Dispersing device for boron nitride production

Abstract

The utility model provides a dispersing device for boron nitride production, which relates to the technical field of boron nitride production, and comprises a stirring tank, a discharge pipe and a screen, one side of the bottom of the stirring tank is communicated with the discharge pipe, the screen is mounted at the top of the stirring tank, the bottom of the stirring tank is rotatably connected with a rotating shaft, and the rotating shaft is connected with the stirring tank. A scattering mechanism is arranged at the top of the rotating shaft and comprises a bearing seat, a pressing roller and a connecting rod; the output end of the motor is fixedly connected with the bottom end of the rotating shaft, the motor can drive the rotating shaft to rotate in the stirring tank, the screen and the rotating shaft are fixed together, so that the screen rotates in the stirring tank along with the rotating shaft, and the bottom of the compression roller and the top of the screen are attached to each other, that is, the compression roller and the top of the screen rub each other to drive the compression roller to rotate automatically. And the rotating compression roller can automatically roll the boron nitride particles after being in contact with the boron nitride particles, so that the boron nitride particles are dispersed, penetrate through the filter holes of the screen and enter the bottom of the stirring tank.

Description

Technical Field

[0001] The utility model relates to the technical field of boron nitride production, in particular to a dispersing 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 (HBN), rhombohedral boron nitride (RBN), cubic boron nitride (CBN) and wurtzite boron nitride (WBN). Most of the properties of boron nitride are better than those of carbon materials. For hexagonal boron nitride: very low friction coefficient, good high temperature stability, good thermal shock resistance, high strength, high thermal conductivity, low expansion coefficient, large resistivity, corrosion resistance, microwave or infrared permeability;

[0003] Boron nitride dispersion is a liquid formed by dispersing boron nitride nanosheets or other forms of boron nitride particles in a specific solvent or water. Boron nitride is widely used in many fields due to its unique physical and chemical properties, such as high hardness, high thermal stability, excellent chemical stability, good electrical insulation and thermal conductivity. Most of the existing boron nitride particle dispersing devices are not equipped with a device for screening the boron nitride particles, so that the boron nitride particle dispersing device has to break up the boron nitride particles multiple times, affecting the working efficiency of the boron nitride particle dispersing device. Therefore, the utility model proposes a dispersing device for boron nitride production to solve the above problem. Utility Model Content

[0004] In view of the above problems, the utility model proposes a dispersing device for boron nitride production to solve the problem that the prior art does not have a device for screening boron nitride particles, so that the boron nitride particle dispersing device has to break up the boron nitride particles multiple times, affecting the working efficiency of the boron nitride particle dispersing device.

[0005] To achieve the purpose of the utility model, the utility model is implemented through the following technical scheme: a dispersing device for boron nitride production, including a stirring tank, a discharge pipe and a screen, one side of the bottom of the stirring tank is connected to the discharge pipe, the top of the stirring tank is installed with a screen, the bottom of the stirring tank is rotatably connected to a rotating shaft, and the top of the rotating shaft is provided with a dispersing mechanism.

[0006] A further improvement is that the breaking up mechanism includes a bearing seat, a pressure roller and a connecting rod, the top end of the rotating shaft passes through the interior of the screen and is fixedly connected to it, the top end of the rotating shaft is rotatably connected to the bearing seat, both sides of the bearing seat are fixedly connected to connecting rods, and one end of the connecting rod is fixedly connected to the pressure roller.

[0007] A further improvement is that: a plurality of convex teeth are distributed in an annular shape at equal intervals on the outer side of the pressure roller, the shape of the convex teeth is set to be a rectangular structure, and the outer wall of the convex teeth is closely connected to the top of the screen.

[0008] A further improvement is that a motor is provided at the bottom of the stirring tank, a flange is provided at one end of the motor, a group of mounting holes are symmetrically provided on both sides of the flange, bolts are provided inside the mounting holes, the flange is detachably connected to the bottom of the stirring tank by the bolts, and the output end of the motor passes through the bottom of the stirring tank and is fixedly connected to the bottom end of the rotating shaft.

[0009] A further improvement is that a stirring blade is fixed to the bottom end of the rotating shaft, one end of the stirring blade is fitted and connected to the inner wall of the stirring tank, a material guide plate is provided at the bottom of the stirring tank, the bottom end of the rotating shaft passes through the inside of the material guide plate, and one side of the material guide plate is inclined toward the direction of the discharge pipe.

[0010] A further improvement is that: a plurality of supporting feet are equidistantly distributed in a ring at the bottom of the mixing tank, a supporting platform is provided on one side of the bottom of the mixing tank, and a water delivery mechanism is provided on the top of the supporting platform.

[0011] A further improvement is that the water delivery mechanism includes a water pump, a water inlet pipe, a filter element and a water supply pipe, the water pump is installed on the top of the support platform, the output end of the water pump is connected to the water supply pipe, one end of the water supply pipe is connected to the interior of the mixing tank, the input end of the water pump is connected to the filter element, and one end of the filter element is connected to the water inlet pipe.

[0012] The beneficial effects of the utility model are as follows: the output end of the motor is fixedly connected to the bottom end of the rotating shaft, the motor can drive the rotating shaft to rotate inside the stirring tank, the screen is fixed to the rotating shaft, so that the screen follows the rotating shaft to rotate inside the stirring tank, and the bottom of the pressure roller and the top of the screen fit each other, that is, the mutual friction drives the pressure roller to rotate, and the rotating pressure roller will automatically crush the boron nitride particles after contacting the boron nitride particles, so that the particles are dispersed and pass through the filter holes of the screen to enter the bottom of the stirring tank, so as to solve the problem that there is no device for screening the boron nitride particles in the prior art, so that the boron nitride particle dispersion device has to break up the boron nitride particles multiple times, affecting the working efficiency of the boron nitride particle dispersion device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the front view of the utility model;

[0014] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0015] Figure 3 It is a bottom view of the utility model.

[0016] Among them: 1. mixing tank; 2. discharge pipe; 3. screen; 4. rotating shaft; 5. support platform; 6. bearing seat; 7. pressure roller; 8. guide plate; 9. stirring blade; 10. water pump; 11. water inlet pipe; 12. filter element; 13. water supply pipe; 14. motor; 15. connecting rod. DETAILED DESCRIPTION

[0017] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with an embodiment. The embodiment is only used to explain the present invention and does not constitute a limitation on the protection scope of the present invention.

[0018] according to Figure 1 , 2 As shown in Figures 3, this embodiment proposes a dispersing device for boron nitride production, including a stirring tank 1, a discharge pipe 2 and a screen 3. One side of the bottom of the stirring tank 1 is connected to the discharge pipe 2, and the top of the stirring tank 1 is installed with the screen 3. The bottom of the stirring tank 1 is rotatably connected to a rotating shaft 4, and the top of the rotating shaft 4 is provided with a dispersing mechanism. The weighed boron nitride particles are poured into the top of the stirring tank 1. The dispersing mechanism will automatically disperse the boron nitride particles, which will pass through the sieve holes of the screen 3 and fall to the bottom of the stirring tank 1, and then mix with the water at the bottom of the stirring tank 1 to form a dispersion, and the prepared dispersion is discharged outward through the discharge pipe 2.

[0019] A motor 14 is provided at the bottom of the stirring tank 1, and a flange is provided at one end of the motor 14. A group of mounting holes are symmetrically provided on both sides of the flange. Bolts are provided inside the mounting holes. The flange is detachably connected to the bottom of the stirring tank 1 by bolts. The output end of the motor 14 passes through the bottom of the stirring tank 1 and is fixedly connected to the bottom end of the rotating shaft 4.

[0020] The dispersing mechanism comprises a bearing seat 6, a pressure roller 7 and a connecting rod 15. The top end of the rotating shaft 4 passes through the interior of the screen 3 and is fixedly connected thereto. The top end of the rotating shaft 4 is rotatably connected to the bearing seat 6. The two sides of the bearing seat 6 are fixedly connected to the connecting rod 15. One end of the connecting rod 15 is fixedly connected to the pressure roller 7. The outer side of the pressure roller 7 is equidistantly annularly distributed with a plurality of convex teeth. The shape of the convex teeth is set to a rectangular structure. The outer wall of the convex teeth is fitted and connected with the top of the screen 3. The output end of the motor 14 is fixedly connected to the bottom end of the rotating shaft 4. The motor 14 can drive the rotating shaft 4 to rotate inside the stirring tank 1. The screen 3 is fixed to the rotating shaft 4 so that the screen 3 rotates inside the stirring tank 1 following the rotating shaft 4, and the bottom of the pressure roller 7 is fitted with the top of the screen 3, that is, the mutual friction drives the pressure roller 7 to rotate by itself. After the rotating pressure roller 7 contacts with the boron nitride particles, it will automatically crush them, so that they are dispersed and pass through the filter holes of the screen 3 into the bottom of the stirring tank 1.

[0021] A stirring blade 9 is fixed to the bottom end of the rotating shaft 4, and one end of the stirring blade 9 is fitted and connected to the inner wall of the stirring tank 1. A guide plate 8 is provided at the bottom of the stirring tank 1. The bottom end of the rotating shaft 4 passes through the inside of the guide plate 8, and one side of the guide plate 8 is inclined in the direction of the discharge pipe 2. When the boron nitride particles fall into the water at the bottom of the stirring tank 1, since the stirring blade 9 is fixed to the rotating shaft 4, the rotating shaft 4 can drive the stirring blade 9 to rotate at the bottom of the stirring tank 1, so as to stir the water and the boron nitride particles to mix with each other to form a dispersion, and the inclined guide plate 8 can guide the dispersion to flow in the direction of the discharge pipe 2 of the dispersion tank to discharge the material.

[0022] A plurality of supporting feet are equidistantly distributed in an annular manner at the bottom of the stirring tank 1. A supporting platform 5 is provided on one side of the bottom of the stirring tank 1. A water delivery mechanism is provided on the top of the supporting platform 5. The water delivery mechanism includes a water pump 10, a water inlet pipe 11, a filter element 12 and a water delivery pipe 13. The water pump 10 is installed on the top of the supporting platform 5. The output end of the water pump 10 is connected with the water delivery pipe 13. One end of the water delivery pipe 13 is connected with the interior of the stirring tank 1. The input end of the water pump 10 is connected with the filter element 12. One end of the filter element 12 is connected with the water inlet pipe 11. The water inlet pipe 11 is connected with an external water source. The water pump 10 attracts water into the interior through the water inlet pipe 11, and then delivers the water to the interior of the stirring tank 1 through the water delivery pipe 13, so as to automatically replenish water to the interior of the stirring tank 1. The filter element 12 can filter the water entering the interior of the stirring tank 1 to prevent impurities from entering the interior of the stirring tank 1 and affecting the quality of the dispersion.

[0023] In the dispersing device for producing boron nitride, the output end of the motor 14 is fixedly connected to the bottom end of the rotating shaft 4, the motor 14 can drive the rotating shaft 4 to rotate inside the stirring tank 1, the screen 3 is fixed to the rotating shaft 4, so that the screen 3 follows the rotating shaft 4 to rotate inside the stirring tank 1, and the bottom of the pressure roller 7 and the top of the screen 3 are in contact with each other, that is, the mutual friction drives the pressure roller 7 to rotate by itself, and the rotating pressure roller 7 automatically crushes the boron nitride particles after contacting them, so that the particles are dispersed and pass through the filter holes of the screen 3 to enter the bottom of the stirring tank 1.

[0024] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A dispersing device for producing boron nitride, comprising a stirring tank (1), a discharge pipe (2) and a screen (3), characterized in that: A discharge pipe (2) is connected to one side of the bottom of the stirring tank (1), a screen (3) is installed on the top of the stirring tank (1), a rotating shaft (4) is rotatably connected to the bottom of the stirring tank (1), and a dispersing mechanism is provided on the top of the rotating shaft (4); The dispersing mechanism comprises a bearing seat (6), a pressure roller (7) and a connecting rod (15); the top end of the rotating shaft (4) passes through the interior of the screen (3) and is fixedly connected thereto; the top end of the rotating shaft (4) is rotatably connected to the bearing seat (6); the two sides of the bearing seat (6) are fixedly connected to the connecting rod (15); and one end of the connecting rod (15) is fixedly connected to the pressure roller (7).

2. A dispersing device for producing boron nitride according to claim 1, characterized in that: The outer side of the pressure roller (7) is provided with a plurality of convex teeth distributed in an annular manner at equal intervals, the shape of the convex teeth is set to be a rectangular structure, and the outer wall of the convex teeth is fitted and connected to the top of the screen (3).

3. A dispersing device for producing boron nitride according to claim 1, characterized in that: A motor (14) is provided at the bottom of the stirring tank (1), a flange is provided at one end of the motor (14), a group of mounting holes are symmetrically provided on both sides of the flange, bolts are provided inside the mounting holes, the flange is detachably connected to the bottom of the stirring tank (1) via the bolts, and the output end of the motor (14) passes through the bottom of the stirring tank (1) and is fixedly connected to the bottom end of the rotating shaft (4).

4. A dispersing device for producing boron nitride according to claim 1, characterized in that: A stirring blade (9) is fixed to the bottom end of the rotating shaft (4), one end of the stirring blade (9) is closely connected to the inner wall of the stirring tank (1), a material guide plate (8) is provided at the bottom of the interior of the stirring tank (1), the bottom end of the rotating shaft (4) passes through the interior of the material guide plate (8), and one side of the material guide plate (8) is inclined in the direction of the discharge pipe (2).

5. A dispersing device for producing boron nitride according to claim 1, characterized in that: The bottom of the stirring tank (1) is provided with a plurality of supporting feet distributed in an equidistant manner in an annular pattern. A supporting platform (5) is provided on one side of the bottom of the stirring tank (1), and a water delivery mechanism is provided on the top of the supporting platform (5).

6. A dispersing device for producing boron nitride according to claim 5, characterized in that: The water delivery mechanism comprises a water pump (10), a water inlet pipe (11), a filter element (12) and a water delivery pipe (13); the water pump (10) is mounted on the top of the support platform (5); the output end of the water pump (10) is connected to the water delivery pipe (13); one end of the water delivery pipe (13) is connected to the interior of the stirring tank (1); the input end of the water pump (10) is connected to the filter element (12); one end of the filter element (12) is connected to the water inlet pipe (11).

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