Material containing tool

Abstract

The utility model discloses a material containing tool which is used for containing materials in a material oxidation process and comprises a tool body and a tool upper cover. At least part of the tool body is sunken downwards to form a first containing groove used for storing materials, and the first containing groove is provided with an opening formed upwards; the tool upper cover covers the opening, and at least part of the tool upper cover is sunken downwards to form a second containing groove used for storing materials. Through the arrangement, the containing amount of materials can be increased.

Description

Technical Field

[0001] The present application relates to the technical field of material holding fixtures, and in particular to a material holding fixture used in a material oxidation process. Background Art

[0002] Impurities can be removed from materials based on the principle of oxidation: oxygen reacts with impurities in the material, converting them into oxidized gases that are then separated from the material. This oxidation reaction can be carried out in an oxidation furnace, where compressed air is introduced into one end of the furnace and the gases produced by the oxidation reaction are discharged from the other end.

[0003] In the prior art, during the material oxidation process, the material is accumulated in the oxidation furnace. If the oxidation furnace is filled with too much material, the impurities inside the material cannot fully react with oxygen, so only a small amount of material can be placed in the oxidation furnace.

[0004] Therefore, it is necessary to design a material holding tool for holding materials in the oxidation process to increase the material holding capacity. Utility Model Content

[0005] In order to address the deficiencies of the prior art, the purpose of the present application is to provide a material holding tool for holding materials in an oxidation process, which can increase the material holding capacity.

[0006] To achieve the above objectives, this application adopts the following technical solutions:

[0007] The present application provides a material holding tool for holding materials in a material oxidation process, the material holding tool comprising: a tool body and a tool cover; the tool body is at least partially recessed downward to form a first holding slot for storing materials, the first holding slot having an upwardly disposed opening; the tool cover covers the opening, and the tool cover is at least partially recessed downward to form a second holding slot for storing materials.

[0008] As a preferred technical solution, the bottom surface of the first containing groove is a curved surface, the bottom surface of the tool body is a curved surface, and the axis of the bottom surface of the first containing groove coincides with the axis of the bottom surface of the tool body.

[0009] As a preferred technical solution, the tooling body includes: a first body and two second bodies, the first body is hollow semi-cylindrical, and the bottom surface of the first containing groove is the inner surface of the first body; the two second bodies are distributed on both sides of the first body along the axial direction of the first body, and the two second bodies are integrally formed with the first body or fixedly connected.

[0010] As a preferred technical solution, the height of the first body along the up-down direction of the material holding tooling is greater than the height of the two second bodies along the up-down direction of the material holding tooling, so that a first through hole is formed at both ends of the tooling body along the axial direction of the first body, and each first through hole is configured to be able to connect the first holding groove and the outside of the tooling body.

[0011] As a preferred technical solution, at least a portion of the bottom of the tooling upper cover is located above the second body and there is a gap between the bottom and the second body.

[0012] As a preferred technical solution, each of the two second bodies is provided with at least one second through hole, and each second through hole is configured to be able to communicate with the first containing groove and the outside of the tooling body.

[0013] As a preferred technical solution, the tooling cover at least partially extends downward to form two abutting portions, which are respectively located on both sides of the tooling cover perpendicular to the axial direction of the first body, and the tooling body is located between the two abutting portions.

[0014] As a preferred technical solution, the bottom surface of the second holding tank is a plane, and the second holding tank is configured to be able to hold crystalline materials.

[0015] As a preferred technical solution, the bottom surface of the second holding tank is a downwardly concave curved surface, and the second holding tank is configured to hold powdered materials.

[0016] As a preferred technical solution, the tool body and the tool cover are both made of quartz material.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] In the material holding fixture of the present application, the first holding slot and the second holding slot form a two-layer material holding structure, which increases the material holding capacity while ensuring that the material has sufficient contact area to react with oxygen. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the material holding tooling for this application;

[0020] Figure 2 This is the exploded view of the material holding fixture for this application;

[0021] Figure 3 This is a schematic diagram of the material holding tooling used in this application;

[0022] Figure 4 This is a schematic structural diagram of the second holding tank of the material holding tooling of this application, in which the bottom surface of the tank is flat;

[0023] Figure 5This is a schematic diagram of the use of the material holding tooling in the application scenario of this application;

[0024] Among them, 100, material holding tool; 2, oxidation furnace; 11, tool body; 111, first holding slot; 112, first body; 113, second body; 114, first through hole; 115, second through hole; 12, tool cover; 121, second holding slot; 122, abutment portion. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the specific implementation of the present application will be clearly and completely described below in conjunction with the drawings in the implementation of the present application.

[0026] like Figure 1 and Figure 2 As shown, the present application provides a material holding tool 100 for holding materials in a material oxidation process.

[0027] In order to clearly illustrate the technical solution of this application, the following is also defined: Figure 1 In this application, the length direction of the material holding tool 100 refers to the front, back, left, right, top and bottom. Figure 1 The front-to-back direction in the drawing refers to the width direction of the material handling fixture 100. Figure 1 The left and right directions in the figure refer to the height direction of the material holding fixture 100. Figure 1 The up and down directions in .

[0028] The material holding fixture 100 comprises a fixture body 11 and a fixture cover 12. The fixture body 11 is at least partially recessed to form a first material receiving slot 111, which has an upwardly facing opening. The fixture cover 12 covers the opening of the first material receiving slot 111 and is at least partially recessed to form a second material receiving slot 121. The material holding fixture 100 utilizes a separate structure comprising the fixture body 11 and the fixture cover 12, facilitating easy placement of materials in and out of the first material receiving slot 111.

[0029] like Figure 3 As shown, the material holding fixture 100 of the present application is placed in the oxidation furnace 2, and compressed air is introduced to perform an oxidation reaction with the material, so that excess impurities in the material can be removed through the oxidation reaction.

[0030] In the material holding fixture 100 of the present application, the first holding tank 111 and the second holding tank 121 form a two-layer material holding structure, which increases the material holding capacity while ensuring that the material has sufficient contact area to react with oxygen.

[0031] like Figure 2As shown, as an implementation method, the bottom surface of the first holding tank 111 is a curved surface, and the bottom surface of the tool body 11 is a curved surface. The axis of the bottom surface of the first holding tank 111 coincides with the axis of the bottom surface of the tool body 11. By setting the bottom surface of the first holding tank 111 as a curved surface, the material storage capacity of the first holding tank 111 is increased. Since the oxidation furnace 2 is a circular tubular shape and the inner wall surface of the oxidation furnace 2 is a curved surface, the bottom surface of the tool body 11 is set as a curved surface so that the bottom of the tool body 11 conforms to the inner wall surface of the oxidation furnace 2, ensuring the stability of the material holding tool 100 placed within the oxidation furnace 2. In addition, by setting the axis of the bottom surface of the first holding tank 111 to coincide with the axis of the bottom surface of the tool body 11, the space occupancy rate of the first holding tank 111 within the tool body 11 is increased, further increasing the material storage capacity of the first holding tank 111.

[0032] like Figure 2 As shown, as an implementation method, the tool body 11 includes: a first body 112 and two second bodies 113. The first body 112 is in a hollow semi-cylindrical shape, so that the bottom of the tool body 11 fits against the inner wall surface of the oxidation furnace 2 and provides a volume for holding materials. The bottom surface of the first holding tank 111 is the inner surface of the first body 112. The two second bodies 113 are distributed on both sides of the first body 112 along the axial direction of the first body 112, and the two second bodies 113 are integrally formed or fixedly connected to the first body 112. The tool body 11 is configured as a first body 112 and two second bodies 113 that are integrally formed or fixedly connected to facilitate the manufacture of the tool body 11.

[0033] The material holding fixture 100 includes at least one air inlet and at least one exhaust port. The air inlet is used for compressed air to enter the first holding tank 111 , and the exhaust port is used for gas generated by the reaction to be discharged from the first holding tank 111 .

[0034] In addition, since the oxidation furnace 2 is in a circular tubular shape, when air is ventilated into the oxidation furnace 2, the gas flow inside the oxidation furnace 2 is from front to back. Therefore, as a preferred implementation, the air inlet is provided at the front end of the material holding fixture 100, and the exhaust port is provided at the rear end of the material holding fixture 100.

[0035] like Figure 1 and Figure 2As shown, as an implementation, the height of the first body 112 along the vertical direction of the material holding fixture 100 is greater than the height of the two second bodies 113 along the vertical direction of the material holding fixture 100, so that the fixture body 11 is formed with a first through hole 114 at both ends of the first body 112 along the axial direction. Each first through hole 114 is configured to connect the first holding tank 111 and the outside of the fixture body 11. In this implementation, the air inlet includes the first through hole 114 at the front end of the fixture body 11, and the first through hole 114 at the front end of the fixture body 11 is used for compressed air to enter the first holding tank 111; the exhaust port includes the first through hole 114 at the rear end of the fixture body 11, and the first through hole 114 at the rear end of the fixture body 11 is used to discharge the gas generated by the reaction from the first holding tank 111. After the compressed air enters the first holding tank 111 from the first through hole 114 at the front end of the tooling body 11, the oxygen in the compressed air reacts with the surface of the material in the first holding tank 111 to remove excess impurities in the surface of the material in the first holding tank 111. The gas generated by the reaction is discharged from the first holding tank 111 through the first through hole 114 at the rear end of the tooling body 11.

[0036] Specifically, the bottom of the tooling cover 12 is at least partially located above the second body 113 and there is a gap between it and the second body 113, so that compressed air and gas generated by the reaction can enter and discharge the first containing tank 111 from the gap between the bottom of the tooling cover 12 and the second body 113.

[0037] More specifically, the tooling cover 12 at least partially extends downward to form two abutment portions 122. The two abutment portions 122 are located on either side of the tooling cover 12 along an axis perpendicular to the first body 112, with the tooling body 11 positioned between the two abutment portions 122. The two abutment portions 122 abut against the left and right outer walls of the first body 112, respectively. This constrains the left and right movement of the tooling cover 12 relative to the tooling body 11, ensuring the stability of the tooling cover 12 when the tooling is placed in the oxidation furnace 2, thereby preventing material in the second holding tank 121 from falling out.

[0038] like Figure 1 and Figure 2As shown, as another implementation, both second bodies 113 are provided with at least one second through-hole 115, each of which is configured to connect the first holding tank 111 with the exterior of the tooling body 11. In this implementation, the air inlet comprises the second through-hole 115 on the front second body 113, which allows compressed air to enter the first holding tank 111. The air outlet comprises the second through-hole 115 on the rear second body 113, which allows gases generated by the reaction to exit the first holding tank 111. After compressed air enters the first holding tank 111 through the second through-hole 115 on the front second body 113, the oxygen in the compressed air reacts with the material inside the first holding tank 111, removing excess impurities. The resulting gases are then discharged from the first holding tank 111 through the second through-hole 115 on the rear second body 113.

[0039] It should be noted that the material is a solid particulate matter, and there is internal friction and cohesion between the particles. Therefore, when the material is stored in the first holding tank 111 , the material will not leak out of the second through hole 115 in large quantities.

[0040] like Figure 4 As shown, as an implementation method, the bottom surface of the second holding tank 121 is a plane, and the second holding tank 121 is configured to be able to hold crystalline materials. The internal friction and cohesion between the particles of the crystalline material are small, and the friction between them and the bottom surface of the second holding tank 121 is also small. Therefore, the bottom surface of the second holding tank 121 is set to a plane to prevent the crystalline material from sliding or rolling relative to the bottom surface of the second holding tank 121, so that the crystalline material is evenly spread in the second holding tank 121, thereby increasing the contact area of the crystalline material in the second holding tank 121 for the reaction with oxygen. It should be noted that when the bottom surface of the second holding tank 121 is set to a plane, the second holding tank 121 can also be configured to be able to hold powdered materials.

[0041] like Figure 1 and Figure 2 As shown, as another implementation, the bottom surface of the second holding tank 121 is a downwardly concave curved surface, and the second holding tank 121 is configured to hold powdered materials. The bottom surface of the second holding tank 121 is set as a downwardly concave curved surface to increase the volume of the second holding tank 121 for storing materials.

[0042] As an implementation method, both the tool body 11 and the tool cover 12 are made of quartz. Quartz has the advantage of high temperature resistance: the temperature range of quartz is 1600°C-1700°C. The ambient temperature of the oxidation furnace 2 is approximately 900°C, so quartz can withstand the high temperatures of the material oxidation reaction. Furthermore, the quartz tool body 11 and tool cover 12 do not contaminate the material.

[0043] The present application also provides an application scenario of the above-mentioned material holding tool 100, where the above-mentioned material is silicon carbide (SiC) raw material containing impure carbon.

[0044] The SiC crystal growth process is divided into: high-purity SiC raw material synthesis, seed crystal development, crystal growth, cutting, grinding and polishing, cleaning and testing. The high-purity SiC raw material synthesis process is the foundation of SiC crystal growth. If the high-purity SiC raw material synthesis process is not properly controlled, the uniformity, particle size, and silicon-carbon ratio of the high-purity SiC raw material synthesis will directly affect the quality of the SiC crystal growth.

[0045] The high-purity SiC raw material synthesis process is divided into a raw material synthesis stage and a raw material oxidation stage.

[0046] The SiC raw material synthesis stage is as follows: carbon powder and silicon powder are loaded into a graphite crucible, which is then placed in a synthesis furnace and the SiC raw material is synthesized using the self-propagating method. The SiC raw material synthesis reaction equation is: Si + C = SiC, and the reaction temperature range is 2300°C-2400°C. Under high temperature heating, the carbon in the graphite crucible will overflow, and the overflowing carbon will combine with the silicon material, making the synthesized SiC raw material carbon-rich, resulting in excessive carbon content in the SiC raw material. Therefore, after the SiC raw material synthesis stage, it is necessary to go through the SiC raw material oxidation stage to oxidize and remove excess carbon in the SiC raw material, thereby improving the purity of the SiC in the SiC raw material.

[0047] During the SiC raw material oxidation stage, compressed air is introduced into oxidation furnace 2 to initiate an oxidation reaction, removing excess carbon from the SiC raw material. The SiC raw material oxidation reaction equation is: C + O2 = CO2, and the reaction temperature is approximately 900°C. Placing the synthesized SiC raw material in the aforementioned material container 100 for oxidation increases the SiC raw material capacity within oxidation furnace 2.

[0048] like Figure 1 、 Figure 2 and Figure 5As shown, in this application scenario, multiple material holding fixtures 100 are placed in the oxidation furnace 2, and the multiple material holding fixtures 100 are arranged in the axial direction of the oxidation furnace 2. Compressed air is introduced into the oxidation furnace 2 from the front end of the oxidation furnace 2. The compressed air enters the first holding tank 111 through the first through hole 114 and the second through hole 115 at the front end of each material holding fixture 100, and reacts with the impurity carbon in the SiC raw material in the first holding tank 111. The carbon dioxide gas generated by the reaction is discharged from the first through hole 114 and the second through hole 115 at the rear end of each material holding fixture 100. At the same time, the compressed air reacts with the impurity carbon in the SiC raw material in the second holding tank 121. The carbon dioxide gas generated by the reaction is finally discharged from the oxidation furnace 2 from the rear end of the oxidation furnace 2.

[0049] It should be noted that the words "first", "second" and similar terms used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "an" do not indicate a quantity limitation, but rather indicate the presence of at least one. "Multiple" or "several" means at least two. Unless otherwise specified, words such as "front", "back", "left", "right", "bottom" and / or "top" are used for ease of description only and are not limited to one position or one spatial orientation. Words such as "include" or "comprising" and similar terms mean that the elements or objects appearing before "include" or "comprising" include the elements or objects listed after "include" or "comprising" and their equivalents, and do not exclude other elements or objects. Words such as "connected" or "connected" and similar terms are not limited to physical or mechanical connections, and may include electrical connections, whether direct or indirect.

[0050] As used in this specification and the appended claims, the singular forms "a," "an," "said," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0051] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the claims appended to this application.

Claims

1. A material holding tool (100) for holding materials in a material oxidation process, characterized in that: The material holding tool (100) comprises: A tool body (11), wherein the tool body (11) is at least partially recessed downward to form a first containing groove (111) for storing materials, and the first containing groove (111) has an opening arranged upward; A tooling cover (12) covers the opening, and the tooling cover (12) is at least partially recessed downward to form a second storage tank (121) for storing materials.

2. The material holding fixture (100) according to claim 1, characterized in that: The bottom surface of the first containing groove (111) is a curved surface, the bottom surface of the tool body (11) is a curved surface, and the axis of the bottom surface of the first containing groove (111) coincides with the axis of the bottom surface of the tool body (11).

3. The material holding fixture (100) according to claim 1, characterized in that: The tool body (11) comprises: A first body (112), wherein the first body (112) is in a hollow semi-cylindrical shape, and the bottom surface of the first containing groove (111) is the inner surface of the first body (112); Two second bodies (113), the two second bodies (113) are distributed on both sides of the first body (112) along the axial direction of the first body (112), and the two second bodies (113) are integrally formed with or fixedly connected to the first body (112).

4. The material holding fixture (100) according to claim 3, characterized in that: The height of the first body (112) along the vertical direction of the material holding tool (100) is greater than the height of the two second bodies (113) along the vertical direction of the material holding tool (100), so that the tool body (11) is formed with first through holes (114) at both ends of the axial direction of the first body (112), and each of the first through holes (114) is configured to be able to connect the first holding groove (111) and the outside of the tool body (11).

5. The material holding fixture (100) according to claim 4, characterized in that: The bottom of the tooling upper cover (12) is at least partially located above the second body (113) and is spaced apart from the second body (113).

6. The material holding fixture (100) according to claim 3, characterized in that: The two second bodies (113) are each provided with at least one second through hole (115), and each second through hole (115) is configured to be able to communicate with the first containing groove (111) and the outside of the tooling body (11).

7. The material holding fixture (100) according to claim 3, characterized in that: The tooling upper cover (12) at least partially extends downward to form two abutment portions (122), the two abutment portions (122) being respectively located on two sides of the tooling upper cover (12) along an axial direction perpendicular to the first body (112), and the tooling body (11) being located between the two abutment portions (122).

8. The material holding fixture (100) according to any one of claims 1 to 7, characterized in that: The bottom surface of the second holding tank (121) is a plane, and the second holding tank (121) is configured to be able to hold crystalline materials.

9. The material holding fixture (100) according to any one of claims 1 to 7, characterized in that: The bottom surface of the second containing groove (121) is a concave curved surface that is concave downwards, and the second containing groove (121) is configured to be able to contain powdered materials.

10. The material holding fixture (100) according to any one of claims 1 to 7, characterized in that: The tool body (11) and the tool cover (12) are both made of quartz material.

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