Battery slurry stirring device

Abstract

The utility model discloses a battery slurry stirring device, which belongs to the technical field of battery manufacturing; a battery slurry stirring device, further comprising a pair of herringbone stirring blocks fixedly connected to the upper and lower ends of a rotating shaft; two of the herringbone stirring blocks are rotatably connected to a mixing barrel; the inner sides of two anti-loosening plugs in the same vertical direction are fixedly connected to a rotating shaft; the lower herringbone stirring block is fixedly connected to a bevel gear; two bevel gears are arranged at a lower end of the bevel gear; the outer side of the bevel gear is fixedly connected to a rotating shaft three; eight fan blades are fixedly connected to the outer side of each rotating shaft three; a mixing pump is fixedly arranged on the outer side of the lower end of the mixing barrel; the input end of the mixing pump is connected to the lower end of the mixing barrel; the output end of the mixing pump is connected to the upper middle side of the mixing barrel; by arranging the mixing pump, a part of the slurry is drawn out and poured in from a high place, and then a stream of slurry fluid is added to mix with the slurry inside the mixing barrel, so as to improve the slurry quality.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery manufacturing, and more specifically relates to a battery slurry stirring device. Background Art

[0002] The electrode manufacturing of lithium-ion batteries includes positive electrode slurry and negative electrode slurry. The positive electrode slurry is composed of a binder, a conductive agent, a positive electrode material, etc.; the negative electrode slurry is composed of a binder, graphite carbon powder, etc. The preparation of positive and negative electrode slurries includes a series of process steps such as mixing, dissolving, and dispersing between liquid and liquid, and between liquid and solid materials. In the positive and negative electrode slurries, the dispersion and uniformity of the granular active substances directly affect the movement of lithium ions between the two poles of the battery. Therefore, the mixing and dispersion of the slurries of various pole sheet materials is crucial in the production of lithium-ion batteries. The quality of the slurry dispersion directly affects the quality of subsequent lithium-ion battery production and the performance of its products.

[0003] For example, a battery slurry stirring device with patent application number CN202222126082.7 includes an inner barrel, a top cover and a support frame. The inner barrel is controlled to rotate by a motor. The top cover is arranged on the upper part of the inner barrel, and a plurality of stirring rods are inserted on the top cover. Each stirring rod extends into the barrel body and rotates relative to the top cover, and a gear is arranged on the top of the stirring rod. A circle of rings is arranged on the top of the support frame, and a gear ring is arranged on the inner side of the ring, and the gear ring is meshed with the gear; the gear ring is used for the gear on the top of the stirring rod to rotate along the gear ring after the inner barrel rotates, and the gear drives the stirring rod to rotate by itself, so as to realize multi-stage stirring under the condition of using one motor, improve the dispersion quality of the slurry, and improve the quality of lithium-ion battery production and the performance of its products. Therefore, the utility model effectively overcomes various shortcomings in the prior art and has a high industrial utilization value. During the stirring process, the inner barrel is a closed space to prevent the slurry from splashing during the stirring process or impurities from falling into the inner barrel to cause pollution.

[0004] Although the above-mentioned battery slurry stirring device can improve the dispersion quality of the slurry, the stirring uniformity is insufficient, which affects the slurry quality. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a battery slurry stirring device to improve the slurry quality.

[0006] The utility model discloses a battery slurry stirring device, comprising a mixing barrel; the upper end of the mixing barrel is clamped with an upper cover; a motor is fixedly arranged on the upper end of the upper cover; the output end of the motor passes through the upper cover and is fixedly connected to a rotating shaft; a feeding port is fixedly arranged on the upper end of the upper cover; a discharge pipe is fixedly arranged on the lower end of the mixing barrel; it also includes a pair of herringbone stirring blocks fixedly connected to the upper and lower ends of the rotating shaft; two of the herringbone stirring blocks are rotatably connected to the mixing barrel; three anti-loosening plugs are embedded in each of the herringbone stirring blocks at equal intervals; the inner sides of the two anti-loosening plugs in the same vertical direction are fixedly connected to the rotating shaft; four fan blades are fixedly connected to the outer circumference of each of the rotating shafts; the herringbone stirring block on the lower side is fixedly connected to a bevel gear; the bevel gear An anti-collision sponge block is arranged on the outer circumference; two bevel gears 2 are arranged on the lower end of the bevel gear; the two bevel gears 2 are respectively meshed with the bevel gear 1; the outer side surface of the bevel gear 2 is fixedly connected to the rotating shaft 3; the outer side of each rotating shaft 3 is fixedly connected to eight fan blades 2; each rotating shaft 3 is fixedly connected to a bearing; the outer ring of each bearing is fixedly connected to a mixing barrel; the outer side of the anti-collision sponge block is fixedly connected to a mixing chamber; the rotating shaft 3 is rotatably connected to the side wall of the mixing chamber; the lower end of the mixing chamber is fixedly connected to the lower end surface of the mixing barrel; a pair of mixing grooves are provided on the lower side of the mixing chamber; a mixing pump is fixedly arranged on the outer side of the lower end of the mixing barrel; the input end of the mixing pump is connected to the lower end of the mixing barrel; the output end of the mixing pump is connected to the upper side of the mixing barrel.

[0007] Preferably: a stop valve is arranged on the side of the discharge pipe away from the mixing barrel.

[0008] Preferably, the mixing barrel is made of organic glass.

[0009] Preferably, the anti-loosening plug is a rubber sealing ring.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] (1) By setting up blade 1 and blade 2, centrifugal force is generated from two mutually perpendicular axes to enhance the stirring effect and improve the slurry quality; by setting up a mixing pump, a part of the slurry is pumped out and poured in from a high place, and then a stream of slurry fluid is added to mix with the slurry inside the mixing barrel to improve the slurry quality;

[0012] (2) By setting the mixing barrel to be made of plexiglass, the mixing condition of the slurry inside the mixing barrel can be observed, which helps to improve the slurry quality and mixing uniformity. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0015] Figure 3 It is a schematic diagram of the main structure of the utility model.

[0016] Explanation of the numbers in the figure: 10, mixing barrel; 11, stop valve; 12, discharge pipe; 13, motor; 14, feeding port; 15, mixing pump; 16, upper cover; 17, herringbone stirring block; 18, anti-loosening plug pad; 19, rotating shaft one; 20, rotating shaft two; 21, fan blade one; 22, mixing chamber; 23, bevel gear one; 24, bevel gear two; 25, fan blade two; 26, rotating shaft three; 27, bearing; 28, anti-collision sponge block; 29, mixing trough. DETAILED DESCRIPTION

[0017] Specific embodiment 1: Please refer to Figure 1-3 A battery slurry stirring device comprises a mixing barrel 10; the upper end of the mixing barrel 10 is clamped with an upper cover 16; a motor 13 is fixedly arranged on the upper end of the upper cover 16; the output end of the motor 13 passes through the upper cover 16 and is fixedly connected to a rotating shaft 19; a feeding port 14 is fixedly arranged on the upper end of the upper cover 16; a discharge pipe 12 is fixedly arranged on the lower end of the mixing barrel 10; and a pair of herringbone stirring blocks 17 are fixedly connected to the upper and lower ends of the rotating shaft 19; the two herringbone stirring blocks 17 are rotatably connected to the mixing barrel 10. Each of the herringbone stirring blocks 17 is embedded with three anti-loosening pads 18 at equal intervals; the inner sides of the two anti-loosening pads 18 in the same vertical direction are fixedly connected to the rotating shaft 20; the outer circumference of each rotating shaft 20 is fixedly connected to four fan blades 1 21; the lower side of the herringbone stirring block 17 is fixedly connected to the bevel gear 1 23; the outer circumference of the bevel gear 1 23 is provided with an anti-collision sponge block 28; two bevel gears 24 are provided at the lower end of the bevel gear 1 23; the two bevel gears 24 are respectively connected to the bevel gear 1 23 meshing; the outer side of the bevel gear 24 is fixedly connected to the rotating shaft 3 26; the outer side of each rotating shaft 3 26 is fixedly connected to eight fan blades 25; each rotating shaft 3 26 is fixedly connected to a bearing 27; the outer ring of each bearing 27 is fixedly connected to the mixing barrel 10; the outer side of the anti-collision sponge block 28 is fixedly connected to the mixing chamber 22; the rotating shaft 3 26 is rotatably connected to the side wall of the mixing chamber 22; the lower end of the mixing chamber 22 is fixedly connected to the lower end surface of the mixing barrel 10; a pair of mixing grooves 29 are provided at the lower side of the mixing chamber 22; A mixing pump 15 is fixedly arranged on the outer side of the lower end of the mixing barrel 10; the input end of the mixing pump 15 is connected to the lower end of the mixing barrel 10; the output end of the mixing pump 15 is connected to the upper side of the mixing barrel 10; by arranging blade 1 21 and blade 2 25, centrifugal force is generated from two mutually perpendicular axes to enhance the stirring effect and improve the slurry quality; by arranging the mixing pump 15, a part of the slurry is drawn out and poured in from a high place, and then a slurry fluid is added to mix with the slurry inside the mixing barrel 10, thereby improving the slurry quality.

[0018] See also Figure 1A stop valve 11 is provided on the side of the discharge pipe 12 away from the mixing barrel 10 .

[0019] See also Figure 2 , the mixing barrel 10 is made of organic glass; by setting the mixing barrel 10 to be made of organic glass, the mixing condition of the slurry inside the mixing barrel 10 can be observed, which helps to improve the slurry quality and mixing uniformity.

[0020] See also Figure 2-3 The anti-loosening plug pad 18 is a rubber sealing ring.

[0021] During operation, the slurry is poured in from the feeding port 14, and then the slurry first flows through the herringbone stirring block 17 on the upper side, and finally pours into the mixing chamber 22 from the mixing groove 29, thereby gradually filling the lower end of the inner side of the mixing barrel 10; the motor 13 is started, and the output end of the motor 13 drives the rotating shaft 19 to rotate during the rotation process, and the rotation of the rotating shaft 19 drives the two herringbone stirring blocks 17 to rotate. Since the rotating shaft 20 and the fan blade 1 21 on the herringbone stirring block 17 are fixedly connected to the herringbone stirring block 17, the rotating shaft 20 and the fan blade 1 21 rotate with the rotation of the rotating shaft 19. The slurry is stirred dynamically; at this time, as the rotating shaft 19 rotates, the bevel gear 1 23 also starts to rotate, the bevel gear 1 23 and the bevel gear 2 24 are meshed, and the bevel gear 2 24 rotates together with the bevel gear 1 23, and then the rotating shaft 3 26 and the bearing 27 rotate to stir the slurry. At this time, there is a centrifugal force perpendicular to each other along the two axes of the rotating shaft 19 and the rotating shaft 3 26, which stir the slurry together; at this time, the mixing pump 15 is turned on to extract the slurry on the lower side of the mixing barrel 10, and then the slurry is compensated back to the inner side of the mixing barrel 10 from the upper side to further mix the slurry, so that the slurry is mixed more evenly.

[0022] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0023] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the product or system including the elements.

[0024] The above description shows and describes several preferred embodiments of the present application, but as mentioned above, it should be understood that the present application is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the application concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the present application, and should be within the scope of protection of the claims attached to the present application.

Claims

1. A battery slurry stirring device, comprising a mixing barrel (10); the upper end of the mixing barrel (10) is clamped with an upper cover (16); a motor (13) is fixedly arranged on the upper end of the upper cover (16); the output end of the motor (13) passes through the upper cover (16) and is fixedly connected to a rotating shaft (19); a feeding port (14) is fixedly arranged on the upper end of the upper cover (16); a discharge pipe (12) is fixedly arranged on the lower end of the mixing barrel (10); characterized in that: It also includes a pair of herringbone stirring blocks (17) fixedly connected to the upper and lower ends of the rotating shaft (19); the two herringbone stirring blocks (17) are rotatably connected to the mixing barrel (10); each of the herringbone stirring blocks (17) is embedded with three anti-loosening pads (18) at equal intervals; the inner sides of the two anti-loosening pads (18) in the same vertical direction are fixedly connected to the rotating shaft (20); the outer circumference of each rotating shaft (20) is fixedly connected to four fan blades (21); the lower herringbone stirring block (17) is fixedly connected to the bevel gear (23); the outer circumference of the bevel gear (23) is provided with an anti-collision sponge block (28); two bevel gears (24) are provided at the lower end of the bevel gear (23); the two bevel gears (24) are respectively meshed with the bevel gear (23); the bevel gears (24) are respectively meshed with the bevel gear (23); ) is fixedly connected to a rotating shaft three (26) on its outer side; eight fan blades two (25) are fixedly connected to the outer side of each rotating shaft three (26); each rotating shaft three (26) is fixedly connected to a bearing (27); the outer ring of each bearing (27) is fixedly connected to a mixing barrel (10); the outer side of the anti-collision sponge block (28) is fixedly connected to a mixing chamber (22); the rotating shaft three (26) is rotatably connected to a side wall of the mixing chamber (22); the lower end of the mixing chamber (22) is fixedly connected to the lower end surface of the mixing barrel (10); a pair of mixing grooves (29) are provided on the lower side of the mixing chamber (22); a mixing pump (15) is fixedly arranged on the outer side of the lower end of the mixing barrel (10); the input end of the mixing pump (15) is connected to the lower end of the mixing barrel (10); and the output end of the mixing pump (15) is connected to the upper middle side of the mixing barrel (10).

2. A battery slurry stirring device according to claim 1, characterized in that: A stop valve (11) is provided on the side of the discharge pipe (12) away from the mixing barrel (10).

3. A battery slurry stirring device according to claim 1, characterized in that: The mixing barrel (10) is made of organic glass.

4. A battery slurry stirring device according to claim 1, characterized in that: The anti-loosening plug pad (18) is a rubber sealing ring.

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