Drying device for lithium hydroxide

Abstract

The utility model relates to the technical field of lithium hydroxide drying, in particular to a drying device for lithium hydroxide, which comprises a drying box, the top surface of the drying box is communicated with a feed hopper, the lower end of the feed hopper is rotatably connected with a rotating shaft, the rotating shaft is fixedly connected with a sealing discharge block, and the inner wall of the lower end of the feed hopper is fixedly connected with a triangular block. The bottom face of the triangular block makes contact with the top face of the sealing discharging block, a first servo motor is installed on the side wall of the feeding hopper through an installation base, an output shaft of the first servo motor is coaxially connected with the outer wall of one side of the rotating shaft, a magnetron body is installed at the upper end of the left wall of the drying box through an installation base, and the magnetron body communicates with a wave guide pipe. The wave guide pipe penetrates through the outer wall of the drying box and extends into the drying box. According to the scheme, the uniformity of material distribution in the drying box is ensured, it is ensured that lithium hydroxide uniformly absorbs microwaves for heating, the drying efficiency and drying uniformity are effectively improved, and the uniformity and high efficiency of the drying process are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium hydroxide drying, in particular to a drying device for lithium hydroxide. Background Art

[0002] Lithium hydroxide is mainly used to prepare lithium salts and lithium-based greases, electrolytes for alkaline batteries, lithium bromide refrigeration machine absorption liquids, etc. With the advancement of science and technology and the development of the new energy industry, the demand for lithium hydroxide has gradually increased, and the requirements for drying equipment have also become higher and higher. Continuously developing and optimizing drying equipment for lithium hydroxide, improving drying efficiency, reducing energy consumption and costs, and ensuring product quality and safety are important directions for current technological development.

[0003] After searching, the Chinese utility model patent with publication number CN205066371U is named as a special dryer for lithium hydroxide. This device breaks the lithium hydroxide crystals by hitting them with a rotating shaft with a hammer in the feed hopper, and sets three groups of sieves with increasing lengths and decreasing sieve hole diameters from top to bottom in the shell, so that the lithium hydroxide crystal particles are gradually reduced in size. The particles are fully in contact with the hot air during the falling process, which greatly improves the drying efficiency and quality.

[0004] However, it was found during use that the original form of the lithium hydroxide before drying was destroyed, which could easily have an adverse effect on the subsequent drying effect and performance. When screening through three sets of sieves, some lithium hydroxide could easily clog the sieve holes, affecting the drying effect and efficiency of the lithium hydroxide, resulting in poor drying uniformity, affecting the quality of the final product, and being unfavorable for the drying and use of lithium hydroxide. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a drying device for lithium hydroxide, which solves the technical problem in the prior art that part of the lithium hydroxide is prone to block the sieve holes when screening through three groups of sieves, affecting the drying effect and efficiency of the lithium hydroxide, resulting in poor drying uniformity, affecting the quality of the final product, and being unfavorable for the drying and use of the lithium hydroxide.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a drying device for lithium hydroxide, comprising a drying box, the top surface of the drying box is connected to a feed hopper, the lower end of the feed hopper is rotatably connected to a rotating shaft, a sealing discharge block is fixedly connected to the rotating shaft, a triangular block is fixedly connected to the inner wall of the lower end of the feed hopper, the bottom surface of the triangular block is in contact with the top surface of the sealing discharge block, a first servo motor is installed on the side wall of the feed hopper through a mounting seat, and the output shaft of the first servo motor is coaxially connected to the outer wall of one side of the rotating shaft;

[0007] A magnetron body is installed on the upper end of the left wall of the drying box through a mounting seat, a waveguide is connected to the magnetron body, and the waveguide passes through the outer wall of the drying box and extends to the interior, a stirring rod is provided inside the drying box, a semicircular block is rotatably connected to the lower end of the interior of the drying box, a groove is provided on the top surface of the semicircular block, an inclined material guide block is fixedly connected to the bottom surface of the interior of the drying box, a discharge port is provided at the lower end of the right wall of the drying box, and an exhaust pipe with a valve is connected to the upper end of the right wall of the drying box.

[0008] Preferably, a rotating rod is rotatably connected to the upper end of the drying box, a second servo motor is installed on the top surface of the drying box through a front mounting seat, an output shaft of the second servo motor is coaxially connected to the rotating rod, the lower end of the rotating rod passes through the drying box and extends to the interior, and a microwave agitator is sleeved on the outer peripheral wall of the lower end of the rotating rod extending to the interior.

[0009] Through the above technical solution, the output shaft of the second servo motor drives the rotating rod and the microwave stirrer to rotate synchronously, so that the microwave stirrer generates a rotating magnetic field inside the drying box, so that the lithium hydroxide can evenly absorb microwaves for heating.

[0010] Preferably, the inner wall of the drying box is symmetrically structured and fixedly connected with two sealing blocks, and the inner walls of the two sealing blocks are both slidably connected with the outer wall of the semicircular block.

[0011] Through the above technical solution, the outer wall of the semicircular block and the outer wall of the sealing block are in frictional contact to achieve sealing.

[0012] Preferably, a circular ring sleeve is fixedly connected to the middle part of the upper end of the semicircular block, the outer wall of the circular ring sleeve is rotatably connected to the drying box, a third servo motor is installed on the left wall of the drying box through a mounting seat, and the output shaft of the third servo motor is coaxially connected to one of the outer walls of the circular ring sleeve.

[0013] Through the above technical solution, the dried lithium hydroxide is slid out from the inside of the groove to the top surface of the inclined material guide block and slides to the right end.

[0014] Preferably, the outer walls at both ends of the stirring rod are slidably connected to the inner wall of the annular sleeve, one end of the stirring rod passes through one of the annular sleeves and extends to the outside, and a rotating motor is installed on the right wall of the drying box through a mounting seat, and the output shaft of the rotating motor is coaxially connected to the stirring rod extending to the outside.

[0015] Preferably, two stirring blades are fixedly connected to the stirring rod in a centrally symmetrical structure, and the bottom surfaces of the stirring blades are slidably connected to the groove walls.

[0016] Through the above technical solution, the output shaft of the rotating motor drives the stirring rod to rotate along the annular sleeve, so that the stirring rod drives the stirring blade to rotate, thereby turning the lithium hydroxide inside the groove.

[0017] Preferably, the outer wall of the semicircular block is in a symmetrical structure and contacts two ceramic fiber electric heating modules, both ends of the ceramic fiber electric heating modules are installed on the inner wall of the drying box, and the ceramic fiber electric heating modules are slidably connected to the outer wall of the semicircular block.

[0018] Through the above technical solution, the semicircular block is heated by the ceramic fiber electric heating module, so that the moisture in the lithium hydroxide inside the semicircular block is heated and dried.

[0019] Beneficial effects of the utility model:

[0020] 1. The lithium hydroxide to be dried is transported to the inside of the feed hopper through external equipment, and the output shaft of the first servo motor drives the rotating shaft to rotate along the feed hopper, so that the sealing discharge block is separated from the triangular block, and the lithium hydroxide falls into the drying box from the gap between the sealing discharge block and the triangular block, which is convenient for controlling the feeding of lithium hydroxide, avoiding material waste, ensuring the uniformity of material distribution in the drying box, and improving the drying efficiency. After the transportation is completed, the sealing discharge block rotates to the initial position to seal the inside of the drying box.

[0021] 2. After the lithium hydroxide entering the drying box passes through the obstruction of the sealing block and falls into the groove inside the semicircular block, the outer wall of the semicircular block and the outer wall of the sealing block are in friction contact and sealed, and then the microwave is transported to the inside of the drying box through the waveguide by the magnetron body, and the rotating rod and the microwave stirrer are driven to rotate synchronously by the output shaft of the second servo motor, so that the microwave stirrer generates a rotating magnetic field inside the drying box, so that the lithium hydroxide can evenly absorb microwaves for heating, and transfer heat to the lithium hydroxide, so that the water therein evaporates, and the evaporated water vapor is discharged to the outside through the exhaust pipe. After the drying is completed, the annular sleeve is driven by the output shaft of the third servo motor to rotate along the drying box, so that the semicircular block is turned over, and the dried lithium hydroxide is slid from the inside of the groove to the top surface of the inclined material guide block and slide to the right end, and then discharged from the discharge port to the outside for collection, completing the drying operation of the lithium hydroxide, repeating the above steps to continue drying, ensuring that the lithium hydroxide evenly absorbs microwaves for heating, effectively improving the drying efficiency and drying uniformity, avoiding the loss of heat and the entry of external impurities during the drying process, and ensuring the drying effect and product quality.

[0022] 3. The output shaft of the rotating motor drives the stirring rod to rotate along the annular sleeve, so that the stirring rod drives the stirring blade to rotate, and the lithium hydroxide inside the groove is turned over, which improves the drying and heating efficiency, makes the drying and heating more uniform, improves the drying and heating efficiency, ensures the uniformity and efficiency of the drying process, avoids the problem of uneven drying caused by material accumulation, and improves the drying quality.

[0023] 4. While the magnetron body is performing microwave heating, the semicircular block is heated by the ceramic fiber electric heating module, so that the moisture in the lithium hydroxide inside the semicircular block is heated and dried. The two different heating and drying methods improve the drying efficiency of the lithium hydroxide, reduce the residual moisture inside the lithium hydroxide, further improve the drying quality, and facilitate the drying and use of the lithium hydroxide. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 This is a cross-sectional view of the drying box structure of the utility model;

[0026] Figure 3 This is a cross-sectional view of the feed hopper structure of the utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the microwave stirrer of the utility model;

[0028] Figure 5 This is a schematic diagram of the stirring blade structure of the utility model;

[0029] Figure 6 It is a schematic diagram of the assembly of the semicircular block structure of the utility model.

[0030] In the figure: 1. drying box; 2. feed hopper; 3. rotating shaft; 4. sealing discharge block; 5. triangular block; 6. first servo motor; 7. magnetron body; 8. waveguide; 9. stirring rod; 10. semicircular block; 11. groove; 12. material guide block; 13. discharge port; 14. rotating rod; 15. second servo motor; 16. microwave stirrer; 17. exhaust pipe; 18. circular ring; 19. third servo motor; 20. rotating motor; 21. stirring blade; 22. sealing block; 23. ceramic fiber electric heating module. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0032] Embodiment 1

[0033] like Figure 1 to Figure 5As shown, this embodiment provides a drying device for lithium hydroxide, including a drying box 1, the top surface of the drying box 1 is connected to a feed hopper 2, the lower end of the feed hopper 2 is rotatably connected to a rotating shaft 3, a sealing discharge block 4 is fixedly connected to the rotating shaft 3, a triangular block 5 is fixedly connected to the inner wall of the lower end of the feed hopper 2, the bottom surface of the triangular block 5 is in contact with the top surface of the sealing discharge block 4, a first servo motor 6 is installed on the side wall of the feed hopper 2 through a mounting seat, and the output shaft of the first servo motor 6 is coaxially connected to the outer wall of one side of the rotating shaft 3;

[0034] A magnetron body 7 is installed on the upper end of the left wall of the drying box 1 through a mounting seat, and a waveguide 8 is connected to the magnetron body 7. The waveguide 8 passes through the outer wall of the drying box 1 and extends to the inside. A stirring rod 9 is provided inside the drying box 1. A semicircular block 10 is rotatably connected to the lower end of the drying box 1. A groove 11 is provided on the top surface of the semicircular block 10. An inclined material guide block 12 is fixedly connected to the bottom surface of the drying box 1. A discharge port 13 is provided at the lower end of the right wall of the drying box 1, and an exhaust pipe 17 with a valve is connected to the upper end of the right wall of the drying box 1.

[0035] A rotating rod 14 is rotatably connected to the upper end of the drying box 1, and a second servo motor 15 is installed on the top surface of the drying box 1 through a front end mounting seat. The output shaft of the second servo motor 15 is coaxially connected to the rotating rod 14. The lower end of the rotating rod 14 passes through the drying box 1 and extends to the interior. A microwave stirrer 16 is sleeved on the outer peripheral wall of the lower end of the rotating rod 14 extending to the interior. The output shaft of the second servo motor 15 drives the rotating rod 14 and the microwave stirrer 16 to rotate synchronously, so that the microwave stirrer 16 generates a rotating magnetic field inside the drying box 1, so that the lithium hydroxide can evenly absorb microwaves for heating.

[0036] The inner wall of the drying box 1 is symmetrically structured and fixedly connected with two sealing blocks 22. The inner walls of the two sealing blocks 22 are both slidably connected with the outer wall of the semicircular block 10. The outer wall of the semicircular block 10 is in frictional contact with the outer wall of the sealing block 22 for sealing.

[0037] A circular ring sleeve 18 is fixedly connected to the middle part of the upper end of the semicircular block 10, and the outer wall of the circular ring sleeve 18 is rotatably connected to the drying box 1. A third servo motor 19 is installed on the left wall of the drying box 1 through a mounting seat, and the output shaft of the third servo motor 19 is coaxially connected to the outer wall of one of the circular ring sleeves 18; the dried lithium hydroxide is slid out from the inside of the groove 11 to the top surface of the inclined guide block 12 and slides to the right end.

[0038] When in use, firstly, the lithium hydroxide to be dried is transported to the inside of the feed hopper 2 through an external device, and the output shaft of the first servo motor 6 drives the rotating shaft 3 to rotate along the feed hopper 2, so that the sealing discharge block 4 is separated from the triangular block 5, and the lithium hydroxide falls into the drying box 1 from the gap between the sealing discharge block 4 and the triangular block 5, so as to facilitate the control of the feeding of lithium hydroxide, avoid material waste, ensure the uniformity of material distribution in the drying box 1, and improve the drying efficiency. After the transportation is completed, the sealing discharge block 4 rotates to the initial position to seal the inside of the drying box 1;

[0039] After the lithium hydroxide entering the drying box 1 passes through the obstruction of the sealing block 22 and falls into the groove 11 inside the semicircular block 10, the outer wall of the semicircular block 10 and the outer wall of the sealing block 22 are in friction contact and sealed, and then the microwave is transmitted to the drying box 1 through the waveguide 8 by the magnetron body 7, and the rotating rod 14 and the microwave stirrer 16 are driven to rotate synchronously by the output shaft of the second servo motor 15, so that the microwave stirrer 16 generates a rotating magnetic field inside the drying box 1, so that the lithium hydroxide can evenly absorb the microwave for heating, and the heat is transferred to the lithium hydroxide, so that the water therein evaporates, and the evaporated water vapor passes through the exhaust pipe 17 is discharged to the outside. After drying is completed, the output shaft of the third servo motor 19 drives the annular sleeve 18 to rotate along the drying box 1, so that the semicircular block 10 is turned over, and the dried lithium hydroxide is slid out from the inside of the groove 11 to the top surface of the inclined guide block 12 and slides to the right end, and is discharged from the discharge port 13 to the outside for collection. The drying operation of lithium hydroxide is completed. Repeating the above steps to continue drying ensures that the lithium hydroxide uniformly absorbs microwaves for heating, effectively improves the drying efficiency and drying uniformity, avoids the loss of heat and the entry of external impurities during the drying process, and ensures the drying effect and product quality.

[0040] Embodiment 2

[0041] like Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, on the basis of Example 1, the outer walls at both ends of the stirring rod 9 are slidably connected to the inner wall of the annular sleeve 18, one end of the stirring rod 9 passes through one of the annular sleeves 18 and extends to the outside, and a rotating motor 20 is installed on the right wall of the drying box 1 through a mounting seat, and the output shaft of the rotating motor 20 is coaxially connected to the stirring rod 9 extending to the outside, and two stirring blades 21 are fixedly connected to the stirring rod 9 in a centrally symmetrical structure, and the bottom surface of the stirring blade 21 is slidably connected to the groove wall of the groove 11; the stirring rod 9 is driven to rotate along the annular sleeve 18 by the output shaft of the rotating motor 20, so that the stirring rod 9 drives the stirring blade 21 to rotate, and the lithium hydroxide inside the groove 11 is turned over.

[0042] The outer wall of the semicircular block 10 is symmetrically structured and contacts with two ceramic fiber electric heating modules 23. Both ends of the ceramic fiber electric heating module 23 are installed on the inner wall of the drying box 1. The ceramic fiber electric heating module 23 is slidably connected to the outer wall of the semicircular block 10. The semicircular block 10 is heated by the ceramic fiber electric heating module 23, so that the moisture in the lithium hydroxide inside the semicircular block 10 is heated and dried.

[0043] During the drying process, the output shaft of the rotating motor 20 drives the stirring rod 9 to rotate along the annular sleeve 18, so that the stirring rod 9 drives the stirring blade 21 to rotate, and the lithium hydroxide inside the groove 11 is turned over, thereby improving the drying and heating efficiency, making the drying and heating more uniform, improving the drying and heating efficiency, ensuring the uniformity and efficiency of the drying process, avoiding the problem of uneven drying caused by material accumulation, and improving the drying quality.

[0044] While the magnetron body 7 is performing microwave heating, the semicircular block 10 is heated by the ceramic fiber electric heating module 23, so that the moisture in the lithium hydroxide inside the semicircular block 10 is heated and dried. The two different heating and drying methods improve the drying efficiency of the lithium hydroxide, reduce the residual moisture inside the lithium hydroxide, further improve the drying quality, and facilitate the drying and use of the lithium hydroxide.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A drying device for lithium hydroxide, comprising a drying box (1), characterized in that: The top surface of the drying box (1) is connected to a feed hopper (2), the lower end of the feed hopper (2) is rotatably connected to a rotating shaft (3), a sealing discharge block (4) is fixedly connected to the rotating shaft (3), a triangular block (5) is fixedly connected to the inner wall of the lower end of the feed hopper (2), the bottom surface of the triangular block (5) is in contact with the top surface of the sealing discharge block (4), a first servo motor (6) is installed on the side wall of the feed hopper (2) through a mounting seat, and the output shaft of the first servo motor (6) is coaxially connected to the outer wall of one side of the rotating shaft (3); A magnetron body (7) is mounted on the upper end of the left wall of the drying box (1) through a mounting seat, a waveguide (8) is connected to the magnetron body (7), and the waveguide (8) passes through the outer wall of the drying box (1) and extends to the interior. A stirring rod (9) is arranged inside the drying box (1), a semicircular block (10) is rotatably connected to the lower end of the interior of the drying box (1), a groove (11) is provided on the top surface of the semicircular block (10), an inclined material guide block (12) is fixedly connected to the bottom surface of the interior of the drying box (1), a material discharge port (13) is provided at the lower end of the right wall of the drying box (1), and an exhaust pipe (17) with a valve is connected to the upper end of the right wall of the drying box (1).

2. The drying device for lithium hydroxide according to claim 1, characterized in that: The upper end of the drying box (1) is rotatably connected to a rotating rod (14); a second servo motor (15) is mounted on the top surface of the drying box (1) via a front mounting seat; an output shaft of the second servo motor (15) is coaxially connected to the rotating rod (14); the lower end of the rotating rod (14) passes through the drying box (1) and extends to the interior; a microwave stirrer (16) is sleeved on the outer peripheral wall of the lower end of the rotating rod (14) extending to the interior.

3. The drying device for lithium hydroxide according to claim 1, characterized in that: The inner wall of the drying box (1) is symmetrically structured and fixedly connected with two sealing blocks (22), and the inner walls of the two sealing blocks (22) are both slidably connected with the outer wall of the semicircular block (10).

4. The drying device for lithium hydroxide according to claim 1, characterized in that: The middle part of the upper end of the semicircular block (10) is fixedly connected with a circular ring sleeve (18), the outer wall of the circular ring sleeve (18) is rotatably connected to the drying box (1), and a third servo motor (19) is installed on the left wall of the drying box (1) through a mounting seat, and the output shaft of the third servo motor (19) is coaxially connected to the outer wall of one of the circular ring sleeves (18).

5. The drying device for lithium hydroxide according to claim 4, characterized in that: The outer walls of both ends of the stirring rod (9) are slidably connected to the inner walls of the circular ring sleeve (18), and one end of the stirring rod (9) passes through one of the circular ring sleeves (18) and extends to the outside.

6. The drying device for lithium hydroxide according to claim 5, characterized in that: A rotating motor (20) is mounted on the right wall of the drying box (1) via a mounting seat, and an output shaft of the rotating motor (20) is coaxially connected to a stirring rod (9) extending to the outside.

7. The drying device for lithium hydroxide according to claim 6, characterized in that: The stirring rod (9) is fixedly connected with two stirring blades (21) in a centrally symmetrical structure, and the bottom surfaces of the stirring blades (21) are slidably connected to the groove walls of the groove (11).

8. The drying device for lithium hydroxide according to claim 1, characterized in that: The outer wall of the semicircular block (10) is symmetrically structured and contacts two ceramic fiber electric heating modules (23). Both ends of the ceramic fiber electric heating module (23) are mounted on the inner wall of the drying box (1). The ceramic fiber electric heating module (23) is slidably connected to the outer wall of the semicircular block (10).

Images