Lithium battery raw material particle grader

Abstract

The utility model discloses a lithium battery raw material particle grader which comprises a barrel body and a material receiving barrel connected to the barrel body, and a first screening unit, a second screening unit and a third screening unit are sequentially connected in the barrel body from top to bottom. A first material receiving cavity, a second material receiving cavity and a third material receiving cavity are sequentially formed in the material receiving barrel from top to bottom, a first discharging port, a second discharging port and a third discharging port are sequentially formed in the barrel from top to bottom, the first discharging port is communicated with the first material receiving cavity, the second discharging port is communicated with the second material receiving cavity, and the third discharging port is communicated with the third material receiving cavity. The third material outlet is communicated with the third material receiving chamber; wherein the two ends of the barrel are connected to a rotating mechanism respectively, a water pipe is arranged in the middle of the barrel, a first spraying head is arranged on the water pipe, the water pipe penetrates through the rotating mechanism and then is connected to a rotating connector, and the rotating connector is connected to a water supply mechanism; and a second spraying head is arranged on the inner wall of the cylinder body.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium battery production, and in particular relates to a lithium battery raw material particle classifier. Background Art

[0002] Lithium batteries generally use lithium alloy metal oxides as the positive electrode material, graphite as the negative electrode material, and a non-aqueous electrolyte. There are many positive electrode materials for lithium-ion batteries, with mainstream products mostly using lithium iron phosphate, lithium nickel cobalt manganese oxide, manganese dioxide, lithium cobalt oxide, and manganese oxide. Graphite is often used as the negative electrode material. As the primary material for lithium-ion batteries, the performance of the negative electrode material has a significant impact on parameters such as the cycle, rate, and compaction density of the lithium-ion battery. Parameters such as the particle size and distribution of the material, and the surface morphology of the material, have a significant impact on the electrochemical properties of the material. The production of graphite negative electrode materials for lithium batteries uses a classifier. Existing classifiers are used for the production of graphite negative electrode materials for lithium batteries, but graphite classifiers leave a large amount of dirt during use, affecting subsequent grading. Utility Model Content

[0003] In view of the deficiencies of the prior art, the purpose of the present invention is to provide a lithium battery raw material particle classifier to solve the problem of dirt remaining in the classifier when classifying the negative electrode material of the lithium battery in the prior art.

[0004] A lithium battery raw material particle classifier comprises a cylinder and a receiving cylinder connected to the cylinder, wherein a first screening unit, a second screening unit and a third screening unit are connected in sequence from top to bottom in the cylinder, a first receiving chamber, a second receiving chamber and a third receiving chamber are formed in sequence from top to bottom in the receiving cylinder, and a first discharge port, a second discharge port and a third discharge port are arranged in sequence from top to bottom in the cylinder, the first discharge port is connected to the first receiving chamber, the second discharge port is connected to the second receiving chamber, and the third discharge port is connected to the third receiving chamber.

[0005] The two ends of the cylinder are respectively connected to the rotating mechanism, a water pipe is provided in the middle of the cylinder, a first spray head is provided on the water pipe, the water pipe passes through the rotating mechanism and is connected to the rotary joint, and the rotary joint is connected to the water supply mechanism; a second spray head is provided on the inner wall of the cylinder.

[0006] Preferably, the first screening unit, the second screening unit and the third screening unit all include screening nets.

[0007] Preferably, both ends of the cylinder are respectively connected to end covers, and the end covers are connected to the rotating mechanism.

[0008] Preferably, a feed port is provided on the top of the cylinder, the feed port is connected to a fixed cylinder, and the fixed cylinder is connected to a feed hopper.

[0009] Preferably, a discharge port is provided at the bottom of the cylinder, and a blocking plate is connected to the discharge port.

[0010] Preferably, the first partition and the second partition are connected in sequence from top to bottom in the receiving barrel, the first receiving chamber is formed between the first partition and the top of the receiving barrel, the second receiving chamber is formed between the first partition and the second partition, and the third receiving chamber is formed between the second partition and the bottom of the receiving barrel.

[0011] Preferably, the rotating mechanism includes a rotating shaft and a connecting member connected to the rotating shaft, and the connecting member is used to be connected to the driving member.

[0012] The utility model provides a lithium battery raw material particle classifier. Utilizing a water pipe, a first spray head, and a rotary joint, the drum can be sprayed and cleaned while rotating. The second spray head can also spray and clean the drum while stationary, effectively cleaning the drum while maintaining proper cleaning efficiency. Furthermore, a material collecting drum is disposed on the periphery of the drum, and the rotation of the drum is utilized to screen and classify the material. Due to centrifugal force, larger particles are unable to pass through each screening unit. The material collecting drum collects the material that has not passed through the screening units in each level of the drum. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly describes the drawings required for describing the embodiments. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0014] Figure 1 This is a structural diagram of the lithium battery grading machine provided by the utility model;

[0015] Figure 2 It is a top view of the cylinder of the lithium battery classifier of the present invention. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "top", "bottom", "top surface", "bottom surface", "inside", "outside", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0018] In the description of this utility model, "several" means one or more, "more" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The terms "first," "second," and "third" are used solely for descriptive purposes and to distinguish technical features, and are not to be construed as indicating or implying relative importance, or implicitly specifying the number or order of the technical features indicated.

[0019] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," and "set" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium, or they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances. The following describes an embodiment of the present invention based on its overall structure.

[0020] See Figure 1 and Figure 2 A lithium battery raw material particle classifier comprises a cylinder 1 and a receiving cylinder 2 connected to the cylinder 1, wherein a first screening unit 41, a second screening unit 42 and a third screening unit 43 are sequentially connected in the cylinder 1 from top to bottom, a first receiving chamber 21, a second receiving chamber 22 and a third receiving chamber 23 are sequentially formed in the receiving cylinder 2 from top to bottom, and a first discharge port 31, a second discharge port 32 and a third discharge port 33 are sequentially arranged in the cylinder 1 from top to bottom, the first discharge port 31 is connected to the first receiving chamber 21, the second discharge port 32 is connected to the second receiving chamber 22, and the third discharge port 33 is connected to the third receiving chamber 23.

[0021] In which, the two ends of the cylinder 1 are respectively connected to the rotating mechanism, a water pipe 5 is provided in the middle of the cylinder 1, a first spray head 61 is provided on the water pipe 5, the water pipe 5 passes through the rotating mechanism and is connected to the rotary joint 7, and the rotary joint 7 is connected to the water supply mechanism; a second spray head 62 is provided on the inner wall of the cylinder 1.

[0022] See Figure 1 and Figure 2 The cylinder 1 can rotate and use centrifugal force to classify the negative electrode material of the lithium battery. Under the action of centrifugal force, the first screening unit 41, the second screening unit 42 and the third screening unit 43 in the cylinder 1 can screen out larger particles of graphite particles. Under the action of centrifugal force, the screened graphite particles will move to the edge of the cylinder 1 and enter the first receiving chamber 21, the second receiving chamber 22 and the third receiving chamber 23 from the first discharge port 31, the second discharge port 32 and the third discharge port 33 respectively.

[0023] See Figure 1 and Figure 2 The first, second, and third discharge ports 31, 32, and 33 can each be connected to a discharge pipe, each connected to the first, second, and third receiving chambers 21, 22, and 23, respectively. The sizes of the first, second, and third discharge ports 31, 32, 33 are configured accordingly. The first discharge port 31 is located above the first screening unit 41, the second discharge port 32 is located above the second screening unit 42, and the third discharge port 33 is located above the third screening unit 43.

[0024] Specifically, after the graphite particles are screened by the first screening unit 41 , the second screening unit 42 and the third screening unit 43 in the cylinder 1 , the graphite particles that finally meet the requirements fall into the inner bottom of the cylinder 1 and are collected at the inner bottom of the cylinder 1 .

[0025] Specifically, as the barrel 1 rotates, the water pipe 5 can also rotate accordingly. Due to the provision of the rotary joint 7, the water pipe 5 can achieve rotational water flow, thereby enabling the first spray head 61 to spray and clean as the barrel 1 rotates, enhancing the cleaning effect. The second spray head 62 can spray and clean the inner wall of the barrel 1 and the first, second, and third screening units 41, 42, and 43 when the barrel 1 is stationary. To enhance the cleaning effect, the number of first and second spray heads 61, 62, as well as their spray angles, can be set accordingly.

[0026] Specifically, the first screening unit 41 , the second screening unit 42 and the third screening unit 43 all include screening nets.

[0027] Specifically, the two ends of the cylinder 1 are respectively connected to end caps 101, and the end caps 101 are connected to the rotating mechanism. The end caps 101 are used to seal the two ends of the cylinder 1 to form a relatively closed space.

[0028] See Figure 1 and Figure 2 Specifically, a feed port 102 is provided at the top of the cylinder 1, to which a fixed cylinder 9 is connected, and a feed hopper 8 is connected. The feed port 102 is a circular feed port, on which a fixed cylinder 9 is provided, and on which a feed hopper 8 is provided. The feed hopper 8 is an open fan-shaped hopper for easy material distribution.

[0029] See Figure 1 and Figure 2 Specifically, a discharge port is provided at the bottom of the cylinder 1, and a blocking plate 12 is connected to the discharge port. The discharge port at the bottom of the cylinder 1 is set with reference to the feed port 102. The discharge port is a circular discharge port. The blocking plate 12 can block the discharge port. When the material at the bottom of the cylinder 1 accumulates to a certain extent, the blocking plate 12 is opened to collect the screened graphite particles and carry out subsequent processing.

[0030] See Figure 1 and Figure 2 Specifically, the receiving barrel 2 is sequentially connected with a first partition 201 and a second partition 202 from top to bottom. The first receiving chamber 21 is formed between the first partition 201 and the top of the receiving barrel 2, the second receiving chamber 22 is formed between the first partition 201 and the second partition 202, and the third receiving chamber 23 is formed between the second partition 202 and the bottom of the receiving barrel 2. Specifically, the receiving barrel 2 is connected to the outside of the barrel body 1 and can rotate simultaneously with the barrel body 1. Each receiving chamber formed on the receiving barrel 2 is provided with a material port for each receiving chamber to discharge the material inside.

[0031] See Figure 1 Specifically, the rotating mechanism includes a rotating shaft 10 and a connecting member 11 connected to the rotating shaft 10 , wherein the connecting member 11 is used to connect to the driving member. Specifically, the rotating shaft 10 is connected to the end cover 101 .

[0032] In summary, the present invention provides a lithium battery raw material particle classifier that can solve the problem of dirt remaining in the classifier when classifying negative electrode materials of lithium batteries in the prior art.

[0033] The foregoing descriptions of specific exemplary embodiments of the present invention are for the purpose of illustration and description. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not limitations on the present invention. The specific features, structures, materials or characteristics described can be combined in an appropriate manner in any one or more embodiments or examples. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can make modifications, substitutions, variations and various different choices and changes to the embodiments without creative contribution as needed after reading this specification without departing from the principles and purpose of the present invention, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A lithium battery raw material particle classifier, characterized in that: The invention comprises a cylinder (1) and a receiving cylinder (2) connected to the cylinder (1), wherein a first screening unit (41), a second screening unit (42) and a third screening unit (43) are sequentially connected in the cylinder (1) from top to bottom, a first receiving chamber (21), a second receiving chamber (22) and a third receiving chamber (23) are sequentially formed in the receiving cylinder (2) from top to bottom, and a first discharge port (31), a second discharge port (32) and a third discharge port (33) are sequentially provided in the cylinder (1) from top to bottom, the first discharge port (31) is connected to the first receiving chamber (21), the second discharge port (32) is connected to the second receiving chamber (22), and the third discharge port (33) is connected to the third receiving chamber (23); The two ends of the cylinder (1) are respectively connected to the rotating mechanism, a water pipe (5) is provided in the middle of the cylinder (1), a first spray head (61) is provided on the water pipe (5), the water pipe (5) passes through the rotating mechanism and is connected to the rotary joint (7), and the rotary joint (7) is connected to the water supply mechanism; a second spray head (62) is provided on the inner wall of the cylinder (1).

2. The lithium battery raw material particle classifier according to claim 1, characterized in that: The first screening unit (41), the second screening unit (42) and the third screening unit (43) all include screening nets.

3. The lithium battery raw material particle classifier according to claim 1, characterized in that: Both ends of the cylinder (1) are respectively connected to end covers (101), and the end covers (101) are connected to the rotating mechanism.

4. The lithium battery raw material particle classifier according to claim 1, characterized in that: A feed port (102) is provided at the top of the cylinder (1), a fixed cylinder (9) is connected to the feed port (102), and a feed hopper (8) is connected to the fixed cylinder (9).

5. The lithium battery raw material particle classifier according to claim 1, characterized in that: A discharge port is provided at the bottom of the cylinder (1), and a blocking plate (12) is connected to the discharge port.

6. The lithium battery raw material particle classifier according to claim 1, characterized in that: The receiving barrel (2) is sequentially connected with a first partition (201) and a second partition (202) from top to bottom. The first receiving chamber (21) is formed between the first partition (201) and the top of the receiving barrel (2), the second receiving chamber (22) is formed between the first partition (201) and the second partition (202), and the third receiving chamber (23) is formed between the second partition (202) and the bottom of the receiving barrel (2).

7. The lithium battery raw material particle classifier according to claim 1, characterized in that: The rotating mechanism comprises a rotating shaft (10) and a connecting member (11) connected to the rotating shaft (10), wherein the connecting member (11) is used to be connected to a driving member.

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