Polycrystalline silicon powder tool for microwave drying

Abstract

A polycrystalline silicon powder tool for microwave drying relates to the technical field of tools, and adopts the technical scheme that the polycrystalline silicon powder tool comprises a tray and a material frame, the tray comprises a loading plate and a support frame arranged on the loading plate, the loading plate is further provided with a sealing ring surrounding the support frame, and the support frame is provided with a ventilation port; the material frame is arranged at the top of the supporting frame, the top of the material frame is open, air outlet holes are formed in side plates and a bottom plate of the material frame, and the projection area of the material frame on the carrying plate is smaller than the area of the carrying plate. The air outlet holes are formed in the side plates and the bottom plate of the material frame, so that water vapor is accelerated to flow out during drying; the tray is used for supporting the material frame, receiving scattered powder and sealing an opening in the bottom of the microwave dryer, spaces facilitating water vapor outflow are formed around and at the bottom of the material frame, water vapor extraction is facilitated, and the drying efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling, in particular to a tooling for polysilicon powder material used for microwave drying. Background Art

[0002] Silicon powder, silicon slag (fine particles) and other powders will be produced during the crushing and transportation of polysilicon rods. Therefore, it is necessary to improve the existing production process and recycle the polysilicon powder to increase production. Since the water permeation process is used in the pre-process, the water content in the powder is high and it must be transported to the microwave dryer to reduce the water content. It is necessary to design a powder tooling suitable for microwave drying. Utility Model Content

[0003] In view of the problem that a powder material tooling suitable for microwave drying needs to be designed, the utility model provides a polysilicon powder material tooling suitable for microwave drying.

[0004] The utility model provides the following technical solution: a tooling for polysilicon powder drying by microwave, comprising:

[0005] A tray, the tray comprising a loading plate and a support frame arranged on the loading plate, the loading plate is further provided with a sealing ring surrounding the support frame, and the support frame is provided with a vent;

[0006] A material frame is placed on the top of the support frame, the top of the material frame is open, the side panels and the bottom panel of the material frame are both provided with air outlets, and the projection area of ​​the material frame on the carrier plate is smaller than the area of ​​the carrier plate.

[0007] Preferably, the tray further comprises a supporting frame arranged at the bottom of the loading plate, and a plurality of positioning columns are arranged at the bottom of the supporting frame.

[0008] Preferably, the support frame is further provided with reinforcing ribs.

[0009] Preferably, a plurality of buffer support columns are further provided at the bottom of the support frame, and the positioning column is provided at the center of the buffer support column.

[0010] Preferably, the support frame comprises a long plate and a plurality of short plates arranged on both sides of the long plate, and both the long plate and the short plate are provided with the ventilation opening.

[0011] Preferably, the short board is perpendicular to the long board.

[0012] Preferably, both the long plates and the short plates are provided with chamfers.

[0013] Preferably, a plurality of reserved interfaces are also provided at the bottom of the carrier plate.

[0014] Preferably, the bottom plate of the material frame is further provided with a flange, the flange and the bottom plate form a limiting groove, and the support frame is inserted into the limiting groove.

[0015] The beneficial effects of the utility model are as follows: the side plates and the bottom plate of the material frame are provided with air outlet holes, which accelerate the outflow of water vapor during drying; the tray is used to support the material frame, receive scattered powder materials, and close the bottom opening of the microwave dryer, and a space is formed around and at the bottom of the material frame to facilitate the outflow of water vapor, which is beneficial to the extraction of water vapor and improves the drying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of an embodiment of a powder tooling.

[0017] Figure 2 A three-dimensional diagram of an embodiment of a tray Figure I .

[0018] Figure 3 A three-dimensional diagram of an embodiment of a tray Figure II .

[0019] Figure 4 It is a cross-sectional view of an embodiment of a powder tooling.

[0020] Figure numerals: 10, tray; 11, loading plate; 12, support frame; 121, long board; 122, short board; 13, sealing ring; 14, air vent; 15, support frame; 151, reinforcing rib; 16, positioning column; 17, buffer support column; 18, reserved interface; 20, material frame; 21, air outlet; 22, flange. DETAILED DESCRIPTION

[0021] The following is a more detailed description of the implementation of the utility model in conjunction with the drawings and the figure marks, so that those skilled in the art can implement it after reading this specification. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0022] The utility model provides Figure 1-4 The polysilicon powder material tooling shown is used for microwave drying, and includes a tray 10 and a material frame 20 placed on the tray 10 .

[0023] The material frame 20 is used to load polysilicon powder. The top is open, and the side plate and the bottom plate are both provided with air outlets 21. When drying, the moisture in the powder is heated to form water vapor, which is separated from the powder through the air outlets 21. The microwave dryer is also provided with an exhaust fan to extract the water vapor to improve the drying efficiency. The bottom plate of the material frame 20 is also provided with a flange 22, and the flange 22 and the bottom plate form a limiting groove. The support frame 12 is inserted into the limiting groove to prevent the material frame from separating from the support frame 12 and tipping over during the transportation process.

[0024] The tray 10 is used to support the material frame 20 and receive the powder material scattered from the material frame 20; the material frame 20 is fed into the microwave dryer from the bottom opening of the microwave dryer, and the tray 10 is used to close the bottom opening of the microwave dryer during drying. Specifically, the tray 10 includes a support frame 15, a loading plate 11, and a support frame 12 which are arranged in sequence from bottom to top.

[0025] The support frame 15 is used to enhance the structural strength and increase the load, and includes a square frame structure and reinforcing ribs 151 arranged inside the square frame structure. A plurality of buffer support columns 17 are also arranged at the bottom of the support frame 15 to reduce the vibration of the pallet when it moves; a plurality of positioning columns 16 are also arranged at the bottom of the support frame 15, and the positioning column 16 can be arranged in the center of the buffer support column 17. The buffer support column 17 can be made of rubber products.

[0026] The projection area of ​​the material frame 20 on the loading plate 11 is smaller than the area of ​​the loading plate 11, so that during drying, a space is formed around the material frame 20 for water vapor to flow out, which is beneficial for the vacuum pump to extract the water vapor; the loading plate 11 is also provided with a sealing ring 13 surrounding the support frame 12. After the tray 10 closes the bottom opening of the microwave dryer, the sealing ring 13 can enhance the sealing performance of the microwave dryer.

[0027] The material frame 20 is placed on the top of the support frame 12. The support frame 12 is used to raise the material frame 20 so that the bottom of the material frame also forms a space that is convenient for water vapor to flow out, and reduces the number of blocked vents 21 on the bottom plate of the material frame. Specifically, the support frame 12 includes a long plate 121 and a plurality of short plates 122 arranged on both sides of the long plate 121. The short plates 122 are perpendicular to the long plates 121, so that the support frame 12 has sufficient strength and minimizes the contact area with the bottom plate of the material frame. The support frame 12 divides the bottom of the material frame 20 into multiple spaces. In order to enhance the flow of water vapor, the long plates 121 and the short plates 122 are both provided with air vents 14 to expand the connection area between each of the spaces and other adjacent spaces. Furthermore, the long plates 121 and the short plates 122 are both provided with chamfers, so that the long plates and the bottom plate form a structure that is wide at the bottom and narrow at the top, thereby enhancing stability.

[0028] Preferably, a plurality of reserved interfaces 18 are also provided at the bottom of the loading plate 11 to facilitate the connection of other forms of support columns.

[0029] The above are one or more embodiments of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A tooling for microwave drying of polysilicon powder, characterized in that: include: A tray, the tray comprising a loading plate and a support frame arranged on the loading plate, the loading plate is further provided with a sealing ring surrounding the support frame, and the support frame is provided with a vent; A material frame is placed on the top of the support frame, the top of the material frame is open, the side panels and the bottom panel of the material frame are both provided with air outlets, and the projection area of ​​the material frame on the carrier plate is smaller than the area of ​​the carrier plate.

2. The polysilicon powder tooling for microwave drying according to claim 1, characterized in that: The tray further comprises a supporting frame arranged at the bottom of the loading plate, and a plurality of positioning columns are arranged at the bottom of the supporting frame.

3. The polysilicon powder tooling for microwave drying according to claim 2, characterized in that: The support frame is also provided with reinforcing ribs.

4. The polysilicon powder tooling for microwave drying according to claim 2, characterized in that: A plurality of buffer support columns are also arranged at the bottom of the support frame, and the positioning column is arranged at the center of the buffer support column.

5. The polysilicon powder tooling for microwave drying according to claim 1, characterized in that: The support frame includes a long plate and a plurality of short plates arranged on both sides of the long plate, and the long plate and the short plates are both provided with the ventilation openings.

6. The polysilicon powder tooling for microwave drying according to claim 5, characterized in that: The short board is perpendicular to the long board.

7. The polysilicon powder tooling for microwave drying according to claim 5, characterized in that: The long plate and the short plate are both provided with chamfers.

8. The polysilicon powder tooling for microwave drying according to claim 1, characterized in that: A plurality of reserved interfaces are also arranged at the bottom of the carrier plate.

9. The polysilicon powder tooling for microwave drying according to claim 1, characterized in that: The bottom plate of the material frame is also provided with a flange, and the flange and the bottom plate form a limiting groove, and the support frame is inserted into the limiting groove.

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