CN106742899B - A kind of double-canopy sealing transfer device - Google Patents
A kind of double-canopy sealing transfer device Download PDFInfo
- Publication number
- CN106742899B CN106742899B CN201611039524.7A CN201611039524A CN106742899B CN 106742899 B CN106742899 B CN 106742899B CN 201611039524 A CN201611039524 A CN 201611039524A CN 106742899 B CN106742899 B CN 106742899B
- Authority
- CN
- China
- Prior art keywords
- sealing
- outer container
- transhipment
- pressurd vessel
- inner pressurd
- 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
Classifications
-
- 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
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/54—Gates or closures
Abstract
The invention belongs to radioactivity material transferring equipments, more particularly to a kind of double-canopy sealing transfer device, for carrying out the transfer of radioactivity material between different chambers, chamber bottom is equipped with transhipment interface, it transports interface to be interconnected by transhipment channel, which includes in transhipment channel, the internal outer container for being placed with inner pressurd vessel；Inner pressurd vessel is equipped with inner pressurd vessel door, the inner pressurd vessel top cover of top setting sealing；It further include being arranged in chamber, transhipment interface capable of being sealed, the sealing cover with hoisting mechanism；Outer container can be connect with transhipment sealing joint, and when outer container is connect with transhipment sealing joint, hoisting mechanism can promote inner pressurd vessel in chamber together while slinging sealing cover upwards.It can be realized the sealing transfer radioactivity material between each chamber；Avoid chamber inner radiation atmosphere and toxic gas leak and the pollution to transhipment channel；With easy to operate, quick, structure is simple, the good advantage of sealing effect.
Description
Technical field
The invention belongs to radioactivity material transferring equipment fields, and in particular to a kind of double-canopy sealing transfer device.
Background technique
In nuclear chemical industry field, production and treatment process to radioactive substance are in multiple hot cells, work box and gloves
It is carried out in the chamber line of case composition.Radioactivity material transfer between each chamber needs the setting transhipment interface in each chamber, respectively
The transhipment interface of chamber can be arranged in chamber bottom by plant designing, can also be arranged in the rear portion or side of chamber.In order to anti-
Only the radioactivity material between chamber occurs pernicious gas and leaking for solid particle in transhipment and pollutes environmental injury human body, needs
Invent a kind of dedicated sealing transfer device that chamber bottom is set.
Summary of the invention
For the needs of the radioactivity material transfer between chamber, the object of the present invention is to provide one kind can be in each chamber
Between sealing transfer radioactivity material transfer device.
To achieve the above objectives, the technical solution adopted by the present invention is that a kind of double-canopy sealing transfer device, is used in difference
The transfer of radioactivity material is carried out between chamber, the chamber bottom is equipped with transhipment interface, and the transhipment interface is logical by transhipment
Road is interconnected, the double containment transfer device, wherein is placed with inner pressurd vessel including being located in the transhipment channel, inside
Outer container；The inner pressurd vessel is equipped with inner pressurd vessel door, the inner pressurd vessel top cover of top setting sealing；It further include being arranged in the case
Interior can be sealed the transhipment interface, the sealing cover with hoisting mechanism；The outer container can be with the transhipment
Sealing joint connection, when the outer container is connect with the transhipment sealing joint, slings sealing cover while institute upwards
Stating hoisting mechanism can promote the inner pressurd vessel into the chamber together.
Further, the transhipment interface is equipped with hollow fixing seat, is between the transhipment interface and the fixing seat
It is tightly connected.
Further, the hoisting mechanism includes the mushroom head for being used to lift crawl being arranged at the top of the sealing cover, if
Set the grapple in the sealing cover bottom；Lifting lug is equipped at the top of the inner pressurd vessel top cover；When the outer container and the transhipment connect
After mouth is tightly connected, when slinging the mushroom head upwards, the grapple can grab the lifting lug, so that the inner pressurd vessel
It slings and enters in the chamber together with the sealing cover.
Further, the bottom margin of the sealing cover is equipped with the first sealing ring, and the sealing cover is put by the fixing seat
It sets on the transhipment interface, can be sealed between the first sealing ring and the fixing seat described in the gravity by the sealing cover
Sealing of the sealing cover to the transhipment interface is realized in connection.
Further, the inside of the chamber bottom plate of the chamber is equipped with pressing device, including can be by the sealing cover pressure
Tightly briquetting on the fixing seat.
Further, the side of the inner pressurd vessel is arranged in the inner pressurd vessel door；The top opening of the outer container is equipped with outer
Vessel flange, to be tightly connected between the outer container and the outer container flange, the inside edge of the outer container flange opening
Equipped with the second sealing ring, when the inner pressurd vessel is placed in the outer container, second is close described in the gravity by the inner pressurd vessel
It is tightly connected between seal and the inner pressurd vessel top cover, realizes sealing of the outer container to the stack shell of the inner pressurd vessel.
Further, inner pressurd vessel top cover side is equipped with spring catch, and outer container flange inner edge, which is equipped with, can accommodate institute
The spring catch limiting slot for stating spring catch, when the inner pressurd vessel is placed in the outer container, the spring catch, spring catch limit
Slot can limit the movement of the inner pressurd vessel.
Further, the outer container by the connection of the outer container flange and the bottom of the fixing seat realize with it is described
The connection for transporting interface, when the outer container, transhipment interface connection, second sealing ring and the bottom of the fixing seat are close
Sealing of the outer container to the transhipment interface is realized in envelope connection.
Further, the outer container bottom connects lead screw by butterfly spring, and the lead screw is for the outer container
It is promoted and decline, the butterfly spring is used to provide the described the pressure between outer container and the fixing seat, guarantee the outer appearance
Sealing between device flange, fixing seat.
Further, the inner pressurd vessel top cover is sealingly disposed in the top of the inner pressurd vessel using welding manner.
The beneficial effects of the present invention are:
1. can be realized the sealing transfer radioactivity material between each chamber；
2. avoiding leaking in radioactivity material transfer process raising middle flask chamber interior radioactivity atmosphere and toxic gas；
3. avoiding the pollution in radioactivity material transfer process to transhipment channel；
4. it is easy to operate, fast；
5. structure is simple, sealing effect is good.
Detailed description of the invention
Fig. 1 is the schematic diagram of double-canopy sealing transfer device described in the specific embodiment of the invention；
In figure: 1- mushroom head, 2- grapple, 3- lifting lug, 4- briquetting, 5- sealing cover, the first sealing ring of 6-, 7- second are sealed
Circle, 8- fixing seat, 9- inner pressurd vessel top cover, 10- inner pressurd vessel, 11- inner pressurd vessel door, 12- outer container, 13- outer container flange, 14- bullet
Spring pin limiting slot, 15- butterfly spring, 16- chamber bottom plate, 17- transport channel, 18- lead screw.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples.
As shown in Figure 1, a kind of double-canopy sealing transfer device provided by the invention, for being radiated between different chambers
The transfer of property material.It is equipped with transhipment interface in each chamber bottom for needing to carry out radioactivity material transfer, transhipment interface is logical
Transhipment channel 17 is crossed to be interconnected.Double containment transfer device provided by the present invention, including outer container 12, inner pressurd vessel 10, sealing
Lid 5, pressing device, fixing seat 8, butterfly spring 15, lead screw 18 etc..
Wherein, fixing seat 8 is arranged on the transhipment interface of chamber, fixing seat 8 be hollow structure, in the present embodiment for
Annular is transported between interface and fixing seat 8 as sealed connection.
Outer container 12 is located in transhipment channel 17, and the inside of outer container 12 is placed with inner pressurd vessel 10；Inner pressurd vessel 10 is equipped with
Inner pressurd vessel door 11, the inner pressurd vessel top cover 9 of sealing is arranged at the top of inner pressurd vessel 10, and inner pressurd vessel top cover 9 uses welding manner sealed set
At the top of inner pressurd vessel 10.(stack shell) side of inner pressurd vessel 10, the opening and closing of inner pressurd vessel door 11 are arranged in inner pressurd vessel door 11
Movement can be completed by the indoor manipulator of case；In the present embodiment, inner pressurd vessel 10 and outer container 12 are cylindrical shape.
The top opening of outer container 12 is equipped with outer container flange 13, connects between outer container 12 and outer container flange 13 for sealing
It connects, the inside edge that outer container flange 13 is open is equipped with the second sealing ring 7, when inner pressurd vessel 10 is placed in outer container 12, by interior
It is tightly connected between the second sealing ring of gravity 7 and inner pressurd vessel top cover 9 of container 10, realizes outer container 12 to the stack shell of inner pressurd vessel 10
Sealing.In the present embodiment, the inner ring of outer container flange 13 is inner conical surface structure, inner pressurd vessel top cover 9 and outer container flange 13
The outer rim being in contact is male cone (strobilus masculinus) structure, and the two is mutually adapted.
When outer container 12 withstands on transhipment interface from below, outer container 12 can be connect with transhipment sealing joint.Outer container
12 realize the connection with transhipment interface by the connection of the bottom of outer container flange 13 and fixing seat 8, when outer container 12, transhipment connect
When mouth connection, the second sealing ring 7 is connect with the sealed bottom of fixing seat 8, realizes the sealings of 12 pairs of outer container transhipment interfaces.
9 side of inner pressurd vessel top cover is equipped with spring catch, and 13 inner edge of outer container flange is equipped with the spring catch that can accommodate spring catch
Limiting slot 14, when inner pressurd vessel 10 is placed in outer container 12, spring catch, spring catch limiting slot 14 can limit inner pressurd vessel 10
Mobile, when inner pressurd vessel 10 is lifted together with sealing cover 5, spring catch, spring catch limiting slot 14 can be detached from.
The bottom part down of outer container 12 is arranged in butterfly spring 15 and lead screw 18, and 12 bottom of outer container passes through butterfly spring 15
Lead screw 18 is connected, lead screw 18 is used for the promotion and decline of outer container 12, when lead screw 18 jacks up outer container 12 upwards, so that outer container
When the outer container flange 13 at 12 top is connected with the bottom of the fixing seat 8 on transhipment interface, butterfly spring 15 is capable of providing
Pressure between outer container 12 and fixing seat 8 guarantees the sealing between outer container flange 13 and fixing seat 8.
Sealing cover 5 is arranged in chamber, can be sealed to transhipment interface, and sealing cover 5 is equipped with hoisting mechanism；When outer
When container 12 is connect with transhipment sealing joint, hoisting mechanism can will be inside outer container 12 while slinging sealing cover 5 upwards
Inner pressurd vessel 12 is promoted in chamber together.
Hoisting mechanism includes the mushroom head 1 for being used to lift crawl that 5 top of sealing cover is arranged in, and is arranged at 5 bottom of sealing cover
The grapple 2 in portion；Lifting lug 3 is equipped at the top of inner pressurd vessel top cover 9；After outer container 12 is connect with transhipment sealing joint, inside chamber
When crane slings mushroom head 1 upwards, grapple 2 can grab the lifting lug 3 on inner pressurd vessel top cover 9, so that inner pressurd vessel 12 is with close
Capping 5 is sling together goes forward side by side in cartonning room.
The bottom margin of sealing cover 5 is equipped with the first sealing ring 6, and sealing cover 5 is placed on transhipment interface by fixing seat 8,
It can be tightly connected by between the first sealing ring of gravity 6 and fixing seat 8 of sealing cover 5, realize 5 pairs of sealing cover transhipment interfaces
Sealing.In the present embodiment, the inner ring of fixing seat 8 is inner conical surface structure, the bottom outer-edge that sealing cover 5 is in contact with fixing seat 8
For male cone (strobilus masculinus) structure, the two is mutually adapted.
Pressing device is located inside chamber, and the inside of the chamber bottom plate 16 of chamber bottom is arranged in, including close for compressing
The briquetting 4 of capping 5, and nut and screw rod on chamber bottom plate 16 is arranged in briquetting 4, pressing device can be by sealing cover 5
It is pressed in fixing seat 8, the compression and release movement of briquetting 4 can be completed by the indoor manipulator of case.
The application of the double-canopy sealing transfer device of one kind provided by finally illustrating the present invention in practice.
1. the inner pressurd vessel 10 of double-canopy sealing transfer device is placed in outer container 12, it is small by the transport in transhipment channel 17
Vehicle, which is transported to, to be needed below the transhipment interface of the chamber bottom to discharge, is transported double-canopy sealing using the elevating mechanism of travelling bogie and is filled
Top set enters in the transhipment interface, to guarantee the second sealing ring 7 in the opening of outer container 12 (outer container flange 13) and transhipment interface
Fixing seat 8 be tightly engaged into, realize 12 pairs of outer container transhipment interfaces sealing (namely chamber with transport the close of interchannel
Envelope).
2. discharging the pressing device (briquetting 4) being pressed on sealing cover 5 by the indoor manipulator of case.
3. being sling using chamber crane and automatically grabbing device, rise after catching the mushroom head 1 of hoisting mechanism, grapple 2 is caught interior
The lifting lug 3 of container 10, so that inner pressurd vessel 10 and the sealing cover 5 of chamber transhipment interface rise together, into chamber.
4. opening the inner pressurd vessel door 11 of inner pressurd vessel 10 using the indoor manipulator of case, puts the material for needing to shift into, shut
Inner pressurd vessel door 11.
5. inner pressurd vessel 10 is put into outer container 12 by control cabinet indoor crane, meanwhile, sealing cover 5 is also relay
It sets in fixing seat 8；First sealing ring 6 of sealing cover 5 is bonded with fixing seat 8, completes sealing；Inner pressurd vessel top cover 9 and outer container
The fitting of the second sealing ring 7 on flange 13, completes sealing, and the spring catch on inner pressurd vessel top cover 9 heads into outer container flange 13
In spring catch limiting slot 14.
6. briquetting 4 is compressed sealing cover 5 using case indoor manipulator.
7. travelling bogie lifting device falls double-canopy sealing transfer device, it is detached from the transhipment interface of chamber, transports transhipment to
Target chamber executes same operation, material is taken out, the final material transfer realized between chamber.
Device of the present invention is not limited to embodiment described in specific embodiment, those skilled in the art according to
Technical solution of the present invention obtains other embodiments, also belongs to the scope of the technical innovation of the present invention.
Claims (8)
1. a kind of double-canopy sealing transfer device, for carrying out the transfer of radioactivity material, the chamber bottom between different chambers
Portion is equipped with transhipment interface, and the transhipment interface is interconnected by transhipment channel (17), the double-canopy sealing transfer device,
It is characterized in: the outer container (12) for being placed with inner pressurd vessel (10) including being located in transhipment channel (17), inside；The content
Device (10) is equipped with inner pressurd vessel door (11), and the inner pressurd vessel top cover (9) of top setting sealing, the inner pressurd vessel door (11) is arranged in institute
The side of inner pressurd vessel (10) is stated, the top opening of the outer container (12) is equipped with outer container flange (13), the outer container (12)
To be tightly connected between the outer container flange (13), the inside edge of outer container flange (13) opening is equipped with the second sealing
Enclose (7), the inner pressurd vessel (10) be placed on the outer container (12) it is interior when, second described in the gravity by the inner pressurd vessel (10)
It is tightly connected between sealing ring (7) and the inner pressurd vessel top cover (9), realizes the outer container (12) to the inner pressurd vessel (10)
The sealing of stack shell；The inner pressurd vessel top cover (9) is sealingly disposed in the top of the inner pressurd vessel (10) using welding manner；Further include
It is arranged in the chamber, the transhipment interface can be sealed, the sealing cover (5) with hoisting mechanism；The outer appearance
Device (12) can be connect with the transhipment sealing joint, when the outer container (12) is connect with the transhipment sealing joint, to
On sling the hoisting mechanism while sealing cover (5) and the inner pressurd vessel (12) can be promoted together and arrive the chamber
It is interior.
2. double-canopy sealing transfer device as described in claim 1, it is characterized in that: the transhipment interface is equipped with hollow fixation
Seat (8) is tightly connected between the transhipment interface and the fixing seat (8).
3. double-canopy sealing transfer device as claimed in claim 2, it is characterized in that: the hoisting mechanism includes being arranged described close
The mushroom head (1) for being used to lift crawl at the top of capping (5), is arranged the grapple (2) in the sealing cover (5) bottom；In described
Lifting lug (3) are equipped at the top of container cap (9)；After the outer container (12) is connect with the transhipment sealing joint, sling upwards
When mushroom head (1), the grapple (2) can grab the lifting lug (3), so that the inner pressurd vessel (12) is with described close
Capping (5) is sling together and is entered in the chamber.
4. double-canopy sealing transfer device as claimed in claim 2, it is characterized in that: the bottom margin of the sealing cover (5) is equipped with
First sealing ring (6), the sealing cover (5) is placed on the transhipment interface by the fixing seat (8), by the sealing
It can be tightly connected between the first sealing ring (6) and the fixing seat (8) described in the gravity for covering (5), realize the sealing cover (5)
Sealing to the transhipment interface.
5. double-canopy sealing transfer device as claimed in claim 4, it is characterized in that: the inside of the chamber bottom plate (16) of the chamber
Equipped with pressing device, including the briquetting (4) that can be pressed on the sealing cover (5) on the fixing seat (8).
6. double-canopy sealing transfer device as claimed in claim 2, it is characterized in that: inner pressurd vessel top cover (9) side is equipped with bullet
Spring pin, outer container flange (13) inner edge is equipped with the spring catch limiting slot (14) that can accommodate the spring catch, when described interior
Container (10) be placed on the outer container (12) it is interior when, the spring catch, spring catch limiting slot (14) can limit the content
The movement of device (10).
7. double-canopy sealing transfer device as claimed in claim 2, it is characterized in that: the outer container (12) passes through the outer container
The connection with the transhipment interface is realized in the connection of the bottom of flange (13) and the fixing seat (8), when the outer container (12),
When transporting interface connection, second sealing ring (7) connect with the sealed bottom of the fixing seat (8), realizes the outer container
(12) to the sealing of the transhipment interface.
8. double-canopy sealing transfer device as claimed in claim 7, it is characterized in that: the outer container (12) bottom passes through butterfly bullet
Spring (15) connects lead screw (18), and the lead screw (18) is used for the promotion and decline of the outer container (12), the butterfly spring
(15) pressure being used to provide the described between outer container (12) and the fixing seat (8) guarantees the outer container flange (13), consolidates
Sealing between reservation (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611039524.7A CN106742899B (en) | 2016-11-21 | 2016-11-21 | A kind of double-canopy sealing transfer device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611039524.7A CN106742899B (en) | 2016-11-21 | 2016-11-21 | A kind of double-canopy sealing transfer device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106742899A CN106742899A (en) | 2017-05-31 |
| CN106742899B true CN106742899B (en) | 2019-10-29 |
Family
ID=58974254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611039524.7A Active CN106742899B (en) | 2016-11-21 | 2016-11-21 | A kind of double-canopy sealing transfer device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106742899B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339425B (en) * | 2017-06-26 | 2021-06-18 | 中国核电工程有限公司 | Double-ring sealing device for controlling cross contamination |
| CN107680701B (en) * | 2017-09-22 | 2021-09-17 | 中国核电工程有限公司 | Double-barrel-cover sealing device |
| CN108831577B (en) * | 2018-05-17 | 2021-07-20 | 中国核电工程有限公司 | Automatic opening, closing and locking mechanism for transfer container |
| CN109378100A (en) * | 2018-09-20 | 2019-02-22 | 原子高科股份有限公司 | A kind of sealing bucket of double-canopy structure |
| CN110544545B (en) * | 2018-09-20 | 2021-01-05 | 原子高科股份有限公司 | Sealed transferring method for radioactive substance |
| CN109378099A (en) * | 2018-09-20 | 2019-02-22 | 原子高科股份有限公司 | A kind of double-canopy water-tight equipment opens buckle closure mechanism |
| CN110265169B (en) * | 2019-08-14 | 2024-04-09 | 中国工程物理研究院总体工程研究所 | Inner packaging container sealing structure for radioactive article under ultra-high speed impact |
| CN112649154A (en) * | 2020-12-14 | 2021-04-13 | 北京星航机电装备有限公司 | Movable nuclear gas tightness that transports container with sealed detects frock |
| CN114684556A (en) * | 2022-03-02 | 2022-07-01 | 中国核电工程有限公司 | Vertical sealing transfer device |
| CN115339778B (en) * | 2022-09-13 | 2023-07-28 | 上海阿波罗机械股份有限公司 | Radioactive liquid transport container |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB924013A (en) * | 1960-05-24 | 1963-04-18 | Atomic Energy Authority Uk | Improvements in or relating to shielded containers for nuclear fuel elements |
| FR2906638B1 (en) * | 2006-09-29 | 2008-12-19 | Lemer Prot Anti X Par Abrevati | NEW ARMORED CONTAINER STRUCTURE FOR TRANSPORTING AND STORING A RADIOACTIVE SOURCE FOR MEDICAL USE |
| CN203535970U (en) * | 2013-09-26 | 2014-04-09 | 中国辐射防护研究院 | Transport container for sealed radioactive source |
| CN104485145B (en) * | 2014-10-29 | 2017-03-15 | 中国核电工程有限公司 | The double-canopy sealing device of gravity type |
| CN104401668B (en) * | 2014-10-29 | 2016-08-24 | 中国核电工程有限公司 | A kind of Chain conveyer transporter |
-
2016
- 2016-11-21 CN CN201611039524.7A patent/CN106742899B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106742899A (en) | 2017-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106742899B (en) | A kind of double-canopy sealing transfer device | |
| CN101916605A (en) | Complete device of spent fuel storage tank and shielding cover of nuclear power plant | |
| PH12014502385A1 (en) | Bulk storage container and bulk material handling assembly therewith | |
| CN211237747U (en) | Radioactive substance storage container | |
| CN206179535U (en) | Industry plutonium dioxide material transfer container and airtight interfacing apparatus of glove box | |
| CN215730895U (en) | Lead shielding container for waste filter element | |
| CN110544545B (en) | Sealed transferring method for radioactive substance | |
| CN211235094U (en) | On-line sampler | |
| CN206177030U (en) | Compact thermal sintering ore deposit movement system | |
| CN112133464B (en) | Medium-low radioactivity double-cover sealing ring and waste barrel using same | |
| CN107161625A (en) | Sealed compartment for hazardous materials transportation, the transportation resources using the sealed compartment | |
| CN206179530U (en) | MOX powder pelletization receiving device | |
| CN208119903U (en) | A kind of groove tank | |
| CN106719265B (en) | The box allocation and transportation equipment of spotted maigre fingerling suitable for long-distance allocation and transportation | |
| CN206989833U (en) | Latching member with pressure relief | |
| CN212502935U (en) | Conveying device for collecting, harbouring and shipping powdery materials | |
| CN209684511U (en) | A kind of solid waste incineration transport box | |
| CN209064864U (en) | Elevator integrated sealing head shell | |
| CN210837203U (en) | Radioactive feed liquid temporary storage tank for hot chamber | |
| CN217605381U (en) | Intermittent grain sucking mechanism for sampling rod | |
| CN204102727U (en) | A kind of containing soaking system and test | |
| CN108328108A (en) | A kind of intelligent security guard transport case | |
| CN107339425A (en) | A kind of double-round sealing device for controlling cross pollution | |
| CN211003671U (en) | Be applicable to high temperature material bucket formula dust collection device | |
| CN209039548U (en) | A kind of nickel recyclable device convenient for controlling pressure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |