A kind of silicon powder granulation is used to mill wheel device

Abstract

The application provides a grinding wheel device for silicon powder granulation, which comprises a base, a grinding disc arranged above the base, a spraying mechanism arranged above the grinding disc, a driving mechanism arranged on a central shaft of the grinding disc, a rotating disc coaxially connected with the driving mechanism, a grinding wheel and a scraping mechanism connected with the rotating disc, the scraping mechanism comprises a vertical arm connected with a side of the rotating disc and a first scraper plate arranged at a bottom of the vertical arm, the first scraper plate is attached to a bottom surface of the grinding disc, a slot is arranged on a surface of the vertical arm, the scraping mechanism further comprises a horizontal arm inserted into the slot and a second scraper plate arranged at an end of the horizontal arm, and the second scraper plate is attached to an inner wall of the grinding disc. The grinding wheel device can effectively clean the raw materials adhered to the inside of the grinding wheel device for silicon powder granulation.

Description

Technical Field

[0001] This application relates to the field of granulation equipment technology, specifically to a grinding wheel device for silicon powder granulation. Background Technology

[0002] Silicon powder is an important industrial raw material, widely used in electronics, chemicals, metallurgy, and other fields. To facilitate storage, transportation, use, and further processing, fine silicon powder often needs to be granulated to form particles with a specific size and strength. Granulation not only improves the flowability of silicon powder and reduces dust pollution, but also facilitates subsequent reaction processes.

[0003] In the silicon powder granulation process, existing milling roller devices have certain drawbacks. For example, due to the high fineness and large specific surface area of ​​silicon powder, and the fact that binders are often added during granulation, the raw material easily adheres to the inner wall and bottom of the device when compacted and rolled by the milling rollers under the action of the binder. This material adhesion gradually accumulates, forming one or more layers of agglomerates. This not only reduces the effective volume of the cavity, affecting the normal flow and distribution of the raw material, reducing granulation efficiency and product quality, but also increases the equipment load and may even affect the stability of the equipment. Utility Model Content

[0004] The purpose of this invention is to provide a grinding wheel device for silicon powder granulation, which can effectively clean the raw materials adhering to the inside of the grinding wheel device for silicon powder granulation.

[0005] This application is achieved through the following technical solution, specifically:

[0006] A grinding wheel device for silicon powder granulation includes: a base, a grinding disc disposed above the base, a spraying mechanism disposed above the grinding disc, a drive mechanism disposed on the central axis of the grinding disc, and a turntable coaxially connected to the drive mechanism. The turntable is connected to the grinding wheel and a scraping mechanism. The scraping mechanism includes a vertical arm connected to the side of the turntable and a first scraper installed at the bottom of the vertical arm. The first scraper is in contact with the bottom surface of the grinding disc. The surface of the vertical arm is provided with a groove. The scraping mechanism also includes a horizontal arm inserted into the groove and a second scraper installed at the end of the horizontal arm. The second scraper is in contact with the inner wall of the grinding disc.

[0007] In this design, a scraping mechanism connected to and rotating with the turntable is incorporated. This mechanism includes a first scraper that adheres to the bottom surface of the millstone and a second scraper that adheres to the inner wall of the millstone. The first scraper is installed at the bottom of the vertical arm, and the second scraper is installed at the end of the horizontal arm, which is inserted into a slot in the vertical arm. This structure allows the scraping function to simultaneously act on two key areas: the bottom and the inner wall of the millstone. Furthermore, because the scraping mechanism rotates synchronously with the millstone and the turntable, continuous scraping of adhering material is achieved. The first scraper continuously removes adhering material from the bottom surface of the millstone, preventing the accumulation of clumps. The second scraper continuously removes adhering material from the inner wall of the millstone, preventing the formation of clumps. The synergistic effect of these two scraper parts effectively overcomes the material adhesion problem described in the prior art. In addition, the insertion design of the vertical and horizontal arms allows for flexible disassembly of the second scraper.

[0008] As an improvement to the horizontal arm in this application, the horizontal arm is a cylindrical structure with an opening at its root. The annular ear plate on the back of the slot is connected to the opening at the root of the horizontal arm by bolts, and the annular ear plate is fixed to the back of the vertical arm by bolts.

[0009] Furthermore, the second scraper includes a straight scraper.

[0010] As an improvement to the second scraper in this application, the second scraper includes an arc-shaped scraper, and the end of the horizontal arm is provided with a mounting seat adapted to the arc-shaped scraper.

[0011] Furthermore, the second scraper is a flexible scraper and the back of the second scraper is provided with at least two hinge points and one support point; the mounting base includes a guide body with a wedge groove, a wedge block disposed in the wedge groove, a slider that cooperates with the inclined surfaces on both sides of the wedge block, and a drive rod connected to the first end face of the wedge block. A connecting rod is provided between the second end face of the wedge block and the support point, and a connecting rod is provided between the end face of the slider and the hinge point.

[0012] As an improvement to the scraping mechanism in this application, the scraping mechanism further includes an inclined arm connected to the side of the turntable and a third scraper installed at the bottom of the inclined arm.

[0013] As an improvement to the horizontal arm in this application, the spraying mechanism includes an infusion pipe and at least two spray branch pipes connected to the infusion pipe, wherein a plurality of nozzles are evenly distributed on the spray branch pipes.

[0014] The beneficial effects of this application are as follows:

[0015] The solution of this application incorporates a scraping mechanism connected to and rotating with the turntable. This scraping mechanism includes a first scraper that adheres to the bottom surface of the millstone and a second scraper that adheres to the inner wall of the millstone. The first scraper is installed at the bottom of a vertical arm, and the second scraper is installed at the end of a horizontal arm inserted into a slot in the vertical arm. This structure allows the scraping function to simultaneously act on two key areas: the bottom and the inner wall of the millstone. Furthermore, because the scraping mechanism rotates synchronously with the millstone and the turntable, it achieves continuous scraping of adhering material. The first scraper continuously scrapes away adhering material from the bottom surface of the millstone, preventing the accumulation of clumps at the bottom; the second scraper continuously scrapes away adhering material from the inner wall of the millstone, preventing the formation of clumps on the inner wall. The synergistic effect of these two scraper parts effectively overcomes the material adhesion problem described in the prior art. In addition, the insertion design of the vertical arm and the horizontal arm allows for flexible disassembly of the second scraper.

[0016] In addition to the technical problems solved by this utility model, the technical features constituting the technical solution, and the advantages brought about by the technical features of these technical solutions as described above, other technical problems that this utility model can solve, other technical features contained in the technical solution, and the advantages brought about by these technical features will be further explained in detail with reference to the accompanying drawings. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a grinding wheel device for silicon powder granulation in an embodiment of this application;

[0018] Figure 2 This is a partial structural schematic diagram of the scraping mechanism in the embodiments of this application;

[0019] Figure 3 This is a cross-sectional structural diagram of the mounting base in the embodiments of this application.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Base; 2. Grinding disc; 3. Spraying mechanism; 4. Drive mechanism; 5. Turntable; 6. Grinding wheel; 7. Scraping mechanism; 71. Vertical arm; 72. First scraper; 73. Grooving; 74. Horizontal arm; 75. Second scraper; 731. Annular ear plate; 76. Mounting base; 751. Hinge point; 752. Support point; 761. Guide body; 762. Wedge block; 763. Slider; 764. Drive rod; 765. Connecting rod; 77. Inclined arm; 78. Third scraper; 31. Infusion pipeline; 32. Spray branch pipe; 33. Nozzle. Detailed Implementation

[0022] The following will be combined with the appendix Figures 1-3The embodiments of the technical solution of this application are described in detail below. The following embodiments are only used to more clearly illustrate the technical solution of this application, and are therefore merely examples and should not be used to limit the scope of protection of this application. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0023] In view of the problems existing in the background technology or products, Figure 1 This invention provides a schematic diagram of a grinding wheel device for silicon powder granulation according to an embodiment of the present application. Figure 2 A partial structural schematic diagram of the scraping mechanism in an embodiment of this application is shown. Figure 3 A cross-sectional structural diagram of the mounting base in an embodiment of this application is shown. For example... Figures 1 to 3 As shown in the figure, this application provides a grinding wheel device for silicon powder granulation, including: a base 1, a grinding disc 2 disposed above the base 1, a spraying mechanism 3 disposed above the grinding disc 2, a drive mechanism 4 disposed on the central axis of the grinding disc 2, and a turntable 5 coaxially connected to the drive mechanism 4. The turntable 5 is connected to a grinding wheel 6 and a scraping mechanism 7. The scraping mechanism 7 includes a vertical arm 71 connected to the side of the turntable 5 and a first scraper 72 installed at the bottom of the vertical arm 71. The first scraper 72 is in contact with the bottom surface of the grinding disc 2. The surface of the vertical arm 71 is provided with a groove 73. The scraping mechanism 7 also includes a horizontal arm 74 inserted into the groove 73 and a second scraper 75 installed at the end of the horizontal arm 74. The second scraper 75 is in contact with the inner wall of the grinding disc 2.

[0024] Specifically, the spraying mechanism 3 is used to spray water onto the material in the grinding pan 2 to increase the humidity of the silicon carbide powder, facilitating granulation in subsequent granulation processes. Preferably, the spraying mechanism 3 includes a liquid delivery pipe 31 and at least two spray branch pipes 32 connected to the liquid delivery pipe 31. Multiple nozzles 33 are evenly distributed on the spray branch pipes 32 to ensure uniform granulation of the material in each area of ​​the grinding pan 2.

[0025] The drive mechanism 4 includes a motor mounted on the bottom of the grinding disc 2 and a vertical shaft connected to the motor. The vertical shaft is located at the central axis of the grinding disc 2. When the drive mechanism 4 is working, it drives the turntable 5 to rotate with the vertical shaft, thereby driving the grinding wheel 6 and the scraping mechanism 7 connected to it to rotate synchronously. The first scraper 72 mounted on the bottom of the vertical arm 71 is in contact with the bottom surface of the grinding disc 2. Its principle is that through the relative movement between the first scraper 72 and the bottom surface of the grinding disc 2 that rotates with the turntable 5, the blade of the first scraper 72 continuously scrapes off the material adhering to the bottom surface of the grinding disc 2, preventing the material from accumulating and agglomerating at the bottom. The scraping mechanism 7 also includes a horizontal arm 74 inserted into the slot 73. One end of the horizontal arm 74 is inserted into the slot 73 for support and positioning, while the other end extends towards the inner wall of the grinding disc 2, causing the second scraper 75 to fit against the inner wall of the grinding disc 2. Through the relative movement between the second scraper 75 and the inner wall of the grinding disc 2 that rotates with the turntable 5, the cutting edge of the second scraper 75 continuously scrapes away the material adhering to the inner wall of the grinding disc 2, preventing the material from forming clumps on the inner wall. This insertion design allows the horizontal arm 74 and the second scraper 75 at its end to be easily installed or removed, improving the flexibility of maintenance and replacement.

[0026] Continue reading Figure 2 In one implementation, the horizontal arm 74 is a cylindrical structure with an opening at its root. The annular ear plate 731 on the back of the slot 73 is connected to the opening at the root of the horizontal arm 74 by bolts, and the annular ear plate 731 is fixed to the back of the vertical arm 71 by bolts.

[0027] Specifically, this structure utilizes bolt connections to support the scraper 75. By adjusting the tightness of the bolts, the horizontal arm 74 and the second scraper 75 at its end can be positioned according to the shape of the slot 73. For example, a strip-shaped slot 73 allows the horizontal arm 74 to move up and down within the slot 73, thereby adjusting the height of the second scraper 75 against the inner wall and improving the adaptability of scraping. The cylindrical horizontal arm 74 can also rotate on the annular ear plate 731, thereby driving the second scraper 75 to rotate. When the second scraper 75 tilts downward at a certain angle, it can scrape downward along the inner wall of the grinding disc 2, thus preventing the escape of silicon powder during scraping and facilitating material collection, especially for open grinding disc devices.

[0028] Preferably, the second scraper 75 includes a straight scraper. When the second scraper 75 is configured as a straight scraper, its edge is arranged along the vertical direction of the inner wall, which can fit tightly against the inner wall of the grinding disc 2, effectively scraping off the adhering material, avoiding the formation of clumps, thereby improving the uniformity and efficiency of scraping.

[0029] Continue reading Figure 2 and 3In one implementation, the second scraper 75 includes an arc-shaped scraper, and the end of the horizontal arm 74 is provided with a mounting seat 76 adapted to the arc-shaped scraper.

[0030] Specifically, when the grinding disc 2 has a cylindrical structure, the arc-shaped scraper can better fit with the inner wall, avoiding the situation where the straight scraper may not fit with the inner wall when rotating. This allows for more effective scraping of silicon powder adhering to the inner wall, reducing silicon powder scattering, and improving granulation efficiency and environmental friendliness. The end of the horizontal arm 74 is provided with a mounting seat 76 adapted to the arc-shaped scraper. The mounting seat 76 can be a slot, threaded hole, or other connection structure, used to fix the arc-shaped scraper and ensure that the arc-shaped scraper maintains stable contact with the inner wall of the grinding disc 2 during rotation, thereby improving the scraping effect.

[0031] Preferably, the second scraper 75 is a flexible scraper and the back of the second scraper 75 is provided with at least two hinge points 751 and a support point 752; the mounting base 76 includes a guide body 761 with a wedge groove, a wedge block 762 disposed in the wedge groove, a slider 763 that cooperates with the inclined surfaces on both sides of the wedge block 762, and a drive rod 764 connected to the first end face of the wedge block 762. A connecting rod 765 is provided between the second end face of the wedge block 762 and the support point 752, and a connecting rod 765 is provided between the end face of the slider 763 and the hinge point 751.

[0032] Specifically, the guide body 761 has a wedge groove inside for accommodating and guiding the movement of the wedge block 762. A slider 763 disposed within the wedge groove can move in a direction perpendicular to the direction of movement of the wedge block under the push of the wedge block 762. A drive rod 764 is used to apply external force to drive the wedge block 762 to move linearly along the wedge groove. The second scraper 75 is a flexible structure, with a rigid support point 752 disposed on its back along the longitudinal centerline, and at least two movable hinge points 751 symmetrically arranged on both sides of the support point 752. When the drive rod 764 drives the wedge block 762 to move within the guide body 761, the inclined surface of the wedge block 762 decomposes the force and pushes the slider 763 to move laterally, thereby causing the connecting rod 765 between the slider 763 and the hinge point 751 to rotate around the hinge point 751, applying lateral tension to both ends of the second scraper 75. The support point 752 located in the middle of the second scraper 75 maintains axial constraint, causing the back of the second scraper 75 to undergo elastic bending deformation around the support point 752, forming an arc surface. This changes the curvature or shape of its contact with the inner wall of the grinding disc 2, thereby achieving good contact scraping of the inner wall of the grinding disc 2, improving the adaptability and efficiency of scraping, and effectively reducing material residue and agglomeration.

[0033] Continue reading Figure 2In one implementation, the scraping mechanism 7 further includes an inclined arm 77 connected to the side of the turntable 5 and a third scraper 78 installed at the bottom of the inclined arm 77.

[0034] Specifically, the tilting arm 77 extends downward and outward from the side of the turntable 5 at a specific tilt angle, allowing the third scraper 78, installed at its end, to act on a specific area of ​​the bottom plane of the grinding disc 2. Compared to the scraping range of the first scraper 71, the tilting arm 77 helps the third scraper 78 to redirect material from the edge area of ​​the grinding disc 2 back to the center area or active area of ​​the grinding disc, allowing it to be crushed by the grinding wheel 6. This improves the overall circulation efficiency and uniformity of the material within the grinding disc, ensuring the continuity and stability of the granulation process.

[0035] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "set", "equipped with", "connected", and "installed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0036] Finally, it should be noted that 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 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 utility model.

Claims

1. A milling wheel device for silicon powder granulation, characterized in that, include: The base (1), the grinding disc (2) disposed above the base (1), the spraying mechanism (3) disposed above the grinding disc (2), the driving mechanism (4) disposed on the central axis of the grinding disc (2), and the turntable (5) coaxially connected to the driving mechanism (4). The turntable (5) is connected to the grinding wheel (6) and the scraping mechanism (7). The scraping mechanism (7) includes a vertical arm (71) connected to the side of the turntable (5) and a first scraper (72) installed at the bottom of the vertical arm (71). The first scraper (72) is in contact with the bottom surface of the grinding disc (2). The surface of the vertical arm (71) is provided with a groove (73). The scraping mechanism (7) also includes a horizontal arm (74) inserted into the groove (73) and a second scraper (75) installed at the end of the horizontal arm (74). The second scraper (75) is in contact with the inner wall of the grinding disc (2).

2. The grinding wheel device for silicon powder granulation as described in claim 1, characterized in that, The horizontal arm (74) is a cylindrical structure with an opening at its root. The annular ear plate (731) on the back of the slot (73) is connected to the opening at the root of the horizontal arm (74) by bolts. The annular ear plate (731) is fixed to the back of the vertical arm (71) by bolts.

3. The grinding wheel device for silicon powder granulation as described in claim 2, characterized in that, The second scraper (75) includes a straight scraper.

4. The grinding wheel device for silicon powder granulation as described in claim 2, characterized in that, The second scraper (75) includes an arc scraper, and the end of the horizontal arm (74) is provided with a mounting seat (76) adapted to the arc scraper.

5. The grinding wheel device for silicon powder granulation as described in claim 4, characterized in that, The second scraper (75) is a flexible scraper and the back of the second scraper (75) is provided with at least two hinge points (751) and one support point (752); The mounting base (76) includes a guide body (761) with a wedge groove, a wedge block (762) disposed in the wedge groove, a slider (763) that cooperates with the inclined surfaces on both sides of the wedge block (762), and a drive rod (764) connected to the first end face of the wedge block (762). A connecting rod (765) is provided between the second end face of the wedge block (762) and the support point (752), and a connecting rod (765) is provided between the end face of the slider (763) and the hinge point (751).

6. The grinding wheel device for silicon powder granulation as described in claim 1, characterized in that, The scraping mechanism (7) further includes an inclined arm (77) connected to the side of the turntable (5) and a third scraper (78) installed at the bottom of the inclined arm (77).

7. The grinding wheel device for silicon powder granulation as described in claim 1, characterized in that, The spraying mechanism (3) includes an infusion pipe (31) and at least two spray branch pipes (32) connected to the infusion pipe (31), and a plurality of nozzles (33) are evenly distributed on the spray branch pipes (32).

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