A lithium carbonate mixing device

Abstract

The utility model relates to the mixing technology field, concretely relates to a lithium carbonate mixing device, including the mixing cabin, the mixing cabin is arranged as vertical cylindrical cavity, a plurality of feed hoppers are fixedly arranged to the mixing cabin upper end, the mixing cabin upper end is fixedly arranged with the rotating electrical machines, the mixing cabin lower fixedly arranged has the discharge gate, the rotating electrical machines output fixedly connected with the rotating shaft, the rotating shaft penetrates to the mixing cabin inside, the rotating shaft outside fixedly arranged with the shunt disc, cross shear pulp, the stirring head, the mixing cabin inner wall fixedly arranged with a plurality of inclined flow guide rings, the utility model discloses the inclined flow guide ring that gradually becomes shorter inside through setting in the shunt disc below, and the flow guide ring inside connects the annular leaky net, and sets up the cross shear pulp of cross shape and the edge with sharp shear blade in the mixing cabin inside, effectively breaks up lithium carbonate aggregate, and enhances mixing uniformity effect.

Description

Technical Field

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

[0002] With the rapid development of new energy vehicles and energy storage industries, the production precision requirements for lithium battery cathode materials are continuously increasing. Among them, the uniformity of mixing lithium carbonate with various auxiliary materials directly affects the electrochemical performance of the electrode sheet.

[0003] Traditional equipment typically uses a single propeller or blade for its mixing structure. When a single propeller rotates, the shearing direction is fixed, making it difficult to create omnidirectional convection. Furthermore, traditional equipment lacks a dedicated structure for intercepting and breaking up agglomerates. Relying on the impact of a single mixing blade, it is difficult to fully break up lithium carbonate agglomerates with high hardness.

[0004] Therefore, a lithium carbonate mixing device is proposed to solve the problems mentioned above. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a lithium carbonate mixing device that can solve the problems of uneven mixing and insufficient crushing.

[0006] To achieve the above objectives, this utility model provides the following technical solution: It includes a mixing chamber, which is configured as a vertical cylindrical cavity. Several feed hoppers are fixedly installed at the upper end of the mixing chamber. A rotary motor is fixedly installed at the upper end of the mixing chamber. A discharge port is fixedly installed at the lower end of the mixing chamber. A rotating shaft is fixedly connected to the output end of the rotary motor. The rotating shaft extends through the interior of the mixing chamber. A flow divider, a cross-shaped shearing impeller, and a stirring head are fixedly installed on the outer side of the rotating shaft. Several inclined guide rings are fixedly installed on the inner wall of the mixing chamber.

[0007] Preferably, the feed hopper is configured as a funnel structure that is wider at the top and narrower at the bottom, the interior of the feed hopper is connected to the interior of the mixing chamber, the feed hoppers are distributed in a ring on the upper surface of the mixing chamber, and the rotary motor is disposed among several feed hoppers.

[0008] Preferably, the discharge port is configured as a hollow frustum structure, and the discharge port connects the interior of the mixing chamber with the external space.

[0009] Preferably, the diversion plate is located inside the mixing chamber near the top, and a plurality of arc-shaped guide grooves are formed through the upper surface of the diversion plate, the arc-shaped guide grooves being distributed in a ring on the upper surface of the diversion plate.

[0010] Preferably, the inclined guide ring is disposed below the flow divider, and the inclined guide ring is configured as an inclined circular ring structure that gradually decreases in height on the inner side, and an annular mesh is fixedly connected to the inner side of the inclined guide ring.

[0011] Preferably, the cross-shaped shearing blade is disposed inside the mixing chamber, and is sequentially disposed below the diverter plate and the inclined guide ring. The cross-shaped shearing blade is configured in a cross shape, and the edge of the cross-shaped shearing blade is provided with a sharp shearing blade.

[0012] Preferably, the stirring head is disposed inside the discharge port, the stirring head is configured as a conical structure, and a cleaning cotton is fixedly disposed on the outside of the stirring head, the cleaning cotton being in contact with the inclined inner wall of the discharge port.

[0013] Compared with the prior art, the present invention provides a lithium carbonate mixing device, which has the following beneficial effects:

[0014] 1. This utility model provides an inclined guide ring with a gradually decreasing inner height below the distribution plate, and an annular mesh is connected to the inner side of the guide ring to guide the material to gather towards the center of the mixing chamber. The annular mesh intercepts the undispersed agglomerated material, allowing qualified material to continue to fall, thereby improving the uniformity of subsequent mixing.

[0015] 2. This utility model sets up a cross-shaped shearing blade with sharp shearing edges inside the mixing chamber, and places it in sequence below the diversion plate and the inclined guide ring, so that it can generate strong shearing force on the falling material from all directions when rotating, effectively breaking up lithium carbonate aggregates and enhancing the mixing effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the lithium carbonate mixing device proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the mixing chamber of the lithium carbonate mixing device proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the discharge port of the lithium carbonate mixing device proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of the inclined guide ring structure of the lithium carbonate mixing device proposed in this utility model.

[0020] In the diagram: 1. Mixing chamber; 2. Feed hopper; 3. Rotary motor; 4. Rotary shaft; 5. Diverter plate; 6. Cross shearing blade; 7. Inclined guide ring; 8. Stirring head; 9. Cleaning cotton; 10. Discharge port; 11. Arc-shaped guide groove; 12. Annular strainer. Detailed Implementation

[0021] 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.

[0022] Example:

[0023] Please see Figure 1 - Figure 4 The lithium carbonate mixing device in this embodiment includes a mixing chamber 1, which is configured as a vertical cylindrical cavity. Several feed hoppers 2 are fixedly installed at the upper end of the mixing chamber 1. A rotary motor 3 is fixedly installed at the upper end of the mixing chamber 1. An outlet 10 is fixedly installed at the lower end of the mixing chamber 1. A rotary shaft 4 is fixedly connected to the output end of the rotary motor 3. The rotary shaft 4 extends through the interior of the mixing chamber 1. A flow divider 5, a cross shearing blade 6, and a stirring head 8 are fixedly installed on the outer side of the rotary shaft 4. Several inclined guide rings 7 are fixedly installed on the inner wall of the mixing chamber 1.

[0024] When preparing to mix lithium carbonate materials, different materials enter the mixing chamber 1 from different feed hoppers 2 according to the proportion. The rotary motor 3 drives the rotary shaft 4 to rotate, which drives the diversion plate 5, the cross shear blade 6, and the stirring head 8 to operate synchronously to shear and stir the materials. At the same time, the materials move sequentially to the bottom of the mixing chamber 1 with the help of the inclined guide ring 7 to achieve the mixing process. Finally, the mixed materials are discharged from the discharge port 10.

[0025] The feed hopper 2 is configured as a funnel structure that is wider at the top and narrower at the bottom. The inside of the feed hopper 2 is connected to the inside of the mixing chamber 1. The feed hoppers 2 are distributed in a ring on the upper surface of the mixing chamber 1. The rotary motor 3 is arranged between several feed hoppers 2.

[0026] When the equipment is running, lithium carbonate raw materials and auxiliary materials can be added simultaneously through different feed hoppers 2. The rotary motor 3 and the rotary shaft 4 are located in the center position to ensure that the rotary shaft 4 is balanced by force and reduce vibration during movement.

[0027] The discharge port 10 is configured as a hollow frustum structure, and the discharge port 10 connects the interior and exterior spaces of the mixing chamber 1.

[0028] After mixing, the material slides down the inclined inner wall of the discharge port 10 under the action of gravity. The frustum structure allows the material to naturally converge and fall, making it easy to discharge and reducing material residue.

[0029] The diversion plate 5 is located inside the mixing chamber 1 near the top. Several arc-shaped guide grooves 11 are opened through the upper surface of the diversion plate 5. The arc-shaped guide grooves 11 are distributed in a ring on the upper surface of the diversion plate 5.

[0030] When the material passes through the feed hopper 2, it first falls onto the surface of the diversion plate 5. The diversion plate 5, which rotates with the rotating shaft 4, diverts the material evenly along the circumferential direction through the arc-shaped guide groove 11, so that the material entering from different feed hoppers 2 completes the initial mixing when it enters, and avoids the local accumulation of material due to concentrated feeding.

[0031] The inclined guide ring 7 is located below the flow divider 5. The inclined guide ring 7 is an inclined circular structure that gradually decreases in height on the inner side. An annular mesh 12 is fixedly connected to the inner side of the inclined guide ring 7.

[0032] When the material falls through the inclined guide ring 7, the inclined structure of the inclined guide ring 7 guides the material to gather towards the center of the mixing chamber 1 and gradually moves to the top of the annular mesh 12. The annular mesh 12 intercepts the undispersed agglomerated material, allowing the qualified material to continue falling through the mesh and improving the uniformity of subsequent mixing.

[0033] The cross-shearing blade 6 is installed inside the mixing chamber 1. The cross-shearing blade 6 is sequentially installed below the flow divider 5 and the inclined guide ring 7. The cross-shearing blade 6 is cross-shaped and has sharp shearing blades on its edges.

[0034] When the rotating shaft 4 drives the cross shearing blade 6 to rotate, the sharp shearing blade can generate a strong shearing effect on the falling material, breaking up the lithium carbonate material aggregate. When the cross-shaped structure of the cross shearing blade 6 rotates, it can form an all-round shearing surface in the mixing chamber 1, and can apply shearing force to the material in different directions at the same time.

[0035] The stirring head 8 is located inside the discharge port 10. The stirring head 8 is a conical structure. A cleaning cotton 9 is fixedly installed on the outside of the stirring head 8. The cleaning cotton 9 is attached to the inclined inner wall of the discharge port 10.

[0036] When the rotating shaft 4 drives the stirring head 8 to rotate, the cleaning cotton 9 rotates along with the stirring head 8 to scrape off the material adhering to the inner wall of the discharge port 10, reducing residue. The conical structure of the stirring head 8, combined with the inclined angle of the inner wall of the discharge port 10, pushes the material towards the outlet of the discharge port 10, preventing the material from accumulating at the top of the discharge port 10. The cleaning cotton 9 is made of an elastic material that does not absorb lithium carbonate powder, such as a dust-free cloth interlayer cotton.

[0037] The working principle of the above embodiment is as follows: Different materials enter from the feed hopper 2, which is distributed in a ring at the top of the mixing chamber 1, in proportion. They first fall onto the diversion plate 5 near the top. The diversion plate 5, which rotates with the rotating shaft 4, diverts the materials evenly along the circumference and mixes them initially through the arc-shaped guide groove 11. When the materials fall through the inclined guide ring 7, its inclined structure guides the materials to gather towards the center of the mixing chamber 1. The inner ring mesh 12 intercepts the undispersed clumps. Qualified materials continue to fall. Subsequently, the cross shearing blade 6 located below rotates with the rotating shaft 4 to shear the materials in all directions and break up the lithium carbonate aggregates. Finally, the materials enter the discharge port 10 at the bottom of the mixing chamber 1. The conical stirring head 8 rotates with the rotating shaft 4. The cleaning cotton 9 on its outer side scrapes off the materials attached to the inner wall of the discharge port 10 and pushes the materials towards the outlet to complete the mixing and discharge.

[0038] The use of the annular mesh 12 is a common existing technology. The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. As long as they can achieve their beneficial effects, they can be implemented. They are common knowledge in the field, so the specific structural composition and working principle will not be described in detail in this embodiment. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A lithium carbonate mixing device, characterized in that: Includes a mixing chamber (1), which is configured as a vertical cylindrical cavity. Several feed hoppers (2) are fixedly installed at the upper end of the mixing chamber (1). A rotary motor (3) is fixedly installed at the upper end of the mixing chamber (1). A discharge port (10) is fixedly installed at the lower end of the mixing chamber (1). A rotating shaft (4) is fixedly connected to the output end of the rotary motor (3). The rotating shaft (4) extends through the interior of the mixing chamber (1). A diverter plate (5), a cross shearing blade (6), and a stirring head (8) are fixedly installed on the outside of the rotating shaft (4). Several inclined guide rings (7) are fixedly installed on the inner wall of the mixing chamber (1).

2. The lithium carbonate mixing device according to claim 1, characterized in that: The feed hopper (2) is configured as a funnel structure that is wider at the top and narrower at the bottom. The inside of the feed hopper (2) is connected to the inside of the mixing chamber (1). The feed hoppers (2) are arranged in a ring on the upper surface of the mixing chamber (1). The rotary motor (3) is arranged between several feed hoppers (2).

3. The lithium carbonate mixing device according to claim 1, characterized in that: The discharge port (10) is configured as a hollow frustum structure, and the discharge port (10) connects the interior and exterior spaces of the mixing chamber (1).

4. The lithium carbonate mixing device according to claim 1, characterized in that: The diversion plate (5) is located inside the mixing chamber (1) near the top. Several arc-shaped guide grooves (11) are opened through the upper surface of the diversion plate (5). The arc-shaped guide grooves (11) are distributed in a ring on the upper surface of the diversion plate (5).

5. The lithium carbonate mixing device according to claim 1, characterized in that: The inclined guide ring (7) is located below the diverter plate (5). The inclined guide ring (7) is a tilted circular structure with the inner side gradually decreasing in height. An annular mesh (12) is fixedly connected to the inner side of the inclined guide ring (7).

6. The lithium carbonate mixing device according to claim 1, characterized in that: The cross-shaped shearing blade (6) is disposed inside the mixing chamber (1). The cross-shaped shearing blade (6) is disposed sequentially below the diverter plate (5) and the inclined guide ring (7). The cross-shaped shearing blade (6) is configured in a cross shape, and the edge of the cross-shaped shearing blade (6) is provided with a sharp shearing blade.

7. The lithium carbonate mixing device according to claim 3, characterized in that: The stirring head (8) is located inside the discharge port (10). The stirring head (8) is a conical structure. A cleaning cotton (9) is fixedly arranged on the outside of the stirring head (8). The cleaning cotton (9) is attached to the inclined inner wall of the discharge port (10).

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