CN115849019A - Gas conveying device for lithium battery negative electrode powder material and using method thereof - Google Patents
Gas conveying device for lithium battery negative electrode powder material and using method thereof Download PDFInfo
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- CN115849019A CN115849019A CN202211525364.2A CN202211525364A CN115849019A CN 115849019 A CN115849019 A CN 115849019A CN 202211525364 A CN202211525364 A CN 202211525364A CN 115849019 A CN115849019 A CN 115849019A
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- 239000000843 powder Substances 0.000 title claims abstract description 47
- 239000000463 material Substances 0.000 title claims abstract description 45
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000007789 sealing Methods 0.000 claims abstract description 120
- 230000007480 spreading Effects 0.000 claims description 29
- 238000003892 spreading Methods 0.000 claims description 29
- 238000003780 insertion Methods 0.000 claims description 21
- 230000037431 insertion Effects 0.000 claims description 21
- 238000003825 pressing Methods 0.000 claims description 7
- 230000007246 mechanism Effects 0.000 claims description 3
- 230000005484 gravity Effects 0.000 description 11
- 230000009471 action Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 210000001503 joint Anatomy 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 3
- 206010057071 Rectal tenesmus Diseases 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 239000010406 cathode material Substances 0.000 description 2
- 239000007773 negative electrode material Substances 0.000 description 2
- 208000012271 tenesmus Diseases 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The invention discloses a lithium battery negative powder material gas conveying device and a using method thereof, and relates to the technical field of gas conveying, wherein the lithium battery negative powder material gas conveying device comprises a conveying pipe, a connecting sleeve, a connecting structure and a plurality of opening pieces, wherein sealing connecting rings are arranged at two ends of the conveying pipe respectively, the inner walls of the sealing connecting rings are arranged in a spherical manner, and the diameter of one side of each sealing connecting ring facing the inside of the conveying pipe is larger; the connecting sleeve is movably arranged at the end part of the conveying pipe, the outer wall of the connecting sleeve is arranged in a spherical surface matched with the inner wall of the sealing connecting ring, and when the outer wall of the connecting sleeve is attached to the inner wall of the sealing connecting ring, the connecting sleeve and the sealing connecting ring are in a concentric state; the connecting sleeve is used for connecting two adjacent connecting sleeves; a plurality of said struts are located between the two ducts. The sealing connecting ring, the connecting sleeve and the opening piece are arranged, the opening piece is used for opening the sealing connecting ring, and the sealing connecting ring is abutted against the connecting sleeve in an outward opening mode to realize sealing.
Description
Technical Field
The invention relates to the technical field of gas conveying, in particular to a gas conveying device for a lithium battery negative electrode powder material and a using method thereof.
Background
With the idea of environmental protection and energy conservation going deep into the heart, the lithium battery industry, new energy projects become more and more attractive, the capacity is larger and larger, the well-spraying type development is about to come, and the global occupancy is increased year by year. Most of the negative electrode materials of the lithium battery are micron-sized powder materials, the powder of the crushed negative electrode materials such as graphite is fine and tends to be finer, and dust is easy to fly due to the fact that the powder is not fine. The production environment is extremely bad, and the material production turnover is very difficult. Labor cost is greatly increased, and the original straightforward production mode becomes more and more unsuitable for the current industrial upgrading. The vacuum air flow conveying process of the powder enables the automatic production and unmanned workshop assumption of the cathode material to become possible, and the vacuum air conveying enables the automatic, unmanned and dustless production of the cathode material to be realized.
Because the transport distance is longer, a pipeline for carrying negative pole powder material is corresponding also very long, generally all can adopt the concatenation of multisection pipeline to form complete pipeline circuit, prior art generally is sealed through the flange cooperation, dock two pipeline seal, moreover, the steam generator is simple in structure, but because flange joint extrudees two flanges inwards through the bolt and realizes connecting, and the ring flange is planar structure, long pipeline is under the action of gravity, pipeline between two strong points can descend, if the tie point just in between two strong points, for a long time, refer to fig. 1, the ring flange can appear deformation under the action of gravity of pipeline, lead to ring flange lower extreme seam grow, make junction leakproofness worsen, the condition of gas leakage appears, influence the interior vacuum pneumatic transport of pipeline, seriously, still can lead to negative pole powder material to spill, negative pole powder material after leaking can pollute the atmospheric environment, be inhaled by the human body and arouse the disease easily, therefore need to design lithium cell negative pole powder material gas conveying equipment urgently.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, the pipeline connection is realized by inwards extruding a flange, the flange plate deforms under the action of gravity of the pipeline, so that the lower end seam of the flange plate becomes large, the sealing performance of the joint is poor, and the negative electrode powder material leaks.
In order to achieve the purpose, the invention adopts the following technical scheme:
lithium cell negative pole powder material gas conveying equipment includes:
the conveying pipe is characterized in that two ends of the conveying pipe are respectively provided with a sealing connecting ring, the inner wall of each sealing connecting ring is arranged in a spherical shape, and the diameter of one side, facing the inside of the conveying pipe, of each sealing connecting ring is larger;
the connecting sleeve is movably arranged at the end part of the conveying pipe, the outer wall of the connecting sleeve is arranged in a spherical surface shape matched with the inner wall of the sealing connecting ring, and when the outer wall of the connecting sleeve is attached to the inner wall of the sealing connecting ring, the connecting sleeve and the sealing connecting ring are in a concentric state;
the connecting structure is used for connecting two adjacent connecting sleeves;
the plurality of spreading pieces are positioned between the two conveying pipes, a plurality of insertion holes corresponding to the spreading pieces are formed in the end parts of the conveying pipes, and the spreading pieces are connected with the insertion holes in a sliding manner;
after the two adjacent connecting sleeves are butted, the two adjacent sealing connecting rings can move reversely to abut against the corresponding connecting sleeves through the opening piece.
Preferably, the connecting mechanism comprises a first connecting pipe fixedly arranged at one end, far away from the conveying pipe, of one connecting sleeve, and a second connecting pipe fixedly arranged at one end, far away from the conveying pipe, of the connecting sleeve, wherein the outer wall of the first connecting pipe is provided with an external thread, the inner wall of the second connecting pipe is provided with an internal thread, and the external thread is matched with the internal thread.
Preferably, a sealing convex ring is fixedly arranged in the second connecting pipe, a sealing strip is fixedly arranged on the side wall of the sealing convex ring, and when the two adjacent conveying pipes are in butt joint, the first connecting pipe is screwed into the second connecting pipe and is abutted against the sealing strip.
Preferably, the outer walls of the first connecting pipe and the second connecting pipe are both fixedly provided with operating blocks, and the cross sections of the operating blocks are arranged in a regular hexagon shape.
Preferably, the inner wall of the conveying pipe is fixedly provided with an installation ring corresponding to the connection sleeve, and a pressing spring is arranged between the installation ring and the connection sleeve, so that the connection sleeve tends to be tightly pressed against the sealing connection ring.
Preferably, the strutting piece includes thread bush and two threaded rods, two threaded rods threaded connection is at the both ends of thread bush respectively, and two screw thread opposite direction on the threaded rod, the threaded rod is kept away from thread bush one end and is fixed and be provided with the connecting block, connecting block and jack sliding connection.
Preferably, the cross sections of the jack and the connecting block are polygonal and consistent in shape.
Preferably, a sealing cavity is formed in the insertion hole, a sliding block is arranged in the sealing cavity in a sealing sliding mode, a return spring is arranged between the sliding block and the inner bottom of the sealing cavity, the sliding block partially extends into the insertion hole, an annular groove is formed in the inner wall of the sealing connection ring, and an air bag communicated with the sealing cavity is arranged in the annular groove.
The use method of the gas conveying device for the negative electrode powder material of the lithium battery comprises the following steps of:
s1: butting the conveying pipes, coaxially placing the two conveying pipes, clamping the operation block by using a tool, and reversely rotating to enable the first connecting pipe to be screwed into the second connecting pipe to realize sealed connection;
s2: adjusting the spreading piece, rotating the threaded sleeve to extend the spreading piece until the distance between the two connecting blocks is larger than the distance between the two conveying pipes, and at the moment, respectively inserting the two connecting blocks into the corresponding jacks to carry out circumferential limiting;
s3: the spreading piece is utilized to tightly abut against the conveying pipe, after two connecting blocks on the same spreading piece are respectively inserted into corresponding jacks, the threaded sleeve is rotated to enable the two threaded rods to simultaneously extend into the jacks until the connecting blocks abut against the inner bottom of the jacks, the spreading piece outwards supports the conveying pipe, and the sealing connecting ring and the connecting sleeve are extruded to realize sealing;
s4: the sealing performance is improved, the connecting block can push the sliding block to move towards the jack, so that the sliding block moves towards the inside of the sealing cavity, the air pressure inside the sealing cavity is increased, the air bag communicated with the sealing cavity expands due to air blowing, and the air bag is in full contact with the outer wall of the connecting sleeve.
Compared with the prior art, the invention has the following advantages:
1. according to the invention, the sealing connecting ring, the connecting sleeve and the spreading member are arranged, after the connecting sleeve is connected, the spreading member is used for spreading the sealing connecting ring, the sealing connecting ring is abutted against the connecting sleeve in an outward spreading mode to realize sealing, and the strength between the two conveying pipes is supported by the plurality of spreading members.
2. According to the invention, the sealing cavity, the sliding block, the reset spring and the air bag are arranged, after the two conveying pipes are spread by the spreading member, the connecting block is pressed against the sliding block, the sliding block moves towards the inside of the sealing cavity, the air bag swells, and the air bag is tightly attached between the sealing connecting ring and the connecting sleeve, so that the sealing property between the sealing connecting ring and the connecting sleeve is favorably improved, the risk of leakage at the connecting part of the pipelines is further reduced, and the safety of the device is improved.
Drawings
FIG. 1 is a schematic structural view of a prior art flange connection in a deformed state;
FIG. 2 is a schematic view of the overall structure of the gas delivery device for negative electrode powder material of lithium battery according to the present invention;
FIG. 3 is a schematic cross-sectional structural view of a gas delivery device for negative electrode powder material of lithium battery according to the present invention;
FIG. 4 is a schematic view of a partial cross-sectional structure of a gas delivery device for negative electrode powder material of a lithium battery according to the present invention;
FIG. 5 is a schematic structural diagram of a first connection pipe in the gas delivery device for negative electrode powder material of lithium battery according to the present invention;
FIG. 6 is a schematic structural diagram of a second connection tube in the gas delivery device for negative electrode powder material of lithium battery according to the present invention;
FIG. 7 is a schematic structural diagram of an initial state of a gas delivery device for a negative electrode powder material of a lithium battery according to the present invention;
FIG. 8 is a schematic structural diagram of a deformation state of the gas conveying device for negative electrode powder material of a lithium battery according to the present invention;
fig. 9 is a schematic structural diagram of a spreader in a gas delivery device for negative electrode powder material of a lithium battery according to the present invention.
In the figure: 1. a delivery pipe; 2. sealing the connecting ring; 3. connecting sleeves; 4. a spreader; 41. a threaded sleeve; 42. a threaded rod; 43. connecting blocks; 5. a jack; 6. a first connecting pipe; 7. a second connecting pipe; 8. a sealing convex ring; 9. a sealing strip; 10. an operation block; 11. pressing the spring; 12. sealing the cavity; 13. a slider; 14. a return spring; 15. an air bag; 16. and (7) installing a ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
The embodiment of the invention provides a gas conveying device for a lithium battery cathode powder material and a using method thereof, and solves the problems that in the prior art, the connection of pipelines is realized by inward extrusion of flanges, the flanges deform under the action of gravity of the pipelines, the joints at the lower ends of the flanges become large, the sealing performance of the joints becomes poor, and the leakage of the cathode powder material occurs.
For better understanding of the above technical solutions, the following detailed descriptions will be provided in conjunction with the drawings and the detailed description of the technical solutions
Referring to fig. 2-4, the gas conveying device for the negative electrode powder material of the lithium battery comprises a conveying pipe 1, wherein the conveying pipe 1 is the minimum unit for carrying out negative electrode powder material by the device, the conveying pipe 1 can be spliced according to the distance required by the negative electrode powder material, the two ends of the conveying pipe 1 are respectively provided with a sealing connecting ring 2, the sealing connecting rings 2 and the conveying pipe 1 are integrally formed during processing, the sealing performance between the sealing connecting rings 2 and the conveying pipe 1 is improved, the inner wall of each sealing connecting ring 2 is arranged in a spherical shape, the middle of each sealing connecting ring 2 is arranged in a penetrating mode, and the inner wall of each sealing connecting ring 2 is an intercepting part on the spherical surface.
When the outer wall of the connecting sleeve 3 is attached to the inner wall of the sealing connecting ring 2, the connecting sleeve 3 and the sealing connecting ring 2 are in a concentric state, the outer wall of the connecting sleeve 3 is completely attached to the inner wall of the sealing connecting ring 2 at the moment, sealing is achieved, and when the connecting sleeve 3 rotates around the circle center position at a certain angle, the connecting sleeve 3 and the sealing connecting ring 2 still keep a sealing state, so that the connecting position of the conveying pipe 1 is subjected to the action of gravity for a long time, when the lower end of the conveying pipe is stressed and tends to open outwards, the connecting sleeve 3 can rotate with the sealing connecting ring 2 to offset the deformation caused by the gravity, the connecting position of the conveying pipe 1 keeps a sealing effect, the risk that the connecting position of the conveying pipe 1 is leaked is reduced, and the stability of a negative electrode powder material is guaranteed.
Connection structure for connect two adjacent adapter sleeves 3, accessible connection structure butt joint end to end between many conveyer pipes 1, when using, according to the planning of circuit, can dock adapter sleeve 3, make conveyer pipe 1 interconnect form long pipeline, make negative pole powder material can follow gas station to appointed gas unit.
Referring to fig. 4-6, the connection mechanism includes a first connection pipe 6 fixedly disposed at one end of one of the connection sleeves 3 far away from the delivery pipe 1, the first connection pipe 6 is disposed coaxially with the connection sleeve 3, a second connection pipe 7 is fixedly disposed at one end of the other one of the connection sleeves 3 far away from the delivery pipe 1, the second connection pipe 7 is disposed coaxially with the connection sleeve 3, an outer wall of the first connection pipe 6 is provided with an external thread, an inner wall of the second connection pipe 7 is provided with an internal thread, the external thread is adapted to the internal thread, after the first connection pipe 6 is coaxially abutted to the second connection pipe 7, the first connection pipe 6 and the second connection pipe 7 are rotated in opposite directions, the first connection pipe 6 is screwed into the second connection pipe 7, thereby realizing a sealed connection between the first connection pipe 6 and the second connection pipe 7, and at this time, a sealed pipeline for conveying the negative electrode powder material is formed inside the two delivery pipes 1.
Referring to fig. 5-6, a sealing convex ring 8 is fixedly arranged in a second connecting pipe 7, a sealing strip 9 is fixedly arranged on the side wall of the sealing convex ring 8, when two adjacent conveying pipes 1 are butted, the first connecting pipe 6 is screwed into the second connecting pipe 7 and tightly abuts against the sealing strip 9, the sealing strip 9 is matched with the first connecting pipe 6, the first connecting pipe 6 is pressed to deform the sealing strip 9 after reaching a limit position in the screwed second connecting pipe 7, sealing is realized between the first connecting pipe 6 and the sealing convex ring 8 at the moment, the sealing performance of connection between the first connecting pipe 6 and the second connecting pipe 7 is improved, and the risk of leakage of a seam between the first connecting pipe 6 and the second connecting pipe 7 is caused.
Referring to fig. 5-6, the outer walls of the first connecting pipe 6 and the second connecting pipe 7 are both fixedly provided with an operation block 10, the section of the operation block 10 is arranged in a regular hexagon shape, the first connecting pipe 6 and the second connecting pipe 7 which are in threaded connection are movably arranged on the corresponding conveying pipe 1 and lack of circumferential limitation, when the first connecting pipe 6 is rotated, the second connecting pipe 7 can possibly rotate along with the first connecting pipe, the operation block 10 is arranged, the section of the operation block 10 is arranged in a regular hexagon shape, an installer can use tools conveniently, the first connecting pipe 6 and the second connecting pipe 7 are circumferentially limited, and the first connecting pipe 6 and the second connecting pipe 7 can be connected more tightly.
Referring to fig. 3, an installation ring 16 corresponding to the connection sleeve 3 is fixedly installed on the inner wall of the conveying pipe 1, a pressing spring 11 is arranged between the installation ring 16 and the connection sleeve 3, one end of the pressing spring 11 is fixedly arranged on the installation ring 16, the other end of the pressing spring abuts against the side wall of the connection sleeve 3, the connection sleeve 3 tends to abut against the sealing connection ring 2 under the elastic action of the pressing spring 11, the connection sleeve 3 and the sealing connection ring 2 are kept sealed, the connection pipe I6 and the connection pipe II 7 arranged on the connection sleeve 3 can extend out of the sealing connection ring 2, the connection sleeve 3 can freely rotate in the circumferential direction, the connection pipe I6 and the connection pipe II 7 can be conveniently in rotary abutting joint, and the operation difficulty of abutting and installing the conveying pipe 1 is reduced.
A plurality of 4 that strut, strut 4 can carry out the axial and stretch out and draw back, be favorable to reversely strutting two conveyer pipes 1, a plurality of 4 that strut are located between two conveyer pipes 1, conveyer pipe 1 tip sets up a plurality of jacks 5 that correspond the setting of strut 4, jack 5 distributes around conveyer pipe 1 axial equidistance, guarantee the stability that strut 4 supported between two conveyer pipes 1, strut 4 and jack 5 sliding connection, after two adjacent adapter sleeves 3 accomplish the butt joint, place strut 4 between two conveyer pipes 1, can make two adjacent sealed go-between 2 reverse motion and the tight of adapter sleeve 3 that corresponds through strut 4, and after stretching strut 4, make strut 4 outwards withstand two conveyer pipes 1, make sealed go-between 2 and adapter sleeve 3 closely laminate, keep the leakproofness, and through the support of strut 4, can play the purpose of reinforcing connecting pipe one 6 and connecting pipe two 7 junction, reduce the not hard up risk of atress between connecting pipe one 6 and the connecting pipe two 7.
Referring to fig. 1 and 7-8, the mode of traditional flange joint inwards extrudees the connection, conveyer pipe 1 is under the action of gravity, the condition of can appear making the tight loose down, this application adopts outwards to strut through strutting 4 cooperation seal go-between 2 and adapter sleeve 3, make and extrude the mode of being connected between seal go-between 2 and the adapter sleeve 3, along with the effect of gravity, make conveyer pipe 1 junction tenesmus, two conveyer pipes 1 are outwards stretched, then can make the junction more firm, reduce the risk that conveyer pipe 1 junction leads to negative pole powder material to reveal because of the bottom gap of expanding of action of gravity, be favorable to improving conveyer pipe 1's the performance of preventing leaking, guarantee the stable transport of negative pole powder material.
Referring to fig. 9, the spreading member 4 includes a threaded sleeve 41 and two threaded rods 42, the two threaded rods 42 are respectively screwed at two ends of the threaded sleeve 41, and the directions of the threads on the two threaded rods 42 are opposite, so that the two threaded rods 42 are circumferentially limited, the threaded sleeve 41 is rotated, the two threaded rods 42 can move in opposite directions, the two threaded rods 42 can simultaneously extend outwards by rotating the threaded sleeve 41, the spreading member 4 is extended, the threaded rod 42 is far away from one end of the threaded sleeve 41 and is fixedly provided with a connecting block 43, the connecting block 43 is slidably connected with the jack 5, the connecting block 43 is matched with the jack 5, the positioning of the spreading member 4 on the conveying pipe 1 is facilitated, and the spreading member 4 is guaranteed to be uniformly distributed between the two conveying pipes 1.
Referring to fig. 9, the cross sections of the insertion hole 5 and the connection block 43 are polygonal and have the same shape, and the insertion hole 5 and the connection block 43 which are polygonal are matched with each other, so that the connection block 43 is circumferentially limited after the connection block 43 is inserted into the insertion hole 5, and at the moment, the connection block 43 only allows axial sliding along the insertion hole 5, and the threaded sleeve 41 can be rotated to adjust the position of the threaded rod 42.
Referring to fig. 4, a sealing cavity 12 is formed in the insertion hole 5, the cross section of the sealing cavity 12 is smaller than that of the insertion hole 5, therefore, when the connecting block 43 moves into the insertion hole 5, an outward pushing force can be applied to the conveying pipes 1 when the bottom of the insertion hole 5 is pressed against, so that the two conveying pipes 1 are away from each other, a sliding block 13 is arranged in the sealing cavity 12 in a sealing and sliding manner, a return spring 14 is arranged between the sliding block 13 and the inner bottom of the sealing cavity 12, so that the sliding block 13 partially extends into the insertion hole 5, when the connecting block 43 moves towards the insertion hole 5, the sliding block 13 is pushed to move towards the sealing cavity 12, and the return spring 14 is compressed, an annular groove is formed in the inner wall of the sealing connecting ring 2, an air bag 15 communicated with the sealing cavity 12 is arranged in the annular groove, the air bag 15 is in a deflated state in an initial state, so that the sealing connecting ring 2 is attached and butted with the connecting sleeve 3, when the sliding block 13 moves towards the sealing cavity 12, the air pressure in the sealing cavity 12 is increased, so that the air bag 15 communicated with the outer wall of the connecting sleeve 3 is fully contacted with the outer wall of the connecting sleeve, which is beneficial to improve the sealing performance of the connecting sleeve 2 and the connecting ring 3, and further reduce the risk of the connection device.
The specific working principle of the invention is as follows:
the use method of the gas conveying device for the negative electrode powder material of the lithium battery comprises the following steps:
s1: butting the conveying pipes 1, coaxially placing the two conveying pipes 1, clamping the operating block 10 by using a tool, and reversely rotating to ensure that the first connecting pipe 6 is screwed into the second connecting pipe 7 to realize sealed connection;
s2: adjusting the spreading member 4, rotating the threaded sleeve 41 to extend the spreading member 4 until the distance between the two connecting blocks 43 is larger than the distance between the two conveying pipes 1, and at the moment, respectively inserting the two connecting blocks 43 into the corresponding jacks 5 to carry out circumferential limiting;
s3: the conveying pipe 1 is abutted by the aid of the spreading pieces 4, after the two connecting blocks 43 on the same spreading piece 4 are respectively inserted into the corresponding insertion holes 5, the threaded sleeves 41 are rotated, the two threaded rods 42 simultaneously extend into the insertion holes 5 until the connecting blocks 43 abut against the inner bottom of the insertion holes 5, the conveying pipe 1 is outwardly supported by the spreading pieces 4, and the sealing connecting ring 2 and the connecting sleeve 3 are extruded to achieve sealing;
s4: the sealing performance is improved, the connecting block 43 can push the sliding block 13 to move towards the jack 5, the sliding block 13 moves towards the inside of the sealing cavity 12, the air pressure inside the sealing cavity 12 is increased, the air bag 15 communicated with the sealing cavity is expanded by air blowing, the air bag 15 is fully contacted with the outer wall of the connecting sleeve 3, the sealing performance between the sealing connecting ring 2 and the connecting sleeve 3 is favorably improved, the risk of leakage at the joint of the conveying pipe 1 is further reduced, and the safety of the device is improved.
Along with the effect of gravity, make conveyer pipe 1 junction tenesmus, two conveyer pipes 1 are outwards stretched, then can make the junction more firm, seal go-between 2 and adapter sleeve 3 are the sphere setting, belong to concentric state under the state of sealed laminating, even angular deviation has appeared between the conveyer pipe 1 of two connections, seal go-between 2 and adapter sleeve 3 still are in concentric state after the position state changes, consequently seal go-between 2 and adapter sleeve 3 still can keep a sealed state, reduce the risk that conveyer pipe 1 junction leads to negative pole powder material to reveal because of the bottom gap that expands out of action of gravity, be favorable to improving conveyer pipe 1's leak-proof performance, guarantee the stable transport of negative pole powder material.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. A gas delivery device for a negative electrode powder material of a lithium battery, comprising:
the conveying pipe comprises a conveying pipe (1), wherein sealing connecting rings (2) are arranged at two ends of the conveying pipe (1), the inner walls of the sealing connecting rings (2) are arranged in a spherical shape, and the diameter of one side, facing the interior of the conveying pipe (1), of each sealing connecting ring (2) is larger;
the connecting sleeve (3) is movably arranged at the end part of the conveying pipe (1), the outer wall of the connecting sleeve (3) is arranged in a spherical surface shape matched with the inner wall of the sealing connecting ring (2), and when the outer wall of the connecting sleeve (3) is attached to the inner wall of the sealing connecting ring (2), the connecting sleeve (3) and the sealing connecting ring (2) are in a concentric state;
the connecting structure is used for connecting two adjacent connecting sleeves (3);
the supporting device comprises a plurality of supporting pieces (4), wherein the supporting pieces (4) are positioned between two conveying pipes (1), a plurality of jacks (5) arranged corresponding to the supporting pieces (4) are formed in the end parts of the conveying pipes (1), and the supporting pieces (4) are connected with the jacks (5) in a sliding mode;
after the two adjacent connecting sleeves (3) are butted, the two adjacent sealing connecting rings (2) can move reversely to abut against the corresponding connecting sleeves (3) through the opening piece (4).
2. The gas conveying device for the negative electrode powder material of the lithium battery as claimed in claim 1, wherein the connecting mechanism comprises a first connecting pipe (6) fixedly arranged at one end of one connecting sleeve (3) far away from the conveying pipe (1), a second connecting pipe (7) fixedly arranged at one end of the other connecting sleeve (3) far away from the conveying pipe (1), an external thread is arranged on the outer wall of the first connecting pipe (6), an internal thread is arranged on the inner wall of the second connecting pipe (7), and the external thread is matched with the internal thread.
3. The gas conveying device for the negative electrode powder material of the lithium battery as claimed in claim 2, wherein a sealing convex ring (8) is fixedly arranged in the second connecting pipe (7), a sealing strip (9) is fixedly arranged on the side wall of the sealing convex ring (8), and when two adjacent conveying pipes (1) are butted, the first connecting pipe (6) is screwed into the second connecting pipe (7) and is abutted against the sealing strip (9).
4. The negative electrode powder material gas conveying device for the lithium battery as claimed in claim 2, wherein the outer walls of the first connecting pipe (6) and the second connecting pipe (7) are both fixedly provided with an operating block (10), and the cross section of the operating block (10) is arranged in a regular hexagon shape.
5. The negative electrode powder material gas conveying device for the lithium battery as claimed in claim 1, wherein a mounting ring (16) corresponding to the connecting sleeve (3) is fixedly mounted on the inner wall of the conveying pipe (1), and a pressing spring (11) is arranged between the mounting ring (16) and the connecting sleeve (3) to enable the connecting sleeve (3) to tend to be pressed against the sealing connecting ring (2).
6. The gas conveying device for powder materials of negative electrodes of lithium batteries as claimed in claim 1, wherein the spreading member (4) comprises a threaded sleeve (41) and two threaded rods (42), the two threaded rods (42) are respectively threaded at two ends of the threaded sleeve (41), the threads on the two threaded rods (42) are in opposite directions, a connecting block (43) is fixedly arranged at one end of the threaded rod (42) far away from the threaded sleeve (41), and the connecting block (43) is slidably connected with the insertion hole (5).
7. The gas delivery device of negative electrode powder material for lithium battery as claimed in claim 6, wherein the cross-section of the insertion hole (5) and the connection block (43) is a polygonal arrangement with a uniform shape.
8. The negative powder material gas conveying device for the lithium battery as claimed in claim 1, wherein a sealing cavity (12) is formed in the insertion hole (5), a sliding block (13) is arranged in the sealing cavity (12) in a sealing and sliding manner, a return spring (14) is arranged between the sliding block (13) and the bottom in the sealing cavity (12) to enable the sliding block (13) to partially extend into the insertion hole (5), an annular groove is formed in the inner wall of the sealing connection ring (2), and an air bag (15) communicated with the sealing cavity (12) is arranged in the annular groove.
9. Method for using a gas delivery device for a negative powder material of a lithium battery, comprising the gas delivery device for a negative powder material of a lithium battery according to any one of claims 1 to 8, characterized in that it comprises the following steps:
s1: butting the conveying pipes (1), coaxially placing the two conveying pipes (1), clamping the operating block (10) by using a tool, and reversely rotating to ensure that the first connecting pipe (6) is screwed into the second connecting pipe (7) to realize sealed connection;
s2: adjusting the spreading piece (4), rotating the threaded sleeve (41) to extend the spreading piece (4) until the distance between the two connecting blocks (43) is larger than the distance between the two conveying pipes (1), and at the moment, respectively inserting the two connecting blocks (43) into the corresponding jacks (5) to carry out circumferential limiting;
s3: the conveying pipe (1) is abutted by the aid of the spreading pieces (4), after two connecting blocks (43) on the same spreading piece (4) are respectively inserted into corresponding jacks (5), the threaded sleeve (41) is rotated, two threaded rods (42) simultaneously extend into the jacks (5) until the connecting blocks (43) abut against the inner bottom of the jacks (5), the conveying pipe (1) is outwardly supported by the spreading pieces (4), and the sealing connecting ring (2) and the connecting sleeve (3) are extruded to achieve sealing;
s4: the sealing performance is improved, the connecting block (43) can push the sliding block (13) to the movement of the jack (5), so that the sliding block (13) moves in the sealing cavity (12), the air pressure in the sealing cavity (12) is increased, the air bag (15) communicated with the sealing cavity is inflated, and the air bag (15) is fully contacted with the outer wall of the connecting sleeve (3).
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| CN115849019B (en) | 2023-10-20 |
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