A lithium manganate dry method uniform mixing device

Abstract

The utility model discloses a lithium manganate dry method even mixing device relates to mixing technical field. A lithium manganate dry method even mixing device, including electric push rod, support base and mounting bracket, the top rotation of support base is connected with rotating stand, and electric push rod rotation is connected in the inside of support base, and the telescopic end of electric push rod rotation is connected in the bottom of mounting bracket, and the inside rotation of mounting bracket is connected with mixing barrel, and one end of mixing barrel is connected with rotating stand, and the powder cleaning structure is located on the rotating stand, moves through the inside wall of mixing barrel of scraping material ring to scrape the powder remaining on the inside wall down conveniently, since the scraping material ring is closely combined with the inside wall of mixing barrel, can effectively remove the powder that adheres on the inside wall, avoids the accumulation of powder on the inside wall of mixing barrel, and can clean the residual powder of the inside wall of mixing barrel in time further, prevents the powder agglomeration, guarantees the material purity of each mixing operation, and further improves product quality.

Description

Technical Field

[0001] This utility model relates to the field of mixing technology, and in particular to a dry uniform mixing device for lithium manganese oxide. Background Technology

[0002] In the field of lithium-ion batteries, lithium manganese oxide is an important cathode material. Its performance directly affects key indicators such as battery capacity, cycle life, and safety. In the production process of lithium manganese oxide powder, dry uniform mixing is an extremely critical step. The degree of uniformity of mixing will significantly affect the consistency of chemical composition and microstructure uniformity of lithium manganese oxide material, and thus affect the overall performance of the battery.

[0003] During the dry mixing process of lithium manganese oxide, due to the certain viscosity and adsorption properties of the powder, some powder will inevitably adhere to the inner wall of the mixing tank during stirring. As the mixing process continues, the powder adhering to the tank wall will gradually accumulate. Since the powder adhering to the innermost part of the mixing tank is not easy to clean, the powder adhering to the inner wall of the mixing tank will gradually harden and clump if it is not cleaned for a long time. When the mixing device is used again to mix different batches or different proportions of lithium manganese oxide powder, these clumps of powder may fall off and mix into the new mixture, causing material contamination and seriously affecting product quality. Therefore, we propose a dry uniform mixing device for lithium manganese oxide. Utility Model Content

[0004] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a dry uniform mixing device for lithium manganese oxide. This device addresses the issue that during the dry mixing process of lithium manganese oxide, due to the inherent viscosity and adsorption properties of the powder, some powder inevitably adheres to the inner wall of the mixing drum during stirring. As the mixing process continues, the powder adhering to the drum wall gradually accumulates. Because the powder adhering to the innermost part of the mixing drum is difficult to clean, the powder adhering to the inner wall of the mixing drum will gradually harden and clump if not cleaned for a long time. When the mixing device is used again to mix different batches or different proportions of lithium manganese oxide powder, these clumps of powder may fall off and mix into the new mixture, causing material contamination and seriously affecting product quality.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dry uniform mixing device for lithium manganese oxide, comprising:

[0006] The electric push rod, support base, and mounting frame are provided. A rotating frame is rotatably connected to the top of the support base. The electric push rod is rotatably connected inside the support base. The telescopic end of the electric push rod is rotatably connected to the bottom of the mounting frame. A mixing cylinder is rotatably connected inside the mounting frame. One end of the mixing cylinder is rotatably connected to the rotating frame.

[0007] The powder cleaning structure is located on the rotating frame;

[0008] The powder cleaning structure includes a rotating tube, a fixed frame, a support frame, and an electric telescopic rod. The fixed frame is fixedly connected to the inside of the mixing cylinder, the rotating tube is rotatably connected to the inside of the mixing cylinder, one end of the rotating tube is rotatably connected to the inside of the fixed frame, and the end of the rotating tube away from the fixed frame rotatably passes through the rotating frame. The support frame is fixedly connected to the side of the rotating frame away from the mixing cylinder, and the electric telescopic rod is fixedly installed on the side of the support frame away from the rotating frame. The telescopic end of the electric telescopic rod slides into the inside of the rotating tube.

[0009] Preferably, the powder cleaning structure further includes a rotating sleeve and a scraper ring. Three limiting grooves are provided on the outer surface of the rotating tube. The rotating sleeve is rotatably connected to the telescopic end of the electric telescopic rod. The scraper ring is fixedly connected to the outer surface of the rotating sleeve. The outer side of the scraper ring is in close contact with the inner wall of the mixing cylinder. The three support rods on the scraper ring all pass through the corresponding limiting grooves. The cross-section of the scraper ring is a triangular structure.

[0010] Preferably, a plurality of stirring blades are fixedly connected to the outer surface of the rotating tube.

[0011] Preferably, a drive motor is fixedly installed on the side of the rotating frame away from the mixing cylinder, a bevel gear is fixedly connected to the output end of the drive motor, a bevel gear ring is fixedly sleeved on the outer surface of the rotating tube, the bevel gear ring contacts the side of the rotating frame away from the mixing cylinder, and the bevel gear meshes with the bevel gear ring.

[0012] Preferably, the rotating frame has two gears rotatably connected inside, and an internal gear ring is fixedly connected to the side of the mixing cylinder near the rotating frame. The internal gear ring is located inside the rotating frame, and both gears are meshed with the internal gear ring. A gear ring is fixedly sleeved on the outer surface of the rotating tube. The gear ring is located inside the rotating frame, and both gears are meshed with the gear ring.

[0013] Preferably, a sealing cap is threadedly connected to the side of the mixing cylinder away from the rotating frame, and a feed pipe communicating with the interior of the mixing cylinder is fixedly connected to the outer surface of the mixing cylinder, with a sealing cover threaded onto the feed pipe.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This dry uniform mixing device for lithium manganese oxide uses a scraper ring that moves along the inner wall of the mixing cylinder to easily scrape off residual powder. Because the scraper ring is in close contact with the inner wall of the mixing cylinder, it can effectively remove the powder adhering to the inner wall, avoiding the accumulation of powder on the inner wall of the mixing cylinder. This allows for timely cleaning of residual powder on the inner wall of the mixing cylinder, preventing powder agglomeration, ensuring the purity of materials in each mixing operation, and further improving product quality. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic cross-sectional view of the mixing cylinder of this utility model;

[0019] Figure 3 This is a schematic cross-sectional view of the rotating frame structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the scraper ring structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the cross-sectional structure of the rotating tube of this utility model.

[0022] Reference numerals in the attached drawings: 1. Support base; 2. Rotating frame; 3. Support frame; 4. Drive motor; 5. Electric telescopic rod; 6. Rotating tube; 7. Mixing cylinder; 8. Electric push rod; 9. Mounting frame; 10. Internal gear ring; 11. Stirring blade; 12. Bevel gear; 13. Bevel gear ring; 14. Gear; 15. Gear ring; 16. Scraper ring; 17. Limiting groove; 18. Rotating sleeve; 19. Sealing cover; 20. Fixing frame. Detailed Implementation

[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0024] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0026] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0027] Please see Figure 1-5 This utility model provides a technical solution: a dry uniform mixing device for lithium manganese oxide, comprising:

[0028] The electric push rod 8, the support base 1, and the mounting frame 9 are provided. The top of the support base 1 is rotatably connected to the rotating frame 2. The electric push rod 8 is rotatably connected inside the support base 1. The telescopic end of the electric push rod 8 is rotatably connected to the bottom of the mounting frame 9. The interior of the mounting frame 9 is rotatably connected to the mixing cylinder 7. One end of the mixing cylinder 7 is rotatably connected to the rotating frame 2.

[0029] The powder cleaning structure is located on the rotating frame 2;

[0030] The powder cleaning structure includes a rotating tube 6, a fixed frame 20, a support frame 3, and an electric telescopic rod 5. The fixed frame 20 is fixedly connected to the inside of the mixing cylinder 7. The rotating tube 6 is rotatably connected to the inside of the mixing cylinder 7. One end of the rotating tube 6 is rotatably connected to the inside of the fixed frame 20. The end of the rotating tube 6 away from the fixed frame 20 rotatably passes through the rotating frame 20. The support frame 3 is fixedly connected to the side of the rotating frame 2 away from the mixing cylinder 7. The electric telescopic rod 5 is fixedly installed on the side of the support frame 3 away from the rotating frame 2. The telescopic end of the electric telescopic rod 5 slides into the inside of the rotating tube 6.

[0031] The powder cleaning structure also includes a rotating sleeve 18 and a scraper ring 16. Three limiting grooves 17 are provided on the outer surface of the rotating tube 6. The rotating sleeve 18 is rotatably sleeved on the telescopic end of the electric telescopic rod 5. The scraper ring 16 is fixedly connected to the outer surface of the rotating sleeve 18. The outer side of the scraper ring 16 is in close contact with the inner wall of the mixing cylinder 7. The three support rods on the scraper ring 16 all pass through the corresponding limiting grooves 17. The cross-section of the scraper ring 16 is a triangular structure. Multiple stirring blades 11 are fixedly connected to the outer surface of the rotating tube 6.

[0032] A drive motor 4 is fixedly installed on the side of the rotating frame 2 away from the mixing cylinder 7. A bevel gear 12 is fixedly connected to the output end of the drive motor 4. A bevel gear ring 13 is fixedly sleeved on the outer surface of the rotating tube 6. The bevel gear ring 13 contacts the side of the rotating frame 2 away from the mixing cylinder 7, and the bevel gear 12 and the bevel gear ring 13 are meshed together.

[0033] The rotating frame 2 has two gears 14 rotatably connected inside. The mixing cylinder 7 is fixedly connected to an internal gear ring 10 on the side near the rotating frame 2. The internal gear ring 10 is located inside the rotating frame 2. Both gears 14 are meshed with the internal gear ring 10. A gear ring 15 is fixedly sleeved on the outer surface of the rotating tube 6. The gear ring 15 is located inside the rotating frame 2. Both gears 14 are meshed with the gear ring 15. A sealing cover 19 is threadedly connected to the side of the mixing cylinder 7 away from the rotating frame 2. A feed pipe communicating with the interior of the mixing cylinder 7 is fixedly connected to the outer surface of the mixing cylinder 7. A sealing cover is threadedly sleeved on the feed pipe.

[0034] Furthermore, when using this device, the extension and retraction of the electric push rod 8 can drive the mounting frame 9 to rotate around its rotational connection point with the support base 1, thereby allowing the mixing cylinder 7 to tilt at different angles under the support of the rotating frame 2, which facilitates the mixing of materials and subsequent unloading operations. Multiple stirring blades 11 are fixedly connected to the outer surface of the rotating tube 6. When the drive motor 4 is started, the output end of the drive motor 4 drives the bevel gear 12 to rotate. Since the bevel gear 12 is meshed with the bevel ring 13 fixedly sleeved on the rotating tube 6, the bevel ring 13 will drive the rotating tube 6 to rotate inside the mixing cylinder 7 under the drive of the bevel gear 12, thereby driving the stirring blades 11 to stir and mix the lithium manganese oxide powder in the mixing cylinder 7.

[0035] During the rotation of the rotating tube 6, the meshing transmission between the gear ring 15 and the gear 14, and the meshing transmission between the gear 14 and the internal gear ring 10, will drive the mixing cylinder 7 and the rotating tube 6 to rotate in opposite directions, so that the lithium manganese oxide powder is more fully mixed in the mixing cylinder 7, improving the uniformity of mixing. When the mixing work is completed, the electric push rod 8 retracts and unscrews the sealing cover 19, so as to facilitate the discharge of the mixed material.

[0036] The powder residue on the inner wall of the mixing cylinder 7 needs to be cleaned. At this time, the electric telescopic rod 5 is started. The electric telescopic rod 5 can drive the rotating sleeve 18 to slide inside the rotating tube 6. The movement of the rotating sleeve 18 will drive the scraper ring 16 to move along the inner wall of the mixing cylinder 7 and scrape off the powder residue on the inner wall.

[0037] The scraper ring 16 moves along the inner wall of the mixing cylinder 7, making it easy to scrape off the residual powder on the inner wall. Since the scraper ring 16 is in close contact with the inner wall of the mixing cylinder 7, it can effectively remove the powder adhering to the inner wall, avoid the accumulation of powder on the inner wall of the mixing cylinder 7, and thus clean the residual powder on the inner wall of the mixing cylinder 7 in a timely manner, prevent the powder from clumping, ensure the purity of the material in each mixing operation, and further improve the product quality.

[0038] Structural Description: Support Base 1: Serves as the basic support structure for the entire device. The top is rotatably connected to the rotating frame 2, and the interior is rotatably connected to the electric push rod 8, providing stable support for the device.

[0039] Rotating frame 2: Rotatably connected to the top of the support base 1, supporting the mixing cylinder 7 and enabling it to rotate, while also installing some components of the powder cleaning structure;

[0040] Support frame 3: It is fixedly connected to the side of the rotating frame 2 away from the mixing cylinder 7, and is used to install the electric telescopic rod 5, providing installation support for the electric telescopic rod 5;

[0041] Drive motor 4: It is fixedly installed on the side of the rotating frame 2 away from the mixing cylinder 7, and its output end is connected to the bevel gear 12 to provide power for the rotation of the rotating tube 6;

[0042] Electric telescopic rod 5: It is fixedly installed on the support frame 3, and the telescopic end extends into the interior of the rotating tube 6. It is used to drive the rotating sleeve 18 and the scraper ring 16 to move in the mixing cylinder 7 to clean the powder on the inner wall.

[0043] Rotating tube 6: Rotarily connected inside the mixing cylinder 7, one end is rotatably connected to the fixed frame 20, the other end passes through the rotating frame 2, and the outer surface is fixedly connected to the stirring blade 11 and the toothed ring 15, which is used to drive the stirring blade 11 to rotate and mix the materials, and transmit power through the toothed ring 15.

[0044] Mixing cylinder 7: Rotatably connected between mounting frame 9 and rotating frame 2, it contains lithium manganese oxide powder for mixing, and the outer surface is connected to the feed pipe for mixing and storing materials;

[0045] Electric push rod 8: Rotatably connected inside the support base 1, with its telescopic end rotatably connected to the bottom of the mounting frame 9. Through telescopic movement, it drives the mounting frame 9 and the mixing cylinder 7 to tilt, facilitating material mixing and unloading.

[0046] Mounting bracket 9: Rotatably connected to the top of the support base 1, and internally rotatably connected to the mixing cylinder 7, which is tilted by the electric push rod 8;

[0047] Internal gear ring 10: It is fixedly connected to the side of the mixing cylinder 7 near the rotating frame 2, located inside the rotating frame 2, and meshes with the gear 14 to transmit power to make the mixing cylinder 7 rotate;

[0048] Stirring blade 11: It is fixedly connected to the outer surface of the rotating tube 6 and rotates with the rotating tube 6 to stir and mix the lithium manganese oxide powder in the mixing cylinder 7;

[0049] Bevel gear 12: It is fixedly connected to the output end of the drive motor 4 and meshes with the bevel gear ring 13 to transmit the power of the drive motor 4 to the rotating tube 6;

[0050] Bevel ring 13: It is fixedly sleeved on the outer surface of the rotating tube 6 and meshes with the bevel gear 12. Under the drive of the bevel gear 12, it drives the rotating tube 6 to rotate.

[0051] Gear 14: Rotatably connected inside the rotating frame 2, meshing with the internal gear ring 10 and gear ring 15, used to transmit power to make the mixing cylinder 7 and the rotating tube 6 rotate in opposite directions;

[0052] Gear ring 15: It is fixedly sleeved on the outer surface of the rotating tube 6, located inside the rotating frame 2, meshing with the gear 14, and transmitting power to make the mixing cylinder 7 rotate;

[0053] Scraper ring 16: It is fixedly connected to the outer surface of the rotating sleeve 18, and its exterior is in contact with the inner wall of the mixing cylinder 7. Its cross-section is triangular. It moves along the inner wall of the mixing cylinder 7 under the drive of the rotating sleeve 18 to scrape off the residual powder.

[0054] Limiting groove 17: Three grooves are formed on the outer surface of the rotating tube 6. They are used for the support rod of the scraper ring 16 to pass through and play a limiting and guiding role in the movement of the scraper ring 16.

[0055] Rotating sleeve 18: Rotating sleeve is connected to the telescopic end of the electric telescopic rod 5 and fixedly connected to the scraper ring 16. Under the drive of the electric telescopic rod 5, it drives the scraper ring 16 to move.

[0056] Sealing cap 19: Threaded connection on the side of mixing cylinder 7 away from rotating frame 2, used to seal mixing cylinder 7 and prevent material leakage;

[0057] Fixed frame 20: It is fixedly connected inside the mixing cylinder 7 and rotatably connected to one end of the rotating tube 6 to provide support for the rotating tube 6.

[0058] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A lithium manganate dry method uniform mixing device, characterized by, include: Electric push rod (8), support base (1) and mounting frame (9), the top of the support base (1) is rotatably connected to the rotating frame (2), the electric push rod (8) is rotatably connected inside the support base (1), the telescopic end of the electric push rod (8) is rotatably connected to the bottom of the mounting frame (9), the inside of the mounting frame (9) is rotatably connected to the mixing cylinder (7), one end of the mixing cylinder (7) is rotatably connected to the rotating frame (2); The powder cleaning structure is located on the rotating frame (2); The powder cleaning structure includes a rotating tube (6), a fixed frame (20), a support frame (3) and an electric telescopic rod (5). The fixed frame (20) is fixedly connected to the inside of the mixing cylinder (7), and the rotating tube (6) is rotatably connected to the inside of the mixing cylinder (7). One end of the rotating tube (6) is rotatably connected to the inside of the fixed frame (20). Among them, the end of the rotating tube (6) away from the fixed frame (20) rotates through the rotating frame (2), the support frame (3) is fixedly connected to the side of the rotating frame (2) away from the mixing cylinder (7), the electric telescopic rod (5) is fixedly installed on the side of the support frame (3) away from the rotating frame (2), and the telescopic end of the electric telescopic rod (5) slides into the interior of the rotating tube (6).

2. The lithium manganate dry homogenizing device according to claim 1, characterized in that: The powder cleaning structure also includes a rotating sleeve (18) and a scraper ring (16). Three limiting grooves (17) are provided on the outer surface of the rotating tube (6). The rotating sleeve (18) is rotatably connected to the telescopic end of the electric telescopic rod (5). Among them, the scraper ring (16) is fixedly connected to the outer surface of the rotating sleeve (18), the outside of the scraper ring (16) is in close contact with the inner wall of the mixing cylinder (7), the three support rods on the scraper ring (16) all pass through the corresponding limiting groove (17), and the cross section of the scraper ring (16) is a triangular structure.

3. The lithium manganate dry homogenizing device according to claim 1, characterized in that: Multiple stirring blades (11) are fixedly connected to the outer surface of the rotating tube (6).

4. The lithium manganate dry homogenizing device according to claim 1, characterized in that: A drive motor (4) is fixedly installed on the side of the rotating frame (2) away from the mixing cylinder (7). A bevel gear (12) is fixedly connected to the output end of the drive motor (4). A bevel ring (13) is fixedly sleeved on the outer surface of the rotating tube (6). The bevel ring (13) contacts the side of the rotating frame (2) away from the mixing cylinder (7). The bevel gear (12) and the bevel ring (13) are meshed together.

5. The lithium manganate dry homogenizing device according to claim 1, characterized in that: The rotating frame (2) has two gears (14) rotatably connected inside. The mixing cylinder (7) is fixedly connected to an internal gear ring (10) on the side near the rotating frame (2). The internal gear ring (10) is located inside the rotating frame (2). Both gears (14) are meshed with the internal gear ring (10). Among them, a toothed ring (15) is fixedly sleeved on the outer surface of the rotating tube (6). The toothed ring (15) is located inside the rotating frame (2), and both gears (14) are meshed with the toothed ring (15).

6. The lithium manganate dry homogenizing device of claim 1, wherein: The mixing cylinder (7) is threadedly connected to a sealing cap (19) on the side away from the rotating frame (2). A feed pipe communicating with the inside of the mixing cylinder (7) is fixedly connected to the outer surface of the mixing cylinder (7), and a sealing cover is threadedly fitted on the feed pipe.

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