Integrated equipment for fine grinding and surface modification of silicon powder

Abstract

The utility model relates to the technical field of silicon material processing, in particular to equipment for integrating fine grinding and surface modification of silicon powder. Comprising a bottom frame, the top of the bottom frame is fixedly connected with an upper frame, the bottom end of the bottom frame is fixedly connected with a supporting plate, the top of the bottom frame is fixedly connected with a conveying charging barrel, the top of the upper frame is fixedly connected with a feeding box, and the feeding box is connected with the feeding end of the conveying charging barrel through a connecting channel; the output end of the motor is fixedly connected with a first transmission wheel, a transmission rod rotationally connected with the transmission barrel penetrates through the transmission barrel, the outer side of the transmission rod is fixedly sleeved with a spiral blade, the end, away from the connecting channel, of the transmission barrel is provided with a discharging port, one end of the transmission rod is fixedly connected with a second transmission wheel, and a smashing mechanism is arranged in the feeding box. The utility model aims to solve the problems of complicated operation, low production efficiency, high environmental pollution risk, unstable product performance and the like in the existing silicon powder fine crushing and surface modification step-by-step treatment process.

Description

Technical Field

[0001] This utility model relates to the field of silicon material processing technology, and in particular to a device for the integrated fine grinding and surface modification of silicon powder. Background Technology

[0002] Silicon powder, as an important industrial raw material, is widely used in photovoltaics, semiconductors, ceramics, and composite materials. Its performance in applications largely depends on the fineness, morphology, and surface chemical properties of the powder particles. Traditional silicon powder production processes typically employ separate equipment, where the raw material is first crushed and ground using mechanical pulverizing equipment, and then transferred to surface modification equipment for coating or chemical treatment.

[0003] However, this step-by-step processing method has the following significant drawbacks: (1) The material needs to be transferred between multiple independent devices, which not only increases the number of operation steps, but also leads to a longer production cycle. The equipment occupies a large area and it is difficult to achieve continuous production. (2) The powder is easily polluted by the environment or agglomerates during the transfer process, which affects the uniformity of the surface modifier distribution and leads to fluctuations in the performance of the final product. (3) The separate equipment needs to be equipped with an independent power system and transmission structure, which has low energy utilization and the repeated feeding and conveying process is prone to material loss. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the existing step-by-step process of fine silicon powder grinding and surface modification has problems such as cumbersome operation, low production efficiency, high environmental pollution risk and unstable product performance.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a device for the integrated fine grinding and surface modification of silicon powder, including a base frame, an upper frame fixedly connected to the top of the base frame, a support plate fixedly connected to the bottom of the base frame, a conveying cylinder fixedly connected to the top of the base frame, a feeding box fixedly connected to the top of the upper frame, the feeding box and the feeding end of the conveying cylinder being connected through a connecting channel, a motor fixedly connected to the support plate, a first transmission wheel fixedly connected to the output end of the motor, a transmission rod rotatably connected to the conveying cylinder passing through it, a spiral blade fixedly sleeved on the outside of the transmission rod, a discharge port at the end of the conveying cylinder away from the connecting channel, a second transmission wheel fixedly connected to one end of the transmission rod, a grinding mechanism provided in the feeding box, a third transmission wheel connected to one end of the grinding mechanism, the first transmission wheel and the second transmission wheel being connected through a first transmission belt, and the second transmission wheel and the third transmission wheel being connected through a second transmission belt.

[0006] As a further improvement of this utility model, support blocks are installed at the four corners of the bottom of the base frame, and the four support blocks are distributed in a rectangular shape.

[0007] As a further improvement of this utility model, both ends of the transmission rod are provided with a first bearing seat mounted on the top of the base frame.

[0008] As a further improvement of this utility model, the crushing mechanism includes a first rotating rod and a second rotating rod that pass through and are rotatably connected to the feed box. The outer sides of the first rotating rod and the second rotating rod are each fixedly fitted with a crushing block that meshes with each other, and both crushing blocks are located inside the feed box. The ends of the first rotating rod and the second rotating rod away from the third transmission wheel are respectively fixedly connected with a first transmission tooth and a second transmission tooth, and the first transmission tooth and the second transmission tooth mesh with each other.

[0009] As a further improvement of this utility model, the first rotating rod is fixedly connected to the third transmission wheel.

[0010] As a further improvement of this utility model, both ends of the first rotating rod and the second rotating rod are rotatably connected to the feed box through the second bearing seat.

[0011] The beneficial effects of this utility model are as follows: (1) This utility model integrates the crushing mechanism and the conveying cylinder into the same equipment frame, and uses a connecting channel to directly connect the feed box and the conveying cylinder, thereby realizing continuous operation of silicon powder from crushing and conveying to discharge. The synergistic effect of the spiral blades and the transmission rod ensures uninterrupted material transmission, avoids the efficiency loss and pollution risk caused by multiple transfers in traditional separate equipment, significantly shortens the production cycle, and reduces the equipment footprint, thereby improving space utilization.

[0012] (2) This utility model adopts a single-motor driven multi-stage transmission structure (first transmission wheel → second transmission wheel → third transmission wheel), and achieves efficient power distribution through the first transmission belt and the second transmission belt, synchronously driving the crushing mechanism and the spiral blades. This design eliminates redundant power systems, reduces energy transmission levels, and effectively reduces energy consumption; the meshing structure between the transmission teeth and the crushing blocks further enhances crushing efficiency, ensures uniform silicon powder fineness, and, combined with the in-situ mixing of surface modifiers in a closed conveying cylinder, significantly improves product consistency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of an integrated device for fine grinding and surface modification of silicon powder according to the present invention;

[0014] Figure 2 This utility model relates to an integrated device for fine grinding and surface modification of silicon powder. Figure 1 Another perspective illustration;

[0015] Figure 3 This is a partial cross-sectional view of an integrated device for fine grinding and surface modification of silicon powder according to this utility model;

[0016] Figure 4 This is a partial structural schematic diagram of an integrated device for fine grinding and surface modification of silicon powder according to the present invention.

[0017] As shown in the figure: 1. Base frame; 2. Upper frame; 3. Support plate; 4. Conveying cylinder; 5. Feed box; 6. Connecting channel; 7. Motor; 8. First transmission wheel; 9. Transmission rod; 10. Spiral blade; 11. Discharge port; 12. Second transmission wheel; 13. Crushing mechanism; 1301. First rotating rod; 1302. Second rotating rod; 1303. Crushed block; 1304. First transmission gear; 1305. Second transmission gear; 1306. Second bearing seat; 14. Third transmission wheel; 15. First transmission belt; 16. Second transmission belt; 17. Support block; 18. First bearing seat. Detailed Implementation

[0018] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly mentioned in this specification are defined relative to their structure and are relative concepts. Therefore, they may vary depending on their location and usage; thus, these or other directional terms should not be interpreted as restrictive terms.

[0019] The singular forms “a,” “the,” and “the” used in this specification are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes one or more of the associated listed items, any or all possible combinations thereof.

[0020] To make the technical problems to be solved, the technical solutions, and the beneficial effects of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0021] This utility model provides the following: Figure 1-4The device shown is an integrated equipment for fine grinding and surface modification of silicon powder, comprising a base frame 1, an upper frame 2 fixedly connected to the top of the base frame 1, a support plate 3 fixedly connected to the bottom of the base frame 1, a conveying cylinder 4 fixedly connected to the top of the base frame 1, a feed box 5 fixedly connected to the top of the upper frame 2, the feed box 5 and the feed end of the conveying cylinder 4 being connected via a connecting channel 6, a motor 7 fixedly connected to the support plate 3, a first transmission wheel 8 fixedly connected to the output end of the motor 7, and a transmission rod 9 rotatably connected to the conveying cylinder 4 passing through the conveying cylinder 4. Both ends of the transmission rod 9 are provided with first bearing seats 18 installed on the top of the base frame 1. Spiral blades 10 are fixedly sleeved on the outside of the transmission rod 9. The end of the transmission cylinder 4 away from the connecting channel 6 is provided with a discharge port 11. One end of the transmission rod 9 is fixedly connected to a second transmission wheel 12. The feeding box 5 is provided with a crushing mechanism 13. One end of the crushing mechanism 13 is connected to a third transmission wheel 14. The first transmission wheel 8 and the second transmission wheel 12 are connected by a first transmission belt 15. The second transmission wheel 12 and the third transmission wheel 14 are connected by a second transmission belt 16.

[0022] like Figure 1 and Figure 2 As shown, in this utility model, support blocks 17 are installed at the four corners of the bottom of the base frame 1, and the four support blocks 17 are arranged in a rectangular shape, which enhances the stability of the equipment and ensures that it will not shake or tilt during high-speed operation.

[0023] like Figure 4 As shown, the crushing mechanism 13 of this utility model includes a first rotating rod 1301 and a second rotating rod 1302 that pass through and are rotatably connected to the feed box 5. Crushing blocks 1303 that mesh with each other are fixedly sleeved on the outer sides of the first rotating rod 1301 and the second rotating rod 1302, and the two crushing blocks 1303 are located inside the feed box 5. A first transmission tooth 1304 and a second transmission tooth 1305 are fixedly connected to the ends of the first rotating rod 1301 and the second rotating rod 1302 away from the third transmission wheel 14, and the first transmission tooth 1304 and the second transmission tooth 1305 mesh with each other. The first rotating rod 1301 is fixedly connected to the third transmission wheel 14. Both ends of the first rotating rod 1301 and the second rotating rod 1302 are rotatably connected to the feed box 5 through the second bearing seat 1306. Through the meshing of the first transmission tooth 1304 and the second transmission tooth 1305 and the mutual meshing of the crushing blocks 1303, the efficient crushing of silicon powder is achieved, while ensuring the uniformity of crushing.

[0024] Working Principle: In specific implementation, silicon powder raw material is added from the feed box 5. After the motor 7 is started, its output end drives the first transmission wheel 8 to rotate. The first transmission wheel 8 drives the second transmission wheel 12 to rotate synchronously through the first transmission belt 15, which in turn drives the transmission rod 9 and the spiral blade 10 to rotate in the conveying cylinder 4. At the same time, the second transmission wheel 12 also drives the third transmission wheel 14 to rotate through the second transmission belt 16. The third transmission wheel 14 then drives the first rotating rod 1301 and the second rotating rod 1302 in the crushing mechanism 13 to rotate. During the rotation of the first rotating rod 1301 and the second rotating rod 1302, the crushing blocks 1303 on their outer sides mesh with each other and crush the silicon powder. The crushed silicon powder enters the conveying cylinder 4 through the connecting channel 6 and is conveyed along the conveying cylinder 4 towards the discharge port 11 under the push of the spiral blade 10. During the conveying process, the silicon powder can be mixed with the pre-added surface modifier to achieve surface modification. Finally, the silicon powder after fine crushing and surface modification is discharged from the discharge port 11, completing the entire production process.

[0025] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model 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 of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An integrated device for fine grinding and surface modification of silicon powder, comprising a base frame (1), characterized in that: The base frame (1) is fixedly connected to the top of the upper frame (2), the base frame (1) is fixedly connected to the bottom end of the support plate (3), the base frame (1) is fixedly connected to the top of the conveying cylinder (4), the upper frame (2) is fixedly connected to the top of the feeding box (5), the feeding box (5) is connected to the feeding end of the conveying cylinder (4) through the connecting channel (6), the support plate (3) is fixedly connected to the motor (7), the output end of the motor (7) is fixedly connected to the first transmission wheel (8), the conveying cylinder (4) is provided with a transmission rod (9) that is rotatably connected to it, the transmission... A spiral blade (10) is fixedly sleeved on the outside of the rod (9). The conveying cylinder (4) has a discharge port (11) at one end away from the connecting channel (6). A second transmission wheel (12) is fixedly connected to one end of the transmission rod (9). A crushing mechanism (13) is provided in the feed box (5). A third transmission wheel (14) is connected to one end of the crushing mechanism (13). The first transmission wheel (8) and the second transmission wheel (12) are connected by a first transmission belt (15). The second transmission wheel (12) and the third transmission wheel (14) are connected by a second transmission belt (16).

2. The equipment for integrating fine grinding and surface modification of silicon powder according to claim 1, characterized in that: The base frame (1) has support blocks (17) installed at the four corners of its bottom, and the four support blocks (17) are arranged in a rectangular shape.

3. The equipment for integrating fine grinding and surface modification of silicon powder according to claim 1, characterized in that: Both ends of the transmission rod (9) are provided with a first bearing seat (18) installed on the top of the base frame (1).

4. The equipment for integrating fine grinding and surface modification of silicon powder according to claim 1, characterized in that: The crushing mechanism (13) includes a first rotating rod (1301) and a second rotating rod (1302) that pass through and are rotatably connected to the feed box (5). The first rotating rod (1301) and the second rotating rod (1302) are both fixedly fitted with intermeshing crushing blocks (1303) on their outer sides, and the two crushing blocks (1303) are both located inside the feed box (5). The first rotating rod (1301) and the second rotating rod (1302) are respectively fixedly connected with a first transmission tooth (1304) and a second transmission tooth (1305) at the ends away from the third transmission wheel (14), and the first transmission tooth (1304) and the second transmission tooth (1305) mesh with each other.

5. The equipment for integrating fine grinding and surface modification of silicon powder according to claim 4, characterized in that: The first rotating rod (1301) is fixedly connected to the third transmission wheel (14).

6. The equipment for integrating fine grinding and surface modification of silicon powder according to claim 4, characterized in that: Both ends of the first rotating rod (1301) and the second rotating rod (1302) are rotatably connected to the feed box (5) through the second bearing seat (1306).

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