Ball mill for silicon nitride ceramic production

Abstract

The utility model relates to a ball mill for silicon nitride ceramic production, and relates to the field of ball mills, the ball mill comprises a roller, a driving mechanism and a water cooling mechanism, the roller is horizontally arranged and rotatably connected to the ground, the driving mechanism is used for driving the roller to rotate, the water cooling mechanism is arranged above the roller, and the water cooling mechanism comprises a cover body and a plurality of water inlet pipes; the cover body is arranged above the roller, the water inlet pipe is vertically arranged and penetrates through the cover body, and the water inlet pipe is used for spraying cooling water to the outer wall of the roller. The device has the effect of reducing the temperature in the material grinding process.

Description

Technical Field

[0001] This application relates to the field of ball mills, and more particularly to a ball mill for the production of silicon nitride ceramics. Background Technology

[0002] Ball mills are used to grind and crush materials. They are widely used in the production of cement, building materials, refractory materials, and glass ceramics.

[0003] Existing ball mills include a drum, hollow inlet and outlet shafts, and grinding media. The drum is horizontally positioned, with the hollow shafts coaxially connected to both end faces. The grinding media are fixed to the inner wall of the drum. The drum rotates and is connected to the ground. Material is poured into the drum through the hollow inlet and outlet shafts. Steel balls are installed inside the drum. As the drum rotates, the steel balls and material move with the drum and fall to the bottom, causing the balls and material to collide and grind against each other, thus reducing the particle size of the material.

[0004] The aforementioned technical solutions have the following drawbacks: during the material grinding process, the material and the roller generate a large amount of heat due to friction, and the material is prone to denaturation in a high-temperature environment, resulting in poor grinding quality. Utility Model Content

[0005] In order to reduce the temperature during the material grinding process, this application provides a ball mill for the production of silicon nitride ceramics.

[0006] This application provides a ball mill for silicon nitride ceramic production, which adopts the following technical solution:

[0007] A ball mill for producing silicon nitride ceramics includes a drum, a drive mechanism, and a water cooling mechanism. The drum is horizontally positioned and rotatably connected to the ground. The drive mechanism drives the drum to rotate. The water cooling mechanism is positioned above the drum and includes a cover and multiple water inlet pipes. The cover is positioned above the drum, and the water inlet pipes are vertically positioned and penetrate the cover. The water inlet pipes are used to spray cooling water onto the outer wall of the drum.

[0008] By adopting the above technical solution, a drive mechanism is set on the drum, which can drive the drum to rotate, so that the material and steel balls inside the drum collide and rub against each other, achieving the effect of grinding the material. By setting a water cooling mechanism above the drum, the user can spray cooling water onto the drum through the water inlet pipe, so that the cooling water and the drum can exchange heat, thereby reducing the temperature of the drum and the material.

[0009] Optionally, the cover is configured as an arc-shaped plate structure, and the cover is placed over the upper side of the roller.

[0010] By adopting the above technical solution, and by setting the cover as an arc-shaped plate, the cover can be placed above the roller. When the roller rotates, the chance of cooling water splashing out from the roller surface can be reduced, thereby reducing the chance of burns to users.

[0011] Optionally, a water spray pipe is provided at the lower end of the water inlet pipe. The water spray pipe is horizontally positioned and has multiple nozzles, which are spaced apart along the length of the roller.

[0012] By adopting the above technical solution, a water spray pipe is installed below the water inlet pipe, and multiple nozzles are opened on the water spray pipe, so that cooling water can be evenly sprayed onto the outer wall of the drum through the nozzles, thereby enabling the drum to cool down evenly.

[0013] Optionally, the cover is provided with an air extraction mechanism, which is used to extract the gas below the cover.

[0014] By adopting the above technical solution, and by setting an air extraction mechanism on the cover, the air extraction mechanism can extract the water vapor converted from the heat absorbed by the cooling water, thereby reducing the chance of water vapor escaping and scalding the user.

[0015] Optionally, the air extraction mechanism includes multiple air extraction pipes, which are vertically arranged and penetrate the cover. The upper end of the air extraction pipe is connected to an air pump, and the multiple air extraction pipes are spaced apart along the length of the roller.

[0016] By adopting the above technical solution, and by setting multiple exhaust pipes on the cover, with the multiple exhaust pipes being equidistantly spaced along the length of the drum, the multiple exhaust pipes can work together to extract water vapor from below the cover, thereby reducing the probability of water vapor escaping during the cooling process.

[0017] Optionally, the lower end of the suction pipe is provided with an arc-shaped pipe, which is coaxial with the roller. Multiple suction holes are opened on the arc-shaped pipe, and the suction holes are equidistantly spaced along the circumference of the roller.

[0018] By adopting the above technical solution, by setting an arc-shaped pipe below the suction pipe and making the arc-shaped pipe fit against the outer wall of the drum, and by opening multiple suction holes on the arc-shaped pipe, water vapor can enter the arc-shaped pipe through the suction holes and be discharged, thereby further improving the effect of the suction mechanism in extracting water vapor.

[0019] Optionally, the water inlet pipe and the air extraction pipe are arranged alternately.

[0020] By adopting the above technical solution, and by staggering the water inlet pipe and the air extraction pipe, different positions on the drum can be cooled by cooling water spray. The water vapor generated by cooling can be discharged through the air extraction pipes at different positions, achieving the effect of extracting water vapor and recycling it.

[0021] Optionally, the drive mechanism includes a driving gear, a driven gear, and a motor. The motor housing is fixed to the ground, the motor output shaft is coaxially connected to the driving gear, the driven gear is coaxially connected to the end of the drum, and the driving gear and the driven gear mesh.

[0022] By adopting the above technical solution, by setting a driving gear on the motor and a driven gear on the drum, the driving gear and the driven gear mesh, and the user can control the forward and reverse rotation of the motor to make the drum rotate in both directions, thereby achieving the effect of grinding materials.

[0023] In summary, the beneficial technical effects of this application are as follows:

[0024] 1. By setting a drive mechanism on the drum, the drive mechanism can drive the drum to rotate, so that the material and steel balls inside the drum collide and rub against each other, achieving the effect of grinding the material. By setting a water cooling mechanism above the drum, the user can spray cooling water onto the drum through the water inlet pipe, so that the cooling water and the drum can exchange heat, thereby reducing the temperature of the drum and the material.

[0025] 2. By setting the cover to an arc-shaped plate, the cover can be placed over the roller. When the roller rotates, the chance of cooling water splashing out from the roller surface can be reduced, thereby reducing the chance of burns to users.

[0026] 3. By setting an arc-shaped pipe below the suction pipe, and making the arc-shaped pipe fit against the outer wall of the drum, and by opening multiple suction holes on the arc-shaped pipe, water vapor can enter the arc-shaped pipe through the suction holes and be discharged, thereby further improving the effect of the suction mechanism in extracting water vapor. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0028] Figure 2 This is a schematic diagram of the structure of the roller according to an embodiment of this application.

[0029] Figure 3 This is a schematic diagram of the water cooling mechanism according to an embodiment of this application.

[0030] Figure 4 This is a cross-sectional schematic diagram of the air extraction mechanism according to an embodiment of this application.

[0031] Reference numerals: 1. Roller; 2. Drive mechanism; 21. Drive gear; 22. Driven gear; 23. Motor; 3. Water cooling mechanism; 31. Cover; 32. Water inlet pipe; 33. Water spray pipe; 331. Nozzle; 4. Air extraction mechanism; 41. Air extraction pipe; 42. Arc-shaped pipe; 421. Air extraction hole. Detailed Implementation

[0032] The present application will be further described in detail below with reference to the accompanying drawings.

[0033] This application discloses a ball mill for the production of silicon nitride ceramics, referring to... Figure 1 and Figure 2 The grinding system includes a roller 1, a drive mechanism 2, and a water-cooling mechanism 3. The roller 1 is horizontally positioned and rotatably connected to the ground. The drive mechanism 2 is connected to the roller 1 and drives it to rotate on the ground. Users place materials and steel balls into the roller 1, causing the steel balls to impact and grind the materials as the roller rotates, achieving the grinding effect. The water-cooling mechanism 3 is located on the upper side of the roller 1 and is used to cool the roller 1, thereby reducing the temperature rise of the roller 1 and materials during the grinding process, reducing the probability of material deformation at high temperatures, and ensuring grinding quality.

[0034] Reference Figure 2 The drive mechanism 2 includes a drive gear 21, a driven gear 22, and a motor 23. The housing of the motor 23 is fixed to the ground. The drive gear 21 is mounted on the output shaft of the motor 23, and the driven gear 22 is coaxially disposed at one end of the drum 1. The drive gear 21 and the driven gear 22 mesh. By driving the drive gear 21 to rotate, the motor 23 enables the driven gear 22 to drive the drum 1 to rotate, thereby achieving the effect of rotating the drum 1 and grinding the material.

[0035] Reference Figure 3 The water-cooling mechanism 3 includes a cover 31 and water inlet pipes 32. The cover 31 is installed on the upper side of the drum 1. Multiple water inlet pipes 32 are provided, vertically arranged, and pass through and are fixed to the cover 31. The multiple water inlet pipes 32 are evenly spaced along the length of the drum 1. The water inlet pipes 32 are connected to a water tank, and cooling water is sprayed onto the rotating drum 1 through the water inlet pipes 32, thereby achieving the effect of cooling the drum 1. The cover 31 is designed as an arc-shaped plate structure and is coaxial with the drum 1, thereby reducing the chance of cooling water being splashed out and scalding the user when the drum 1 rotates. A water spray pipe 33 is provided at the lower end of the water inlet pipes 32. The water spray pipe 33 is horizontally arranged along the length of the drum 1 and is connected to the multiple water inlet pipes 32. Multiple nozzles 331 are evenly spaced along the length of the water spray pipe 33, and cooling water can be sprayed onto the drum 1 through the nozzles 331, so that the cooling effect of the drum 1 is uniform.

[0036] Reference Figure 3 and Figure 4The cover 31 is equipped with an extraction mechanism 4, which includes multiple extraction pipes 41 that penetrate the cover 31 and are vertically arranged. When cooling water falls onto the outer wall of the drum 1 and absorbs heat, the cooling water evaporates into water vapor. The extraction pipes 41 are used to extract the water vapor, thereby reducing the chance of water vapor escaping and scalding the user. The extraction pipes 41 and the water inlet pipe 32 are arranged alternately, and the multiple extraction pipes 41 are equidistantly spaced along the length of the drum 1, so that the extraction pipes 41 can uniformly extract water vapor. The upper end of the extraction pipe 41 is connected to a water tank, where the water vapor can condense into liquid water, facilitating the recycling of cooling water.

[0037] Reference Figure 3 and Figure 4 An arc-shaped pipe 42 is provided at the lower end of the exhaust pipe 41. The arc of the arc-shaped pipe 42 is coaxial with the roller 1. Multiple exhaust holes 421 are provided on the arc-shaped pipe 42. The exhaust holes 421 are equidistantly spaced along the circumference of the roller 1. When water vapor forms on the outer surface of the roller 1, the exhaust holes 421 can extract the water vapor, thereby reducing the probability of water vapor escaping.

[0038] The implementation principle of this application embodiment is as follows: by setting a water cooling mechanism 3 above the drum 1, the water inlet pipe 32 sprays cooling water onto the drum 1, thereby reducing the temperature of the drum 1 and the material. By setting a cover 31 above the drum 1, the cover 31 separates the drum 1, reducing the probability of the cooling water being thrown out when the drum 1 rotates. By setting an air extraction mechanism 4 on the cover 31, the air extraction pipe 41 can extract and recover the water vapor formed by the evaporation of the cooling water, reducing the probability of water vapor escaping and scalding the user.

[0039] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A ball mill for producing silicon nitride ceramics, characterized by: The application relates to a water-cooled rolling machine, which comprises a roller (1), a driving mechanism (2) and a water-cooling mechanism (3), the roller (1) is horizontally arranged and rotationally connected on the ground, the driving mechanism (2) is used for driving the roller (1) to rotate, the water-cooling mechanism (3) is arranged above the roller (1), the water-cooling mechanism (3) comprises a cover body (31) and a plurality of water inlet pipes (32), the cover body (31) is arranged above the roller (1), the water inlet pipes (32) are vertically arranged and penetrate through the cover body (31), and the water inlet pipes (32) are used for spraying cooling water to the outer wall of the roller (1).

2. The ball mill for producing silicon nitride ceramic according to claim 1, characterized in that: The cover body (31) is arranged in an arc-shaped plate structure, and the cover body (31) covers the upper side of the roller (1).

3. The ball mill for producing silicon nitride ceramic according to claim 2, characterized in that: The lower end of the water inlet pipe (32) is provided with a water spraying pipe (33), the water spraying pipe (33) is horizontally arranged, a plurality of water spraying openings (331) are formed in the water spraying pipe (33), and the water spraying openings (331) are arranged at intervals along the length direction of the roller (1).

4. The ball mill for producing silicon nitride ceramic according to claim 3, characterized in that: An air extraction mechanism (4) is arranged on the cover body (31), and the air extraction mechanism (4) is used for extracting air below the cover body (31).

5. The ball mill for producing silicon nitride ceramics according to claim 4, characterized in that: The air extraction mechanism (4) comprises a plurality of air extraction pipes (41), the air extraction pipes (41) are vertically arranged and penetrate through the cover body (31), the upper end of the air extraction pipe (41) is connected with an air pump, and the air extraction pipes (41) are arranged at intervals along the length direction of the roller (1).

6. The ball mill for producing silicon nitride ceramic according to claim 5, characterized in that: The lower end of the air extraction pipe (41) is provided with an arc-shaped pipe (42), the arc-shaped pipe (42) is coaxially arranged with the roller (1), a plurality of air extraction holes (421) are formed in the arc-shaped pipe (42), and the air extraction holes (421) are arranged at equidistance intervals along the circumferential direction of the roller (1).

7. The ball mill for producing silicon nitride ceramic according to claim 4, characterized in that: The water inlet pipes (32) and the air extraction pipes (41) are arranged in an interlaced mode.

8. The ball mill for producing silicon nitride ceramic according to claim 1, characterized in that: The driving mechanism (2) comprises a driving gear (21), a driven gear (22) and a motor (23), the motor (23) is fixed on the ground, the output shaft of the motor (23) is coaxially connected with the driving gear (21), the driven gear (22) is coaxially connected with the end of the roller (1), and the driving gear (21) and the driven gear (22) are engaged.

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