CN209848803U - Lithium battery slurry dispersing equipment - Google Patents
Lithium battery slurry dispersing equipment Download PDFInfo
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- CN209848803U CN209848803U CN201920282928.1U CN201920282928U CN209848803U CN 209848803 U CN209848803 U CN 209848803U CN 201920282928 U CN201920282928 U CN 201920282928U CN 209848803 U CN209848803 U CN 209848803U
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Abstract
The utility model relates to a lithium cell production facility technical field, concretely relates to lithium cell thick liquids dispersion equipment, include the agitating unit that closes thick liquid to thick liquids and the grinder that grinds thick liquids, the agitating unit includes the mixer, the grinder includes the sand mill, the mixer and the sand mill form thick liquids circulation disperse system through being used for supplying the first pipeline that thick liquids in the sand mill flowed to the mixer and being used for supplying the second pipeline that thick liquids of mixer flowed to the sand mill to correspond the connection; the sand mill is adopted to disperse and grind the slurry to achieve uniform dispersion, and the nano-scale slurry can be uniformly dispersed; through carrying out circulation once or many times, the mixer forms circulation system with the sand mill promptly, reduces the dispersion dead angle, guarantees that the thick liquids are in the high turbulence and the shearing environment that preparation in-process is not stopped, improves the dispersion quality and the stability of thick liquids.
Description
Technical Field
The utility model relates to a lithium cell production facility technical field, concretely relates to lithium cell thick liquids dispersion equipment.
Background
The lithium battery is a lithium ion battery, and the lithium battery has the advantages of high working voltage, long cycle life, low self-discharge rate, no memory effect, environmental friendliness and the like, and is a main energy product at present.
The slurry mixing is a key process for preparing the lithium battery slurry, and the quality of the slurry mixing quality has important influence on the consistency, the internal resistance, the coating and other processing performances of the lithium battery. At present, the anode and cathode slurry is mainly mixed and dispersed by adopting a double-planet type stirrer, a grinder, a high-speed dispersion machine and other equipment to stir and disperse the slurry independently, but parameters such as viscosity, fineness and the like of the slurry are different at different positions of the slurry, so that the consistency and stability of the slurry are influenced.
To above problem, the chinese utility model patent that the grant bulletin number is CN206229295U discloses a stirring dispersion equipment of lithium ion battery thick liquids, including being used for carrying out the stirred tank that stirs to thick liquids and the liquid film deconcentrator that grinds the thick liquids, be provided with the feed inlet that is used for the unloading on stirred tank, stirred tank's pay-off mouth passes through the conveying pump and is connected with the feed inlet of liquid film deconcentrator, stirred tank still is provided with the circulating water jacket to cool off thick liquids at the stirring in-process, the circulating material mouth of liquid film deconcentrator passes through the conveyer pipe and is connected with stirred tank's feed back mouth, carry out the circulation dispersion to the deconcentrator thick liquids through stirred tank and liquid film. Although the consistency of the nano-size slurry is improved to a certain extent through circulating dispersion, the nano-size slurry is difficult to disperse, the dispersion effect is poor, and the fineness and the viscosity of the slurry cannot be ensured.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a lithium cell thick liquids dispersion equipment for solve the difficult technical problem who disperses nanometer thick liquids among the prior art.
In order to achieve the above object, the utility model provides a lithium battery slurry dispersing equipment's technical scheme as follows:
the utility model provides a lithium cell thick liquids dispersion devices, includes to the thick liquids mix the agitating unit of thick liquids and to carry out the grinder that grinds to the thick liquids, agitating unit includes the mixer, and grinding unit includes the sand mill, and mixer and sand mill correspond the connection and constitute thick liquids circulation disperse system to the second pipeline that the sand mill flows through the thick liquids that are used for supplying the mixer to the first pipeline that the mixer flows and be used for supplying the thick liquids of mixer in the sand mill.
The beneficial effects are that: the slurry is ground by a sand mill to achieve uniform dispersion, and the nano-scale slurry can be uniformly dispersed; the thick liquids are poured into the mixer through the feed inlet and are stirred, the thick liquids after stirring are conveyed to the sand mill through the second pipeline and are ground and dispersed, the thick liquids after grinding are conveyed to the mixer through the first pipeline and are stirred, one or more times of circulation is carried out, namely, the mixer and the sand mill form a thick liquids circulation dispersion system, the dispersion dead angle is reduced, the thick liquids are guaranteed to be ceaselessly stirred in the high turbulence and shearing environment in the preparation process, and the dispersion quality and the stability of the thick liquids are improved.
Further, the downstream end of the first conduit may be removably connected to the feed inlet of the blender to allow for feeding of the blender during disassembly.
The beneficial effects are that: therefore, the material can be added without changing the structure of the stirrer, and the structure is simpler; and after the feeding hole is connected with the first pipeline, a closed circulating system is formed, and the stability of the slurry is ensured.
Further, the upstream end of first pipeline is connected on the discharge gate of sand mill, and the upstream end of second pipeline is connected on the discharge gate of mixer, and at least one in first pipeline and the second pipeline and the discharge gate releasable connection that corresponds to derive the thick liquids when taking apart.
The beneficial effects are that: therefore, the slurry can be led out without changing the structure of the stirrer or the sand mill, and the structure is simple; and after the discharge port is connected with the second pipeline, a closed circulating system is formed, and the stability of the slurry is ensured.
Further, at least one of the first pipeline and the second pipeline is provided with a delivery pump.
The beneficial effects are that: the dispersion speed of the slurry is improved through the delivery pump, and the dispersion efficiency is further improved.
Further, the stirrer is a double-planet stirrer.
The beneficial effects are that: the double-planet type stirrer is adopted, so that the slurry is stirred more fully, and the dispersion effect is improved.
Furthermore, a cooling water jacket is wrapped outside the stirring cavity of the stirring machine, and the stirring device comprises a water path for supplying circulating water to the cooling water jacket.
The beneficial effects are that: the slurry temperature in the stirring cavity in the slurry mixing process is reduced, poor bonding effect of the slurry caused by overhigh slurry temperature is avoided, and the stability of the slurry is improved.
Furthermore, a cooling water jacket is wrapped outside a grinding cavity of the sand mill, and the grinding device comprises a water channel for supplying circulating water to the cooling water jacket.
The beneficial effects are that: the slurry temperature in the stirring cavity in the grinding process is reduced, poor bonding effect of the slurry caused by overhigh slurry temperature is avoided, and the stability of the slurry is improved.
Further, at least one is provided with the vacuum extraction opening in sand mill and the mixer, battery thick liquids dispersion devices includes the vacuum pump of being connected with the vacuum extraction opening correspondence to hold the chamber to corresponding thick liquids and carry out the evacuation.
The beneficial effects are that: the bubble content of the slurry is reduced, and the loading and coating quality of the slurry is improved.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of a lithium battery slurry dispersing apparatus according to the present invention;
in the figure: 1-a stirring device; 2-double planetary mixer; 3-a first vacuum pumping port; 4-a first water inlet; 5-mixing the slurry and discharging the slurry; 6-a first water outlet; 7-a second conduit; 8-a second vacuum pumping port; 9-a sand mill; 10-a second water inlet; 11-a grinding device; 12-a grinding drive motor; 13-a second delivery pump; 14-sanding the feed inlet; 15-a second water outlet; 16-sanding a discharge hole; 17-a first delivery pump; 18-a first conduit; 19-slurry mixing feed inlet; 20-stirring driving motor.
Detailed Description
The following describes the present invention with reference to the accompanying drawings.
The utility model discloses an embodiment of lithium battery slurry dispersion equipment, as shown in figure 1, lithium battery slurry dispersion equipment includes agitating unit 1 that is used for closing thick liquid to thick liquid and is used for carrying out the grinder 11 that grinds to thick liquid, and agitating unit 1 includes double planetary mixer 2, and grinder 11 includes sander 9, and double planetary mixer 2 and sander 9 pass through the pipe connection and form thick liquid circulation disperse system.
Specifically, the grinding device 11 further comprises a grinding driving motor 12 for providing power for the sand mill 9, and the grinding driving motor 12 is in transmission connection with the sand mill 9 and is in belt transmission. The stirring device 1 further comprises a stirring driving motor 20 for providing power for the double-planetary stirrer 2, and the stirring driving motor 20 is in transmission connection with the double-planetary stirrer 2 and is in gear transmission.
A sanding feed port 14 for slurry to flow into the sanding machine 9 for grinding and a sanding discharge port 16 for ground slurry to flow out are arranged on the sanding machine 9, and a slurry mixing feed port 19 for slurry to flow into the double planetary mixer 2 and a slurry mixing discharge port 5 for mixed slurry to flow out are arranged on the double planetary mixer 2; wherein, it is the feed inlet of feeding in lithium battery thick liquids dispersion equipment to close thick liquids feed inlet 19 simultaneously, closes thick liquids discharge gate 5 simultaneously for exporting the discharge gate of lithium battery thick liquids dispersion equipment for the thick liquids after accomplishing the dispersion.
The slurry circulation dispersion system includes a first pipe 18 for flowing the slurry in the sand mill 9 to the double planetary mixer 2 and a second pipe 7 for flowing the slurry of the double planetary mixer 2 to the sand mill 9. The specific connection mode is as follows: the slurry mixing inlet 19 is connected with the sand grinding outlet 16 through a first pipeline 18, and the slurry mixing outlet 5 is connected with the sand grinding inlet 14 through a second pipeline 7, so that a slurry circulating and dispersing system is formed between the double-planetary mixer 2 and the sand grinding machine 9, and slurry is circularly dispersed between the double-planetary mixer 2 and the sand grinding machine 9. Wherein, the downstream end of the first pipeline 18 is provided with a feeding joint which is hermetically and detachably connected with the slurry-mixing feeding hole 19, so that when the feeding joint is detached, the double-planet type stirring machine 2 is fed with the slurry; the upstream end of second pipeline is provided with and closes the sealed releasable connection's of thick liquid discharge gate 5 discharge joint to when discharge joint takes apart, the thick liquids that will accomplish the dispersion are derived.
In order to increase the dispersion speed of the slurry, a second transfer pump 13 is connected in series to the second pipe 7 to transfer the slurry from the double planetary mixer 2 to the sand mill 9, and a first transfer pump 17 is connected in series to the first pipe 18 to transfer the slurry from the sand mill 9 to the double planetary mixer 2.
The outer side of the stirring cavity of the double-planet type stirrer 2 is wrapped with a first cooling water jacket, the first cooling water jacket is provided with a first water inlet 4 and a first water outlet 6, the stirring device 1 comprises a first water channel communicated with the first water inlet 4 and the first water outlet 6, and the first water channel is connected with a water pump (not shown in the figure) to supply circulating water to the first cooling water jacket so as to circularly cool the stirring cavity of the double-planet type stirrer 2. The outer side of a grinding cavity of the sand grinder is wrapped with a second cooling water jacket, a second water inlet 10 and a second water outlet 15 are formed in the second cooling water jacket, the grinding device 11 comprises a second water channel communicated with the second water inlet 10 and the second water outlet 15, and a water pump is connected to the second water channel to supply circulating water to the second cooling water jacket so as to circularly cool the grinding cavity of the sand grinder 9. The grinding device 11 and the stirring device 1 may connect the first water path and the second water path through a valve to share one water pump, or may use one water pump independently from each other, and only need to supply water to the first water path and the second water path, which is not limited herein.
A second vacuum pumping hole 8 communicated with the grinding cavity of the sand mill 9 is formed in the sand mill 9, and the grinding device 11 comprises a vacuum pump (not shown in the figure) connected with the second vacuum pumping hole 8 to pump vacuum to the grinding cavity of the sand mill 9, so that a vacuum grinding environment is manufactured in the grinding process of the slurry, and the bubble content of the slurry is reduced; the double-planet type stirrer 2 is provided with a first vacuum pumping hole 3 communicated with the stirring cavity of the double-planet type stirrer 2, and the stirring device 1 comprises a vacuum pump connected with the first vacuum pumping hole 3 to pump the stirring cavity of the double-planet type stirrer 2 in vacuum, so that a vacuum slurry mixing environment is manufactured in the slurry mixing process of slurry, and the bubble content of the slurry is reduced. The grinding apparatus 11 and the stirring apparatus 1 may share one vacuum pump, or may use one vacuum pump independently of each other, and are not limited herein.
The utility model discloses a lithium battery slurry dispersion equipment is when closing thick liquid to lithium battery slurry, add stirring material into double planet formula mixer 2 through the thick liquid feed inlet 19 that closes of double planet formula mixer 2, connect the feed connection and close thick liquid feed inlet 19, make double planet formula mixer 2 and sand mill 9 form thick liquid circulation disperse system, and start agitating unit 1 and vacuum pump, in order to make the vacuum close thick liquid environment, reduce the bubble content of thick liquid, open first water inlet 4 and first delivery port 6 and carry out circulative cooling to double planet formula mixer 2 simultaneously in the stirring process; the stirred slurry is conveyed into a sand mill 9 through a second conveying pump 13 to be ground, a grinding device 11 is started, a vacuum pump simultaneously vacuumizes the sand mill 9, a second water inlet 10 and a second water outlet 15 are opened in the grinding process to circularly cool the sand mill 9, and when the nano-scale slurry or the slurry which is difficult to disperse needs to be prepared, the sand mill 9 can fully grind and disperse the slurry to meet the preparation requirement; the ground slurry is conveyed to the double planetary mixer 2 through the first conveying pump 17 to be mixed once or for many times, and finally the discharging joint is detached, and the dispersed slurry is led out through the slurry mixing discharging port. In the circulation process of the slurry, uniform and stable slurry can be obtained according to the adjustment of the dispersing and stirring time, the rotation speed and the flow rate thereof. A circulating system is formed by the double planetary mixers 2 and the sand mill 9, so that the dispersion dead angle is reduced, the slurry is ensured to be ceaselessly in high-turbulence and shearing environments in the preparation process, and the dispersion quality and stability of the slurry are improved.
In this embodiment, the second pipeline and the first pipeline are both connected in series with the delivery pump, and in other embodiments, the delivery pump may be connected in series only on the second pipeline or only on the first pipeline.
In this embodiment, close the thick liquid feed inlet and be the feed inlet that is used for leading-in thick liquids simultaneously, in other embodiments, can set up a feed inlet alone on double planetary mixer, for preventing that the air from getting into double planetary mixer, be provided with open and close valve on the feed inlet, close thick liquid feed inlet and first pipeline fixed connection and form thick liquids circulation disperse system.
In this embodiment, close the thick liquid discharge gate and be the discharge gate that is used for the thick liquids after will accomplishing the dispersion simultaneously, in other embodiments, can set up a discharge gate alone on double planetary mixer, for preventing that the air from getting into double planetary mixer, be provided with open-close valve on the discharge gate, close thick liquid feed gate and second pipeline fixed connection and form thick liquids circulation disperse system.
In this embodiment, the mixer is a double planetary mixer, and in other embodiments, a planetary gravity mixer may be used.
In other embodiments, the cooling jacket may be provided only on the mixer or only on the sand mill, or may be cooled by a natural heat radiation method without providing the cooling jacket.
In this embodiment, all be provided with the vacuum extraction opening on mixer and sand mill, in other embodiments, can only set up the vacuum extraction opening on the mixer or only on the sand mill, the vacuum pump is connected with the vacuum extraction opening, also can not set up the vacuum extraction opening.
In this embodiment, the first pipeline is provided with and closes the sealed releasable connection's of thick liquid feed inlet feed connector, and the upstream end of second pipeline is provided with and closes the sealed releasable connection's of thick liquid discharge gate discharge connector, and in other embodiments, the first pipeline can with close thick liquid feed inlet flange joint, the second pipeline with close thick liquid discharge gate flange joint.
In this embodiment, close the thick liquid discharge gate and be lithium battery thick liquids dispersion equipment's discharge gate simultaneously, in other embodiments, first pipeline be provided with grind the sealed releasable connection's of discharge gate ejection of compact joint, consequently, grind the discharge gate and be lithium battery thick liquids dispersion equipment's discharge gate simultaneously.
Claims (8)
1. The utility model provides a lithium battery slurry dispersion equipment, includes the agitating unit who closes thick liquid to thick liquids and the grinder that grinds to thick liquids, its characterized in that: the stirring device comprises a stirring machine, the grinding device comprises a sand mill, and the stirring machine and the sand mill are correspondingly connected through a first pipeline for the slurry in the sand mill to flow to the stirring machine and a second pipeline for the slurry in the stirring machine to flow to the sand mill to form a slurry circulation and dispersion system.
2. The lithium battery paste dispersion apparatus according to claim 1, wherein: the downstream end of the first conduit is removably attachable to the feed inlet of the blender so that when removed, the blender can be charged.
3. The lithium battery paste dispersion apparatus according to claim 1 or 2, characterized in that: the upstream end of first pipeline is connected on the discharge gate of sand mill, and the upstream end of second pipeline is connected on the discharge gate of mixer, and at least one in first pipeline and the second pipeline and the discharge gate releasable connection that corresponds to derive the thick liquids when taking apart.
4. The lithium battery paste dispersion apparatus according to claim 1 or 2, characterized in that: and at least one of the first pipeline and the second pipeline is provided with a delivery pump.
5. The lithium battery paste dispersion apparatus according to claim 1, wherein: the stirrer is a double-planet stirrer.
6. The lithium battery paste dispersion apparatus according to claim 1 or 2, characterized in that: the outer side of the stirring cavity of the stirrer is wrapped with a cooling water jacket, and the stirring device comprises a water path for supplying circulating water to the cooling water jacket.
7. The lithium battery paste dispersion apparatus according to claim 1 or 2, characterized in that: the outside of a grinding cavity of the sand mill is wrapped with a cooling water jacket, and the grinding device comprises a water path for supplying circulating water to the cooling water jacket.
8. The lithium battery paste dispersion apparatus according to claim 1 or 2, characterized in that: at least one is provided with the vacuum extraction opening in sand mill and the mixer, battery thick liquids dispersion equipment includes the vacuum pump of being connected with the vacuum extraction opening correspondence to hold the chamber to the thick liquids that correspond and carry out the evacuation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920282928.1U CN209848803U (en) | 2019-03-06 | 2019-03-06 | Lithium battery slurry dispersing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920282928.1U CN209848803U (en) | 2019-03-06 | 2019-03-06 | Lithium battery slurry dispersing equipment |
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| Publication Number | Publication Date |
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| CN209848803U true CN209848803U (en) | 2019-12-27 |
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| CN201920282928.1U Active CN209848803U (en) | 2019-03-06 | 2019-03-06 | Lithium battery slurry dispersing equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111203370A (en) * | 2020-02-25 | 2020-05-29 | 深圳吉阳智能科技有限公司 | Spiral circulation stirring processing integrated system for lithium ion battery slurry |
| CN111346565A (en) * | 2020-04-10 | 2020-06-30 | 东莞瑞泰新材料科技有限公司 | Preparation device and method of aqueous carbon nanotube conductive slurry |
| US20210339210A1 (en) * | 2020-04-29 | 2021-11-04 | Sk Innovation Co., Ltd. | Ultra-dispersion mixer |
-
2019
- 2019-03-06 CN CN201920282928.1U patent/CN209848803U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111203370A (en) * | 2020-02-25 | 2020-05-29 | 深圳吉阳智能科技有限公司 | Spiral circulation stirring processing integrated system for lithium ion battery slurry |
| CN111203370B (en) * | 2020-02-25 | 2024-02-06 | 深圳吉阳智能科技有限公司 | Spiral circulation stirring processing integrated system for lithium ion battery slurry |
| CN111346565A (en) * | 2020-04-10 | 2020-06-30 | 东莞瑞泰新材料科技有限公司 | Preparation device and method of aqueous carbon nanotube conductive slurry |
| US20210339210A1 (en) * | 2020-04-29 | 2021-11-04 | Sk Innovation Co., Ltd. | Ultra-dispersion mixer |
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Address after: No.66, Binhe North Road, high tech Development Zone, Luoyang City, Henan Province Patentee after: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. Patentee after: AVIC Innovation Technology Research Institute (Jiangsu) Co.,Ltd. Address before: No.66, Binhe North Road, high tech Development Zone, Luoyang City, Henan Province Patentee before: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. Patentee before: Kaibo Energy Technology Co.,Ltd. Address after: No.66, Binhe North Road, high tech Development Zone, Luoyang City, Henan Province Patentee after: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. Patentee after: Kaibo Energy Technology Co.,Ltd. Address before: No.66, Binhe North Road, high tech Development Zone, Luoyang City, Henan Province Patentee before: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. Patentee before: CHINA AVIATION LITHIUM BATTERY RESEARCH INSTITUTE Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220113 Address after: No.1 Jiangdong Avenue, Jintan District, Changzhou City, Jiangsu Province Patentee after: Zhongchuangxin Aviation Technology Co.,Ltd. Patentee after: AVIC Innovation Technology Research Institute (Jiangsu) Co.,Ltd. Address before: No.66, Binhe North Road, high tech Development Zone, Luoyang City, Henan Province Patentee before: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. Patentee before: AVIC Innovation Technology Research Institute (Jiangsu) Co.,Ltd. |