Ultrasonic agitation device for battery-grade lithium carbonate

Abstract

The application provides an ultrasonic stirring device for battery-grade lithium carbonate. The ultrasonic stirring device for battery-grade lithium carbonate comprises a stirring kettle, an ultrasonic motor is installed on the top of the stirring kettle, stirring motors are installed on the left and right sides of the top of the stirring kettle and the ultrasonic motor, stirring shafts are installed on the output shafts of the stirring motors, the stirring shafts penetrate through the stirring kettle and extend to the inside of the stirring kettle, and ultrasonic stirring blades are installed on the stirring shafts. The ultrasonic stirring device for battery-grade lithium carbonate provided by the application can exert strong mechanical force on the lithium carbonate in liquid through ultrasonic waves, break the crystals of the lithium carbonate, release the potassium ions wrapped in the lithium carbonate into the stirring liquid, and make the wet lithium carbonate crystals undergo secondary crystallization, so that the potassium ions in the finished lithium carbonate can be effectively separated, and the integrated device is suitable for washing and impurity removal of battery-grade lithium carbonate.

Description

Technical Field

[0001] This invention relates to the field of lithium compound processing, and more particularly to an ultrasonic agitation apparatus for battery-grade lithium carbonate. Background Technology

[0002] Lithium carbonate is an inorganic compound, a colorless monoclinic crystal or a white powder, with the chemical formula Li₂CO₃. It is soluble in dilute acids, slightly soluble in water (more soluble in cold water than in hot water), and insoluble in alcohols and acetone. It is a commonly used raw material for lithium-ion batteries. With the national new energy development plan, lithium-ion batteries are one of the key energy industries supported by the state, and lithium carbonate is an important chemical raw material.

[0003] In the roasting and leaching process of lepidolite ore, lithium, sodium, and potassium ions in the ore all enter the leachate. Since lithium, sodium, and potassium ions belong to the same group, they have very similar properties. In the reaction that produces lithium carbonate, because the solubility of lithium carbonate is very low at high temperatures, lithium ions are separated in the form of lithium carbonate. Before this, the content of potassium and sodium ions in the leachate is further reduced by concentration, allowing them to precipitate in the form of salts. However, some potassium and sodium ions are still dissolved in the leachate and cannot be removed. The lithium carbonate crystals formed during the lithium precipitation process will contain small droplets containing potassium ions, resulting in a "peritectic" phenomenon.

[0004] In the production process of battery-grade lithium carbonate, the crude lithium carbonate is often washed to remove the mother liquor and various soluble impurities adsorbed on the surface of the lithium carbonate. Currently, the washing of lithium carbonate is generally carried out in a heated washing tank with high-speed stirring. The washing water and lithium carbonate are added to the washing tank and stirred to achieve the washing.

[0005] However, conventional rinsing operations can only clean the surface of lithium carbonate, but cannot remove the potassium ions trapped inside, resulting in substandard quality of lithium carbonate.

[0006] Therefore, it is necessary to provide an ultrasonic agitation device for battery-grade lithium carbonate to solve the above-mentioned technical problems. Summary of the Invention

[0007] This invention provides an ultrasonic agitation and washing device for battery-grade lithium carbonate, which solves the problem that conventional agitation and washing operations can only clean the surface of lithium carbonate, but cannot remove the potassium ions encapsulated inside the lithium carbonate, resulting in substandard quality of lithium carbonate.

[0008] To solve the above-mentioned technical problems, the ultrasonic agitation device for battery-grade lithium carbonate provided by the present invention includes: an agitation vessel;

[0009] An ultrasonic motor is installed at the top of the agitation tank. Stirring motors are installed at the top of the agitation tank, on both sides of the ultrasonic motor. A stirring shaft is installed on the output shaft of each stirring motor, penetrating the agitation tank and extending into its interior. Ultrasonic stirring blades are installed on the stirring shaft. A viewing window, a steam outlet, a feed inlet, and a water inlet are all installed at the top of the agitation tank. A liquid level and temperature integrated measuring instrument is connected through the top of the agitation tank. A heater is installed at the bottom of the inner wall of the agitation tank. Multiple discharge ports are installed at the bottom of the agitation tank.

[0010] Preferably, the agitator is cylindrical, and the outer surface of the agitator is provided with a heat insulation layer.

[0011] Preferably, the ultrasonic motor and the stirring motor are connected to form an ultrasonic stirring drive motor, and the stirring shaft is hollow, in which an ultrasonic transducer is installed.

[0012] Preferably, the ultrasonic stirring blades on the same stirring shaft are one large and one small, wherein the large blade is located at the bottom of the stirring shaft and the small blade is located a distance above the large blade. The large and small blades are connected to an ultrasonic transducer, and the outermost layer of the large and small blades is connected to a vibrating steel plate.

[0013] Preferably, the system further includes a separation box installed at the bottom of the agitator. A first discharge channel is provided between the separation box and the agitator. The separation box has an internal cavity, and a limiting groove is provided on the back side of the inner wall of the cavity. A conversion component is installed on the back side of the inner wall of the cavity, penetrating the separation box and extending to the front side of the separation box. A drive component is installed on the front side of the separation box, which drives the conversion component to rotate. A motion component is installed on the front side of the inner wall of the cavity, penetrating the separation box and extending to the back side of the separation box. A fixed block is installed on the top of the agitator, and a rotating rod is installed on the fixed block. A first transmission component is provided between one end of the rotating rod and one of the agitator shafts, and a second transmission component is provided between the other end of the rotating rod and the motion component. A second discharge channel is provided at the bottom of the separation box.

[0014] Preferably, the limiting groove includes a first sliding groove and a second sliding groove, both of which are formed on the back side of the inner wall of the inner cavity. The first sliding groove and the second sliding groove are connected to each other. The outer diameter of the second sliding groove and the first sliding groove are the same. The inner diameter of the second sliding groove is smaller than the inner diameter of the first sliding groove. The inner diameter of the second sliding groove and the inner diameter of the first sliding groove are connected by an arc-shaped segment.

[0015] Preferably, the conversion assembly includes a rotating shaft, a rotating gear, a sleeve, a movable rod, an elastic element, a corrugated plate, a slider, a sealing plate, and a filter plate. The rotating shaft is rotatably connected to the inner wall of the inner cavity, one end of the rotating shaft passes through the separation box and extends to the front of the separation box. The rotating gear is fixedly connected to the outer surface of the rotating shaft. The sleeve is fixed to the rotating shaft. The movable rod is slidably connected to the inside of the sleeve. The elastic element is disposed between the movable rod and the sleeve. The corrugated plate is fixed to one side of the movable rod. The slider is fixed to the other side of the movable rod and is slidably connected to the limiting groove. The sealing plate is fixed to the top of the movable rod, and the filter plate is fixed to the sealing plate.

[0016] Preferably, the drive assembly includes a pusher, a moving block, and a straight toothed plate. The pusher is fixed to the front of the separation box by a mounting block. The moving block is fixed to one end of the pusher and slidably connected to the front of the separation box. The straight toothed plate is fixed to the bottom of the moving block.

[0017] Preferably, the motion component includes a fixed frame, a reciprocating screw, and a threaded block. The fixed frame is fixed to the front of the inner wall of the cavity, passes through the separation box, and extends to the back of the separation box. The reciprocating screw is rotatably connected to the inside of the fixed frame, and one end of the reciprocating screw passes through the fixed frame and extends to the outside of the fixed frame. The threaded block is threadedly connected to the reciprocating screw and is slidably connected to the fixed frame.

[0018] Compared with related technologies, the ultrasonic agitation device for battery-grade lithium carbonate provided by the present invention has the following advantages:

[0019] This invention provides an ultrasonic agitation and washing device for battery-grade lithium carbonate. By applying strong mechanical force to lithium carbonate in liquid using ultrasound, the lithium carbonate crystals are broken up, releasing the potassium ions trapped inside into the washing liquid. The wet lithium carbonate crystals then undergo secondary crystallization, ultimately achieving effective separation of potassium ions from the finished lithium carbonate product. Through integrated design, this device is suitable for washing and removing impurities from battery-grade lithium carbonate. Attached Figure Description

[0020] Figure 1 A schematic diagram of the structure of the first embodiment of the ultrasonic agitation device for battery-grade lithium carbonate provided by the present invention;

[0021] Figure 2 for Figure 1 A schematic cross-sectional view of the agitator shown;

[0022] Figure 3A schematic diagram of the structure of a second embodiment of the ultrasonic agitation device for battery-grade lithium carbonate provided by the present invention;

[0023] Figure 4 for Figure 3 A side view of the separation box shown;

[0024] Figure 5 for Figure 3 The front sectional view of the separation box shown;

[0025] Figure 6 for Figure 3 The rear cross-sectional view of the separation box shown;

[0026] Figure 7 for Figure 3 The side sectional view of the separation box shown;

[0027] Figure 8 for Figure 5 The diagram shows the structure of the conversion component.

[0028] Figure 9 for Figure 6 The diagram shows the structure of the motion component.

[0029] Figure 10 This is a motion state diagram of the driving component, where, Figure 10 (a) is the initial state diagram of the driving component. Figure 10 (b) is a schematic diagram of the state of the driving component during its first extension. Figure 10 (c) is a schematic diagram of the second extension state of the driving component. Figure 10 (d) is a schematic diagram of the state where the driving component extends again;

[0030] Figure 11 This is a motion state diagram of the transformation component, where, Figure 11 (a) is the initial state diagram of the conversion component. Figure 11 (b) is a schematic diagram of the state of the conversion component during its first rotation. Figure 11 (c) is a schematic diagram of the state of the conversion component during its second rotation. Figure 11 (d) is a schematic diagram of the state of the conversion component rotating again.

[0031] Numbering on the map:

[0032] 1. Stirring tank; 2. Ultrasonic motor; 3. Stirring motor; 4. Stirring shaft; 5. Ultrasonic stirring blades; 6. Viewing window; 7. Steam outlet; 8. Feed inlet; 9. Water inlet; 10. Liquid level and temperature integrated measuring instrument; 11. Heater; 12. Discharge outlet; 13. Insulation layer.

[0033] 14. Separation box; 15. First discharge channel; 16. Inner cavity;

[0034] 17. Limiting groove; 171. First slide groove; 172. Second slide groove;

[0035] 18. Conversion component; 181. Rotating shaft; 182. Rotating gear; 183. Sleeve rod; 184. Movable rod; 185. Elastic element; 186. Wave plate; 187. Slider; 188. Sealing plate; 189. Filter plate.

[0036] 19. Drive assembly; 191. Pushing component; 192. Moving block; 193. Straight gear plate;

[0037] 20. Motion component; 201. Fixed frame; 202. Reciprocating lead screw; 203. Threaded block;

[0038] 21. Fixed block; 22. Rotating rod; 23. First transmission assembly; 24. Second transmission assembly; 25. Second discharge channel. Detailed Implementation

[0039] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0040] First Embodiment

[0041] Please refer to the following: Figure 1 , Figure 2 ,in, Figure 1 A schematic diagram of the structure of the first embodiment of the ultrasonic agitation device for battery-grade lithium carbonate provided by the present invention; Figure 2 for Figure 1 The diagram shows a cross-sectional view of the agitation vessel. The ultrasonic agitation device for battery-grade lithium carbonate includes: agitation vessel 1;

[0042] An ultrasonic motor 2 is installed on the top of the agitation tank 1. A stirring motor 3 is installed on the top of the agitation tank 1 and on both sides of the ultrasonic motor 2. A stirring shaft 4 is installed on the output shaft of the stirring motor 3. The stirring shaft 4 passes through the agitation tank 1 and extends into its interior. Ultrasonic stirring blades 5 are installed on the stirring shaft 4. A viewing window 6 is installed on the top of the agitation tank 1. A steam outlet 7 is installed on the top of the agitation tank 1. A feed inlet 8 is installed on the top of the agitation tank 1. A water inlet 9 is installed on the top of the agitation tank 1. A liquid level and temperature integrated measuring instrument 10 is connected through the top of the agitation tank 1. A heater 11 is installed at the bottom of the inner wall of the agitation tank 1. Multiple discharge ports 12 are installed at the bottom of the agitation tank 1.

[0043] In this embodiment, there are 3 discharge ports 12, which are installed at different heights at the bottom of the agitator 1.

[0044] In this embodiment, the water inlet 9, the feed inlet 8, and the steam outlet 7 are on the same straight line and parallel to the diameter of the upper plane of the stirring tank 1. The integrated liquid level and temperature measuring instrument 10 is located directly in front of the feed inlet 8.

[0045] In this embodiment, the bottom of the stirring tank 1 is designed to be arc-shaped in order to facilitate the discharge of the liquid.

[0046] In this embodiment, the central part of the bottom of the inner wall of the agitator 1 is a cone-shaped protrusion, and a heater is provided below it. The edge of the protrusion is a certain distance away from the discharge port 12.

[0047] Please refer to the following: Figure 2 The agitator 1 is cylindrical, and the outer surface of the agitator 1 is provided with a heat insulation layer 13.

[0048] In this embodiment, the insulation layer 13 serves to keep the temperature warm.

[0049] Please refer to it again. Figure 2 The ultrasonic motor 2 and the stirring motor 3 are connected to form an ultrasonic stirring drive motor, and the stirring shaft 4 is hollow and an ultrasonic transducer is installed therein.

[0050] Please refer to it again. Figure 2 The ultrasonic stirring blades 5 on the same stirring shaft 4 are of different sizes, with the larger blade located at the bottom of the stirring shaft 4 and the smaller blade located a distance above the larger blade. The large and small blades are connected to an ultrasonic transducer, and the outermost layer of the large and small blades is connected to a vibrating steel plate to convert ultrasonic signals into mechanical kinetic energy.

[0051] The working principle of the ultrasonic agitation device for battery-grade lithium carbonate provided by this invention is as follows:

[0052] The washing solution is added into the washing vessel 1, and then lithium carbonate is added into the washing vessel 1. After starting the ultrasonic motor 2 and the stirring motor 3, ultrasonic waves are generated to exert strong mechanical force on the lithium carbonate in the liquid, breaking the lithium carbonate crystals and releasing the potassium ions trapped inside into the washing solution. After the washing solution is discharged through the discharge port 12 at different heights, the wet lithium carbonate crystals are left in the washing vessel 1. Then, the wet lithium carbonate crystals are re-crystallized by heating with a heater.

[0053] Compared with related technologies, the ultrasonic agitation device for battery-grade lithium carbonate provided by the present invention has the following advantages:

[0054] By applying strong mechanical force to lithium carbonate in liquid using ultrasound, the lithium carbonate crystals are broken up, releasing the potassium ions trapped inside into the washing solution. The wet lithium carbonate crystals then undergo secondary crystallization, ultimately achieving effective separation of potassium ions from the finished lithium carbonate product. Through integrated design, this method is suitable for washing and removing impurities from battery-grade lithium carbonate.

[0055] Second Embodiment

[0056] Please refer to the following: Figure 3-11 , Figure 3 A schematic diagram of the structure of a second embodiment of the ultrasonic agitation device for battery-grade lithium carbonate provided by the present invention; Figure 4 for Figure 3 A side view of the separation box shown; Figure 5 for Figure 3 The front sectional view of the separation box shown; Figure 6 for Figure 3 The rear cross-sectional view of the separation box shown; Figure 7 for Figure 3 The side sectional view of the separation box shown; Figure 8 for Figure 5 The diagram shows the structure of the conversion component. Figure 9 for Figure 6 The diagram shows the structure of the motion component. Figure 10 This is a motion state diagram of the driving component, where, Figure 10 (a) is the initial state diagram of the driving component. Figure 10 (b) is a schematic diagram of the state of the driving component during its first extension. Figure 10 (c) is a schematic diagram of the second extension state of the driving component. Figure 10 (d) is a schematic diagram of the state where the driving component extends again; Figure 11 This is a motion state diagram of the transformation component, where, Figure 11 (a) is the initial state diagram of the conversion component. Figure 11 (b) is a schematic diagram of the state of the conversion component during its first rotation. Figure 11 (c) is a schematic diagram of the state of the conversion component during its second rotation. Figure 11 (d) is a schematic diagram showing the state of the conversion component rotating again;

[0057] Based on the ultrasonic agitation apparatus for battery-grade lithium carbonate provided in the first embodiment of this application, the second embodiment of this application proposes another ultrasonic agitation apparatus for battery-grade lithium carbonate. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0058] Specifically, the ultrasonic agitation device for battery-grade lithium carbonate provided in the second embodiment of this application differs in that it further includes a separation box 14, which is installed at the bottom of the agitation vessel 1. A first discharge channel 15 is provided between the separation box 14 and the agitation vessel 1. An inner cavity 16 is formed inside the separation box 14, and a limiting groove 17 is formed on the back side of the inner wall of the inner cavity 16. A conversion component 18 is installed on the back side of the inner wall of the inner cavity 16. The conversion component 18 penetrates the separation box 14 and extends to the front side of the separation box 14. A drive component 1 is installed on the front side of the separation box 14. 9. The driving component 19 is used to drive the conversion component 18 to rotate. A motion component 20 is installed on the front side of the inner wall of the inner cavity 16. The motion component 20 passes through the separation box 14 and extends to the back side of the separation box 14. A fixing block 21 is installed on the top of the stirring tank 1. A rotating rod 22 is installed on the fixing block 21. A first transmission component 23 is provided between one end of the rotating rod 22 and one of the stirring shafts 4. A second transmission component 24 is provided between the other end of the rotating rod 22 and the motion component 20. A second discharge channel 25 is opened at the bottom of the separation box 14.

[0059] In this embodiment, the first discharge channel 15 is connected to the inner cavity 16, and the second discharge channel 25 is connected to the inner cavity 16.

[0060] In other embodiments, a sealing plate or other structure may be provided at the outlet of the second discharge channel 25 to control the opening and closing of the second discharge channel 25.

[0061] Please refer to the following: Figure 10 (a) and Figure 11 (a) The device is in its initial state. At this time, the sealing plate 188 is at the bottom of the first discharge channel 15, which blocks the first discharge channel 15. At this time, the inside of the stirring and washing vessel 1 is in a closed state, and the stirring and washing reaction can be carried out inside.

[0062] Please refer to the following: Figure 10 (b) and Figure 11 (b) After the lithium carbonate is washed, the extension of the pusher 191 indirectly drives the rotating shaft 181 to rotate, which in turn causes the sleeve rod 183 to swing counterclockwise, thereby indirectly causing the sealing plate 188 to move counterclockwise in a circular motion, so that it no longer blocks the first discharge channel 15, but drives the filter plate 189 to the bottom of the first discharge channel 15, thereby filtering out the washing liquid and leaving the wet lithium carbonate crystals inside the washing tank 1 for secondary crystallization.

[0063] Please refer to the following: Figure 10 (c) and Figure 11(c) The further extension of the pusher 191 indirectly drives the rotating shaft 181 to continue rotating, thereby causing the sleeve rod 183 to swing counterclockwise, thereby driving the sealing plate 188 to move counterclockwise in a circular motion, thereby driving the filter plate 189 to move counterclockwise in a circular motion, thereby making the first discharge channel 15 completely open, and then allowing the lithium carbonate after secondary crystallization to be discharged from the second discharge channel 25.

[0064] Please refer to the following: Figure 10 (d) and Figure 11 (d) The extension of the pusher 191 indirectly drives the rotating shaft 181 to continue rotating, causing the sleeve rod 183 to swing counterclockwise again. This causes the movable rod 184 to swing counterclockwise with the sleeve rod 183, which in turn causes the slider 187 to enter the second groove 172 from the first groove 171. At this time, the elastic element 185 will rebound and contract, causing the movable rod 184 to retract into the sleeve rod 183, and causing the wave plate 186 to contact the moving component 20. The filter plate 189 is also in an inverted state. With the rotation of the stirring shaft 4, the reciprocating screw 202 will rotate, causing the threaded block 203 to move back and forth and move on the wave plate 186. This causes the wave plate 186 to vibrate up and down, driving the movable rod 184 to vibrate up and down, which in turn causes the filter plate 189 to vibrate and shake off the lithium carbonate on its surface for easy cleaning.

[0065] Please refer to the following: Figure 6 The limiting groove 17 includes a first sliding groove 171 and a second sliding groove 172. The first sliding groove 171 and the second sliding groove 172 are both formed on the back side of the inner wall of the inner cavity 16. The first sliding groove 171 and the second sliding groove 172 are connected. The outer diameter of the second sliding groove 172 and the first sliding groove 171 are the same. The inner diameter of the second sliding groove 172 is smaller than the inner diameter of the first sliding groove 171. The inner diameter of the second sliding groove 172 and the inner diameter of the first sliding groove 171 are connected by an arc-shaped segment.

[0066] In this embodiment, the first groove 171 is used to limit the slider 187. When the slider 187 can slide within the trajectory of the first groove 171, the sealing plate 188 and the filter plate 189 can move close to the inner wall of the inner cavity 16.

[0067] In this embodiment, when the slider 187 moves from the first slide groove 171 to the second slide groove 172, the space of the second slide groove 172 is larger, and the inner diameter of the second slide groove 172 is smaller than that of the first slide groove 171. With the elasticity of the elastic member 185, the sleeve rod 182 and the movable rod 184 will contract at this time, so the slider 187 has space for linear movement, and the movable rod 184 has space for linear movement.

[0068] In this embodiment, the inner diameter of the second slide groove 172 and the inner diameter of the first slide groove 171 are connected by an arc-shaped segment, so that the slider 187 can smoothly slide from the second slide groove 172 into the interior of the first slide groove 171, thereby allowing the movable rod 184 and the sleeve rod 182 to extend apart, and allowing the sealing plate 188 and the filter plate 189 to be tightly attached to the inner wall of the inner cavity 16.

[0069] Please refer to the following: Figure 8 The conversion assembly 18 includes a rotating shaft 181, a rotating gear 182, a sleeve rod 183, a movable rod 184, an elastic element 185, a wave plate 186, a slider 187, a sealing plate 188, and a filter plate 189. The rotating shaft 181 is rotatably connected to the inner wall of the inner cavity 16. One end of the rotating shaft 181 passes through the separation box 14 and extends to the front of the separation box 14. The rotating gear 182 is fixedly connected to the outer surface of the rotating shaft 181, and the sleeve rod 183 is fixed to the outer surface of the separation box 14. On the rotating shaft 181, the movable rod 184 is slidably connected to the inside of the sleeve rod 183. The elastic element 185 is disposed between the movable rod 184 and the sleeve rod 183. The wave plate 186 is fixed to one side of the movable rod 184. The slider 187 is fixed to the other side of the movable rod 184. The slider 187 is slidably connected to the limiting groove 17. The sealing plate 188 is fixed to the top of the movable rod 184. The filter plate 189 is fixed to the sealing plate 188.

[0070] In this embodiment, the sealing plate 188 is used to block the first discharge channel 15. When the sealing plate 188 is switched to the filter plate 189, it can play a filtering role. The sealing plate 188 and the filter plate 189 are provided with sealing gaskets to ensure sealing when the sealing plate 188 and the filter plate 189 are tightly attached to the inner wall of the inner cavity 16.

[0071] In this embodiment, the sleeve 183 is a fully enclosed structure;

[0072] In this embodiment, the elastic element 185 includes, but is not limited to, springs, elastic ribs, etc., which only need to provide elastic tension to the movable rod 184. In the initial state, the elastic element 185 is in a stretched state.

[0073] In use, when the drive assembly 19 drives the rotating gear 182 to rotate, it can drive the rotating shaft 181 to rotate, which in turn causes the sleeve rod 183 to swing and drive the movable rod 184 to swing, thereby causing the sealing plate 188 and the filter plate 189 to move in a circular motion, and the two can be used alternately.

[0074] When the rotating shaft 181 rotates, it drives the sleeve rod 183 and the movable rod 184 to swing, which causes the wave plate 186 and the slider 187 to move in a circular motion. This causes the slider 187 to enter the second groove 172 from the first groove 171. At this time, the elastic element 185 will rebound, causing the movable rod 184 to contract, which in turn causes the wave plate 186 to move to the motion component 20. Through the movement of the motion component 20, the wave plate 186 can be driven to vibrate, which in turn causes the movable rod 184 to vibrate, causing the filter plate 189 to vibrate. On the one hand, this can shake off the lithium carbonate attached to its surface, and on the other hand, it can clean the filter plate 189 to prevent it from clogging.

[0075] Please refer to it again. Figure 8 The drive assembly 19 includes a pusher 191, a moving block 192, and a straight tooth plate 193. The pusher 191 is fixed to the front of the separation box 14 by a mounting block. The moving block 192 is fixed to one end of the pusher 191 and is slidably connected to the front of the separation box 14. The straight tooth plate 193 is fixed to the bottom of the moving block 192.

[0076] In this embodiment, the spur gear 193 meshes with the outer surface of the rotating gear 182.

[0077] In this embodiment, the pushing component 191 includes, but is not limited to, a cylinder, a hydraulic cylinder, an electric telescopic rod, a linear motor, etc., as long as it can drive the moving block 192 to move linearly.

[0078] In use, the extension of the pusher 191 can drive the moving block 192 to move to the left, thereby driving the straight gear plate 193 to move to the left, which in turn can drive the rotating gear 182 to rotate counterclockwise.

[0079] Similarly, when the pusher 191 retracts, it will cause the moving block 192 to move to the right, thereby causing the straight gear plate 193 to move to the right, and then causing the rotating gear 182 to rotate clockwise to reset.

[0080] Please refer to the following: Figure 9 The motion component 20 includes a fixed frame 201, a reciprocating lead screw 202, and a threaded block 203. The fixed frame 201 is fixed to the front side of the inner wall of the inner cavity 16. The fixed frame 201 passes through the separation box 14 and extends to the back side of the separation box 14. The reciprocating lead screw 202 is rotatably connected to the inside of the fixed frame 201, and one end of the reciprocating lead screw 202 passes through the fixed frame 201 and extends to the outside of the fixed frame 201. The threaded block 203 is threadedly connected to the reciprocating lead screw 202, and the threaded block 203 is slidably connected to the fixed frame 201.

[0081] In this embodiment, when the stirring motor 3 drives the stirring shaft 4 to rotate, it will drive the rotating rod 22 to rotate through the first transmission component 23. The rotating rod 22 drives the reciprocating screw 202 to rotate through the second transmission component 24, thereby causing the threaded block 203 to reciprocate back and forth.

[0082] When the conversion component 18 rotates, the wave plate 186 is positioned at the motion component 20. When the motion component 20 moves, it drives the threaded block 203 to reciprocate, which in turn moves on the wave structure of the wave plate 186, causing the wave plate 186 to move up and down and generate vibration.

[0083] In this embodiment, the first transmission assembly 23 includes two meshing bevel gears, one of which is mounted on the outer surface of the stirring shaft 4, and the other is mounted on one end of the rotating rod 22.

[0084] In other embodiments, the first transmission component 23 may also be in the form of a worm gear and a worm, with the worm gear mounted on the outer surface of the stirring shaft 4 and the worm mounted on one end of the rotating rod 22.

[0085] In this embodiment, the second transmission assembly 24 includes two pulleys and a belt. One pulley is mounted on one end of the rotating rod 22, and the other pulley is mounted on one end of the reciprocating screw 202. The belt drive is connected to the outer surfaces of the two pulleys.

[0086] In other embodiments, the second transmission assembly 24 may also be in the form of a sprocket and a chain, including two sprockets and a chain, with one sprocket mounted at one end of the rotating rod 22 and the other sprocket mounted at one end of the reciprocating screw 202, and the sprocket drive connected to the outer surfaces of the two sprockets.

[0087] The working principle of the ultrasonic agitation device for battery-grade lithium carbonate provided by this invention is as follows:

[0088] After the lithium carbonate is washed, the driving component 19 drives the conversion component 18 to rotate counterclockwise, thereby indirectly causing the sealing plate 188 to move counterclockwise in a circular motion, so that it no longer blocks the first discharge channel 15, but instead drives the filter plate 189 to the bottom of the first discharge channel 15, thereby filtering out the washing liquid and leaving the wet lithium carbonate crystals inside the washing kettle 1 for secondary crystallization.

[0089] The drive component 19 drives the conversion component 18 to rotate counterclockwise, thereby driving the sealing plate 188 to rotate counterclockwise, which in turn drives the filter plate 189 to rotate counterclockwise, thus making the first discharge channel 15 completely open, and allowing the lithium carbonate after secondary crystallization to be discharged from the second discharge channel 25.

[0090] Driven by the drive assembly 19, the conversion assembly 18 continues to rotate counterclockwise, causing the sleeve rod 183 to swing counterclockwise again. This causes the movable rod 184 to swing counterclockwise along with the sleeve rod 183, thereby causing the slider 187 to enter the second groove 172 from the first groove 171. At this time, the elastic element 185 will rebound and contract, causing the movable rod 184 to retract into the sleeve rod 183, and causing the wave plate 186 to contact the motion assembly 20. The filter plate 189 is also in an inverted state. With the rotation of the stirring shaft 4, the motion assembly 20 will move back and forth, causing the filter plate 189 to vibrate and shake off the lithium carbonate on its surface for easy cleaning.

[0091] Compared with related technologies, the ultrasonic agitation device for battery-grade lithium carbonate provided by the present invention has the following advantages:

[0092] By using the conversion component 18, the drive component 19, and the motion component 20 in cooperation, when the pusher 191 extends for the first time, the device can be switched from the washing state to the filtering state, which facilitates the separation of lithium carbonate from the washing water. When the pusher 191 extends for the second time, the device can be switched from the filtering state to the discharge state, which facilitates the discharge of lithium carbonate after secondary crystallization. When the pusher 191 extends further, the device can be switched from the discharge state to the filter plate cleaning state, which facilitates the cleaning of the filter plate 189 and avoids clogging. This invention realizes rapid switching between different states, is simple and convenient to operate, and has the effect of multi-functional use.

[0093] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An ultrasonic agitation device for battery-grade lithium carbonate, characterized in that, include: Stirring and washing kettle; An ultrasonic motor is installed on the top of the agitation tank. A stirring motor is installed on both the top of the agitation tank and on both the left and right sides of the ultrasonic motor. A stirring shaft is installed on the output shaft of the stirring motor. The stirring shaft passes through the agitation tank and extends into the interior of the agitation tank. Ultrasonic stirring blades are installed on the stirring shaft. A viewing window, a steam outlet, a feed inlet, and a water inlet are installed on the top of the agitation tank. A liquid level and liquid temperature integrated measuring instrument is connected through the top of the agitation tank. A heater is installed at the bottom of the inner wall of the agitation tank. Multiple discharge ports are installed at the bottom of the agitation tank. It also includes a separation box, which is installed at the bottom of the agitator. A first discharge channel is provided between the separation box and the agitator. The separation box has an inner cavity. A limiting groove is provided on the back side of the inner wall of the inner cavity. A conversion component is installed on the back side of the inner wall of the inner cavity. The conversion component passes through the separation box and extends to the front side of the separation box. A drive component is installed on the front side of the separation box. The drive component is used to drive the conversion component to rotate. A motion component is installed on the front side of the inner wall of the inner cavity. The motion component passes through the separation box and extends to the back side of the separation box. The conversion assembly includes a rotating shaft, a rotating gear, a sleeve, a movable rod, an elastic element, a corrugated plate, a slider, a sealing plate, and a filter plate. The rotating shaft is rotatably connected to the inner wall of the inner cavity. One end of the rotating shaft passes through the separation box and extends to the front of the separation box. The rotating gear is fixedly connected to the outer surface of the rotating shaft. The sleeve is fixed to the rotating shaft. The movable rod is slidably connected to the inside of the sleeve. The elastic element is disposed between the movable rod and the sleeve. The corrugated plate is fixed to one side of the movable rod. The slider is fixed to the other side of the movable rod and is slidably connected to the limiting groove. The sealing plate is fixed to the top of the movable rod, and the filter plate is fixed to the sealing plate.

2. The ultrasonic agitation apparatus for battery-grade lithium carbonate according to claim 1, characterized in that, The agitator is cylindrical, and its outer surface is provided with a heat insulation layer.

3. The ultrasonic agitation apparatus for battery-grade lithium carbonate according to claim 1, characterized in that, The ultrasonic motor and the stirring motor are connected to form an ultrasonic stirring drive motor, and the stirring shaft is hollow, in which an ultrasonic transducer is installed.

4. The ultrasonic agitation apparatus for battery-grade lithium carbonate according to claim 3, characterized in that, The ultrasonic stirring blades on the same stirring shaft are of different sizes, with the larger blade located at the bottom of the stirring shaft and the smaller blade located a distance above the larger blade. The large and small blades are connected to an ultrasonic transducer, and the outermost layer of the large and small blades is connected to a vibrating steel plate.

5. The ultrasonic agitation apparatus for battery-grade lithium carbonate according to claim 1, characterized in that, A fixed block is installed on the top of the agitator, and a rotating rod is installed on the fixed block. A first transmission assembly is provided between one end of the rotating rod and one of the agitating shafts, and a second transmission assembly is provided between the other end of the rotating rod and the motion assembly. A second discharge channel is provided at the bottom of the separation box.

6. The ultrasonic agitation apparatus for battery-grade lithium carbonate according to claim 1, characterized in that, The limiting groove includes a first sliding groove and a second sliding groove. Both the first sliding groove and the second sliding groove are formed on the back side of the inner wall of the inner cavity. The first sliding groove and the second sliding groove are connected. The outer diameter of the second sliding groove and the first sliding groove are the same. The inner diameter of the second sliding groove is smaller than the inner diameter of the first sliding groove. The inner diameter of the second sliding groove and the inner diameter of the first sliding groove are connected by an arc-shaped segment.

7. The ultrasonic agitation apparatus for battery-grade lithium carbonate according to claim 1, characterized in that, The drive assembly includes a pusher, a moving block, and a straight toothed plate. The pusher is fixed to the front of the separation box by a mounting block. The moving block is fixed to one end of the pusher and is slidably connected to the front of the separation box. The straight toothed plate is fixed to the bottom of the moving block.

8. The ultrasonic agitation apparatus for battery-grade lithium carbonate according to claim 1, characterized in that, The motion assembly includes a fixed frame, a reciprocating lead screw, and a threaded block. The fixed frame is fixed to the front of the inner wall of the cavity, passes through the separation box, and extends to the back of the separation box. The reciprocating lead screw is rotatably connected to the inside of the fixed frame, and one end of the reciprocating lead screw passes through the fixed frame and extends to the outside of the fixed frame. The threaded block is threadedly connected to the reciprocating lead screw and is slidably connected to the fixed frame.

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