Battery-grade lithium carbonate purification device

Abstract

The utility model discloses a battery-grade lithium carbonate purification device and belongs to the technical field of lithium carbonate production. In order to solve the problem that an existing product is complex in structure, according to the technical scheme, the device comprises a device body, the upper end of the device body is connected with a treatment box through a supporting rod, the device body and the treatment box are further connected through a communicating piece, and a quantifying mechanism is arranged on the communicating piece. According to the quantitative lithium carbonate powder adding device disclosed by the utility model, the quantitative mechanism is arranged, so that lithium carbonate powder can be quantitatively added into water or a solvent for multiple times, the powder can be quickly dissolved in the water or the solvent, and the influence on the dissolving efficiency caused by accumulation of the powder due to addition of a large amount of powder at one time is avoided; lithium carbonate powder can be automatically screened before dissolution, the situation that the dissolution efficiency is affected by powder caking is avoided, finally, a stirring mechanism is arranged, a water solution can be rapidly stirred, the lithium carbonate powder is rapidly dissolved, and the purification efficiency of the device is indirectly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium carbonate production, in particular to a battery-grade lithium carbonate purification device. Background Art

[0002] Lithium carbonate purification processes are primarily divided into two types: wet purification and dry purification. Wet purification is the mainstream method, which involves dissolving lithium carbonate in water or other solvents, followed by precipitation, filtration, and crystallization to remove impurities and improve purity.

[0003] When dissolving lithium carbonate powder, existing lithium carbonate purification equipment generally pours the lithium carbonate powder directly into water or other solvents, and then accelerates its dissolution efficiency by stirring. However, if a large amount of lithium carbonate powder is poured into water or solvent at one time, it will have a certain impact on the stirring efficiency, indirectly reducing the purification efficiency. Secondly, the lithium carbonate powder may clump during storage, and the agglomerated powder will enter water or solvent, and the dissolution efficiency will also slow down.

[0004] Therefore, those skilled in the art provide a battery-grade lithium carbonate purification device to solve the problems raised in the above background technology. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a battery-grade lithium carbonate purification device. By setting a quantitative mechanism, lithium carbonate powder can be added to water or a solvent in a quantitative manner in multiple times, so that the powder can be quickly dissolved in water or a solvent, avoiding the addition of a large amount of powder at one time, which will cause the powder to accumulate and affect the dissolution efficiency. Secondly, by setting a screening mechanism, the lithium carbonate powder can be automatically screened before dissolution to avoid the powder agglomeration affecting the dissolution efficiency. Finally, by setting a stirring mechanism, the water solution can be quickly stirred to make the lithium carbonate powder dissolve quickly, thereby indirectly improving the purification efficiency of the device to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A battery-grade lithium carbonate purification device includes a device body, the upper end of the device body is connected to a processing box via a support rod, the device body and the processing box are also connected by a connecting piece, the connecting piece is provided with a quantitative mechanism, the quantitative mechanism is rotatably connected to a rotating column inside the processing box, the rotating column passes through the outside of the processing box and is fixedly connected to a disc, the disc is fixedly connected to a shift rod, a notch is provided at the edge of the disc, the interior of the connecting piece is rotatably connected to a rotating rod, the rotating rod is provided with a placement groove, one end of the rotating rod is fixedly connected to a connecting column, the connecting column passes through the outside of the connecting piece and is fixedly connected to a limiting block, the limiting block is fixedly connected to a rotating member, and the disc and the outer wall of the limiting block are in full contact.

[0008] As a further solution of the present invention, the quantitative mechanism also includes a driving motor arranged on the side wall of the device body, a first round wheel is fixedly connected to the output shaft of the driving motor, a second round wheel is fixedly connected to the outer wall of the rotating column, the second round wheel is located between the disc and the processing box, and the first round wheel and the second round wheel are connected by a belt.

[0009] As a further solution of the present invention, a screening mechanism is provided inside the processing box, and the screening mechanism includes a filter plate slidably connected to the inside of the processing box, and the rotating column is fixedly connected to a cam, and two cams are provided and symmetrically distributed below the filter plate.

[0010] As a further solution of the present invention, a stirring mechanism is provided inside the device body, and the stirring mechanism includes a reciprocating screw rotatably connected inside the device body. The reciprocating screw is transmission-connected to the movable bar through a threaded sleeve, and the lower end of the movable bar is fixedly connected to a stirring rod.

[0011] As a further solution of the present invention, the reciprocating screw rod passes through the outside of the device body and is connected to the output shaft of the drive motor, and the moving bar contacts the inner wall of the device body.

[0012] As a further solution of the present invention, a feed port is provided at the upper end of the processing box, a discharge port is provided at the side wall of the device body, and a filter is provided on the discharge port.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] By setting up a quantitative mechanism, lithium carbonate powder can be added to water or solvent in a quantitative manner in multiple times, so that the powder can be quickly dissolved in water or solvent, avoiding adding a large amount of powder at one time, which will cause the powder to accumulate and affect the dissolution efficiency. Secondly, by setting up a screening mechanism, the lithium carbonate powder can be automatically screened before dissolution to avoid the powder agglomeration affecting the dissolution efficiency. Finally, by setting up a stirring mechanism, the water solution can be quickly stirred to make the lithium carbonate powder dissolve quickly, thereby indirectly improving the purification efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of a battery-grade lithium carbonate purification device;

[0016] Figure 2 for Figure 1 Schematic diagram of the back structure;

[0017] Figure 3 for Figure 1 Schematic diagram of the internal three-dimensional structure;

[0018] Figure 4 for Figure 3 Schematic diagram of the partial back structure.

[0019] In the figure: 1. Device body; 2. Support rod; 3. Processing box; 4. Feed port; 5. Discharge port; 6. Drive motor; 7. First round wheel; 8. Belt; 9. Second round wheel; 10. Rotating column; 11. Disc; 12. Push rod; 15. Notch; 16. Connecting piece; 17. Limit block; 18. Rotating piece; 19. Rotating rod; 20. Placement slot; 21. Cam; 22. Reciprocating screw; 23. Moving bar; 24. Stirring rod; 25. Connecting column; 26. Filter plate. DETAILED DESCRIPTION

[0020] See also Figures 1 to 4 In an embodiment of the present invention, a battery-grade lithium carbonate purification device includes a device body 1. The interior of the device body 1 is filled with an appropriate amount of water for dissolving lithium carbonate. A discharge port 5 is provided on the right side of the device body 1. The discharge port 5 is used to discharge the liquid, and a filter is provided inside the discharge port 5 to filter the liquid. The upper end of the device body 1 is connected to a processing box 3 through a support rod 2. The processing box 3 can pre-treat the lithium carbonate powder in advance to facilitate subsequent rapid and uniform dissolution in water. A feed port 4 is provided at the upper end of the processing box 3, and lithium carbonate powder can be added to the interior of the processing box 3 through the feed port 4.

[0021] A driving motor 6 is provided on the side wall of the device body 1, and a first round wheel 7 is connected to the output shaft of the driving motor 6. A rotating column 10 is rotatably connected to the processing box 3, and the rotating column 10 passes through the outside of the processing box 3 and is connected to the second round wheel 9. The first round wheel 7 and the second round wheel 9 are connected by a belt 8. When the driving motor 6 starts working, it will immediately drive the first round wheel 7 to rotate. Under the action of the belt 8, the second round wheel 9 and the rotating column 10 can be driven to rotate synchronously. The rotating column 10 is fixedly connected to the outer wall of the processing box 3. A filter plate 26 is slidably connected to the inside of the processing box 3. When lithium carbonate powder is added to the processing box 3 through the feed port 4, the filter plate 26 will screen it to prevent the powder agglomeration from affecting the efficiency of subsequent stirring. The rotation of the rotating column 10 will drive the cam 21 to rotate, thereby pushing the filter plate 26 to move up and down, thereby accelerating the screening efficiency. There are two cams 21, which are located at both ends of the filter plate 26 to ensure its stability in up and down movement.

[0022] A connecting piece 16 is also connected between the device body 1 and the processing box 3. The connecting piece 16 is hollow and communicates with the internal space of the device body 1 and the processing box 3. The internal rotation of the connecting piece 16 is connected to a rotating rod 19. A placement groove 20 is provided on the rotating rod 19. The interior of the placement groove 20 is used to place the screened lithium carbonate powder. One end of the rotating rod 19 is fixedly connected to a connecting column 25. The connecting column 25 passes through the outside of the connecting piece 16 and is fixedly connected to a limit block 17. The limit block 17 is fixedly connected to a rotating piece 18. One end of the rotating column 10 located outside the processing box 3 is fixedly connected to a disc 11. The surface of the disc 11 is fixedly connected to a lever 12. The disc 11 is in full contact with the limit block 17. State, which plays a good limiting effect. The rotating column 10 will drive the disc 11 to rotate, and then drive the lever 12 to rotate. A notch 15 is provided on the disc 11. When the lever 12 is rotated to the bottom, it can push the rotating part 18 and the limit block 17 to rotate sixty degrees. After the rotation is completed, the disc 11 fixes the rotating part 18 and the limit block 17 again. When the limit block 17 rotates, it will drive the rotating rod 19 to rotate through the connecting column 25. Finally, the placement groove 20 can be rotated downward to communicate with the internal space of the device body 1, and the lithium carbonate powder inside it falls into the interior of the device body 1, so as to realize quantitative multiple addition of lithium carbonate powder and prevent the one-time addition of a large amount of powder from affecting the stirring work.

[0023] The internal rotation of the device body 1 is connected to a reciprocating screw 22, which passes through the outside of the device body 1 and is fixedly connected to the first circular wheel 7. The reciprocating screw 22 is connected to the moving bar 23 through a threaded sleeve. When the driving motor 6 drives the first circular wheel 7 to rotate, it will drive the reciprocating screw 22 to rotate synchronously, so that the moving bar 23 can reciprocate back and forth. The lower end of the moving bar 23 is fixedly connected to a plurality of stirring rods 24. The stirring rods 24 can stir the liquid, accelerate the rapid and uniform dissolution of lithium carbonate powder in water, and accelerate the purification efficiency.

[0024] The working principle of the present invention is as follows: the device is mainly used for the dissolution and filtration steps when purifying lithium carbonate. When the device is needed to purify lithium carbonate, the lithium carbonate powder can be poured into the processing box 3 through the feed port 4. The filter plate 26 arranged inside the processing box 3 can screen the powder to prevent the powder from agglomerating and affecting the subsequent stirring efficiency. At this time, the driving motor 6 starts to work, and then drives the first round wheel 7 to rotate. Under the action of the belt 8, it also drives the second round wheel 9 to rotate. Then the rotating column 10 inside the processing box 3 starts to rotate. When the rotating column 10 rotates, it drives the cam 21 to rotate synchronously, thereby pushing the filter plate 26 to reciprocate up and down, thereby accelerating its screening efficiency of the lithium carbonate powder. The powder after screening will enter the rotating column 10 below. The inside of the placement groove 20 inside the movable rod 19, and at this time the rotating column 10 will also drive the disc 11 to rotate, and then the lever 12 will rotate synchronously. Under the setting of the notch 15, when the lever 12 rotates to the bottom, it will push the limit block 17 and the rotating part 18 to rotate sixty degrees, and then drive the rotating rod 19 and the placement groove 20 to rotate through the connecting column 25. When the placement groove 20 is connected with the internal space of the device body 1 through rotation, the lithium carbonate powder inside it will fall into the interior of the device body 1. When the first round wheel 7 rotates, it will also drive the reciprocating screw 22 to rotate, so that the moving bar 23 and the stirring rod 24 move back and forth inside the device body 1 to achieve stirring, so that the lithium carbonate powder can be quickly dissolved in water, indirectly improving the purification efficiency.

[0025] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A battery-grade lithium carbonate purification device, comprising a device body (1), characterized in that: The upper end of the device body (1) is connected to the processing box (3) through a support rod (2). The device body (1) and the processing box (3) are also connected through a connecting piece (16). A quantitative mechanism is provided on the connecting piece (16). The quantitative mechanism is rotatably connected to a rotating column (10) inside the processing box (3). The rotating column (10) passes through the outside of the processing box (3) and is fixedly connected to a disk (11). The disk (11) is fixedly connected to a lever (12). The disk (1 1) A notch (15) is provided at the edge, the connecting piece (16) is internally rotatably connected to a rotating rod (19), the rotating rod (19) is provided with a placement groove (20), one end of the rotating rod (19) is fixedly connected to a connecting column (25), the connecting column (25) passes through the external fixed connection limit block (17) of the connecting piece (16), the limit block (17) is fixedly connected to a rotating piece (18), and the outer walls of the disc (11) and the limit block (17) are in full contact.

2. A battery-grade lithium carbonate purification device according to claim 1, characterized in that, The quantitative mechanism further comprises a driving motor (6) arranged on the side wall of the device body (1); a first round wheel (7) is fixedly connected to the output shaft of the driving motor (6); a second round wheel (9) is fixedly connected to the outer wall of the rotating column (10); the second round wheel (9) is located between the disc (11) and the processing box (3); and the first round wheel (7) and the second round wheel (9) are connected via a belt (8).

3. A battery-grade lithium carbonate purification device according to claim 2, characterized in that, A screening mechanism is provided inside the processing box (3), and the screening mechanism includes a filter plate (26) slidably connected to the inside of the processing box (3). The rotating column (10) is fixedly connected to a cam (21), and two cams (21) are provided and symmetrically distributed below the filter plate (26).

4. A battery-grade lithium carbonate purification device according to claim 2, characterized in that, A stirring mechanism is provided inside the device body (1), and the stirring mechanism comprises a reciprocating screw (22) rotatably connected inside the device body (1); the reciprocating screw (22) is transmission-connected to a moving bar (23) via a threaded sleeve; and a stirring rod (24) is fixedly connected to the lower end of the moving bar (23).

5. A battery-grade lithium carbonate purification device according to claim 4, characterized in that, The reciprocating screw rod (22) penetrates the outside of the device body (1) and is connected to the output shaft of the driving motor (6), and the moving bar (23) contacts the inner wall of the device body (1).

6. A battery-grade lithium carbonate purification device according to claim 1, characterized in that, A feed port (4) is provided at the upper end of the processing box (3), a discharge port (5) is provided on the side wall of the device body (1), and a filter element is provided on the discharge port (5).

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