Cubic boron nitride powder high-efficiency mixer

Abstract

This utility model belongs to the field of boron nitride technology, specifically disclosing a high-efficiency mixer for cubic boron nitride powder, including a mixing tank. A support is fixedly connected to the top of the mixing tank. The support has a U-shaped cross-section and consists of two vertical plates and one horizontal plate. A motor is fixedly connected to the bottom of the horizontal plate of the support. A rotating rod is fixedly connected to the output end of the motor. A functional rod is provided on the surface of the rotating rod, and a stirring rod is fixedly connected to the surface of the functional rod. A connecting plate is fixedly connected to the bottom of the rotating rod, and a scraper is fixedly connected to one side of the connecting plate. The scraper contacts the inner wall of the mixing tank. By scraping the inner wall of the mixing tank with the scraper, the adhering material on the tank wall can be removed in real time and remixed into the reaction system, ensuring full utilization of raw materials and avoiding cross-contamination, keeping the tank wall clean, ensuring uniform heat transfer to the entire material system, maintaining a stable reaction temperature environment, and improving mixing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of boron nitride technology, specifically a high-efficiency mixer for cubic boron nitride powder. Background Technology

[0002] Boron nitride is a crystal composed of nitrogen and boron atoms, with a chemical composition of 43.6% boron and 56.4% nitrogen. It has four different variants: hexagonal boron nitride, rhombohedral boron nitride, cubic boron nitride, and wurtzite boron nitride. Its cubic crystal variant (the alternating wurtzite form of boron nitride) is considered the hardest known substance and is widely used in the manufacture of alloys, high-temperature resistant materials, semiconductors, nuclear reactors, lubricants, etc. Due to its high hardness and good wear resistance, it has a wide range of applications in the machining industry.

[0003] In existing technologies, boron nitride powder is often directly added to a mixing tank and stirred by a stirring rod. During the stirring process, the boron nitride powder is easily adhered to the tank wall due to high temperature, static electricity, or slight stickiness. When it accumulates to a certain extent and falls off, it mixes into the materials that are reacting normally, contaminating the products and causing some materials to not be fully stirred, further aggravating the uneven reaction. To address the above issues, technological innovations are made based on the existing equipment. Utility Model Content

[0004] The purpose of this invention is to provide a high-efficiency mixer for cubic boron nitride powder to solve the problems mentioned in the background: In the prior art, boron nitride powder is often directly added into a mixing tank and mixed by stirring with a stirring rod. During the stirring process, the boron nitride powder is easily adhered to the tank wall due to high temperature, static electricity, or slight viscosity. When it accumulates to a certain extent and falls off, it will mix into the material that is reacting normally, contaminating the product and causing some materials to not be fully stirred, further aggravating the uneven reaction.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency mixer for cubic boron nitride powder, comprising a mixing tank, a support fixedly connected to the top of the mixing tank, the support having a U-shaped cross-section, the support consisting of two vertical plates and one horizontal plate, a motor fixedly connected to the bottom of the horizontal plate of the support, a rotating rod fixedly connected to the output end of the motor, a functional rod provided on the surface of the rotating rod, a mixing rod fixedly connected to the surface of the functional rod, a connecting plate fixedly connected to the bottom of the rotating rod, and a scraper fixedly connected to one side of the connecting plate, the scraper contacting the inner wall of the mixing tank.

[0006] Preferably, the functional rod has a functional groove inside, and the inside of the functional groove is movably connected to the surface of the rotating rod.

[0007] Preferably, the interior of the mixing tank is provided with a ring extending to the outside of the mixing tank (1), and the surface of the ring is provided with a rotating groove.

[0008] Preferably, the inner surface of the ring is provided with a rotating groove that communicates with the interior of the rotating groove, and the cross-section of the rotating groove is wavy.

[0009] Preferably, a limiting plate is fixedly connected to the surface of the functional rod, and a fixing rod is fixedly connected to the bottom of the limiting plate, with the surface of the fixing rod slidably connected to the inside of the rotating groove.

[0010] Preferably, a sliding rod is fixedly connected to the surface of the fixed rod, and the interior of the sliding rod is slidably connected to the interior of the rotating groove.

[0011] Preferably, a rotating plate is fixedly connected to the surface of the rotating rod, and a limit rod is fixedly connected to the bottom of the rotating plate.

[0012] Preferably, the surface of the limiting rod is slidably connected to the interior of the limiting plate, and the limiting rod slides through the interior of the limiting plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. This high-efficiency cubic boron nitride powder mixer, by setting a scraper to scrape the inner wall of the mixing tank, can remove the adhering material on the tank wall in real time and remix it into the reaction system, ensuring full utilization of raw materials and avoiding cross-contamination, keeping the tank wall clean, ensuring that heat is evenly transferred to the entire material system, maintaining a stable reaction temperature environment, and improving mixing efficiency.

[0014] 2. This high-efficiency cubic boron nitride powder mixer can bring materials from high-temperature zones to low-temperature zones and push materials from low-temperature zones to high-temperature zones by rotating the stirring rod up and down. This accelerates the transfer of heat in the materials, making the temperature of the entire material system more uniform, enhancing the uniformity of material mixing, avoiding local accumulation, ensuring that all materials are stirred, and improving the adaptability of the equipment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the high-efficiency mixer for cubic boron nitride powder of this utility model; Figure 2 This is a schematic diagram of the structure of the mixing tank of this utility model; Figure 3 This is a schematic diagram of the structure of the ring of this utility model; Figure 4 This is a schematic diagram of the structure of the rotating groove of this utility model; Figure 5 This is a schematic diagram of the structure of the stirring rod of this utility model.

[0016] In the diagram: 1. Mixing tank; 2. Support; 3. Motor; 4. Ring; 5. Rotating rod; 6. Rotating plate; 7. Limiting plate; 8. Limiting rod; 9. Functional rod; 10. Rotating groove; 11. Mixing rod; 12. Scraper; 13. Fixing rod; 14. Circulating groove; 15. Functional groove; 16. Connecting plate; 17. Slide rod. Detailed Implementation

[0017] Please see Figure 1-5 This utility model provides a technical solution: a high-efficiency mixer for cubic boron nitride powder, including a mixing tank 1. The mixing tank 1 is a container for mixing and reacting materials. The mixing tank 1 is an existing structure and will not be described in detail here. A support 2 is fixedly connected to the top of the mixing tank 1. The cross-section of the support 2 is U-shaped. The support 2 consists of two vertical plates and one horizontal plate. A motor 3 is fixedly connected to the bottom of the horizontal plate of the support 2. The motor 3 is an existing structure and will not be described in detail here. A rotating rod 5 is fixedly connected to the output end of the motor 3. A functional rod 9 is provided on the surface of the rotating rod 5. A stirring rod 11 is fixedly connected to the surface of the functional rod 9. A connecting plate 16 is fixedly connected to the bottom of the rotating rod 5. A scraper 12 is fixedly connected to one side of the connecting plate 16. The scraper 12 is in contact with the inner wall of the mixing tank 1.

[0018] The inside of the functional rod 9 is provided with a functional groove 15, and the inside of the functional groove 15 is movably connected to the surface of the rotating rod 5.

[0019] When the operator starts the motor 3, the output end of the motor 3 drives the rotating rod 5 to rotate, which in turn drives the connecting plate 16 to rotate. The connecting plate 16 then drives the scraper 12 to rotate, thereby completing the scraping of the inner wall of the mixing tank 1. By scraping the inner wall of the mixing tank 1, the manual cleaning cost is reduced, the equipment maintenance time is shortened, the long-term high-temperature corrosion of the tank wall by the adhering substances is avoided, and the service life of the mixing tank 1 is extended. The adhering substances on the tank wall can be removed in real time and remixed into the reaction system, ensuring full utilization of raw materials and avoiding cross-contamination. The tank wall is kept clean, ensuring that heat is evenly transferred to the entire material system, maintaining a stable reaction temperature environment, maintaining a stable mixing space, and improving mixing efficiency.

[0020] The mixing tank 1 has an inner ring 4 extending to the outside of the mixing tank 1, and the surface of the ring 4 has a rotating groove 10.

[0021] The inner side of the ring 4 is provided with a rotating groove 14 that communicates with the inside of the rotating groove 10. The cross-section of the rotating groove 14 is wavy.

[0022] A limiting plate 7 is fixedly connected to the surface of the functional rod 9, and a fixing rod 13 is fixedly connected to the bottom of the limiting plate 7. The surface of the fixing rod 13 is slidably connected to the inside of the rotating groove 10.

[0023] A slide rod 17 is fixedly connected to the surface of the fixed rod 13. The interior of the slide rod 17 is slidably connected to the interior of the rotating groove 14. The slide rod 17 can move up and down in a wave-like manner with the rotating groove 14.

[0024] A rotating plate 6 is fixedly connected to the surface of the rotating rod 5, and a limit rod 8 is fixedly connected to the bottom of the rotating plate 6.

[0025] The surface of the limiting rod 8 is slidably connected to the inside of the limiting plate 7, and the limiting rod 8 slides through the inside of the limiting plate 7.

[0026] When the operator starts motor 3, the output of motor 3 drives rotating rod 5 to rotate, which in turn drives rotating plate 6 to rotate. Rotating plate 6 then drives limiting rod 8 to rotate, which in turn drives limiting plate 7 to rotate. Limiting plate 7 then drives functional rod 9 to rotate, which in turn drives stirring rod 11 to rotate. Simultaneously, limiting plate 7 drives fixing rod 13 to rotate, which in turn drives sliding rod 17 to rotate. Sliding rod 17 rotates in a wave-like pattern around the inside of the rotating groove 14, allowing it to rotate up and down. This causes limiting plate 7 to drive functional rod 9 to rotate up and down, and functional rod 9 to drive stirring rod 11 to rotate up and down. By rotating stirring rod 11 up and down, materials in the high-temperature zone can be carried to the low-temperature zone, while materials in the low-temperature zone can be pushed to the high-temperature zone, accelerating heat transfer in the materials, making the temperature of the entire material system more uniform, enhancing the uniformity of material mixing, avoiding local accumulation, ensuring that all materials are stirred, improving the adaptability of the equipment, promoting gas-material contact, accelerating impurity discharge, and improving the practicality of the equipment.

[0027] Working principle: For this type of high-efficiency mixer for cubic boron nitride powder, the operator first starts the motor 3. The output end of the motor 3 drives the rotating rod 5 to rotate, which in turn drives the connecting plate 16 to rotate. The connecting plate 16 then drives the scraper 12 to rotate, thereby scraping the inner wall of the mixing tank 1. By scraping the inner wall of the mixing tank 1, the adhering material on the tank wall can be removed in real time and re-mixed into the reaction system. This ensures that the raw materials are fully utilized and avoids cross-contamination, keeps the tank wall clean, ensures that heat is evenly transferred to the entire material system, maintains a stable reaction temperature environment, maintains a stable mixing space, and improves mixing efficiency. When the operator starts motor 3, the output of motor 3 drives rotating rod 5 to rotate, which in turn drives rotating plate 6 to rotate. Rotating plate 6 then drives limiting rod 8 to rotate, which in turn drives limiting plate 7 to rotate. Limiting plate 7 then drives functional rod 9 to rotate, which in turn drives stirring rod 11 to rotate. Simultaneously, limiting plate 7 drives fixing rod 13 to rotate, which in turn drives sliding rod 17 to rotate. This causes limiting plate 7 to drive functional rod 9 to rotate up and down, and functional rod 9 to drive stirring rod 11 to rotate up and down. By rotating stirring rod 11 up and down, materials in the high-temperature zone can be carried to the low-temperature zone, and materials in the low-temperature zone can be pushed to the high-temperature zone, accelerating the transfer of heat in the materials, making the temperature of the entire material system more uniform, enhancing the uniformity of material mixing, avoiding local accumulation, ensuring that all materials are stirred, and improving the adaptability of the equipment.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency mixer for cubic boron nitride powder, comprising a stirring barrel (1), characterized in that: The top of the mixing tank (1) is fixedly connected to a bracket (2). The cross section of the bracket (2) is U-shaped. The bracket (2) consists of two vertical plates and one horizontal plate. The bottom of the horizontal plate of the bracket (2) is fixedly connected to a motor (3). The output end of the motor (3) is fixedly connected to a rotating rod (5). The surface of the rotating rod (5) is provided with a functional rod (9). The surface of the functional rod (9) is fixedly connected to a stirring rod (11). The bottom of the rotating rod (5) is fixedly connected to a connecting plate (16). A scraper (12) is fixedly connected to one side of the connecting plate (16). The scraper (12) is in contact with the inner wall of the mixing tank (1). The mixing tank (1) is provided with a ring (4) extending to the outside of the mixing tank (1), and the surface of the ring (4) is provided with a rotating groove (10); the surface of the functional rod (9) is fixedly connected to a limiting plate (7), and the bottom of the limiting plate (7) is fixedly connected to a fixing rod (13), and the surface of the fixing rod (13) is slidably connected to the inside of the rotating groove (10). The inner side of the ring (4) is provided with a rotating groove (14) that communicates with the inside of the rotating groove (10). The cross section of the rotating groove (14) is wavy. A sliding rod (17) is fixedly connected to the surface of the fixed rod (13). The sliding rod (17) is slidably connected to the inside of the rotating groove (14).

2. The cubic boron nitride powder high-efficiency mixer according to claim 1, characterized in that: The functional rod (9) has a functional groove (15) inside, and the interior of the functional groove (15) is movably connected to the surface of the rotating rod (5).

3. The cubic boron nitride powder high-efficiency mixer according to claim 1, characterized in that: A rotating plate (6) is fixedly connected to the surface of the rotating rod (5), and a limit rod (8) is fixedly connected to the bottom of the rotating plate (6).

4. The cubic boron nitride powder high-efficiency mixer according to claim 3, characterized in that: The surface of the limiting rod (8) is slidably connected to the interior of the limiting plate (7), and the limiting rod (8) slides through the interior of the limiting plate (7).

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