Screening device for metal silicon powder production

Abstract

The utility model discloses a screening device for production of metal silicon powder, which comprises a stainless steel vibrating screen, the stainless steel vibrating screen comprises a dustproof cover and a feeding pipe, and the lower end of the feeding pipe is fixed in the middle of the upper end of the dustproof cover; the synergistic assembly comprises a storage bin, a motor, a first rotating shaft, a stirring rod, a fixing plate, an electric push rod and a semicircular baffle, the storage bin is placed in the middle of the feeding pipe, the motor is fixed to the middle of the top end of the storage bin, the first rotating shaft is fixed to the output end of the motor, and the stirring rod is fixed to the middle section of the first rotating shaft; the fixed plate is fixed to the lower portion of the middle section of the inner side wall of the storage bin, the lower end of the electric push rod is fixed to the fixed plate, and one end of the semicircular baffle is hinged to the middle section of the inner side wall of the storage bin. The utility model discloses a silicon metal powder screening device which solves the problems that silicon metal powder easily absorbs moisture in air when making contact with the air, so that the silicon metal powder becomes wet, and the screening efficiency is seriously affected during screening.

Description

Technical Field

[0001] This utility model relates to the technical field of silicon metal powder production equipment, and in particular to a screening device for silicon metal powder production. Background Technology

[0002] In the production of metallic silicon powder, screening devices play a crucial role. They effectively remove impurities and non-compliant small particles from the silicon powder, reducing subsequent processing steps and extending equipment life. Multi-layer stainless steel vibrating screens can be used for screening.

[0003] When silicon metal powder comes into contact with air, it easily absorbs moisture from the air, causing the silicon metal powder to become damp. This will seriously affect the screening efficiency during screening. Therefore, there is a need to provide a screening device for the production of silicon metal powder to solve the above problem. Utility Model Content

[0004] The purpose of this invention is to provide a screening device for the production of metallic silicon powder, in order to solve the problem mentioned in the background art, that metallic silicon powder easily absorbs moisture from the air when it comes into contact with air, causing the metallic silicon powder to become damp, which seriously affects the screening efficiency during screening.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a screening device for the production of metallic silicon powder, comprising:

[0007] A stainless steel vibrating screen, comprising a dust cover and a feed pipe, wherein the lower end of the feed pipe is fixed to the middle of the upper end of the dust cover;

[0008] The efficiency-enhancing component includes a storage bin, a motor, a first rotating shaft, a stirring rod, a fixing plate, an electric push rod, and a semi-circular baffle. The storage bin is placed in the middle of the feed pipe, the motor is fixed at the top center of the storage bin, the first rotating shaft is fixed at the motor output end, the stirring rod is fixed in the middle section of the first rotating shaft, the fixing plate is fixed at the lower part of the middle section of the inner wall of the storage bin, the lower end of the electric push rod is fixed to the fixing plate, one end of the semi-circular baffle is hinged to the middle section of the inner wall of the storage bin, and one end of its lower surface is rotatably connected to the movable end of the electric push rod.

[0009] Furthermore, the efficiency enhancement component also includes limiting holes and limiting posts. The limiting holes are opened on the top outer ring of the feed pipe and are evenly distributed. The upper end of the limiting post is fixed to the outside of the storage bin, and the lower end is inserted into the limiting hole.

[0010] Furthermore, the efficiency-enhancing component also includes a conveying pipe and a spiral conveying plate, wherein the conveying pipe is fixed in the middle section of the top of the storage silo, and the spiral conveying plate is fixed in the lower end of the first rotating shaft.

[0011] Furthermore, the stainless steel vibrating screen also includes a vibrating screen body and a splash guard. The lower end of the vibrating screen body is fixed to the ground, the splash guard is fixed to the top of the vibrating screen body, and the dust cover is fixed to the upper end of the splash guard.

[0012] Furthermore, it also includes a homogenizing component, which includes a second rotating shaft, a torsion spring, and a guide groove. The second rotating shaft is fixed to the lower end of the first rotating shaft, the torsion spring is sleeved on one end of the second rotating shaft, and the guide groove is rotatably connected to the second rotating shaft.

[0013] Furthermore, the feed chute is inclined downwards, and its lower opening is located at the outer part of the top center of the vibrating screen body.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] I. This utility model, through the setting of an efficiency-enhancing component, aligns the limiting post at the lower end of the storage silo with the limiting hole and lowers it. The equipment is then started, and metallic silicon powder is added through the conveying pipe. The metallic silicon powder falls onto the semi-circular baffle. At the same time, the motor starts, and the first rotating shaft drives the stirring rod to stir and disperse the metallic silicon powder. After a period of time, the electric push rod on the fixed plate starts, the movable end retracts, and drives the semi-circular baffle to rotate downwards and open, allowing the metallic silicon powder to fall into the lower section of the storage silo. The baffle is then closed, and metallic silicon powder is added again. Meanwhile, the metallic silicon powder falling into the lower section of the storage silo is evenly distributed into the vibrating screen body by the rotating spiral conveyor plate. This setting allows for pre-dispersing of the metallic silicon powder to be screened, improving screening efficiency and preventing damp metallic silicon powder from clogging the vibrating screen body.

[0016] II. This utility model, through the setting of a uniform component, pulls the guide chute downwards before the storage bin is placed into the feed pipe, making it vertically downwards to facilitate insertion into the feed pipe. When the guide chute is inserted into the feed pipe, under the action of the torsion spring, the guide chute rotates upwards around the second rotating axis. Finally, the lower opening of the guide chute is tilted downwards. Then, the limiting post at the lower end of the storage bin is placed in the limiting hole. When the metallic silicon powder gradually falls from the spiral conveyor plate, it falls into the guide chute. With the rotation of the first rotating shaft, it is evenly sprinkled on the vibrating screen body. This setting can make the metallic silicon powder fall evenly into the vibrating screen body, further improving the screening efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the stainless steel vibrating screen structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the interior of the storage silo of this utility model;

[0021] Figure 4 For the present utility model Figure 3 Enlarged view of point A in the middle.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 10. Vibrating screen body; 11. Splash guard; 12. Dust cover; 13. Feed pipe; 20. Limiting hole; 21. Limiting post; 22. Storage bin; 220. Conveying pipe; 23. Motor; 24. First rotating shaft; 25. Stirring rod; 26. Fixing plate; 27. Electric push rod; 28. Semi-circular baffle; 29. ​​Spiral conveyor plate; 30. Second rotating shaft; 31. Torsion spring; 32. Guide chute. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0027] Please see Figure 1-3 As shown, this embodiment is a screening device for the production of metallic silicon powder, comprising:

[0028] A stainless steel vibrating screen, comprising a dust cover 12 and a feed pipe 13, wherein the lower end of the feed pipe 13 is fixed to the middle of the upper end of the dust cover 12.

[0029] The stainless steel vibrating screen also includes a vibrating screen body 10 and a splash guard 11. The lower end of the vibrating screen body 10 is fixed to the ground, the splash guard 11 is fixed to the top of the vibrating screen body 10, and the dust cover 12 is fixed to the upper end of the splash guard 11.

[0030] The vibrating screen body 10 is used to screen materials, the splash guard 11 prevents materials from splashing out, the dust cover 12 provides protection, and the feed pipe 13 is used to convey materials into the vibrating screen body 10.

[0031] The efficiency enhancement component includes a storage bin 22, a motor 23, a first rotating shaft 24, a stirring rod 25, a fixing plate 26, an electric push rod 27, and a semi-circular baffle 28. The storage bin 22 is placed in the middle of the feed pipe 13. The motor 23 is fixed at the top middle of the storage bin 22. The first rotating shaft 24 is fixed at the output end of the motor 23. The stirring rod 25 is fixed in the middle section of the first rotating shaft 24. The fixing plate 26 is fixed in the lower middle section of the inner wall of the storage bin 22. The lower end of the electric push rod 27 is fixed on the fixing plate 26. One end of the semi-circular baffle 28 is hinged to the middle section of the inner wall of the storage bin 22, and one end of its lower surface is rotatably connected to the movable end of the electric push rod 27.

[0032] The efficiency enhancement component also includes a limiting hole 20 and a limiting post 21. The limiting hole 20 is opened on the top outer ring of the feed pipe 13 and is evenly distributed. The upper end of the limiting post 21 is fixed to the outside of the storage bin 22, and the lower end is inserted into the limiting hole 20.

[0033] The efficiency enhancement components also include a conveying pipe 220 and a screw conveyor plate 29. The conveying pipe 220 is fixed to the middle section of the top of the storage bin 22, and the screw conveyor plate 29 is fixed to the lower end of the first rotating shaft 24.

[0034] The limiting hole 20 and the limiting post 21 serve as a connection. The storage bin 22 is made of transparent material and is used to store materials. The conveying pipe 220 is used to convey materials into the storage bin 22. The motor 23 provides a power source. The first rotating shaft 24 is used to transmit power. The stirring rod 25 converts power and stirs the materials. The fixing plate 26 provides support. The electric push rod 27 can realize position changes. One side of the semi-circular baffle 28 is hinged to the storage bin 22, and the other side has a slot that fits perfectly on the first rotating shaft 24. The two semi-circular baffles 28 are combined to divide the storage bin 22 into upper and lower halves. The upper half is used to disperse materials, and the lower half is used to convey materials. The spiral conveyor plate 29 can convey materials evenly.

[0035] Working principle:

[0036] Align the limiting post 21 at the lower end of the storage silo 22 with the limiting hole 20 and lower it. Start the equipment and add metallic silicon powder through the conveying pipe 220. The metallic silicon powder falls onto the semi-circular baffle 28. At the same time, the motor 23 starts, and the first rotating shaft 24 drives the stirring rod 25 to stir and disperse the metallic silicon powder. After a period of time, the electric push rod 27 on the fixed plate 26 starts, the movable end retracts, and drives the semi-circular baffle 28 to rotate downward and open. The metallic silicon powder falls into the lower section of the storage silo 22. Then close the baffle and continue to add metallic silicon powder. At this time, the metallic silicon powder that falls into the lower section of the storage silo 22 falls evenly into the vibrating screen body 10 along with the rotating spiral conveyor plate 29.

[0037] This step can pre-disperse the silicon powder that needs to be screened, which can improve the screening efficiency and also prevent the damp silicon powder from clogging the vibrating screen body 10.

[0038] Please see Figure 4 This embodiment, based on the above embodiments, further includes:

[0039] The uniform component includes a second rotating shaft 30, a torsion spring 31, and a guide groove 32. The second rotating shaft 30 is fixed to the lower end of the first rotating shaft 24, the torsion spring 31 is sleeved on one end of the second rotating shaft 30, and the guide groove 32 is rotatably connected to the second rotating shaft 30.

[0040] The feed chute 32 is inclined downwards, and its lower opening is located at the outer part of the top center of the vibrating screen body 10;

[0041] The second rotating shaft 30 serves as a connection, facilitating the rotation of the guide trough 32. The torsion spring 31 has a reset function, and the guide trough 32 serves as a guide.

[0042] Working principle:

[0043] Before inserting the storage bin 22 into the feed pipe 13, pull the guide trough 32 downward to make it vertically downward, so as to facilitate insertion into the feed pipe 13. When the guide trough 32 is inserted into the feed pipe 13, under the action of the torsion spring 31, the guide trough 32 rotates upward around the second rotating shaft 30. Finally, the lower opening of the guide trough 32 is tilted downward. Then, the limiting post 21 at the lower end of the storage bin 22 is placed in the limiting hole 20. When the metallic silicon powder gradually falls from the spiral conveyor plate 29, it falls into the guide trough 32. As the first rotating shaft 24 rotates, it is evenly sprinkled on the vibrating screen body 10.

[0044] This step allows the silicon powder to fall evenly into the vibrating screen body 10, further improving the screening efficiency.

[0045] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0046] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A screening device for the production of metallic silicon powder, characterized in that, include: A stainless steel vibrating screen, the stainless steel vibrating screen including a dust cover (12) and a feed pipe (13), the lower end of the feed pipe (13) being fixed to the middle of the upper end of the dust cover (12); The efficiency enhancement component includes a storage bin (22), a motor (23), a first rotating shaft (24), a stirring rod (25), a fixing plate (26), an electric push rod (27), and a semi-circular baffle (28). The storage bin (22) is placed in the middle of the feed pipe (13). The motor (23) is fixed at the middle of the top of the storage bin (22). The first rotating shaft (24) is fixed at the output end of the motor (23). The stirring rod (25) is fixed in the middle section of the first rotating shaft (24). The fixing plate (26) is fixed in the lower part of the middle section of the inner wall of the storage bin (22). The lower end of the electric push rod (27) is fixed on the fixing plate (26). One end of the semi-circular baffle (28) is hinged to the middle section of the inner wall of the storage bin (22), and one end of its lower surface is rotatably connected to the movable end of the electric push rod (27).

2. The screening device for producing metallic silicon powder according to claim 1, characterized in that, The enhancement component also includes a limiting hole (20) and a limiting post (21). The limiting hole (20) is opened on the top outer ring of the feed pipe (13) and is evenly distributed. The upper end of the limiting post (21) is fixed to the outside of the storage bin (22), and the lower end is inserted into the limiting hole (20).

3. The screening device for producing metallic silicon powder according to claim 1, characterized in that, The efficiency enhancement component also includes a material conveying pipe (220) and a spiral conveying plate (29). The material conveying pipe (220) is fixed in the middle of the top of the storage bin (22), and the spiral conveying plate (29) is fixed at the lower end of the first rotating shaft (24).

4. The screening device for producing metallic silicon powder according to claim 1, characterized in that, The stainless steel vibrating screen also includes a vibrating screen body (10) and a splash guard (11). The lower end of the vibrating screen body (10) is fixed on the ground, the splash guard (11) is fixed on the top of the vibrating screen body (10), and the dust cover (12) is fixed on the upper end of the splash guard (11).

5. A screening device for producing metallic silicon powder according to claim 1, characterized in that, It also includes a homogenizing component, which includes a second rotating shaft (30), a torsion spring (31) and a guide groove (32). The second rotating shaft (30) is fixed to the lower end of the first rotating shaft (24), the torsion spring (31) is sleeved on one end of the second rotating shaft (30), and the guide groove (32) is rotatably connected to the second rotating shaft (30).

6. A screening device for producing metallic silicon powder according to claim 5, characterized in that, The guide trough (32) is inclined downwards, and its lower opening is located at the outer part of the top center of the vibrating screen body (10).

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