Silicon powder refining and grading mechanism

Abstract

The utility model relates to a silicon powder refining and grading mechanism which comprises a base, a driving part fixedly installed in the base, a stirring part movably connected to the side face of the driving part, a flow guide part fixedly installed on the top of the base and a subdivision part fixedly installed in the base. The driving part comprises a driving motor fixedly installed on the inner bottom wall of the base, a transmission gear fixedly installed on the outer side of an output shaft of the driving motor and a driven gear disc in transmission connection to the outer side of the transmission gear. According to the silicon powder refining and grading mechanism, silicon powder raw materials are put into an annular cover through a feeding pipe and smoothly slide to the top of a base through the top surface of a conical cover, a driving motor is started, an output shaft of the driving motor drives a transmission gear to rotate, and then the transmission gear drives a driven gear disc to rotate; and the transmission wheel disc rotates to drive a fixing ring to rotate, so that a push rod is driven to continuously push a crushing ball to grind and crush raw materials.

Description

Technical Field

[0001] The utility model relates to the technical field of silicon powder refinement, in particular to a silicon powder refinement and grading mechanism. Background Art

[0002] The fine classification of silicon powder is an important part of the silicon powder processing process. It is mainly classified according to the particle size and performance indicators of silicon powder. According to the particle size of silicon powder, it can be divided into ordinary silicon powder and high-purity silicon powder. Ordinary silicon powder is mainly used in the construction, cement, rubber, paint, coating and other industries, while high-purity silicon powder is mainly used in silicone rubber, silicone oil, optical fiber, advanced ceramics and other industries.

[0003] Silicon powder can be divided into ordinary (ultrafine) silicon powder, electrical and electronic grade silicon powder, molten silicon powder and spherical silicon powder according to grade. According to application, silicon powder can be divided into silicon powder for paint coating, silicon powder for epoxy floor, silicon powder for rubber, silicon powder for sealant, silicon powder for electronic and electrical grade plastic packaging materials, silicon powder for ceramics, etc.

[0004] The usage scenarios and production requirements of different grades of silicon powder vary greatly. Therefore, considering different needs, it is necessary to refine and grade the silicon powder before application. The most common methods currently include high-temperature melt spraying, flame spheronization, plasma, high-temperature calcination, hydrothermal synthesis, gas phase, precipitation, sol-gel, etc. These methods require extremely high difficulty in operation and extremely high requirements for equipment. In addition, the operation steps are very cumbersome. Therefore, a silicon powder refinement and grading mechanism is proposed, which uses physical grinding combined with airflow to screen silicon powder of suitable size particles. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a silicon powder refining and grading mechanism, which has the advantages of simple operation and high reliability, and solves the problem that the traditional silicon powder refining and grading operation process is complicated and inefficient.

[0006] In order to achieve the above-mentioned purpose of simple operation and high reliability, the utility model provides the following technical solutions: a silicon powder refining and grading mechanism, comprising a base, a driving component fixedly installed inside the base, a stirring component movably connected to the side of the driving component, a guide component fixedly installed on the top of the base, and a subdivision component fixedly installed inside the base; the driving component comprises a driving motor fixedly installed on the inner bottom wall of the base, a transmission gear fixedly installed on the outside of the output shaft of the driving motor, a driven gear plate transmission-connected to the outside of the transmission gear, and a transmission wheel fixedly installed on the top of the driven gear plate.

[0007] Furthermore, the stirring component includes a fixed ring fixedly installed on the top of the transmission wheel, a plurality of push rods fixedly installed on the outside of the fixed ring, and a plurality of crushing balls of different sizes are arranged on the outside of the push rods.

[0008] Furthermore, the guide component includes an annular cover fixedly installed on the top of the base by a snap buckle, a feed pipe fixedly installed on the top of the annular cover, a conical cover arranged on the inner side of the feed pipe, and a cover plate fixedly installed on the top of the feed pipe by a thread.

[0009] Furthermore, the subdivision components include a plurality of support rods fixedly mounted on the inner bottom wall of the base, a blow hood fixedly mounted on the top of the support rods, a conical disk fixedly mounted on the top of the blow hood, and a discharge pipe fixedly mounted on the bottom of the conical disk.

[0010] Furthermore, an opening is provided at the top of the base, and the transmission wheel vertically passes through the opening and is rotatably connected to the top of the base.

[0011] Furthermore, a plurality of connecting rods are fixedly installed on the inner side of the feed pipe, and one side of the connecting rod is fixedly installed on the inner side wall of the conical cover.

[0012] Furthermore, the outer wall of the blowing hood is rotatably connected to the inner wall of the driving wheel, and a plurality of regular air outlets are provided on the side of the blowing hood located inside the annular hood.

[0013] Furthermore, an air inlet is provided at the bottom of the side of the blow hood, a fixed air inlet pipe is provided inside the air inlet, a through hole is provided on the side wall of the base, the air inlet pipe passes through the through hole horizontally and is fixedly installed with the base.

[0014] Furthermore, a through hole is provided at the bottom of the blowing hood, and the discharge pipe vertically passes through the through hole and is fixedly installed with the bottom of the blowing hood.

[0015] It should be noted that the connections between the various components inside the annular cover are additionally provided with sealing devices to prevent silicon powder from scattering to the connections between the various components and causing mechanical failures.

[0016] Compared with the prior art, the utility model provides a silicon powder refinement and classification mechanism, which has the following features:

[0017] Beneficial effects:

[0018] 1. The silicon powder refining and grading mechanism opens the cover plate to put the silicon powder raw material into the annular cover through the feed pipe. The raw material passes through the top surface of the conical cover and smoothly reaches the top of the threaded base. The drive motor is started, and the output shaft of the drive motor drives the rotation of the transmission gear, which in turn drives the rotation of the driven gear plate, thereby driving the transmission wheel plate at the top opening of the base to rotate. The rotation of the transmission wheel plate drives the rotation of the fixed ring and then drives the push rod to continuously push the crushing ball to grind the raw material.

[0019] 2. The silicon powder refining and grading mechanism connects the air inlet pipe to the air supply device, and the air supply device continuously pushes air from the air inlet pipe. The airflow passes through the air inlet pipe into the blowing hood and is ejected from the air outlet. The ejected air blows the ground silicon powder from the top of the base, and flies to the top of the conical disk through the arc-shaped side guide of the annular cover. Since there is no second air outlet inside the annular cover, the flowing airflow blows the smaller particles of silicon powder on the top of the conical disk into the discharge pipe, and smoothly leaves the device through the discharge pipe, thereby achieving silicon powder refining and grading by adjusting the air supply power of the air supply device, thereby solving the problem of complicated and inefficient operation process of wet silicon powder refining and grading. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional cross-sectional view of the structure of the utility model;

[0021] Figure 2 The utility model structure Figure 1 A magnified view of the structure in the middle;

[0022] Figure 3 It is a three-dimensional diagram of the structure of the utility model.

[0023] In the figure: 1. base; 2. driving component; 21. driving motor; 22. transmission gear; 23. driven gear plate; 24. transmission wheel; 3. stirring component; 31. fixing ring; 32. pushing rod; 33. crushing ball; 4. flow guide component; 41. annular cover; 42. feeding pipe; 43. conical cover; 44. cover plate; 45. connecting rod; 5. subdivision component; 51. supporting rod; 52. blowing hood; 53. conical plate; 54. discharge pipe; 55. air outlet; 56. air inlet; 57. air inlet pipe. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-3In this embodiment, a silicon powder refining and grading mechanism includes a base 1, a driving component 2 fixedly installed inside the base 1, a stirring component 3 movably connected to the side of the driving component 2, a guide component 4 fixedly installed on the top of the base 1, and a subdividing component 5 fixedly installed inside the base 1; the driving component 2 includes a driving motor 21 fixedly installed on the inner bottom wall of the base 1, a transmission gear 22 fixedly installed on the outside of the output shaft of the driving motor 21, a driven gear plate 23 transmission-connected to the outside of the transmission gear 22, and a transmission wheel plate 24 fixedly installed on the top of the driven gear plate 23.

[0026] In this embodiment, the stirring component 3 includes a fixed ring 31 fixedly installed on the top of the driving wheel 24, a plurality of push rods 32 fixedly installed on the outside of the fixed ring 31, and a plurality of crushing balls 33 of different sizes are arranged on the outside of the push rods 32.

[0027] A stirring device is provided to break up and grind the silicon powder in agglomerates, so as to facilitate the next step of grading and refinement.

[0028] In this embodiment, the guide component 4 includes an annular cover 41 fixedly installed on the top of the base 1 by a snap-fit, a feed pipe 42 fixedly installed on the top of the annular cover 41, a conical cover 43 arranged on the inner side of the feed pipe 42, and a cover plate 44 fixedly installed on the top of the feed pipe 42 by threads.

[0029] The flow path of silicon powder inside the device is determined by diversion, thus ensuring the reliability of the device.

[0030] It should be noted that the surface of the conical cover 43 is smooth and will not deposit silicon powder raw materials on the surface, thereby affecting the fine classification of silicon powder.

[0031] In this embodiment, the subdivision component 5 includes a plurality of support rods 51 fixedly mounted on the inner bottom wall of the base 1, a blow hood 52 fixedly mounted on the top of the support rods 51, a conical disk 53 fixedly mounted on the top of the blow hood 52, and a discharge pipe 54 fixedly mounted on the bottom of the conical disk 53.

[0032] The blow hood 52 is provided to blow up the dispersed silicon powder, so that silicon powder particles that meet the requirements can slide through the conical disk 53 and enter the discharge pipe 54 .

[0033] It should be noted that the surface diameter of the conical disk 53 is smaller than the bottom diameter of the conical cover 43 , thereby preventing the raw materials from falling directly onto the top of the conical disk 53 .

[0034] In this embodiment, an opening is formed at the top of the base 1 , and the driving wheel 24 vertically passes through the opening and is rotatably connected to the top of the base 1 .

[0035] The opening of the base 1 and the rotation of the transmission wheel 24 enable the transmission wheel 24 to drive the components on the top of the base 1 to rotate while the bottom structure can still remain stable.

[0036] It should be noted that a dustproof sealing component is provided at the top of the rotational connection portion between the driving wheel 24 and the base 1 to prevent silicon powder from affecting the efficiency of the device.

[0037] In this embodiment, a plurality of connecting rods 45 are fixedly mounted on the inner side of the feed pipe 42 , and one side of the connecting rod 45 is fixedly mounted to the inner side wall of the conical cover 43 .

[0038] In this embodiment, the outer wall of the blowing cover 52 is rotatably connected to the inner wall of the driving wheel 24 , and a plurality of regular air outlets 55 are provided on the side of the blowing cover 52 located inside the annular cover 41 .

[0039] It should be noted that the contact portion between the transmission wheel 24 and the blowing cover 52 is also provided with a dustproof sealing component to prevent silicon powder from affecting the normal operation of the device.

[0040] In this embodiment, an air inlet 56 is provided at the bottom of the side of the blow hood 52, and a fixed air inlet pipe 57 is provided inside the air inlet 56. A through hole is provided on the side wall of the base 1, and the air inlet pipe 57 passes through the through hole horizontally and is fixedly installed on the base 1.

[0041] By providing an air inlet pipe 57 to introduce air flow into the device, silicon powder of appropriate size is blown up to achieve fine classification. At the same time, silicon powder of different sizes can be classified by controlling the intensity of the air flow.

[0042] In this embodiment, a through hole is formed at the bottom of the blowing hood 52 , and the discharge pipe 54 vertically passes through the through hole and is fixedly mounted to the bottom of the blowing hood 52 .

[0043] The discharge pipe 54 is smoothly led out by setting the perforation. This structure can ensure the smooth operation of the device. At the same time, the discharge pipe 54 can also divert the incoming airflow, thereby ensuring that the silicon powder can be blown up smoothly.

[0044] The working principle of the above embodiment is:

[0045] By opening the cover plate 44, the silicon powder raw material is put into the annular cover 41 through the feed pipe 42, and the raw material smoothly slides to the top of the base 1 through the top surface of the conical cover 43, and the drive motor 21 is started. The output shaft of the drive motor 21 drives the rotation of the transmission gear 22, and the transmission gear 22 then drives the rotation of the driven gear plate 23, thereby driving the transmission wheel plate 24 to rotate at the top opening of the base 1, and the rotation of the transmission wheel plate 24 drives the rotation of the fixed ring 31 and then drives the push rod 32 to continuously push the crushing ball 33 to grind the raw material.

[0046] By connecting the air inlet pipe 57 to the air supply device, the air supply device continuously pushes air from the air inlet pipe 57, and the air flow enters the blowing hood 52 through the air inlet pipe 57, and is then ejected from the air outlet 55. The ejected air blows the ground silicon powder from the top of the base 1, and flies to the top of the conical disk 53 through the arc-shaped side guide of the annular cover 41. Since there is no second air outlet inside the annular cover 41, the flowing air flow blows the smaller particles of silicon powder on the top of the conical disk 53 into the discharge pipe 54, and smoothly leaves the device through the discharge pipe 54, thereby achieving the goal of blowing up silicon powder of different particles by adjusting the air supply power of the air supply device, thereby achieving the refinement and grading of the silicon powder.

[0047] The electrical components mentioned in the text are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device for control such as a computer, and the existing public power connection technology is not described in detail in the text.

[0048] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0049] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A silicon powder refining and grading mechanism, characterized in that: It comprises a base (1), a driving component (2) fixedly mounted inside the base (1), a stirring component (3) movably connected to the side of the driving component (2), a flow guide component (4) fixedly mounted on the top of the base (1), and a subdividing component (5) fixedly mounted inside the base (1); The driving component (2) comprises a driving motor (21) fixedly mounted on the inner bottom wall of the base (1), a transmission gear (22) fixedly mounted on the outer side of the output shaft of the driving motor (21), a driven gear plate (23) drivingly connected to the outer side of the transmission gear (22), and a driving wheel plate (24) fixedly mounted on the top of the driven gear plate (23).

2. A silicon powder refining and grading mechanism according to claim 1, characterized in that: The stirring component (3) comprises a fixing ring (31) fixedly mounted on the top of the driving wheel (24), a plurality of pushing rods (32) fixedly mounted on the outside of the fixing ring (31), and a plurality of crushing balls (33) of different sizes arranged on the outside of the pushing rods (32).

3. The silicon powder refining and grading mechanism according to claim 1, characterized in that: The flow guide component (4) comprises an annular cover (41) fixedly mounted on the top of the base (1) by means of a buckle, a feed pipe (42) fixedly mounted on the top of the annular cover (41), a conical cover (43) arranged on the inner side of the feed pipe (42), and a cover plate (44) fixedly mounted on the top of the feed pipe (42) by means of a thread.

4. The silicon powder refining and grading mechanism according to claim 1, characterized in that: The subdividing component (5) comprises a plurality of support rods (51) fixedly mounted on the inner bottom wall of the base (1), a blowing hood (52) fixedly mounted on the top of the support rods (51), a conical disk (53) fixedly mounted on the top of the blowing hood (52), and a discharge pipe (54) fixedly mounted on the bottom of the conical disk (53).

5. The silicon powder refining and grading mechanism according to claim 1, characterized in that: The top of the base (1) is provided with an opening, and the transmission wheel (24) vertically passes through the opening and is rotatably connected to the top of the base (1).

6. The silicon powder refining and grading mechanism according to claim 3, characterized in that: A plurality of connecting rods (45) are fixedly mounted on the inner side of the feed pipe (42), and one side of the connecting rod (45) is fixedly mounted on the inner side wall of the conical cover (43).

7. The silicon powder refining and grading mechanism according to claim 4, characterized in that: The outer wall of the blowing cover (52) is rotatably connected to the inner wall of the driving wheel (24), and a plurality of regular air outlets (55) are provided on the side of the blowing cover (52) located inside the annular cover (41).

8. The silicon powder refining and grading mechanism according to claim 4, characterized in that: An air inlet (56) is provided at the bottom of the side of the blowing hood (52), a fixed air inlet pipe (57) is provided inside the air inlet (56), a through hole is provided on the side wall of the base (1), and the air inlet pipe (57) passes through the through hole horizontally and is fixedly installed on the base (1).

9. The silicon powder refining and grading mechanism according to claim 4, characterized in that: The bottom of the blowing hood (52) is provided with a through hole, and the discharge pipe (54) vertically penetrates the through hole and is fixedly mounted on the bottom of the blowing hood (52).

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