Equipment for preparing high-quality lithium carbonate from lithium precipitation mother liquor

Abstract

The utility model relates to the field of lithium precipitation mother liquor preparation equipment, in particular to equipment for preparing high-quality lithium carbonate from lithium precipitation mother liquor, which comprises a device shell, a control panel and a servo motor are respectively arranged at the front end and the rear end of the device shell, and lifting scraping seats are arranged at the upper end and the lower end of the inner wall of the device shell in front of the servo motor. Stirring rods are arranged on the inner sides of the lifting scraping seats, stirring fan blades are arranged on the outer sides of the stirring rods, and a first lead screw is arranged at the bottom end, located on the inner side of the device shell, of one lifting scraping seat; the inner wall of the device shell is cleaned through the two lifting scraping seats, when the two lifting scraping seats conduct lifting motion, one stirring rod in the two lifting scraping seats drives the other stirring rods to rotate at the same time, stirring fan blades are arranged on the outer sides of the stirring rods, and therefore the stirring effect is improved. Therefore, in the rotating process of the multiple stirring rods, the lithium precipitation mother liquor and the mixed medicament in the device shell are fully stirred.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium precipitation mother liquor preparation equipment, in particular to an equipment for preparing high-quality lithium carbonate from lithium precipitation mother liquor. Background Art

[0002] Lithium carbonate is used to prepare various lithium compounds, metallic lithium and its isotopes. It is also used to prepare catalysts for chemical reactions and has applications in semiconductor, ceramic, television, pharmaceutical and atomic energy industries. It is also used in lithium-ion batteries and as a coagulant accelerator in cement admixtures. There are many methods for preparing lithium carbonate. Usually, high-purity lithium carbonate is recovered by using the lithium precipitation mother liquor of battery-grade lithium carbonate. The process of preparing lithium carbonate from the lithium precipitation mother liquor of battery-grade lithium carbonate includes treatments such as stirring, filtration, heating and cooling.

[0003] In the process of preparing lithium carbonate from the lithium precipitation mother liquor of battery-grade lithium carbonate, a precipitant needs to be added to filter out the internal calcium salt precipitate or magnesium salt precipitate. The stirring rods set by the traditional stirring method can only stir the internal solution in a single direction, either clockwise or counterclockwise, resulting in a low mixing efficiency of the liquid, a low precipitation efficiency of calcium salt or magnesium salt, and thus a reduced purity of the prepared lithium carbonate. Moreover, the raw materials and added medicaments for preparing the lithium precipitation mother liquor are likely to remain inside the preparation device, which is not convenient for subsequent cleaning.

[0004] Therefore, aiming at the problems that the existing lithium precipitation mother liquor preparation equipment has a low mixing efficiency of the raw materials and added medicaments for preparing the lithium mother liquor, and the raw materials and added medicaments for preparing the lithium precipitation mother liquor are likely to remain inside the preparation device, which is not convenient for subsequent cleaning, an equipment for preparing high-quality lithium carbonate from lithium precipitation mother liquor can be designed. The inner wall of the device housing is cleaned by two lifting scraping seats. When the two lifting scraping seats move up and down, one of the stirring rods inside the two lifting scraping seats drives the other multiple stirring rods to rotate simultaneously. Stirring fan blades are arranged on the outer sides of the multiple stirring rods, so that the lithium precipitation mother liquor and the mixed medicaments in the device housing are fully stirred during the rotation of the multiple stirring rods. Summary of the Utility Model

[0005] In order to overcome the problems that the existing lithium precipitation mother liquor preparation equipment has a low mixing efficiency of the raw materials and added medicaments for preparing the lithium mother liquor, and the raw materials and added medicaments for preparing the lithium precipitation mother liquor are likely to remain inside the preparation device, which is not convenient for subsequent cleaning.

[0006] The technical solution of the present utility model is as follows: An apparatus for preparing high-quality lithium carbonate from lithium precipitation mother liquor, comprising a device housing. A control panel and a servo motor are respectively provided at the front and rear ends of the device housing. Lifting scraping seats are provided at the upper and lower ends of the inner wall of the device housing in front of the servo motor. A stirring rod is provided inside the lifting scraping seat, and stirring fan blades are provided outside the stirring rod. A first lead screw is provided at the bottom end of one of the lifting scraping seats at the bottom end inside the device housing. The top end of the first lead screw penetrates through the two lifting scraping seats and extends to the top end inside the device housing. A transmission rod is provided at the front end of the servo motor, and one end of the transmission rod extends to the outside of the central position of the first lead screw.

[0007] Preferably, the inner wall of the device housing is cleaned by two lifting scraping seats. When the two lifting scraping seats perform a lifting movement, one of the stirring rods inside the two lifting scraping seats drives the other multiple stirring rods to rotate simultaneously. Stirring fan blades are provided outside the multiple stirring rods. Thus, during the rotation of the multiple stirring rods, the lithium precipitation mother liquor and the mixed medicament inside the device housing are fully stirred.

[0008] As a preference, a main control chip is provided inside the control panel. The control panel and the servo motor are electrically connected through the main control chip.

[0009] As a preference, the transmission rod is located at the output end of the front end of the servo motor, and the servo motor is connected to the transmission rod through a coupling.

[0010] As a preference, bevel gears are provided at one end of the transmission rod and at the intersection of the first lead screw and the transmission rod. The transmission rod and the first lead screw are connected by bevel gear transmission. The first lead screw is a double-threaded lead screw, and the threads at the upper and lower ends of the first lead screw are symmetric with respect to the center of the first lead screw.

[0011] As a preference, multiple stirring rods are provided. Transmission wheels are provided inside the lifting scraping seats at the rear ends of the stirring rods, and transmission belts are provided inside the transmission wheels. The multiple stirring rods are connected by transmission wheels and transmission belts.

[0012] As a preference, a rack groove is provided on the inner wall of the device housing in front of one of the stirring rods. One of the stirring rods penetrates through the lifting scraping seat and extends to the inside of the rack groove. A rotating head is provided at the front end of one of the stirring rods inside the rack groove, and a rack block is provided on the inner wall of the rack groove on one side of the rotating head. The rotating head and the rack block are meshed with each other.

[0013] As a preference, feeding ports and a discharging port are respectively provided on both sides of the top end of the device housing and at the bottom end of the device housing. Electronic valves are provided inside the feeding ports and the discharging port. A feeding pipe is provided at the rear end of the electronic valve, and the rear end of the feeding pipe extends to the inside of the device housing.

[0014] The beneficial effects of the present utility model:

[0015] The inner wall of the device housing is cleaned by two lifting scraping seats. When the two lifting scraping seats move up and down, one stirring rod inside the two lifting scraping seats drives the other multiple stirring rods to rotate simultaneously. Stirring fan blades are arranged on the outer sides of the multiple stirring rods, so that the lithium precipitation mother liquor and the mixed medicament in the device housing are fully stirred during the rotation of the multiple stirring rods. Brief Description of the Drawings

[0016] Figure 1 It shows a schematic structural diagram of the whole of the present utility model;

[0017] Figure 2 It shows a schematic structural diagram of the device housing of the present utility model;

[0018] Figure 3 It shows a schematic structural diagram of the lifting scraping seat of the present utility model;

[0019] Figure 4 It shows a schematic structural diagram of the connection part between the first lead screw and the transmission rod of the present utility model.

[0020] Description of the reference signs: 1. Device housing; 2. Control panel; 3. Feed inlet; 4. Discharge outlet; 5. Servo motor; 6. Lifting scraping seat; 7. Stirring rod; 8. Stirring fan blade; 9. Rack groove; 10. Rotating head; 11. Rack block; 12. First lead screw; 13. Transmission rod. Detailed Embodiment

[0021] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0022] Please refer to Figures 1-4 , the present utility model provides a technical solution: A device for preparing high-quality lithium carbonate from lithium precipitation mother liquor, including a device housing 1. A control panel 2 and a servo motor 5 are respectively arranged at the front and rear ends of the device housing 1. A main control chip is arranged inside the control panel 2. The control panel 2 and the servo motor 5 are electrically connected through the main control chip. Feed inlets 3 and discharge outlets 4 are respectively arranged on both sides of the top end and the bottom end of the device housing 1. Electronic valves are arranged inside the feed inlets 3 and the discharge outlets 4. A feed pipe is arranged at the rear end of the electronic valve, and the rear end of the feed pipe extends to the inside of the device housing 1, so as to control the servo motor 5 through the control panel 2;

[0023] Please refer to Figures 2-3, in this embodiment, lifting scraping seats 6 are provided at both the upper and lower ends of the inner wall of the device housing 1 in front of the servo motor 5. A first lead screw 12 is provided at the bottom end of one of the lifting scraping seats 6 inside the bottom end of the device housing 1. The top end of the first lead screw 12 penetrates through the two lifting scraping seats 6 and extends to the top end inside the device housing 1. A transmission rod 13 is provided at the front end of the servo motor 5. One end of the transmission rod 13 extends to the outside of the central position of the first lead screw 12. The transmission rod 13 is at the output end of the front end of the servo motor 5. The servo motor 5 is connected to the transmission rod 13 through a coupling. Bevel gears are provided at one end of the transmission rod 13 and at the intersection of the first lead screw 12 and the transmission rod 13. The transmission rod 13 and the first lead screw 12 are connected by bevel gear transmission. The first lead screw 12 is a double-threaded lead screw, and the threads at the upper and lower ends of the first lead screw 12 are symmetric with respect to the first lead screw 12. Thus, when the servo motor 5 drives the transmission rod 13 to rotate, since the transmission rod 13 and the first lead screw 12 are connected by bevel gear transmission, and the first lead screw 12 meshes with the two lifting scraping seats 6, the two lifting scraping seats 6 perform lifting movements on the inner wall of the device housing 1 during the rotation of the first lead screw 12, which is convenient for cleaning the inner wall of the device housing 1 through the two lifting scraping seats 6;

[0024] Please refer to Figures 2-4 , in this embodiment, a stirring rod 7 is provided inside the lifting scraping seat 6, and stirring blades 8 are provided on the outside of the stirring rod 7. There are multiple stirring rods 7. A transmission wheel is provided at the rear end of the stirring rod 7 inside the lifting scraping seat 6, and a transmission belt is provided inside the transmission wheel. The multiple stirring rods 7 are connected by transmission wheels and transmission belts. A rack groove 9 is provided on the inner wall of the device housing 1 in front of one of the stirring rods 7. One of the stirring rods 7 penetrates through the lifting scraping seat 6 and extends to the inside of the rack groove 9. A rotating head 10 is provided at the front end of one of the stirring rods 7 inside the rack groove 9. A rack block 11 is provided on the inner wall of the rack groove 9 on one side of the rotating head 10. The rotating head 10 and the rack block 11 mesh with each other. Thus, when the two lifting scraping seats 6 perform lifting movements, one of the stirring rods 7 inside the two lifting scraping seats 6 drives the other multiple stirring rods 7 to rotate simultaneously. Stirring blades 8 are provided on the outside of the multiple stirring rods 7. Therefore, the lithium precipitation mother liquor and the mixed medicament in the device housing 1 are fully stirred during the rotation of the multiple stirring rods 7.

[0025] When working, the lithium precipitation mother liquor and the mixed medicament are injected into the inner side of the device housing 1 through the feed port 3. After the power is turned on and the device is started, when the servo motor 5 at the rear end of the device housing 1 drives the transmission rod 13 to rotate, since the transmission rod 13 is connected to the first lead screw 12 through bevel gear transmission, and the first lead screw 12 meshes with the two lifting scraping seats 6, the two lifting scraping seats 6 perform lifting movements on the inner wall of the device housing 1 during the rotation of the first lead screw 12, facilitating the cleaning of the inner wall of the device housing 1 through the two lifting scraping seats 6. When the two lifting scraping seats 6 perform lifting movements, one of the stirring rods 7 inside the two lifting scraping seats 6 drives the other multiple stirring rods 7 to rotate simultaneously. Stirring blades 8 are provided on the outer sides of the multiple stirring rods 7, so that the lithium precipitation mother liquor and the mixed medicament in the device housing 1 are fully stirred during the rotation of the multiple stirring rods 7.

[0026] Through the above steps, the inner wall of the device housing 1 is cleaned by the two lifting scraping seats 6. During the cleaning process of the two lifting scraping seats 6, the lithium precipitation mother liquor and the mixed medicament in the device housing 1 are fully stirred during the rotation of the multiple stirring rods 7 inside the lifting scraping seats 6, solving the problems that the existing lithium precipitation mother liquor preparation equipment has low mixing efficiency of the raw materials for lithium mother liquor preparation and the added medicament, and the raw materials for lithium precipitation mother liquor preparation and the added medicament are likely to remain inside the preparation device, which is not convenient for subsequent cleaning.

Claims

1. An apparatus for preparing high-quality lithium carbonate from lithium precipitation mother liquor, comprising a device housing (1); characterized in that: At the front and rear ends of the device housing (1), a control panel (2) and a servo motor (5) are respectively provided. At the upper and lower ends of the inner wall of the device housing (1) in front of the servo motor (5), lifting scraping seats (6) are provided. Inside the lifting scraping seats (6), stirring rods (7) are provided. Outside the stirring rods (7), stirring fan blades (8) are provided. At the bottom end of one of the lifting scraping seats (6) at the bottom end inside the device housing (1), a first lead screw (12) is provided. The top end of the first lead screw (12) penetrates through the two lifting scraping seats (6) and extends to the top end inside the device housing (1). At the front end of the servo motor (5), a transmission rod (13) is provided. One end of the transmission rod (13) extends to the outside of the central position of the first lead screw (12).

2. The device for preparing high-quality lithium carbonate from the lithium precipitation mother liquor according to claim 1, characterized in that: Inside the control panel (2), a main control chip is provided. The control panel (2) is electrically connected to the servo motor (5) through the main control chip.

3. The device for preparing high-quality lithium carbonate from the lithium precipitation mother liquor according to claim 1, wherein: The transmission rod (13) is at the output end of the front end of the servo motor (5). The servo motor (5) is connected to the transmission rod (13) through a coupling.

4. The device for preparing high-quality lithium carbonate from the lithium precipitation mother liquor according to claim 1, characterized in that: At one end of the transmission rod (13) and at the intersection of the first lead screw (12) and the transmission rod (13), bevel gears are provided. The transmission rod (13) and the first lead screw (12) are connected by bevel gear transmission. The first lead screw (12) is a double-threaded lead screw, and the threads at the upper and lower ends of the first lead screw (12) are symmetric with the first lead screw (12) as the center.

5. The device for preparing high-quality lithium carbonate from the lithium precipitation mother liquor according to claim 1, characterized in that: There are multiple stirring rods (7). At the rear end of the stirring rods (7) inside the lifting scraping seats (6), transmission wheels are provided. Inside the transmission wheels, transmission belts are provided. The multiple stirring rods (7) are connected by transmission wheels and transmission belts.

6. The device for preparing high-quality lithium carbonate from the lithium precipitation mother liquor according to claim 1, wherein: In front of one of the stirring rods (7) on the inner wall of the device housing (1), a rack groove (9) is provided. One of the stirring rods (7) penetrates through the lifting scraping seat (6) and extends to the inside of the rack groove (9). At the front end of one of the stirring rods (7) inside the rack groove (9), a rotating head (10) is provided. On one side of the rotating head (10) on the inner wall of the rack groove (9), a rack block (11) is provided. The rotating head (10) and the rack block (11) mesh with each other.

7. The device for preparing high-quality lithium carbonate from the lithium precipitation mother liquor according to claim 1, characterized in that: On both sides of the top end of the device housing (1) and at the bottom end of the device housing (1), a feed inlet (3) and a discharge outlet (4) are respectively provided. Inside the feed inlet (3) and the discharge outlet (4), electronic valves are provided. At the rear end of the electronic valves, feed pipes are provided. The rear ends of the feed pipes extend to the inside of the device housing (1).

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