A drying apparatus for battery powder preparation

Abstract

This utility model relates to the field of battery powder preparation technology, and in particular to a drying device for battery powder preparation, including a shell and a heating cylinder. The heating cylinder has uniformly distributed filter holes, and an aperture adjustment mechanism is provided outside the heating cylinder for adjusting the aperture of the filter holes. The aperture adjustment mechanism can open or close the filter holes. The aperture adjustment mechanism includes an adjustment cylinder rotatably disposed outside the heating cylinder and a rotary drive assembly for driving the adjustment cylinder to rotate. The adjustment cylinder has uniformly distributed adjustment holes adapted to the filter holes. Both the filter holes and the adjustment holes are teardrop-shaped. The width of the filter holes decreases counterclockwise along the rotation direction of the heating cylinder, and the width of the adjustment holes decreases clockwise along the rotation direction of the heating cylinder. The filter holes and adjustment holes partially overlap to form a material orifice. This drying device uses an adjustment cylinder rotatably disposed outside the heating cylinder, and utilizes the cooperation between the filter holes on the heating cylinder and the adjustment holes on the adjustment cylinder to adjust the discharge orifice diameter, meeting the sieving requirements of different particle sizes.

Description

Technical Field

[0001] This utility model relates to the field of battery powder preparation technology, and in particular to a drying device for battery powder preparation. Background Technology

[0002] In the battery manufacturing industry, the preparation of battery powder is a crucial step, as its quality and performance directly affect the overall performance and lifespan of the battery. Drying and sieving are two important processes in battery powder preparation, requiring efficient and precise equipment to ensure product quality.

[0003] Currently, traditional battery powder drying equipment primarily functions only to dry battery powder, removing moisture to meet the requirements of subsequent production processes. However, these devices often lack the ability to effectively sieve battery powder particles. In actual production, different types and applications of batteries have different requirements for the particle size of battery powder. For example, batteries for small electronic products may require smaller and more uniform particle sizes to improve energy density and charge / discharge performance; while large energy storage batteries may have relatively more lenient requirements for particle size, but still require grading of battery powder of different sizes to optimize battery performance and cost.

[0004] Most existing screening devices use screens with a single fixed aperture, which can only separate battery powder of one or a few particle size grades. This is far from meeting the production needs that require battery powder of multiple particle size grades. Moreover, when it is necessary to change the particle size grade to be screened, the screen often needs to be replaced, which is cumbersome, time-consuming, and labor-intensive, affecting the continuity and efficiency of production. Utility Model Content

[0005] To address the problem of limited sieve aperture size in existing systems, this invention provides a drying device for battery powder preparation. An adjusting cylinder is rotatably mounted outside the heating cylinder. By utilizing the filter holes on the heating cylinder and the adjusting holes on the adjusting cylinder, the discharge aperture can be adjusted to meet the sieve requirements for different particle sizes.

[0006] This utility model provides a drying device for battery powder preparation, including a shell and a heating cylinder rotatably disposed within the shell. The heating cylinder has uniformly distributed filter holes, and an aperture adjustment mechanism is provided outside the heating cylinder for adjusting the aperture size of the filter holes. The aperture adjustment mechanism can open or close the filter holes. By rotating the aperture adjustment mechanism located outside the heating cylinder, the aperture size of the filter holes on the heating cylinder can be adjusted to meet the sieving requirements of different particle sizes.

[0007] Furthermore, the aperture adjustment mechanism includes an adjustment cylinder rotatably mounted outside the heating cylinder and a rotary drive assembly for driving the adjustment cylinder to rotate. The adjustment cylinder is evenly distributed with adjustment holes adapted to the filter holes. The filter holes can be partially opened or completely blocked through the adjustment holes on the adjustment cylinder, making the adjustment method simple.

[0008] Furthermore, both the filter holes and the regulating holes are teardrop-shaped. The width of the filter holes decreases counterclockwise along the rotation direction of the heating cylinder, while the width of the regulating holes decreases clockwise along the rotation direction of the heating cylinder. The filter holes and regulating holes partially overlap to form a material hole. Below the material hole is a material box for collecting the screened battery powder. The particle size can be adjusted by regulating the degree of overlap, and the battery powder screened out of the material hole falls into the material box for collection.

[0009] Furthermore, the rotary drive assembly includes a servo motor and a worm gear. The servo motor is fixedly mounted on the edge of the heating cylinder via a bracket, and the output end of the servo motor is fixedly connected to the worm gear. A worm wheel ring, meshing with the worm gear, is provided on the edge of the adjusting cylinder. By driving the worm gear to rotate through the servo motor, the meshing worm wheel ring rotates, thereby causing the adjusting cylinder to rotate relative to the heating cylinder, thus adjusting the size of the screening orifice.

[0010] Furthermore, the heating cylinder has a central column, and a drive motor is fixedly installed inside the shell. The output shaft of the drive motor is fixedly connected to the end of the central column. The drive motor drives the central column to rotate, thereby driving the heating cylinder to rotate and heat.

[0011] Furthermore, the drive motor is located at one end of the heating cylinder, and the other end of the heating cylinder is an open end, which is rotatably connected to a baffle. The baffle at the open end creates a closed heating space inside the heating cylinder, which facilitates the drying effect of the battery powder inside the cylinder.

[0012] Furthermore, a feeding assembly and a discharging assembly are fixedly connected to the housing. The feeding assembly is fixedly connected to the upper end of the baffle and is used to add the battery powder to be dried into the heating cylinder. The discharging assembly is fixedly connected to the lower end of the baffle and is used to discharge the dried battery powder from the heating cylinder. The position of the baffle can be fixed by the feeding assembly and the discharging assembly fixedly set in the housing, without affecting the rotation of the heating cylinder.

[0013] Furthermore, the feeding assembly is a feeding pipe, and a feeding hopper is provided at the upper end of the shell. One end of the feeding pipe is connected to the feeding hopper, and the other end is connected to a baffle. The discharging assembly is a discharging pipe, with one end connected to the baffle and the other end extending to the outside of the shell. The battery powder in the feeding hopper is completely introduced into the heating cylinder through the feeding pipe. After drying, the unscreened battery powder in the heating cylinder is completely discharged.

[0014] Furthermore, several partitions are fixedly installed around the central column, and these partitions are fixedly connected to the inner wall of the heating cylinder to form several independent heating chambers. When the heating cylinder rotates, the battery powder placed in the heating chamber will tumble, making the heating more uniform.

[0015] Furthermore, the heating chamber includes a first chamber and a second chamber spaced apart. The width of the first chamber decreases from the end near the baffle to the end away from the baffle, and the width of the second chamber decreases from the end away from the baffle to the end near the baffle. The baffle is not parallel to the central column. The inclined baffle makes the side walls of both the first and second chambers inclined. During the rotation of the heating cylinder, the battery powder is moved back and forth by the baffle, further making the heating more uniform.

[0016] The beneficial effects of this utility model are as follows:

[0017] This utility model provides a drying device for battery powder preparation. By rotating an adjustment cylinder with adjustment holes outside a heating cylinder with filter holes, the particle size of the output can be adjusted by the relative cooperation between the filter holes and the adjustment holes. This not only improves the drying effect of battery powder, but also meets the screening requirements of different particle sizes, and easily achieves multi-stage screening. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the external structure of the drying device;

[0020] Figure 2 This is a schematic diagram of the internal structure of the drying device;

[0021] Figure 3 This is a schematic diagram of the interior of the heating cylinder at the first angle;

[0022] Figure 4 This is a schematic diagram of the interior of the heating cylinder at the second angle;

[0023] Figure 5 This is a schematic diagram showing the connection between the filter hole and the adjustment hole;

[0024] Figure 6 yes Figure 2 Enlarged view of point A in the image;

[0025] Figure 7 yes Figure 4 Enlarged view of point B in the image;

[0026] In the diagram: 1. Shell, 11. Feed hopper, 12. Feed pipe, 13. Discharge pipe, 2. Heating cylinder, 21. Filter hole, 22. Central column, 23. Baffle, 24. Drive motor, 25. Baffle, 26. First chamber, 27. Second chamber, 3. Adjusting cylinder, 31. Adjusting hole, 4. Material box, 5. Rotary drive assembly, 51. Servo motor, 52. Worm gear, 53. Worm wheel ring, 6. Heating wire. Detailed Implementation

[0027] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0028] To achieve adjustment of the sieve aperture, a drying device for battery powder preparation is designed, such as... Figure 1 and 2 As shown, the device includes a housing 1 and a heating cylinder 2 rotatably disposed within the housing 1. Filter holes 21 are evenly distributed on the heating cylinder 2. An aperture adjustment mechanism is provided on the outside of the heating cylinder 2 to adjust the aperture of the filter holes 21. The aperture adjustment mechanism can open or close the filter holes 21. When the aperture adjustment mechanism is adjusted to the closed state, the heating cylinder 2 acts as a sealed hollow structure, with a heating mechanism inside for heating and drying the material inside the cylinder, thus completing the drying of the battery powder. After drying, the aperture adjustment mechanism is adjusted back to the open state of the filter holes 21, and the degree of opening can be adjusted according to the screening requirements. The material inside the cylinder is discharged from the filter holes 21, completing the screening.

[0029] Specifically, such as Figure 4 , 5 As shown in Figure 7, the aperture adjustment mechanism includes an adjustment cylinder 3 rotatably mounted outside the heating cylinder 2 and a rotary drive assembly 5 for driving the adjustment cylinder 3 to rotate. The adjustment cylinder 3 is evenly distributed with adjustment holes 31 that match the filter holes 21. The rotary drive assembly 5 drives the adjustment cylinder 3 to rotate outside the heating cylinder 2 to adjust the degree of obstruction of the filter holes 21, i.e., to adjust the size of the screening holes. Both the filter holes 21 and the adjustment holes 31 are teardrop-shaped. The width of the filter holes 21 decreases counterclockwise along the rotation direction of the heating cylinder 2, and the width of the adjustment holes 31 decreases clockwise along the rotation direction of the heating cylinder 2. The overlapping portion of the filter holes 21 and the adjustment holes 31 forms a material hole. The width of the filter hole 21 and the adjustment hole 31 is the size of the filter hole 21 and the adjustment hole 31 along the axis of the heating cylinder 2. Both the filter hole 21 and the adjustment hole 31 include a first semicircular region and a second semicircular region. The diameter of the first semicircular region is larger than the diameter of the second semicircular region. A connected isosceles trapezoidal region is provided between the first semicircular region and the second semicircular region. The first semicircular region and the second semicircular region abut against the upper and lower sides of the isosceles trapezoidal region, respectively.

[0030] To facilitate the collection of screened materials, a material box 4 for holding screened battery powder is provided below the material hole. The material box 4 is a storage drawer that is slidably set at the bottom of the housing 1. The battery powder particles discharged through the screening material hole will automatically fall into the storage drawer.

[0031] Specifically, such as Figure 4 and 6 As shown, the rotary drive assembly 5 includes a servo motor 51 and a worm gear 52. The servo motor 51 is fixedly mounted on the edge of the heating cylinder 2 via a bracket. The output end of the servo motor 51 is fixedly connected to the worm gear 52. A worm wheel ring 53, meshing with the worm gear 52, is provided on the edge of the adjusting cylinder 3. By starting the servo motor 51, the worm gear 52 can be driven to rotate. When the worm gear 52 rotates, it pushes the worm wheel ring 53 to drive the adjusting cylinder 3 to rotate. After rotation, the adjusting cylinder 3 can be locked by the cooperation of the worm gear 52 and the worm wheel ring 53. The servo motor 51 can be electrically connected via a conductive slip ring. A conductive slip ring is a precision electromechanical component used to transmit electrical energy, signals, and data between rotating and stationary parts. It solves the winding problem in rotating equipment when rotating continuously with 360° unrestricted rotation.

[0032] The heating cylinder 2 has a central column 22, and a drive motor 24 is fixedly installed inside the shell 1. The output shaft of the drive motor 24 is fixedly connected to the end of the central column 22. The drive motor 24 drives the heating cylinder 2 to rotate, heating the material inside the cylinder. The drive motor 24 is located at one end of the heating cylinder 2, and the other end of the heating cylinder 2 is an open end, which is rotatably connected to a baffle 25. The baffle 25 makes the interior of the heating cylinder 2 a sealed hollow structure, minimizing heat loss, reducing energy consumption when heating battery powder, and improving heating and drying efficiency.

[0033] like Figure 2 As shown, for easy feeding and discharging, a feeding assembly and a discharging assembly are fixedly connected to the housing 1. The feeding assembly is fixedly connected to the upper end of the baffle 25 for adding the battery powder to be dried into the heating cylinder 2. The discharging assembly is fixedly connected to the lower end of the baffle 25 for discharging the dried battery powder from the heating cylinder 2. The feeding assembly is a feeding pipe 12, and a feeding hopper 11 is provided at the upper end of the housing 1. One end of the feeding pipe 12 is connected to the feeding hopper 11, and the other end is connected to the baffle 25. The discharging assembly is a discharging pipe 13, one end of which is connected to the baffle 25, and the other end extends to the outside of the housing 1. The baffle 25 can be positioned by the feeding pipe 12 and the discharging pipe 13 fixedly installed inside the housing 1.

[0034] Material from the feed hopper 11 is introduced into the heating cylinder 2 through the feed pipe 12. Then, the drive motor 24 is started to drive the heating cylinder 2 to rotate. The heating mechanism inside the heating cylinder 2, such as the heating wire 6, heats up to dry the battery powder. To prevent the wire from winding, the heating wire 6 is also powered through a conductive slip ring. After heating, the aperture of the screening holes is adjusted by rotating the adjusting cylinder 3 to filter and discharge battery powder of different particle sizes. By adjusting the aperture of the screening holes in a gradually increasing order to multiple levels, multi-stage screening and discharge of battery powder particles of various particle sizes can be completed. After discharge, the remaining battery powder inside the heating cylinder 2 can be discharged to the outside of the shell 1 through the discharge pipe 13. A solenoid valve is installed near the baffle 25 on the discharge pipe 13. When the solenoid valve is opened, the battery powder can be discharged through the discharge pipe 13. With the help of the inclined baffle 23 pushing the battery powder back and forth, the discharge of battery powder inside the heating cylinder 2 can be completed more thoroughly.

[0035] like Figure 3 and 4 As shown, in order to improve drying efficiency, several partitions 23 are fixedly installed around the central column 22. The partitions 23 are fixedly connected to the inner wall of the heating cylinder 2 to form several independent heating chambers. The partitions 23 can divide the internal space of the heating cylinder 2 into multiple small heating chambers. When the small heating chambers rotate, they can cause the battery powder inside the small chambers to tumble, thereby making the heating more uniform.

[0036] To further improve drying efficiency, the heating chamber includes a first chamber 26 and a second chamber 27 spaced apart. The width of the first chamber 26 decreases from the end near the baffle 25 to the end away from the baffle 25, and the width of the second chamber 27 decreases from the end away from the baffle 25 to the end near the baffle 25. The partition 23 is not parallel to the central column 22. This results in the side walls of both the first chamber 26 and the second chamber 27 being inclined, with the inclinations of the two side walls of each chamber being opposite. When the heating cylinder 2 rotates, the two side walls of the independent heating chambers come into contact with the battery powder in sequence, causing the battery powder to move back and forth repeatedly, thereby enabling more uniform heating and drying of the battery powder.

[0037] The above description is illustrative only and not restrictive of this utility model. Those skilled in the art will understand that many modifications, variations or equivalents can be made without departing from the spirit and scope defined by the appended claims, and all such modifications, variations or equivalents will fall within the protection scope of this utility model.

Claims

1. A drying apparatus for preparing battery powder, comprising a housing (1) and a heating cylinder (2) rotatably disposed within the housing (1), characterized in that: The heating cylinder (2) is evenly provided with filter holes (21). The heating cylinder (2) is provided with a hole diameter adjustment mechanism for adjusting the hole diameter of the filter holes (21). The hole diameter adjustment mechanism can open or close the filter holes (21).

2. The drying apparatus for preparing battery powder according to claim 1, characterized in that: The aperture adjustment mechanism includes an adjustment cylinder (3) rotatably disposed outside the heating cylinder (2) and a rotary drive assembly (5) for driving the adjustment cylinder (3) to rotate. The adjustment cylinder (3) is evenly provided with adjustment holes (31) that are adapted to the filter holes (21).

3. The drying apparatus for preparing battery powder according to claim 2, characterized in that: Both the filter hole (21) and the adjustment hole (31) are teardrop-shaped. The width of the filter hole (21) decreases counterclockwise along the rotation direction of the heating cylinder (2), and the width of the adjustment hole (31) decreases clockwise along the rotation direction of the heating cylinder (2). The overlapping part of the filter hole (21) and the adjustment hole (31) forms a material hole. A material box (4) for holding and screening battery powder is provided below the material hole.

4. The drying apparatus for preparing battery powder according to claim 3, characterized in that: The rotary drive assembly (5) includes a servo motor (51) and a worm gear (52). The servo motor (51) is fixedly mounted on the edge of the heating cylinder (2) by a bracket. The output end of the servo motor (51) is fixedly connected to the worm gear (52). The edge of the adjusting cylinder (3) is provided with a worm wheel ring (53) that meshes with the worm gear (52).

5. The drying apparatus for preparing battery powder according to claim 1, characterized in that: The heating cylinder (2) has a central column (22), and a drive motor (24) is fixedly installed inside the housing (1). The output shaft of the drive motor (24) is fixedly connected to the end of the central column (22).

6. The drying apparatus for preparing battery powder according to claim 5, characterized in that: The drive motor (24) is located at one end of the heating cylinder (2), and the other end of the heating cylinder (2) is an open end, which is rotatably connected to a baffle (25).

7. The drying apparatus for preparing battery powder according to claim 6, characterized in that: The housing (1) is fixedly connected to a feeding group and a discharging group. The feeding group is fixedly connected to the upper end of the baffle (25) for adding the battery powder to be dried into the heating cylinder (2). The discharging group is fixedly connected to the lower end of the baffle (25) for exporting the dried battery powder from the heating cylinder (2).

8. The drying apparatus for preparing battery powder according to claim 7, characterized in that: The feeding group is a feeding pipe (12), and the upper end of the housing (1) is provided with a feeding hopper (11). One end of the feeding pipe (12) is connected to the feeding hopper (11), and the other end is connected to the baffle (25). The discharging group is a discharging pipe (13), one end of the discharging pipe (13) is connected to the baffle (25), and the other end extends to the outside of the housing (1).

9. A drying apparatus for preparing battery powder according to claim 6, characterized in that: The central column (22) is fixedly provided with several partitions (23) around its periphery. The partitions (23) are fixedly connected to the inner wall of the heating cylinder (2) to form several independent heating chambers.

10. A drying apparatus for preparing battery powder according to claim 9, characterized in that: The heating chamber includes a first chamber (26) and a second chamber (27) spaced apart. The width of the first chamber (26) decreases from the end near the baffle (25) to the end away from the baffle (25). The width of the second chamber (27) decreases from the end away from the baffle (25) to the end near the baffle (25). The partition (23) is not parallel to the central column (22).

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