Purification device for boron nitride production

Abstract

The utility model discloses a purification device for boron nitride production, which belongs to the technical field of boron nitride purification, and adopts the technical scheme that the purification device comprises a bottom plate, a purification soaking tank is arranged at the top of the bottom plate, a blow-off mechanism is arranged at the top of the purification soaking tank, and a speed reducing motor is arranged at the bottom of the purification soaking tank; an oak cushion block is arranged at the top of the bottom plate; the blow-down mechanism comprises a cover plate, a circular ring pipe and a plurality of exhaust ports, the tops of the exhaust ports fixedly communicate with the bottom of the circular ring pipe, and the problems that an existing container for soaking hexagonal boron nitride particle raw materials with hydrochloric acid is simple in structure, the hexagonal boron nitride particle raw materials are prone to being attached to the inner wall of a purification soaking tank in the soaking process, and the service life of the hexagonal boron nitride particle raw materials is affected are solved. The problems that a hexagonal boron nitride particle raw material is inconvenient to fully stir and fully mix and soak with hydrochloric acid, and the hydrochloric acid after soaking the hexagonal boron nitride particle raw material is inconvenient to completely discharge out of a purification soaking tank are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of boron nitride purification, in particular to a purification device for boron nitride production. Background Art

[0002] Boron nitride is a crystal composed of nitrogen atoms 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. The method for separating and purifying hexagonal boron nitride is to first soak it in 0.5-7M hydrochloric acid and stir it for 30 minutes to dissolve impurities, then filter it, wash it with water, and heat and evaporate the residue to dry it for 5-24 hours.

[0003] At present, the Chinese patent with announcement number CN216630837U discloses a purification device for boron nitride production, including a box body and a sealing plate installed at one end of the box body, a reduction motor is installed at one end of the box body, the output shaft of the reduction motor passes through the inner wall of the box body and is connected to a rotating shaft, a plurality of stirring components are installed on the rotating shaft, the stirring components are equipped with scrapers that fit the inner wall of the box body, both ends of the scrapers are fixed with connecting rods fixedly connected to the rotating shaft, a plurality of dispersion rods are fixed on the outer wall of the scraper close to the rotating shaft, and a feeding mechanism is installed on the top side of the box body. The utility model allows part of the raw materials to move upward along the inner wall of the box body, and the raw materials fall downward when they reach the highest point and collide with the dispersion rods to disperse the raw materials, so that the hydrochloric acid solution can fully react with the impurities and improve the completeness of the purification of boron nitride.

[0004] The existing container structure for soaking the hexagonal boron nitride particle raw material with hydrochloric acid is relatively simple. The hexagonal boron nitride particle raw material is easily attached to the inner wall of the purification soaking tank during the soaking process, which makes it inconvenient to fully stir the hexagonal boron nitride particle raw material and fully mix it with the hydrochloric acid for soaking. It is also inconvenient to completely discharge the hydrochloric acid after soaking the hexagonal boron nitride particle raw material from the purification soaking tank. Utility Model Content

[0005] The utility model provides a purification device for boron nitride production, aiming to solve the problems that, in the existing process of soaking hexagonal boron nitride particle raw materials in hydrochloric acid, the container structure is relatively simple, the hexagonal boron nitride particle raw materials are easily attached to the inner wall of the purification soaking tank during the soaking process, it is inconvenient to fully stir the hexagonal boron nitride particle raw materials and fully mix them with hydrochloric acid for soaking, and it is inconvenient to completely discharge the hydrochloric acid after soaking the hexagonal boron nitride particle raw materials from the purification soaking tank, thereby affecting the use effect.

[0006] The utility model is implemented as follows: a purification device for boron nitride production, comprising a bottom plate, a purification soaking tank is provided on the top of the bottom plate, a blowing mechanism is provided on the top of the purification soaking tank, a reduction motor is provided at the bottom of the purification soaking tank, and an oak pad is provided on the top of the bottom plate;

[0007] The blowing mechanism includes a cover plate, a circular tube and several exhaust ports, the top of the exhaust port is fixedly connected to the bottom of the circular tube, the top of the circular tube is fixedly connected to the bottom of the cover plate, the bottom of the cover plate is in contact with the top of the purification immersion tank, and the surface of the circular tube is in contact with the inner wall of the purification immersion tank.

[0008] In order to facilitate the input of air into the annular tube, as a preferred purification device for boron nitride production of the present invention, an air pipe is provided on the top of the cover plate, the bottom of the air pipe passes through the cover plate and is fixedly connected to the top of the annular tube, and handles are fixedly connected on both sides of the top of the cover plate.

[0009] In order to facilitate the scraping of the hexagonal boron nitride particle raw material attached to the inner wall of the purification immersion tank, a purification device for boron nitride production is preferably provided in the present invention. A rotating plate is provided inside the purification immersion tank, and the bottom of the rotating plate contacts the bottom of the inner wall of the purification immersion tank. Scrapers are fixedly connected on both sides of the top of the rotating plate, and the surface of the scraper contacts the inner wall of the purification immersion tank.

[0010] In order to facilitate the stirring of the hexagonal boron nitride particle raw material inside the purification immersion tank, a preferred boron nitride production purification device of the present invention is that the top of the rotating plate is fixedly connected to a fixed column, and the surface of the fixed column is fixedly connected to a mixing plate. The number of the fixed columns is two, and the number of the mixing plates is several.

[0011] In order to achieve the effect of driving the rotating plate to rotate, as a preferred purification device for boron nitride production of the utility model, the top of the reduction motor is fixedly connected to the bottom of the purification immersion tank, the top of the reduction motor output shaft passes through the purification immersion tank and is fixedly connected to the bottom of the rotating plate, and the surface of the reduction motor output shaft is movably connected to the interior of the purification immersion tank.

[0012] In order to facilitate the rotation of the purification immersion tank, as a preferred purification device for boron nitride production of the present invention, the front and rear sides of the top of the bottom plate are fixedly connected with rotating blocks, and the purification immersion tank is rotatably connected between the opposite sides of the two rotating blocks.

[0013] In order to achieve the effect of convenient and stable support for the purification immersion tank, as a preferred purification device for boron nitride production of the utility model, the front and rear sides of the top of the base plate are fixedly connected with baffles, the oak pad is arranged between the opposite sides of the two baffles, the top of the oak pad is in contact with the bottom of the purification immersion tank, the left side of the top of the base plate is fixedly connected to a limiting block, and the left side of the oak pad is fixedly connected to a first handle.

[0014] In order to achieve the effect of making the bottom plate more stable and conveniently discharging the hydrochloric acid after soaking the hexagonal boron nitride particle raw material from the purification soaking tank, as a preferred purification device for boron nitride production of the utility model, the bottom of the bottom plate is fixedly connected with an anti-slip strip, and the number of the anti-slip strips is several. The bottom of the right side of the purification soaking tank is fixedly connected with a discharge pipe, the top of the discharge pipe is fixedly connected with a valve, and the left side of the purification soaking tank is fixedly connected with a second handle.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The boron nitride production purification device is characterized in that hexagonal boron nitride particle raw materials are poured into a purification soaking tank, and then hydrochloric acid is added for soaking. At this time, the hexagonal boron nitride particle raw materials can be stirred and mixed by controlling the rotation of a reduction motor. At this time, a scraper and a rotating plate can scrape the inner wall of the purification soaking tank to prevent the hexagonal boron nitride particle raw materials from adhering to the inner wall of the purification soaking tank during the soaking process. Then, a valve is opened to discharge the hydrochloric acid after soaking from the purification soaking tank. The purification soaking tank is then tilted to the right, and an air supply pipe is connected to an external air source. The external air source can blow off the hydrochloric acid liquid remaining on the surface of the hexagonal boron nitride particle raw materials, and the hydrochloric acid is discharged from the purification soaking tank through a discharge pipe. This avoids the problems of the existing container structure for soaking the hexagonal boron nitride particle raw materials with hydrochloric acid being relatively simple, the hexagonal boron nitride particle raw materials being easily adhered to the inner wall of the purification soaking tank during the soaking process, which makes it inconvenient to fully stir the hexagonal boron nitride particle raw materials and fully mix and soak them with hydrochloric acid, and it is inconvenient to completely discharge the hydrochloric acid after soaking the hexagonal boron nitride particle raw materials from the purification soaking tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the overall structural diagram of the purification device for boron nitride production of the present utility model;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure on the right side of the purification and soaking tank in the present invention;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the bottom of the cover plate in the utility model;

[0020] Figure 4 This is a schematic diagram of the three-dimensional connection between the transfer plate and the reduction motor of the utility model;

[0021] Figure 5 This is a schematic diagram of the three-dimensional connection between the midsole plate and the oak pad in the utility model.

[0022] In the figure, 1. bottom plate; 2. purification immersion tank; 3. fixed column; 4. handle; 5. gas pipe; 6. blowing mechanism; 601. cover plate; 602. circular tube; 603. exhaust port; 7. first handle; 8. limit block; 9. anti-slip strip; 10. baffle; 11. oak pad; 12. rotating block; 13. second handle; 14. valve; 15. discharge pipe; 16. mixing plate; 17. scraper; 18. reduction motor; 19. rotating plate. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0024] In the description of the present invention, it should be understood that the terms "length," "width," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and the like, indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, in the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

[0025] See also Figure 1-5 The utility model provides a technical solution: a purification device for boron nitride production, comprising a bottom plate 1, a purification soaking tank 2 is provided on the top of the bottom plate 1, a blowing mechanism 6 is provided on the top of the purification soaking tank 2, a reduction motor 18 is provided at the bottom of the purification soaking tank 2, and an oak pad 11 is provided on the top of the bottom plate 1;

[0026] The blowing mechanism 6 includes a cover plate 601, an annular tube 602 and several exhaust ports 603. The top of the exhaust port 603 is fixedly connected to the bottom of the annular tube 602, the top of the annular tube 602 is fixedly connected to the bottom of the cover plate 601, the bottom of the cover plate 601 is in contact with the top of the purification immersion tank 2, and the surface of the annular tube 602 is in contact with the inner wall of the purification immersion tank 2.

[0027] In this embodiment: by pouring the hexagonal boron nitride particle raw material into the purification soaking tank 2, and then adding hydrochloric acid for soaking, at this time, the reduction motor 18 is controlled to rotate to stir and mix the hexagonal boron nitride particle raw material, at this time, the scraper 17 and the rotating plate 19 will scrape the inner wall of the purification soaking tank 2 to prevent the hexagonal boron nitride particle raw material from adhering to the inner wall of the purification soaking tank 2 during the soaking process, and then open the valve 14 to discharge the soaked hydrochloric acid from the purification soaking tank 2, and then tilt the purification soaking tank 2 to the right, and connect the gas pipe 5 to the external gas source. The hexagonal boron nitride particle raw material is connected to the external gas source to blow off the hydrochloric acid liquid remaining on the surface of the hexagonal boron nitride particle raw material, and is discharged from the purification soaking tank 2 through the discharge pipe 15, thereby avoiding the problem that the container structure of the existing hexagonal boron nitride particle raw material using hydrochloric acid is relatively simple, the hexagonal boron nitride particle raw material in the soaking process is easy to adhere to the inner wall of the purification soaking tank 2, and it is inconvenient to fully stir the hexagonal boron nitride particle raw material and fully mix it with hydrochloric acid for soaking, and it is inconvenient to completely discharge the hydrochloric acid after the hexagonal boron nitride particle raw material is soaked from the purification soaking tank 2.

[0028] As a technical optimization solution of the present invention, an air supply pipe 5 is provided on the top of the cover plate 601. The bottom of the air supply pipe 5 passes through the cover plate 601 and is fixedly connected to the top of the circular tube 602. Handles 4 are fixedly connected to both sides of the top of the cover plate 601.

[0029] In this embodiment, by connecting the external air source to the air supply pipe 5 , air can be fed into the annular tube 602 through the air supply pipe 5 , thereby facilitating the input of air into the annular tube 602 .

[0030] As a technical optimization solution of the present invention, a rotating plate 19 is provided inside the purification soaking tank 2, and the bottom of the rotating plate 19 contacts the bottom of the inner wall of the purification soaking tank 2. Scrapers 17 are fixedly connected on both sides of the top of the rotating plate 19, and the surface of the scraper 17 contacts the inner wall of the purification soaking tank 2.

[0031] In this embodiment: by controlling the rotation of the reduction motor 18, the scraper 17 and the rotating plate 19 can be driven to rotate, thereby scraping off the hexagonal boron nitride particle raw material attached to the inner wall of the purification soaking tank 2, thereby achieving the effect of conveniently scraping off the hexagonal boron nitride particle raw material attached to the inner wall of the purification soaking tank 2.

[0032] As a technical optimization solution of the present invention, the top of the rotating plate 19 is fixedly connected with a fixed column 3, and the surface of the fixed column 3 is fixedly connected with a mixing plate 16. There are two fixed columns 3 and several mixing plates 16.

[0033] In this embodiment: when the rotating plate 19 is driven to rotate by the reduction motor 18, the fixed column 3 and the mixing plate 16 will also rotate, thereby stirring the hexagonal boron nitride particle raw material inside the purification immersion tank 2 and fully mixing it with hydrochloric acid, thereby achieving the effect of facilitating the stirring of the hexagonal boron nitride particle raw material inside the purification immersion tank 2.

[0034] As a technical optimization solution of the present invention, the top of the reduction motor 18 is fixedly connected to the bottom of the purification soaking tank 2, the top of the output shaft of the reduction motor 18 passes through the purification soaking tank 2 and is fixedly connected to the bottom of the rotating plate 19, and the surface of the output shaft of the reduction motor 18 is movably connected to the interior of the purification soaking tank 2.

[0035] In this embodiment, by controlling the reduction motor 18 to rotate, the reduction motor 18 can drive the rotating plate 19 to rotate through the output shaft, thereby achieving the effect of driving the rotating plate 19 to rotate.

[0036] As a technical optimization solution of the present invention, the front and rear sides of the top of the bottom plate 1 are fixedly connected with rotating blocks 12, and the purification soaking tank 2 is rotatably connected between the opposite sides of the two rotating blocks 12.

[0037] In this embodiment, the purification soaking tank 2 is connected between the two rotating blocks 12 by rotation, so that the purification soaking tank 2 can be rotated, achieving the effect of facilitating the rotation of the purification soaking tank 2.

[0038] As a technical optimization solution of the present invention, the front and rear sides of the top of the base plate 1 are fixedly connected with a baffle 10, and the oak pad 11 is arranged between the opposite sides of the two baffles 10. The top of the oak pad 11 contacts the bottom of the purification soaking tank 2, and the left side of the top of the base plate 1 is fixedly connected to the limiting block 8, and the left side of the oak pad 11 is fixedly connected to the first handle 7.

[0039] In this embodiment: by moving the oak pad 11 to contact the bottom of the purification soaking tank 2, the oak pad 11 can stably support the purification soaking tank 2, thereby achieving the effect of conveniently supporting the purification soaking tank 2 stably.

[0040] As a technical optimization solution of the present invention, the bottom of the base plate 1 is fixedly connected with an anti-slip strip 9, and the number of anti-slip strips 9 is several. The bottom of the right side of the purification immersion tank 2 is fixedly connected with a discharge pipe 15, and the top of the discharge pipe 15 is fixedly connected with a valve 14. The left side of the purification immersion tank 2 is fixedly connected with a second handle 13.

[0041] In this embodiment: by moving the base plate 1 to a flat ground, the anti-slip strip 9 at the bottom of the base plate 1 will provide stable support for the base plate 1, and by opening the valve 14, the hydrochloric acid liquid inside the purification soaking tank 2 can be discharged from the purification soaking tank 2 through the discharge pipe 15, thereby achieving the effect of making the base plate 1 more stably placed and conveniently discharging the hydrochloric acid after soaking the hexagonal boron nitride particle raw material from the purification soaking tank 2.

[0042] Working principle: First, move the bottom plate 1 to a stable ground. At this time, the anti-slip strip 9 at the bottom of the bottom plate 1 will provide stable support for the bottom plate 1. Then pour the hexagonal boron nitride particle raw material that needs to be purified and soaked into the purification soaking tank 2. Then pour an appropriate amount of hydrochloric acid into the purification soaking tank 2 to soak the hexagonal boron nitride particle raw material. Then control the reduction motor 18 to rotate. The rotation of the reduction motor 18 can drive the rotating plate 19 to rotate through the output shaft. The rotation of the rotating plate 19 will drive the fixed column 3 and the mixing plate 16 to rotate, and the hexagonal boron nitride particle raw material and the hydrochloric acid inside the purification soaking tank 2 can be mixed. At this time, the scraper 17 will also rotate, and the inner wall of the purification soaking tank 2 can be continuously scraped. To prevent the hexagonal boron nitride particle raw material from adhering to the inner wall of the purification soaking tank 2, after the hexagonal boron nitride particle raw material is soaked in hydrochloric acid, open the valve 14, and the hydrochloric acid inside the purification soaking tank 2 can be filtered and discharged from the purification soaking tank 2, and then hold the first handle 7, pull the first handle 7 to the left, so that the oak pad 11 moves to the left, so that the left side of the oak pad 11 contacts the surface of the limit block 8, and then the purification soaking tank 2 can be turned to the right, so that the bottom edge of the purification soaking tank 2 contacts the top of the bottom plate 1, so that the purification soaking tank 2 is in a tilted state, and then the air supply pipe 5 is connected to the external air source, so that the air enters the inside of the annular tube 602 through the air supply pipe 5, and then passes The hydrochloric acid liquid is discharged through the exhaust port 603 to blow off the hydrochloric acid liquid remaining on the surface of the hexagonal boron nitride particle raw material after soaking in the purification soaking tank 2, and then the reduction motor 18 is controlled to rotate to stir the hexagonal boron nitride particle raw material, so that the hydrochloric acid water stains attached to the surface of the hexagonal boron nitride particle raw material can be completely blown off. At this time, since the purification soaking tank 2 is in an inclined state, the hydrochloric acid liquid after blowing off will flow more quickly to the bottom of the purification soaking tank 2 and be discharged from the purification soaking tank 2 through the discharge pipe 15, so that the hexagonal boron nitride particle raw material inside the purification soaking tank 2 remains relatively dry, which is convenient for the next step of purification of the hexagonal boron nitride particle raw material and avoids the existing use of salt in the hexagonal boron nitride particle raw material. The container structure for acid soaking is relatively simple. The hexagonal boron nitride particle raw material is easily attached to the inner wall of the purification soaking tank 2 during the soaking process, which makes it inconvenient to fully stir the hexagonal boron nitride particle raw material and fully mix it with hydrochloric acid for soaking, and it is inconvenient to completely discharge the hydrochloric acid after the hexagonal boron nitride particle raw material is soaked from the purification soaking tank 2. It should be noted that the cover plate 601 itself has weight, so that the cover plate 601 can be stably placed on the top of the purification soaking tank 2 without displacement or falling. By holding the handle 4 and lifting the handle 4, the cover plate 601 can be moved and separated from the purification soaking tank 2, which is convenient for removing the hexagonal boron nitride particle raw material after soaking in the purification soaking tank 2 from the purification soaking tank 2.

[0043] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A purification device for boron nitride production, comprising a bottom plate (1), characterized in that: A purification soaking tank (2) is provided on the top of the bottom plate (1), a blowing mechanism (6) is provided on the top of the purification soaking tank (2), a reduction motor (18) is provided on the bottom of the purification soaking tank (2), and an oak pad (11) is provided on the top of the bottom plate (1); The blowing mechanism (6) comprises a cover plate (601), a circular tube (602) and a plurality of exhaust ports (603), wherein the top of the exhaust port (603) is fixedly connected to the bottom of the circular tube (602), the top of the circular tube (602) is fixedly connected to the bottom of the cover plate (601), the bottom of the cover plate (601) contacts the top of the purification soaking tank (2), and the surface of the circular tube (602) contacts the inner wall of the purification soaking tank (2).

2. A boron nitride production purification device according to claim 1, characterized in that: An air delivery pipe (5) is provided on the top of the cover plate (601), the bottom of the air delivery pipe (5) passes through the cover plate (601) and is fixedly connected to the top of the annular tube (602), and handles (4) are fixedly connected to both sides of the top of the cover plate (601).

3. The boron nitride production purification device according to claim 1, characterized in that: A rotating plate (19) is provided inside the purification soaking tank (2), the bottom of the rotating plate (19) contacts the bottom of the inner wall of the purification soaking tank (2), and scrapers (17) are fixedly connected to both sides of the top of the rotating plate (19), and the surface of the scraper (17) contacts the inner wall of the purification soaking tank (2).

4. A boron nitride production purification device according to claim 3, characterized in that: The top of the rotating plate (19) is fixedly connected to a fixing column (3), and the surface of the fixing column (3) is fixedly connected to a mixing plate (16). The number of the fixing columns (3) is two, and the number of the mixing plates (16) is several.

5. The boron nitride production purification device according to claim 3, characterized in that: The top of the reduction motor (18) is fixedly connected to the bottom of the purification soaking tank (2), the top of the output shaft of the reduction motor (18) passes through the purification soaking tank (2) and is fixedly connected to the bottom of the rotating plate (19), and the surface of the output shaft of the reduction motor (18) is movably connected to the interior of the purification soaking tank (2).

6. The boron nitride production purification device according to claim 1, characterized in that: The front side and the rear side of the top of the bottom plate (1) are both fixedly connected with rotating blocks (12), and the purification soaking tank (2) is rotatably connected between the opposite sides of the two rotating blocks (12).

7. The boron nitride production purification device according to claim 1, characterized in that: The front and rear sides of the top of the bottom plate (1) are fixedly connected to a baffle (10), the oak pad (11) is arranged between the two opposite sides of the baffle (10), the top of the oak pad (11) contacts the bottom of the purification soaking tank (2), the left side of the top of the bottom plate (1) is fixedly connected to a limit block (8), and the left side of the oak pad (11) is fixedly connected to a first handle (7).

8. The boron nitride production purification device according to claim 1, characterized in that: The bottom of the base plate (1) is fixedly connected to an anti-slip strip (9), and the number of the anti-slip strips (9) is several. The bottom of the right side of the purification soaking tank (2) is fixedly connected to a discharge pipe (15), and the top of the discharge pipe (15) is fixedly connected to a valve (14). The left side of the purification soaking tank (2) is fixedly connected to a second handle (13).

Images