CN106731315A - A kind of downhole coal mine air cleaner - Google Patents
A kind of downhole coal mine air cleaner Download PDFInfo
- Publication number
- CN106731315A CN106731315A CN201611208974.4A CN201611208974A CN106731315A CN 106731315 A CN106731315 A CN 106731315A CN 201611208974 A CN201611208974 A CN 201611208974A CN 106731315 A CN106731315 A CN 106731315A
- Authority
- CN
- China
- Prior art keywords
- hollow shell
- hollow
- coal mine
- core construction
- center
- 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.)
- Granted
Links
- 239000003245 coal Substances 0.000 title claims abstract description 19
- 238000010276 construction Methods 0.000 claims abstract description 24
- 241000883990 Flabellum Species 0.000 claims abstract description 14
- 239000011261 inert gas Substances 0.000 claims description 10
- 239000011324 bead Substances 0.000 claims description 4
- 229910001172 neodymium magnet Inorganic materials 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 2
- 239000007769 metal material Substances 0.000 abstract description 4
- 239000002245 particle Substances 0.000 abstract description 4
- 208000027418 Wounds and injury Diseases 0.000 abstract description 3
- 230000006378 damage Effects 0.000 abstract description 3
- 238000010892 electric spark Methods 0.000 abstract description 3
- 208000014674 injury Diseases 0.000 abstract description 3
- 238000001914 filtration Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2411—Filter cartridges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0039—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices
- B01D46/0041—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices for feeding
- B01D46/0045—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices for feeding by using vanes
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2279/00—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses
- B01D2279/40—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses for cleaning of environmental air, e.g. by filters installed on vehicles or on streets
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a kind of downhole coal mine air cleaner, including bottom hollow shell, top hollow shell and the supporting leg for being fixed on bottom hollow shell basal surface, the center inside center and top hollow shell inside the hollow shell of bottom is provided with hollow-core construction, the bottom of the top of the bottom hollow shell and the top hollow shell is connected by helicitic texture, the air feeding in center through-hole structure for being located at the bottom hollow shell bottom centre of bottom one of the bottom hollow shell, the edge of the bottom hollow shell is provided with multiple edge air through hole structures.The present invention is substantially not used metal material, and it is gas that the device is used to drive the device of flabellum, so the generation of the spark produced due to friction and the electric spark phenomenon produced due to electric power short circuit will not occur, and then ensure that the safety coefficient of environment, in addition, by after device filtering, can effectively reduce the particle in air, extent of injury of the particle for workman in reduction air.
Description
Technical field
The present invention relates to mechanical equipment technical field, specially a kind of downhole coal mine air cleaner.
Background technology
At present, there is the hair that injury driver's phenomenon is moved on steering wheel to be placed on during shock in vehicle steering connecting shaft
It is raw, all dislocation device can be set in vehicle steering connecting shaft, once occur to clash into dislocation just can occur, can effectively prevent
Only moved on steering wheel, and general dislocation device is all using the elasticity of helical spring, when it clashes into, the error ratio of appearance
It is larger, so the device has certain limitation, further, since helical spring sudden and violent leakage for a long time is in atmosphere, its performance
Can decline, so in the presence of certain danger.
However, said apparatus have critical defect, i.e., the device sets in many equipment with metal material and electric power
It is standby, in full of the air containing coal impurity, it is easy to cause the generation of spark, fatal danger is produced, its danger is larger.
The content of the invention
It is an object of the invention to provide a kind of downhole coal mine air cleaner, to solve to be proposed in above-mentioned background technology
Problem.
To achieve the above object, the present invention provides following technical scheme：
A kind of downhole coal mine air cleaner, including bottom hollow shell, top hollow shell and it is fixed on bottom hollow shell
The supporting leg of body basal surface, the center inside center and top hollow shell inside the hollow shell of bottom is provided with hollow knot
The bottom of structure, the top of the bottom hollow shell and the top hollow shell is connected by helicitic texture, and the bottom is empty
The air feeding in center through-hole structure for being located at the bottom hollow shell bottom centre of bottom one of heart housing, the bottom hollow shell
The edge of body is provided with multiple edge air through hole structures, and the top of the air feeding in center through-hole structure connects the hollow knot
Structure, one end of the edge air through hole structure connects the air feeding in center through-hole structure, inside the bottom hollow shell
First round ring magnet is inlayed in side inside the hollow-core construction, and the inside of the hollow-core construction places one
Cartridge type airstrainer, the center inside the cartridge type airstrainer is hollow structure, the bottom of the cartridge type airstrainer
Second round ring magnet is fixed in portion, and first round ring magnet and the second round ring magnet physical dimension
All same, the bottom of the top hollow shell is provided with multiple discharge ducts, and the discharge duct connects the hollow-core construction,
The inside of the top hollow shell fixing a dividing plate above the discharge duct, the dividing plate centrally through
Bearing fixes a connecting shaft through the dividing plate, and the connecting shaft fixes a spiral shell in the axis body below the dividing plate
Vane piece, the connecting shaft is socketed a sleeve in the axis body above the dividing plate, and the edge of the sleeve fixes multiple
Longitudinally disposed flabellum, the top hollow shell fixes an admission line at the position above the dividing plate, described
The inside of top hollow shell is provided with a connection hollow-core construction and the inert gas of admission line enters passage, and described
Inert gas enters curvilinear structures of the passage in transverse plane.
Preferably, multiple edge air through hole even structures are arranged on inside the bottom hollow shell
Week.
Preferably, first round ring magnet and the second round ring magnet are Nd-Fe-B permanent magnet.
Preferably, the upper surface of the magnetic of the upper surface of first round ring magnet and the second round ring magnet
Magnetic it is opposite.
Preferably, the air inlet of the helical blade is located at lower section.
Preferably, multiple flabellums are uniformly arranged on a week of the sleeve outer surface.
Preferably, the top of the top hollow-core construction passes through multiple support bars connects a deep bead.
Preferably, the center at the top of the top hollow-core construction is communicated with the exhaust hole knot in hollow-core construction and the external world
Structure.
Compared with prior art, the beneficial effects of the invention are as follows：
The present invention is substantially not used metal material, and it is gas that the device is used to drive the device of flabellum, so will not occur
The generation of the spark and the electric spark phenomenon produced due to electric power short circuit that are produced due to friction, and then ensure that the peace of environment
Overall coefficient, additionally, by after device filtering, can effectively reduce the particle in air, particle is for workman in reducing air
Extent of injury.
Brief description of the drawings
Fig. 1 is a kind of structural representation of downhole coal mine air cleaner of the invention；
Fig. 2 is a kind of structural representation of the downhole coal mine air cleaner of the invention in A-A directions；
Fig. 3 is the overlooking the structure diagram of a kind of downhole coal mine air cleaner middle sleeve of the invention and flabellum.
In figure：1, bottom hollow shell, 2, top hollow shell, 3, supporting leg, 4, hollow-core construction, 5, air feeding in center through hole
Structure, 6, edge air through hole structure, 7, cartridge type airstrainer, 8, hollow structure, 9, the second round ring magnet, 10,
One round ring magnet, 11, discharge duct, 12, dividing plate, 13, connecting shaft, 14, sleeve, 15, flabellum, 16, admission line, 17,
Inert gas enters passage, 18, exhaust hole structure, 19, support bar, 20, deep bead, 21, helical blade.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Refer to Fig. 1, Fig. 2 and Fig. 3, a kind of embodiment that the present invention is provided：A kind of downhole coal mine air cleaner, bag
Include bottom hollow shell 1, top hollow shell 2 and be fixed on the supporting leg 3 of the basal surface of bottom hollow shell 1, bottom hollow shell
The center inside center and top hollow shell 2 inside body 1 is provided with hollow-core construction 4, the top of the bottom hollow shell 1
The bottom of portion and the top hollow shell 2 is connected by helicitic texture, and the bottom one of the bottom hollow shell 1 is located at institute
The air feeding in center through-hole structure 5 of the bottom centre of bottom hollow shell 1 is stated, the edge of the bottom hollow shell 1 is provided with multiple sides
Edge air through hole structure 6, and the top of the air feeding in center through-hole structure 5 connects the hollow-core construction 4, the edge air inlet is led to
One end of pore structure 6 connects the air feeding in center through-hole structure 5, positioned at the hollow knot inside the bottom hollow shell 1
First round ring magnet 10 is inlayed in side inside structure 4, and a cartridge type air mistake is placed in the inside of the hollow-core construction 4
Filter screen 7, the center inside the cartridge type airstrainer 7 is hollow structure 8, and the bottom of the cartridge type airstrainer 7 is fixed
One the second round ring magnet 9, and the physical dimension of the round ring magnet 9 of first round ring magnet 10 and second is equal
Identical, the bottom of the top hollow shell 2 is provided with multiple discharge ducts 11, and the discharge duct 11 connects the hollow knot
A dividing plate 12, the dividing plate are being fixed in structure 4, the inside of the top hollow shell 2 positioned at the top of the discharge duct 11
12 centrally through bearing fix a connecting shaft 13 through the dividing plate 12, and the connecting shaft 13 is positioned at the dividing plate 12
The axis body of lower section fixes a helical blade 21, and the connecting shaft 13 is socketed a set in the axis body positioned at the top of the dividing plate 12
Multiple longitudinally disposed flabellums 15 are fixed at cylinder 14, the edge of the sleeve 14, and the top hollow shell 2 is positioned at the dividing plate
An admission line 16 is fixed at the position of 12 tops, and the inside of the top hollow shell 2 is provided with a connection hollow knot
The inert gas of structure 4 and admission line 16 enters passage 17, and the inert gas enters song of the passage 17 in transverse plane
Cable architecture.
All parts are nonmetallic materials and are made in the device；Multiple edge air through hole structures 6 are uniformly arranged
One week inside the bottom hollow shell 1 so that the air of surrounding can be homogenized into hollow-core construction 4；Described
One round ring magnet 10 and the second round ring magnet 9 are Nd-Fe-B permanent magnet, this kind of magnetic and mechanical property of permanent magnet
It is stronger；The magnetic phase of the upper surface of the magnetic of the upper surface of first round ring magnet 10 and the second round ring magnet 9
Instead, because the same sex is repelled each other the principle that there is a natural attraction between the sexes, so as to carry out effective fixation to two groups；The helical blade 21 enters
Gas port is located at lower section, can operationally form upward air draught；Multiple flabellums 15 are uniformly arranged on the sleeve
One week of 14 outer surfaces, under the influence of air pressure, advantageously in the rotation of flabellum 15；The top hollow-core construction 2
Top passes through multiple support bars 19 and connects a deep bead 20；The center at the top of the top hollow-core construction 2 is communicated with hollow
Structure 4 and the exhaust hole structure 18 in the external world, break up so as to inert gas when discharging be stopped, reduce air pressure.
Specifically used mode：In present invention work, the equipment is first placed into the region with needs purification, then will poured lazy
Property gas tank body gas outlet by pipeline connect admission line 16, when inert gas inject, due to inert gas entrance
Passage 17 is fashionable entering for angularly disposed, air punching press can be carried out to the side of one of flabellum 15, so that flabellum 15
Constantly rotation, drives helical blade 21 to rotate, because the air generation that the high speed of helical blade 21 rotarily drives inside is upward
Air-flow, in air flow, it is known that upward air flow can drive the air of outside to be sucked from bottom, and the air for sucking
Enter into when in cartridge type airstrainer 7, most granule foreign can be filtered out by cartridge type airstrainer 7, and filtered
Air afterwards is discharged by discharge duct 11, and because each group is not used metal material, and the device is used to drive the device of flabellum
It is gas, so the hair of the spark produced due to friction and the electric spark phenomenon produced due to electric power short circuit will not occur
It is raw, and then ensure that the safety coefficient of environment.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be in other specific forms realized.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires to be limited rather than described above, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as the claim involved by limitation.
Claims (8)
1. a kind of downhole coal mine air cleaner, including bottom hollow shell（1）, top hollow shell（2）Be fixed on bottom
Portion's hollow shell（1）The supporting leg of basal surface（3）, it is characterised in that：Bottom hollow shell（1）Internal center and top is hollow
Housing（2）Internal center is provided with hollow-core construction（4）, the bottom hollow shell（1）Top and the top it is hollow
Housing（2）Bottom by helicitic texture connect, the bottom hollow shell（1）Bottom one be located at the bottom hollow shell
Body（1）The air feeding in center through-hole structure of bottom centre（5）, the bottom hollow shell（1）Edge be provided with multiple edge air inlets
Through-hole structure（6）, and the air feeding in center through-hole structure（5）Top connect the hollow-core construction（4）, the edge air inlet lead to
Pore structure（6）One end connect the air feeding in center through-hole structure（5）, the bottom hollow shell（1）Inside is positioned at described
Hollow-core construction（4）Inlay first round ring magnet in internal side（10）, the hollow-core construction（4）Inside place one
Individual cartridge type airstrainer（7）, the cartridge type airstrainer（7）Internal center is hollow structure（8）, the cartridge type air
Screen pack（7）Bottom fix second round ring magnet（9）, and first round ring magnet（10）With the second circle
Annular permanent magnet（9）Physical dimension all same, the top hollow shell（2）Bottom be provided with multiple discharge ducts（11）,
And the discharge duct（11）Connect the hollow-core construction（4）, the top hollow shell（2）Inside positioned at the exhaust
Pipeline（11）Top fix a dividing plate（12）, the dividing plate（12）Fix one through the dividing plate centrally through bearing
（12）Connecting shaft（13）, the connecting shaft（13）Positioned at the dividing plate（12）The axis body of lower section fixes a helical blade
（21）, the connecting shaft（13）Positioned at the dividing plate（12）The axis body of top is socketed a sleeve（14）, the sleeve（14）
Edge fix multiple longitudinally disposed flabellums（15）, the top hollow shell（2）Positioned at the dividing plate（12）Top
An admission line is fixed at position（16）, the top hollow shell（2）Inside be provided with a connection hollow-core construction（4）
And admission line（16）Inert gas enter passage（17）, and the inert gas enters passage（17）In transverse plane
Curvilinear structures.
2. a kind of downhole coal mine air cleaner according to claim 1, it is characterised in that：Multiple edge air inlets
Through-hole structure（6）It is uniformly arranged on the bottom hollow shell（1）Internal one week.
3. a kind of downhole coal mine air cleaner according to claim 1, it is characterised in that：First annular is forever
Magnet（10）With the second round ring magnet（9）It is Nd-Fe-B permanent magnet.
4. a kind of downhole coal mine air cleaner according to claim 1, it is characterised in that：First annular is forever
Magnet（10）Upper surface magnetic and the second round ring magnet（9）Upper surface magnetic it is opposite.
5. a kind of downhole coal mine air cleaner according to claim 1, it is characterised in that：The helical blade（21）
Air inlet be located at lower section.
6. a kind of downhole coal mine air cleaner according to claim 1, it is characterised in that：Multiple flabellums（15）
It is uniformly arranged on the sleeve（14）One week of outer surface.
7. a kind of downhole coal mine air cleaner according to claim 1, it is characterised in that：The top hollow-core construction
（2）Top pass through multiple support bars（19）One deep bead of connection（20）.
8. a kind of downhole coal mine air cleaner according to claim 1, it is characterised in that：The top hollow-core construction
（2）The center at top is communicated with hollow-core construction（4）With extraneous exhaust hole structure（18）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611208974.4A CN106731315B (en) | 2016-12-23 | 2016-12-23 | A kind of downhole coal mine air filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611208974.4A CN106731315B (en) | 2016-12-23 | 2016-12-23 | A kind of downhole coal mine air filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106731315A true CN106731315A (en) | 2017-05-31 |
| CN106731315B CN106731315B (en) | 2019-04-12 |
Family
ID=58920236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611208974.4A Active CN106731315B (en) | 2016-12-23 | 2016-12-23 | A kind of downhole coal mine air filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106731315B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112915648A (en) * | 2021-01-19 | 2021-06-08 | 丁永慧 | Waste gas surrounding type dead-angle-free treatment device for textile production |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2111389U (en) * | 1990-10-20 | 1992-07-29 | 煤炭科学研究总院重庆分院 | plastic pneumatic local fan for mine |
| CN101666321A (en) * | 2008-09-03 | 2010-03-10 | 淄博矿业集团有限责任公司 | Axial-flow type pneumatic dedusting fan |
| CN201420689Y (en) * | 2009-06-15 | 2010-03-10 | 张尤 | Pneumatic smoke extractor |
| CN201827098U (en) * | 2010-08-27 | 2011-05-11 | 张伟权 | Pneumatic fan |
| CN102072173A (en) * | 2009-11-23 | 2011-05-25 | 建准电机工业股份有限公司 | Heat-radiation fan |
| CN201916222U (en) * | 2010-12-23 | 2011-08-03 | 湖南腾邦重工设备有限公司 | Intelligent emergency ventilator used for mine excavating working surface and branch roadway |
| WO2011145088A2 (en) * | 2010-05-16 | 2011-11-24 | Gooper Hermetic Ltd. | Flexible magnetic sealing apparatus |
| CN202422906U (en) * | 2012-02-07 | 2012-09-05 | 王路安 | Magnetic-suction fixing device |
| CN203090666U (en) * | 2013-03-12 | 2013-07-31 | 盐城市兰丰环境工程科技有限公司 | Filter drum structure of mine dust collector |
| CN105507785A (en) * | 2016-01-22 | 2016-04-20 | 易兵 | Permanent magnetic force based waterproof rubber strip |
| CN205558956U (en) * | 2016-03-16 | 2016-09-07 | 孙剑云 | Decontaminable air's mine ventilation equipment |
-
2016
- 2016-12-23 CN CN201611208974.4A patent/CN106731315B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2111389U (en) * | 1990-10-20 | 1992-07-29 | 煤炭科学研究总院重庆分院 | plastic pneumatic local fan for mine |
| CN101666321A (en) * | 2008-09-03 | 2010-03-10 | 淄博矿业集团有限责任公司 | Axial-flow type pneumatic dedusting fan |
| CN201420689Y (en) * | 2009-06-15 | 2010-03-10 | 张尤 | Pneumatic smoke extractor |
| CN102072173A (en) * | 2009-11-23 | 2011-05-25 | 建准电机工业股份有限公司 | Heat-radiation fan |
| WO2011145088A2 (en) * | 2010-05-16 | 2011-11-24 | Gooper Hermetic Ltd. | Flexible magnetic sealing apparatus |
| CN201827098U (en) * | 2010-08-27 | 2011-05-11 | 张伟权 | Pneumatic fan |
| CN201916222U (en) * | 2010-12-23 | 2011-08-03 | 湖南腾邦重工设备有限公司 | Intelligent emergency ventilator used for mine excavating working surface and branch roadway |
| CN202422906U (en) * | 2012-02-07 | 2012-09-05 | 王路安 | Magnetic-suction fixing device |
| CN203090666U (en) * | 2013-03-12 | 2013-07-31 | 盐城市兰丰环境工程科技有限公司 | Filter drum structure of mine dust collector |
| CN105507785A (en) * | 2016-01-22 | 2016-04-20 | 易兵 | Permanent magnetic force based waterproof rubber strip |
| CN205558956U (en) * | 2016-03-16 | 2016-09-07 | 孙剑云 | Decontaminable air's mine ventilation equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112915648A (en) * | 2021-01-19 | 2021-06-08 | 丁永慧 | Waste gas surrounding type dead-angle-free treatment device for textile production |
| CN112915648B (en) * | 2021-01-19 | 2022-12-06 | 义乌市奥飞创意设计有限公司 | Waste gas surrounding type dead-angle-free treatment device for textile production |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106731315B (en) | 2019-04-12 |
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| CB02 | Change of applicant information |
Address after: 325200 New Era Experimental School No. 1658 Binjiang Avenue, Ruian City, Wenzhou City, Zhejiang Province Applicant after: Lin Ziyuan Address before: 325200 New Era Experimental School, 1658 Binjiang Avenue, Wenzhou City, Zhejiang Province Applicant before: Lin Ziyuan |
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