A continuous spray drying device for additive based on prelithiated lithium battery precursor production

Abstract

The utility model discloses a continuous type spray drying device for additive based on prelithiation lithium battery precursor production relates to additive drying technical field, and the utility model discloses a drying tank, and the upper surface of drying tank has the movable contact of sealing plate, and the lower surface of sealing plate is rotatoryly installed and is equipped with the rotating ring of two drainage holes, and rotating ring bottom rotatoryly sets up in the inside of drying tank, and the inner wall of rotating ring is fixedly installed with two collection box, and the drainage of collection box in and the drainage hole of rotating ring are linked together, and the bottom of two collection box is detachably installed with the scraping frame, and the side of two scraping frames away from each other and the inner wall movable contact of drying tank, the utility model discloses in scraping frame to the additive that adheres on the inner wall of drying tank is scraped, reduces the loss of additive, and then through setting installs screw rod and installs the installation and dismounting between collection box and scraping frame are realized, and the scraping frame is replaced conveniently.

Description

Technical Field

[0001] This utility model relates to the field of additive drying technology, specifically a continuous spray drying device for additives produced based on pre-lithiated lithium battery precursors. Background Technology

[0002] Lithium batteries are a type of electrochemical energy storage device that uses lithium as its core element and relies on the migration of lithium ions to store and release energy. They are widely used in consumer electronics, new energy vehicles, and energy storage systems.

[0003] Currently, lithium battery production requires the addition of additives, which are mostly ultrafine powders that need to be dried. Spray drying equipment is usually used for this process. However, during the drying process, some of the dried additives tend to adhere to the inner wall of the drying tank, leading to additive loss and affecting the drying effect. Furthermore, during the drying process, evaporated water vapor tends to accumulate at the top of the drying tank, where it can drip and affect the drying effect. To address these issues, the inventors have proposed a continuous spray drying device for additives produced based on pre-lithiated lithium battery precursors. Utility Model Content

[0004] To address the issues of additives adhering to the inner wall of the drying tank after drying and the easy re-aggregation and dripping of evaporated water vapor, the present invention aims to provide a continuous spray drying device for additives produced based on pre-lithiated lithium battery precursors.

[0005] To solve the above technical problems, this utility model adopts the following technical solution: a continuous spray drying device for additives in the production of pre-lithiated lithium battery precursors, comprising a drying tank, a sealing plate movably contacting the upper surface of the drying tank, four support columns fixedly installed on the outer surface of the drying tank, lifting columns slidably installed inside the support columns, and the top ends of the lifting columns fixedly connected to the sealing plate, a rotating ring with two drainage holes rotatably installed on the lower surface of the sealing plate, a toothed ring fixedly installed on the outer surface of the top plate of the rotating ring, an installation rod rotatably installed on one side of the sealing plate, a drive gear fixedly installed at the bottom end of the installation rod, and the drive gear meshing with the toothed ring, and a second motor fixedly installed on one side of the upper surface of the sealing plate, and... The bottom end of the output shaft of motor No. 2 is fixedly connected to the mounting rod, and the bottom of the rotating ring is rotatably set inside the drying tank. Two collection boxes are fixedly installed on the inner wall of the rotating ring, and the drain outlets in the collection boxes are connected to the drain holes of the rotating ring. Scraping racks are detachably installed on the bottom of the two collection boxes. Three mounting screws are movably inserted into the bottom side of the collection box, and one end of the mounting screws movably passes through the collection box and the scraping rack. Mounting nuts are threaded on the mounting screws, and the side of the mounting nuts is in movable contact with the side of the collection box. The sides of the two scraping racks that are far apart from each other are in movable contact with the inner wall of the drying tank. A scraper is fixedly installed on one side of the upper surface of the collection box, and the top of the scraper is in contact with the lower surface of the sealing plate.

[0006] Preferably, each of the four support columns has a drive screw rotatably installed inside it, and the drive screw is threadedly connected to a lifting column.

[0007] Preferably, a first bevel gear is fixedly installed at the bottom end of the drive screw, and a crossbar is rotatably installed inside the two support columns on the same side. A second bevel gear is fixedly installed at both ends of the crossbar, and the second bevel gear meshes with the first bevel gear. A motor is fixedly installed on the side of the two support columns on the left side, and one end of the output shaft of the motor is fixedly connected to the crossbar.

[0008] Preferably, a sealing plug is movably inserted into the outer surface of the rotating ring, and the sealing plug is movably inserted into the drain hole of the rotating ring.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. In this utility model, a scraping rack is set to scrape off the additives adhering to the inner wall of the drying tank, thereby reducing the loss of additives. Secondly, the installation screw and installation nut are set to realize the installation and disassembly between the collection box and the scraping rack, which facilitates the replacement of the scraping rack.

[0010] 2. In this utility model, a scraper is set to scrape off the water vapor that accumulates on the lower surface of the sealing plate, and a collection box is set to collect the scraped water vapor. Then, the collected water is discharged through a drain hole. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this utility model.

[0014] Figure 3 This is a schematic diagram of the cross-sectional structure of the support column of this utility model.

[0015] Figure 4 This is a schematic diagram of the cross-sectional structure of the sealing plate of this utility model.

[0016] Figure 5 This is a schematic diagram of the cross-sectional structure of the rotating ring of this utility model.

[0017] Figure 6 This is a cross-sectional structural diagram of the collection box of this utility model.

[0018] In the diagram: 1. Drying tank; 11. Support column; 12. Lifting column; 13. Drive screw; 14. Crossbar; 15. First bevel gear; 16. Second bevel gear; 17. Motor No. 1; 2. Sealing plate; 21. Motor No. 2; 22. Rotating ring; 23. Gear ring; 24. Drive gear; 25. Mounting rod; 26. Sealing plug; 3. Collection box; 31. Scraping frame; 32. Scraper; 33. Mounting screw; 34. Mounting nut. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example: Figure 1-6As shown, this utility model provides a continuous spray drying device for additives in the production of pre-lithiated lithium battery precursors, including a drying tank 1. A sealing plate 2 is movably contacted on the upper surface of the drying tank 1 to seal the drying tank 1. A rotating ring 22 with two drainage holes is rotatably installed on the lower surface of the sealing plate 2, and the bottom of the rotating ring 22 is rotatably disposed inside the drying tank 1. Two collection boxes 3 are fixedly installed on the inner wall of the rotating ring 22, and the drainage outlets in the collection boxes 3 are connected to the drainage holes of the rotating ring 22 to collect water vapor accumulated at the bottom of the sealing plate 2. Scraping racks 31 are detachably installed on the bottom of the two collection boxes 3, and the sides of the two scraping racks 31 that are far apart from each other are movably contacted with the inner wall of the drying tank 1 to scrape off the desiccant adhering to the inner wall of the drying tank 1. A scraper 32 is fixedly installed on one side of the upper surface of the collection box 3, and the top of the scraper 32 is in contact with the lower surface of the sealing plate 2.

[0021] Three mounting screws 33 are movably inserted into the bottom side of the collection box 3, with one end of each screw 33 passing through the collection box 3 and the scraper 31. A mounting nut 34 is threaded onto each screw 33, and the side of the mounting nut 34 is in contact with the side of the collection box 3 for mounting the scraper 31. In use, the top of the scraper 31 is inserted into the bottom of the collection box 3, and then the mounting screws 33 are inserted, so that one end of each screw passes through the collection box 3 and the scraper 31. The mounting nut 34 is then tightened, so that the side of the mounting nut 34 contacts the side of the collection box 3, completing the installation of the scraper 31 and the collection box 3.

[0022] By adopting the above technical solution, the mounting screw 33 and the mounting nut 34 can be used to install the scraper 31 and the collection box 3.

[0023] A toothed ring 23 is fixedly installed on the outer surface of the top plate of the rotating ring 22. An installation rod 25 is rotatably installed inside one side of the sealing plate 2. A drive gear 24 is fixedly installed at the bottom end of the installation rod 25, and the drive gear 24 meshes with the toothed ring 23 to drive the rotating ring 22 to rotate. In use, the rotation of the installation rod 25 drives the drive gear 24 to rotate, the rotation of the drive gear 24 drives the toothed ring 23 to rotate, and the rotation of the toothed ring 23 drives the rotating ring 22 to rotate.

[0024] By adopting the above technical solution, the mounting rod 25 can drive the rotating ring 22 to rotate.

[0025] A second motor 21 is fixedly installed on one side of the upper surface of the sealing plate 2, and the bottom end of the output shaft of the second motor 21 is fixedly connected to the mounting rod 25 to drive the mounting rod 25 to rotate. When in use, the second motor 21 is turned on to drive the mounting rod 25 to rotate.

[0026] By adopting the above technical solution, the No. 2 motor 21 can drive the mounting rod 25 to rotate.

[0027] Four support columns 11 are fixedly installed on the outer surface of the drying tank 1. Lifting columns 12 are slidably installed inside the support columns 11, and the top of the lifting column 12 is fixedly connected to the sealing plate 2 to drive the sealing plate 2 to move. In use, the movement of the lifting column 12 drives the sealing plate 2 to move.

[0028] By adopting the above technical solution, the lifting column 12 can drive the sealing plate 2 to move.

[0029] Each of the four support columns 11 has a drive screw 13 rotatably installed inside it, and a lifting column 12 is threadedly connected to the drive screw 13 to drive the lifting column 12 to move. In use, the lifting column 12 is moved by the rotation of the drive screw 13.

[0030] By adopting the above technical solution, the drive screw 13 can drive the lifting column 12 to move.

[0031] A first bevel gear 15 is fixedly installed at the bottom of the drive screw 13. A crossbar 14 is rotatably installed inside the two support columns 11 on the same side. A second bevel gear 16 is fixedly installed at both ends of the crossbar 14, and the second bevel gear 16 meshes with the first bevel gear 15. A first motor 17 is fixedly installed on the side of the two support columns 11 on the left side, and one end of the output shaft of the first motor 17 is fixedly connected to the crossbar 14 to drive the drive screw 13 to rotate. In use, the first motor 17 is turned on to drive the crossbar 14 to rotate. The rotation of the crossbar 14 drives the second bevel gear 16 to rotate. The rotation of the second bevel gear 16 drives the first bevel gear 15 to rotate. The rotation of the first bevel gear 15 drives the drive screw 13 to rotate.

[0032] By adopting the above technical solution, the crossbar 14 can drive the drive screw 13 to rotate.

[0033] Sealing plugs 26 are movably inserted into the outer surface of the rotating ring 22, and the sealing plugs 26 are movably inserted into the drain hole of the rotating ring 22 to seal the drain hole. When in use, the sealing plugs 26 are inserted into the drain hole, and the drain hole can be sealed by the sealing plugs 26.

[0034] By adopting the above technical solution, the sealing plug 26 can seal the drain hole.

[0035] Working principle: First, turn on motor 21 to drive the mounting rod 25 to rotate. The rotation of the mounting rod 25 drives the drive gear 24 to rotate, which in turn drives the gear ring 23 to rotate. The rotation of the gear ring 23 drives the rotating ring 22 to rotate, which in turn drives the collection box 3 to make a circular motion. The circular motion of the collection box 3 drives the scraping frame 31 to make a circular motion. At this time, the circular motion of the scraping frame 31 scrapes off the additives adhering to the inner wall of the drying tank 1. Secondly, the circular motion of the collection box 3 drives the scraper 32 to make a circular motion. At this time, the scraper 32 scrapes away the water vapor that has gathered on the lower surface of the sealing plate 2, and the scraped water vapor drips into the collection box 3 for collection. When it is necessary to drain the collected water, the sealing plug 26 is pulled out. At this time, the collected water is discharged into the drying tank 1 through the drain hole of the collection box 3 and the rotating ring 22. Then, turn on motor 17 to drive the crossbar 14 to rotate. The rotation of the crossbar 14 drives the second bevel gear 16 to rotate. The rotation of the second bevel gear 16 drives the first bevel gear 15 to rotate. The rotation of the first bevel gear 15 drives the drive screw 13 to rotate. The rotation of the drive screw 13 drives the lifting column 12 to move. The movement of the lifting column 12 drives the sealing plate 2 to move. The movement of the sealing plate 2 moves the collection box 3 and the scraper 31, causing the scraper 31 to move out of the drying tank 1. Finally, rotate the mounting nut 34 to disengage it from the mounting screw 33, and then pull out the mounting screw 33 to complete the disassembly of the scraper 31 and the collection box 3, making it convenient to replace the scraper 31.

[0036] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A continuous spray drying apparatus for additives produced based on pre-lithiated lithium battery precursors, comprising a drying tank (1), characterized in that: The upper surface of the drying tank (1) is in contact with a sealing plate (2). A rotating ring (22) with two drainage holes is rotatably installed on the lower surface of the sealing plate (2). The bottom of the rotating ring (22) is rotatably set inside the drying tank (1). Two collection boxes (3) are fixedly installed on the inner wall of the rotating ring (22). The drainage port in the collection box (3) is connected to the drainage hole of the rotating ring (22). The bottom of the two collection boxes (3) is detachably installed with a scraper (31). The sides of the two scrapers (31) that are far apart from each other are in contact with the inner wall of the drying tank (1). A scraper (32) is fixedly installed on one side of the upper surface of the collection box (3). The top of the scraper (32) is in contact with the lower surface of the sealing plate (2).

2. The continuous spray drying apparatus for additives produced based on pre-lithiated lithium battery precursors as described in claim 1, characterized in that, Three mounting screws (33) are movably inserted into the bottom of the side of the collection box (3), and one end of the mounting screw (33) movably passes through the collection box (3) and the scraper (31). The mounting screw (33) is threaded with a mounting nut (34), and the side of the mounting nut (34) is in contact with the side of the collection box (3).

3. The continuous spray drying apparatus for additives produced based on pre-lithiated lithium battery precursors as described in claim 1, characterized in that, A toothed ring (23) is fixedly installed on the outer surface of the top plate of the rotating ring (22), and an installation rod (25) is rotatably installed on one side of the sealing plate (2). A drive gear (24) is fixedly installed at the bottom end of the installation rod (25), and the drive gear (24) and the toothed ring (23) mesh with each other.

4. The continuous spray drying apparatus for additives produced based on pre-lithiated lithium battery precursors as described in claim 1, characterized in that, A second motor (21) is fixedly installed on one side of the upper surface of the sealing plate (2), and the bottom end of the output shaft of the second motor (21) is fixedly connected to the mounting rod (25).

5. The continuous spray drying apparatus for additives produced based on pre-lithiated lithium battery precursors as described in claim 1, characterized in that, Four support columns (11) are fixedly installed on the outer surface of the drying tank (1), and a lifting column (12) is slidably installed inside the support column (11), with the top of the lifting column (12) fixedly connected to the sealing plate (2).

6. The continuous spray drying apparatus for additives produced based on pre-lithiated lithium battery precursors as described in claim 5, characterized in that, Each of the four support columns (11) is rotatably mounted with a drive screw (13), and a lifting column (12) is threaded onto the drive screw (13).

7. The continuous spray drying apparatus for additives produced based on pre-lithiated lithium battery precursors as described in claim 6, characterized in that, The bottom end of the drive screw (13) is fixedly installed with a first bevel gear (15), and a crossbar (14) is rotatably installed inside the two support columns (11) on the same side. The two ends of the crossbar (14) are fixedly installed with second bevel gears (16), and the second bevel gears (16) and the first bevel gears (15) mesh with each other. The sides of the two support columns (11) on the left side are fixedly installed with a No. 1 motor (17), and one end of the output shaft of the No. 1 motor (17) is fixedly connected to the crossbar (14).

8. The continuous spray drying apparatus for additives produced based on pre-lithiated lithium battery precursors as described in claim 1, characterized in that, The outer surface of the rotating ring (22) is movably fitted with a sealing plug (26), and the sealing plug (26) is movably fitted inside the drain hole of the rotating ring (22).

Images