A filtration and purification device for the production of graphite anodes for lithium-ion batteries

Abstract

This utility model discloses a filtration and purification device for the production of graphite anodes for lithium-ion batteries, belonging to the field of graphite filtration and purification technology. It includes: a shell with a feed pipe installed at the upper end and a discharge port at the lower end; and a sieve frame installed inside the shell for screening graphite entering the shell. The sieve frame reciprocates while rotating around the axis of the shell. This utility model can cause the sieve frame to oscillate while rotating, effectively dispersing graphite particles and impurities, improving the screening effect. Furthermore, the distribution plate allows graphite to disperse into the interior of the sieve frame, thus avoiding localized overload and affecting screening efficiency.

Description

Technical Field

[0001] This utility model relates to the field of graphite filtration and purification technology, specifically to a filtration and purification device for the production of graphite anodes for lithium-ion batteries. Background Technology

[0002] In the production process of graphite anodes for lithium-ion batteries, graphite typically requires filtration and purification. Traditional filtration devices generally use sieving to screen graphite; to improve sieving efficiency, the sieving device is usually vibrated. However, these devices often employ a single linear vibration mode, which cannot effectively disperse graphite particles and impurities, affecting the sieving effect. Furthermore, the feeding method in existing equipment is mostly vertical drop, causing graphite to easily accumulate in the central area of ​​the screen frame, resulting in localized overload and reducing sieving efficiency. To address these problems, this invention provides a filtration and purification device for the production of graphite anodes for lithium-ion batteries. Utility Model Content

[0003] To address the aforementioned technical shortcomings, the purpose of this utility model is to provide a filtration and purification device for the production of graphite anodes for lithium-ion batteries. This device can cause the screen frame to oscillate while rotating, effectively dispersing graphite particles and impurities, thus improving the screening effect. Furthermore, the distribution plate allows graphite to be dispersed into the interior of the screen frame, thereby avoiding local overload and the problem of affecting screening efficiency.

[0004] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: This utility model provides a filtration and purification device for the production of graphite anodes for lithium-ion batteries, comprising:

[0005] The outer casing has a feed pipe installed at its upper end and a discharge port at its lower end.

[0006] A sieve frame, installed inside the housing, is used to sieve graphite entering the housing.

[0007] The sieve frame oscillates back and forth while rotating around the axis of the outer shell.

[0008] Preferably, a swing ring is rotatably mounted on the outer side of the screen frame. The swing ring is rotatably mounted inside the housing via a fixed shaft fixedly connected thereto and is driven by an electric push rod mounted on the housing.

[0009] Preferably, any of the fixed shafts passes through the outer casing and is fixedly connected to a fixed rod, the fixed rod being hinged to the output rod of the electric push rod, and the housing of the electric push rod being hingedly mounted on the outer casing.

[0010] Preferably, an installation ring is fixedly connected to the outer ring surface of the screen frame and above the swing ring.

[0011] Preferably, the outer edge of the mounting ring is folded downwards.

[0012] Preferably, the feed pipe is rotatably connected to the outer casing, and the feed pipe is driven by a motor mounted on the outer casing. Multiple suspension rods are connected between the lower side of the feed pipe and the screen frame.

[0013] Preferably, the feed pipe is fixedly connected to a driven gear rotatably mounted on the housing, the driven gear is meshed with a driving gear rotatably mounted on the housing, and the driving gear is fixedly connected to the motor shaft of the motor.

[0014] Preferably, a distribution plate is provided below the feed pipe. The distribution plate is in the shape of a round arch with a convex center, and the distribution plate is connected to the feed pipe by a plurality of mounting rods fixedly connected thereon.

[0015] Preferably, a support ring is provided on the outer side of the swing ring, the support ring is fixedly connected to the inner side of the outer shell, the upper opening of the screen frame is folded outward to form a convex circle, and a sealing film is connected between the folded part of the screen frame and the support ring.

[0016] Preferably, the sieve frame is a concave arch shape in the middle.

[0017] The beneficial effects of this utility model are as follows:

[0018] This invention utilizes the combined rotation and reciprocating oscillation motion of the screen frame to create a multi-dimensional vibration screening mode that integrates centrifugal force and shear force. This effectively avoids the problem of low filtration efficiency caused by traditional single vibration. Furthermore, by designing the screen frame as a concave arch shape in the middle, the screened impurities can be concentrated in the center, preventing them from affecting the filtration efficiency.

[0019] This invention sets the distribution plate as a centrally convex arch, which allows graphite to flow along the distribution plate after falling onto it, entering the interior of the screen frame from the periphery and then converging towards the center of the screen frame. This achieves uniform dispersion and flow of graphite within the screen frame, effectively reducing central accumulation and further improving filtration efficiency. Attached Figure Description

[0020] 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.

[0021] Figure 1 This is a schematic diagram of a filtration and purification device for producing graphite anodes for lithium-ion batteries, provided as an embodiment of the present invention.

[0022] Figure 2 This is a top view of the present invention.

[0023] Figure 3 This utility model Figure 2 Sectional view at point AA.

[0024] Figure 4 This utility model Figure 3 Enlarged view of point A.

[0025] Figure 5 This is a schematic diagram showing the connection between the feed pipe, the hanging rod, and the screen frame of this utility model.

[0026] Figure 6 This is an exploded view of the screen frame, mounting ring, and swing ring of this utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Outer shell, 2. Feed pipe, 3. Screen frame, 4. Swing ring, 5. Fixed shaft, 6. Electric push rod, 7. Fixed rod, 8. Sealing membrane, 9. Mounting ring, 10. Hanging rod, 11. Driven gear, 12. Drive gear, 13. Motor, 14. Distributor plate, 15. Mounting rod, 16. Support ring. Detailed Implementation

[0029] 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.

[0030] This utility model provides a filtration and purification device for the production of graphite anodes for lithium-ion batteries, such as... Figures 1 to 6 As shown.

[0031] Example 1:

[0032] A filtration and purification device for producing graphite anodes for lithium-ion batteries includes a housing 1. A feed pipe 2 is installed on the top of the housing 1. The feed pipe 2 is funnel-shaped, wider at the top and narrower at the bottom. An outlet is provided at the bottom of the housing 1. A screen frame 3 that can rotate around the axis of the housing 1 is installed inside the housing 1. Graphite entering the housing 1 through the feed pipe 2 will enter the interior of the screen frame 3, thereby achieving filtration and purification. A swing ring 4 is rotatably mounted on the screen frame 3 via a mounting ring 9 fixedly connected to its outer surface. The outer ring of the mounting ring 9 is folded downwards. The cross-section of the mounting ring 9 is "┐" shaped, which can stably connect the screen frame 3 and the swing ring 4 together. The swing ring 4 is rotatably mounted inside the housing 1 via fixed shafts 5 symmetrically fixedly connected to it. Any fixed shaft 5 passes through the housing 1 and is fixedly connected to a fixed rod 7. The end of the fixed rod 7 away from the fixed shaft 5 is hinged to the output rod of an electric push rod 6. The housing of the electric push rod 6 is rotatably mounted on the housing 1. By controlling the extension and retraction of the output rod of the electric push rod 6, the swing ring 4 can be controlled to drive the screen frame 3 to swing back and forth inside the housing 1.

[0033] A support ring 16 is fixedly connected to the outside of the swing ring 4 and the inside of the outer shell 1. The upper opening of the screen frame 3 is folded outward to form a convex circle, and a sealing film 8 is connected between the folded part of the screen frame 3 and the support ring 16 to prevent graphite from leaking from the gap between the screen frame 3 and the outer shell 1 to the bottom of the screen frame 3 during the screening process.

[0034] Example 2:

[0035] Based on Embodiment 1, in order to improve the filtration effect, multiple hanging rods 10 are fixedly installed on the lower side of the feed pipe 2. The ends of the multiple hanging rods 10 away from the feed pipe 2 are fixedly connected to the screen frame 3. The feed pipe 2 is fixedly connected to the driven gear 11 rotatably mounted on the outer shell 1. The driven gear 11 is meshed with the driving gear 12 rotatably mounted on the outer shell 1. The driving gear 12 is fixedly connected to the motor shaft of the motor 13. The motor 13 is mounted on the outer shell 1. The rotation of the motor shaft of the motor 13 can drive the driving gear 12 to rotate, thereby driving the feed pipe 2 to rotate through the driven gear 11, which in turn drives the screen frame 3 to rotate. The screen frame 3 rotates while reciprocating, forming a multi-dimensional vibrating screening mode with the combined action of centrifugal force and shear force, thereby improving the filtration effect.

[0036] Example 3:

[0037] Based on Embodiment 2, in order to improve the filtration efficiency, a distribution plate 14 is provided below the feed pipe 2. The distribution plate 14 is a round arch with a convex shape in the middle, and the distribution plate 14 is connected to the feed pipe 2 through multiple mounting rods 15 fixedly connected thereto. The shape of the screen frame 3 is set as a round arch with a concave shape in the middle.

[0038] The graphite entering the feed pipe 2 will fall onto the distribution plate 14 and, guided by the distribution plate 14, slide down to the periphery of the distribution plate 14 and enter the screen frame 3. Since the screen frame 3 is concave in the middle, the graphite will slide towards the middle of the screen frame 3 after entering the screen frame 3. The graphite can be better dispersed during the sliding process, reducing the central accumulation caused by traditional vertical feeding, thereby improving the filtration efficiency.

[0039] 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 filtration and purification device for producing graphite anodes for lithium-ion batteries, characterized in that, include: The outer shell (1) has a feed pipe (2) installed at its upper end and a discharge port at its lower end. A sieve frame (3) is installed inside the outer shell (1) for screening graphite entering the outer shell (1); The sieve frame (3) oscillates back and forth while rotating around the axis of the outer shell (1).

2. The filtration and purification device for producing graphite anodes for lithium-ion batteries as described in claim 1, characterized in that, A swing ring (4) is rotatably mounted on the outside of the sieve frame (3). The swing ring (4) is rotatably mounted inside the outer shell (1) via a fixed shaft (5) fixedly connected thereto, and is driven by an electric push rod (6) mounted on the outer shell (1).

3. The filtration and purification device for producing graphite anodes for lithium-ion batteries as described in claim 2, characterized in that, Any of the fixed shafts (5) passes through the outer shell (1) and is fixedly connected to a fixed rod (7). The fixed rod (7) is hinged to the output rod of the electric push rod (6). The housing of the electric push rod (6) is hinged to the outer shell (1).

4. The filtration and purification device for producing graphite anodes for lithium-ion batteries as described in claim 2, characterized in that, An installation ring (9) is fixedly connected to the outer ring surface of the sieve frame (3) and above the swing ring (4).

5. The filtration and purification apparatus for producing graphite anodes for lithium-ion batteries as described in claim 4, characterized in that, The outer edge of the mounting ring (9) is folded downwards.

6. The filtration and purification apparatus for producing graphite anodes for lithium-ion batteries as described in claim 2, characterized in that, The feed pipe (2) is rotatably connected to the outer shell (1), and the feed pipe (2) is driven by a motor installed on the outer shell (1). Multiple hanging rods (10) are connected between the lower side of the feed pipe (2) and the screen frame (3).

7. The filtration and purification apparatus for producing graphite anodes for lithium-ion batteries as described in claim 6, characterized in that, The feed pipe (2) is fixedly connected to the driven gear (11) rotatably mounted on the outer shell (1), the driven gear (11) meshes with the driving gear (12) rotatably mounted on the outer shell (1), and the driving gear (12) is fixedly connected to the motor shaft of the motor (13).

8. The filtration and purification apparatus for producing graphite anodes for lithium-ion batteries as described in claim 6, characterized in that, Below the feed pipe (2) is a distribution plate (14). The distribution plate (14) is a round arch with a convex center. The distribution plate (14) is connected to the feed pipe (2) by multiple mounting rods (15) fixedly connected to it.

9. A filtration and purification device for producing graphite anodes for lithium-ion batteries as described in claim 2, characterized in that, The swing ring (4) is provided with a support ring (16) on the outside. The support ring (16) is fixedly connected to the inner side of the outer shell (1). The upper opening of the screen frame (3) is folded outward to form a convex circle. A sealing film (8) is connected between the folded part of the screen frame (3) and the support ring (16).

10. The filtration and purification apparatus for producing graphite anodes for lithium-ion batteries as described in claim 1, characterized in that, The sieve frame (3) is a concave arch shape in the middle.

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