Stirring and mixing device for silicon carbide production and processing
By introducing an air jet ring and an inclined mixing device into the silicon carbide production unit, the problem of batch-to-batch quality inconsistency caused by residual materials in the mixing tank is solved. This achieves efficient material removal and uniform mixing, ensures product quality consistency, and provides convenient material collection operations.
Patent Information
- Application Number
- CN202520312449.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-02-26
AI Technical Summary
During the silicon carbide production process, residual powdery material in the mixing tank may cause batch-to-batch quality inconsistencies.
A mixing and stirring device for silicon carbide production and processing was designed, including an air jet ring and a nozzle. The device removes residual materials by air jetting through an air pump, and increases shear force by using an inclined support plate and a stirring paddle. Combined with a controller to control the operation of the motor and air pump, it ensures that each batch of materials is mixed evenly.
It effectively removes residual materials, ensures consistent product quality for each batch, improves mixing efficiency, and enables precise and convenient material collection.
Smart Images
Figure CN223887836U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mixing technology, and in particular to a mixing device for silicon carbide production and processing. Background Technology
[0002] Silicon carbide (SiC) is a compound semiconductor material composed of silicon and carbon, renowned for its excellent physical and chemical properties. It possesses superior electrical properties and high-temperature resistance, making it widely used in power electronic devices, including components such as diodes and transistors. Furthermore, due to its excellent wear resistance and corrosion resistance, SiC is also used in the manufacture of advanced ceramics, cutting tools, and abrasives.
[0003] Mixing and stirring is a crucial pretreatment step in the silicon carbide production process. This process aims to ensure that all raw material components are evenly distributed, providing a consistent basis for subsequent synthesis or reaction. The main raw materials for silicon carbide preparation are silica sand (SiO2) and various carbonaceous materials (such as petroleum coke, coal coke, etc.). These materials need to undergo pretreatment processes such as screening, crushing, and mixing to ensure the consistency of the final mixture.
[0004] When silicon carbide raw materials are stirred and mixed, the mixed material is usually discharged through the outlet. Most of the material will naturally fall into the collection area below due to gravity. However, some powdery material may remain inside the mixing tank. If the next batch of mixing is started directly, the residual material may cause batch-to-batch quality inconsistencies.
[0005] Therefore, it is necessary to design a mixing and stirring device for silicon carbide production to solve the above problems and ensure that the quality of each batch of products remains stable and consistent. Utility Model Content
[0006] To overcome the drawback that residual material in the mixing tank may cause batch-to-batch quality inconsistencies when mixing the next batch, this utility model provides a mixing and stirring device for silicon carbide production and processing.
[0007] The technical implementation scheme of this utility model is as follows: A mixing and stirring device for silicon carbide production and processing includes a support frame, a first support plate, a second support plate, a mixing tank, a first motor, a bevel gear, a stirring paddle, a controller, an air pump, an air pipe, an air jet ring, and a nozzle. The first support plate is fixedly connected to the lower right side of the support frame, and the second support plate is fixedly connected to the top of the support frame. A mixing tank is fixedly connected between the first and second support plates. A discharge port is opened at the bottom of the mixing tank. A stirring paddle is rotatably connected inside the mixing tank, and the upper end of the stirring paddle penetrates through the top of the mixing tank. The second support plate is mounted on the rear side of the top. There is a first motor located at the upper rear side of the mixing tank. The output shaft end of the first motor and the through part of the stirring paddle are both fixedly connected to bevel gears, which mesh with each other. A controller is provided on the top front side of the first support plate. An air pump is provided on the top of the second support plate to the left of the first motor. An air pipe is connected to and communicates with the jet head of the air pump. An air jet ring is provided on the upper part of the stirring paddle near the inner top of the mixing tank. The air pipe passes through one of the bevel gears and the upper part of the stirring paddle and communicates with the air jet ring. Several nozzles are fixedly connected to the outer periphery and lower part of the air jet ring. The first motor and the air pump are both electrically connected to the controller.
[0008] As a further preferred embodiment, the top right sides of the first support plate and the second support plate are inclined at the same angle, and the overall inclination angle of the mixing barrel is consistent with that of the top right sides of the first support plate and the second support plate.
[0009] As a further preferred option, the outer material of the nozzle is a plastic sheet.
[0010] As a further preferred embodiment, it also includes a feeding hopper, a conveying pipe, a second motor, and a screw conveyor. The feeding hopper is symmetrically placed on the front and back left side of the top of the second support plate. The right side of each feeding hopper is connected to and communicates with the conveying pipe. The conveying pipe is connected to and communicates with the upper side of the mixing hopper. The second motor is installed at the lower part of the outside of each feeding hopper. The output shaft of the second motor passes through the lower part of the feeding hopper, and a screw conveyor is fixedly connected to the output shaft of each second motor. The screw conveyor is rotatably connected to the inside of the conveying pipe and connected to the mixing hopper. The conveying pipe and the screw conveyor are both inclined in the same way as the slope of the top of the second support plate. The second motor is also electrically connected to the controller.
[0011] As a further preferred embodiment, it also includes a feeding pipe, a baffle, a bidirectional screw, a guide rod, a fixing block, and a torsion wheel. The feeding pipe is connected to the discharge port of the mixing tank at the lower inner part of the first support plate. A baffle that penetrates the feeding pipe is slidably connected to the front inner side of the first support plate, and the baffle blocks the discharge port of the feeding pipe. A bidirectional screw is rotatably connected to the front right side of the support frame, and a guide rod is connected to the rear right side of the support frame. Two opposing fixing blocks are connected between the bidirectional screw and the guide rod. The front inner part of the fixing block is rotatably connected to the bidirectional screw, and the rear inner part of the fixing block is slidably connected to the guide rod. The two fixing blocks are in contact with the outer periphery of the feeding pipe. A torsion wheel is fixedly connected to the right end of the bidirectional screw.
[0012] As a further preferred option, an electronic scale is also included, with the scale installed on the lower right side of the support frame and electrically connected to the controller.
[0013] The beneficial effects of this utility model are: 1. This utility model removes residual materials by setting an air jet ring at the top of the mixing barrel and starting the air pump to spray the inside of the mixing barrel, thereby avoiding the effect of material residue on the quality of the next batch.
[0014] 2. By setting the first support plate, the second support plate, and the mixing tank in an inclined position, this utility model allows the stirring paddle to apply greater shearing and pushing forces to the material during operation, which helps to accelerate the dispersion and homogenization process of the material, thereby improving the overall stirring efficiency.
[0015] 3. This utility model has a feeding pipe installed under the mixing bucket, an electronic scale installed under the feeding pipe, and a fixing block connected to the outside of the feeding pipe by a bidirectional screw. The collection bag can be fixed by simply turning the torsion wheel, thus achieving a precise and convenient material collection effect. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model.
[0017] Figure 2 This is a partial cross-sectional view of the components of this utility model, including the support frame, mixing tank, and controller.
[0018] Figure 3 This is a partial cross-sectional side view of the bevel gear, stirring paddle, and feeding hopper components of this utility model.
[0019] Figure 4 This is a partial cross-sectional view of the components of this utility model, including the air pipe, air jet ring, and bevel gear.
[0020] Figure 5 This is a partial cross-sectional view of the components of this utility model, including the bevel gear, stirring paddle, and mixing tank.
[0021] Figure 6 This is a schematic diagram of the structure of the air pipe, air jet ring, and nozzle of this utility model.
[0022] Figure 7 This is a partial cross-sectional view of the components of this utility model, including the feeding pipe, baffle, and bidirectional screw. In the attached drawings, the reference numerals are: 1-support frame, 2-first support plate, 3-second support plate, 4-mixing tank, 5-first motor, 6-bevel gear, 7-stirring paddle, 8-controller, 9-air pump, 10-air pipe, 11-air jet ring, 12-nozzle, 13-feeding tank, 14-conveying pipe, 15-second motor, 16-spiral conveying paddle, 17-feeding pipe, 18-baffle, 19-bidirectional screw, 20-guide rod, 21-fixing block, 22-torsion wheel, 23-electronic scale. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will describe this utility model in further detail with reference to the accompanying drawings. It is hereby declared that the terms "up," "down," "left," "right," "front," "back," "inner," and "outer," etc., appearing or about to appear in this document, are based solely on the accompanying drawings and are not intended to specifically limit this utility model.
[0024] Example: A mixing and stirring device for silicon carbide production and processing, such as... Figures 1-6As shown, the system includes a support frame 1, a first support plate 2, a second support plate 3, a mixing tank 4, a first motor 5, a bevel gear 6, a stirring paddle 7, a controller 8, an air pump 9, an air pipe 10, an air jet ring 11, and a nozzle 12. The first support plate 2 is bolted to the lower right side of the support frame 1, and the second support plate 3 is bolted to the top of the support frame 1. The mixing tank 4 is welded between the first support plate 2 and the second support plate 3. The top right sides of the first support plate 2 and the second support plate 3 are inclined at the same angle. The overall inclination angle of the mixing tank 4 is the same as that of the top right sides of the first support plate 2 and the second support plate 3. This inclined shape allows the stirring paddle to apply greater shearing and pushing forces to the material during operation, which helps to accelerate the dispersion and homogenization process of the material, thereby improving the overall mixing efficiency. A discharge port is opened at the bottom of the mixing tank 4, and the stirring paddle 7 is rotatably connected inside the mixing tank 4. The upper end of the mixing paddle 7 penetrates the top of the mixing tank 4. The first motor 5 is installed on the rear side of the top of the second support plate 3. The first motor 5 is located on the upper rear side of the mixing tank 4. The output shaft end of the first motor 5 and the through part of the mixing paddle 7 are connected by a bevel gear 6 through a key. The two bevel gears 6 mesh with each other. The controller 8 is provided on the front side of the top of the first support plate 2. The air pump 9 is provided on the top of the second support plate 3 to the left of the first motor 5. The air pump 9 is connected to and communicates with an air pipe 10 on the jet head. The jet ring 11 is provided on the upper part of the mixing paddle 7 near the inner top of the mixing tank 4. The air pipe 10 passes through one of the bevel gears 6 and the upper part of the mixing paddle 7 and communicates with the jet ring 11. Several nozzles 12 are connected to the outer periphery and lower part of the jet ring 11 by an integral molding method. The outer material of the nozzle 12 is a plastic sheet. The combined effect of the jet ring 11 and the nozzles 12 can prevent material from flying into the nozzles and causing blockage during mixing. The first motor 5 and the air pump 9 are both electrically connected to the controller 8.
[0025] When a batch of materials is mixed and ready for the next batch, the mixed materials are discharged through the outlet. Most of the materials will naturally fall into the collection area below due to gravity. However, some powdery materials may remain inside the mixing tank. If the next batch of mixing is started directly, the residual materials may cause inconsistencies in batch quality. Therefore, the air pump 9 can be started by the controller 8 to spray air into the mixing tank 4 to remove the residue. The air pump 9 sprays air through the air pipe 10 and the air ring 11 to each nozzle 12, thus blowing away the plastic sheet on the outside of the nozzle 12. If there is a lot of residual material, the first motor 5 can be started to drive the bevel gear 6 to rotate, causing the mixing paddle 7 and the air ring 11 to rotate together, thereby expanding the spray range until the residue is completely removed. Then the air pump 9 and the first motor 5 are turned off to avoid the residual material affecting the quality of the next batch.
[0026] like Figures 1-3As shown, it also includes a feeding hopper 13, a conveying pipe 14, a second motor 15, and a screw conveyor 16. The feeding hopper 13 is symmetrically placed on the top left side of the second support plate 3. The right side of the feeding hopper 13 is connected to and communicates with the conveying pipe 14. The conveying pipe 14 is connected to and communicates with the upper side of the mixing tank 4. The second motor 15 is provided at the lower part of the outside of the feeding hopper 13. The output shaft of the second motor 15 passes through the lower part of the feeding hopper 13, and the screw conveyor 16 is connected to the output shaft of the second motor 15 by welding. The screw conveyor 16 is rotatably connected to the inside of the conveying pipe 14 and connected to the mixing tank 4. The conveying pipe 14 and the screw conveyor 16 are both inclined in the same way as the slope of the top of the second support plate 3. The second motor 15 is also electrically connected to the controller 8.
[0027] When using this mixing device in silicon carbide production and processing, the operator first puts the materials to be mixed into the feeding hopper 13 in a certain proportion. Then, the second motor 15 is started through the controller 8. The second motor 15 drives the screw conveyor 16 to rotate counterclockwise, so that the materials in the feeding hopper 13 are screwed into the mixing hopper 4 through the conveying pipe 14 and the screw conveyor 16. After the materials are conveyed, the second motor 15 is turned off to complete the feeding. Then, the mixing is carried out. The operator first starts the first motor 5 through the controller 8 to mix the materials in the mixing hopper 4. The first motor 5 drives the bevel gear 6 to rotate counterclockwise. The bevel gear 6 meshes with it and drives the mixing paddle 7 to rotate clockwise. The mixing paddle 7 mixes the materials in the mixing hopper 4. After the mixing is completed, the first motor 5 is turned off through the controller 8 to complete the mixing.
[0028] like Figure 1 , Figure 3 ,and Figure 7 As shown, it also includes a feeding pipe 17, a baffle 18, a bidirectional screw 19, a guide rod 20, a fixing block 21, a torsion wheel 22, and an electronic scale 23. The feeding pipe 17 is connected to the discharge port of the mixing tank 4 inside the first support plate 2. The baffle 18, which passes through the feeding pipe 17, is slidably connected to the front side of the first support plate 2, and the baffle 18 blocks the discharge port of the feeding pipe 17. The bidirectional screw 19 is rotatably connected to the lower front side of the right side of the support frame 1. Guide rods 20 are provided on both the left and right sides of the two bidirectional screws 19. 0. A guide rod 20 is connected to the lower right rear side of the support frame 1. Two opposing fixing blocks 21 are connected to the bidirectional screw 19 and the guide rod 20. The inner front part of the fixing block 21 is rotatably connected to the bidirectional screw 19, and the inner rear part of the fixing block 21 is slidably connected to the guide rod 20. The two fixing blocks 21 are in contact with the outer periphery of the feed pipe 17. A torsion wheel 22 is fixedly connected to the right end of the bidirectional screw 19. An electronic scale 23 is provided on the lower right side of the support frame 1. The electronic scale 23 is electrically connected to the controller 8.
[0029] After mixing, the material is discharged through the outlet of the mixing tank 4. First, the operator turns the torsion wheel 22 counterclockwise. The front double screw 19 drives the rear double screw 19 to rotate counterclockwise synchronously through the guide rod 20. Subsequently, the double screw 19 and the guide rod 20 drive the fixing blocks 21 on both sides to move away from each other. After moving a certain distance, the collection bag is placed between the lower outer periphery of the discharge pipe 17 and the fixing block 21. Then, the torsion wheel 22 is turned clockwise, and the fixing blocks 21 move towards each other until the collection bag is fixed. After the collection bag is fixed, the baffle 18 is pulled forward and slids so that the baffle 18 is separated from the discharge pipe 17 and the outlet is fully opened. Then, the material inside the mixing tank 4 falls into the collection bag. The bottom of the collection bag is placed on the electronic scale 23. After collecting the required precise amount of material, the baffle 18 is pushed backward and slids to the inside of the discharge pipe 17 to close the outlet, thus completing the collection of one bag. If more is needed, the above content is repeated.
[0030] Although this disclosure has been shown and described with reference to specific exemplary embodiments thereof, those skilled in the art will understand that various changes in form and detail may be made to this disclosure without departing from the spirit and scope of the disclosure as defined by the appended claims and their equivalents. Therefore, the scope of this disclosure should not be limited to the above embodiments, but should be defined not only by the appended claims, but also by their equivalents.
Claims
1. A mixing and stirring device for silicon carbide production and processing, comprising a support frame (1), a first support plate (2), a second support plate (3), a mixing tank (4), a first motor (5), a bevel gear (6), a stirring paddle (7), and a controller (8). The first support plate (2) is fixedly connected to the lower right side of the support frame (1), and the second support plate (3) is fixedly connected to the top of the support frame (1). The mixing tank (4) is fixedly connected between the first support plate (2) and the second support plate (3). A discharge port is provided at the bottom. A stirring paddle (7) is rotatably connected inside the mixing tank (4). The upper end of the stirring paddle (7) penetrates the top of the mixing tank (4). A first motor (5) is installed on the rear side of the top of the second support plate (3). The first motor (5) is located on the upper rear side of the mixing tank (4). The output shaft end of the first motor (5) and the through part of the stirring paddle (7) are both fixedly connected to bevel gears (6). The two bevel gears (6) mesh with each other. A controller (8) is provided on the front side of the top of the first support plate (2). Its features are: It also includes an air pump (9), an air pipe (10), an air jet ring (11), and a nozzle (12). The air pump (9) is located on the top of the second support plate (3) to the left of the first motor (5). The air pipe (10) is connected to and communicates with the air jet head of the air pump (9). An air jet ring (11) is provided on the upper part of the stirring paddle (7) near the inner top of the mixing tank (4). The air pipe (10) passes through one of its bevel gears (6) and the upper part of the stirring paddle (7) and communicates with the air jet ring (11). Several nozzles (12) are fixedly connected to the outer periphery and lower part of the air jet ring (11). The first motor (5) and the air pump (9) are both electrically connected to the controller (8).
2. The mixing and stirring device for silicon carbide production and processing according to claim 1, characterized in that: The top right side of the first support plate (2) and the second support plate (3) are inclined at the same angle, and the overall inclination angle of the mixing barrel (4) is consistent with that of the top right side of the first support plate (2) and the second support plate (3).
3. The mixing and stirring device for silicon carbide production and processing according to claim 2, characterized in that: The outer material of the nozzle (12) is a plastic sheet.
4. The mixing and stirring device for silicon carbide production and processing according to claim 3, characterized in that: It also includes a feeding hopper (13), a conveying pipe (14), a second motor (15), and a screw conveyor (16). The feeding hopper (13) is symmetrically placed on the left side of the top of the second support plate (3). The right side of the feeding hopper (13) is connected to and connected to the conveying pipe (14). The conveying pipe (14) is connected to and connected to the upper side of the mixing hopper (4). The second motor (15) is provided at the lower part of the outside of the feeding hopper (13). The output shaft of the second motor (15) passes through the lower part of the feeding hopper (13). The screw conveyor (16) is fixedly connected to the output shaft of the second motor (15). The screw conveyor (16) is rotatably connected to the inside of the conveying pipe (14) and connected to the mixing hopper (4). The conveying pipe (14) and the screw conveyor (16) are both inclined in the same way as the slope of the top of the second support plate (3). The second motor (15) is also electrically connected to the controller (8).
5. A mixing and stirring device for silicon carbide production and processing according to claim 4, characterized in that: It also includes a feed pipe (17), a baffle (18), a bidirectional screw (19), a guide rod (20), a fixing block (21), and a torsion wheel (22). The feed pipe (17) is connected to the discharge port of the mixing tank (4) at the lower part of the first support plate (2). The baffle (18) that passes through the feed pipe is slidably connected to the front side of the first support plate (2), and the baffle (18) blocks the discharge port of the mixing tank (4). The bidirectional screw is rotatably connected to the lower right front side of the support frame (1). (19) A guide rod (20) is connected to the lower right rear side of the support frame (1). Two opposing fixing blocks (21) are connected between the bidirectional screw (19) and the guide rod (20). The inner front part of the fixing block (21) is rotatably connected to the bidirectional screw (19), and the inner rear part of the fixing block (21) is slidably connected to the guide rod (20). The two fixing blocks (21) are in contact with the outer periphery of the feed tube. A torsion wheel (22) is fixedly connected to the right end of the bidirectional screw (19).
6. A mixing and stirring device for silicon carbide production and processing according to claim 5, characterized in that: It also includes an electronic scale (23), which is fixedly connected to the lower right side of the support frame (1), and the electronic scale (23) is electrically connected to the controller (8).