A modification equipment for the production of electronic-grade silicon micropowder
By combining spiral blades and stirring shaft, the problems of poor mixing effect and low material discharge efficiency in the production of electronic-grade silicon micro powder are solved, achieving uniform mixing and efficient discharge of the mixture.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIANYUNGANG HAOSEN MINERAL PROD CO LTD
- Filing Date
- 2025-08-13
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing technology, the mixing and stirring effect in the production process of electronic-grade silicon micropowder is poor, the mixture cannot be continuously discharged, and the material discharge efficiency at the bottom of the tank is low.
The design employs a spiral blade and a stirring shaft. The spiral blade rotates inside the discharge pipe to continuously extract the mixture, while the pusher plate on the stirring shaft pushes the material to the inner wall of the tank. The combination of the rotation of the spiral blade and the stirring blade enables continuous mixing and discharge of the mixture.
It improves the mixing effect and material discharge efficiency, ensuring that all materials in the tank are mixed evenly and discharged smoothly.
Smart Images
Figure CN224506916U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of silicon micropowder modification technology, specifically a modification equipment for the production of electronic-grade silicon micropowder. Background Technology
[0002] Electronic-grade silicon micropowder is a high-performance non-metallic material with extremely small particle sizes, typically reaching the micrometer or even nanometer scale. It plays a crucial role in many fields due to its excellent physical and chemical properties, such as thermal stability, chemical stability, insulation, and low expansion. During the production of electronic-grade silicon micropowder, modification processing is carried out, involving the mixing of electronic-grade silicon micropowder with modifiers.
[0003] In the "A Silicon Micropowder Modification Device" with authorization announcement number "CN219502482U", the material enters the tank through the feed inlet. The motor drives the modification blades to rotate via belt drive, mixing and stirring the material to change its properties. The material is discharged from the discharge port through the discharge seat. During the discharge process, when the telescopic component drives the scraper to move forward, the scraper rotates clockwise under the action of resistance, ensuring that the scraper can smoothly pass over the material. When the scraper retracts, it is in a vertical position and contacts the fixed seat. The fixed seat restricts the scraper from rotating counterclockwise, thereby achieving the purpose of scraping and unblocking the material, preventing the material from clogging the discharge port, and ensuring the smooth discharge of the material. However, during the stirring process, the material is only mixed and stirred by the modification blades, resulting in poor mixing effect. At the same time, during the discharge process, the material cannot be continuously discharged, and the material at the bottom of the tank cannot be effectively discharged, resulting in low efficiency. Utility Model Content
[0004] The purpose of this invention is to provide a modification device for the production of electronic-grade silicon micropowder, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a modification device for the production of electronic-grade silicon micropowder, comprising a tank, a base fixedly installed at the bottom of the tank, a feed pipe provided at the top of the tank, a discharge pipe fixedly installed on the outer side of the bottom of the tank, a first spiral blade installed inside the discharge pipe, a discharge port provided at one end of the discharge pipe, a stirring shaft rotatably installed in the middle of the tank via a mechanical seal, a pusher plate fixedly installed at the bottom end of the stirring shaft, the pusher plate being in contact with the inner wall of the bottom end of the tank, a material cylinder symmetrically fixedly installed on the inner wall of the top end of the tank, a second spiral blade installed inside the material cylinder, and symmetrical discharge holes opened on the outer side of the top end of the material cylinder.
[0006] As a further preferred embodiment of this technical solution, a fixed shaft is rotatably mounted inside the discharge pipe via a bearing, the first spiral blade is fixedly mounted on the outside of the fixed shaft, a first drive motor is fixedly mounted at one end of the discharge pipe, and the output end of the first drive motor is fixedly connected to one end of the fixed shaft via a shaft connector.
[0007] As a further preferred embodiment of this technical solution, the pusher plate is arc-shaped, and the protruding side of the pusher plate faces the rotation direction of the pusher plate.
[0008] As a further preferred embodiment of this technical solution, a second drive motor is fixedly installed at the bottom of the tank, and the output end of the second drive motor is fixedly connected to the bottom of the stirring shaft through a shaft connector. Stirring blades are fixedly installed at the bottom of the stirring shaft.
[0009] As a further preferred embodiment of this technical solution, a rotating shaft is symmetrically mounted on the top of the tank via a bearing, the second spiral blade is fixedly mounted on the outside of the rotating shaft, a driven gear is fixedly mounted on the top of the rotating shaft, and a driving gear is fixedly mounted on the top of the stirring shaft. The driving gear meshes with both driven gears simultaneously.
[0010] As a further preferred embodiment of this technical solution, an extension tube is welded to the outer side of the material cylinder at the position corresponding to the material drop hole.
[0011] As a further preferred embodiment of this technical solution, a striking plate is provided on the inner wall of the tank at the discharge position corresponding to the end of the extension pipe.
[0012] This utility model provides a modification equipment for the production of electronic-grade silicon micropowder, which has the following beneficial effects:
[0013] (1) This utility model conveys electronic-grade silicon micro powder and modifier into the tank through the feed pipe and mixes them. During the mixing process, the second spiral blade is controlled to rotate inside the barrel. The rotation of the second spiral blade can convey the mixture of electronic-grade silicon micro powder and modifier at the bottom of the tank to the top of the barrel. The mixture will be discharged from the discharge hole. It can mix the mixture of electronic-grade silicon micro powder and modifier at different heights, thereby improving the mixing effect of electronic-grade silicon micro powder and modifier.
[0014] (2) By driving the first spiral blade to rotate inside the discharge pipe, the present invention can continuously extract the mixture of electronic grade silicon micro powder and modifier inside the tank and discharge it from the outlet. At the same time, the stirring shaft is in a continuous rotating state, and the pusher plate on the stirring shaft will push the mixture of electronic grade silicon micro powder and modifier on the inner wall of the bottom of the tank. Through the arc design of the pusher plate, the mixture of electronic grade silicon micro powder and modifier can be pushed to the inner wall of the tank. When the material is in the discharge pipe position, it will enter the discharge pipe, which can improve the discharge effect of the material. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is one of the overall cross-sectional structural schematic diagrams of this utility model;
[0017] Figure 3 This is the second schematic diagram of the overall cross-sectional structure of this utility model;
[0018] Figure 4 for Figure 3 Enlarged view of point A in the middle;
[0019] Figure 5 for Figure 3 Enlarged view at point B
[0020] In the diagram: 1. Tank body; 2. Base; 3. Feed pipe; 4. Discharge pipe; 5. First spiral blade; 6. Stirring shaft; 7. Pusher plate; 8. Material cylinder; 9. Second spiral blade; 10. Fixed shaft; 11. First drive motor; 12. Second drive motor; 13. Stirring blade; 14. Rotating shaft; 15. Driven gear; 16. Driven gear; 17. Extension pipe; 18. Impact plate; 19. Drop hole; 20. Discharge port. Detailed Implementation
[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0022] This utility model provides a technical solution: such as Figures 1 to 5As shown in this embodiment, a modification device for producing electronic-grade silicon micropowder includes a tank 1. A base 2 is fixedly installed at the bottom of the tank 1. A feed pipe 3 is provided at the top of the tank 1. A discharge pipe 4 is fixedly installed on the outer side of the bottom of the tank 1. A first spiral blade 5 is installed inside the discharge pipe 4. A discharge port 20 is provided at one end of the discharge pipe 4. A stirring shaft 6 is rotatably installed in the middle of the tank 1 through a mechanical seal. A pusher plate 7 is fixedly installed at the bottom end of the stirring shaft 6. The pusher plate 7 is in contact with the inner wall of the bottom end of the tank 1. A material cylinder 8 is symmetrically fixedly installed on the inner wall of the top end of the tank 1. A second spiral blade 9 is installed inside the material cylinder 8. A discharge hole 19 is symmetrically opened on the outer side of the top end of the material cylinder 8. The pusher plate 7 is arc-shaped, and the protruding side of the pusher plate 7 faces the rotation direction of the pusher plate 7. Electronic-grade silicon micropowder and modifier are conveyed into the tank 1 from the feed pipe 3 and stirred and mixed. During the mixing process, the second spiral blade 9 is controlled. Inside the cylinder 8, the rotation of the second spiral blade 9 transports the mixture of electronic-grade silicon powder and modifier at the bottom of the tank 1 from the bottom to the top of the cylinder 8. The mixture is then discharged from the discharge hole 19. This process can mix the electronic-grade silicon powder and modifier at different heights, improving the mixing effect. When discharging the material, the first spiral blade 5 is driven to rotate inside the discharge pipe 4, continuously extracting the mixture of electronic-grade silicon powder and modifier inside the tank 1 and discharging it from the discharge port 20. Simultaneously, the stirring shaft 6 rotates continuously, and the pusher plate 7 on the stirring shaft 6 pushes the mixture of electronic-grade silicon powder and modifier on the inner wall of the bottom of the tank 1. The arc design of the pusher plate 7 pushes the mixture of electronic-grade silicon powder and modifier to the inner wall of the tank 1. When the material is at the position of the discharge pipe 4, it enters the discharge pipe 4, improving the discharge effect.
[0023] like Figures 1 to 5 As shown, a fixed shaft 10 is rotatably mounted inside the discharge pipe 4 via a bearing. The first spiral blade 5 is fixedly mounted on the outside of the fixed shaft 10. A first drive motor 11 is fixedly mounted at one end of the discharge pipe 4. The output end of the first drive motor 11 is fixedly connected to one end of the fixed shaft 10 via a shaft connector.
[0024] By energizing the first drive motor 11, the first drive motor 11 will drive the fixed shaft 10 to rotate, thereby driving the first spiral blade 5 to rotate inside the discharge pipe 4, which can continuously extract the mixture of electronic-grade silicon micro powder and modifier inside the tank 1.
[0025] like Figures 1 to 5As shown, a second drive motor 12 is fixedly installed at the bottom of the tank 1. The output end of the second drive motor 12 is fixedly connected to the bottom of the stirring shaft 6 through a shaft connector. A stirring blade 13 is fixedly installed at the bottom of the stirring shaft 6.
[0026] By controlling the second drive motor 12 to operate, the output shaft of the second drive motor 12 will control the rotation of the stirring shaft 6, which will drive the stirring blades 13 on the stirring shaft 6 to stir and mix the mixture of electronic grade silicon micro powder and modifier.
[0027] like Figures 1 to 5 As shown, a rotating shaft 14 is symmetrically mounted on the top of the tank body 1 via a bearing. The second spiral blade 9 is fixedly mounted on the outside of the rotating shaft 14. A driven gear 15 is fixedly mounted on the top of the rotating shaft 14. A driving gear 16 is fixedly mounted on the top of the stirring shaft 6. The driving gear 16 meshes with both driven gears 15 simultaneously.
[0028] like Figures 1 to 5 As shown, an extension tube 17 is welded to the outer side of the material cylinder 8 at the position corresponding to the material drop hole 19.
[0029] The mixture of electronic-grade silicon micro powder and modifier located at the bottom of the tank 1 is conveyed from the bottom of the barrel 8 to the top of the barrel 8 and then discharged from the discharge hole 19. The mixture is conveyed through the extension pipe 17, which can convey the mixture to the inner wall of the tank 1, thereby dispersing the mixture located in the middle of the tank 1 to the inner wall of the tank 1 and improving the mixing effect.
[0030] like Figures 1 to 5 As shown, a striking plate 18 is provided on the inner wall of the tank body 1 at the end of the extension pipe 17 where the material is discharged.
[0031] The mixture of electronic-grade silicon powder and modifier discharged from the end of the extension tube 17 will be struck on the impact plate 18, which can further disperse the mixture of electronic-grade silicon powder and modifier and further improve the mixing effect of electronic-grade silicon powder and modifier.
[0032] This utility model provides a modification device for the production of electronic-grade silicon micropowder, the specific working principle of which is as follows:
[0033] In operation, the device feeds electronic-grade silicon powder and modifier into tank 1 through feed pipe 3. The second drive motor 12 is energized, and its output shaft drives the stirring shaft 6 to rotate. This, in turn, drives the stirring blades 13 on the stirring shaft 6 to mix the electronic-grade silicon powder and modifier. Simultaneously, the rotation of the stirring shaft 6 drives the drive gear 16, which in turn meshes with the driven gear 15, causing the rotating shaft 14 to rotate. This, in turn, drives the second spiral blades 9 to rotate inside the material cylinder 8. The rotation of the second spiral blades 9 transports the electronic-grade silicon powder and modifier mixture from the bottom of tank 1 to the top of the material cylinder 8. The mixture is then discharged from the discharge hole 19 and conveyed through the extension pipe 17 to both sides of the material cylinder 8, i.e., the inner wall of tank 1. This allows for mixing of electronic-grade silicon powder and modifier mixtures at different heights. To improve the mixing effect of electronic-grade silicon powder and modifier, the mixture of electronic-grade silicon powder and modifier discharged from the end of the extension tube 17 will strike the impact plate 18, which can further disperse the mixture of electronic-grade silicon powder and modifier, further improving the mixing effect. When discharging the material, the first drive motor 11 is energized, which drives the fixed shaft 10 to rotate, thereby driving the first spiral blade 5 to rotate inside the discharge tube 4. The mixture of electronic-grade silicon powder and modifier inside the tank 1 is continuously extracted and discharged from the outlet 20. At the same time, the stirring shaft 6 is continuously rotating, and the pusher plate 7 on the stirring shaft 6 pushes the mixture of electronic-grade silicon powder and modifier on the inner wall of the bottom of the tank 1. The arc design of the pusher plate 7 can push the mixture of electronic-grade silicon powder and modifier to the inner wall of the tank 1. When the material is at the discharge pipe 4, it will enter the discharge pipe 4, which can improve the discharge effect of the material.
[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A modified device for producing electronic grade silicon powder, comprising a tank body (1), a base (2) is fixedly installed at the bottom of the tank body (1), and a feeding pipe (3) is arranged at the top of the tank body (1), characterized in that: The bottom outer side of the tank body (1) is fixedly provided with a discharge pipe (4), the inside of the discharge pipe (4) is provided with a first spiral blade (5), one end of the discharge pipe (4) is provided with a discharge port (20), the middle of the tank body (1) is rotatably provided with a stirring shaft (6) through a mechanical seal, the bottom end of the stirring shaft (6) is fixedly provided with a pushing plate (7), the pushing plate (7) is in contact with the bottom end inner wall of the tank body (1), the top end inner wall of the tank body (1) is symmetrically fixedly provided with a barrel (8), the inside of the barrel (8) is provided with a second spiral blade (9), the top end outer side of the barrel (8) is symmetrically provided with a dropping hole (19).
2. The modification equipment for producing electronic grade silicon micro powder according to claim 1, characterized in that: The inside of the discharge pipe (4) is rotatably provided with a fixed shaft (10) through a bearing, the first spiral blade (5) is fixedly provided on the outside of the fixed shaft (10), one end of the discharge pipe (4) is fixedly provided with a first driving motor (11), the output end of the first driving motor (11) is fixedly connected with one end of the fixed shaft (10) through a shaft connector.
3. The modification device for producing electronic grade silicon micro powder according to claim 1, characterized in that: The pushing plate (7) is arc-shaped, and the protruding side of the pushing plate (7) faces the rotating direction of the pushing plate (7).
4. The modification device for producing electronic grade silicon micro powder according to claim 1, characterized in that: The bottom end of the tank body (1) is fixedly provided with a second driving motor (12), the output end of the second driving motor (12) is fixedly connected with the bottom end of the stirring shaft (6) through a shaft connector, the bottom end of the stirring shaft (6) is fixedly provided with a stirring blade (13).
5. The modification device for producing electronic grade silicon micro powder according to claim 4, characterized in that: The top end of the tank body (1) is rotatably provided with a rotating shaft (14) through a bearing, the second spiral blade (9) is fixedly provided on the outside of the rotating shaft (14), the top end of the rotating shaft (14) is fixedly provided with a driven gear (15), the top end of the stirring shaft (6) is fixedly provided with a driving gear (16), the driving gear (16) is simultaneously meshed and connected with two driven gears (15).
6. The modification apparatus for producing electronic grade silicon fine powder according to claim 1, characterized in that: The outside of the barrel (8) is welded with an extension pipe (17) at the position corresponding to the dropping hole (19).
7. The modification device for producing electronic grade silicon micro powder according to claim 6, characterized in that: The inner wall of the tank body (1) is provided with a beating plate (18) at the position corresponding to the end discharge position of the extension pipe (17).