A granulating device for industrial silicon powder

Abstract

The utility model provides a kind of industrial silicon powder granulating device, comprising: granulator body, the screening device of being equipped in the discharge port below of granulator body, the conveying plate of being fixed in the discharge port below of screening device, the powder elevator of being equipped in granulator body, conveying plate side, the inlet of powder elevator of being equipped in the lower end of conveying plate, the discharge port of powder elevator being equipped in the above of granulator body;Through above-mentioned scheme, screening device can promptly, effectively screen the particle produced by granulator, effectively separate qualified particle meeting granularity requirement and unqualified particle or powder, powder recycling is realized by powder elevator, avoid the waste of powder, reduce the consumption of raw material, reduce the raw material procurement cost of enterprise.

Description

Technical Field

[0001] This utility model relates to the field of industrial silicon granulation technology, specifically to an industrial silicon powder granulation device. Background Technology

[0002] In industrial production, industrial silicon powder is an important raw material. It is typically in powder form, with fine particles and high flowability, which presents numerous inconveniences during storage, transportation, and use. To improve its performance and processing convenience, granulation of industrial silicon powder has become an effective solution. Granular industrial silicon powder has better flowability, facilitating storage and transportation and reducing dust generation. In subsequent processing, granular materials can be mixed more uniformly with other materials, improving product quality and production efficiency.

[0003] Currently, although some granulation equipment exists on the market, these devices often have some problems when granulating industrial silicon powder. Some granulation equipment has unsatisfactory granulation effect, producing particles of uneven size, which is difficult to meet the particle size requirements of different production processes. Some equipment has a low utilization rate of industrial silicon powder during the granulation process, generating a lot of powdery waste and wasting raw materials. Other equipment lacks an effective screening and powder recycling mechanism after granulation, resulting in an imperfect production process and increased production costs. Summary of the Invention

[0004] This utility model provides an industrial silicon powder granulation device to solve the problem of high production costs caused by the lack of effective screening and powder recycling mechanisms in existing granulators.

[0005] To solve the above problems, this utility model provides an industrial silicon powder granulation device, including: a granulator body, a screening device located below the discharge port of the granulator body, a conveying plate fixed below the discharge port of the screening device, a powder elevator located on the side of the granulator body and the conveying plate, an inlet of the powder elevator located at the lower end of the conveying plate, and an outlet of the powder elevator located above the granulator body.

[0006] Through the above scheme, the screening device can screen the granules produced by the granulator in a timely and effective manner, effectively separating qualified granules that meet the particle size requirements from unqualified granules or powder. The powder elevator realizes the recycling and reuse of powder, avoiding powder waste, reducing raw material consumption, and lowering the raw material procurement costs of enterprises.

[0007] According to one embodiment of the present invention, the granulator body includes: a feeding hopper, a double-roller mechanism located below the feeding hopper and meshed with gears, and a crushing mechanism located below the double-roller mechanism and meshed with gears. The double-roller mechanism, meshed with gears, performs preliminary extrusion granulation on the silicon powder entering from the feeding hopper. The relative movement and pressure between the double rollers ensure that the silicon powder is uniformly stressed during the extrusion process, thereby forming relatively uniform particle shapes, laying a good foundation for the subsequent granulation process, and helping to improve the particle size uniformity of the final product.

[0008] According to one embodiment of the present invention, the above-mentioned double roller mechanism and crushing mechanism are controlled by a first servo motor. Through the above scheme, the extrusion speed of the double rollers and the crushing speed of the crushing mechanism can be flexibly adjusted to ensure that the granulation and crushing effects reach the optimal state.

[0009] According to one embodiment of the present invention, the crushing mechanism is composed of two toothed rollers. Through the above scheme, during the crushing process, the protrusions of the toothed rollers can increase the contact area and force with the silicon powder particles, and more effectively crush the particles, quickly crushing large silicon powder particles into fine particles that meet the requirements, thereby improving the crushing efficiency.

[0010] According to one embodiment of the present invention, the roller surface of the above-mentioned double roller mechanism is provided with a plurality of particle grooves. Through the above scheme, when silicon powder enters between the double rollers, it will be squeezed into these particle grooves and subjected to uniform and stable pressure in the grooves, making it easier to form particles with regular shape and compact structure.

[0011] According to one embodiment of the present invention, the screening device includes: a screen basket, a connecting rod connected to the screen basket, a turntable hinged to the connecting rod, a pulley that drives the turntable to rotate, a second servo motor that drives the pulley to rotate, a support frame for supporting the screen basket, support rods in four directions of the screen basket, a slider at one end of the support rod, and a slide rail on the support frame. Through this scheme, the screen basket, with the connecting rod hinged to the turntable, reciprocates with the pulley, causing the industrial silicon powder particles inside the screen basket to continuously tumble and jump, fully dispersing them and preventing the accumulation and clogging of particles. This improves screening efficiency, ensuring that each particle has a greater chance to pass through the screen, achieving fast and efficient screening. Simultaneously, the continuous movement of the screen basket also allows particles of different sizes to quickly separate on the screen surface, with larger particles remaining on the upper layer and smaller particles falling through the screen, further accelerating the screening speed.

[0012] According to one embodiment of the present invention, the side wall of the screen basket is provided with a through hole communicating with the receiving basket. Through the above scheme, during the screening process, when the industrial silicon powder particles are screened to the required small particle size portion, they enter the receiving basket through the through hole in the side wall of the screen basket. Since the material can be transferred in time, the screen basket can make room more quickly to receive new materials to be screened, ensuring the continuity of the production process, making the operation of the entire screening production line smoother, and improving the overall production efficiency.

[0013] According to one embodiment of the present invention, the bottom screen of the screen basket is inclined at an angle of 5° to 20° towards the receiving basket. With the above scheme, the material falls into the receiving basket through the through hole under the action of gravity and shaking when the screen is tilted and reciprocating, making the entire screening production line run more smoothly, avoiding screen blockage due to untimely material transfer, and improving screening efficiency.

[0014] According to one embodiment of the present invention, the conveyor plate is designed with a wave-shaped structure. Through this design, the material is constrained within the wave-shaped groove, which provides a buffering effect and prevents it from rolling or slipping during the conveying process. This improves the stability of the material conveying and ensures that the material can be accurately and completely conveyed to the designated position.

[0015] According to one embodiment of this utility model, the powder elevator includes: hoppers, a chain fixedly connecting several hoppers, sprockets located at the upper and lower ends of the powder elevator, a fixed wheel located on the side of the upper sprocket, and a third servo motor that drives the sprockets to rotate via a pulley. With this configuration, multiple hoppers are fixedly connected to the chain, and as the sprockets rotate, the hoppers can continuously lift industrial silicon powder from a lower to a higher position. This continuous conveying method avoids the time waste that may result from intermittent lifting, greatly improves the efficiency of material lifting, and can meet the needs of large-scale production for rapid material conveying.

[0016] The technical advantages of this application are as follows:

[0017] This application provides an industrial silicon powder granulation device. The sieving device in this device can timely and effectively sieve the granules produced by the granulator, effectively separating qualified granules that meet the particle size requirements from unqualified granules or powder. The powder elevator realizes the recycling and reuse of powder, avoiding powder waste, reducing raw material consumption, and lowering the raw material procurement costs of enterprises. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an industrial silicon powder granulation device provided by this utility model.

[0019] Figure 2This is a cross-sectional structural diagram of an industrial silicon powder granulation device provided by this utility model.

[0020] Figure 3 This is a schematic diagram of the structure of an industrial silicon powder granulation and screening device provided by this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Granulator body; 101. Feed hopper; 102. First servo motor; 103. Double roller mechanism; 104. Crushing mechanism;

[0023] 2. Screening device; 201. Turntable; 202. Connecting rod; 203. Support frame; 204. Second servo motor; 205. Screen basket; 206. Receiving basket; 207. Pulley; 208. Sliding block; 209. Slide rail; 210. Support rod;

[0024] 3. Conveyor plate;

[0025] 4. Powder elevator; 401. Sprocket; 402. Hopper; 403. Chain; 404. Third servo motor; 405. Fixed wheel; 406. Discharge port; 407. Inlet. Detailed Implementation

[0026] The following will be combined with the appendix Figures 1-3 The embodiments of the technical solution of this application are described in detail below. The following embodiments are only used to illustrate the technical solution of this application more clearly, and are therefore only examples and should not be used to limit the scope of protection of this application.

[0027] Reference Figures 1-3 This utility model provides an industrial silicon powder granulation device, including: a granulator body 1, a screening device 2 located below the discharge port 406 of the granulator body 1, a conveying plate 3 fixed below the discharge port 406 of the screening device 2, a powder elevator 4 located on the side of the granulator body 1 and the conveying plate 3, an inlet 407 of the powder elevator 4 located at the lower end of the conveying plate 3, and an outlet 406 of the powder elevator 4 located above the granulator body 1.

[0028] Through the above scheme, the screening device 2 can screen the granules produced by the granulator in a timely and effective manner, effectively separating qualified granules that meet the particle size requirements from unqualified granules or powders. The powder elevator 4 realizes the recycling and reuse of powder, avoiding powder waste, reducing the consumption of raw materials, and lowering the raw material procurement costs of enterprises.

[0029] The granulator body 1 includes: a feed hopper 101, a double roller mechanism 103 located below the feed hopper 101 and meshed with gears, and a crushing mechanism 104 located below the double roller mechanism 103 and meshed with gears. The double roller mechanism 103, meshed with gears, performs preliminary extrusion granulation on the silicon powder entering from the feed hopper 101. The relative movement and pressure between the double rollers ensure that the silicon powder is uniformly stressed during the extrusion process, thereby forming relatively uniform particle shapes, laying a good foundation for the subsequent granulation process and helping to improve the particle size uniformity of the final product.

[0030] The aforementioned double-roller mechanism 103 and crushing mechanism 104 are controlled by the first servo motor 102. Through the above scheme, the extrusion speed of the double rollers and the crushing speed of the crushing mechanism 104 can be flexibly adjusted to ensure that the granulation and crushing effects reach the optimal state.

[0031] The aforementioned crushing mechanism 104 consists of two toothed rollers. Through this scheme, during the crushing process, the protrusions of the toothed rollers can increase the contact area and force with the silicon powder particles, thereby more effectively crushing the particles and rapidly breaking large silicon powder particles into fine particles that meet the requirements, thus improving the crushing efficiency.

[0032] The roller surface of the aforementioned double roller mechanism 103 is provided with several particle grooves. Through the above scheme, when silicon powder enters between the double rollers, it will be squeezed into these particle grooves and subjected to uniform and stable pressure in the grooves, making it easier to form particles with regular shape and compact structure.

[0033] The aforementioned screening device 2 includes: a screen basket 205, a connecting rod 202 connected to the screen basket 205, a turntable 201 hinged to the connecting rod 202, a pulley 207 driving the turntable 201 to rotate, a second servo motor 204 driving the pulley 207 to rotate, a support frame 203 for supporting the screen basket 205, support rods 210 in four directions of the screen basket 205, a slider 208 at one end of the support rod 210, and a slide rail 209 on the support frame 203. Through the above scheme, the connecting rod 205... 2. The screen basket 205, which is hinged to the turntable 201, reciprocates with the pulley 207, causing the industrial silicon powder particles inside the screen basket 205 to continuously tumble and jump, fully dispersing them and avoiding mutual accumulation and blockage between particles. This improves screening efficiency and ensures that each particle has more opportunities to pass through the screen, achieving fast and efficient screening. At the same time, the continuous movement of the screen basket 205 can also cause particles of different sizes to quickly separate on the screen surface, with large particles remaining on the upper layer and small particles falling through the screen, further accelerating the screening speed.

[0034] The screen basket 205 has a through hole on its side wall that communicates with the receiving basket 206. With the above scheme, during the screening process, when the industrial silicon powder particles are screened to the required small particle size, the screen basket 205 enters the receiving basket 206 through the through hole on its side wall. The screen basket 205 can make room more quickly to receive new materials to be screened, ensuring the continuity of the production process, making the operation of the entire screening production line smoother, and improving the overall production efficiency.

[0035] The bottom screen of the aforementioned screen basket 205 is inclined at an angle of 5° to 20° towards the receiving basket 206. With this scheme, since the material cannot automatically enter the receiving basket 206, by setting the inclination angle, the material, under the action of gravity and shaking, causes large particles that have not passed through the screen holes to slide down the screen surface and eventually enter the receiving basket 206 on the side wall when the screen is tilted and reciprocating. The size of this inclination angle needs to be adjusted according to the characteristics of the material. Since the material can be transferred in time, the entire screening production line operates more smoothly, avoids the screen from being blocked due to the untimely transfer of material, and improves screening efficiency.

[0036] The aforementioned conveyor plate 3 is designed with a wave-shaped structure. Through this design, the material is constrained within the wave-shaped groove, which provides a buffering effect and prevents it from rolling or slipping during the conveying process. This improves the stability of the material conveying process and ensures that the material can be accurately and completely conveyed to the designated location.

[0037] The aforementioned powder elevator 4 includes: hoppers 402, a chain 403 fixedly connecting several hoppers 402, sprockets 401 located at the upper and lower ends of the powder elevator 4, fixed wheels 405 located on the side of the upper sprocket 401, and a third servo motor 404 that drives the sprockets 401 to rotate via a pulley 207. Through this design, multiple hoppers 402 are fixedly connected to the chain 403. As the sprockets 401 rotate, the hoppers 402 can continuously lift industrial silicon powder from a lower to a higher position. This continuous conveying method avoids the time waste that may result from intermittent lifting, improves the efficiency of material lifting, and can meet the needs of large-scale production for rapid material conveying.

[0038] Working principle:

[0039] Industrial silicon powder enters the granulator body 1 from the feed hopper 101. Below the feed hopper, the silicon powder is fed into the double roller mechanism 103. The double rollers rotate through gear meshing, applying extrusion pressure to the silicon powder. The surface of the double rollers has particle grooves, and the silicon powder is pressed into the grooves, where it is subjected to uniform and stable pressure, forming a preliminary particle shape and structure. The extrusion speed of the double rollers is controlled by the first servo motor 102.

[0040] The particles emerging from the double-roller mechanism 103 fall into the crushing mechanism 104 below. The crushing mechanism consists of two toothed rollers that rotate through gear meshing to crush the particles. The protrusions on the toothed rollers increase the contact area and force with the particles, enabling larger particles to be crushed into acceptable sizes more effectively. The crushing speed of the crushing mechanism is also controlled by the first servo motor 102 to optimize the crushing effect.

[0041] The crushed particles fall from the discharge port 406 of the granulator body 1 to the screening device 2 below. The core of the screening device 2 is the screen basket 205, which is driven by a second servo motor 204 to rotate the pulley 207. The pulley drives the screen basket 205 to reciprocate through the turntable 201 and the connecting rod 202. The screen basket 205 is supported by a support frame 203, and the support rod 210 and the slider 208 slide on the slide rail 209 to ensure the stable reciprocating motion of the screen basket. The reciprocating motion of the screen basket 205 causes the silicon powder particles to continuously tumble, jump, and disperse on the screen, thereby preventing clogging and promoting rapid particle stratification.

[0042] During the screening process, since the material cannot automatically enter the receiving basket 206, by setting an inclination angle of 5°~20°, the material, under the influence of gravity and reciprocating motion of the inclined screen, causes large particles that do not pass through the screen holes to slide down the screen surface and enter the receiving basket 206 on the side wall, and finally be discharged from the discharge port of the screening device. While the screen basket 205 is reciprocating, fine particles that do not meet the particle size requirements fall through the screen of the screen basket 205 and from the screening device 2 onto the conveyor plate 3 below. The conveyor plate 3 has a wave-shaped structure, which helps to stably transport the material.

[0043] The conveyor plate 3 transports the substandard powder to the inlet 407 of the powder elevator 4 at its lower end. The powder elevator 4 drives the sprocket 401 to rotate via the third servo motor 404, thereby driving the hoppers 402 on the chain 403. These hoppers continuously lift the received powder from the lower position upwards. The lifted powder is discharged from the outlet 406 of the powder elevator 4 and sent back to the granulator body 1 to participate in the granulation process again.

[0044] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An industrial silicon powder granulation device, characterized in that, include: The granulator body (1), the screening device (2) located below the discharge port of the granulator body (1), the conveyor plate (3) fixed below the discharge port of the screening device (2), the powder elevator (4) located on the side of the granulator body (1) and the conveyor plate (3), the inlet (407) of the powder elevator (4) located at the lower end of the conveyor plate (3), and the outlet (406) of the powder elevator (4) located above the granulator body (1).

2. The industrial silicon powder granulation apparatus according to claim 1, characterized in that, The granulator body (1) includes: a feed hopper (101), a double roller mechanism (103) located below the feed hopper (101) and engaged by gears, and a crushing mechanism (104) located below the double roller mechanism (103) and engaged by gears.

3. The industrial silicon powder granulation apparatus according to claim 2, characterized in that, The double roller mechanism (103) and the crushing mechanism (104) are controlled by the first servo motor (102).

4. The industrial silicon powder granulation apparatus according to claim 3, characterized in that, The crushing mechanism (104) consists of two toothed rollers.

5. The industrial silicon powder granulation apparatus according to claim 2, characterized in that, The roller surface of the double roller mechanism (103) is provided with several particle grooves.

6. The industrial silicon powder granulation apparatus according to claim 1, characterized in that, The screening device (2) includes: a screen basket (205), a connecting rod (202) connected to the screen basket (205), a turntable (201) hinged to the connecting rod (202), a pulley (207) that drives the turntable (201) to rotate, a second servo motor (204) that drives the pulley (207) to rotate, a support frame (203) for supporting the screen basket (205), support rods (210) in four directions of the screen basket (205), a slider (208) at one end of the support rod (210), and a slide rail (209) on the support frame (203).

7. The industrial silicon powder granulation apparatus according to claim 6, characterized in that, The side wall of the screen basket (205) is provided with a through hole that communicates with the receiving basket (206).

8. The industrial silicon powder granulation apparatus according to claim 7, characterized in that, The bottom screen of the screen basket (205) is inclined at an angle of 5° to 20° towards the receiving basket (206).

9. The industrial silicon powder granulation apparatus according to claim 1, characterized in that, The conveyor plate (3) is designed with a wave-shaped structure.

10. The industrial silicon powder granulation apparatus according to claim 1, characterized in that, The powder elevator (4) includes: a hopper (402), a chain (403) that is fixedly connected to several hoppers (402), a sprocket (401) located at the upper and lower ends of the powder elevator (4), a fixed wheel (405) located on the side of the upper sprocket (401), and a third servo motor (404) that drives the sprocket to rotate via a pulley.

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