CN220047991U - Stirring tank and stirring device for battery slurry homogenization - Google Patents
Stirring tank and stirring device for battery slurry homogenization Download PDFInfo
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- CN220047991U CN220047991U CN202321297713.XU CN202321297713U CN220047991U CN 220047991 U CN220047991 U CN 220047991U CN 202321297713 U CN202321297713 U CN 202321297713U CN 220047991 U CN220047991 U CN 220047991U
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- cylinder body
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- battery slurry
- sealing ring
- lower cylinder
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- 238000003756 stirring Methods 0.000 title claims abstract description 40
- 239000002002 slurry Substances 0.000 title claims abstract description 31
- 238000000265 homogenisation Methods 0.000 title claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 156
- 238000001514 detection method Methods 0.000 claims description 20
- 238000002156 mixing Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052744 lithium Inorganic materials 0.000 abstract description 6
- 230000002159 abnormal effect Effects 0.000 abstract description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 16
- 230000000694 effects Effects 0.000 description 13
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 229910001873 dinitrogen Inorganic materials 0.000 description 4
- 230000005856 abnormality Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
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Abstract
The utility model relates to a stirring cylinder and a stirring device for battery slurry homogenization, belongs to the technical field of lithium battery homogenization equipment, and solves the problems that the sealing of the conventional stirring cylinder is easy to be abnormal and difficult to find.
Description
Technical Field
The utility model relates to the technical field of lithium battery homogenate equipment, in particular to a stirring cylinder and a stirring device for battery slurry homogenate.
Background
The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.
In the homogenization stage of the lithium battery, the technology of the slurry is very strict, wherein the control of bubbles in the slurry is particularly important, the bubbles affect the yield of the next coating process, and if the pole piece with abnormal bubbles is not identified, the pole piece is very easy to cause serious problems of insufficient capacity, lithium precipitation and the like after being made into the battery. Thus, a defoaming process in the stirring stage is indispensable.
The most widely used homogenization equipment in the industry at present is a stirrer, and the stirrer is mainly composed of an upper cylinder body, a lower cylinder body and a hydraulic station, wherein the hydraulic station provides hydraulic pressure to lift the lower cylinder body until the lower cylinder body is tightly attached to the upper cylinder body. The defoaming mode of the existing stirrer is to combine the upper cylinder body and the lower cylinder body, and make the two cylinders closely attached through hydraulic pressure to make the O-shaped rings in the two cylinders extruded and deformed to achieve the sealing effect, and then vacuumize the space in the stirring cylinder to suck bubbles in the slurry to achieve the defoaming effect.
The sealing structure in the existing stirrer industry is to extrude a 0-shaped ring for sealing after the lower cylinder rises and the upper cylinder body is closed. The sealing ring is only one, and when the equipment is operated at high speed in a scattered way, the equipment is sealed to be problematic due to vibration, and the equipment is not easy to find.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, and provides a stirring cylinder and a stirring device for battery slurry homogenization, which have good sealing effect and are easy to find when sealing is problematic.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
in a first aspect, an embodiment of the present utility model provides a stirring tank for battery slurry homogenization, including an upper cylinder and a lower cylinder, at least two annular sealing rings are disposed between the upper cylinder and the lower cylinder, at least one sealing chamber is further disposed between the upper cylinder and the lower cylinder, the sealing chamber is disposed between two adjacent sealing rings, and the sealing chamber is in communication with a sealing medium joint and a pressure detecting element joint.
Optionally, the bottom surface of the upper cylinder body and the lower cylinder body is provided with at least two first sealing ring mounting grooves and at least one first sealing chamber area, the first sealing chamber area is arranged between two adjacent first sealing ring mounting grooves, and the distance between the first sealing chamber area and the top surface of the upper cylinder body is smaller than the distance between other parts of the bottom surface of the upper cylinder body and the top surface of the upper cylinder body.
Optionally, the first seal chamber region is an annular region disposed between two adjacent first seal ring mounting grooves.
Optionally, the top surface of the lower cylinder body and the upper cylinder body is provided with at least two second sealing ring mounting grooves matched with the first sealing ring mounting grooves and at least one second sealing chamber area matched with the first sealing chamber area, the second sealing chamber area is arranged between two adjacent second sealing ring mounting grooves, and the distance between the second sealing chamber area and the bottom surface of the lower cylinder body is smaller than the distance between other parts of the top surface of the lower cylinder body and the bottom surface of the lower cylinder body.
Optionally, the second seal chamber region is an annular region disposed between two adjacent second seal ring mounting grooves.
Optionally, the upper cylinder or the lower cylinder is provided with a first channel, and the first channel communicates the sealing chamber with the air pipe joint.
Optionally, the upper cylinder or the lower cylinder is provided with a second channel, which communicates the sealing chamber with the pressure detecting element joint.
Optionally, a plurality of annular sealing rings are coaxially arranged.
Optionally, two sealing rings which are coaxially arranged are arranged between the upper cylinder body and the lower cylinder body, an inner sealing ring and an outer sealing ring are respectively arranged, and a sealing chamber is arranged between the inner sealing ring and the outer sealing ring.
In a second aspect, an embodiment of the present utility model provides a stirring device for battery slurry homogenization, provided with the stirring tank for battery slurry homogenization according to the first aspect, a sealing medium connector connected with a sealing medium supply system, and a pressure detection element connected with the pressure detection element connector.
The beneficial effects of the utility model are as follows:
compared with the traditional stirring cylinder with one sealing ring arranged between the upper cylinder body and the lower cylinder body, the stirring cylinder for battery slurry homogenization has the advantages that the sealing effect is better, at least one sealing chamber is further arranged between the upper cylinder body and the lower cylinder body, the sealing chamber is arranged between the two adjacent sealing rings and is communicated with a sealing medium interface and a pressure detection element interface, and sealing medium can be injected into the sealing chamber through the sealing medium interface, so that the sealing rings are more closely attached to the upper cylinder body and the lower cylinder body, the sealing effect is further improved, the pressure detection element interface can be connected with the pressure detection element, the pressure maintaining condition between the two sealing rings in the sealing chamber can be monitored in real time, if leakage occurs, the sealing effect can be directly fed back, and the leakage is easy to find.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.
FIG. 1 is a schematic view showing the overall structure of embodiment 1 of the present utility model;
FIG. 2 is an exploded view of the whole structure of embodiment 1 of the present utility model;
FIG. 3 is a schematic explosion diagram of the whole structure of embodiment 1 of the present utility model;
FIG. 4 is an exploded view of the overall structure of example 1 of the present utility model;
FIG. 5 is a schematic view of the structure of the upper cylinder of embodiment 1 of the present utility model;
the sealing device comprises an upper cylinder body 1, a lower cylinder body 2, a sealing medium joint 3, a pressure detection element joint 4, a first sealing ring mounting groove 5, a first sealing cavity area 6, a first channel 8, a second channel 9, an inner sealing ring and an outer sealing ring.
Detailed Description
For convenience of description, the words "upper" and "lower" in the present utility model, if they mean only the directions of the words corresponding to the upper and lower directions of the drawings, are not limited to the directions, but are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Example 1
The embodiment provides a stirring tank for battery slurry homogenization, which is used for a homogenization procedure of a lithium battery, and comprises an upper tank body 1 and a lower tank body 2, wherein the upper tank body 1 and the lower tank body 2 are combined to form the whole stirring tank, as shown in fig. 1-4.
The mixing bowl adopts cylindric structure, and is corresponding, go up cylinder body 1 and lower cylinder body 2 and also adopt cylindric structure, and go up cylinder body 1 and lower cylinder body 2 and set up at the equipment end is uncovered for go up cylinder body 1 and lower cylinder body 2 equipment back, the inside space that holds the thick liquids that forms.
In other embodiments, the stirring cylinder adopts a cubic structure, and correspondingly, the upper cylinder body 1 and the lower cylinder body 2 are also of a cubic structure.
At least two sealing rings are arranged between the upper cylinder body 1 and the lower cylinder body 2, and the sealing rings are annular sealing rings.
Compared with the traditional method that one sealing ring is adopted between the cylinder body 1 and the lower cylinder body 2, the sealing effect of adopting at least a plurality of sealing rings is better.
Still be provided with at least one sealed cavity between upper cylinder body 1 and the lower cylinder body 2, sealed cavity adopts annular structure, sets up between adjacent twice sealing washer, and sealed cavity connects 3 and pressure detection element connects 4 with sealed medium, and sealed cavity can be through sealed medium joint injection sealed medium, forms sealedly between adjacent two sealing washer, further improves sealed effect, sealed medium adopts shielding gas or liquid, preferably, sealed medium adopts nitrogen gas, pressure detection element connects 4 can connect pressure detection element, detects sealed medium's pressure, and then judges whether the sealing washer of sealed cavity both sides produces gas leakage, if leak can carry out real-time supervision, can directly feed back sealed effect for leak is found easily.
The bottom end face of the upper cylinder body 1 is an end face for assembling with the lower cylinder body 2, and the top end face of the lower cylinder body 2 is an end face for assembling with the upper cylinder body 1.
As shown in fig. 5, the bottom end surface of the upper cylinder 1 is provided with at least two first sealing ring mounting grooves 5, the top end surface of the lower cylinder 2 is provided with at least two second sealing ring mounting grooves, the second sealing ring mounting grooves are matched with the first sealing ring mounting grooves 5, after the upper cylinder 1 and the lower cylinder 2 are assembled, the corresponding first sealing ring mounting grooves 5 and second sealing ring mounting grooves form a mounting cavity for mounting sealing rings, and after the upper cylinder 1 and the lower cylinder 2 are assembled, the sealing rings are mounted in the mounting cavity.
The bottom end surface of the upper cylinder body 1 is provided with at least one first sealing chamber area 6, the first sealing chamber area 6 is an annular area arranged between two adjacent first sealing ring mounting grooves 5, the distance between the first sealing chamber area 6 and the top surface of the upper cylinder body 1 is smaller than the distance between other areas of the bottom end surface of the upper cylinder body 1 and the top surface of the upper cylinder body, the top end surface of the lower cylinder body 2 is provided with at least one second sealing chamber area matched with the first sealing chamber area, the second sealing chamber area is an annular area arranged between two adjacent second sealing ring mounting grooves, and the distance between the second sealing chamber area and the bottom surface of the lower cylinder body 2 is smaller than the distance between other areas of the top end surface of the lower cylinder body 2 and the bottom surface of the lower cylinder body 2, so that after the upper cylinder body 1 and the lower cylinder body 2 are assembled, the first sealing chamber area 6 and the second sealing chamber area can form a sealing chamber between the upper cylinder body 1 and the lower cylinder body 2.
The upper cylinder 1 or the lower cylinder 2 is provided with a first channel 7, the first channel 7 communicating the sealing chamber with the sealing medium joint 3.
The upper cylinder 1 or the lower cylinder 2 is provided with a second channel 8, the second channel 8 communicating the sealing chamber with the pressure detecting element joint 4.
Further, since the lower cylinder 2 of the stirring cylinder is a moving part and the upper cylinder 1 is a fixed part, in order to facilitate connection of the sealing chamber with the sealing medium supply system and the pressure detecting element, the first channel 7 and the second channel 8 are both provided in the upper cylinder 1, one end of the first channel 7 extends to the first sealing chamber area 6, the other end extends to the outer circumferential surface of the upper cylinder 1 and is connected with the sealing medium joint 3, preferably, the sealing medium joint 3 is in threaded connection with the first channel 7, one end of the second channel 8 extends to the first sealing chamber area 6, the other end extends to the outer circumferential surface of the upper cylinder 1 and is connected with the pressure detecting element joint 4, preferably, the pressure detecting element joint 4 is in threaded connection with the second channel 8.
In this embodiment, the sealing ring sets up twice, be inner sealing ring 9 and outer sealing ring 10 respectively, inner sealing ring 9 and outer sealing ring 10 coaxial arrangement, correspondingly, the bottom face of going up cylinder body 1 sets up twice first sealing ring mounting groove 5, the top face of lower cylinder body 2 sets up twice second sealing ring mounting groove, the last cylinder body 1 bottom end face part between twice first sealing ring mounting groove 5 is first sealed cavity district 6, the distance between first sealed cavity district 6 and the top surface of last cylinder body 1 is less than the distance between the last cylinder body 1 bottom end face part of first sealing ring mounting groove 5 both sides and the top surface of last cylinder body 1, the lower cylinder body top end face part between twice second sealing ring mounting groove is second sealed cavity district, the distance between second sealed cavity district and the bottom surface of lower cylinder body 2 is less than the distance between the lower cylinder body 2 top end face part of second sealing ring mounting groove both sides and the bottom surface of lower cylinder body 2, after the equipment of upper cylinder body 1 and lower cylinder body 2, form sealed cavity between first sealed cavity district 6 and the second sealed cavity district.
In this embodiment, can be through the sealing medium joint to the sealing chamber in injection sealing medium, in this embodiment, sealing medium adopts nitrogen gas, nitrogen gas in the sealing chamber can outwards extrude outer sealing washer 10, inwards extrude interior sealing washer 9, make interior sealing washer 9 and outer sealing washer 10 and go up cylinder body 1 and lower cylinder body 2 more closely laminating, improve sealed effect, the pressure of the interior nitrogen gas of sealing chamber between interior sealing washer 9 and the outer sealing washer 10 can be through the pressure detection component that pressure detection component connects 4 to carry out the response and show, the whole-course feedback of sealed effect can be regarded as to the pressure detection component on the one hand, can carry out trouble shooting through the demonstration of pressure detection component immediately when the sealing washer pressurize effect between upper cylinder body 1 and the lower cylinder body 2 is not good, avoid leaking the difficult problem of being found, on the other hand, can predict the life-span of interior sealing washer 9 and outer sealing washer 10 in advance through the pressure detection component, realize the early warning function of two sealing washers, in order to change the sealing washer in advance.
The nitrogen pressure maintaining another effect makes when the mixer work shakes, after the sealing abnormality appears, the slurry in the mixing tank can be prevented from contacting with air, the stability of the slurry quality in the mixing tank is ensured, and the sealing abnormality has three kinds:
1. when the outer sealing ring 10 fails and the inner sealing ring 9 is normal, the nitrogen is discharged outwards for pressure relief, and no external air enters the stirring cylinder.
2. When the inner sealing ring 9 is invalid and the outer sealing ring 10 is normal, nitrogen can enter the interior of the stirring cylinder, so that vacuum in the stirring cylinder is broken, and no external air enters the interior of the stirring cylinder.
3. When the inner sealing ring 9 and the outer sealing ring 10 are completely invalid, nitrogen can be filled in the inner space of the stirring cylinder, air does not enter the stirring cylinder after being discharged, and at the moment, slurry in the stirring cylinder can be transferred to other stirring cylinders to avoid contacting with external air.
The nitrogen pressure maintaining between the inner sealing ring 9 and the outer sealing ring 10 can prevent the slurry in the stirring cylinder from contacting air from beginning to end, so that one quality stability of the slurry in the whole stirring cylinder is ensured.
Example 2
The embodiment provides a stirring device for battery slurry homogenization, is used for lithium cell homogenization process, is provided with the stirring jar that is used for battery slurry homogenization of embodiment 1, lower cylinder body 2 is connected with hydraulic lifting device, and hydraulic lifting device adopts current equipment can, and hydraulic lifting device is connected with the hydraulic pressure station, sealing medium connects 3 departments to have sealing medium feed mechanism through the pipe connection, and in this embodiment, sealing medium feed mechanism adopts the nitrogen bottle, pressure detection element is installed to pressure detection element connects 4 departments, and pressure detection element adopts pressure sensor.
Other structures of the stirring device may be conventional, and will not be described in detail herein.
While the foregoing description of the embodiments of the present utility model has been presented in conjunction with the drawings, it should be understood that it is not intended to limit the scope of the utility model, but rather, it is intended to cover all modifications or variations within the scope of the utility model as defined by the claims of the present utility model.
Claims (10)
1. The utility model provides a stirring cylinder for battery slurry homogenate, includes cylinder body and lower cylinder body, and its characterized in that is provided with at least twice annular sealing washer between upper cylinder body and the lower cylinder body, still is provided with at least one sealed cavity between upper cylinder body and the lower cylinder body, and sealed cavity sets up between adjacent twice sealing washer, and sealed cavity connects and pressure detection element connects intercommunication with sealed medium.
2. The stirring cylinder for homogenizing battery slurry according to claim 1, wherein the bottom end surface of the upper cylinder body matched with the lower cylinder body is provided with at least two first sealing ring mounting grooves and at least one first sealing chamber area, the first sealing chamber area is arranged between two adjacent first sealing ring mounting grooves, and the distance between the first sealing chamber area and the top surface of the upper cylinder body is smaller than the distance between the other parts of the bottom end surface of the upper cylinder body and the top surface of the upper cylinder body.
3. A mixing bowl for battery slurry homogenization as set forth in claim 2 wherein the first seal chamber region is an annular region disposed between adjacent two of the first seal ring mounting grooves.
4. The stirring cylinder for homogenizing battery slurry according to claim 2, wherein the top surface of the lower cylinder body matched with the upper cylinder body is provided with at least two second sealing ring mounting grooves matched with the first sealing ring mounting grooves and at least one second sealing chamber area matched with the first sealing chamber area, the second sealing chamber area is arranged between two adjacent second sealing ring mounting grooves, and the distance between the second sealing chamber area and the bottom surface of the lower cylinder body is smaller than the distance between the other parts of the top surface of the lower cylinder body and the bottom surface of the lower cylinder body.
5. A mixing bowl for a battery slurry process according to claim 4 wherein the second seal chamber area is an annular area disposed between adjacent second seal ring mounting grooves.
6. A mixing bowl for battery slurry homogenization according to claim 1 wherein the upper or lower bowl is provided with a first passage which communicates the sealed chamber with the air connection.
7. A mixing bowl for battery slurry homogenization according to claim 1 wherein the upper or lower bowl is provided with a second passage which communicates the sealed chamber with the pressure sensing element fitting.
8. A mixing bowl for battery slurry homogenization as recited in claim 1 wherein a plurality of annular sealing rings are coaxially disposed.
9. A mixing bowl for battery slurry homogenization as set forth in claim 1 wherein two coaxially disposed sealing rings are provided between the upper and lower cylinders, an inner sealing ring and an outer sealing ring, respectively, with a sealing chamber therebetween.
10. A stirring device for battery slurry homogenization, characterized in that a stirring cylinder for battery slurry homogenization as set forth in any one of claims 1-9 is provided, a sealing medium joint is connected to a sealing medium supply system, and a pressure detection element is connected to the pressure detection element joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321297713.XU CN220047991U (en) | 2023-05-23 | 2023-05-23 | Stirring tank and stirring device for battery slurry homogenization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321297713.XU CN220047991U (en) | 2023-05-23 | 2023-05-23 | Stirring tank and stirring device for battery slurry homogenization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220047991U true CN220047991U (en) | 2023-11-21 |
Family
ID=88785013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321297713.XU Active CN220047991U (en) | 2023-05-23 | 2023-05-23 | Stirring tank and stirring device for battery slurry homogenization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220047991U (en) |
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2023
- 2023-05-23 CN CN202321297713.XU patent/CN220047991U/en active Active
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