A feeding device for the production of alumina powder

Abstract

The present invention discloses a blanking device for the production of alumina powder, which relates to the technical field of metal powder production, and includes a blanking box body, a connecting box body and a screening box body. The upper end of the connecting box body is connected to the bottom of the blanking box body in a communicating manner, and the lower end is connected to the upper end of the screening box body in a communicating manner. A grinding assembly is arranged at a position close to the bottom inside the blanking box body. A driving member is arranged at the center position of one side wall of the blanking box body, and the grinding assembly is driven to work by the driving member. A feed hopper is arranged at the middle position of the top of the blanking box body, and an extension feed pipe is connected to the bottom of the feed hopper in a communicating manner and the extension feed pipe can rotate. The present invention can not only quickly disperse the powder material to ensure the grinding efficiency and effect, but also automatically clean the coarse material on the screening mesh plate, reduce the labor intensity of personnel, and improve the production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of metal powder production, and particularly to a feeding device for alumina powder production. Background Art

[0002] ‌In recent years, high-purity alumina has been developing rapidly in industries such as ceramics, electronics, machinery, and medicine, and the requirements for the output and quality of high-purity alumina production are also increasing. In the production process of high-purity alumina, the hydrolysis method of aluminum foil (aluminum powder) and water is generally used to produce high-purity alumina. Its production process generally includes: putting the prepared aluminum foil (powder) into a reaction kettle, carrying out a hydrolysis reaction with water under the action of a catalyst to generate an aluminum hydroxide liquid slurry, separating the solid and liquid of the aluminum hydroxide liquid slurry to obtain alumina powder (containing attached water and crystal water), calcining the alumina powder at high temperature to obtain alumina powder (dry basis), forming the alumina powder by a forming device, and calcining the formed alumina at high temperature to obtain the final product.

[0003] The existing feeding devices for alumina powder production have at least the following defects:

[0004] 1. During the feeding process of the existing feeding equipment, since the position of the feeding port is fixed, the powder is likely to accumulate at a certain place of the grinding component. Therefore, it is not conducive to the grinding of the grinding component, which will affect the grinding efficiency and effect.

[0005] 2. When the existing feeding equipment preliminarily screens the powder at the grinding port, since the screened coarse material will remain on the filter plate, affecting the filtering efficiency, it is necessary to manually process it regularly. Personnel use a scraper to scrape the coarse material on the filter plate, which is time-consuming and laborious, and has low efficiency. Summary of the Invention

[0006] In view of the above deficiencies of the prior art, the present invention provides a feeding device for alumina powder production to solve the problems raised in the above background art.

[0007] To achieve the above object, the present invention is realized by the following technical solutions: A feeding device for producing alumina powder, comprising a feeding box body, a connecting box body and a screening box body. The upper end of the connecting box body is connected to the bottom of the feeding box body in a communicating manner, and the lower end is connected to the upper end of the screening box body in a communicating manner; A grinding assembly is arranged at a position close to the bottom inside the feeding box body. A driving member is arranged at the center position of one side wall of the feeding box body, and the grinding assembly is driven to work by the driving member; A feeding hopper is arranged at the middle position of the top of the feeding box body. An extension pipe is connected to the bottom of the feeding hopper in a communicating manner and the extension pipe can rotate; A fixed box is arranged on the inner side wall of the feeding box body and is located between the grinding assembly and the feeding hopper. A circular path support slide rail is arranged on the inner side wall of the fixed box. A circular ring-shaped rotating support block is rotatably arranged on the support slide rail. The outer ring of the rotating support block is slidably connected to the support slide rail. A pair of vertical connecting columns are symmetrically and fixedly arranged on both sides of the center of the rotating support block. The connecting columns penetrate through the rotating support block. Arc through holes are symmetrically arranged on both sides of the center of the fixed box. A pair of connecting columns respectively penetrate through the arc through holes and can slide in the arc through holes. A transmission gear ring is arranged at the upper ends of the pair of connecting columns, and a discharge pipe body is arranged at the lower ends. A first motor is arranged at a position close to the top of the side wall of the feeding box body. The output end of the first motor penetrates through the inside of the feeding box body and a gear is arranged. The gear is meshed with the transmission gear ring; A second motor is arranged at one end inside the discharge pipe body. A spiral blade column is arranged on the driving end of the second motor. A plurality of discharge column pipes are uniformly arranged on the bottom of the discharge pipe body. The center of the fixed box is designed with an opening. The extension pipe penetrates through the opening and is connected to the center position of the top of the discharge pipe body in a communicating manner;

[0008] Inside the screening box body, a driving box and a first connecting plate are respectively arranged on opposite side walls. A third motor is arranged inside the driving box. A threaded rod is arranged on the output end of the third motor. A connecting block is screwed on the threaded rod. The connecting block penetrates out of the driving box and moves vertically on the driving box. A second connecting plate is rotatably arranged on one side of the connecting block. A screening mesh plate is arranged between the first connecting plate and the second connecting plate. A vibration motor is arranged at the center position of the bottom of the screening mesh plate. A connecting column is arranged at one end of the screening mesh plate corresponding to the first connecting plate. A connecting groove body corresponding to the connecting column is arranged on the first connecting plate. The connecting column penetrates through the connecting groove body and can move in the connecting groove body. A discharge box is arranged on the side wall of the screening box body and corresponds to the upper surface of the first connecting plate. The discharge box is communicated with the screening box body.

[0009] Preferably, the connecting box body has a square horn-shaped structure, and the size of the screening box body is smaller than that of the feeding box body.

[0010] Preferably, support legs are installed at the bottom edge of the feeding box body.

[0011] Preferably, the blades on both sides of the center of the spiral blade column are designed in opposite directions.

[0012] Preferably, shielding blocks are movably arranged on the upper surfaces of the joints between the screening mesh plate and the first connecting plate and between the screening mesh plate and the second connecting plate.

[0013] Preferably, the end of the shielding block is in an inclined structure and is made of rubber material.

[0014] The present invention provides a feeding device for alumina powder production, having the following beneficial effects:

[0015] 1. The present invention can conveniently and quickly disperse the powder material entering the feeding box through the feeding hopper, and gradually fall to various positions of the grinding assembly, avoiding powder accumulation at a certain place, ensuring the grinding efficiency and effect of the grinding assembly, and reducing the damage to the grinding assembly. At the same time, when the powder falls on the screening mesh plate, the powder on the screening mesh plate is preliminarily screened by the vibration motor. After being screened, the powder can be guided to the discharge box by changing the inclined distribution of the screening mesh plate, facilitating subsequent centralized treatment, reducing the labor intensity of personnel, improving the automation degree, and enhancing the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the whole of the present invention;

[0017] Figure 2 is a schematic diagram of the feeding box of the present invention;

[0018] Figure 3 is a front view schematic diagram of the discharge pipe body and the fixed box of the present invention with the front side wall removed;

[0019] Figure 4 is a schematic diagram of the fixed box of the present invention;

[0020] Figure 5 is a schematic diagram of the screening box of the present invention;

[0021] Figure 6 is a schematic diagram of the drive box of the present invention;

[0022] Figure 7 is an exploded view of the joint between the screening mesh plate and the first connecting plate of the present invention.

[0023] In the figure: 1. Screening box body; 2. Support legs; 3. Connecting box body; 4. Feeding box body; 5. Feeding hopper; 6. First motor; 7. Extended material pipe; 8. Driving gear ring; 9. Fixed box; 10. Driving part; 11. Discharge pipe body; 12. Grinding assembly; 13. Rotating support block; 14. Support slide rail; 15. Discharge column pipe; 16. Spiral leaf column; 17. Second motor; 18. Connecting column body; 19. Shielding block; 20. Screening mesh plate; 21. First connecting plate; 22. Gear; 23. Discharge box; 24. Second connecting plate; 25. Connecting column; 26. Connecting block; 27. Threaded rod; 28. Third motor; 29. Driving box; 30. Connecting groove body; 31. Arc through hole. Detailed implementation manner

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0025] As Figures 1-7As shown in the figure, a feeding device for producing alumina powder includes a feeding box body 4, a connecting box body 3 and a screening box body 1. The upper end of the connecting box body 3 is connected to the bottom of the feeding box body 4 in a communicating manner, and the lower end is connected to the upper end of the screening box body 1 in a communicating manner. A grinding assembly 12 is arranged at a position near the bottom inside the feeding box body 4. A driving member 10 is arranged at the center of one side wall of the feeding box body 4, and the grinding assembly 12 is driven to work by the driving member 10. A feeding hopper 5 is arranged at the middle position of the top of the feeding box body 4. An extension material pipe 7 is connected to the bottom of the feeding hopper 5 in a communicating manner and the extension material pipe 7 can rotate. A fixed box 9 is arranged on the inner side wall of the feeding box body 4 and is located between the grinding assembly 12 and the feeding hopper 5. A circular-path support sliding rail 14 is arranged on the inner side wall of the fixed box 9. A circular-ring-shaped rotating support block 13 is rotatably arranged on the support sliding rail 14. The outer ring of the rotating support block 13 is slidably connected to the support sliding rail 14. A pair of vertical connecting columns 18 are symmetrically and fixedly arranged on both sides of the center of the rotating support block 13. The connecting columns 18 penetrate through the rotating support block 13. Arc through holes 31 are symmetrically arranged on both sides of the center of the fixed box 9. A pair of connecting columns 18 respectively penetrate through the arc through holes 31 and can slide in the arc through holes 31. A transmission gear ring 8 is arranged at the upper ends of the pair of connecting columns 18, and a discharge pipe body 11 is arranged at the lower ends. A first motor 6 is arranged at a position near the top of the side wall of the feeding box body 4. The output end of the first motor 6 penetrates through the inside of the feeding box body 4 and is provided with a gear 22. The gear 22 is meshed with the transmission gear ring 8. A second motor 17 is arranged at one end inside the discharge pipe body 11. A spiral blade column 16 is arranged at the driving end of the second motor 17. A plurality of discharge column pipes 15 are evenly arranged at the bottom of the discharge pipe body 11. The center of the fixed box 9 is designed to be open. The extension material pipe 7 penetrates through the opening and is connected to the center position of the top of the discharge pipe body 11 in a communicating manner. A driving box 29 and a first connecting plate 21 are respectively arranged on the opposite side walls inside the screening box body 1. A third motor 28 is arranged inside the driving box 29. A threaded rod 27 is arranged at the output end of the third motor 28. A connecting block 26 is screwed on the threaded rod 27. The connecting block 26 penetrates out of the driving box 29 and moves vertically on the driving box 29. A second connecting plate 24 is rotatably arranged on one side of the connecting block 26. A screening mesh plate 20 is arranged between the first connecting plate 21 and the second connecting plate 24. A vibration motor is arranged at the center position of the bottom of the screening mesh plate 20. A connecting column 25 is arranged at one end of the screening mesh plate 20 corresponding to the first connecting plate 21. A connecting groove body 30 corresponding to the connecting column 25 is arranged on the first connecting plate 21. The connecting column 25 penetrates through the connecting groove body 30 and can move in the connecting groove body 30. A discharge box 23 is arranged on the side wall of the screening box body 1 and corresponds to the upper surface of the first connecting plate 21. The discharge box 23 is communicated with the screening box body 1. The connecting box body 3 has a square horn-shaped structure. The size of the screening box body 1 is smaller than that of the feeding box body 4.Support legs 2 are installed at the bottom edge of the blanking box body 4; the blades on both sides of the center of the spiral blade column 16 are designed in opposite directions; shielding blocks 19 are movably arranged on the upper surfaces of the joints between the screening mesh plate 20 and the first connecting plate 21 and the upper surfaces of the joints between the screening mesh plate 20 and the second connecting plate 24; the ends of the shielding blocks 19 are of an inclined structure and are made of rubber material.;

[0026] The detailed connection means are well-known techniques in the art. The following mainly introduces the working principle and process, which are as follows:

[0027] According to the attached instructions Figures 1-7It can be seen that during the operation of the present invention, alumina powder (coarse material) first enters the interior of the blanking box body 4 through the feed hopper 5, falls onto the grinding assembly 12 inside the blanking box body 4 through the discharge pipe body 11, and is ground. At the same time, the first motor 6, the second motor 17, and the driving member 10 operate. The second motor 17 drives the spiral blade column 16 to rotate, driving the powder material to move inside the discharge pipe body 11 and fall through the discharge column pipe 15. The first motor 6 drives the gear 22 to rotate. Since the gear 22 is meshed and connected with the transmission gear ring 8, the transmission gear ring 8 can be driven to rotate. Here, according to the designed position, the gear 22 and the transmission gear ring 8 are conical, which is well understood by those skilled in the art. The transmission gear ring 8 drives a pair of connecting column bodies 18 and the discharge pipe body 11 to rotate. Here, since the connecting column body 18 penetrates and is fixed to the fixed box 9 and penetrates through the arc through hole 31, the first motor 6 is a forward and reverse motor, driving the transmission gear ring 8 and the connecting column body 18 to reciprocate in the arc through hole 31, and then the discharge pipe body 11 can be driven to reciprocate, that is, return after rotating a certain position, not rotating, and evenly discharging the powder material onto the grinding assembly 12 to avoid accumulation and facilitate the grinding work of the grinding assembly 12. Here, the driving member 10 drives the grinding assembly 12 to grind the powder, and the driving member 10 and the grinding assembly 12 can adopt existing technologies. When the powder grinding is completed, it will enter the screening box body 1 through the connecting box body 3 and fall onto the screening mesh plate 20 for screening operation. The middle part of the screening mesh plate 20 has a plate body design and is provided with a vibration motor, which is an existing technology. The vibration motor drives the screening mesh on the screening mesh plate 20 to vibrate and screen. The screened powder falls through the bottom of the screening box body 1, and the bottom can be connected with a transport trolley to receive the material. The screened coarse material will remain on the screening mesh. At this time, the third motor 28 drives the threaded rod 27 to rotate. Since the connecting block 26 is vertically slidably connected to the driving box 29, the rotation of the threaded rod 27 can make the connecting block 26 screwed thereto move upward. Since the connecting block 26 is rotatably connected to one end of the screening mesh plate 20, and the other end of the screening mesh plate 20 is movably connected to the connecting groove body 30 of the first connecting plate 21 through the connecting column 25, satisfying the position change of the screening mesh plate 20. Therefore, the upward movement of the connecting block 26 can lift one end of the screening mesh plate 20, making the overall screening mesh plate 20 inclined. At this time, the remaining powder can be conveniently moved to the discharge box 23 for subsequent centralized treatment.The present invention can conveniently and rapidly disperse the powder material entering the interior of the blanking box body 4 through the feed hopper 5, and gradually fall to various positions of the grinding assembly 12, avoiding powder accumulation at a certain place, ensuring the grinding efficiency and effect of the grinding assembly 12, and reducing the damage to the grinding assembly 12. At the same time, when the powder falls on the screening mesh plate 20, the powder on the screening mesh plate 20 is preliminarily screened by the vibration motor. After being screened, the powder can be guided to the discharge box 23 by changing the inclined distribution of the screening mesh plate 20, facilitating subsequent centralized processing, reducing the labor intensity of personnel, improving the degree of automation, and enhancing the production efficiency.

[0028] Among them, the connecting box body 3 has a square horn-shaped structure. The size of the screening box body 1 is smaller than that of the blanking box body 4. Support legs 2 are installed at the bottom edge of the blanking box body 4. Designed according to common sense and conventional means, the structure is reasonable.

[0029] Among them, the blade design directions on both sides of the center of the spiral blade column 16 are opposite, which can disperse the material entering the discharge pipe body 11 and improve the uniformity of the powder material discharge.

[0030] Among them, shielding blocks 19 are movably arranged on the upper surfaces of the joints between the screening mesh plate 20 and the first connecting plate 21 and the upper surfaces of the joints between the screening mesh plate 20 and the second connecting plate 24 to prevent powder from leaking from the joints. The ends of the shielding blocks 19 have an inclined structure, reducing the influence on the movement of the material on the screening mesh plate 20. They are made of rubber material to improve the service life.

[0031] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A feeding device for producing aluminum oxide powder, characterized in that: The invention comprises a material discharge box (4), a connecting box (3) and a screening box (1); the upper end of the connecting box (3) is connected to the bottom of the material discharge box (4), and the lower end is connected to the upper end of the screening box (1); a grinding assembly (12) is arranged in the material discharge box (4) at a position close to the bottom; a driving member (10) is arranged at the center of one side wall of the material discharge box (4), and the grinding assembly (12) is driven by the driving member (10); a feeding hopper (5) is arranged at the middle position of the top of the material discharge box (4), and the feeding hopper (5) is arranged at the bottom of the material discharge box (4); The bottom of the hopper (5) is connected to an extension material pipe (7) and the extension material pipe (7) is rotatable; a fixing box (9) is provided on the inner side wall of the unloading box (4) and is located between the grinding assembly (12) and the feed hopper (5); a supporting slide rail (14) with a circular path is provided on the inner side wall of the fixing box (9); a circular ring-shaped rotating support block (13) is rotatably provided on the supporting slide rail (14); the outer ring of the rotating support block (13) is slidably connected to the supporting slide rail (14); the rotating support block (13) is symmetrically and fixedly provided on both sides of the center A pair of vertical connecting columns (18) are arranged, the connecting columns (18) pass through the rotating support block (13), arc through holes (31) are symmetrically arranged on both sides of the center of the fixed box (9), the pair of connecting columns (18) respectively pass through the arc through holes (31) and can slide in the arc through holes (31), the upper ends of the pair of connecting columns (18) are provided with a transmission gear ring (8), and the lower ends are provided with a discharge pipe body (11), and a first motor (6) is arranged near the top of the side wall of the discharge box (4), and the output of the first motor (6) The end of the discharge tube (11) passes through the interior of the discharge box (4) and is provided with a gear (22), and the gear (22) is meshed with the transmission gear ring (8); a second motor (17) is provided on one end of the interior of the discharge tube (11), and a spiral blade column (16) is provided on the driving end of the second motor (17); a plurality of discharge column tubes (15) are evenly arranged on the bottom of the discharge tube (11); the center of the fixed box (9) is designed to be open, and the extension tube (7) passes through the opening and is connected to the center position of the top of the discharge tube (11); A driving box (29) and a first connecting plate (21) are respectively arranged on opposite side walls inside the screening box (1); a third motor (28) is arranged inside the driving box (29); a threaded rod (27) is arranged on the output end of the third motor (28); a connecting block (26) is screwed on the threaded rod (27); the connecting block (26) passes through the driving box (29) and moves vertically on the driving box (29); a second connecting plate (24) is rotatably arranged on one side of the connecting block (26); a connecting plate (24) is arranged between the first connecting plate (21) and the second connecting plate (24); A screening mesh plate (20) is arranged, and a vibration motor is arranged at the center position of the bottom of the screening mesh plate (20); a connecting column (25) is arranged on one end of the screening mesh plate (20) corresponding to the first connecting plate (21); a connecting groove body (30) corresponding to the connecting column (25) is arranged on the first connecting plate (21); the connecting column (25) passes through the connecting groove body (30) and can move in the connecting groove body (30); a discharge box (23) is arranged on the side wall of the screening box body (1) and at a position corresponding to the upper surface of the first connecting plate (21); the discharge box (23) is connected to the screening box body (1).

2. The feeding device for producing aluminum oxide powder according to claim 1, characterized in that: The connecting box (3) is in a square trumpet-shaped structure, and the size of the screening box (1) is smaller than that of the unloading box (4).

3. The feeding device for producing aluminum oxide powder according to claim 1, characterized in that: Support legs (2) are installed on the bottom edge of the material unloading box (4).

4. The feeding device for producing aluminum oxide powder according to claim 1, characterized in that: The blades on both sides of the center of the spiral blade column (16) are designed in opposite directions.

5. The feeding device for producing aluminum oxide powder according to claim 1, characterized in that: The upper surface of the connection between the screening mesh plate (20) and the first connecting plate (21) and the upper surface of the connection between the screening mesh plate (20) and the second connecting plate (24) are both movably provided with shielding blocks (19).

6. The feeding device for producing aluminum oxide powder according to claim 5, characterized in that: The end of the shielding block (19) is in an inclined structure and is made of rubber material.

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