A lithium battery slurry mixing device

Abstract

This invention belongs to the field of lithium battery raw material manufacturing technology, specifically relating to a lithium battery slurry mixing device. The device includes a mixing tank and an electric motor mounted on top of the mixing tank. A telescopic mechanism is installed on the top of the mixing tank, and a particle sampling device is connected to the bottom of the telescopic mechanism. Driven by the telescopic mechanism, the particle sampling device collects particulate matter from the lithium battery slurry in the mixing tank. This invention solves the problem of workers needing to pour out the slurry for testing and observation, simplifies the lithium battery slurry mixing operation, reduces labor time, and improves production efficiency.

Description

Technical Field

[0001] This invention belongs to the field of lithium battery raw material manufacturing technology, specifically relating to a lithium battery slurry mixing device. Background Technology

[0002] Lithium batteries are batteries that use lithium metal or lithium alloy as the anode material and a non-aqueous electrolyte solution. Unlike lithium-ion batteries, lithium batteries are primary batteries, while lithium-ion batteries are rechargeable batteries. Due to the highly reactive chemical properties of lithium metal, the processing, storage, and use of lithium metal require very strict environmental conditions.

[0003] Most existing lithium battery slurry mixing devices use a stirring rack to mix the slurry. However, after mixing, it is difficult to observe whether the slurry is evenly mixed or whether there are any particles of binder or thickener. Workers need to pour out the slurry and then check it. If there are particles, it needs to be poured back into the mixing device and mixed again. This operation is quite troublesome and wastes a lot of workers' time. Summary of the Invention

[0004] In view of this, and to address the shortcomings of the prior art, the present invention provides a lithium battery slurry mixing device, which solves the problem that workers need to pour out the slurry and then conduct testing and observation.

[0005] To achieve the above-mentioned technical objectives, the specific technical solution adopted by the present invention is as follows:

[0006] A lithium battery slurry mixing device includes a mixing tank and an electric motor mounted on top of the mixing tank. The top of the mixing tank is equipped with a telescopic mechanism, and the bottom of the telescopic mechanism is connected to a particle sampling device. The particle sampling device collects particulate matter in the lithium battery slurry in the mixing tank under the action of the telescopic mechanism.

[0007] Furthermore, the telescopic mechanism includes a threaded rod, a threaded block, and a limiting rod; the particle collection device is a filter screen; protective frames are fixedly connected to both the left and right sides of the mixing tank; the threaded rod is rotatably connected between the top and bottom of the inner surface of the protective frame; the threaded block is threadedly connected to the outer surface of the threaded rod; the limiting rod is fixedly connected to the outer surface of the threaded block; the filter screen is slidably connected to the inner surface of the mixing tank; and one end of the limiting rod is fixedly connected to the filter screen.

[0008] Furthermore, telescopic rods are fixedly connected to the left and right sides of the top of the mixing tank. One end of the telescopic rod is fixedly connected to the outer surface of the motor through a fixing frame. One end of the output shaft of the motor passes through the top of the mixing tank and is fixedly connected to a splined shaft. The top of the inner surface of the mixing tank is rotatably connected to a mixing frame through a rotating frame.

[0009] The top of the stirring rack is provided with a first groove that is adapted to the spline shaft;

[0010] The telescopic mechanism further includes a first sprocket and a second sprocket; the first sprocket is located between the top of the stirring frame and the top of the stirring tank, and a second groove adapted to the spline shaft is provided at the bottom; the outer surface of the threaded rod is sleeved and fixedly connected to the second sprocket; the outer surface of the second sprocket and the outer surface of the first sprocket are connected by chain drive.

[0011] Furthermore, the filter screen has through holes that allow the stirring rack to pass through.

[0012] Furthermore, the left and right sides of the mixing tank are provided with limiting grooves that are adapted to the limiting rods, and the limiting grooves are used to allow the limiting rods to slide on the side walls of the mixing tank.

[0013] Furthermore, a sponge sealing strip is fixedly connected to the inner surface of the limiting groove.

[0014] According to the lithium battery slurry mixing device according to claim 1, the outer surface of the spline shaft is fitted with a sleeve, and one end of the sleeve is fixedly connected to the top of the first sprocket.

[0015] Furthermore, a bearing is rotatably connected to the outer surface of the sleeve, and the outer surface of the bearing is fixedly connected to the top of the inner surface of the mixing tank through a fixing bracket.

[0016] Furthermore, the side wall of the mixing tank is provided with an observation window.

[0017] Furthermore, the material of the sponge sealing strip is EPDM rubber, nitrile rubber, neoprene rubber and / or butyl rubber.

[0018] By adopting the above technical solution, the present invention can bring the following beneficial effects:

[0019] (1) The lithium battery slurry mixing device of the present invention, in conjunction with the setting of a mixing tank, a motor, a telescopic rod, a protective frame, a threaded rod, a threaded block, a limiting rod, a filter screen, a splined shaft and a mixing frame, starts the motor to drive the splined shaft to rotate the mixing frame, thereby mixing the slurry in the mixing tank. After the mixing is completed, the telescopic rod is started to drive the motor to raise the splined shaft. After the splined shaft is disengaged from the mixing frame, the spline on the splined shaft engages with the second groove. The motor is started again to drive the splined shaft to rotate the first sprocket. Due to the setting of the chain, the first sprocket drives the second sprocket to rotate the threaded rod. Due to the limiting rod, the rotation of the threaded rod drives the threaded block to rise. The threaded block drives the limiting rod to raise the filter screen. The top of the filter screen is observed through the observation window on the front of the mixing tank to see if there are particulate matter. If there is, the slurry is continued to be stirred. If not, the slurry is discharged. The operation is simple and convenient. There is no need to pour out the slurry for inspection and observation, thereby saving workers a lot of time.

[0020] (2) The lithium battery slurry mixing device of the present invention has a through hole adapted to the spline shaft at the top of the filter screen, and a sponge sealing strip is fixedly connected to the inner surface of the limiting groove. The sponge sealing strip prevents particles in the slurry from entering the protective frame, thereby preventing particles in the slurry from affecting the use of the threaded rod. The through hole allows the filter screen to pass through the stirring frame and rise, thereby ensuring the normal operation of the device. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the external structure of a lithium battery slurry mixing device according to a specific embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the internal structure of a lithium battery slurry mixing device according to a specific embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram showing the structural connection of the mixing tank, sponge sealing strip, and limiting groove of the present invention;

[0025] Figure 4 For the present invention Figure 2 A magnified view of a portion of point A in the middle;

[0026] Figure 5 This is a schematic diagram showing the structural connection of the spline shaft, the first sprocket, and the second groove of the present invention;

[0027] Figure 6This is a schematic diagram showing the structural connection of the splined shaft, stirring frame, and first groove of the present invention;

[0028] Figure 7 This is a schematic diagram showing the connection between the filter screen and the through holes of the present invention.

[0029] The components include: 1. Mixing tank; 2. Motor; 3. Telescopic rod; 4. Protective frame; 5. Threaded rod; 6. Threaded block; 7. Limiting rod; 8. Filter screen; 9. Splined shaft; 10. Mixing frame; 11. First sprocket; 12. Sleeve; 13. Bearing; 14. First groove; 15. Second groove; 16. Through hole; 17. Sponge sealing strip; 18. Second sprocket; 19. Limiting groove. Detailed Implementation

[0030] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0031] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0032] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this invention, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using other structures and / or functionalities besides one or more of the aspects set forth herein.

[0033] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. The drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0034] Furthermore, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that the described aspects can be practiced without these specific details.

[0035] In one embodiment of the present invention, a lithium battery slurry mixing device is provided, see reference. Figure 1-7 The device includes a mixing tank 1 and an electric motor 2 mounted on top of the mixing tank 1. The device is characterized in that: a telescopic mechanism is provided on the top of the mixing tank 1, and a particle sampling device is connected to the bottom of the telescopic mechanism; the particle sampling device collects particulate matter in the lithium battery slurry in the mixing tank 1 under the drive of the telescopic mechanism.

[0036] In this embodiment, the telescopic mechanism includes a threaded rod 5, a threaded block 6, and a limiting rod 7; the particle collection device is a filter screen 8; protective frames 4 are fixedly connected to both the left and right sides of the mixing tank 1; the threaded rod 5 is rotatably connected between the top and bottom of the inner surface of the protective frame 4; the threaded block 6 is threadedly connected to the outer surface of the threaded rod 5; the limiting rod 7 is fixedly connected to the outer surface of the threaded block 6; the filter screen 8 is slidably connected to the inner surface of the mixing tank 1; and one end of the limiting rod 7 is fixedly connected to the filter screen 8.

[0037] In this embodiment, telescopic rods 3 are fixedly connected to the left and right sides of the top of the mixing tank 1. One end of the telescopic rod 3 is fixedly connected to the outer surface of the motor 2 through a fixing frame. One end of the output shaft of the motor 2 passes through the top of the mixing tank 1 and is fixedly connected to a spline shaft 9. The top of the inner surface of the mixing tank 1 is rotatably connected to a mixing frame 10 through a rotating frame.

[0038] The top of the stirring rack 10 is provided with a first groove 14 that is adapted to the spline shaft 9;

[0039] The telescopic mechanism also includes a first sprocket 11 and a second sprocket 18; the first sprocket 11 is located between the top of the stirring frame 10 and the stirring tank 1, and a second groove 15 adapted to the spline shaft 9 is provided at the bottom; the outer surface of the threaded rod 5 is fitted with and fixedly connected to the second sprocket 18; the outer surface of the second sprocket 18 and the outer surface of the first sprocket 11 are connected by chain drive.

[0040] In this embodiment, the filter screen 8 has a through hole 16 that allows the stirring rack 10 to pass through.

[0041] In this embodiment, limiting grooves 19 adapted to the limiting rod 7 are provided on both the left and right sides of the mixing tank 1. The limiting grooves 19 are used to allow the limiting rod to slide on the side wall of the mixing tank 1.

[0042] In this embodiment, a sponge sealing strip 17 is fixedly connected to the inner surface of the limiting groove 19.

[0043] In this embodiment, a sleeve 12 is fitted on the outer surface of the spline shaft 9, and one end of the sleeve 12 is fixedly connected to the top of the first sprocket 11.

[0044] In this embodiment, a bearing 13 is rotatably connected to the outer surface of the sleeve 12, and the outer surface of the bearing 13 is fixedly connected to the top of the inner surface of the mixing tank 1 through a fixing bracket.

[0045] In this embodiment, an observation window is provided on the side wall of the mixing tank 1.

[0046] This embodiment of a lithium battery slurry mixing device includes a mixing tank 1 and a motor 2 mounted on top of the mixing tank 1. The motor 2 is electrically connected to an external power source and controlled by a control switch. Telescopic rods 3 are fixedly connected to the left and right sides of the top of the mixing tank 1. The telescopic rods 3 are also electrically connected to an external power source and controlled by a control switch. One end of each telescopic rod 3 is fixedly connected to the outer surface of the motor 2 via a fixing bracket. Protective frames 4 are fixedly connected to the left and right sides of the mixing tank 1. A threaded rod 5 is rotatably connected between the top and bottom of the inner surface of the protective frame 4. A threaded block 6 is threadedly connected to the outer surface of the threaded rod 5. A limit rod 7 is fixedly connected to the outer surface of the threaded block 6. A filter screen 8 is slidably connected to the inner surface of the mixing tank 1. One end of the limit rod 7 is fixedly connected to the outer surface of the filter screen 8. One end of the output shaft of the motor 2 passes through the mixing tank 1 and is fixedly connected to a splined shaft 9. The top of the inner surface of the mixing tank 1... The mixing frame 10 is rotatably connected to the rotating frame. The motor 2 is started to drive the spline shaft 9 to rotate the mixing frame 10, thereby mixing the slurry in the mixing tank 1. After the mixing is completed, the telescopic rod 3 is started to drive the motor 2 to raise the spline shaft 9. After the spline shaft 9 disengages from the mixing frame 10, the spline on the spline shaft 9 engages with the second groove 15. The motor 2 is started again to drive the spline shaft 9 to rotate the first sprocket 11. Due to the chain setting, the first sprocket 11 drives the second sprocket 18 to rotate the threaded rod 5. Due to the limit rod 7, the rotation of the threaded rod 5 drives the threaded block 6 to rise. The threaded block 6 drives the limit rod 7 to raise the filter screen 8. The top of the filter screen 8 can be observed through the observation window on the front of the mixing tank 1 to see if there are any particles. If there are, the slurry is continued to be stirred. If not, the slurry is discharged. The operation is simple and convenient, and there is no need to pour out the slurry for inspection and observation, thus saving workers a lot of time.

[0047] Furthermore, the left and right sides of the mixing tank 1 are provided with limiting grooves 19 that are compatible with the limiting rod 7.

[0048] Furthermore, a first sprocket 11 is fitted onto the outer surface of the spline shaft 9, and a sleeve 12 is fitted onto the outer surface of the spline shaft 9, with one end of the sleeve 12 fixedly connected to the top of the first sprocket 11.

[0049] Furthermore, a bearing 13 is rotatably connected to the outer surface of the sleeve 12, and the outer surface of the bearing 13 is fixedly connected to the top of the inner surface of the mixing tank 1 through a fixing bracket.

[0050] Furthermore, one end of the stirring rack 10 is provided with a first groove 14 that is adapted to the spline shaft 9, the bottom of the first sprocket 11 is provided with a second groove 15 that is adapted to the spline shaft 9, and the filter screen 8 is provided with a through hole 16 that allows the stirring rack 10 to pass through.

[0051] Furthermore, a sponge sealing strip 17 is fixedly connected to the inner surface of the limiting groove 19. The sponge sealing strip 17 has low density, good elasticity, and excellent sealing effect and buffering performance. It is usually made by continuous extrusion vulcanization of foamed rubber and is used for sealing in various occasions. Common raw materials for sponge sealing strips include EPDM rubber, nitrile rubber, neoprene rubber and butyl rubber. A second sprocket 18 is sleeved and fixedly connected to the outer surface of the threaded rod 5. The outer surface of the second sprocket 18 is connected to the outer surface of the first sprocket 11 through chain drive.

[0052] In use, the slurry is poured into the mixing tank 1 through the feed pipe. The motor 2 is started to drive the spline shaft 9 to rotate the mixing frame 10, thereby mixing the slurry in the mixing tank 1. After mixing, the telescopic rod 3 is started to drive the motor 2 to raise the spline shaft 9. After the spline shaft 9 disengages from the mixing frame 10, the spline on the spline shaft 9 engages with the second groove 15. The motor 2 is started again to drive the spline shaft 9 to rotate the first sprocket 11. Due to the chain, the first sprocket 11 drives the second sprocket 18 to rotate the threaded rod 5. Due to the limiting rod 7, the rotation of the threaded rod 5 drives the threaded block 6 to rise. The threaded block 6 drives the limiting rod 7 to raise the filter screen 8. The top of the filter screen 8 is observed through the observation window on the front of the mixing tank 1 to see if there are any particles. If there are particles on the top of the filter screen 8, the filter screen 8 is returned to its original position and the slurry is continued to be mixed. If there are no particles on the top of the filter screen 8, the slurry is poured out through the discharge pipe at the bottom of the mixing tank 1.

[0053] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A lithium battery slurry mixing device comprising a stirring barrel (1) and an electric motor (2) arranged at the top of the stirring barrel (1), characterized in that: The top of the stirring barrel (1) is provided with a telescopic mechanism, and the bottom of the telescopic mechanism is connected with a particle sampling device; the particle sampling device collects particles in the lithium battery slurry in the stirring barrel (1) under the driving of the telescopic mechanism. The telescopic mechanism comprises a threaded rod (5), a threaded block (6) and a limiting rod (7); the particle collecting device is a filter screen (8); the left and right sides of the stirring barrel (1) are both fixedly connected with a protection frame (4), the top and the bottom of the inner surface of the protection frame (4) are rotatably connected with the threaded rod (5), the outer surface of the threaded rod (5) is threadedly connected with the threaded block (6), the outer surface of the threaded block (6) is fixedly connected with the limiting rod (7), the inner surface of the stirring barrel (1) is slidably connected with the filter screen (8), and one end of the limiting rod (7) is fixedly connected with the filter screen (8). The left and right sides of the top of the stirring barrel (1) are both fixedly connected with telescopic rods (3), one end of the telescopic rod (3) is fixedly connected with the outer surface of the motor (2) through a fixing frame, and one end of the output shaft of the motor (2) penetrates through the top of the stirring barrel (1) and is fixedly connected with a spline shaft (9); the top of the inner surface of the stirring barrel (1) is rotatably connected with a stirring frame (10) through a rotating frame. The top end of the stirring frame (10) is provided with a first groove (14) matched with the spline shaft (9). The telescopic mechanism further comprises a first chain wheel (11) and a second chain wheel (18); the first chain wheel (11) is located between the stirring frame (10) and the top of the stirring barrel (1), and the bottom is provided with a second groove (15) matched with the spline shaft (9); the outer surface of the threaded rod (5) is sleeved and fixedly connected with the second chain wheel (18); and the outer surface of the second chain wheel (18) is in transmission connection with the outer surface of the first chain wheel (11) through a chain.

2. The lithium battery slurry mixing device of claim 1, wherein, The filter screen (8) is provided with a through hole (16) allowing the stirring frame (10) to pass through.

3. The lithium battery slurry mixing device of claim 1, wherein: The left and right sides of the stirring barrel (1) are both provided with limiting grooves (19) matched with the limiting rods (7), and the limiting grooves (19) are used for allowing the limiting rods to slide on the side walls of the stirring barrel (1).

4. The lithium battery slurry mixing device of claim 3, wherein, The inner surface of the limiting groove (19) is fixedly connected with a sponge sealing strip (17).

5. The lithium battery slurry mixing device of claim 1, wherein, The outer surface of the spline shaft (9) is sleeved with a sleeve pipe (12), and one end of the sleeve pipe (12) is fixedly connected with the top of the first chain wheel (11).

6. The lithium battery slurry mixing device of claim 5, wherein, The outer surface of the sleeve pipe (12) is rotatably connected with a bearing (13), and the outer surface of the bearing (13) is fixedly connected with the top of the inner surface of the stirring barrel (1) through a fixing frame.

7. The lithium battery slurry mixing device of claim 1, wherein, The side wall of the stirring barrel (1) is provided with an observation window.

8. The lithium battery slurry mixing device of claim 4, wherein, The sponge sealing strip (17) is made of ethylene propylene rubber, nitrile rubber, chlorobutyl rubber and / or butyl rubber.

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