Discharging device for aluminum oxide powder production

Abstract

The invention discloses a discharging device for aluminum oxide powder production, and relates to the technical field of metal powder production, the discharging device comprises a discharging box body, a connecting box body and a screening box body, the upper end of the connecting box body is communicated and connected with the bottom of the discharging box body, and the lower end of the connecting box body is communicated and connected with the upper end of the screening box body; a grinding assembly is arranged at the position, close to the bottom, in the discharging box body, a driving part is arranged in the center of one side wall of the discharging box body, and the grinding assembly is driven by the driving part to work. A feeding hopper is arranged in the middle of the top of the discharging box body, and an extending material pipe is arranged at the bottom of the feeding hopper in a communicating mode and can rotate. According to the powder grinding device, powder can be quickly dispersed, the grinding efficiency and effect are guaranteed, coarse materials on the screening net plate can be automatically cleaned, the labor intensity of workers is relieved, and the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of metal powder production, in particular to a feeding device for producing aluminum oxide powder. Background Art

[0002] In recent years, high-purity alumina has developed rapidly in the ceramic, electronic, mechanical, and pharmaceutical industries, and the production and quality requirements for high-purity alumina production have also increased. 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 adopts that the prepared aluminum foil (powder) is put into the reactor, and hydrolyzes with water under the action of a catalyst to generate aluminum hydroxide liquid slurry. After solid-liquid separation of the aluminum hydroxide liquid slurry, alumina powder (containing attached water and crystal water) is obtained. The alumina powder is calcined at high temperature to obtain alumina powder (dry basis), and the alumina powder is formed by molding equipment. The formed alumina is calcined at high temperature to obtain the final product.

[0003] The existing feeding device for alumina powder production has at least the following defects: 1. In the process of unloading, the existing unloading equipment has a fixed position of the unloading port, so the powder is easy to accumulate at a certain place of the grinding component, which is not conducive to the grinding of the grinding component, thus affecting the grinding efficiency and effect; 2. When the existing feeding equipment performs preliminary screening on the powder at the grinding mouth, the coarse material screened out will remain on the filter plate, affecting the filtering efficiency. Therefore, it needs to be manually processed regularly. The personnel use a scraper to scrape the coarse material on the filter plate, which is time-consuming, labor-intensive and inefficient. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the present invention provides a feeding device for producing alumina powder to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a feeding device for the production of alumina powder, comprising a feeding box, a connecting box and a screening box, the upper end of the connecting box is connected to the bottom of the feeding box, and the lower end is connected to the upper end of the screening box; a grinding assembly is arranged in the feeding box at a position close to the bottom, a driving member is arranged at the center of one side wall of the feeding box, and the grinding assembly is driven to work by the driving member; a feeding hopper is arranged in the middle position at the top of the feeding box, an extension material pipe is arranged on the bottom of the feeding hopper and the extension material pipe can rotate; a fixed box is arranged on the inner side wall of the feeding box and is located between the grinding assembly and the feeding hopper, a supporting slide rail with a circular path is arranged on the inner side wall of the fixed box, a circular ring-shaped rotating support block is rotatably arranged on the supporting slide rail, and the outer ring of the rotating support block is connected to the supporting slide rail A sliding connection, a pair of vertical connecting cylinders are symmetrically and fixedly arranged on both sides of the center of the rotating support block, the connecting cylinders penetrate the rotating support block, and arc through holes are symmetrically arranged on both sides of the center of the fixed box, a pair of connecting cylinders respectively penetrate the arc through holes and can slide in the arc through holes, a pair of connecting cylinders are provided with transmission gear rings on the upper ends, and a discharge pipe body is provided at the lower ends, a first motor is provided at a position near the top of the side wall of the discharge box body, the output end of the first motor penetrates the interior of the discharge box body and is provided with a gear, and the gear is meshed and connected with the transmission gear ring; a second motor is provided on one end of the interior of the discharge pipe body, and a spiral blade column is provided on the driving end of the second motor, and a number of discharge column tubes are evenly arranged on the bottom of the discharge pipe body, the center of the fixed box is designed as an opening, and the extension material pipe passes through the opening and is connected to the center position of the top of the discharge pipe body; A driving box and a first connecting plate are respectively provided on opposite side walls inside the screening box, a third motor is provided inside the driving box, a threaded rod is provided on the output end of the third motor, a connecting block is screwed on the threaded rod, the connecting block passes through the driving box and moves vertically on the driving box, a second connecting plate is rotatably provided on one side of the connecting block, a screening mesh plate is provided between the first connecting plate and the second connecting plate, a vibration motor is provided at the bottom center of the screening mesh plate, a connecting column is provided on one end of the screening mesh plate corresponding to the first connecting plate, a connecting groove body corresponding to the connecting column is provided on the first connecting plate, the connecting column passes through the connecting groove body and can move in the connecting groove body, a discharge box is provided on the side wall of the screening box body and at a position corresponding to the upper surface of the first connecting plate, and the discharge box is connected with the screening box body.

[0006] Preferably, the connecting box has a square trumpet-shaped structure, and the screening box is smaller in size than the unloading box.

[0007] Preferably, support legs are installed on the bottom edge of the discharge box.

[0008] Preferably, the blades on both sides of the center of the spiral blade column are designed in opposite directions.

[0009] Preferably, shielding blocks are movably provided on the upper surface of the connection between the screening mesh plate and the first connecting plate and the upper surface of the connection between the screening mesh plate and the second connecting plate.

[0010] Preferably, the end of the shielding block is in an inclined structure and is made of rubber material.

[0011] The present invention provides a feeding device for producing aluminum oxide powder, which has the following beneficial effects: 1. The present invention can conveniently and quickly disperse the powder material entering the discharge box through the feed hopper, and gradually drop it to various positions of the grinding component, avoiding the accumulation of powder in a certain place, ensuring the grinding efficiency and effect of the grinding component, and reducing the damage to the grinding component. At the same time, when the powder falls on the screening mesh plate, the powder on the screening mesh plate is preliminarily screened by a vibration motor, and the screened powder can be guided to the discharge box by changing the inclined distribution of the screening mesh plate, which is convenient for subsequent centralized processing, reduces the labor intensity of personnel, improves the degree of automation, and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the blanking box of the present invention; Figure 3 This is a front view schematic diagram of the discharge tube body and the fixing box of the present invention without the front side wall; Figure 4 is a schematic diagram of a fixing box of the present invention; Figure 5 It is a schematic diagram of the screening box of the present invention; Figure 6 It is a schematic diagram of the drive box of the present invention; Figure 7 This is a disassembled diagram of the connection between the screening mesh plate and the first connecting plate of the present invention.

[0013] In the figure: 1. screening box; 2. supporting legs; 3. connecting box; 4. unloading box; 5. feeding hopper; 6. first motor; 7. extending material pipe; 8. transmission gear ring; 9. fixing box; 10. driving member; 11. discharge pipe body; 12. grinding assembly; 13. rotating support block; 14. supporting slide rail; 15. discharge column pipe; 16. spiral blade column; 17. second motor; 18. connecting column; 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 trough; 31. arc through hole. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0015] like Figure 1-7As shown, a feeding device for the production of alumina powder comprises a feeding box 4, a connecting box 3 and a screening box 1, wherein the upper end of the connecting box 3 is connected to the bottom of the feeding 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 feeding box 4 near the bottom, a driving member 10 is arranged at the center of one side wall of the feeding box 4, and the grinding assembly 12 is driven by the driving member 10; a feeding hopper 5 is arranged at the middle position on the top of the feeding box 4, an extension pipe 7 is arranged on the bottom of the feeding hopper 5, and the extension pipe 7 can rotate; a fixing box 9 is arranged on the inner side wall of the feeding box 4 and is located between the grinding assembly 12 and the feeding hopper 5, and a circular path is arranged on the inner side wall of the fixing box 9 A support rail 14 is provided on which a circular rotating support block 13 is rotatably arranged. The outer ring of the rotating support block 13 is slidably connected to the support rail 14. A pair of vertical connecting cylinders 18 are symmetrically and fixedly arranged on both sides of the center of the rotating support block 13. The connecting cylinders 18 pass through the rotating support block 13. Circular arc through holes 31 are symmetrically arranged on both sides of the center of the fixed box 9. A pair of connecting cylinders 18 respectively pass through the circular arc through holes 31 and can slide in the circular arc through holes 31. A transmission gear ring 8 is arranged on the upper ends of the pair of connecting cylinders 18, and a discharge pipe body 11 is arranged on the lower ends. A first motor 6 is arranged near the top of the side wall of the discharge box 4. The output end of the first motor 6 passes through the interior of the discharge box 4 and is provided with a gear 22. The gear 22 is connected to the The transmission gear ring 8 is meshed and connected; a second motor 17 is arranged on one end of the inner part of the discharge tube body 11, and a spiral blade column 16 is arranged 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 body 11. The center of the fixed box 9 is designed as an opening, and the extension material pipe 7 passes through the opening and is connected to the top center position of the discharge tube body 11; a drive box 29 and a first connecting plate 21 are respectively arranged on the opposite side walls inside the screening box 1, and a third motor 28 is arranged inside the drive box 29, and a threaded rod 27 is arranged on the output end of the third motor 28, and a connecting block 26 is screwed on the threaded rod 27, and the connecting block 26 passes through the drive box 29 and moves vertically on the drive box 29. A second connecting plate 24 is rotatably provided on one side of the connecting block 26, a screening mesh plate 20 is provided between the first connecting plate 21 and the second connecting plate 24, a vibration motor is provided at the bottom center of the screening mesh plate 20, a connecting column 25 is provided on one end of the screening mesh plate 20 corresponding to the first connecting plate 21, a connecting slot body 30 corresponding to the connecting column 25 is provided on the first connecting plate 21, the connecting column 25 penetrates the connecting slot body 30 and can move in the connecting slot body 30, a discharge box 23 is provided 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, and the discharge box 23 is connected to the screening box body 1; the connecting box body 3 is a square trumpet-shaped structure, and the size of the screening box body 1 is smaller than the discharge box body 4;The bottom edge of the unloading box 4 is equipped with a support leg 2; the blades on both sides of the center of the spiral blade column 16 are designed in opposite directions; 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 a shielding block 19; the end of the shielding block 19 is an inclined structure and is made of rubber material. ;

[0016] The detailed connection means are well-known in the art. The following mainly introduces the working principle and process, which are as follows: According to the instruction manual Figure 1-7It can be seen that when the present invention is in operation, the alumina powder (coarse material) first enters the interior of the discharge box 4 through the feed hopper 5, passes through the discharge pipe 11 and falls to the grinding assembly 12 in the discharge box 4 for grinding. At the same time, the first motor 6, the second motor 17 and the driving member 10 work, and the second motor 17 drives the spiral blade column 16 to rotate, driving the powder material to move in the discharge pipe 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, it can drive the transmission gear ring 8 to rotate. Here, according to the design position, It is known that the gear 22 and the transmission gear ring 8 are conical, and those skilled in the art will understand that the transmission gear ring 8 drives a pair of connecting cylinders 18 and the discharge tube 11 to rotate. Here, since the connecting cylinder 18 passes through the fixed box 9 and passes through the arc through hole 31, the first motor 6 is a forward and reverse motor, which drives the transmission gear ring 8 and the connecting cylinder 18 to reciprocate in the arc through hole 31, and then can drive the discharge tube 11 to reciprocate, that is, after rotating to a certain position, it returns, non-rotating, and evenly discharges the powder material onto the grinding assembly 12 to avoid accumulation, which is convenient for 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 here can adopt the existing technology. When the powder is ground, it will pass through the connecting box 3 into the screening box 1, and fall onto the screening mesh plate 20 for screening. The middle part of the screening mesh plate 20 has a plate design and is designed with a vibration motor. This design is a prior art. The vibration motor will drive the screening net on the screening mesh plate 20 to vibrate and screen. The screened powder falls through the bottom of the screening box 1. The bottom can be connected with a transport trolley, and the screened coarse material will remain on the screening net. At this time, the third motor 28 drives the threaded rod 27 to rotate. Since the connecting block 26 and the drive box 2 9 vertical sliding connection, therefore, the rotation of the threaded rod 27 can move the connecting block 26 screwed thereto upward. Since the connecting block 26 is rotationally connected to one end of the screening mesh plate 20, 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 to meet the position change of the screening mesh plate 20. Therefore, the upward movement of the connecting block 26 can move one end of the screening mesh plate 20 upward, so that the screening mesh plate 20 is distributed in an inclined shape as a whole. At this time, the residual powder can be conveniently moved to the discharge box 23 for subsequent centralized processing.The present invention can conveniently and quickly disperse the powder material entering the discharge box 4 through the feed hopper 5, and gradually drop it to various positions of the grinding component 12, so as to avoid the accumulation of powder in a certain place, thereby ensuring the grinding efficiency and effect of the grinding component 12 and reducing the damage to the grinding component 12. At the same time, when the powder falls onto the screening mesh plate 20, the powder on the screening mesh plate 20 is preliminarily screened by the vibration motor, and the screened powder can be guided to the discharge box 23 by changing the inclined distribution of the screening mesh plate 20, which is convenient for subsequent centralized processing, reduces the labor intensity of personnel, improves the degree of automation, and improves production efficiency.

[0017] Among them, the connecting box 3 is a square trumpet-shaped structure, the screening box 1 is smaller than the unloading box 4, and the bottom edge of the unloading box 4 is equipped with supporting legs 2. It is designed according to common sense and conventional means and has a reasonable structure.

[0018] The blades on both sides of the center of the spiral blade column 16 are designed in opposite directions, which can disperse the material entering the discharge pipe body 11 and improve the uniformity of the powder material discharge.

[0019] Among them, 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 a shielding block 19 to prevent powder from leaking from the connection. The end of the shielding block 19 is an inclined structure to reduce the impact on the movement of materials on the screening mesh plate 20. It is made of rubber material to improve the service life.

[0020] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that 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 screening box (1) is smaller in size than 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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