A neodymium iron boron high-speed mixer

Abstract

This utility model relates to the field of raw material mixing technology, and in particular to a high-speed NdFeB mixer. The technical solution includes a mixing tank with a feeding port fixed to its top. This utility model uses a motor to drive a first bevel gear, a second bevel gear, a cylinder, and a spiral plate to rotate, which can mix NdFeB raw materials and gradually bring the NdFeB raw materials upwards. Inert gas can be added to the mixing tank through multiple air inlets; the gas rushes towards the NdFeB raw materials, promoting further mixing. The rotation of the first bevel gear also drives the rotation of the third bevel gear, which in turn drives the transmission rod and the stirring blade. The rotation of the stirring blade mixes large particles of raw material at the bottom of the mixing tank and also knocks large particles away. These large particles are further mixed evenly by the mixing and driving action of the spiral plate, solving the problem of large powder particles at the bottom of the mixer being difficult to mix.

Description

Technical Field

[0001] This utility model relates to the field of raw material mixing technology, and in particular to a neodymium iron boron high-speed mixer. Background Technology

[0002] Neodymium iron boron (NdFeB) is currently the most widely used rare-earth permanent magnet material, composed of neodymium, iron, and boron. During NdFeB production, a high-speed mixer is required to crush and mix the raw materials. The NdFeB high-speed mixer is a key piece of equipment for preparing NdFeB permanent magnet materials, primarily used to mix and homogenize NdFeB magnetic powder with other additives, such as lubricants and antioxidants, ensuring uniformity and magnetic properties in subsequent pressing or sintering processes.

[0003] In the prior art, when NdFeB magnetic powder and other additives are stirred and mixed, the larger powder particles tend to accumulate at the bottom of the mixer. The mixer is usually stirred by a spiral stirring rod, but the spiral stirring rod is difficult to mix the large powder particles at the bottom, which easily causes the large powder particles to accumulate at the bottom of the mixer. Therefore, this application proposes a high-speed NdFeB mixer. Utility Model Content

[0004] The purpose of this invention is to address the problem in the prior art that large particles of powder at the bottom of the mixer are difficult to mix, and to propose a neodymium iron boron high-speed mixer.

[0005] The technical solution of this utility model: A neodymium iron boron high-speed mixer includes a mixing tank. A feeding port is fixedly connected to the top of the mixing tank. Multiple sets of air inlet pipes are fixedly connected to the outer wall of the mixing tank. An air outlet is installed at the top of the mixing tank. A discharge valve is fixedly connected to the bottom of the mixing tank. A mounting plate is fixedly connected to the top of the mixing tank. A motor is fixedly connected to one side of the mounting plate. A first bevel gear is fixedly connected to the output shaft of the motor. A second bevel gear meshes with the bottom of the first bevel gear. A cylinder is fixedly connected to the bottom of the second bevel gear. The cylinder is rotatably connected to the inside of the mixing tank. A spiral plate is fixedly connected to the outer wall of the cylinder. A third bevel gear meshes with the top of the first bevel gear. A transmission rod is fixedly connected to the bottom of the third bevel gear. The transmission rod is rotatably disposed on the inner wall of the cylinder. A stirring blade is fixedly connected to the bottom of the transmission rod. The stirring blade is disposed at the bottom of the inner wall of the mixing tank.

[0006] Optionally, the outer wall of the transmission rod is provided with a groove, the inner wall of the cylinder is fixedly connected with a sealing ring, the sealing ring is disposed on the inner wall of the groove, the bottom of the cylinder is fixedly connected with a side plate, the outer wall of the transmission rod is fixedly connected with a support plate, and the support plate is disposed at the bottom of the side plate.

[0007] Optionally, a temperature sensor is fixedly connected to the top of the mixing tank, and a display instrument is installed on the top of the temperature sensor.

[0008] Optionally, a cooling shroud is fixed to the outer wall of the mixing tank, an inlet pipe is fixed to the top of one side of the cooling shroud, and an outlet pipe is installed at the bottom of the cooling shroud.

[0009] Optionally, a conductive plate is fixed to the outer wall of the mixing tank. The conductive plate is annular in shape and made of copper. Multiple sets of the conductive plates are arranged in parallel inside the cooling shroud.

[0010] Optionally, a horizontal plate is fixed to the outer wall of the cooling cover, a support column is fixed to the bottom of the horizontal plate, and a base plate is fixed to the bottom of the support column. The base plate is annular in shape.

[0011] Optionally, a protective cover is fixed to the center of the top of the mixing tank, and the first bevel gear, the second bevel gear and the third bevel gear are all located inside the protective cover, with the third bevel gear rotatably connected to the top of the inner wall of the protective cover.

[0012] Compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0013] This invention uses a motor to drive a first bevel gear, a second bevel gear, a cylinder, and a spiral plate to rotate, which can mix NdFeB raw materials. Simultaneously, it gradually brings the NdFeB raw materials to the top. Inert gas can be added to the mixing tank through multiple air inlets. When the gas rushes towards the NdFeB raw materials, it promotes further mixing. The rotation of the first bevel gear also drives the third bevel gear, which in turn drives the transmission rod and the stirring plate. The rotating stirring plate mixes large particles of raw materials at the bottom of the mixing tank and also knocks them away. These large particles are further mixed evenly by the mixing and driving action of the spiral plate, solving the problem of large powder particles at the bottom of the mixer being difficult to mix. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a neodymium iron boron high-speed mixer;

[0015] Figure 2 This is a schematic diagram of the overall cross-sectional structure of a neodymium iron boron high-speed mixer;

[0016] Figure 3 for Figure 2 A magnified structural diagram at point A;

[0017] Figure 4 for Figure 2 A magnified structural diagram at point B;

[0018] Figure 5 for Figure 4 A magnified structural diagram at point C;

[0019] Figure 6 A schematic diagram of the cylinder and transmission rod structure;

[0020] Figure 7 This is a schematic diagram showing the disassembled structure of the cylinder and transmission rod.

[0021] Reference numerals: 1. Mixing tank; 2. Feed port; 3. Air outlet; 4. Discharge valve; 5. Mounting plate; 6. Motor; 7. First bevel gear; 8. Second bevel gear; 9. Cylinder; 10. Spiral plate; 11. Third bevel gear; 12. Transmission rod; 13. Mixing blade; 14. Groove; 15. Sealing ring; 16. Side plate; 17. Support plate; 18. Temperature sensor; 19. Cooling cover; 20. Water inlet pipe; 21. Water outlet pipe; 22. Conducting plate; 23. Horizontal plate; 24. Support column; 25. Base plate; 26. Protective cover; 27. Air inlet pipe. Detailed Implementation

[0022] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0023] like Figures 1-7As shown, this utility model proposes a high-speed neodymium iron boron mixer, including a mixing tank 1. A feeding port 2 is fixedly connected to the top of the mixing tank 1. Multiple sets of air inlets 27 are fixedly connected to the outer wall of the mixing tank 1. An air outlet 3 is installed at the top of the mixing tank 1. A discharge valve 4 is fixedly connected to the bottom of the mixing tank 1. A mounting plate 5 is fixedly connected to the top of the mixing tank 1. A motor 6 is fixedly connected to one side of the mounting plate 5. A first bevel gear 7 is fixedly connected to the output shaft of the motor 6. A second bevel gear 8 meshes with the bottom of the first bevel gear 7. A cylinder 9 is fixedly connected to the bottom of the second bevel gear 8. The cylinder 9 is rotatably connected to the inside of the mixing tank 1. A spiral plate 10 is fixedly connected to the outer wall of the cylinder 9. A spiral plate 10 meshes with the top of the first bevel gear 7. The third bevel gear 11 is fixedly connected to the center of the top of the mixing tank 1 by a protective cover 26. The first bevel gear 7, the second bevel gear 8, and the third bevel gear 11 are all located inside the protective cover 26. The third bevel gear 11 is rotatably connected to the top of the inner wall of the protective cover 26. A transmission rod 12 is fixedly connected to the bottom of the third bevel gear 11. The transmission rod 12 is rotatably located on the inner wall of the cylinder 9. A stirring plate 13 is fixedly connected to the bottom of the transmission rod 12. The stirring plate 13 is located at the bottom of the inner wall of the mixing tank 1. To solve the problem of large particles of powder at the bottom of the mixer being difficult to mix, when it is necessary to process NdFeB raw materials, the NdFeB raw materials can be put into the mixing tank 1 through the feeding port 2, and then the motor 6 can be started. The first bevel gear 7 is driven to rotate. When the first bevel gear 7 rotates, it drives the second bevel gear 8 on one side to rotate. The cylinder 9 and spiral plate 10 at the bottom of the second bevel gear 8 also rotate together. As the spiral plate 10 rotates, it mixes the NdFeB raw material and gradually brings it upwards. Inert gas can be added to the mixing tank 1 through multiple air inlets 27. When the gas rushes towards the NdFeB raw material, it promotes further mixing. Simultaneously, the rotation of the first bevel gear 7 drives the meshing third bevel gear 11 above to rotate, and the rotation direction of the third bevel gear 11 is opposite to that of the second bevel gear 8. A protective device is installed at the top of the mixing tank 1... Cover 26 provides protection for the meshing between the first bevel gear 7, the second bevel gear 8, and the third bevel gear 11. When the third bevel gear 11 rotates, it drives the transmission rod 12 and the stirring blade 13 at the bottom to rotate together. The transmission rod 12 is located on the inner wall of the cylinder 9, so it will not interfere with the rotation of the cylinder 9 and the spiral plate 10. Since the stirring blade 13 is located at the bottom of the mixing tank 1, when the stirring blade 13 rotates, it is beneficial to mix the large particles of raw material at the bottom of the mixing tank 1 and knock the large particles of raw material away. The large particles of raw material that fly away can be mixed and driven by the mixing and driving action of the spiral plate 10 to promote uniform mixing of raw materials. At the same time, the rotation direction of the stirring blade 13 and the spiral plate 10 is opposite, so it can promote the mixing of large particles of raw materials.

[0024] Secondly, such as Figures 4-5To address the sealing issue between the transmission rod 12 and the cylinder 9, a groove 14 is provided on the outer wall of the transmission rod 12, while a sealing ring 15 is fixedly connected to the inner wall of the cylinder 9. The sealing ring 15 is located on the inner wall of the groove 14. A side plate 16 is fixedly connected to the bottom of the cylinder 9, and a support plate 17 is fixedly connected to the outer wall of the transmission rod 12. The support plate 17 is located at the bottom of the side plate 16. By providing a sealing ring 15 inside the cylinder 9, the connection between the cylinder 9 and the transmission rod 12 can be effectively sealed by the cooperation of two sets of sealing rings 15 and the groove 14 when the transmission rod 12 and the cylinder 9 rotate. The sealing performance between the cylinder 9 and the transmission rod 12 can be improved by providing the support plate 17 and the side plate 16.

[0025] Furthermore, such as Figure 2 and Figure 4 To address the issue of high temperatures during mixing, a temperature sensor 18 is fixedly attached to the top of the mixing tank 1. A display instrument is mounted on the top of the temperature sensor 18. A cooling shroud 19 is fixedly attached to the outer wall of the mixing tank 1. A water inlet pipe 20 is fixedly attached to the top of one side of the cooling shroud 19, and a water outlet pipe 21 is installed at the bottom of the cooling shroud 19. A conductive plate 22, which is annular in shape and made of copper, is fixedly attached to the outer wall of the mixing tank 1. Multiple sets of conductive plates 22 are arranged in parallel inside the cooling shroud 19. By installing the temperature sensor 18 at the top of the mixing tank 1, the temperature of the NdFeB raw material can be controlled. During mixing, the temperature inside the mixing tank 1 is monitored in real time. If the temperature inside the mixing tank 1 is too high, cooling water can be added to the cooling cover 19 through the water inlet pipe 20, and the water outlet pipe 21 can be sealed through the valve. After the cooling cover 19 is filled with cooling water, the mixing tank 1 can be cooled down. By setting multiple sets of annular conduction plates 22 on the outside of the mixing tank 1, the heat inside the mixing tank 1 can be transferred to the conduction plates 22. Since the conduction plates 22 are made of copper, the heat conduction effect of the conduction plates 22 can be improved. When the cooling water comes into contact with multiple sets of conduction plates 22, the cooling efficiency of the mixing tank 1 can be improved, and the temperature of the NdFeB raw material is prevented from being too high during mixing.

[0026] Finally, as Figure 1 A horizontal plate 23 is fixed to the outer wall of the cooling cover 19. A support column 24 is fixed to the bottom of the horizontal plate 23. A base plate 25 is fixed to the bottom of the support column 24. The base plate 25 is annular in shape. By setting the horizontal plate 23 on the outside of the cooling cover 19, it is convenient to install the support column 24. By setting the support column 24 and the base plate 25, when mixing NdFeB raw materials, the annular base plate 25 and the three sets of support columns 24 can provide stable support for the mixing tank 1.

[0027] In this embodiment, to solve the problem of large powder particles at the bottom of the mixer being difficult to mix, when it is necessary to mix the NdFeB raw material, the NdFeB raw material can be put into the mixing tank 1 through the feeding port 2. Then, the motor 6 is started, causing the motor 6 to drive the first bevel gear 7 to rotate. When the first bevel gear 7 rotates, it will drive the second bevel gear 8 on one side to rotate. The cylinder 9 and the spiral plate 10 at the bottom of the second bevel gear 8 will also rotate together. When the spiral plate 10 rotates, it will mix the NdFeB raw material and gradually bring the NdFeB raw material to the top. Inert gas can be added into the mixing tank 1 through multiple sets of air inlet pipes 27. The gas, when it rushes towards the NdFeB raw material, promotes further mixing of the NdFeB raw material. Simultaneously, the rotation of the first bevel gear 7 drives the upper meshing third bevel gear 11 to rotate, causing the rotation direction of the third bevel gear 11 to be opposite to that of the second bevel gear 8. A protective cover 26 is provided at the top of the mixing tank 1 to protect the meshing between the first bevel gear 7, the second bevel gear 8, and the third bevel gear 11. When the third bevel gear 11 rotates, it drives the bottom transmission rod 12 and the stirring blade 13 to rotate together. The transmission rod 12 is located on the inner wall of the cylinder 9, thus it does not interfere with the cylinder 9 and the stirring blade. The rotation of the spiral plate 10, through the cooperation of two sets of sealing rings 15 and grooves 14, provides a sealing effect at the connection between the cylinder 9 and the transmission rod 12. The sealing performance between the cylinder 9 and the transmission rod 12 is improved by setting the support plate 17 and side plate 16. Since the stirring plate 13 is located at the bottom of the mixing tank 1, its rotation facilitates the mixing of large particles at the bottom of the mixing tank 1 and simultaneously dislodging them. These dislodged particles are then mixed and driven by the spiral plate 10, promoting uniform mixing. Furthermore, the stirring plate 13 rotates in the opposite direction to the spiral plate 10, thus promoting... Large-particle raw materials are mixed. A temperature sensor 18 is installed on the top of the mixing tank 1 to monitor the temperature inside the mixing tank 1 in real time. When the temperature inside the mixing tank 1 is too high, cooling water can be added to the cooling cover 19 through the water inlet pipe 20 and the water outlet pipe 21 can be sealed through the valve. After the cooling cover 19 is filled with cooling water, the mixing tank 1 can be cooled. By installing multiple sets of copper conductive plates 22 on the outside of the mixing tank 1, the heat conduction effect of the conductive plates 22 can be improved. When the cooling water comes into contact with the multiple sets of conductive plates 22, it is easier to improve the efficiency of cooling the mixing tank 1 and prevent the NdFeB raw materials from getting too hot during mixing.

[0028] The above specific embodiments are merely several optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A high-speed neodymium iron boron mixer, comprising a mixing tank (1), a feeding port (2) fixedly connected to the top of the mixing tank (1), multiple sets of air inlet pipes (27) fixedly connected to the outer wall of the mixing tank (1), an air outlet (3) installed at the top of the mixing tank (1), and a discharge valve (4) fixedly connected to the bottom of the mixing tank (1), characterized in that: A mounting plate (5) is fixed to the top of the mixing tank (1). A motor (6) is fixed to one side of the mounting plate (5). A first bevel gear (7) is fixed to the output shaft of the motor (6). A second bevel gear (8) meshes with the bottom of the first bevel gear (7). A cylinder (9) is fixed to the bottom of the second bevel gear (8). The cylinder (9) is rotatably connected to the inside of the mixing tank (1). A spiral plate (10) is fixed to the outer wall of the cylinder (9). A third bevel gear (11) meshes with the top of the first bevel gear (7). A transmission rod (12) is fixed to the bottom of the third bevel gear (11). The transmission rod (12) is rotatably disposed on the inner wall of the cylinder (9). A stirring blade (13) is fixed to the bottom of the transmission rod (12). The stirring blade (13) is disposed at the bottom of the inner wall of the mixing tank (1).

2. The neodymium iron boron high-speed mixer according to claim 1, characterized in that, The outer wall of the transmission rod (12) is provided with a groove (14), the inner wall of the cylinder (9) is fixed with a sealing ring (15), the sealing ring (15) is disposed on the inner wall of the groove (14), the bottom of the cylinder (9) is fixed with a side plate (16), the outer wall of the transmission rod (12) is fixed with a support plate (17), and the support plate (17) is disposed at the bottom of the side plate (16).

3. A high-speed NdFeB mixer according to claim 2, characterized in that, A temperature sensor (18) is fixed to the top of the mixing tank (1), and a display instrument is installed on the top of the temperature sensor (18).

4. A high-speed neodymium iron boron mixer according to claim 3, characterized in that, A cooling shroud (19) is fixed to the outer wall of the mixing tank (1), and a water inlet pipe (20) is fixed to the top of one side of the cooling shroud (19). A water outlet pipe (21) is installed at the bottom of the cooling shroud (19).

5. A neodymium iron boron high-speed mixer according to claim 4, characterized in that, The outer wall of the mixing tank (1) is fixed with a conductive plate (22). The conductive plate (22) is annular in shape and made of copper. Multiple sets of the conductive plates (22) are arranged in parallel inside the cooling shroud (19).

6. A neodymium iron boron high-speed mixer according to claim 5, characterized in that, A horizontal plate (23) is fixed to the outer wall of the cooling cover (19), a support column (24) is fixed to the bottom of the horizontal plate (23), and a bottom plate (25) is fixed to the bottom of the support column (24). The bottom plate (25) is annular in shape.

7. A neodymium iron boron high-speed mixer according to claim 6, characterized in that, A protective cover (26) is fixed at the center of the top of the mixing tank (1). The first bevel gear (7), the second bevel gear (8) and the third bevel gear (11) are all located inside the protective cover (26). The third bevel gear (11) is rotatably connected to the top of the inner wall of the protective cover (26).

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