High-temperature graphitization furnace with high temperature uniformity

Abstract

The utility model relates to a high-temperature graphitization furnace with high temperature uniformity, and relates to the technical field of graphitization furnaces. The high-temperature graphitization furnace with the high uniform temperature performance comprises a furnace body, a plurality of heating mechanisms are arranged in a cavity of the furnace body, and the heating mechanisms are located on the upper side and the lower side of the cavity in the furnace body and the two sides in the width direction of the heating mechanisms correspondingly. And the heating devices are all used for heating air in the cavity of the furnace body. The device has the following effects that the multiple heating mechanisms are arranged, so that the multiple heating mechanisms can be located on the upper side and the lower side in the furnace body cavity and the two sides in the width direction of the multiple heating mechanisms correspondingly, and therefore the multiple heating mechanisms can heat air around the furnace body cavity; therefore, the temperature uniformity of the heated air around the to-be-treated material in the furnace body is improved, the heating uniformity of the material is further improved, the quality of the heated material is guaranteed, and the treatment effect on the material is improved.

Description

Technical Field

[0001] The present application relates to the technical field of graphitization furnaces, and particularly to a high-temperature graphitization furnace with high temperature uniformity performance. Background Art

[0002] With the continuous development of the social economy and the increasing improvement of the scientific and technological level, the industry in our country is booming. As a device used for sintering and graphitizing carbon materials, purifying graphite powder, and performing high-temperature treatment on other materials that can be graphitized in a carbon environment, the high-temperature graphitization furnace plays an important role in the industry.

[0003] There is a high-temperature graphitization furnace in the prior art, which includes a furnace body. Both ends of the furnace body along its own length direction are provided with openings, and the two openings are communicated with each other to form an internal chamber of the furnace body. The bottom end in the furnace body chamber is used to place the material to be processed, and a heating mechanism is arranged on the top end of the furnace body, and the heating mechanism is used to heat the material to be processed. Opening and closing plates are arranged at the openings of the furnace body, and the opening and closing plates are used to block the corresponding openings. When in use, the opening and closing plates are opened, then the material to be processed is put into the chamber of the furnace body from the opening of the furnace body, and then the opening and closing plates are closed, and the heating mechanism is started. The heating mechanism heats the air in the furnace body, so that the heated high-temperature air heats the material in the furnace body through heat transfer.

[0004] In view of the above related technologies, since the heating mechanism in the prior art is only arranged on the top end of the furnace body, when the heating mechanism heats the air in the furnace body, the heating mechanism will first heat the air located above the furnace body, and the heated high-temperature air still stays at the top end of the chamber. This makes the temperature difference between the air located below the furnace body chamber and the air located above relatively large, resulting in poor uniformity of the air temperature in the furnace body, and further poor uniformity of the material being heated, reducing the processing effect on the material, so it needs to be improved. Utility Model Content

[0005] In order to improve the uniformity of the air temperature in the furnace body chamber, the present application provides a high-temperature graphitization furnace with high temperature uniformity performance.

[0006] The high-temperature graphitization furnace with high temperature uniformity performance provided by the present application adopts the following technical solutions:

[0007] A high-temperature graphitization furnace with high temperature uniformity performance includes a furnace body, and a heating mechanism is arranged in the chamber of the furnace body. The number of the heating mechanisms is set to be several, and the several heating mechanisms are respectively located on the upper and lower sides and both sides along the width direction of the inner chamber of the furnace body, and are all used to heat the air in the chamber of the furnace body.

[0008] By adopting the above technical solution, compared with the prior art where only a single heating mechanism is provided at the top of the inner cavity of the furnace, resulting in poor uniformity of the air temperature in the furnace body, in this application, the heating mechanism is set as several ones and is respectively arranged on the upper and lower sides and both sides along its own width direction in the furnace body cavity, so that the multiple heating mechanisms can heat the air around the furnace body cavity, thereby improving the temperature uniformity of the air around the material to be processed in the furnace body, further improving the heating uniformity of the material, ensuring the quality of the material after heat treatment, and improving the processing effect on the material.

[0009] Preferably, each of the heating mechanisms includes a mounting frame and several heating resistors. The mounting frames are all mounted on the side walls of the inner cavity of the furnace body, and the several heating resistors are distributed along the length direction of the mounting frame.

[0010] By adopting the above technical solution, for the specific setting of the heating mechanism, several heating resistors are provided in each heating mechanism and are distributed along the length direction of the mounting frame, so as to increase the heating efficiency and heating uniformity of the air in the furnace body, thereby improving the temperature uniformity of the air around the material to be processed in the furnace body, improving the heating uniformity of the material, ensuring the quality of the material after heat treatment, and improving the processing effect on the material.

[0011] Preferably, each of the mounting frames includes a connecting frame and several fixing frames. One end of each heating resistor is connected to the connecting frame, and each fixing frame is connected to the other ends of the several heating resistors, and each fixing frame is mounted on the furnace body.

[0012] By adopting the above technical solution, for the specific setting of the mounting frame, each fixing frame can be connected to the frame body arranged outside the furnace body, so that compared with setting a single connection point, the stability of the mounting frame can be increased, effectively ensuring the normal operation of the heating mechanism of this application; at the same time, compared with setting the fixing frame as a single long frame body, the setting of several fixing frames also effectively saves the materials required for connecting between the fixing frames and reduces the cost.

[0013] Preferably, each of the fixing frames includes a main body frame and an additional frame. Each heating resistor is connected to the corresponding main body frame. One end of the additional frame is connected to the corresponding main body frame, and the other end of the additional frame extends outside the furnace body and is used to be connected to the frame body arranged outside the furnace body.

[0014] By adopting the above technical solution, the specific setting of the fixing frame enables the additional frame on each fixing frame to extend out of the furnace body and be connected to the frame arranged outside the furnace body, thereby effectively ensuring the stability of the heating mechanism of the present application, ensuring the normal operation of the heating mechanism of the present application, and enabling the main body frame to extend out of the furnace body through the additional frame by only opening a hole with the same cross-sectional size as that of the additional frame, ensuring the heat preservation performance of the present application.

[0015] Preferably, a heat preservation layer is arranged on the side wall of one end of each additional frame away from the corresponding main body frame, and a heat preservation pad is arranged on one end of each additional frame extending out of the furnace body.

[0016] By adopting the above technical solution, the setting of the heat preservation layer and the heat preservation pad enables the heat preservation layer to replace the outer wall of the additional frame and contact the inner wall of the hole opened outside the furnace body, thereby insulating between the additional frame and the inner wall of the furnace body, effectively increasing the heat insulation effect of the present application, reducing the speed of the high-temperature gas in the furnace body flowing out of the furnace body, ensuring the temperature of the inner cavity of the furnace body, and further ensuring the processing efficiency and effect of the material.

[0017] Preferably, a hollow cavity is opened on the end wall of one end of the additional frame away from the corresponding main body frame, and the opening direction of the hollow cavity is the length direction of the additional frame.

[0018] By adopting the above technical solution, the setting of the hollow cavity can effectively reduce the heat transferred out after the additional frame is heated, thereby effectively increasing the heat insulation effect of the present application. At the same time, the setting of the hollow cavity opened along the length direction of the additional frame makes the inside of the additional frame hollow and vertically stressed, reducing the adverse impact of the hollow cavity on the strength of the additional frame and ensuring the mechanical properties and use effect of the additional frame.

[0019] Preferably, the additional frame is made of C / C composite material.

[0020] By adopting the above technical solution, the setting of the material of the additional frame enables the additional frame to have the advantages of low density, low thermal expansion coefficient, good high-temperature mechanical properties and high specific strength, effectively ensuring the use effect of the additional frame of the present application.

[0021] Preferably, a support mechanism is further arranged on the inner bottom wall of the furnace body. The top end of the support mechanism extends upward and is higher than the heating mechanism located on the inner bottom wall of the furnace body, and is used for supporting the material in the furnace body.

[0022] By adopting the above technical solution, the arrangement of the support mechanism enables the top end of the support mechanism to extend above the heating mechanism, so as to contact the materials in the furnace body cavity, support the materials in the furnace body, thereby reducing the adverse effects of the materials on the arrangement of the heating mechanism and ensuring the number of heating resistors arranged in the heating mechanism.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] With the arrangement of a plurality of heating mechanisms, the plurality of heating mechanisms can be respectively located on the upper and lower sides and the two sides along the width direction of the furnace body cavity, so that the plurality of heating mechanisms can heat the air around the furnace body cavity, thereby improving the temperature uniformity of the air around the material to be processed in the furnace body, further improving the heating uniformity of the material, ensuring the quality of the material after heat treatment, and improving the processing effect on the material;

[0025] With the specific arrangement of the heating mechanism, a plurality of heating resistors are arranged in each heating mechanism, and the plurality of heating resistors are distributed along the length direction of the mounting rack, so as to increase the heating efficiency and heating uniformity of the air in the furnace body, further improving the temperature uniformity of the air around the material to be processed in the furnace body, improving the heating uniformity of the material, ensuring the quality of the material after heat treatment, and improving the processing effect on the material;

[0026] With the arrangement of the heat insulation layer and the heat insulation pad on the additional rack, the heat insulation layer can replace the outer wall of the additional rack and contact the inner wall of the hole opened outside the furnace body, so as to insulate between the additional rack and the inner wall of the furnace body, effectively increasing the heat insulation effect of the present application, thereby reducing the speed of the high-temperature gas in the furnace body flowing out of the furnace body, ensuring the temperature of the inner cavity of the furnace body, and further ensuring the processing efficiency and effect on the material. Description of the Drawings

[0027] Figure 1 is a schematic diagram of the overall high-temperature graphitization furnace for embodying the high uniform temperature performance in the embodiment of the present application.

[0028] Figure 2 is a schematic diagram of the structure for embodying the support mechanism in the embodiment of the present application.

[0029] Figure 3 is a schematic diagram of the structure for embodying the heating mechanism in the embodiment of the present application.

[0030] Figure 4 is a schematic diagram of the structure for embodying the fixing rack in the embodiment of the present application.

[0031] Figure 5 is a schematic diagram of the structure for embodying the heat insulation pad in the embodiment of the present application.

[0032] Description of the reference numerals: 1. Furnace body; 2. Opening and closing plate; 3. Heating mechanism; 31. Mounting frame; 311. Connecting frame; 312. Fixing frame; 3121. Body frame; 3122. Additional frame; 32. Heating resistor; 4. Hollow cavity; 5. Heat insulation layer; 6. Heat insulation pad; 7. Support mechanism. Detailed implementation manners

[0033] The following further describes the present application in conjunction with the Figures 1-5 accompanying drawings in detail.

[0034] The embodiment of the present application discloses a high-temperature graphitization furnace with high temperature uniformity performance. Referring to Figure 1 、 Figure 2 and Figure 3 , the high-temperature graphitization furnace with high temperature uniformity performance includes a furnace body 1 and two opening and closing plates 2. Both ends of the furnace body 1 in its own length direction are provided with openings. The opening and closing plates 2 are respectively arranged at the opening positions on the furnace body 1 and are both used to block the openings. A heating mechanism 3 is arranged in the chamber of the furnace body 1. The number of the heating mechanisms 3 is set to be several. The several heating mechanisms 3 are respectively located on the upper and lower sides and both sides in the width direction of the inner chamber of the furnace body 1, and are all used to heat the air in the chamber of the furnace body 1.

[0035] Referring to Figure 3 and Figure 4 , in the embodiment of the present application, the number of the heating mechanisms 3 on each side is set to be two, and the two heating mechanisms 3 are distributed along the length direction of the furnace body 1. Each heating mechanism 3 includes a mounting frame 31 and several heating resistors 32. Each mounting frame 31 includes a connecting frame 311 and several fixing frames 312. In the embodiment of the present application, the number of the fixing frames 312 in each mounting frame 31 is set to be three.

[0036] Referring to Figure 3 and Figure 4 , the fixing frames 312 in the heating mechanisms 3 located on the upper and lower sides of the inner chamber of the furnace body 1 are equally spaced along the width direction of the furnace body 1. The fixing frames 312 in the heating mechanisms 3 located on both sides in the width direction of the inner chamber of the furnace body 1 are equally spaced along the length direction of the furnace body 1. Each fixing frame 312 includes a body frame 3121 and an additional frame 3122. Each body frame 3121 is fixedly sleeved on one end of the additional frame 3122, and the other end of each fixing frame 312 extends out of the furnace body 1.

[0037] Referring to Figure 3 and Figure 4 , the top end of each fixing frame 312 located on the upper side of the inner chamber of the furnace body 1 extends upward, passes through the top wall of the furnace body 1, and is fixedly connected to a frame body (not shown in the figure) arranged outside the furnace body 1. The above-mentioned frame body is arranged outside the furnace body 1.

[0038] Reference Figure 3 and Figure 4 , the bottom end of each fixing frame 312 located on the lower side of the inner cavity of the furnace body 1 extends downward, passes through the bottom wall of the furnace body 1, and is fixedly connected to the frame body arranged outside the furnace body 1. The top end of each fixing frame 312 located on both sides of the inner cavity of the furnace body 1 along the width direction of the furnace body 1 extends upward, passes through the top wall of the furnace body 1, and is fixedly connected to the frame body arranged outside the furnace body 1. A plurality of holes for the ends of the corresponding fixing frames 312 to pass through are formed in the top wall and the bottom wall of the furnace body 1.

[0039] Reference Figure 4 and Figure 5 , each additional frame 3122 is made of C / C composite material, so that the additional frame 3122 has the advantages of low density, low coefficient of thermal expansion, good high-temperature mechanical properties and high specific strength. A hollow cavity 4 is formed in the end wall of each additional frame 3122 away from the corresponding main body frame 3121 along the length direction of the additional frame 3122 to increase the heat insulation effect of the additional frame 3122.

[0040] Reference Figure 4 and Figure 5 , a heat insulation layer 5 is fixedly sleeved on the side wall of each additional frame 3122 away from the corresponding main body frame 3121. The inner wall of the heat insulation layer 5 is attached to the outer side wall of the additional frame 3122, and the outer wall of the heat insulation layer 5 is attached to the inner wall of the hole on the furnace body 1. A heat insulation pad 6 is fixedly connected to the end of each additional frame 3122 away from the corresponding main body frame 3121. In the embodiment of the present application, both the heat insulation layer 5 and the heat insulation pad 6 are made of high-temperature resistant heat insulation coating.

[0041] Reference Figure 3 and Figure 4 , in the embodiment of the present application, the number of heating resistors 32 on each main body frame 3121 is set to two, and the two heating resistors 32 are distributed along the length direction of the corresponding main body frame 3121. One end of each heating resistor 32 is fixedly installed on the corresponding main body frame 3121, and the other end of each heating resistor 32 is fixedly installed on the corresponding connecting frame 311.

[0042] Reference Figure 3 and Figure 4 , the heating resistors 32 in each heating mechanism 3 are independently and electrically connected to the control circuit on the furnace body 1, so as to control the heating resistors 32 in each heating mechanism 3, realize the setting of multiple temperature control points, ensure that each heating mechanism 3 operates according to the set temperature, and ensure the uniform heating of the air in the cavity of the furnace body 1.

[0043] Reference Figure 3 and Figure 4, in the embodiment of the present application, each connecting frame 311 located on the upper side inside the furnace body 1 is fixedly connected to the inner wall of the furnace body 1, thereby ensuring the stability of the upper connecting frame 311. Each connecting frame 311 located on the lower side inside the furnace body 1 is fixedly connected to the inner wall of the furnace body 1, thereby ensuring the stability of the lower connecting frame 311.

[0044] Refer to Figure 2 and Figure 3 , a support mechanism 7 is further provided on the inner bottom wall of the furnace body 1. The bottom end of the support mechanism 7 is fixedly installed on the furnace body 1. The top end of the support mechanism 7 extends upward and is higher than each heating mechanism 3 on the lower side, so as to contact the bottom end of the material and support the bottom end of the material.

[0045] The implementation principle of a high-temperature graphitization furnace with high temperature uniformity performance in the embodiment of the present application is as follows: in the present application, the heating mechanisms 3 are set to be several, and are respectively arranged on the upper and lower sides and both sides along its own width direction inside the cavity of the furnace body 1, so that the plurality of heating mechanisms 3 can heat the air around the cavity of the furnace body 1 uniformly, thereby improving the temperature uniformity of the air around the material to be processed inside the furnace body 1, further improving the heating uniformity of the material, ensuring the quality of the material after heat treatment, and improving the processing effect on the material.

[0046] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A high-temperature graphitization furnace with high temperature uniformity performance, comprising a furnace body (1), wherein a heating mechanism (3) is arranged in a chamber of the furnace body (1), characterized in that: The number of the heating mechanisms (3) is set to be several, and the several heating mechanisms (3) are respectively located on the upper and lower sides of the inner chamber of the furnace body (1) and on both sides along its own width direction, and are all used to heat the air in the chamber of the furnace body (1).

2. A high temperature graphitization furnace with high temperature uniformity performance according to claim 1, characterized in that: Each of the heating mechanisms (3) comprises a mounting frame (31) and a plurality of heating resistors (32); the mounting frame (31) is mounted on a side wall of an inner chamber of the furnace body (1); and the plurality of heating resistors (32) are distributed along the length direction of the mounting frame (31).

3. A high temperature graphitization furnace with high temperature uniformity performance according to claim 2, characterized in that: Each of the mounting frames (31) comprises a connecting frame (311) and a plurality of fixing frames (312); one end of each of the heating resistors (32) is connected to the connecting frame (311); each of the fixing frames (312) is connected to the other ends of the plurality of heating resistors (32); and each of the fixing frames (312) is mounted on the furnace body (1).

4. A high temperature graphitization furnace with high temperature uniformity performance according to claim 3, characterized in that: Each of the fixing frames (312) comprises a main frame (3121) and an additional frame (3122); each of the heating resistors (32) is connected to the corresponding main frame (3121); one end of the additional frame (3122) is connected to the corresponding main frame (3121); and the other end of the additional frame (3122) extends out of the furnace body (1) and is used to be connected to a frame arranged outside the furnace body (1).

5. A high temperature graphitization furnace with high temperature uniformity performance according to claim 4, characterized in that: A heat-insulating layer (5) is provided on the side wall of each of the additional frames (3122) at one end away from the corresponding main frame (3121), and a heat-insulating pad (6) is provided on the end of each of the additional frames (3122) extending outside the furnace body (1).

6. A high temperature graphitization furnace with high temperature uniformity performance according to claim 4, characterized in that: A hollow cavity (4) is provided on an end wall of the additional frame (3122) away from the corresponding main frame (3121), and the opening direction of the hollow cavity (4) is the length direction of the additional frame (3122).

7. A high temperature graphitization furnace with high temperature uniformity performance according to claim 4, characterized in that: The additional frame (3122) is configured to be made of C / C composite material.

8. The high temperature graphitization furnace with high temperature uniformity performance according to claim 1, characterized in that: A supporting mechanism (7) is also provided on the inner bottom wall of the furnace body (1); the top end of the supporting mechanism (7) extends upward and is higher than the heating mechanism (3) located on the inner bottom wall of the furnace body (1), and is used to support the material in the furnace body (1).

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