Centrifugal machine for lithium carbonate slurry

Abstract

The utility model discloses a centrifugal machine for lithium carbonate slurry, and relates to the technical field of slurry centrifugation. A fixed base body and a collecting box are arranged on the bottom plate, a cover plate is connected to the top of the fixed base body, and a plurality of guide mechanisms are connected to the two sides of the fixed base body. When the rotary drum is operated, solid particles (lithium carbonate) in slurry can move towards the outer wall of the rotary drum due to the strong centrifugal force of the rotary drum, light liquid (such as water and impurities) is left in the center of the rotary drum, the solid particles are deposited on the inner wall of the rotary drum to form a layer of sediment, and the liquid is accumulated at the bottom of the rotary drum and flows into the liquid collecting box through the through holes. The liquid collecting box collects liquid discharged from the bottom of the rotary drum, the liquid is guided into the external collecting box through the flow guide pipe, the design ensures that the liquid separated from the rotary drum can be effectively separated from solid sediment, the liquid is prevented from being mixed with solid, and therefore the separation efficiency and the product quality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of slurry centrifugation, in particular to a centrifuge for lithium carbonate slurry. Background Art

[0002] Lithium carbonate slurry centrifuge is mainly used in industrial production, especially in the field of lithium battery manufacturing, for purification and separation of lithium carbonate. Lithium carbonate is a key raw material widely used in the production of lithium-ion batteries. In the process of extracting and processing lithium carbonate, a slurry containing solid lithium carbonate particles and liquid is usually produced. This slurry needs to be separated and purified to obtain high-purity lithium carbonate, which is then used in battery manufacturing. The centrifugal force generated by high-speed rotation separates the heavier solid particles (lithium carbonate) from the lighter liquid components (usually water and other dissolved substances that may be contained). The lithium carbonate slurry centrifuge is a key equipment for achieving efficient and high-purity separation of lithium carbonate, which is of great significance for ensuring the quality and performance of lithium battery materials.

[0003] The Chinese patent authorization announcement number is CN218078429U, and the name is a centrifuge with stable operation, including a centrifuge base, a floating cover plate, a fixed plate, a cover plate lifting drive device and a guide wheel. The top array of the centrifuge base is provided with an upwardly extending guide column, the fixed plate is arranged on the top of the guide column, and the floating cover plate can be lifted and lowered between the bottom of the fixed plate and the top of the centrifuge base. The centrifuge with stable operation described in the utility model is specially designed with a guide wheel, which can make the guide wheel roll in contact with the inner wall of the drum as the floating cover plate descends, limiting the radial shaking of the drum, thereby improving the operation stability of the drum;

[0004] The shortcomings of the above scheme are: although the above scheme can improve the operating stability of the drum, it cannot collect liquid during operation. The liquid may accumulate inside the centrifuge, which may cause corrosion or damage to the equipment in the long run. In addition, during the centrifugation process, solid particles may be deposited on the inner wall of the drum. There is no scraping device in the above scheme. These solids may not be completely collected, resulting in a technical problem of reduced separation efficiency. Utility Model Content

[0005] The utility model aims to provide a centrifuge for lithium carbonate slurry to solve the technical problems in the prior art that liquid cannot be collected during operation, which may cause corrosion or damage to the equipment in the long run, and solid particles may be deposited on the inner wall of the drum during the centrifugation process. There is no scraping device in the above scheme, and these solids may not be completely collected, resulting in reduced separation efficiency.

[0006] The technical problem to be solved by the utility model can be achieved through the following technical solutions:

[0007] A centrifuge for lithium carbonate slurry, comprising a bottom plate;

[0008] A fixed base and a collecting box are provided on the bottom plate, a cover plate is connected to the top of the fixed base, multiple guide mechanisms are connected to both sides of the fixed base, the multiple guide mechanisms are symmetrically arranged, an inner box is connected between the guide mechanisms on both sides, a top cover 2 is connected to the top of the inner box, a rotating drum is connected inside the inner box, a through hole is opened at the bottom of the rotating drum, and a top cover 1 is connected to the top of the rotating drum;

[0009] The bottom of the inner box is connected to a liquid collecting box, a driving mechanism is connected between the rotating drum and the cover plate, the driving mechanism includes a motor 1 and a connecting shaft, a fixing frame is connected to the cover plate, the motor 1 is connected to the fixing frame, the motor 1 is connected to the connecting shaft, a through hole is provided on the cover plate, the connecting shaft is inserted into the through hole, and one end of the connecting shaft away from the motor 1 is connected to the top cover 2;

[0010] A scraping mechanism is detachably connected inside the rotating drum; and an adjusting mechanism is arranged on the scraping mechanism.

[0011] As a further solution of the utility model: the guide mechanism includes a plurality of fixing seats, the plurality of fixing seats are all connected to a fixing base, and the plurality of fixing seats are all connected to guide wheels.

[0012] As a further solution of the utility model: the liquid collecting box is connected with a guide pipe, and one end of the guide pipe away from the liquid collecting box is connected with a collection box.

[0013] As a further solution of the utility model: the scraping mechanism includes a rotating plate, the top cover is connected to motor 2, the driving end of motor 2 is connected to a rotating shaft, the end of the rotating shaft away from motor 2 is connected to a connecting plate, the connecting plate is provided with a plug hole, one side of the connecting plate is connected to a mounting plate, and the rotating plate is connected to the end of the mounting plate away from the connecting plate.

[0014] As a further solution of the utility model: the rotating plate is arranged close to the inner wall of the drum.

[0015] As a further solution of the utility model: the adjustment mechanism includes a plug-in rod and a cap, the plug-in rod is provided with multiple, the multiple plug-in rods are equidistantly connected to the mounting plate, the plug-in rod is plugged into the connecting plate through the plug-in hole, and the cap is rotatably connected to the plug-in rod.

[0016] Beneficial effects of the utility model:

[0017] 1. When the utility model is in operation, the strong centrifugal force of the drum will cause the solid particles (lithium carbonate) in the slurry to move to the outer wall of the drum, while the lighter liquid (such as water and impurities) will remain in the central part of the drum. The solid particles will be deposited on the inner wall of the drum to form a layer of sediment, and the liquid will accumulate at the bottom of the drum and flow into the liquid collecting box through the through hole. The liquid collecting box will collect the liquid discharged from the bottom of the drum and guide it to the external collection box through the guide pipe. This design ensures that the liquid separated in the drum can be effectively separated from the solid sediment, preventing the liquid from mixing with the solid, thereby improving the separation efficiency and product quality.

[0018] 2. In the utility model, during or after the centrifugation process, the scraping mechanism is used to scrape off the solid sediment deposited on the inner wall of the drum. The second motor drives the rotating plate through the rotating shaft. The rotating plate is set close to the inner wall of the drum to scrape off the sediment. The adjustment mechanism is used to adjust the position of the scraping mechanism. The position of the rotating plate can be adjusted by plugging different plug-in rods into the connecting plate, so that the scraping mechanism can be adapted to drums of different models. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the utility model after the rotary drum is installed with the scraping mechanism;

[0022] Figure 3 yes Figure 2 Enlarged structural diagram at A in the middle.

[0023] In the figure: 1. bottom plate; 2. fixed base; 3. inner box body; 4. fixed seat; 5. guide wheel; 6. liquid collecting box; 7. rotating drum; 8. top cover 1; 9. top cover 2; 10. connecting shaft; 11. motor 1; 12. fixed frame; 13. guide pipe; 14. collecting box; 15. mounting plate; 16. rotating plate; 17. plug-in rod; 18. cover cap; 19. motor 2; 20. rotating shaft; 21. connecting plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1-Figure 3As shown, a centrifuge for lithium carbonate slurry comprises a bottom plate 1, a fixed base 2 and a collecting box 14 are arranged on the bottom plate 1, a cover plate is connected to the top of the fixed base 2, a plurality of guide mechanisms are connected to both sides of the fixed base 2, the plurality of guide mechanisms are symmetrically arranged, the guide mechanisms comprise a plurality of fixed seats 4, the plurality of fixed seats 4 are all connected to the fixed base 2, the plurality of fixed seats 4 are all connected to guide wheels 5, an inner box 3 is connected between the guide mechanisms on both sides, a top cover 9 is connected to the top of the inner box 3, a rotating drum 7 is connected inside the inner box 3, a through hole is opened at the bottom of the rotating drum 7, and a top cover 8 is connected to the top of the rotating drum 7;

[0026] The bottom of the inner box body 3 is connected to a liquid collecting box 6, and a guide tube 13 is connected to the liquid collecting box 6. The end of the guide tube 13 away from the liquid collecting box 6 is connected to a collecting box 14. A driving mechanism is connected between the drum 7 and the cover plate, and the driving mechanism includes a motor 11 and a connecting shaft 10. A fixing frame 12 is connected to the cover plate, and the motor 11 is connected to the fixing frame 12. The motor 11 is connected to the connecting shaft 10. A through hole is provided on the cover plate, and the connecting shaft 10 is inserted into the through hole. The end of the connecting shaft 10 away from the motor 11 is connected to the top cover 2 9;

[0027] The inside of the rotating drum 7 is detachably connected with a scraping mechanism, which includes a rotating plate 16, a motor 19 is connected to the top cover 8, a rotating shaft 20 is connected to the driving end of the motor 19, a connecting plate 21 is connected to the end of the rotating shaft 20 away from the motor 19, a plug hole is provided on the connecting plate 21, a mounting plate 15 is connected to one side of the connecting plate 21, the rotating plate 16 is connected to the end of the mounting plate 15 away from the connecting plate 21, and the rotating plate 16 is arranged close to the inner wall of the rotating drum 7;

[0028] The scraping mechanism is provided with an adjustment mechanism, which includes a plug rod 17 and a cap 18. There are multiple plug rods 17, and the multiple plug rods 17 are equidistantly connected to the mounting plate 15. The plug rod 17 is plugged into the connecting plate 21 through the plug hole, and the cap 18 is rotatably connected to the plug rod 17.

[0029] Working principle of the utility model: The working principle of the centrifuge for lithium carbonate slurry involves the coordinated work of multiple components to achieve an efficient separation process. First, the slurry containing lithium carbonate is loaded into the drum 7. The drum 7 is designed to accommodate the slurry and realize the separation of solid and liquid during rotation. The driving mechanism is used to drive the drum 7 to rotate. The motor 11 transmits power to the top cover 2 9 of the drum 7 through the connecting shaft 10, thereby driving the inner box 3 to rotate. When the inner box 3 rotates, the guide wheel 5 rotates accordingly. The strong centrifugal force of the drum 7 causes the solid particles (lithium carbonate) in the slurry to move toward the outer wall of the drum 7, while the lighter liquid (such as water and impurities) remains in the central part of the drum 7. The solid particles are deposited on the inner wall of the drum 7 to form a layer of sediment, and the liquid accumulates at the bottom of the drum 7 and flows into the liquid collecting box 6 through the through hole. The liquid collecting box 6 collects the liquid discharged from the bottom of the drum 7 and guides it to the external collection box 14 through the guide pipe 13.

[0030] During or after the centrifugation, the scraping mechanism is used to scrape off the solid sediment deposited on the inner wall of the drum 7. The motor 19 drives the rotating plate 16 through the rotating shaft 20. The rotating plate 16 is arranged close to the inner wall of the drum 7 to scrape off the sediment. The adjustment mechanism is used to adjust the position of the scraping mechanism. By plugging different plug-in rods 17 into the connecting plate 21, the position of the rotating plate 16 can be adjusted, so that the scraping mechanism can be adapted to drums 7 of different models.

[0031] Through this series of steps, the lithium carbonate slurry is effectively separated in the centrifuge, the solid lithium carbonate is collected, and the liquid is discharged. The design of this centrifuge takes into account the convenience of operation and separation efficiency, and is suitable for industrial-scale lithium carbonate production processes.

[0032] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A centrifuge for lithium carbonate slurry, comprising a bottom plate (1); characterized in that: A fixed base (2) and a collecting box (14) are provided on the bottom plate (1), a cover plate is connected to the top of the fixed base (2), a plurality of guide mechanisms are connected to both sides of the fixed base (2), the plurality of guide mechanisms are symmetrically arranged, an inner box (3) is connected between the guide mechanisms on both sides, a second top cover (9) is connected to the top of the inner box (3), a rotating drum (7) is connected inside the inner box (3), a through hole is opened at the bottom of the rotating drum (7), and a first top cover (8) is connected to the top of the rotating drum (7); The bottom of the inner box (3) is connected to a liquid collecting box (6); a driving mechanism is connected between the rotating drum (7) and the cover plate, the driving mechanism comprising a motor 1 (11) and a connecting shaft (10); a fixing frame (12) is connected to the cover plate, the motor 1 (11) is connected to the fixing frame (12), the motor 1 (11) is connected to the connecting shaft (10), a through hole is provided on the cover plate, the connecting shaft (10) is inserted into the through hole, and the end of the connecting shaft (10) away from the motor 1 (11) is connected to the top cover 2 (9); A scraping mechanism is detachably connected inside the rotating drum (7); and an adjusting mechanism is provided on the scraping mechanism.

2. A centrifuge for lithium carbonate slurry according to claim 1, characterized in that: The guide mechanism comprises a plurality of fixing seats (4), the plurality of fixing seats (4) are all connected to a fixing base (2), and the plurality of fixing seats (4) are all connected to a guide wheel (5).

3. A centrifuge for lithium carbonate slurry according to claim 1, characterized in that: The liquid collecting box (6) is connected to a flow guide pipe (13), and one end of the flow guide pipe (13) away from the liquid collecting box (6) is connected to a collection box (14).

4. A centrifuge for lithium carbonate slurry according to claim 1, characterized in that: The scraping mechanism comprises a rotating plate (16), the top cover (8) is connected to a second motor (19), the driving end of the second motor (19) is connected to a rotating shaft (20), the end of the rotating shaft (20) away from the second motor (19) is connected to a connecting plate (21), a plug hole is provided on the connecting plate (21), one side of the connecting plate (21) is connected to a mounting plate (15), and the rotating plate (16) is connected to an end of the mounting plate (15) away from the connecting plate (21).

5. A centrifuge for lithium carbonate slurry according to claim 4, characterized in that: The rotating plate (16) is arranged in close contact with the inner wall of the rotating drum (7).

6. A centrifuge for lithium carbonate slurry according to claim 1, characterized in that: The adjustment mechanism comprises a plug-in rod (17) and a cover cap (18); a plurality of the plug-in rods (17) are provided, and the plurality of the plug-in rods (17) are equidistantly connected to a mounting plate (15); the plug-in rod (17) is plugged into a connecting plate (21) through a plug-in hole; and the cover cap (18) is rotatably connected to the plug-in rod (17).

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