CN109533584B - Transport container for shipping uranium dioxide fuel pellets - Google Patents
Transport container for shipping uranium dioxide fuel pellets Download PDFInfo
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- CN109533584B CN109533584B CN201811139662.1A CN201811139662A CN109533584B CN 109533584 B CN109533584 B CN 109533584B CN 201811139662 A CN201811139662 A CN 201811139662A CN 109533584 B CN109533584 B CN 109533584B
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- shell
- sealed container
- container
- pellet
- uranium dioxide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
- B65D25/02—Internal fittings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/02—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
Abstract
The invention relates to a transport container for shipping uranium dioxide fuel pellets, which comprises a shell, wherein an outer sealed container is arranged in the shell, an inner sealed container is arranged in the outer sealed container, a pellet box is arranged in the inner sealed container, a uranium dioxide pellet is placed in the pellet box, the shell of the uranium dioxide pellet container, the outer sealed container, the inner sealed container and the pellet box are used for heavy protection, the damage of the uranium dioxide pellet caused by traffic accidents in the transport process can be avoided, the container has the functions of fire prevention, water prevention and shock resistance, and the critical safety of a freight bag in the transport process can be ensured.
Description
Technical Field
The invention relates to the field of transportation equipment, in particular to a transportation container for shipping uranium dioxide fuel pellets.
Background
Fuel pellets are small pieces of fuel, usually cylindrical, that make up the fuel elements used in nuclear reactors. The fuel pellets are the core of the fuel element and are also a source of energy for the nuclear power plant. Fuel pellets are commonly referred toUranium dioxide fuel pellet (UO)2A core block). UO2The melting point of the core block is about 2800 ℃, the irradiation stability is good, the corrosion resistance to water is good, and the compatibility with various metal materials is good. Albeit UO2Pellets have low radioactivity levels, but as a radioactive substance, they also belong to the seventh category of dangerous goods. Furthermore, UO2The economic value of the core block is high, the quality requirement is strict, and the UO is ensured under the condition of transportation accidents2Integrity of the core block to prevent UO2The core block is scattered, the economic loss and the social influence are reduced, and a special packaging container for shipping UO needs to be designed2And (3) a core block.
UO2Pellet transport container loading UO2The core block is an AF type goods package, and UO is ensured under the condition of accident2The pellet was intact. The container is internally provided with polyethylene foamed plastic, the melting point of the polyethylene foamed plastic is about 150 ℃, and a heat insulating material is specially designed for ensuring the mechanical property of the polyethylene foamed plastic. UO2The pellets are fissile material and, given sufficient moderation (e.g. by water immersion) and sufficient fissile material quality, nuclear criticality may occur and the containment is required to have good sealing properties.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a transport container for shipping uranium dioxide fuel pellets.
In order to achieve the purpose, the invention adopts the technical scheme that:
a transport container for shipping uranium dioxide fuel pellets comprises a shell, wherein an outer sealing container is arranged in the shell, an inner sealing container is arranged in the outer sealing container, a pellet box is arranged in the inner sealing container, the uranium dioxide pellets are placed in the pellet box, the casing includes shell and inner shell, the four corners department of shell inner wall is equipped with the right angle steel sheet, inner shell and right angle steel sheet fixed connection, fill the aluminium silicate cotton blanket between shell and the inner shell, the open-top position of casing is equipped with the apron, the edge of apron is equipped with the angle steel backup pad, the fixed hanger plate in top of angle steel backup pad, the apron below is equipped with the aluminium silicate cotton blanket of outsourcing steel casing, fixed damping plate on the chamber wall of the below of the aluminium silicate cotton blanket of outsourcing steel casing and the inner shell's the inner chamber, the damping plate of the aluminium silicate cotton blanket below of outsourcing steel casing and the damping plate on the inner shell chamber wall enclose into antidetonation sealed chamber, the external seal container is located.
Furthermore, the outer sealed container comprises an outer sealed container shell, an upper outer sealed container cover is arranged at the opening at the top of the outer sealed container shell, a lifting lug is arranged on the side face of the upper outer sealed container cover, the upper outer sealed container cover is connected with the outer sealed container shell in a sealing mode through a bolt, a sealing ring is arranged at the contact position of the upper outer sealed container cover and the outer sealed container shell, outer sealed container damping plates are arranged on the cavity wall of the inner cavity of the outer sealed container shell and the bottom of the upper outer sealed container cover, and the inner sealed container is located in the inner cavity of the outer sealed container shell and is supported and coated through the outer sealed container damping plates.
Furthermore, the inner sealing container comprises an inner sealing container shell, the inner sealing container shell is composed of an upper inner sealing container shell and a lower inner sealing container shell, supporting blocks are arranged on two sides of the lower inner sealing container shell, flanges on two sides of the upper inner sealing container shell are connected with the supporting blocks in a sealing mode through bolts, sealing rings are arranged at contact positions of the flanges and the supporting blocks, and a handle is installed at the top of the upper inner sealing container shell.
Furthermore, the pellet box comprises a pellet box shell and a pellet box upper cover which is arranged at the top of the pellet box shell and is movably connected with the pellet box shell, female buttons are arranged on two sides of the pellet box upper cover, male buttons corresponding to the female buttons are arranged on two sides of the pellet box shell, and polyethylene foam plastic plates are coated on the top of the pellet box upper cover and the bottom of the pellet box shell.
Furthermore, a plurality of transverse polyethylene foam plastic clapboards and longitudinal polyethylene foam plastic clapboards are arranged in the core block box shell, the transverse polyethylene foam plastic clapboards and the longitudinal polyethylene foam plastic clapboards divide the inner cavity of the core block box shell into a plurality of core block arranging cavities, and the uranium dioxide core block is placed in the core block arranging cavities.
Furthermore, the bottom of the shell is supported on a support, and the support consists of four longitudinal rib plates and two cover plates which are horizontally arranged to form a forklift hole.
Further, the shock absorption plates and the outer sealing container shock absorption plates are paulownia wood shock absorption plates, the paulownia wood shock absorption plates placed on the side faces are vertical grains, and the paulownia wood shock absorption plates placed on the top face and the bottom face are transverse grains.
Further, the shell is fixedly connected with the cover plate through flanges and bolts, and the upper flange and the lower flange are sealed through XB350 asbestos rubber pads.
The invention has the beneficial effects that: the shell of the transportation container is internally provided with an outer sealing container, the outer sealing container is internally provided with an inner sealing container, the inner sealing container is internally provided with a core block box, and a uranium dioxide core block, UO (uranium dioxide) is placed in the core block box2The core block is protected by the shell of the container, the outer sealing container, the inner sealing container and the core block box, and the UO caused by traffic accidents in the transportation process can be avoided2The damage of the core block, the container has the functions of fire prevention, water prevention and shock resistance, and can ensure the critical safety of the goods package in the transportation process.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the housing of the present invention;
FIG. 3 is a schematic structural view of an outer sealed container of the present invention;
FIG. 4 is a schematic structural view of an inner sealed container of the present invention;
FIG. 5 is a schematic view of the construction of the cartridge of the present invention;
fig. 6 is a schematic view of the interior of the cartridge of the present invention.
Detailed Description
As shown in fig. 1 and 2, a transportation container for shipping uranium dioxide fuel pellets comprises a shell 1, an outer sealed container 2 is arranged in the shell 1, an inner sealed container 3 is arranged in the outer sealed container 2, a pellet box 4 is arranged in the inner sealed container 3, uranium dioxide pellets 5 are placed in the pellet box 4, the shell 1 comprises an outer shell 11 and an inner shell 12, right-angle steel plates 13 are arranged at four corners of the inner wall of the outer shell 11, the inner shell 12 is fixedly connected with the right-angle steel plates 13, an aluminum silicate cotton blanket 14 is filled between the outer shell 11 and the inner shell 12, a cover plate 15 is arranged at an opening position at the top of the shell 1, an angle steel support plate 16 is arranged at a corner of the cover plate 15, a hanging plate 17 is fixed above the angle steel support plate 16, an aluminum silicate cotton blanket 14 externally wrapped by the steel shell is arranged below the cover plate 15, a damping plate 18 is fixed below the aluminum silicate cotton blanket 14 externally wrapped by the steel shell and on, the vertical lines of the lateral surface of the paulownia wood damping plate, the transverse lines of the top surface and the bottom surface, the damping plate 18 below the angle steel supporting plate 16 and the damping plate 18 on the wall of the inner shell 12 cavity form an anti-seismic sealed cavity 19, and the outer sealed container 2 is positioned in the anti-seismic sealed cavity 19 and is supported and coated by the damping plate 18.
The shell 1 serves as a first layer structure of the container, and mainly functions as: 1) placing and hoisting two layers of sealed containers and pellet box groups inside; 2) the aluminum silicate cotton blanket 14 wrapped in the shell is an important heat insulation layer, so that the heat transfer inwards under the condition of fire accidents can be effectively reduced; 3) paulownia wood is used as a damping material, can reduce dynamic load acting on a sealed container, protects structural elements of a sealing barrier, and a flange of a cover plate 15 is a 10mm thick S30408 stainless steel plate, and the cover plate 15 is a 3mm thick stainless steel plate. The cover plate 15 is provided with a hanging plate 17 and an angle iron support plate 16, so that the lifting and stacking are convenient, and in addition, the lower edge of the angle iron support plate 16 and the flange protection plate can effectively avoid the flange and the bolt from being directly collided. No. 2 (standard type) aluminum silicate cotton blanket (density is 100 kg/m) with the thickness of 100mm is filled in the angle steel support plate 163) Preventing the conduction of external heat inwardly through the cover plate 15. The bottom of the angle steel support plate 16 is designed with a cross grain paulownia wood with the thickness of 55mm and is fixed by a right angle steel plate and an ST5.5 self-tapping screw.
The outer shell 11 and the inner shell 12 are in a structure coated by an 80# (d is 8mm) stainless steel angle steel frame and an S30408 stainless steel plate with the thickness of 2mm, and the stability is good. The cavity between the outer shell 11 and the inner shell 12 is filled with a No. 2 (standard) aluminum silicate cotton blanket (density 100 kg/m) with a thickness of 100mm3) And prevents external heat from being conducted inward through the housing. The bottom of the shell 1 is supported on a support 10, the support 10 is composed of four longitudinal rib plates and two cover plates which are horizontally arranged to form a forklift hole 101, forking and stacking are facilitated, and four corners of the bottom plate are respectively provided with 18 through holes for fixing a container and the bottom of a carriage in the transportation process.
The upper flange and the lower flange are connected by 30M 12A 2-70 hexagon socket head cap bolts, wherein 2 sets of 4 flange lead seal bolts are provided, 2 bolts are respectively used at opposite angles, and 2 bolts at the same angle are respectively lead sealed. And an XB350 asbestos rubber gasket is used for sealing between the upper flange and the lower flange.
Further, as shown in fig. 3, the outer sealed container 2 includes an outer sealed container casing 21, an outer sealed container upper cover 22 is disposed at an opening at the top of the outer sealed container casing 21, a lifting lug 25 is disposed on a side surface of the outer sealed container upper cover 22, the outer sealed container upper cover 22 is hermetically connected to the outer sealed container casing 21 through a bolt, a sealing ring 23 is disposed at a contact position between the outer sealed container upper cover 22 and the outer sealed container casing 21, an outer sealed container damping plate 24 is disposed on both a cavity wall of an inner cavity of the outer sealed container casing 21 and a bottom of the outer sealed container upper cover 22, and the inner sealed container 3 is located in the inner cavity of the outer sealed container casing 21 and is supported and coated by the outer sealed container damping plate 24.
The outer sealed container shell 21 is formed by welding S32168 stainless steel plates with the thickness of 5mm, the external dimension is 418mm × 354mm × 300mm, the outer sealed container is a second-layer structure of the container and is also a first-layer waterproof structure of the container;
the number of the lugs 25 designed on the upper cover 22 of the outer sealed container is four, the hole size of the lug is 15, and the plate thickness is 6 mm. The sealing performance of the upper cover 22 of the outer sealed container and the shell 21 of the outer sealed container is ensured by a sealing surface matched with a tongue-and-groove and a natural rubber sealing ring 23 with the thickness of 10 mm. The outer sealed container shell 21 is internally lined with an outer sealed container damping plate 24 made of paulownia wood with the thickness of 40-50mm and used for reducing the dynamic load of the inner sealed container 3.
Further, as shown in fig. 4, the inner sealed container 3 includes an inner sealed container housing, the inner sealed container housing is composed of an inner sealed container upper housing 31 and an inner sealed container lower housing 32, support blocks 33 are arranged on two sides of the inner sealed container lower housing 32, flanges on two sides of the inner sealed container upper housing 31 are hermetically connected with the support blocks 33 through bolts 34, a sealing ring 35 is arranged at a contact position of the flanges and the support blocks 33, and a handle 36 is mounted on the top of the inner sealed container upper housing 31, so that the container can be moved conveniently.
The shell of the inner sealed container is formed by welding S32168 stainless steel plates with the thickness of 5mm, the external dimension is 326mm × 262mm × 189mm, and the inner sealed container is a third-layer structure of the container and is also a second-layer waterproof structure of the container;
further, as shown in fig. 5 and 6, the pellet box 4 includes a pellet box housing 41 and a pellet box upper cover 42 movably connected to the top of the pellet box housing 41, female fasteners 43 are disposed on two sides of the pellet box upper cover 42, male fasteners 44 corresponding to the female fasteners 43 are disposed on two sides of the pellet box housing 41, and polyethylene foam plastic plates 45 are coated on the top of the pellet box upper cover 42 and the bottom of the pellet box housing 41 to prevent the pellet box from colliding with each other during transportation.
A plurality of transverse polyethylene foam clapboards 46 and longitudinal polyethylene foam clapboards 47 are arranged in the core block box shell 41, the inner cavity of the core block box shell 41 is divided into a plurality of core block arranging cavities by the transverse polyethylene foam clapboards 46 and the longitudinal polyethylene foam clapboards 47, and the uranium dioxide core blocks 5 are placed in the core block arranging cavities.
The pellet box shell 41 is formed by stamping an S30408 stainless steel plate with the thickness of 1mm, the external dimension is 137mm × 90mm × 70mm, the uranium dioxide pellet block 5 is placed in the pellet placement cavity and supported by a transverse polyethylene foam plastic partition plate 46 and a longitudinal polyethylene foam plastic partition plate 47, and the transverse polyethylene foam plastic partition plate 46 and the longitudinal polyethylene foam plastic partition plate 47 play a role in fixing the uranium dioxide pellet block 5 and preventing the uranium dioxide pellet block 5 from colliding.
The inside of a shell 1 of the transportation container is provided with an outer sealing container 2, the inside of the outer sealing container 2 is provided with an inner sealing container 3, the inside of the inner sealing container 3 is provided with a pellet box 4, a uranium dioxide pellet 5 and a UO are placed in the pellet box 42The core block is protected by the shell 1 of the container, the outer sealed container 2, the inner sealed container 3 and the core block box 4, so that UO caused by traffic accidents in the transportation process can be avoided2The damage of the core block, the container has the functions of fire prevention, water prevention and shock resistance, and can ensure the critical safety of the goods package in the transportation process.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A transportation container for loading and transporting uranium dioxide fuel pellets comprises a shell, wherein an outer sealing container is arranged in the shell, an inner sealing container is arranged in the outer sealing container, a pellet box is arranged in the inner sealing container, and uranium dioxide pellets are placed in the pellet box, and the transportation container is characterized in that the shell comprises an outer shell and an inner shell, a right-angle steel plate is arranged at the edge of the inner wall of the outer shell, the inner shell is fixedly connected with the right-angle steel plate, an aluminum silicate cotton blanket is filled between the outer shell and the inner shell, a cover plate is arranged at the opening position of the top of the shell, an angle steel support plate is arranged at the edge of the cover plate, a hanging plate is fixed above the angle steel support plate, an aluminum silicate cotton blanket externally wrapped with a steel shell is arranged below the aluminum silicate cotton blanket externally wrapped with the steel shell, damping plates are fixed on the cavity wall of an inner cavity of, the outer sealed container is positioned in the anti-seismic sealed cavity and is supported and coated by the damping plate;
the pellet box comprises a pellet box shell and a pellet box upper cover which is arranged at the top of the pellet box shell and movably connected with the pellet box shell, female buttons are arranged on two sides of the pellet box upper cover, male buttons corresponding to the female buttons are arranged on two sides of the pellet box shell, and polyethylene foam plastic plates are coated on the top of the pellet box upper cover and the bottom of the pellet box shell;
the core block box comprises a core block box shell and is characterized in that a plurality of transverse polyethylene foam plastic clapboards and longitudinal polyethylene foam plastic clapboards are arranged in the core block box shell, the inner cavity of the core block box shell is divided into a plurality of core block arranging cavities by the transverse polyethylene foam plastic clapboards and the longitudinal polyethylene foam plastic clapboards, and uranium dioxide core blocks are arranged in the core block arranging cavities.
2. The transportation container for shipping uranium dioxide fuel pellets according to claim 1, wherein the outer sealed container comprises an outer sealed container shell, an upper outer sealed container cover is arranged at the top opening of the outer sealed container shell, lifting lugs are arranged on the side face of the upper outer sealed container cover, the upper outer sealed container cover is in sealing connection with the outer sealed container shell through bolts, a sealing ring is arranged at the contact position of the upper outer sealed container cover and the outer sealed container shell, damping plates for the outer sealed container are arranged on the cavity wall of the inner cavity of the outer sealed container shell and the bottom of the upper outer sealed container cover, and the inner sealed container is located in the inner cavity of the outer sealed container shell and is supported and coated through the damping plates for the outer sealed container.
3. The transport container for shipping uranium dioxide fuel pellets according to claim 2, wherein the inner sealed container comprises an inner sealed container shell, the inner sealed container shell consists of an upper inner sealed container shell and a lower inner sealed container shell, supporting blocks are arranged on two sides of the lower inner sealed container shell, flanges on two sides of the upper inner sealed container shell are connected with the supporting blocks in a sealing mode through bolts, sealing rings are arranged at the contact positions of the flanges and the supporting blocks, and handles are arranged at the top of the upper inner sealed container shell.
4. A transport vessel for shipping uranium dioxide fuel pellets according to claim 1, wherein the bottom of the shell is supported on a support comprising four longitudinal ribs and two horizontally disposed lids forming a forklift aperture.
5. A transport vessel for the shipment of uranium dioxide fuel pellets as recited in claim 2, wherein the shock absorbing plates, the outer containment shock absorbing plate are paulownia wood shock absorbing plates, the paulownia wood shock absorbing plates placed on the sides are vertical striations, and the paulownia wood shock absorbing plates placed on the top and bottom surfaces are horizontal striations.
6. A transport vessel for shipping uranium dioxide fuel pellets according to claim 1, wherein the outer shell and the cover plate are fixedly connected by flanges and bolts, and the upper and lower flanges are sealed by an XB350 asbestos rubber gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811139662.1A CN109533584B (en) | 2018-09-28 | 2018-09-28 | Transport container for shipping uranium dioxide fuel pellets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811139662.1A CN109533584B (en) | 2018-09-28 | 2018-09-28 | Transport container for shipping uranium dioxide fuel pellets |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109533584A CN109533584A (en) | 2019-03-29 |
| CN109533584B true CN109533584B (en) | 2020-07-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811139662.1A Active CN109533584B (en) | 2018-09-28 | 2018-09-28 | Transport container for shipping uranium dioxide fuel pellets |
Country Status (1)
| Country | Link |
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| CN (1) | CN109533584B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114891186B (en) * | 2022-06-02 | 2024-02-02 | 陕西特种橡胶制品有限公司 | Preparation method of foam functional material for uranium dioxide pellet powder transportation equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8808458D0 (en) * | 1988-04-11 | 1988-05-11 | Metal Box Plc | Food containers |
| DE102005032839B4 (en) * | 2005-07-14 | 2007-04-26 | delta T Gesellschaft für Medizintechnik mbH | Lockable container |
| CN106429048A (en) * | 2015-08-13 | 2017-02-22 | 中核新能核工业工程有限责任公司 | Container for natural uranium hexafluoride transportation |
| CN207015797U (en) * | 2017-06-08 | 2018-02-16 | 中国人民解放军理工大学 | A kind of priming system storage and conveying box |
| CN207550955U (en) * | 2017-10-19 | 2018-06-29 | 天津东方宜信物流有限公司 | Transport isobutene storage device |
| CN207810283U (en) * | 2018-01-03 | 2018-09-04 | 四川元规真空科技有限公司 | A kind of vacuum thermal insulation case |
-
2018
- 2018-09-28 CN CN201811139662.1A patent/CN109533584B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8808458D0 (en) * | 1988-04-11 | 1988-05-11 | Metal Box Plc | Food containers |
| DE102005032839B4 (en) * | 2005-07-14 | 2007-04-26 | delta T Gesellschaft für Medizintechnik mbH | Lockable container |
| CN106429048A (en) * | 2015-08-13 | 2017-02-22 | 中核新能核工业工程有限责任公司 | Container for natural uranium hexafluoride transportation |
| CN207015797U (en) * | 2017-06-08 | 2018-02-16 | 中国人民解放军理工大学 | A kind of priming system storage and conveying box |
| CN207550955U (en) * | 2017-10-19 | 2018-06-29 | 天津东方宜信物流有限公司 | Transport isobutene storage device |
| CN207810283U (en) * | 2018-01-03 | 2018-09-04 | 四川元规真空科技有限公司 | A kind of vacuum thermal insulation case |
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| Publication number | Publication date |
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| CN109533584A (en) | 2019-03-29 |
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