Grinding device for producing neodymium oxide

Abstract

The application belongs to the technical field of neodymium oxide production, and specifically discloses a grinding device for neodymium oxide production, which comprises a supporting frame, a driving motor connected to one side of the upper end of the supporting frame, a ball mill body connected to the output end of the driving motor, a feeding port formed in the middle of one side of the ball mill body, a material guiding ring connected to the side of the ball mill body and corresponding to the feeding port, and a conveying cylinder connected to the inner wall of the material guiding ring. The application can extract air inside the ball mill body and convey inert gas, effectively prevents the reaction of neodymium oxide powder with oxygen during the grinding process, avoids powder caking and oxidation, and can dry the neodymium oxide powder before it enters the ball mill, effectively removes moisture in the powder, prevents the powder from caking during the grinding process, and improves the grinding efficiency and product quality.

Description

Technical Field

[0001] This invention belongs to the field of neodymium oxide production technology, and specifically relates to a grinding device for neodymium oxide production. Background Technology

[0002] Neodymium oxide is a metal oxide that is insoluble in water but soluble in acids. It is mainly used as a colorant for glass and ceramics. Adding 1.5% to 2.5% nano-neodymium oxide to magnesium alloys or aluminum alloys can improve the high-temperature performance, airtightness and corrosion resistance of the alloys, and it is widely used in aerospace materials. Neodymium oxide grinding is a process that involves refining neodymium oxide powder. The main purpose of neodymium oxide grinding is to obtain finer and more uniform particles to meet the particle size requirements of different application fields. Fine particles can improve the activity of materials and improve their dispersibility in composite materials, thereby improving product performance. Ball mills are commonly used for grinding neodymium oxide, but currently, ball mills are not very effective at grinding neodymium oxide powder. Ball mills typically contain a large amount of oxygen, and the inlet of the ball mill is not well sealed, allowing gas to easily enter the grinding chamber. This causes the neodymium oxide powder to come into contact with oxygen during the ball milling process, resulting in an oxidation reaction. In addition, the powder fed into the ball mill is relatively moist, causing the grinding media inside the ball mill to stick to the neodymium oxide powder, which easily leads to poor grinding results. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a grinding apparatus for neodymium oxide production.

[0004] To achieve the above objectives, the present invention provides a grinding apparatus for neodymium oxide production, including a support frame, a drive motor connected to one side of the upper end of the support frame, a ball mill body connected to the output end of the drive motor, a feed inlet in the middle of one side of the ball mill body, a guide ring connected to one side of the ball mill body corresponding to the feed inlet, a conveying cylinder connected to the inner wall of the guide ring, one end of the conveying cylinder extending through to one side of the ball mill body, and a gas conveying assembly connected to one side of the outer wall of the conveying cylinder; The gas delivery assembly can extract air from inside the ball mill body and deliver nitrogen as an inert gas. A processing component is connected to one side of the upper end of the conveyor cylinder; The processing component can dry the neodymium oxide powder entering the ball mill body, preventing the neodymium oxide powder from clumping inside the ball mill body.

[0005] In the above technical solution, the gas conveying assembly further includes a connecting cylinder. The ball mill body is provided with air holes circumferentially on one side of the connecting cylinder. Moving rods are uniformly connected to one side of the connecting cylinder. One end of two moving rods extends through into the interior of the connecting cylinder. One end of two moving rods is connected to a moving plate. A blocking block is connected to one side of the moving plate at multiple air holes. The multiple blocking blocks can block multiple air holes.

[0006] In the above technical solution, further, each side of the movable plate is connected to a locking block, and a locking groove is provided on one side of the inner wall of the connecting cylinder corresponding to the two locking blocks. The shape of the locking block is adapted to the shape of the locking groove. The shape of the outer wall of the locking block and the shape of the inner wall of the locking groove are both arc-shaped. The locking block and the locking groove are used to lock the movable plate to one side of the inner wall of the connecting cylinder.

[0007] In the above technical solution, further, a gas supply pipe is connected to one side of the inner wall of the connecting cylinder, and connecting pipes are evenly connected circumferentially to one side of the gas supply pipe. The number of connecting pipes is six sets. The multiple connecting pipes are mainly used to extract gas from the inner wall of the connecting cylinder or to supply gas into the connecting cylinder. A suction pipe is connected to one side of the connecting cylinder, and a suction valve is connected to one side of the outer wall of the suction pipe. An air inlet pipe is connected to one side of the connecting cylinder, and an air inlet valve is connected to one side of the outer wall of the air inlet pipe.

[0008] In the above technical solution, a first connecting motor is further connected to the middle of one end of the conveying cylinder, and one end of the first connecting motor extends through into the inside of the conveying cylinder and is connected to a material conveying auger, which is located inside the conveying cylinder.

[0009] In the above technical solution, the processing component further includes a processing cylinder, with a heating collar connected to the outer wall of the processing cylinder. The processing cylinder is used to dry the neodymium oxide powder entering the ball mill body. A second connecting motor is connected to the middle of the upper end of the processing cylinder. The output end of the second connecting motor extends through into the interior of the processing cylinder and is connected to a rotating rod. A filter cylinder is connected to the lower end of the rotating rod. The filter cylinder has a mesh structure and is used to filter the neodymium oxide powder. The outer wall of the filter cylinder contacts the lower part of the inner wall of the processing cylinder. A scraper is connected to one side of the upper end of the filter cylinder. One side of the scraper contacts one side of the inner wall of the processing cylinder. A cleaning component is connected to the lower side of the inner wall of the processing cylinder. The cleaning component is used to brush away residual powder on the inner wall of the collecting cylinder.

[0010] In the above technical solution, the inner wall of the filter cartridge is further connected to a collecting cylinder, which has a mesh structure. The collecting cylinder processes the agglomerated neodymium oxide powder. The shape of the outer wall of the collecting cylinder is adapted to the shape of the inner wall of the filter cartridge. The collecting cylinder is sleeved on the outer wall of the rotating rod. The upper ends of the inner wall of the processing cylinder are connected to the first cylinders on both sides. The inner wall of the collecting cylinder is uniformly circumferentially connected with connecting teeth, and the upper end of the connecting teeth is set in an inverted V-shaped structure.

[0011] In the above technical solution, a sleeve is further connected to the middle of the upper end of the inner wall of the collecting cylinder. The sleeve is fitted onto the outer wall of the rotating rod. The shape of the sleeve is adapted to the shape of the outer wall of the rotating rod. The sleeve can slide on the outer wall of the rotating rod. Connecting blocks are connected to both sides of the outer wall of the sleeve. Rotating blocks are connected to the upper ends of the two connecting blocks. Rotating rings are connected to the lower ends of the two first cylinders. The rotating rings are fitted onto the outer wall of the rotating rod. The two rotating blocks slide at the lower ends of the rotating rings. Rotating grooves are opened at the lower ends of the rotating rings corresponding to the two rotating blocks. The upper ends of the two rotating blocks slide inside the rotating grooves.

[0012] In the above technical solution, the cleaning component further includes a second cylinder. The second cylinder is connected to one side of the lower end of the inner wall of the processing cylinder. A moving block is connected to the lower end of the second cylinder. A support plate is connected to one side of the lower end of the moving block. An inclined plate is rotatably connected to one side of the support plate via a rotating seat. A cleaning brush is connected to the lower part of both the inclined plate and the support plate. The cleaning brush is made of nylon and is used to remove residual powder from the inner wall of the collection cylinder.

[0013] In the above technical solution, a support rod is rotatably connected to the upper part of one side of the inclined plate, and a slider is rotatably connected to one end of the support rod. One end of the slider extends through to one side of the support plate. A third cylinder is connected to the lower end of the moving block. The lower end of the third cylinder is connected to the middle of the upper end of the slider. A groove is opened on one side of the support plate corresponding to the side of the slider. The slider slides inside the groove. The slider is rectangular and slidably connected to the groove.

[0014] Compared with the prior art, the present invention has the following beneficial effects: By using the gas delivery system to extract air from the ball mill body and deliver inert gas, the reaction between neodymium oxide powder and oxygen during the grinding process is effectively prevented, avoiding powder agglomeration and oxidation, thus improving grinding efficiency and product quality. At the same time, by reducing the oxygen content inside the ball mill body, the gas delivery system reduces the risk of oxidation and corrosion of internal metal components, extending the service life of the equipment. In addition, by delivering inert gas, the gas delivery system reduces the risk of fire or explosion caused by high temperature or friction inside the ball mill body, improving the safety of equipment operation. The processing components allow for the drying of neodymium oxide powder before it enters the ball mill, effectively removing moisture from the powder and preventing it from clumping during grinding. This ensures the powder's flowability and uniformity. Simultaneously, the filter cartridge and collecting cylinder can filter and pre-treat the powder, removing any clumping. The collecting cylinder is driven upward by the first cylinder, using centrifugal force to throw out the collected powder during its ascent. The clumped powder rotates with the collecting cylinder and is struck by multiple connecting teeth inside, breaking up the clumped powder and improving grinding efficiency and product quality. After the collection cylinder rises to a set height, the cleaning component automatically cleans its inner wall to prevent powder residue from caking. Once cleaning is complete, the cleaning component automatically moves to the top of the processing cylinder, reducing the frequency and difficulty of manual cleaning and improving the automation level of the equipment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure proposed in this invention; Figure 2 This is a cross-sectional view of the overall structure proposed in this invention; Figure 3 This is a schematic diagram of the pore opening structure proposed in this invention; Figure 4 This is a schematic diagram of the installation structure of the gas pipeline proposed in this invention; Figure 5 This is a schematic diagram of the installation structure of the movable plate proposed in this invention; Figure 6 This is a cross-sectional view of the processing cylinder proposed in this invention; Figure 7 This is a schematic diagram of the installation structure of the scraper proposed in this invention; Figure 8 This is a schematic diagram of the installation structure of the sleeve proposed in this invention; Figure 9 This is a schematic diagram of the structure proposed in this invention, in which a sleeve is fitted onto the outer wall of a rotating rod; Figure 10 This is a schematic diagram of the installation structure of the cleaning brush proposed in this invention; Figure 11 This is a schematic diagram of the cleaning component proposed in this invention; Figure 12 This is a schematic diagram of the structure proposed in this invention, showing the material collection cylinder rising to the bottom of the cleaning brush.

[0016] In the diagram: 1. Support frame; 2. Drive motor; 3. Ball mill body; 4. Feed inlet; 5. Guide ring; 6. Conveying cylinder; 7. Connecting cylinder; 8. Air hole; 9. Moving rod; 10. Moving plate; 11. Blocking block; 12. Locking block; 13. Locking groove; 14. Air supply pipe; 15. Suction pipe; 16. Air inlet pipe; 17. First connecting motor; 18. Conveying auger; 19. Processing cylinder; 20. Second connecting motor. 21. Motor; 22. Rotating rod; 23. Filter cartridge; 24. Scraper; 25. Collecting cylinder; 26. Sleeve; 27. Connecting block; 28. Rotating block; 29. ​​Rotating ring; 30. First cylinder; 31. Connecting tooth; 32. Second cylinder; 33. Moving block; 34. Support plate; 35. Rotating seat; 36. Inclined plate; 37. Cleaning brush; 38. Support rod; 39. Sliding block; 40. Slide groove. Detailed Implementation

[0017] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] like Figures 1-12 The grinding apparatus for neodymium oxide production shown includes a support frame 1. A drive motor 2 is connected to one side of the upper end of the support frame 1. The output end of the drive motor 2 is connected to a ball mill body 3. A guide ring is connected to the middle of the outer wall of the ball mill body 3. A movable ring is connected to the middle of the upper end of the support frame 1. The guide ring rotates inside the movable ring and is rotatably connected to the movable ring via ball bearings. A feed inlet 4 is opened in the middle of one side of the ball mill body 3. A guide ring 5 is connected to one side of the ball mill body 3 corresponding to the feed inlet 4. A conveying cylinder 6 is connected to the inner wall of the guide ring 5. A first connecting electric motor is connected to the middle of one end of the conveying cylinder 6. The first connecting motor 17 extends through one end into the inside of the conveying cylinder 6 and is connected to a conveying auger 18. The conveying auger 18 is located inside the conveying cylinder 6. One end of the conveying cylinder 6 extends through to one side of the ball mill body 3. An air conveying component is connected to one side of the outer wall of the conveying cylinder 6. The air conveying component can extract air from the inside of the ball mill body 3 and convey nitrogen as an inert gas. A processing component is connected to one side of the upper end of the conveying cylinder 6. The processing component can dry the neodymium oxide powder entering the ball mill body 3 to prevent the neodymium oxide powder entering the ball mill body 3 from clumping. One end of the conveying cylinder 6 is inserted into the feed inlet 4. The neodymium oxide powder to be ground is put into the processing component. The processing component dries the powder to prevent moisture from entering the powder. While the processing component is drying the neodymium oxide powder, the gas conveying component evacuates the air inside the ball mill body 3. After evacuation, inert gas is conveyed into the ball mill body 3 through the gas conveying component, which reduces the oxygen inside the ball mill body 3. After the processing component processes the neodymium oxide powder, it is put into the conveying cylinder 6. The first connecting motor 17 drives the conveying auger 18 to transport the neodymium oxide powder inside the conveying cylinder 6 into the ball mill body 3. The drive motor 2 drives the ball mill body 3 to work, and the ball mill body 3 grinds the neodymium oxide powder in its cavity.

[0019] The gas delivery assembly includes a connecting cylinder 7. The ball mill body 3 has circumferentially oriented air holes 8 on one side corresponding to the connecting cylinder 7. Moving rods 9 are evenly connected to one side of the connecting cylinder 7, with one end of each moving rod 9 extending into the interior of the connecting cylinder 7. Moving plates 10 are connected to one end of each moving rod 9. Blocking blocks 11 are connected to one side of each moving plate 10 at each of the multiple air holes 8, allowing the blocks to block the air holes 8. Locking blocks 12 are connected to one side of each moving plate 10. Locking grooves 13 are formed on one side of the inner wall of the connecting cylinder 7 at each of the two locking blocks 12. The shape of the locking blocks 12 matches the shape of the locking grooves 13. The outer wall of the 12 and the inner wall of the slot 13 are both arc-shaped. The 12 and the slot 13 are used to snap the moving plate 10 to one side of the inner wall of the connecting cylinder 7. A gas supply pipe 14 is connected to one side of the inner wall of the connecting cylinder 7. Connecting pipes are evenly connected circumferentially to one side of the gas supply pipe 14. There are six sets of connecting pipes. The multiple connecting pipes are mainly used to extract gas from the inner wall of the connecting cylinder 7 or to supply gas into the connecting cylinder 7. A suction pipe 15 is connected to one side of the connecting cylinder 7. A suction valve is connected to one side of the outer wall of the suction pipe 15. An air inlet pipe 16 is connected to one side of the connecting cylinder 7. An air inlet valve is connected to one side of the outer wall of the air inlet pipe 16. Connect one end of the extraction pipe 15 to the extraction pump, and the other end of the inlet pipe 16 to the inert gas delivery pipe. With the extraction valve open, the extraction pump operates, and air inside the ball mill body 3 enters the connecting cylinder 7 through multiple air holes 8. Air inside the connecting cylinder 7 then enters the gas delivery pipe 14 through multiple connecting pipes, and is discharged through the gas delivery pipe 14 and extraction pipe 15. Once the air inside the ball mill body 3 has been extracted, close the extraction valve and simultaneously open the inlet valve. The inert gas delivery pipe then delivers inert gas through the inlet pipe 16 and gas delivery pipe 14 to the connecting cylinder 7. Inert gas inside the connecting cylinder 7 enters the ball mill body 3 through multiple air holes 8, filling the ball mill body 3 with inert gas. Then, the air inlet valve is closed. By pushing the moving rod 9 to one side, the moving plate 10 and multiple blocking blocks 11 are moved to one side. The multiple blocking blocks 11 are inserted into the multiple air holes 8 respectively, and at the same time, two locking blocks 12 are locked into the locking groove 13, thereby blocking the multiple air holes 8 and preventing the neodymium oxide powder inside the ball mill body 3 from entering the connecting cylinder 7 through the air holes 8 when the ball mill body 3 is processing neodymium oxide powder.

[0020] The processing assembly includes a processing cylinder 19, with a heating ring connected to the outer wall of the processing cylinder 19. The processing cylinder 19 is used to dry the neodymium oxide powder entering the ball mill body 3. A second connecting motor 20 is connected to the middle of the upper end of the processing cylinder 19. The output end of the second connecting motor 20 extends through into the processing cylinder 19 and is connected to a rotating rod 21. A filter cylinder 22 with a mesh structure is connected to the lower end of the rotating rod 21 for filtering neodymium oxide powder. The outer wall of the filter cylinder 22 contacts the lower part of the inner wall of the processing cylinder 19. A scraper 23 is connected to one side of the upper end of the filter cylinder 22, and one side of the scraper 23 contacts one side of the inner wall of the processing cylinder 19. A cleaning assembly is connected to one side of the inner wall of the processing cylinder 19 for brushing off residual powder on the inner wall of the collecting cylinder 24. The collecting cylinder 24 with a mesh structure is connected to the inner wall of the filter cylinder 22 for processing agglomerated neodymium oxide powder. The shape of the outer wall is adapted to the shape of the inner wall of the filter cylinder 22. The collecting cylinder 24 is sleeved on the outer wall of the rotating rod 21. The upper ends of the inner wall of the processing cylinder 19 are connected to the first cylinder 29 on both sides. The inner wall of the collecting cylinder 24 is evenly connected with connecting teeth 30 in a circumferential direction. The upper end of the connecting teeth 30 is set with an inverted V-shaped structure. The upper middle part of the inner wall of the collecting cylinder 24 is connected to the sleeve 25. The sleeve 25 is sleeved on the outer wall of the rotating rod 21. The shape of the sleeve 25 is adapted to the shape of the outer wall of the rotating rod 21. The sleeve 25 can slide on the outer wall of the rotating rod 21. The outer walls of the sleeve 25 are connected to the connecting blocks 26 on both sides. The upper ends of the two connecting blocks 26 are connected to the rotating blocks 27. The lower ends of the two first cylinders 29 are connected to the rotating rings 28. The rotating rings 28 are sleeved on the outer wall of the rotating rod 21. The two rotating blocks 27 slide at the lower end of the rotating rings 28. The lower end of the rotating rings 28 is provided with rotating grooves corresponding to the two rotating blocks 27. The upper ends of the two rotating blocks 27 slide inside the rotating grooves. A feed pipe is connected to one side of the upper end of the processing cylinder 19. A feed valve is installed on the feed pipe. Neodymium oxide powder enters the processing cylinder 19 through the feed pipe. The interior of the processing cylinder 19 is heated by a heating ring. The second connecting motor 20 drives the rotating rod 21 to rotate, which in turn drives the filter cylinder 22 and scraper 23 to rotate. The scraper 23 can scrape off the powder adhering to the inner wall of the processing cylinder 19. The outer walls of the rotating rod 21 and the inner walls of the sleeve 25 are both semi-circular arc-shaped. The sleeve 25 is then engaged with the outer wall of the rotating rod 21. As the rotating rod 21 rotates, the sleeve 25 rotates with it, which in turn drives the collecting cylinder 24 to rotate. When the sleeve 25 rotates, it drives the two connecting blocks 26 and the two rotating blocks 27 to rotate. The two rotating blocks 27 slide circumferentially inside the rotating groove below the rotating ring 28. The cross-sectional shape of the two rotating blocks 27 and the cross-sectional shape of the rotating ring 28 are both inverted T-shaped structures. When the powder accumulates in the collecting cylinder... When the material is above 24, the two first cylinders 29 pull the rotating ring 28 upward. The upward movement of the rotating ring 28 can drive the rotating block 27, the connecting block 26 and the sleeve 25 to move upward, which can pull the collecting cylinder 24 upward. Since the rotating rod 21 is always rotating, the sleeve 25 and the collecting cylinder 24 are also rotating. The powder inside the collecting cylinder 24 is thrown out under the centrifugal force of the collecting cylinder 24. The powder accumulated at the bottom can be thrown back to the inner wall of the processing cylinder 19, which can improve the drying effect of the powder. At the same time, the clumped powder remains inside the collecting cylinder 24. When the collecting cylinder 24 rotates, multiple connecting teeth 30 inside the collecting cylinder 24 strike and disperse the clumped powder to ensure that the powder is uniform. The dried powder falls into the conveying cylinder 6 through the filter cylinder 22. The powder inside the conveying cylinder 6 is conveyed to the ball mill body 3 through the conveying auger 18 for grinding. The cleaning component is mainly used to clean the inner wall of the collecting cylinder 24 to avoid the residue of clumped powder.

[0021] The cleaning assembly includes a second cylinder 31. The second cylinder 31 is connected to the lower end of the inner wall of the processing cylinder 19. The lower end of the second cylinder 31 is connected to a moving block 32. The lower end of the moving block 32 is connected to a support plate 33. The middle of one side of the support plate 33 is rotatably connected to an inclined plate 35 via a rotating seat 34. Cleaning brushes 36 are connected to the lower parts of both the inclined plate 35 and the support plate 33. The cleaning brushes 36 are made of nylon and are used to remove residual powder from the inner wall of the collection cylinder 24. A support rod 37 is rotatably connected to the upper part of one side of the inclined plate 35. A slider 38 is rotatably connected to one end of the support rod 37. One end of the slider 38 extends through to one side of the support plate 33. A third cylinder 39 is connected to the lower end of the moving block 32. The lower end of the third cylinder 39 is connected to the middle of the upper end of the slider 38. A groove 40 is opened on one side of the support plate 33 corresponding to the side of the slider 38. The slider 38 slides inside the groove 40. The slider 38 is rectangular and slidably connected to the groove 40. When the collecting cylinder 24 rises to the set height, the second cylinder 31 drives the moving block 32 to descend, causing the cleaning brush 36 on one side of the support plate 33 to contact one side of the inner wall of the collecting cylinder 24. The cleaning brush 36 on one side of the inclined plate 35, through the cooperation of the rotating seat 34 and the inclined plate 35, brushes the inner wall of the collecting cylinder 24. The support rod 37 and the slider 38 slide through the sliding groove 40, ensuring that the cleaning brush 36 on one side of the inclined plate 35 can contact one side of the inner wall of the collecting cylinder 24, thus ensuring that both cleaning brushes 36 contact all parts of one side of the inner wall of the collecting cylinder 24. The collecting cylinder 24 and sleeve 25 rotate with the rotating rod 21. The cleaning brush 36 brushes the inner wall of the collecting cylinder 24 and its multiple connecting teeth 30. After cleaning, the third cylinder 39 drives the slider 38 to move downward. The slider 38 slides inside the slide groove 40 and is pulled back to its original position by the support rod 37. The cleaning brush 36 on one side of the inclined plate 35 disengages from the inner wall of the collecting cylinder 24 and drives the support plate 33 to move upward by the second cylinder 31, so that the cleaning component moves to the upper part of the processing cylinder 19, waiting for the next cleaning operation.

[0022] Working principle: When using this device, neodymium oxide powder enters the processing cylinder 19 through the feed pipe. A heating ring is provided on the outer wall of the processing cylinder 19 to heat the inside of the processing cylinder 19, removing moisture from the neodymium oxide powder. Inside the processing cylinder 19 are a filter cylinder 22 and a collection cylinder 24. The filter cylinder 22 has a mesh structure for filtering the powder, while the collection cylinder 24 is used to process agglomerated powder. A second connecting motor 20 drives a rotating rod 21 to rotate, which in turn drives the filter cylinder 22 and scraper 23 to rotate together. The scraper 23 can scrape off the powder adhering to the inner wall of the processing cylinder 19, ensuring... To ensure uniform drying of the powder, the rotating rod 21 rotates while driving the sleeve 25 to rotate, which in turn drives the collecting cylinder 24 to rotate. During rotation, the connecting teeth 30 inside the collecting cylinder 24 strike and disperse the clumps of powder, ensuring uniform powder distribution. When the powder accumulates above the collecting cylinder 24, the first cylinder 29 pulls the rotating ring 28 upward, causing the rotating block 27, connecting block 26, and sleeve 25 to move upward, which in turn causes the collecting cylinder 24 to rise. As the collecting cylinder 24 rotates, the powder is thrown out under the action of centrifugal force and re-enters the inner wall of the processing cylinder 19 for further drying. When the collection cylinder 24 rises to the set height, the cleaning component starts to work. The second cylinder 31 drives the moving block 32 to descend, and the cleaning brush 36 on the support plate 33 contacts the inner wall of the collection cylinder 24. The third cylinder 39 drives the slider 38 to move upward. The support rod 37 and the slider 38 slide through the slide groove 40 to ensure that the cleaning brush 36 on one side of the inclined plate 35 can contact the inner wall of the collection cylinder 24. The collection cylinder 24 and the sleeve 25 rotate with the rotating rod 21. The cleaning brush 36 brushes the inner wall of the collection cylinder 24 and its internal connecting teeth 30 to remove residual agglomerated powder. After cleaning, the third cylinder 39 drives the slider 38 to move downward, and the cleaning brush 36 on one side of the inclined plate 35 disengages from the inner wall of the collection cylinder 24. The second cylinder 31 drives the support plate 33 to move upward, and the cleaning component returns to the upper part of the processing cylinder 19, waiting for the next cleaning operation. During the drying process, the gas supply assembly starts working. The suction pipe 15 is connected to the suction pump, and the suction valve is opened. The air inside the ball mill body 3 enters the connecting cylinder 7 through the air hole 8, and then is discharged through the connecting pipe and the gas supply pipe 14. When the air inside the ball mill body 3 is completely evacuated, the suction valve is closed and the inlet valve is opened. Inert gas enters the connecting cylinder 7 through the inlet pipe 16 and the gas supply pipe 14, and then enters the ball mill body 3 through the air hole 8, ensuring that the ball mill is filled with inert gas, reducing the oxygen content, and preventing the neodymium oxide powder from oxidizing during the grinding process. After the inert gas is filled, the moving rod 9 is pushed, which moves the moving plate 10 and the blocking block 11 toward the air hole 8. The blocking block 11 is inserted into the air hole 8, and the locking block 12 is locked into the locking groove 13, ensuring that the air hole 8 is completely blocked to prevent powder from entering the connecting cylinder 7. After drying, neodymium oxide powder falls through filter cartridge 22 into conveying cylinder 6. The first connecting motor 17 drives the conveying auger 18 to transport the powder into the ball mill body 3. The drive motor 2 drives the ball mill body 3 to rotate. The grinding media inside the ball mill body 3 grinds the neodymium oxide powder to achieve the required fineness. The guide ring on the outer wall of the ball mill body 3 and the moving ring on the support frame 1 are rotatably connected by ball bearings to ensure the stability of the ball mill body 3 during rotation.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A grinding apparatus for neodymium oxide production, comprising a support frame (1), characterized in that, The upper end of the support frame (1) is connected to a drive motor (2), the output end of the drive motor (2) is connected to the ball mill body (3), the ball mill body (3) has a feed inlet (4) in the middle of one side, the ball mill body (3) has a guide ring (5) connected to the feed inlet (4) on one side, the inner wall of the guide ring (5) is connected to a conveying cylinder (6), one end of the conveying cylinder (6) extends through to one side of the ball mill body (3), and the outer wall of the conveying cylinder (6) is connected to a gas conveying component. The gas delivery assembly can extract air from inside the ball mill body (3) and deliver nitrogen as an inert gas; A processing component is connected to one side of the upper end of the conveying cylinder (6); The processing component can dry the neodymium oxide powder entering the ball mill body (3) to prevent the neodymium oxide powder entering the ball mill body (3) from clumping.

2. The grinding apparatus for neodymium oxide production according to claim 1, characterized in that, The gas delivery assembly includes a connecting cylinder (7). The ball mill body (3) is provided with air holes (8) on one side of the connecting cylinder (7) in a circumferential manner. Moving rods (9) are evenly connected to one side of the connecting cylinder (7). One end of the two moving rods (9) extends through into the interior of the connecting cylinder (7). One end of the two moving rods (9) is connected to a moving plate (10). A blocking block (11) is connected to one side of the moving plate (10) at each of the multiple air holes (8). The multiple blocking blocks (11) can block the multiple air holes (8).

3. The grinding apparatus for neodymium oxide production according to claim 2, characterized in that, Each side of the movable plate (10) is connected to a locking block (12). The inner wall of the connecting cylinder (7) is provided with a slot (13) corresponding to the two locking blocks (12). The shape of the locking block (12) matches the shape of the slot (13). The outer wall of the locking block (12) and the inner wall of the slot (13) are both arc-shaped. The locking block (12) and the slot (13) are used to lock the movable plate (10) to one side of the inner wall of the connecting cylinder (7).

4. A grinding apparatus for neodymium oxide production according to claim 2, characterized in that, A gas supply pipe (14) is connected to one side of the inner wall of the connecting cylinder (7). A connecting pipe is evenly connected to one side of the gas supply pipe (14) in a circumferential direction. There are six sets of connecting pipes. The multiple connecting pipes are mainly used to extract gas from the inner wall of the connecting cylinder (7) or to transport gas into the connecting cylinder (7). A suction pipe (15) is connected to one side of the connecting cylinder (7). A suction valve is connected to one side of the outer wall of the suction pipe (15). An air inlet pipe (16) is connected to one side of the connecting cylinder (7). An air inlet valve is connected to one side of the outer wall of the air inlet pipe (16).

5. A grinding apparatus for neodymium oxide production according to claim 1, characterized in that, The first connecting motor (17) is connected to the middle of one end of the conveying cylinder (6). One end of the first connecting motor (17) extends through into the inside of the conveying cylinder (6) and is connected to a conveying auger (18). The conveying auger (18) is located inside the conveying cylinder (6).

6. The grinding apparatus for neodymium oxide production according to claim 1, characterized in that, The processing assembly includes a processing cylinder (19), with a heating ring connected to the outer wall of the processing cylinder (19). The processing cylinder (19) is used to dry neodymium oxide powder entering the ball mill body (3). A second connecting motor (20) is connected to the middle of the upper end of the processing cylinder (19). The output end of the second connecting motor (20) extends through into the processing cylinder (19) and is connected to a rotating rod (21). A filter cylinder (22) is connected to the lower end of the rotating rod (21). The filter cylinder (22) has a mesh structure and is used to filter neodymium oxide powder. The outer wall of the filter cylinder (22) is in contact with the lower part of the inner wall of the processing cylinder (19). A scraper (23) is connected to one side of the upper end of the filter cylinder (22). One side of the scraper (23) is in contact with one side of the inner wall of the processing cylinder (19). A cleaning assembly is connected to one side of the inner wall of the processing cylinder (19). The cleaning assembly is used to brush away residual powder on the inner wall of the collecting cylinder (24).

7. A grinding apparatus for neodymium oxide production according to claim 6, characterized in that, The filter cartridge (22) is connected to a collection cylinder (24) on its inner wall. The collection cylinder (24) has a mesh structure and is used to process agglomerated neodymium oxide powder. The shape of the outer wall of the collection cylinder (24) is adapted to the shape of the inner wall of the filter cartridge (22). The collection cylinder (24) is sleeved on the outer wall of the rotating rod (21). The upper end of the processing cylinder (19) is connected to the first cylinder (29) on both sides. The inner wall of the collection cylinder (24) is evenly connected with connecting teeth (30) in a circumferential direction. The upper end of the connecting teeth (30) is set in an inverted V-shaped structure.

8. A grinding apparatus for neodymium oxide production according to claim 7, characterized in that, A sleeve (25) is connected to the middle of the upper end of the inner wall of the collecting cylinder (24). The sleeve (25) is fitted onto the outer wall of the rotating rod (21). The shape of the sleeve (25) is adapted to the shape of the outer wall of the rotating rod (21). The sleeve (25) can slide on the outer wall of the rotating rod (21). Connecting blocks (26) are connected to both sides of the outer wall of the sleeve (25). Rotating blocks (27) are connected to the upper ends of the two connecting blocks (26). Rotating rings (28) are connected to the lower ends of the two first cylinders (29). The rotating rings (28) are fitted onto the outer wall of the rotating rod (21). The two rotating blocks (27) slide at the lower end of the rotating rings (28). Rotating grooves are opened at the lower end of the rotating rings (28) corresponding to the two rotating blocks (27). The upper ends of the two rotating blocks (27) slide inside the rotating grooves.

9. A grinding apparatus for neodymium oxide production according to claim 6, characterized in that, The cleaning assembly includes a second cylinder (31). The second cylinder (31) is connected to one side of the lower end of the inner wall of the processing cylinder (19). The lower end of the second cylinder (31) is connected to a moving block (32). The lower end of the moving block (32) is connected to a support plate (33). The middle part of one side of the support plate (33) is rotatably connected to an inclined plate (35) via a rotating seat (34). The lower part of one side of the inclined plate (35) and one side of the support plate (33) are both connected to a cleaning brush (36). The cleaning brush (36) is made of nylon and is used to remove residual powder from the inner wall of the collecting cylinder (24).

10. A grinding apparatus for neodymium oxide production according to claim 9, characterized in that, A support rod (37) is rotatably connected to the upper part of one side of the inclined plate (35). A slider (38) is rotatably connected to one end of the support rod (37). One end of the slider (38) extends through to one side of the support plate (33). A third cylinder (39) is connected to one side of the lower end of the moving block (32). The lower end of the third cylinder (39) is connected to the middle of the upper end of the slider (38). A groove (40) is provided on one side of the support plate (33) corresponding to one side of the slider (38). The slider (38) slides inside the groove (40). The slider (38) is rectangular and slidably connected to the groove (40).

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