Material taking and placing device of vertical graphitization furnace

Abstract

The utility model relates to the technical field of graphite furnaces, in particular to a material taking and placing device of a vertical graphitization furnace, which comprises a graphite boat and a handle, a graphite boat cover is arranged at the top of the graphite boat, and symmetrically distributed carbon-carbon bolts are arranged on two sides of the graphite boat. A plurality of sets of air holes which are evenly distributed in the circumferential direction and communicated with an inner cavity of the graphite boat are formed in the upper portion of the side wall of the graphite boat, the handle is connected with the carbon-carbon bolt in a hooking mode, and the surface of the handle is coated with an anti-oxidation ceramic coating. The continuous symmetrical bending structure of the handle provides better mechanical property and operation convenience, and the structural integrity can still be kept when the handle continuously works in a high-temperature environment; through the hooking connection design of the carbon-carbon bolt column and the handle, the graphite boat can be quickly assembled and disassembled; the design of the double reverse hooks forms mechanical locking, so that the graphite boat is prevented from falling off.

Description

Technical Field

[0001] This utility model relates to the field of graphite furnace technology, and in particular to a material handling device for a vertical graphitization furnace. Background Technology

[0002] Vertical graphitization furnaces are widely used in the high-temperature treatment of graphite materials, and their operating environment is characterized by high temperature and oxidizing atmosphere.

[0003] Chinese utility model patent CN217252815U discloses a graphite boat dish for an automatic feeding device. The graphite boat dish includes a graphite boat dish body, and an open-ended receiving cavity is formed on the side of the graphite boat dish body. After smelting, the operator can place it on automated equipment and rotate it so that the opening faces downwards for feeding.

[0004] The aforementioned device can only handle lumpy materials. For powdered materials, manual handling with a long-handled crucible is required, which poses a risk of burns in high-temperature environments and is inefficient. Normally, lumpy materials need to be removed using clamps, but traditional clamps are prone to deformation or failure at high temperatures, making stable clamping difficult. Summary of the Invention

[0005] To address the shortcomings of the aforementioned technologies, this utility model provides a material handling device for a vertical graphitization furnace, aiming to provide a manual material handling device that is efficient in operation, resistant to high temperatures, and easy to operate.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a material handling device for a vertical graphitization furnace, including a graphite boat and a handle. The top of the graphite boat is equipped with a graphite boat cover, and carbon-carbon bolts are symmetrically distributed on both sides of the graphite boat. Multiple sets of vent holes are evenly distributed circumferentially and connected to the inner cavity of the graphite boat on the upper side wall. The handle is hooked and connected to the carbon-carbon bolts, and the surface of the handle is coated with an anti-oxidation ceramic coating.

[0007] Preferably, the vent hole adopts a 30° upward angled opening design.

[0008] Preferably, the handle is a continuously symmetrically bent convex structure with a circular cross-section. The convex structure includes a first vertical segment, which is bent clockwise at 45° and extended to form a first inclined segment. The first inclined segment is bent counterclockwise at 45° and extended to form a second vertical segment. The second vertical segment is bent clockwise at 90° and extended to form a first horizontal segment. The first horizontal segment is bent clockwise at 90° and extended to form a third vertical segment. The third vertical segment is bent counterclockwise at 45° and extended to form a second inclined segment. The second inclined segment is bent clockwise at 45° and extended to form a fourth vertical segment. A first hook is provided at the end of the first vertical segment, and a second hook is provided at the end of the fourth vertical segment.

[0009] Preferably, the first hook and the second hook have opposite bending directions.

[0010] Preferably, the first vertical segment, the first inclined segment, the second vertical segment, the first horizontal segment, the third vertical segment, the second inclined segment, and the fourth vertical segment are all smoothly transitioned by bends.

[0011] Preferably, the inner bending radius of the bend is twice the diameter of the handle.

[0012] Preferably, the distance between the first vertical segment and the fourth vertical segment is R+5mm, where R is the outer diameter of the graphite boat.

[0013] Preferably, the distance between the second vertical segment and the third vertical segment is half the outer diameter of the graphite boat.

[0014] Preferably, the length of the third vertical segment is 1.5 times the length of the first horizontal segment.

[0015] Preferably, the outer sleeve of the first horizontal section is covered with an anti-slip and heat-insulating sleeve.

[0016] After adopting the above technical solution, the beneficial effects of this utility model are:

[0017] The continuous symmetrical bending structure of the handle provides better mechanical performance and ease of operation, and can maintain structural integrity even during continuous operation in high-temperature environments; the hook connection design between the carbon bolt post and the handle enables quick loading and unloading of the graphite boat; the double reverse hook design forms a mechanical lock to prevent the graphite boat from falling off. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the material handling device;

[0020] Figure 2 This is a cross-sectional view of a graphite boat.

[0021] Figure 3 This is the main view of the handle;

[0022] Figure 4 This is an isometric view of the handle.

[0023] Explanation of reference numerals in the attached drawings: 1-Graphite boat, 2-Graphite vessel lid, 3-Handle, 4-Ventilation hole, 5-Carbon bolt post, 6-First vertical section, 7-First inclined section, 8-Second vertical section, 9-First horizontal section, 10-Third vertical section, 11-Second inclined section, 12-Fourth vertical section, 13-First hook, 14-Second hook. Detailed Implementation

[0024] The features and exemplary embodiments of various aspects of this utility model will now be described in detail. To make the objectives, technical solutions, and advantages of this utility model clearer, the following description, in conjunction with the accompanying drawings and specific embodiments, will provide a further detailed description. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit it. Those skilled in the art will recognize that this utility model can be implemented without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of this utility model by illustrating examples of it.

[0025] The directional terms used in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this utility model. It should also be noted in the description of this utility model that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] like Figure 1 As shown, this embodiment provides a material handling device for a vertical graphitization furnace, including a graphite boat 1 and a handle 3. The material to be processed is placed in the graphite boat 1, and then the handle 3 is used to place the graphite boat 1 into the furnace chamber of the vertical graphitization furnace. The handle 3 is hooked to the graphite boat 1, enabling quick loading and unloading. The surface of the handle 3 is coated with an anti-oxidation ceramic coating to enhance high-temperature stability.

[0027] like Figure 2As shown, the graphite boat 1 is integrally formed from isostatically pressed high-purity graphite material, and a graphite boat cover 2 is mounted on top. Carbon-carbon bolt posts 5, symmetrically arranged on both sides of the graphite boat 1, serve as the connection points for the handle 3. Multiple sets of vent holes 4, evenly distributed circumferentially and connecting to the inner cavity, are provided on the upper side wall of the graphite boat 1. The vent holes 4 are angled upwards, with the central axis of the vent hole 4 forming an angle α of 30° with the horizontal plane. The angled vent holes 4 promote the formation of circulating convection of the sintering atmosphere within the inner cavity of the graphite boat 1, resulting in more uniform contact between the gas and material and reducing the temperature gradient.

[0028] like Figure 3 and Figure 4 As shown, the handle 3 is a continuously bent convex structure with a circular cross-section. The convex structure includes a first vertical segment 6, which is bent clockwise at 45° and extended to form a first inclined segment 7. The first inclined segment 7 is bent counterclockwise at 45° and extended to form a second vertical segment 8. The second vertical segment 8 is bent clockwise at 90° and extended to form a first horizontal segment 9. The first horizontal segment 9 is bent clockwise at 90° and extended to form a third vertical segment 10. The third vertical segment 10 is bent counterclockwise at 45° and extended to form a second inclined segment 11. The second inclined segment 11 is bent clockwise at 45° and extended to form a fourth vertical segment 12.

[0029] The convex structure maintains a safe distance between the handle's operating surface (first horizontal section 9) and the high-temperature zone, keeping the operating surface away from the high-temperature area of ​​the graphite boat 1 to avoid burns. The first horizontal section 9 is covered with a non-slip, heat-insulating sleeve to enhance grip stability and block heat transfer, protecting the operator's hands.

[0030] The first vertical segment 6 is the same length as the fourth vertical segment 12, the first inclined segment 7 is the same length as the second inclined segment 11, and the second vertical segment 8 is the same length as the third vertical segment 10. The length of the third vertical segment 10 is 1.5 times the length of the first horizontal segment 9, which causes the center of gravity of the handle 3 to shift towards the graphite boat 1, effectively preventing torque imbalance when picking up and putting down the graphite boat 1.

[0031] The first vertical segment 6, the first inclined segment 7, the second vertical segment 8, the first horizontal segment 9, the third vertical segment 10, the second inclined segment 11, and the fourth vertical segment 12 are all smoothly transitioned by bends. The inner bending radius of the bend is twice the diameter of the handle 3 to eliminate sharp angle stress sources and enhance fatigue resistance.

[0032] The distance between the first vertical segment 6 and the fourth vertical segment 12 is R+5mm, where R is the outer diameter of the graphite boat 1. A 5mm thermal expansion gap is reserved to prevent jamming at high temperatures. The distance between the first vertical segment 6 and the fourth vertical segment 12 is approximately the same as the outer diameter of the graphite boat 1, which helps improve the stability when picking up and placing the graphite boat 1 and effectively resists unexpected lateral forces during operation. The distance between the second vertical segment 8 and the third vertical segment 10 is half the outer diameter of the graphite boat 1, which can effectively suppress the deformation caused by lateral bending moment and make the stress distribution of the handle 3 more uniform.

[0033] The first vertical segment 6 is provided with a first hook 13 at its end, and the fourth vertical segment 12 is provided with a second hook 14 at its end. The hooks of the first hook 13 and the second hook 14 have opposite bending directions. The reference plane of the first hook 13 is parallel to the reference plane of the second hook 14 and perpendicular to the central axis of the first horizontal segment 9.

[0034] The operator moves handle 3 directly above the graphite boat 1, aligning the first hook 13 and the second hook 14 with the carbon-carbon bolt posts 5 on both sides. The operator then rotates the first horizontal section 9 horizontally around the central axis of the graphite boat 1, causing the first hook 13 and the second hook 14 to hook onto the corresponding carbon-carbon bolt posts 5. Lifting handle 3 allows the graphite boat 1 to be removed from the vertical graphitization furnace and transferred to the designated location. Reversing the rotation of the first horizontal section 9 disengages the first hook 13 and the second hook 14 from the carbon-carbon bolt posts 5, completing the material unloading operation.

[0035] The embodiments described above are not exhaustive, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the above description. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the invention, enabling those skilled in the art to effectively utilize the invention and its modifications. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the protection scope of the invention.

Claims

1. A material handling device for a vertical graphitization furnace, characterized in that: The invention includes a graphite boat (1) and a handle (3). The graphite boat (1) is equipped with a graphite lid (2) on the top. The graphite boat (1) has symmetrically distributed carbon bolt posts (5) on both sides. The graphite boat (1) has multiple sets of vent holes (4) evenly distributed along the circumference and connected to its inner cavity on the upper side wall. The handle (3) is hooked and connected to the carbon bolt posts (5). The surface of the handle (3) is coated with an anti-oxidation ceramic coating.

2. The material handling device for the vertical graphitization furnace according to claim 1, characterized in that: The ventilation hole (4) adopts a 30° upward angle oblique opening design.

3. The material handling device for the vertical graphitization furnace according to claim 1, characterized in that: The handle (3) is a convex structure with continuous symmetrical bending. The cross-section of the convex structure is circular. The convex structure includes a first vertical section (6). The first vertical section (6) bends clockwise by 45° and extends to form a first inclined section (7). The first inclined section (7) bends counterclockwise by 45° and extends to form a second vertical section (8). The second vertical section (8) bends clockwise by 90° and extends to form a first horizontal section (9). The first horizontal section (9) bends clockwise by 90° and extends to form a third vertical section (10). The third vertical section (10) bends counterclockwise by 45° and extends to form a second inclined section (11). The second inclined section (11) bends clockwise by 45° and extends to form a fourth vertical section (12). The first vertical section (6) is provided with a first hook (13) at its end. The fourth vertical section (12) is provided with a second hook (14) at its end.

4. The material handling device for the vertical graphitization furnace according to claim 3, characterized in that: The first hook (13) and the second hook (14) have opposite hook bending directions.

5. The material handling device for the vertical graphitization furnace according to claim 3, characterized in that: The first vertical segment (6), the first inclined segment (7), the second vertical segment (8), the first horizontal segment (9), the third vertical segment (10), the second inclined segment (11), and the fourth vertical segment (12) are all smoothly transitioned by bends.

6. The material handling device for the vertical graphitization furnace according to claim 5, characterized in that: The inner bending radius of the bend is twice the diameter of the handle (3).

7. The material handling device for the vertical graphitization furnace according to claim 3, characterized in that: The distance between the first vertical segment (6) and the fourth vertical segment (12) is R+5mm, where R is the outer diameter of the graphite boat dish (1).

8. The material handling device for the vertical graphitization furnace according to claim 3, characterized in that: The distance between the second vertical segment (8) and the third vertical segment (10) is half the outer diameter of the graphite boat dish (1).

9. The material handling device for the vertical graphitization furnace according to claim 3, characterized in that: The length of the third vertical segment (10) is 1.5 times the length of the first horizontal segment (9).

10. The material handling device for the vertical graphitization furnace according to claim 3, characterized in that: The first horizontal section (9) has an outer sleeve with anti-slip and heat insulation.

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