inner panel (20) and outside plate (21) by bolt
Equipped with insulation board (22), outside plate (21) is enclosed with heat insulation foam (23) far from one end outer wall of inner panel (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821167537.7U CN208606603U (en) | 2018-07-23 | 2018-07-23 | Roasting material waste-heat recovery device in a kind of lithium carbonate production technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821167537.7U CN208606603U (en) | 2018-07-23 | 2018-07-23 | Roasting material waste-heat recovery device in a kind of lithium carbonate production technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208606603U true CN208606603U (en) | 2019-03-15 |
Family
ID=65669947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821167537.7U Active CN208606603U (en) | 2018-07-23 | 2018-07-23 | Roasting material waste-heat recovery device in a kind of lithium carbonate production technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208606603U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110216158A (en) * | 2019-06-12 | 2019-09-10 | 山东钢铁股份有限公司 | A kind of DEVICE FOR BAR AND WIRE HOT ROLLING cooling system |
-
2018
- 2018-07-23 CN CN201821167537.7U patent/CN208606603U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110216158A (en) * | 2019-06-12 | 2019-09-10 | 山东钢铁股份有限公司 | A kind of DEVICE FOR BAR AND WIRE HOT ROLLING cooling system |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 336000, No. 199 Xingye Road, High tech Industrial Park, Fengxin County, Yichun City, Jiangxi Province Patentee after: Jiangxi Yunwei New Materials Co.,Ltd. Country or region after: Zhong Guo Address before: 330700 No. 199 Xingye Road, Fengxin County Industrial Park, Yichun City, Jiangxi Province Patentee before: JIANGXI YUNWEI NEW MATERIAL Co.,Ltd. Country or region before: Zhong Guo |