A lithium battery graphite pulverizing device

Abstract

This utility model discloses a lithium battery graphite crushing device, belonging to the field of lithium battery graphite crushing technology. It includes: a shell, which is a cylindrical shape with an open bottom and a feed inlet at the top; crushing blades, which are coaxially mounted inside the shell and driven by a motor mounted on the shell; and a grading section, which is sleeved around the crushing blades and fixedly connected to the inner wall of the shell. The grading section includes multiple crushing chambers and is used to separate graphite particles of different sizes produced during crushing into different crushing chambers for continuous crushing. This utility model is equipped with a fixed cylinder and multiple grading plates. Filter holes are provided on the fixed cylinder. During the crushing process, unqualified graphite particles can be graded layer by layer, while qualified particles are directly discharged. This reduces the number of graphite particles in each crushing chamber, preventing interference between particles that could lead to prolonged crushing time, increased energy consumption, and reduced efficiency.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery graphite pulverization technology, specifically to a lithium battery graphite pulverization device. Background Technology

[0002] Graphite particles need to be crushed and ground before they can be used in lithium batteries. Most existing lithium battery graphite crushing equipment uses a single crushing chamber structure. During the crushing process, graphite particles remain inside the same chamber, preventing qualified particles from being discharged in time. This leads to the accumulation and mixing of particles of different sizes, causing interference. To ensure crushing efficiency, the crushing time is usually extended, which not only increases energy consumption but also significantly reduces crushing efficiency. To solve these problems, this invention provides a graded lithium battery graphite crushing device. Utility Model Content To address the aforementioned technical deficiencies, the purpose of this utility model is to provide a lithium battery graphite crushing device, which is equipped with a fixed cylinder and multiple layered plates. The fixed cylinder is equipped with filter holes, which can classify unqualified graphite particles layer by layer during the crushing process, and discharge qualified particles directly. This can reduce the number of graphite particles in each crushing chamber, prevent mutual interference between particles that would lead to prolonged crushing time, increased energy consumption, and reduced efficiency.

[0003] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a lithium battery graphite pulverizing device, comprising: The outer casing is a cylindrical shape with an opening at the bottom, and a feed inlet is provided at the top of the outer casing; The crushing blade is coaxially mounted inside the housing and driven by a motor mounted on the housing; The grading section is sleeved on the outside of the crushing cutter and fixedly connected to the inner wall of the outer shell. The grading section includes multiple crushing chambers and is used to separate graphite of different particle sizes produced during crushing into different crushing chambers for continuous crushing.

[0004] Preferably, the grading section includes: The fixing cylinder is a cylindrical shape with openings at both ends. It is coaxially installed inside the outer shell and fixedly connected to the upper inner side of the outer shell. Multiple layered plates are distributed along the axial direction of the fixed cylinder inside the fixed cylinder; Each of the multiple layered plates is provided with filter holes, and the diameter of the filter holes on the multiple layered plates decreases from top to bottom.

[0005] Preferably, the side wall of the fixed cylinder is also provided with filter holes, and the diameter of the filter holes on the fixed cylinder is adapted to the filter holes on the bottommost layer plate.

[0006] Preferably, the crushing tool comprises: The main shaft is coaxially rotatably mounted inside the housing, and the main shaft is fixedly connected to the motor shaft of the motor; Multiple sets of crushing sections are fixedly installed on the main shaft along the axial direction of the main shaft, and a set of crushing sections is provided above each layer plate.

[0007] Preferably, the crushing section includes: Multiple crushing rods are fixedly mounted on the main shaft.

[0008] Preferably, the lower end of the outer casing is provided with a grinding part, the grinding part comprising: A fixed grinding cylinder is fixedly connected inside the outer casing; A rotating grinding plate is located below a fixed grinding cylinder and is driven by a motor. Graphite particles discharged from the grading section enter between the fixed grinding cylinder and the rotating grinding plate, and are then ground and discharged.

[0009] Preferably, the fixed grinding cylinder has a cross-sectional shape of "<", with its upper open end fixedly connected to the inner wall of the outer shell, and grinding grooves provided on the inner side of its lower fold.

[0010] Preferably, the rotating grinding plate is convexly arched, with its upper end connected to the crushing tool via a connecting part, and the upper side of the rotating grinding plate is provided with grinding patterns that are compatible with those on the fixed grinding cylinder.

[0011] Preferably, the connecting portion includes: A fixed shaft is fixedly connected to the crushing tool, and the lower side of the fixed shaft is provided with a groove; A prism, wherein the prism is slidably connected to a groove, and a spring is connected between the upper end of the prism and the groove wall, and the lower end of the prism is fixedly connected to a rotating grinding plate. The spring has a clamping force that causes the rotating grinding plate to press against the fixed grinding cylinder.

[0012] Preferably, a sleeve is fixedly connected to the lower side of the rotating grinding plate, and the sleeve is inserted into a stabilizer fixedly connected inside the outer shell.

[0013] The beneficial effects of this utility model are as follows: This invention achieves graded screening of graphite particles during the crushing process through the arrangement of a fixed cylinder and multiple stratified plates, while continuously performing the crushing operation. Unqualified coarse particles are continuously struck by the crushing rod and graded layer by layer by the multiple stratified plates, while qualified particles are directly discharged. This reduces the number of graphite particles inside each crushing chamber, avoiding excessive interference between graphite particles that would lead to prolonged crushing time, increased energy consumption, and reduced crushing efficiency.

[0014] This invention achieves the collection and grinding of graphite particles falling from the fixed cylinder and the layered plate by setting up a fixed grinding cylinder and a rotating grinding plate, and the clamping force of the spring can ensure that the graphite particles are fully ground and refined. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A schematic diagram (first view) of a lithium battery graphite pulverizing device provided for an embodiment of this utility model.

[0017] Figure 2 A schematic diagram (second perspective) of a lithium battery graphite pulverizing device provided for an embodiment of this utility model.

[0018] Figure 3 This is a cross-sectional view of the present invention.

[0019] Figure 4 This utility model Figure 3 Enlarged view of point A.

[0020] Figure 5 This is an exploded view of the fixing cylinder and the layered plate of this utility model.

[0021] Figure 6 This is an exploded view of the fixed grinding cylinder and rotating grinding plate of this utility model.

[0022] Explanation of reference numerals in the attached figures: 1. Outer shell, 2. Feed inlet, 3. Stabilizer, 4. Motor, 5. Fixed cylinder, 6. Layered plate, 7. Main shaft, 8. Crushing rod, 9. Fixed grinding cylinder, 10. Rotating grinding plate, 11. Fixed shaft, 12. Rib groove, 13. Prism, 14. Spring, 15. Sleeve. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] This utility model provides a lithium battery graphite pulverizing device, such as... Figures 1 to 6 As shown.

[0025] Example 1: A lithium battery graphite crushing device includes a housing 1, which is a cylindrical structure with an open bottom. The top of the housing 1 is provided with a feed inlet 2 for feeding graphite raw materials into the interior of the housing 1. A crushing blade is installed inside the housing 1. The crushing blade includes a main shaft 7 and multiple crushing parts. The main shaft 7 is coaxially rotatably installed inside the housing 1, and the main shaft 7 is fixedly connected to the motor shaft of a motor 4 installed above the housing 1. The rotation of the motor shaft of the motor 4 can drive the main shaft 7 to rotate, thereby enabling the crushing parts to crush the graphite particles.

[0026] The shell 1 is also equipped with a grading section, which is located outside the crushing cutter. The grading section includes multiple crushing chambers, which are distributed from top to bottom along the axial direction of the main shaft 7. The multiple crushing sections are located in different crushing chambers. The graphite raw material fed into the shell 1 through the feed port 2 will enter the interior of the grading section and be crushed by the crushing cutter. Particles that meet the particle size requirements will be discharged directly through the grading section, while particles that do not meet the requirements will be graded into different crushing chambers according to their particle size. This avoids excessive graphite particles in each crushing chamber and prevents mutual interference between particles, which would lead to prolonged crushing time, increased energy consumption, and reduced efficiency.

[0027] Example 2: The grading section includes a fixed cylinder 5 and multiple layered plates 6. The fixed cylinder 5 is a cylindrical structure with open ends. The fixed cylinder 5 is fixedly connected to the inner side of the upper end of the outer shell 1. The multiple layered plates 6 are distributed from top to bottom inside the fixed cylinder 5 along the axial direction of the main shaft 7, dividing the interior of the fixed cylinder 5 into multiple crushing chambers. The layered plates 6 and the main shaft 7 are rotatably connected. Both the layered plates 6 and the fixed cylinder 5 are provided with filter holes. The filter holes on the multiple layered plates 6 are progressively smaller from top to bottom. The diameter of the filter holes on the fixed cylinder 5 is the same as the diameter of the filter holes on the bottommost layered plate 6.

[0028] During the crushing process, qualified graphite particles are discharged directly through the fixed cylinder 5 or the bottom layer plate 6, while unqualified particles are graded layer by layer by multiple layer plates 6 to ensure that the number of graphite particles inside each crushing chamber is not too large, thus affecting the crushing effect.

[0029] The crushing section includes multiple crushing rods 8, which are fixedly connected to the main shaft 7 and are spirally distributed from top to bottom on the main shaft 7, so as to better crush the graphite particles during the rotation of the main shaft 7.

[0030] Example 3: Based on Embodiment 2, a grinding section is provided. Graphite particles discharged from the classification section enter the grinding section, are ground by the grinding section, and then discharged. The grinding section includes: The fixed grinding cylinder 9 and the rotating grinding plate 10 are provided. The cross-sectional shape of the fixed grinding cylinder 9 is "<". Its upper open end is fixedly connected to the inner wall of the outer shell 1. The upper folded part is used to collect and guide graphite particles, and the inner side of the lower folded part is provided with grinding grooves.

[0031] The rotating grinding plate 10 is connected to the main shaft 7 via a connecting part. The rotation of the motor 4 can drive the rotating grinding plate 10 to rotate. The rotating grinding plate 10 is convex in shape and can collect and guide the graphite particles falling from the grading part. The upper side of the rotating grinding plate 10 fits against the inner side of the folded part of the fixed grinding cylinder 9, and it is provided with grinding grooves that match the fixed grinding cylinder 9. The graphite particles falling from the grading part will enter between the rotating grinding plate 10 and the fixed grinding cylinder 9 under the collection and guidance of the fixed grinding cylinder 9 and be discharged after grinding.

[0032] The connecting part includes a fixed shaft 11 and a prism 13. The fixed shaft 11 is fixedly connected to the main shaft 7. The lower end face of the fixed shaft 11 is provided with a groove 12. The prism 13 is slidably installed inside the groove 12. A spring 14 is connected between the upper end of the prism 13 and the bottom side wall of the groove 12. The lower end of the prism 13 is fixedly connected to the rotating grinding plate 10. The spring 14 provides an upward pulling force, so that the rotating grinding plate 10 can be pressed against the fixed grinding cylinder 9 to ensure the grinding effect. The arrangement of the prism 13 and the groove 12 can make the main shaft 7 stably drive the rotating grinding plate 10 to rotate.

[0033] In order to enable the rotating grinding plate 10 to rotate stably, a sleeve 15 is fixedly provided on the lower side of the rotating grinding plate 10. The sleeve 15 is inserted into the stabilizer 3 fixedly connected inside the outer shell 1, so that the sleeve 15 can rotate stably.

[0034] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A graphite pulverizing device for lithium batteries, characterized in that, include: The outer shell (1) is a cylindrical shape with an opening at the lower end, and the upper end of the outer shell (1) is provided with a feed inlet (2). The crushing cutter is coaxially mounted inside the housing (1) and driven by a motor (4) mounted on the housing (1); The grading section is sleeved on the outside of the crushing cutter and fixedly connected to the inner wall of the outer shell (1). The grading section includes multiple crushing chambers and is used to separate graphite of different particle sizes generated during crushing into different crushing chambers for continuous crushing. The graded section includes: The fixed cylinder (5) is a cylindrical shape with open ends. It is coaxially installed inside the outer shell (1) and fixedly connected to the upper inner side of the outer shell (1). Multiple layered plates (6) are distributed along the axial direction of the fixed cylinder (5) inside the fixed cylinder (5); Each of the multiple layered plates (6) is provided with filter holes, and the diameter of the filter holes on the multiple layered plates (6) decreases from top to bottom. The side wall of the fixed cylinder (5) is also provided with filter holes, and the diameter of the filter holes on the fixed cylinder (5) is adapted to the filter holes on the bottommost layer plate (6). The lower end of the outer casing (1) is provided with a grinding part, the grinding part comprising: A fixed grinding cylinder (9) is fixedly connected to the inside of the outer shell (1); The rotating grinding plate (10) is located below the fixed grinding cylinder (9) and is driven by the motor (4); Among them, the graphite particles discharged from the inside of the classification section enter between the fixed grinding cylinder (9) and the rotating grinding plate (10), and are discharged after grinding; The fixed grinding cylinder (9) has a cross-sectional shape of "<", and its open end on the upper side is fixedly connected to the inner wall of the outer shell (1). Grinding marks are provided on the inner side of the folded part on the lower side. The rotating grinding plate (10) is convex in shape, and its upper end is connected to the crushing tool through a connecting part. The upper side of the rotating grinding plate (10) is provided with grinding patterns that are compatible with the fixed grinding cylinder (9). The connecting part includes: A fixed shaft (11) is fixedly connected to the crushing tool, and a groove (12) is provided on the lower side of the fixed shaft (11). Prism (13), the prism (13) is slidably connected to the groove (12), and a spring (14) is connected between the upper end of the prism (13) and the groove wall of the groove (12), and the lower end of the prism (13) is fixedly connected to the rotating grinding plate (10). The spring (14) has a clamping force that causes the rotating grinding plate (10) to press against the fixed grinding cylinder (9).

2. The lithium battery graphite pulverizing device of claim 1, wherein, The crushing tool includes: The main shaft (7) is coaxially rotatably installed inside the housing (1), and the main shaft (7) is fixedly connected to the motor shaft of the motor (4); Multiple sets of crushing sections are fixedly installed on the main shaft (7) along the axial direction of the main shaft (7), and a set of crushing sections is provided above each layer plate (6).

3. The lithium battery graphite pulverizing device of claim 2, wherein, The crushing part includes: Multiple crushing rods (8) are fixedly mounted on the main shaft (7).

4. The lithium battery graphite pulverizing device of claim 1, wherein, The lower side of the rotating mill plate (10) is fixedly connected with a sleeve (15), which is inserted with a stabilizing frame (3) fixedly connected inside the shell (1).

Images