Openable and closable graphite felt heat preservation screen device of horizontal graphitization furnace

Abstract

The utility model discloses an openable graphite felt heat preservation screen device of a horizontal graphitization furnace, which belongs to the technical field of mechanical equipment and comprises a furnace cover, the furnace cover comprises an outer end face and an inner end face, a graphite felt heat preservation screen is positioned on the inner end face, and a plurality of supporting guide rails are mounted on the inner end face and surround the graphite felt heat preservation screen. The side wall of the graphite felt heat-preservation screen is slidably connected with the supporting guide rail; the telescopic end of the driving cylinder is connected with the end, facing the inner end face, of the graphite felt heat preservation screen. Therefore, under the action of the driving air cylinder, the graphite felt heat preservation screen can stably move along the supporting guide rail until the graphite felt heat preservation screen is tightly attached to the inner cavity of the graphitization furnace, the sealing performance of the interior of the graphitization furnace is guaranteed, the pressure in the graphitization furnace is uniform, and the local run-out problem is reduced.

Description

Technical Field

[0001] This utility model applies to the field of mechanical equipment technology and provides an openable and closable graphite felt insulation screen device for a horizontal graphitization furnace. Background Technology

[0002] A horizontal graphitization furnace is a type of equipment used for high-temperature graphitization processes and is widely used in the fields of materials science and industrial production.

[0003] Traditional graphite furnaces typically use fixed graphite felt insulation screens, requiring manual disassembly for maintenance and posing a risk of high-temperature operation. To address this, some graphite felt insulation screens employ movable hinge structures. However, this design is prone to deformation after high-temperature expansion, leading to incomplete closure and difficulty in ensuring uniform internal pressure, potentially causing localized fire leakage. Utility Model Content

[0004] In view of the above-mentioned defects, the purpose of this utility model is to provide an openable and closable graphite felt insulation screen device for a horizontal graphitization furnace, in order to solve the problems mentioned in the background.

[0005] A horizontal graphitization furnace with an openable graphite felt insulation screen device includes a furnace cover, the furnace cover having an outer end face and an inner end face, the graphite felt insulation screen being located on the inner end face, the inner end face being equipped with a plurality of supporting guide rails, the plurality of supporting guide rails being arranged around the graphite felt insulation screen, the sidewall of the graphite felt insulation screen being slidably connected to the supporting guide rails; a driving cylinder is installed on the outer end face, the extension and retraction end of the driving cylinder being connected to the end of the graphite felt insulation screen facing the inner end face.

[0006] A support frame is provided between the graphite felt insulation screen and the inner end face. The graphite felt insulation screen is connected to the end of the support frame away from the inner end face. The telescopic end of the drive cylinder is connected to the end of the support frame facing the inner end face. A support plate is provided on the side wall of the support frame. The support plate is slidably connected to the support guide rail.

[0007] The support plate is equipped with a limiting roller, which is matched with the support guide rail.

[0008] The supporting guide rail includes an upper guide rail and a lower guide rail arranged opposite to each other. The distance between the two upper guide rails is L1, and the distance between the two lower guide rails is L2, where 0.7 ≤ L1 / L2 ≤ 1.3.

[0009] The graphite felt insulation screen comprises several layers, which are arranged in a gradient.

[0010] A temperature measuring tube is provided at the end of the graphite felt insulation screen away from the inner end face.

[0011] The graphite felt insulation screen has several vent pipes at the end away from the inner end face, and the vent pipes are arranged around the temperature measuring tube.

[0012] Beneficial effects

[0013] Driven by the cylinder, the graphite felt insulation screen moves smoothly along the support guide rail until it is tightly fitted into the inner cavity of the graphitization furnace. This ensures the furnace's internal sealing, resulting in more uniform internal pressure and reducing the occurrence of localized fire hazards. Furthermore, the automatic opening and closing mechanism facilitates maintenance work for operators. Attached Figure Description

[0014] Figure 1 A three-dimensional view of a horizontal graphitization furnace;

[0015] Figure 2 A three-dimensional view of the graphite felt insulation screen device;

[0016] Figure 3 This is a structural diagram of a graphite felt insulation screen device.

[0017] Figure 4 This is a front view of the graphite felt insulation screen device.

[0018] In the diagram: 1-furnace cover, 11-inner end face, 12-outer end face, 2-graphite felt insulation screen, 21-support guide rail, 22-drive cylinder, 23-support frame, 24-support plate, 25-limiting roller, 26-temperature measuring tube, 27-vent pipe, 28-upper track, 29-lower track, 3-graphitization furnace. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0020] Example:

[0021] like Figures 1-4As shown, a horizontal graphitization furnace 3 with an openable and closable graphite felt insulation screen 2 includes a furnace cover 1, which has an outer end face 12 and an inner end face 11. The graphite felt insulation screen 2 is located on the inner end face 11. A plurality of supporting guide rails 21 are installed on the inner end face 11, and these rails surround the graphite felt insulation screen 2. The sidewall of the graphite felt insulation screen 2 is slidably connected to the supporting guide rails 21. A driving cylinder 22 is installed on the outer end face 12, and the telescopic end of the driving cylinder 22 is connected to one end of the graphite felt insulation screen 2 facing the inner end face 11. One end of the furnace cover 1 is hinged to the furnace body, which facilitates the opening and closing of the furnace cover 1. When in use, the furnace cover 1 is closed. At this time, the graphite felt insulation screen 2 is positioned opposite to the inner cavity of the graphitization furnace 3. The drive cylinder 22 is turned on, and the drive cylinder 22 will push the graphite felt insulation screen 2 to move along the support guide rail 21 toward the inner cavity until the graphite felt insulation screen 2 is tightly fastened to the inner cavity.

[0022] After shutdown, simply start the drive cylinder 22 to reset it, and then open the furnace cover 1.

[0023] In the above design, under the action of the drive cylinder 22, the graphite felt insulation screen 2 moves smoothly along the support guide rail 21 until it is tightly fitted with the inner cavity of the graphitization furnace 3. This ensures the sealing of the graphitization furnace 3, making the internal pressure of the furnace 3 more uniform and reducing the occurrence of localized fire problems. At the same time, the automatic opening and closing also facilitates the maintenance work of the operators.

[0024] To facilitate the fixing of the graphite felt insulation screen 2, a support frame 23 is provided between the graphite felt insulation screen 2 and the inner end face 11. The graphite felt insulation screen 2 is connected to the end of the support frame 23 away from the inner end face 11. The telescopic end of the drive cylinder 22 is connected to the end of the support frame 23 facing the inner end face 11. A support plate 24 is provided on the side wall of the support frame 23. The support plate 24 is slidably connected to the support guide rail 21.

[0025] In order to reduce the resistance of the graphite felt insulation screen 2 during movement and reduce noise generation, a limiting roller 25 is installed on the support plate 24, and the limiting roller 25 is matched with the support guide rail 21.

[0026] To facilitate real-time monitoring of the internal temperature of the graphitization furnace 3, a temperature measuring tube 26 is provided at the end of the graphite felt insulation screen 2 away from the inner end face 11.

[0027] To facilitate the injection of the required gas into the inner cavity of the graphitization furnace 3, a plurality of vent pipes 27 are provided at the end of the graphite felt insulation screen 2 away from the inner end face 11, and the plurality of vent pipes 27 are arranged around the temperature measuring tube 26. In use, the external gas injection pipe is connected to the vent pipes 27 to facilitate the exchange of gases inside and outside the graphitization furnace 3.

[0028] To ensure a tight fit between the graphite felt insulation screen 2 and the inner cavity of the graphitization furnace 3, the graphite felt insulation screen 2 comprises several layers arranged in a gradient. In this design, the graphite felt insulation screen 2 comprises several layers with areas decreasing in a gradient, with the end facing the inner cavity having the smallest area, its size slightly smaller than the inner cavity diameter, thus ensuring that the graphite felt insulation screen 2 can partially extend into the inner cavity.

[0029] Preferably, the support rail 21 includes upper guide rails and lower guide rails arranged opposite each other, with a distance of L1 between the two upper guide rails and a distance of L2 between the two lower guide rails, where 0.7 ≤ L1 / L2 ≤ 1.3. The purpose of this design is to ensure the parallelism of the support rails, thereby ensuring that the graphite felt insulation screen 2 can move smoothly.

[0030] In summary, the advantages of this solution are as follows: Under the action of the drive cylinder 22, the graphite felt insulation screen 2 will move smoothly along the support guide rail 21 until it is tightly fitted with the inner cavity of the graphitization furnace 3. This ensures the sealing of the graphitization furnace 3, resulting in more uniform internal pressure and reducing the occurrence of localized arcing. Furthermore, the automatic opening and closing operation facilitates maintenance work for operators.

[0031] There are many other embodiments. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims.

Claims

1. A horizontal graphitization furnace with an openable graphite felt insulation screen device, comprising a furnace cover (1), the furnace cover (1) comprising an outer end face (12) and an inner end face (11), the graphite felt insulation screen (2) being located on the inner end face (11), characterized in that, The inner end face (11) is equipped with a plurality of support guide rails (21), which are arranged around the graphite felt insulation screen (2). The side wall of the graphite felt insulation screen (2) is slidably connected to the support guide rails (21). The outer end face (12) is equipped with a drive cylinder (22), and the extension end of the drive cylinder (22) is connected to one end of the graphite felt insulation screen (2) facing the inner end face (11).

2. The openable and closable graphite felt insulation screen device for a horizontal graphitization furnace according to claim 1, characterized in that, A support frame (23) is provided between the graphite felt insulation screen (2) and the inner end face (11). The graphite felt insulation screen (2) is connected to the end of the support frame (23) away from the inner end face (11). The telescopic end of the driving cylinder (22) is connected to the end of the support frame (23) facing the inner end face (11). A support plate (24) is provided on the side wall of the support frame (23). The support plate (24) is slidably connected to the support guide rail (21).

3. The openable and closable graphite felt insulation screen device for a horizontal graphitization furnace according to claim 2, characterized in that, The support plate (24) is equipped with a limiting roller (25), which is matched with the support guide rail (21).

4. The openable and closable graphite felt insulation screen device for a horizontal graphitization furnace according to claim 1, characterized in that, The support rail (21) includes an upper rail and a lower rail arranged opposite to each other. The distance between the two upper rails is L1, and the distance between the two lower rails is L2. 0.7≤L1 / L2≤1.

3.

5. The openable and closable graphite felt insulation screen device for a horizontal graphitization furnace according to claim 1, characterized in that, The graphite felt insulation screen (2) comprises several layers, and the several layers of the graphite felt insulation screen (2) are arranged in a gradient.

6. The openable and closable graphite felt insulation screen device for a horizontal graphitization furnace according to claim 1, characterized in that, A temperature measuring tube (26) is provided at the end of the graphite felt insulation screen (2) away from the inner end face (11).

7. The openable and closable graphite felt insulation screen device for a horizontal graphitization furnace according to claim 6, characterized in that, The graphite felt insulation screen (2) has a plurality of vent pipes (27) at one end away from the inner end face (11), and the plurality of vent pipes (27) are arranged around the temperature measuring tube (26).

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