Raw material heating device for silicon carbide product production

Abstract

The utility model relates to the technical field of silicon carbide processing, in particular to a silicon carbide product production raw material heating device which comprises a resistance furnace body, a supporting plate is slidably arranged in the resistance furnace body, a supporting rod is fixedly arranged on the supporting plate, and a connecting rod is slidably arranged on the supporting rod; a connecting rod is arranged on the resistance furnace body, a connecting sleeve is rotationally arranged on the connecting rod, a material tray is fixedly arranged on the connecting sleeve, a motor is fixedly arranged on the resistance furnace body, an output shaft of the motor extends into the resistance furnace body, and a connecting mechanism used for being locked with the output shaft of the motor is arranged on the connecting sleeve. The device has the effect of uniformly heating the silicon carbide raw material.

Description

Technical Field

[0001] The present application relates to the technical field of silicon carbide processing, and in particular to a raw material heating device for producing silicon carbide products. Background Art

[0002] Silicon carbide is an inorganic substance, which is made of quartz sand, petroleum coke (or coal coke), sawdust (salt is needed to produce green silicon carbide) and other raw materials through high-temperature smelting in a resistance furnace. High-purity silicon powder and high-purity carbon powder are mixed in a certain ratio, reacted at a high temperature of more than 2000℃ to synthesize silicon carbide particles, and then through crushing, cleaning and other processes, high-purity silicon carbide micro-powder raw materials that meet the requirements of crystal growth can be obtained.

[0003] The resistance furnace used for heating utilizes electric current to heat the electric heating element or heating medium in the furnace, thereby heating the silicon carbide raw material. When the silicon carbide raw material is heated by the resistance furnace, the silicon carbide raw material is simply placed in the resistance furnace, and the heating of the silicon carbide raw material is not uniform, thus affecting the heating effect. Utility Model Content

[0004] In order to ensure uniform heating of silicon carbide raw materials, the present application provides a raw material heating device for producing silicon carbide products.

[0005] The present application provides a raw material heating device for producing silicon carbide products using the following technical solution:

[0006] A raw material heating device for producing silicon carbide products, comprising: a resistance furnace body, a support plate slidably arranged inside the resistance furnace body, a support rod fixedly arranged on the support plate, a connecting rod slidably arranged on the support rod, a connecting sleeve rotatably arranged on the connecting rod, a material tray fixedly arranged on the connecting sleeve, a motor fixedly arranged on the resistance furnace body, the output shaft of the motor extending into the resistance furnace body, and a connecting mechanism for locking with the output shaft of the motor provided on the connecting sleeve.

[0007] By adopting the above technical solution, after the silicon carbide raw material is placed on the material tray, the support plate is pushed into the resistance furnace body, and then the connecting sleeve and the output shaft of the motor are locked together through the connecting mechanism, so that the motor can drive the connecting sleeve to rotate, and the connecting sleeve drives the material tray to rotate, thereby achieving uniform heating of the silicon carbide raw material.

[0008] Optionally, a waist-shaped hole is provided on the support rod, and the connecting rod and the waist-shaped hole are slidably connected.

[0009] By adopting the above technical solution, the waist-shaped hole can play a role of limiting and guiding the movement of the connecting rod.

[0010] Optionally, a connecting ring is fixedly provided on the connecting rod, the connecting ring is sleeved on the supporting rod, an annular groove is provided on the connecting sleeve, and the connecting ring and the annular groove are slidably connected.

[0011] By adopting the above technical solution, when the connecting rod is lifted or lowered, the connecting sleeve can be driven to lift or lower through the connecting ring. The sliding connection between the connecting ring and the annular groove can ensure the free rotation of the connecting sleeve.

[0012] Optionally, the connecting mechanism includes a first positioning tooth fixedly provided on the output shaft of the motor, a second positioning tooth fixedly provided on the connecting sleeve, and a lifting assembly for controlling the lifting and lowering of the connecting sleeve; when the output shaft of the motor is inserted into the connecting sleeve, the first positioning tooth and the second positioning tooth are engaged with each other.

[0013] By adopting the above technical solution, the connecting sleeve can be lifted by the lifting assembly, so that the connecting sleeve and the output shaft of the motor are plugged together, thereby making the first positioning tooth and the second positioning tooth engage with each other, ensuring that the output shaft of the motor can drive the connecting sleeve to rotate.

[0014] Optionally, the lifting assembly includes a first driving block slidably set on the support rod, a second driving block slidably set on the support plate, and a third driving block rotatably set on the support plate; the first driving block is fixed to the connecting rod, the first driving block and the second driving block are abutted, and when the third driving block abuts against the second driving block, the second driving block moves in a direction close to the first driving block and pushes the first driving block to rise.

[0015] By adopting the above technical solution, the second driving block can be pushed to move toward the first driving block by rotating the third driving block, so that the first driving block rises under the action of the second driving block. The first driving block drives the connecting rod to rise, and the connecting rod drives the connecting sleeve to rise, so that the connecting sleeve is connected to the output shaft of the motor.

[0016] Optionally, a hanging ring is fixedly provided on the third driving block.

[0017] By adopting the above technical solution, the hanging ring makes it convenient for the staff to move the third driving block.

[0018] Optionally, a first limiting plate is hinged on the support plate, a second limiting plate is hinged on the first limiting plate, and the second limiting plate is hinged to the resistance furnace body.

[0019] By adopting the above technical solution, the first limiting plate and the second limiting plate can limit the sliding range of the support plate in the resistance furnace body, thereby improving the safety of the device.

[0020] In summary, the present application includes at least one of the following beneficial technical effects:

[0021] 1. After placing the silicon carbide raw material on the tray, push the support plate into the resistance furnace body, and then lock the connecting sleeve and the output shaft of the motor together through the connecting mechanism, so that the motor can drive the connecting sleeve to rotate, and the connecting sleeve drives the tray to rotate, thereby achieving uniform heating of the silicon carbide raw material.

[0022] 2. The connecting sleeve can be lifted by the lifting assembly so that the connecting sleeve and the output shaft of the motor are plugged together, thereby making the first positioning tooth and the second positioning tooth engage with each other, ensuring that the output shaft of the motor can drive the connecting sleeve to rotate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0024] Figure 2 It is a cross-sectional view of an embodiment of the present application.

[0025] Figure 3 yes Figure 2 A partial enlarged schematic diagram of part A.

[0026] Figure 4 yes Figure 2 A partial enlarged schematic diagram of part B.

[0027] Figure numerals: 1. resistance furnace body; 21. support plate; 22. support rod; 221. waist-shaped hole; 23. connecting rod; 231. connecting ring; 24. connecting sleeve; 241. ring groove; 25. material tray; 3. motor; 41. first positioning tooth; 42. second positioning tooth; 51. first drive block; 52. second drive block; 53. third drive block; 54. hanging ring; 61. first limit plate; 62. second limit plate. DETAILED DESCRIPTION

[0028] The technical solution in this application is further described in detail below in conjunction with the accompanying drawings.

[0029] The present application discloses a raw material heating device for producing silicon carbide products. Figure 1 and Figure 2 A raw material heating device for producing silicon carbide products includes a resistance furnace body 1, in which a support plate 21 is slidably arranged so that the support plate 21 can be pulled out of the resistance furnace body 1.

[0030] Please refer to Figure 3A support rod 22 is fixedly arranged on the support plate 21, and the support rod 22 is arranged vertically. A connecting rod 23 is slidably arranged on the support rod 22, and the connecting rod 23 can slide up and down along the support rod 22. A connecting sleeve 24 is rotatably arranged on the connecting rod 23, and the connecting sleeve 24 can rotate freely relative to the connecting rod 23. The connecting sleeve 24 is sleeved on the support rod 22. A material tray 25 is fixedly arranged on the connecting sleeve 24, and the material tray 25 is used to place silicon carbide raw materials.

[0031] Please refer to Figure 1 and Figure 2 The top of the resistance furnace body 1 is fixedly provided with a motor 3, the output shaft of the motor 3 extends into the resistance furnace body 1, and the connecting sleeve 24 is provided with a connecting mechanism for locking with the output shaft of the motor 3. When in use, the silicon carbide raw material is placed on the material tray 25, the output shaft of the motor 3 and the connecting sleeve 24 are locked by the connecting mechanism, and then the motor 3 is started, so that the motor 3 drives the connecting sleeve 24 and the material tray 25 to rotate together, thereby realizing uniform heating of the silicon carbide raw material.

[0032] For details, please refer to Figure 3 The support rod 22 is provided with a waist-shaped hole 221, which extends along the length direction of the support rod 22, and the connecting rod 23 is slidably connected to the waist-shaped hole 221. The setting of the waist-shaped hole 221 can limit the sliding track of the connecting rod 23 on the support rod 22, so that the connecting rod 23 can only slide up and down along the waist-shaped hole 221, thereby improving the stability of the structure.

[0033] For details, please refer to Figure 3 A connecting ring 231 is fixedly arranged on the connecting rod 23, and the connecting ring 231 is sleeved on the supporting rod 22. An annular groove 241 matching with the connecting ring 231 is provided on the inner wall of the connecting sleeve 24. The annular groove 241 is arranged around the outer circumference of the connecting sleeve 24, and the connecting ring 231 and the annular groove 241 are slidably connected. Through the matching arrangement of the connecting ring 231 and the annular groove 241, the connecting sleeve 24 can be stably rotated on the connecting rod 23. At the same time, when the connecting rod 23 moves up and down along the waist-shaped hole 221, the connecting sleeve 24 can be driven to move up and down together through the connecting ring 231.

[0034] For details, please refer to Figure 3 and Figure 4The connection mechanism includes a first positioning tooth 41 fixedly arranged on the output shaft of the motor 3, a second positioning tooth 42 fixedly arranged on the inner wall of the connecting sleeve 24, and a lifting assembly for controlling the lifting and lowering of the connecting sleeve 24. When the connecting sleeve 24 is lifted by the lifting assembly, the output shaft of the motor 3 can be inserted into the connecting sleeve 24, so that the first positioning tooth 41 and the second positioning tooth 42 are engaged, thereby realizing the locking of the output shaft of the motor 3 and the connecting sleeve 24. Through this locking method, it can be ensured that the output shaft of the motor 3 can drive the connecting sleeve 24 and the material tray 25 to rotate together when rotating, thereby realizing uniform heating of the silicon carbide raw material.

[0035] Please refer to Figure 3 The lifting assembly includes a first driving block 51 slidably arranged on the support rod 22, a second driving block 52 slidably arranged on the support plate 21, and a third driving block 53 rotatably arranged on the support plate 21. The first driving block 51 is fixedly connected to the connecting rod 23, and the second driving block 52 is located below the first driving block 51 and abuts against the first driving block 51. The third driving block 53 is rotatably arranged on the support plate 21 and can be rotated to abut against the second driving block 52. When the third driving block 53 abuts against the second driving block 52, the second driving block 52 can be pushed to move toward the direction close to the first driving block 51 by continuously rotating the third driving block 53, so that the second driving block 52 pushes the first driving block 51 to rise, thereby driving the connecting rod 23 to rise, and the connecting rod 23 drives the connecting sleeve 24 to rise together through the connecting ring 231. When the third driving block 53 rotates to be completely embedded in the support plate 21, the first driving block 51 rises to the highest point, so that the connecting sleeve 24 and the output shaft of the motor 3 are connected together. The contact surface between the third driving block 53 and the support plate 21 is provided with anti-slip grooves, which improves the stability of the third driving block 53 and enables the third driving block 53 to remain firm when it rotates to be embedded in the support plate 21 .

[0036] Please refer to Figure 1 and Figure 3 In order to facilitate the rotation of the third driving block 53, a hanging ring 54 is fixedly provided on the third driving block 53. At the same time, the hanging ring 54 also facilitates the staff to use external tools (such as a hook, etc.), so that the third driving block 53 can be easily rotated and the support plate 21 can be pulled out of the resistance furnace body 1 through the hanging ring 54, so as to avoid the staff from contacting the third driving block 53 and the support plate 21 at high temperature.

[0037] In addition, please refer to Figure 1In order to limit the sliding range of the support plate 21 in the resistance furnace body 1 and improve the safety of the device. A first limiting plate 61 is hinged on both sides of the support plate 21, and a second limiting plate 62 is hinged on one end of the first limiting plate 61 away from the support plate 21, and an end of the second limiting plate 62 away from the first limiting plate 61 is hinged to the resistance furnace body 1. When the support plate 21 slides outward to a certain position, it will be blocked by the first limiting plate 61 and the second limiting plate 62, thereby preventing it from completely sliding out of the resistance furnace body 1.

[0038] The implementation principle of the embodiment of the present application is as follows: prepare silicon carbide raw materials, place them on the material tray 25, and push the support plate 21 into the resistance furnace body 1. By rotating the third driving block 53, the first driving block 51 is pushed up, thereby driving the connecting sleeve 24 to rise and lock it with the output shaft of the motor 3. Start the motor 3, drive the connecting sleeve 24 to rotate, and the connecting sleeve 24 drives the material tray 25 to rotate, so that the silicon carbide raw materials are evenly heated.

[0039] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A raw material heating device for producing silicon carbide products, characterized in that: include: A resistance furnace body (1), wherein a support plate (21) is slidably arranged inside the resistance furnace body (1), a support rod (22) is fixedly arranged on the support plate (21), a connecting rod (23) is slidably arranged on the support rod (22), a connecting sleeve (24) is rotatably arranged on the connecting rod (23), a material tray (25) is fixedly arranged on the connecting sleeve (24), a motor (3) is fixedly arranged on the resistance furnace body (1), an output shaft of the motor (3) extends into the resistance furnace body (1), and a connecting mechanism for locking with the output shaft of the motor (3) is arranged on the connecting sleeve (24).

2. A raw material heating device for producing silicon carbide products according to claim 1, characterized in that: The support rod (22) is provided with a waist-shaped hole (221), and the connecting rod (23) is slidably connected to the waist-shaped hole (221).

3. The raw material heating device for producing silicon carbide products according to claim 1, characterized in that: A connecting ring (231) is fixedly provided on the connecting rod (23), the connecting ring (231) is sleeved on the supporting rod (22), an annular groove (241) is provided on the connecting sleeve (24), and the connecting ring (231) and the annular groove (241) are slidably connected.

4. The raw material heating device for producing silicon carbide products according to claim 1, characterized in that: The connection mechanism comprises a first positioning tooth (41) fixedly arranged on the output shaft of the motor (3), a second positioning tooth (42) fixedly arranged on the connecting sleeve (24), and a lifting assembly for controlling the lifting of the connecting sleeve (24); when the output shaft of the motor (3) is inserted into the connecting sleeve (24), the first positioning tooth (41) and the second positioning tooth (42) are engaged.

5. A raw material heating device for producing silicon carbide products according to claim 4, characterized in that: The lifting assembly comprises a first driving block (51) slidably arranged on the support rod (22), a second driving block (52) slidably arranged on the support plate (21), and a third driving block (53) rotatably arranged on the support plate (21); the first driving block (51) and the connecting rod (23) are fixed, the first driving block (51) and the second driving block (52) are in contact with each other, and when the third driving block (53) is in contact with the second driving block (52), the second driving block (52) moves in a direction close to the first driving block (51) and pushes the first driving block (51) to rise.

6. A raw material heating device for producing silicon carbide products according to claim 5, characterized in that: A hanging ring (54) is fixedly provided on the third driving block (53).

7. The raw material heating device for producing silicon carbide products according to claim 1, characterized in that: A first limiting plate (61) is hingedly connected to the support plate (21), a second limiting plate (62) is hingedly connected to the first limiting plate (61), and the second limiting plate (62) is hingedly connected to the resistance furnace body (1).

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