Graphite crucible with high thermal efficiency

Abstract

The utility model relates to the technical field of graphite crucibles, in particular to a graphite crucible with high thermal efficiency, which comprises a graphite crucible body, and the outer wall of the top of the graphite crucible body is fixedly connected with a support plate for supporting the graphite crucible body. A first groove used for improving the heat transfer efficiency of the graphite crucible body is formed in the outer wall of the graphite crucible body, a second groove used for improving the heat transfer efficiency of the graphite crucible body is formed in the graphite crucible body, and a third groove used for improving the heat transfer efficiency of the graphite crucible body is formed in the bottom of the graphite crucible body. Through the spiral first groove in the outer wall of the graphite crucible body, the vortex-shaped third groove in the bottom of the graphite crucible body and hot air entering the second groove from the second hole and being discharged from the first hole, the heating area of the graphite crucible body can be greatly increased, and then the heat transfer efficiency of the graphite crucible body can be greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of graphite crucibles, in particular to a graphite crucible with high thermal efficiency. Background Art

[0002] Graphite Crucibles are containers used for heating, melting, and sintering metals, ceramics, glass, and other materials. Made from high-purity graphite, they offer excellent high-temperature resistance, corrosion resistance, and thermal conductivity. During high-temperature operation, they exhibit a low coefficient of thermal expansion and a certain degree of strain resistance to rapid heating and cooling. They are also highly resistant to corrosion from acidic and alkaline solutions and possess excellent chemical stability. These excellent properties have led to their widespread use in the smelting of alloy tool steels and the smelting of nonferrous metals and their alloys in industries such as metallurgy, foundry, machinery, and chemicals, achieving excellent technical and economic benefits.

[0003] In the prior art, when heating a graphite crucible, the graphite crucible is generally placed inside a melting furnace using a tool, and the melting furnace is allowed to heat the outer wall and bottom of the graphite crucible simultaneously. When the metal material inside the graphite crucible is heated into liquid, the graphite crucible is taken out using a tool and the liquid is poured out. Although the heating treatment of the graphite crucible can be completed, the heat transfer efficiency of the existing graphite crucible is low, which leads to the problem of slow heating speed of the graphite crucible. Therefore, a graphite crucible with high thermal efficiency is now proposed. Utility Model Content

[0004] The purpose of the utility model is to solve the disadvantage of low heat transfer efficiency of graphite crucible in the prior art, which leads to slow heating speed of the graphite crucible, and to propose a graphite crucible with high thermal efficiency.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A graphite crucible with high thermal efficiency includes a graphite crucible body, a support plate for supporting the graphite crucible body being fixedly connected to the top outer wall of the graphite crucible body, a first groove for improving the heat transfer efficiency of the graphite crucible body being provided on the outer wall of the graphite crucible body, a second groove for improving the heat transfer efficiency of the graphite crucible body being provided inside the graphite crucible body, and a third groove for improving the heat transfer efficiency of the graphite crucible body being provided at the bottom of the graphite crucible body.

[0007] Preferably, the outer wall of the support plate is provided with a clamping groove for clamping the movable graphite crucible body, and the clamping groove is arranged in a circular ring shape.

[0008] Preferably, the bottom of the support plate is fixedly connected with limiting rods for preventing the graphite crucible body from shaking, and the limiting rods are equidistantly distributed around the circumference.

[0009] Preferably, the first groove is arranged in a spiral shape and is arranged on the outer wall of the graphite crucible body, the second groove is arranged in a spiral shape and is arranged inside the graphite crucible body, and the third groove is arranged in a vortex shape and is arranged at the bottom of the graphite crucible body.

[0010] Preferably, a first hole communicating with the interior of the third groove is formed on the top of the graphite crucible body, and a second hole communicating with the interior of the third groove is formed on the bottom of the graphite crucible body.

[0011] Preferably, a diversion nozzle for pouring out liquid is provided on the top of the support plate.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] When the device is in use, after the graphite crucible body is placed inside the melting furnace, it passes through the first spiral groove on the outer wall of the graphite crucible body, then passes through the third vortex-shaped groove at the bottom of the graphite crucible body, and then enters the interior of the second groove through the second hole through hot gas, and is discharged from the first hole. This can greatly increase the heating area of ​​the graphite crucible body, thereby greatly improving the heat transfer efficiency of the graphite crucible body. The high heat transfer efficiency of the graphite crucible body can increase the heating speed of the graphite crucible body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the external three-dimensional structure of a graphite crucible with high thermal efficiency proposed by the present invention;

[0015] Figure 2 This is a schematic diagram of the bottom three-dimensional structure of a graphite crucible with high thermal efficiency proposed by the present invention;

[0016] Figure 3 This is a schematic diagram of the internal three-dimensional structure of a graphite crucible with high thermal efficiency proposed by the utility model.

[0017] In the figure: 1. Graphite crucible body; 2. Support plate; 3. First slot; 4. Second slot; 5. Third slot; 6. Clamping slot; 7. Limit rod; 8. First hole; 9. Second hole; 10. Diversion nozzle. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0019] Reference Figure 1-Figure 3 A graphite crucible with high thermal efficiency includes a graphite crucible body 1, a support plate 2 for supporting the graphite crucible body 1 is fixedly connected to the top outer wall of the graphite crucible body 1, a first groove 3 for improving the heat transfer efficiency of the graphite crucible body 1 is opened on the outer wall of the graphite crucible body 1, a second groove 4 for improving the heat transfer efficiency of the graphite crucible body 1 is opened inside the graphite crucible body 1, and a third groove 5 for improving the heat transfer efficiency of the graphite crucible body 1 is provided at the bottom of the graphite crucible body 1.

[0020] Furthermore, a clamping groove 6 for clamping and moving the graphite crucible body 1 is provided on the outer wall of the support plate 2 , and the clamping groove 6 is arranged in a circular ring shape.

[0021] It should be noted that by providing the annular clamping groove 6, it is convenient for the staff to use pliers to clamp the graphite crucible body 1 through the clamping groove 6, which makes it convenient to place the graphite crucible body 1 into the interior of the smelting furnace, or to take the graphite crucible body 1 out of the interior of the smelting furnace, which is more convenient.

[0022] Furthermore, the bottom of the support plate 2 is fixedly connected with limiting rods 7 for preventing the graphite crucible body 1 from shaking, and the limiting rods 7 are equidistantly distributed around the circumference.

[0023] It should be noted that a limiting groove for inserting the limiting rod 7 is provided on the top of the smelting furnace, so that the limiting rod 7 can be inserted to prevent the graphite crucible body 1 from shaking.

[0024] Furthermore, the first groove 3 is arranged in a spiral shape, and the first groove 3 is arranged on the outer wall of the graphite crucible body 1, the second groove 4 is arranged in a spiral shape, and the second groove 4 is arranged inside the graphite crucible body 1, and the third groove 5 is arranged in a vortex shape, and the third groove 5 is arranged at the bottom of the graphite crucible body 1.

[0025] It should be noted that, through the cooperation between the first groove 3 , the second groove 4 and the third groove 5 , the heating area of ​​the graphite crucible body 1 can be greatly increased, thereby improving the heat transfer efficiency of the graphite crucible body 1 .

[0026] It should be noted that a first spiral heating ring is provided on the inner wall of the smelting furnace, and a second eddy current heating ring is provided on the inner bottom of the smelting furnace, which cooperate with each other to achieve a better heating effect.

[0027] It should be noted that the specific model and specifications of the smelting furnace need to be selected based on the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field and is not described here. The power supply and opening and closing control of the smelting furnace can be provided by external equipment.

[0028] Furthermore, a first hole 8 communicating with the interior of the third groove 5 is formed at the top of the graphite crucible body 1 , and a second hole 9 communicating with the interior of the third groove 5 is formed at the bottom of the graphite crucible body 1 .

[0029] It should be noted that due to the high temperature inside the smelting furnace, through the principle of thermal expansion and contraction, when the gas is heated, the average distance between its molecules will increase, causing the gas volume to expand and the density to decrease. On the contrary, when the gas is cooled, the average distance between its molecules will decrease, the gas volume will shrink, and the density will increase. Since the density of hot air is small and the density of cold air is large, according to the basic principles of fluid mechanics, the gas with low density will tend to flow towards the gas with high density to seek balance, so that the hot air inside the smelting furnace will be discharged upward from the second hole 9, the third groove 5 and the first hole 8, which can improve the heat transfer efficiency.

[0030] Furthermore, a diversion nozzle 10 for pouring out liquid is provided on the top of the support plate 2 .

[0031] It should be noted that the liquid inside the graphite crucible body 1 can be poured out through the guide nozzle 10, which is relatively convenient.

[0032] Working principle of this utility model:

[0033] After the graphite crucible body 1 is placed inside the smelting furnace, it passes through the first spiral groove 3 on the outer wall of the graphite crucible body 1, then passes through the third vortex-shaped groove 5 at the bottom of the graphite crucible body 1, and then enters the interior of the second groove 4 from the second hole 9 through the hot gas, and is discharged from the first hole 8. This can greatly increase the heating area of ​​the graphite crucible body 1, thereby greatly improving the heat transfer efficiency of the graphite crucible body 1. The high heat transfer efficiency of the graphite crucible body 1 can increase the heating speed of the graphite crucible body 1.

[0034] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and utility model concept of the present invention, should be covered by the protection scope of the present invention.

Claims

1. A graphite crucible with high thermal efficiency, comprising a graphite crucible body (1), characterized in that: The top outer wall of the graphite crucible body (1) is fixedly connected to a support plate (2) for supporting the graphite crucible body (1); the outer wall of the graphite crucible body (1) is provided with a first groove (3) for improving the heat transfer efficiency of the graphite crucible body (1); the interior of the graphite crucible body (1) is provided with a second groove (4) for improving the heat transfer efficiency of the graphite crucible body (1); and the bottom of the graphite crucible body (1) is provided with a third groove (5) for improving the heat transfer efficiency of the graphite crucible body (1).

2. The graphite crucible with high thermal efficiency according to claim 1, characterized in that: The outer wall of the support plate (2) is provided with a clamping groove (6) for facilitating clamping of the movable graphite crucible body (1); the clamping groove (6) is arranged in a circular ring shape.

3. The graphite crucible with high thermal efficiency according to claim 1, characterized in that: The bottom of the support plate (2) is fixedly connected with a limiting rod (7) for preventing the graphite crucible body (1) from shaking, and the limiting rods (7) are arranged at equal intervals around the circumference.

4. The graphite crucible with high thermal efficiency according to claim 1, characterized in that: The first groove (3) is arranged in a spiral shape, and the first groove (3) is arranged on the outer wall of the graphite crucible body (1); the second groove (4) is arranged in a spiral shape, and the second groove (4) is arranged inside the graphite crucible body (1); the third groove (5) is arranged in a vortex shape, and the third groove (5) is arranged at the bottom of the graphite crucible body (1).

5. The graphite crucible with high thermal efficiency according to claim 1, characterized in that: A first hole (8) communicating with the interior of the third groove (5) is provided at the top of the graphite crucible body (1), and a second hole (9) communicating with the interior of the third groove (5) is provided at the bottom of the graphite crucible body (1).

6. The graphite crucible with high thermal efficiency according to claim 1, characterized in that: A diversion nozzle (10) for pouring out liquid is provided on the top of the support plate (2).

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