Lepidolite pre-roasting device
The lithium mica pre-calcination device, with its dual-drive components and anti-clogging design, solves the problems of insufficient adaptability and low screening efficiency of existing equipment, achieving efficient particle size control and continuous production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI JINZHI NEW ENERGY CO LTD
- Filing Date
- 2025-05-08
- Publication Date
- 2026-05-15
AI Technical Summary
Existing lepidolite pre-calcination equipment has a simple design, making it difficult to adapt to different application scenarios. It lacks an effective secondary crushing function, resulting in a wide particle size distribution, which affects product quality consistency and lithium extraction rate. It also has low screening efficiency and is prone to clogging, increasing maintenance costs.
The crushing roller and screening mechanism are driven by a dual-drive component to achieve secondary crushing and anti-clogging design. The screen holes are cleaned by a fan-shaped nylon brush to ensure the consistency of material particle size and smooth screening.
It improves the working efficiency and material consistency of the lepidolite pre-calcination device, avoids clogging in the screening process, ensures the continuity and stability of production, and reduces maintenance costs.
Smart Images
Figure CN224236944U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lithium mica processing, and in particular to a lithium mica pre-calcination device. Background Technology
[0002] As a key lithium resource, the pretreatment step of lepidolite is crucial for subsequent extraction and processing. However, current pre-calcination equipment for lepidolite has significant design deficiencies. Existing equipment is often designed in a single way, making it difficult to adapt to the needs of different application scenarios, especially for tasks requiring the processing of materials with specific particle sizes. This limits the application range and flexibility of the equipment. Many devices lack effective secondary crushing functions or have insufficient functions, resulting in a wide particle size distribution of the final product, affecting the consistency of product quality, and thus reducing the effective extraction rate and purity of lithium. During the crushing and screening process, especially when processing fine powder or sticky materials, the screen holes are easily blocked by the material, seriously affecting the screening efficiency. This means that frequent shutdowns are required for cleaning, which increases maintenance costs and reduces production efficiency.
[0003] Therefore, a lithium mica pre-calcination device is being developed to address the above problems. Utility Model Content
[0004] To overcome the limitations of existing equipment, which is often designed in a single way and cannot adapt to the needs of different application scenarios, especially for materials requiring specific particle sizes, thus restricting the application range and flexibility of the equipment, many devices lack effective secondary crushing functions or have insufficient functions, resulting in a wide particle size distribution of the final product, affecting the consistency of product quality, and thus reducing the effective extraction rate and purity of lithium. During the crushing and screening process, especially when processing fine powder or sticky materials, the screen holes are easily blocked by materials, which seriously affects the screening efficiency and requires frequent shutdowns for cleaning, which increases maintenance costs and reduces production efficiency. This utility model provides a lithium mica pre-calcination device.
[0005] The technical implementation scheme of this utility model is as follows: a lithium mica pre-calcination device includes a mounting frame, four legs connected to the lower outer side of the mounting frame, a feeding plate connected to the middle inner side of the mounting frame, the feeding plate having an inclined structure, a feeding frame connected to the mounting frame, and a first driving assembly mounted on the upper right side of the mounting frame. The first driving assembly consists of a first driving motor, a first bevel gear, and a second bevel gear. The first driving motor is mounted on the upper right side of the mounting frame, and the first bevel gear is connected to the output shaft of the first driving motor. The output shaft of the first driving motor is rear-facing. A crushing roller is rotatably connected to the inner side of the upper part of the mounting frame. There are two crushing rollers, which are parallel to each other and interact with each other. Each crushing roller is connected to a driven gear at its right end. The right end of the rear crushing roller is connected to a second bevel gear, which meshes with the first bevel gear. The driven gears mesh with each other. The second bevel gear is located to the right of the rear driven gear. The driven gear is rotatably connected to the mounting frame. A side plate is installed on the upper right side of the mounting frame to cover the first drive assembly. A screening mechanism is provided on the mounting frame to screen the crushed material.
[0006] As a further preferred embodiment, the screening mechanism includes a second drive assembly. The second drive assembly is located at the lower part of the mounting frame. The second drive assembly consists of a second drive motor, a third bevel gear, a fourth bevel gear, and a guide shaft. The second drive motor is mounted on the lower front side of the mounting frame. The output shaft of the second drive motor is rear-facing. The guide shaft is connected to the output shaft of the second drive motor and is rotatably connected to the mounting frame. The third bevel gear is connected to the middle of the guide shaft. A first limiting member is connected to the lower inner side of the mounting frame. A connecting column is rotatably connected to the middle of the first limiting member. The lower end is connected to the fourth bevel gear, which meshes with the third bevel gear. The middle of the mounting frame is connected to a second limiting member, and the middle of the second limiting member is rotatably connected to a material distribution member. The material distribution member is connected to the connecting column and has a discharge port. The upper inner side of the feeding plate is connected to a screening plate, and the feeding plate is connected to a first crushing member. The upper part of the connecting column is equipped with a second crushing member, which is in contact with the material distribution member. The second crushing member is located below the material distribution member and is rotatably connected to the second limiting member. The second crushing member interacts with the first crushing member.
[0007] As a further preferred embodiment, an anti-clogging mechanism is also included. The anti-clogging mechanism is provided within the mounting frame and includes a mounting component. The mounting component is installed in the middle of the connecting column and is located inside the screen plate. The mounting component has a fan-shaped structure and a reinforcing plate is connected to the inner side of the mounting component. A nylon brush is connected to the front side of the mounting component for cleaning the screen plate and preventing it from clogging.
[0008] As a further preferred embodiment, the feed frame has a structure that is wider at the top and narrower at the bottom.
[0009] As a further preferred option, the side plate has a detachable connection structure, which facilitates disassembly and maintenance of the internal devices.
[0010] As a further preferred embodiment, the material distribution component has a conical structure.
[0011] Compared with the prior art, the present invention has the following advantages:
[0012] 1. This utility model uses a second drive component to drive the second crushing component to interact with the first crushing component, thereby performing secondary crushing on the remaining large particles, ensuring that all materials can meet the required particle size standard, and improving the working efficiency and material consistency of the entire device.
[0013] 2. This utility model uses a fan-shaped mounting component that allows it to move continuously inside the screen plate, driving the nylon brush to scrape it out, effectively preventing material from clogging the screen holes, maintaining the smoothness of the screening process, and ensuring the continuity and stability of the production line. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0015] Figure 2 This is a schematic diagram of a partial cross-sectional three-dimensional structure of the screening mechanism of this utility model.
[0016] Figure 3 This is a schematic diagram of a second partial cross-sectional three-dimensional structure of the screening mechanism of this utility model.
[0017] Figure 4 This is a partial cross-sectional three-dimensional structural diagram of the anti-clogging mechanism of this utility model.
[0018] The components are: 1. Mounting frame, 11. Feeding plate, 2. Feeding frame, 3. First drive assembly, 4. Drive gear, 5. Crushing roller, 6. Side plate, 7. Screening mechanism, 71. Second drive assembly, 72. Connecting column, 73. First limiting component, 74. Second limiting component, 75. Material distribution component, 76. Screening plate, 77. First crushing component, 78. Second crushing component, 8. Anti-clogging mechanism, 81. Mounting component, 82. Reinforcing plate, 83. Nylon brush. Detailed Implementation
[0019] Although this invention may be described with respect to a particular application or industry, those skilled in the art will recognize its broader applicability. Those skilled in the art will understand that terms such as "above," "below," "upward," "downward," etc., are used to describe the drawings and not to indicate a limitation on the scope of the invention as defined by the appended claims. Any numerical designations such as "first" or "second" are merely illustrative and not intended to limit the scope of the invention in any way.
[0020] A lithium mica pre-calcination apparatus, such as Figures 1-4As shown, the system includes a mounting frame 1, with four legs connected to the lower outer side of the mounting frame 1. A feed plate 11 with a sloping structure is connected to the inner side of the middle of the mounting frame 1. A feed frame 2 with a wider top and narrower bottom structure is connected to the mounting frame 1. A first drive assembly 3 is mounted on the upper right side of the mounting frame 1. The first drive assembly 3 consists of a first drive motor, a first bevel gear, and a second bevel gear. The first drive motor is mounted on the upper right side of the mounting frame 1, and the first bevel gear is connected to the output shaft of the first drive motor. The output shaft of the first drive motor is oriented rearward. Two crushing rollers 5 are rotatably connected to the inner upper side of the mounting frame 1. The crushing rollers 5 are parallel to each other and interact with each other. Each crushing roller 5 has a follower gear connected to its right end. The right end of the rear crushing roller 5 is connected to the wheel 4 and the first bevel gear. The second bevel gear meshes with the first bevel gear and the driven gear 4 meshes with each other. The second bevel gear is located to the right of the rear driven gear 4. The driven gear 4 is rotatably connected to the mounting frame 1. A side plate 6 is installed on the upper right side of the mounting frame 1 to cover the first drive assembly 3. The side plate 6 has a detachable connection structure for easy removal and maintenance of the internal device. The mounting frame 1 is equipped with a screening mechanism 7 for screening the crushed material. The screening mechanism 7 includes a second drive assembly 71. The second drive assembly 71 is located in the lower part of the mounting frame 1. The second drive assembly 71 consists of a second drive motor, a third bevel gear, a fourth bevel gear, and a guide shaft. The second drive motor is installed on the lower front side of the mounting frame 1. The second drive motor has a rear-facing output shaft. A guide shaft is connected to the output shaft of the second drive motor, and the guide shaft is rotatably connected to the mounting frame 1. A third bevel gear is connected to the middle of the guide shaft. A first limiting member 73 is connected to the lower inner side of the mounting frame 1. A connecting column 72 is rotatably connected to the middle of the first limiting member 73. A fourth bevel gear is connected to the lower end of the connecting column 72. The fourth bevel gear meshes with the third bevel gear. A second limiting member 74 is connected to the middle of the mounting frame 1. A material distribution member 75 is rotatably connected to the middle of the second limiting member 74. The material distribution member 75 is connected to the connecting column 72. The material distribution member 75 has a conical structure and a discharge port. A screening plate 76 is connected to the upper inner side of the feeding plate 11. The system includes a first crushing component 77, a second crushing component 78 mounted on the upper part of the connecting column 72, the second crushing component 78 being in contact with the material distribution component 75, the second crushing component 78 being located below the material distribution component 75, the second crushing component 78 being rotatably connected to the second limiting component 74, the second crushing component 78 interacting with the first crushing component 77, and also includes an anti-blocking mechanism 8, which is provided inside the mounting frame 1. The anti-blocking mechanism 8 includes a mounting component 81, which is mounted in the middle of the connecting column 72, located inside the screen plate 76, and has a fan-shaped structure. A reinforcing plate 82 is connected to the inner side of the mounting component 81, and a nylon brush 83 is connected to the front side of the mounting component 81 for cleaning the screen plate 76 and preventing it from clogging.
[0021] It should be noted that this device can be used for pre-baking of lepidolite. First, place the device in the desired position, then start the first drive motor. Its output shaft drives the first bevel gear to rotate, and the second bevel gear meshing with it drives the rear crushing roller 5 to rotate. At the same time, the driven gear 4 of the rear crushing roller 5 meshes with the driven gear 4 of the front crushing roller 5, causing the two crushing rollers 5 to rotate in opposite directions, forming a shearing and squeezing action. Then, the lepidolite raw material is fed from the feed frame 2 and falls between the two parallel crushing rollers 5. The surface of the crushing rollers 5 is provided with wear-resistant serrations so that the raw material can be crushed. The crushed material falls freely onto the feed plate 11 and the distribution piece 75 below, synchronously driving the second drive motor to drive the guide shaft and the third bevel gear to rotate. Through the meshing fourth bevel gear, the connecting column 72 is driven to rotate. The connecting column 72 drives the material distribution component 75 to rotate, and the discharge port on it allows small particles to fall directly, while large particles are guided to the feed plate 11. The feed plate 11 adopts an inclined structure, allowing the material to slide naturally to the bottom. The second crushing component 78 on the connecting column 72 interacts with the fixed first crushing component 77 to perform secondary crushing on the remaining large particles, ensuring that all materials reach the qualified particle size. The crushed material enters the screen plate 76. Particles that meet the requirements fall through the screen holes, while those that do not meet the requirements continue to be crushed. Since the crushed material can easily cause blockage of the screen frame, the fan-shaped mounting component 81 drives the nylon brush 83 to continuously scrape the inner wall of the screen plate 76 to prevent the screen holes from being blocked by fine powder or sticky materials. The side plate 6 is fixed with bolts, which facilitates quick disassembly and allows for quick maintenance of the parts of the first drive component 3.
[0022] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of the present invention and should not be construed as limiting the scope of protection of the present invention in any way. Based on this explanation, those skilled in the art can conceive of other specific embodiments of the present invention without creative effort, and these embodiments will all fall within the scope of protection of the present invention.
Claims
1. A lithium mica pre-calcination apparatus, characterized in that: The system includes a mounting frame (1), with four legs connected to the lower outer side of the mounting frame (1). A feeding plate (11) with a sloping structure is connected to the inner side of the middle part of the mounting frame (1). A feeding frame (2) is connected to the mounting frame (1). A first drive assembly (3) is mounted on the upper right part of the mounting frame (1). The first drive assembly (3) consists of a first drive motor, a first bevel gear, and a second bevel gear. The first drive motor is mounted on the upper right part of the mounting frame (1). The first bevel gear is connected to the output shaft of the first drive motor. The output shaft of the first drive motor is arranged in a rearward orientation. A crushing roller (5) is rotatably connected to the inner upper part of the mounting frame (1). There are two crushing rollers (5), which are parallel to each other and interact with each other. Each crushing roller (5) is connected to a driven gear (4) at its right end. The right end of the rear crushing roller (5) is connected to a second bevel gear, which meshes with the first bevel gear. The driven gears (4) mesh with each other. The second bevel gear is located to the right of the rear driven gear (4). The driven gear (4) is rotatably connected to the mounting frame (1). A side plate (6) is installed on the upper right side of the mounting frame (1) to cover the first drive assembly (3). A screening mechanism (7) is provided on the mounting frame (1) to screen the crushed material.
2. The lithium mica pre-calcination apparatus as described in claim 1, characterized in that: The screening mechanism (7) includes a second drive assembly (71). The second drive assembly (71) is located in the lower part of the mounting frame (1). The second drive assembly (71) consists of a second drive motor, a third bevel gear, a fourth bevel gear, and a guide shaft. The second drive motor is mounted on the lower front side of the mounting frame (1). The output shaft of the second drive motor is rear-facing. The guide shaft is connected to the output shaft of the second drive motor. The guide shaft is rotatably connected to the mounting frame (1). The third bevel gear is connected to the middle of the guide shaft. A first limiting member (73) is connected to the lower inner side of the mounting frame (1). A connecting column (72) is rotatably connected to the middle of the first limiting member (73). The lower end of the connecting column (72) is connected to the fourth bevel gear. The fourth bevel gear and the third bevel gear are connected to the fourth bevel gear. The gears mesh with each other. A second limiting member (74) is connected to the middle of the mounting frame (1). A material distribution member (75) is rotatably connected to the middle of the second limiting member (74). The material distribution member (75) is connected to the connecting column (72). A discharge port is opened on the material distribution member (75). A screen plate (76) is connected to the upper side of the inner side of the feeding plate (11). A first crushing member (77) is connected to the feeding plate (11). A second crushing member (78) is installed on the upper part of the connecting column (72). The second crushing member (78) is in contact with the material distribution member (75). The second crushing member (78) is located below the material distribution member (75). The second crushing member (78) is rotatably connected to the second limiting member (74). The second crushing member (78) interacts with the first crushing member (77).
3. The lithium mica pre-calcination apparatus as described in claim 2, characterized in that: It also includes an anti-clogging mechanism (8), which is provided in the mounting frame (1). The anti-clogging mechanism (8) includes a mounting component (81), which is installed in the middle of the connecting column (72). The mounting component (81) is located inside the screen plate (76). The mounting component (81) has a fan-shaped structure. A reinforcing plate (82) is connected to the inner side of the mounting component (81). A nylon brush (83) is connected to the front side of the mounting component (81) for cleaning the screen plate (76) and preventing it from clogging.
4. The lithium mica pre-calcination apparatus as described in claim 1, characterized in that: The feed frame (2) has a structure that is wider at the top and narrower at the bottom.
5. The lithium mica pre-calcination apparatus as described in claim 1, characterized in that: The side plate (6) is a detachable connection structure, which facilitates the removal and maintenance of the internal devices.
6. The lithium mica pre-calcination apparatus as described in claim 2, characterized in that: The material distribution component (75) has a conical structure.