A cobalt oxide powder classification apparatus

Abstract

The application discloses a kind of tricobalt tetroxide powder grading equipment, it is related to tricobalt tetroxide production equipment field, including sealing cylinder, feeding opening, multilayer screening plate and poking lever structure, the feeding opening is installed at the top of sealing cylinder, the screening plate is equidistantly arranged in sealing cylinder and is all coaxially arranged in vertical direction, the screening plate is all installed on vertical rod, the poking lever structure is arranged below screening plate and the number corresponds to screening plate, the poking lever structure is fixedly installed on vertical rod, the bottom of vertical rod is connected on the output shaft of motor, the motor is fixedly installed on clamping plate, the clamping plate is fixedly installed on the bottom plate of sealing cylinder, vibration motor is further provided on the side wall of sealing cylinder, and the vibration motor is used to drive screening plate vibration, the present application can reduce the wear of screening plate by destroying the regularity of the vibration of screening plate itself.

Description

Technical Field

[0001] This invention relates to the field of cobalt tetroxide production equipment, specifically a cobalt tetroxide powder grading device. Background Technology

[0002] In the preparation of cobalt tetroxide, the cobalt tetroxide powder produced after calcination and pulverization needs to be sieved to separate powders of different particle sizes, thereby achieving powder classification. Especially when used in lithium batteries, the particle size distribution of cobalt tetroxide powder determines the performance of the battery, so it is necessary to select cobalt tetroxide powder with the required particle size.

[0003] Currently, the classification of cobalt tetroxide powder mainly uses mechanical methods such as multi-stage vibrating screens and air classifiers. Air classifiers require large and constant air supply equipment and dust recovery equipment, which are costly. Therefore, most manufacturers choose vibrating screens for sieving. However, the vibration frequency of the screen mesh in the vibrating screen is always based on the frequency of the vibrating motor, which accelerates the wear of the screen mesh. At the same time, the screen mesh has poor adaptability, which is not conducive to production. Summary of the Invention

[0004] The purpose of this invention is to provide a cobalt tetroxide powder classification device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a cobalt tetroxide powder grading device, comprising a sealed cylinder, a feeding port, multiple sieve plates, and a lever structure. The feeding port is installed on the top of the sealed cylinder. The sieve plates are equidistantly arranged inside the sealed cylinder and are all coaxially arranged in the vertical direction. The sieve plates are all mounted on vertical rods. The lever structure is located below the sieve plates and the number corresponds to the number of sieve plates. The lever structure is fixedly installed on the vertical rods. The bottom of the vertical rods is connected to the output shaft of a motor. The motor is fixedly installed on a clamping plate. The clamping plate is fixedly installed on the bottom plate of the sealed cylinder. A vibration motor is also provided on the side wall of the sealed cylinder, and the vibration motor is used to drive the sieve plates to vibrate.

[0006] Preferably, the bottom of the sealing cylinder is provided with a support.

[0007] Preferably, the feeding port is funnel-shaped.

[0008] Preferably, the screening plate includes a screen plate and a ball plate. The screen plate is provided with a screen, and the mesh size of the screen decreases sequentially from top to bottom of the screening plate. The ball plate includes several pieces that are evenly spaced and distributed circumferentially on the screening plate, and balls are installed on the bottom surface of the ball plate.

[0009] Preferably, the rolling ball and the rolling ball plate are in a clearance fit, and the diameter of the rolling ball increases sequentially from the inside to the outside.

[0010] Preferably, the screen plate is mounted on a vertical rod via a fixing flange, and the top of the fixing flange is provided with an inclined surface.

[0011] Preferably, the actuating lever structure encloses the lever body and the bristles, the lever body is mounted on a vertical rod via a connecting rod, and the bristles are evenly distributed on the surface of the lever body.

[0012] Preferably, the bristles can come into contact with the rolling ball during rotation.

[0013] Preferably, the card plate is provided with a positioning edge.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. This invention can use balls of different sizes to vibrate at different frequencies within the screening plate under the drive of a vibrating motor, thereby disrupting the regularity of the screening plate's own vibration and reducing the wear of the screening plate.

[0016] 2. The brush bristles in this invention can agitate and disperse the powder falling from the upper layer, which facilitates rapid sieving. Powder that may remain on the brush bristles will fall off the brush bristles under the action of the vibrating ball, thus avoiding a large amount of powder remaining between the brush bristles. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention;

[0018] Figure 2 This is a top view of the present invention;

[0019] Figure 3 for Figure 2 Cross-sectional view of the inner AA section;

[0020] Figure 4 Here is a structural diagram of the screening plate and the actuating rod;

[0021] Figure 5 for Figure 4 Enlarged view of the structure at point B.

[0022] In the diagram: 1-Sealed cylinder; 11-Overhead support;

[0023] 2-Feeding port; 21-Water inlet connector; 22-Air inlet pipe;

[0024] 3-Screening plate; 31-Screen mesh plate; 32-Ball plate; 33-Ball; 34-Fixed flange;

[0025] 4-Actuating lever structure; 41-Lever body; 42-Brush bristles;

[0026] 5-Vertical rod; 6-Motor; 7-Clamping plate; 8-Vibration motor. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0028] Please see Figures 1 to 5 This invention provides a technical solution: a cobalt tetroxide powder grading device, comprising a sealed cylinder 1, a feeding port 2, multi-layer sieve plates 3, and a lever structure 4. The feeding port 2 is installed on the top of the sealed cylinder 1. The sieve plates 3 are equidistantly arranged inside the sealed cylinder 1 and are all coaxially arranged in the vertical direction. The sieve plates 3 are all installed on vertical rods 5. The lever structure 4 is located below the sieve plates 3 and the number corresponds to the number of sieve plates 3. The lever structure 4 is fixedly installed on the vertical rods 5. The bottom of the vertical rods 5 is connected to the output shaft of a motor 6. The motor 6 is fixedly installed on a clamping plate 7. The clamping plate 7 is fixedly installed on the bottom plate of the sealed cylinder 1. A vibration motor 8 is also provided on the side wall of the sealed cylinder 1. The vibration motor 8 is used to drive the sieve plates to vibrate. Through the vibration of the multi-layer sieve plates 3, the cobalt tetroxide powder is graded.

[0029] In this embodiment, the bottom of the sealing cylinder 1 is provided with a support 11 to facilitate the installation of the motor 6.

[0030] In this embodiment, the feed port 2 is funnel-shaped, which allows a large amount of material to be screened to be added at once, and then the material is continuously conveyed in as the screening below proceeds.

[0031] In this embodiment, the screening plate 3 includes a screen plate 31 and a ball plate 32. The screen plate 31 is provided with a screen, and the mesh size of the screen is progressively smaller from top to bottom on the screening plate 31. The ball plate 32 includes several pieces that are evenly spaced and distributed circumferentially on the screening plate 3. Balls 33 are installed on the bottom surface of the ball plate 32. The screen can continuously screen cobalt tetroxide. The balls 33 in the ball plate 32 are driven to vibrate by the vibration motor 8, which changes the vibration pattern of the screening plate 3 and reduces the wear of the screening plate 3.

[0032] In this embodiment, the rolling ball 33 and the rolling ball plate 32 are in clearance fit. The diameter of the rolling ball 33 increases from the inside to the outside. Since the diameter of the rolling ball 33 is different, the frequency of vibration with the vibration motor 8 is also different. When different rolling balls 33 vibrate together, the vibration of the screen plate 31 will be more irregular, which will make it more suitable for screening cobalt tetroxide powder.

[0033] In this embodiment, the screen plate 31 is mounted on the vertical rod 5 via a fixing flange 34. The top of the fixing flange 34 is provided with an inclined surface, which can prevent powder from being trapped on the top surface of the fixing flange 34.

[0034] In this embodiment, the actuating rod structure 4 encloses the rod body 41 and the bristles 42. The rod body 41 is mounted on the vertical rod 5 via the connecting rod 43. The rod body 41 and the connecting rod 43 are rotatably connected. The bristles 42 are evenly distributed on the surface of the rod body 41. During rotation, the bristles 42 can contact the rolling ball 33. When the vertical rod 5 rotates, the bristles 42 will sweep across the surface of the powder. Since the rod body 41 can rotate relative to the connecting rod 43, when the bristles 42 encounter the resistance of the powder, the rod body 41 will rotate on the connecting rod 43. This will quickly disperse and agitate the powder falling on the sieve plate 3, facilitating faster sieving of the powder. At the same time, the rotating bristles 42 meet the vibrating rolling ball 33, and under the action of the vibrating rolling ball 33, the powder adhering to the bristles 42 will be shaken off, preventing a large amount of powder from remaining between the bristles 42.

[0035] In this embodiment, the card plate 7 is provided with a positioning edge, which facilitates the quick installation of the card plate 7.

[0036] Working principle: First, a certain amount of cobalt tetroxide powder to be screened is added to the feed port 2. Then, the vibrating motor 8 is turned on, and the powder will begin to be screened on the vibrating screen plate 31. Then, the powder with smaller particle size will fall onto the next screen plate 31. At this time, the motor 6 is turned on, and the actuating rod structure 4 starts to rotate. The brush bristles 42 set on it stir the falling powder, helping the powder to complete the screening on the screening plate 3 as soon as possible. With the powder being screened step by step, powders of different particle sizes can be screened out, and the powder classification is completed.

[0037] Based on the above, this invention can use rollers of different sizes to vibrate at different frequencies within the sieve plate under the drive of a vibrating motor, thereby disrupting the regularity of the sieve plate's own vibration and reducing wear on the sieve plate. The bristles in this invention can agitate and disperse the powder falling from the upper layer, facilitating rapid sieving. Powder that may remain on the bristles will fall off the bristles under the action of the vibrating rollers, preventing a large amount of powder from remaining between the bristles.

[0038] As is known from common technical knowledge, this invention can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative and not exhaustive. All modifications within the scope of this invention or its equivalents are included in this invention.

Claims

1. A tri-cobalt tetraoxide powder classification apparatus, characterized by: The utility model relates to a kind of multi-layer screening device, including sealing cylinder (1), feeding opening (2), multi-layer screening plate (3) and poking rod structure (4), the feeding opening (2) is installed at the top of sealing cylinder (1), the screening plate (3) is equidistantly arranged in sealing cylinder (1) and is vertically coaxial arrangement, the screening plate (3) is installed on vertical rod (5), the poking rod structure (4) is arranged below screening plate (3) and the number corresponds to screening plate (3), the poking rod structure (4) is fixedly installed on vertical rod (5), the bottom of vertical rod (5) is connected on the output shaft of motor (6), the motor (6) is fixedly installed on clamping plate (7), the clamping plate (7) is fixedly installed on the bottom plate of sealing cylinder (1), vibration motor (8) is further provided on the side wall of sealing cylinder (1), and the vibration motor (8) is used to drive screening plate vibration; The screening plate (3) includes screen plate (31) and ball plate (32), the screen plate (31) is provided with screen, the screen is sequentially reduced in mesh size from top to bottom of screening plate (3), the ball plate (32) includes several and is uniformly distributed in circumference on screening plate (3), and the bottom surface of ball plate (32) is provided with ball (33); The ball (33) is gap fit between ball plate (32), and the ball (33) is sequentially increased in diameter from inside to outside; The poking rod structure (4) includes rod body (41) and bristle (42), the rod body (41) is installed on vertical rod (5) by connecting rod (43), the rod body (41) is rotatably connected with connecting rod (43), and the bristle (42) is evenly arranged on the surface of rod body (41); The bristle (42) can contact ball (33) in rotating process.

2. A tricobalt tetroxide powder sizing apparatus as defined in claim 1, wherein: The bottom of sealing cylinder (1) is provided with an overhead seat (11).

3. A tricobalt tetroxide powder sizing apparatus as defined in claim 1, wherein: The feeding opening (2) is funnel-shaped.

4. A tricobalt tetroxide powder sizing apparatus as defined in claim 1, wherein: The screen plate (31) is installed on vertical rod (5) by fixed flange (34), and the top of fixed flange (34) is provided with inclined surface.

5. A tricobalt tetroxide powder sizing apparatus as defined in claim 1, wherein: The clamping plate (7) is provided with positioning edge.

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