External electrode of graphitization furnace

Abstract

The external electrode of the graphitization furnace comprises a hydraulic rod, a floating frame and movable electrodes, the movable electrodes are correspondingly hinged to the two ends of the floating frame, and the middle of the floating frame is correspondingly hinged to a telescopic shaft of the hydraulic rod so that the floating frame can rotate according to the length difference of two sets of roasted products. The two movable electrodes are driven to move by different distances to adapt to the length difference of two groups of roasted products; due to the arrangement of the floating frame, when the total length deviation of roasted products in the two furnace chambers is too large, the two movable electrodes can generate relative deviation in the corresponding moving directions through the rotation of the floating frame, compared with the prior art, one hydraulic rod is omitted, and the working efficiency is improved. And under the action of one hydraulic rod, the roasting products in the two furnace chambers can be pressed in the same way.

Description

Technical Field

[0001] This utility model relates to the field of graphitization furnace technology, and in particular to an external electrode for a graphitization furnace. Background Technology

[0002] Traditional internally heated graphitization furnaces have an internally connected series structure, with the internal connecting electrode (bridging electrode) being a movable electrode, such as... Figure 1 As shown. The two ends of the movable electrode are connected to the positive and negative conductive electrodes and the fixed electrodes, forming a power supply circuit with the product to be graphitized. However, sometimes the product to be graphitized needs to be placed in the furnace cavity. If the total length deviation of the product to be graphitized in the two furnace cavities is too large, a torque force, i.e., a "shear force", will be generated at a certain point of the bridging electrode, causing the bridging electrode to tilt (e.g., Figure 1 (As shown by the dashed line). In actual production, bridging electrodes often break, which can affect product quality or even disrupt normal production.

[0003] To address the frequent breakage of the aforementioned active electrodes, a graphitization furnace with an externally connected series structure has been developed, such as... Figure 2 The graphitization furnace described above has one movable electrode for each furnace chamber, and a hydraulic rod at the outer end of each movable electrode. By independently pushing and pulling the movable electrode with two hydraulic rods, the problem of electrode breakage due to misalignment in traditional technologies is solved, thus effectively saving investment and reducing costs. However, this externally connected series graphitization furnace still requires two hydraulic rods; and it is difficult to guarantee that the output power of the two hydraulic rods is absolutely the same. Therefore, it is impossible to accurately guarantee that the roasted products in the two furnace chambers are under the same pressure, resulting in differences in the degree of graphitization of the roasted products in the two furnace chambers.

[0004] To address this, we designed an external electrode for a graphitization furnace. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, this utility model discloses an external electrode for a graphitization furnace.

[0006] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0007] An external electrode for a graphitization furnace includes a hydraulic rod, a floating frame, and movable electrodes. Movable electrodes are hinged to both ends of the floating frame, and the middle of the floating frame is hinged to the telescopic shaft of the hydraulic rod. This allows the floating frame to rotate according to the length difference between two sets of roasted products, thereby driving the two movable electrodes to move different distances to adapt to the length difference between the two sets of roasted products.

[0008] Preferably, the outer end of the movable electrode is provided with a first rotating seat, and the first rotating seat is hinged to the end of the floating frame through a first pin.

[0009] Preferably, a flexible sleeve is fitted onto the first pin shaft at the position corresponding to the first rotating seat.

[0010] Preferably, the hydraulic rod telescopic shaft is provided with a second rotating seat, and the second rotating seat is hinged to the floating frame through a second pin.

[0011] Preferably, an adjustable sealing plate is fitted around the active electrode.

[0012] Preferably, the sealing plate includes two U-shaped plates symmetrically snapped onto both sides of the movable electrode, and turnbuckles are provided at opposite ends of the two U-shaped plates to facilitate fixing the two U-shaped plates to the side of the movable electrode.

[0013] Preferably, the outer ends of the two movable electrodes are electrically connected.

[0014] By adopting the technical solution described above, this utility model has the following beneficial effects:

[0015] 1. The floating frame is designed so that when the total length of the products being roasted in the two furnace cavities deviates too much, the rotation of the floating frame can cause the two movable electrodes to shift relative to each other in the corresponding direction of movement. Compared with the existing technology, this not only reduces the number of hydraulic rods, but also ensures that the products being roasted in the two furnace cavities are under the same pressure under the action of a hydraulic rod.

[0016] 2. The flexible sleeve is designed so that when the floating frame rotates, the first rotating seat squeezes the flexible sleeve, causing the flexible sleeve to deform. The deformation of the flexible sleeve replaces the change in the distance between the two moving electrodes, so that the size of the hole through which the moving electrodes pass in the graphitization furnace can be adapted to the size of the moving electrodes.

[0017] 3. The sealing plate can block the gap between the movable electrode and the hole through which the air supply passes by through two U-shaped plates, preventing a large amount of heat loss due to the size difference between the movable electrode and the hole through which it passes. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the existing technology;

[0019] Figure 2 This is a schematic diagram of the existing technology;

[0020] Figure 3 This is a schematic diagram of the structure of this utility model;

[0021] Figure 4 This is a top view of the present invention;

[0022] Figure 5 This is the right view of the present invention;

[0023] Figure 6This is a top view of the present invention in use.

[0024] In the figure: 1. Hydraulic rod; 11. Second rotating seat; 2. Floating frame; 3. Movable electrode; 31. First rotating seat; 4. First pin; 5. Flexible sleeve; 6. Second pin; 7. Sealing plate; 71. U-shaped plate; 72. Turnbuckle; 8. Flexible conductive component. Detailed Implementation

[0025] The present invention will be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if terms such as "upper", "lower", "front", "rear", "left", "right" indicate orientation or positional relationship, they are only corresponding to the drawings of this application for the convenience of describing the present invention. It should be understood that if terms such as "end", "side", "end portion", "side part", "lateral", "longitudinal", etc. indicate orientation or positional relationship, they are only corresponding to the length and width of the corresponding component. That is, "end" indicates the head and tail area in the length direction of the corresponding component, and "side part" indicates the head and tail area in the width direction of the corresponding component. They are used for the convenience of describing the present invention and do not indicate or imply that the device or element referred to must have a specific orientation.

[0026] Example 1, in conjunction with Appendix Figure 3-6 An external electrode for a graphitization furnace includes a hydraulic rod 1, a floating frame 2, and movable electrodes 3. Movable electrodes 3 are hinged to both ends of the floating frame 2. As needed, a first rotating seat 31 is provided at the outer end of the movable electrode 3, and the first rotating seat 31 is hinged to the end of the floating frame 2 via a first pin 4. The middle part of the floating frame 2 is correspondingly hinged to the telescopic shaft of the hydraulic rod 1. As needed, a second rotating seat 11 is provided on the telescopic shaft of the hydraulic rod 1, and the second rotating seat 11 is hinged to the floating frame 2 via a second pin 6. This allows the floating frame 2 to rotate according to the length difference between two sets of roasted products, thereby driving the two movable electrodes 3 to move different distances to adapt to the length difference between the two sets of roasted products.

[0027] In use, when the two fixed electrodes corresponding to the two movable electrodes 3 are connected to the same electrode (positive or negative), the two movable electrodes 3 are also connected to the same electrode (negative or positive); when the two fixed electrodes corresponding to the two movable electrodes 3 are connected to different electrodes (one connected to the positive electrode and the other connected to the negative electrode), the two movable electrodes 3 are electrically connected.

[0028] In this embodiment, since the distance between the two movable electrodes 3 changes as the floating frame 2 rotates, the above-mentioned electrical connection structure adopts a flexible structure.

[0029] As needed, to prevent the current from affecting the hydraulic rod 1, at least one of the floating frame 2, the second rotating seat 11, and the first rotating seat 31 is insulated, for example, made of ceramic material.

[0030] Example 2, in conjunction with Appendix Figure 3-4 In a graphitization furnace external electrode, as in Embodiment 1, the distance between the two movable electrodes 3 changes due to the rotation of the floating frame 2. To ensure smooth insertion of the movable electrodes 3 into the furnace cavity, the size of the hole through which the movable electrodes 3 pass needs to be larger than the size of the movable electrodes 3. This is to prevent significant heat loss due to a large gap between the movable electrodes 3 and the hole. Based on Embodiment 1, a flexible sleeve 5 is fitted onto the shaft of the first pin 4 corresponding to the position of the first rotating seat 31. When the floating frame 2 rotates, the first rotating seat 31 presses against the flexible sleeve 5, causing it to deform. This deformation of the flexible sleeve 5 replaces the change in the distance between the two movable electrodes 3, ensuring that the distance between the two movable electrodes 3 remains constant. This allows the size of the hole through which the movable electrodes 3 pass in the graphitization furnace to match the size of the movable electrodes 3, solving the technical problem of a large gap between the movable electrodes 3 and the hole in Embodiment 1.

[0031] Specifically, the first pin 4 is provided with a reduced diameter portion for fitting a flexible sleeve 5 at the position corresponding to the first rotating seat 31.

[0032] Example 3, in conjunction with Appendix Figure 4 An external electrode for a graphitization furnace, which differs from Embodiment 2 in that an adjustable sealing plate 7 is fitted around the outside of the movable electrode 3;

[0033] The sealing plate 7 includes two U-shaped plates 71 that are symmetrically snapped onto both sides of the movable electrode 3. The two U-shaped plates 71 are provided with turnbuckles 72 at opposite ends to fix the two U-shaped plates 71 to the side of the movable electrode 3. That is, the two U-shaped plates 71 can block the gap between the movable electrode 3 and the hole through which the air supply passes, thus preventing a large amount of heat loss.

[0034] It should be noted that this embodiment can also be implemented based on Embodiment 2.

[0035] The parts of this utility model not described in detail are prior art. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that this utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and are intended to include all changes that fall within the meaning and scope of equivalents within this utility model.

Claims

1. An external electrode for a graphitization furnace, characterized in that: It includes a hydraulic rod (1), a floating frame (2) and a movable electrode (3). The movable electrode (3) is hinged at both ends of the floating frame (2). The middle part of the floating frame (2) is hinged to the telescopic shaft of the hydraulic rod (1) so that the floating frame (2) can rotate according to the length difference of the two sets of roasted products, thereby driving the two movable electrodes (3) to move different distances to adapt to the length difference of the two sets of roasted products.

2. The external electrode of the graphitization furnace according to claim 1, characterized in that: The outer end of the active electrode (3) is provided with a first rotating seat (31), and the first rotating seat (31) is hinged to the end of the floating frame (2) through a first pin (4).

3. The external electrode of the graphitization furnace according to claim 2, characterized in that: A flexible sleeve (5) is fitted on the shaft of the first pin (4) at the position corresponding to the first rotating seat (31).

4. The external electrode of the graphitization furnace according to claim 1, characterized in that: The hydraulic rod (1) has a second rotating seat (11) on its telescopic shaft. The second rotating seat (11) is hinged to the floating frame (2) through a second pin (6).

5. The external electrode of the graphitization furnace according to any one of claims 1, 2, and 4, characterized in that: The movable electrode (3) is fitted with an adjustable sealing plate (7) on its outer side.

6. The external electrode of the graphitization furnace according to claim 5, characterized in that: The sealing plate (7) includes two U-shaped plates (71) symmetrically snapped onto both sides of the movable electrode (3). Turnbuckles (72) are provided at opposite ends of the two U-shaped plates (71) to fix the two U-shaped plates (71) to the side of the movable electrode (3).

7. The external electrode of the graphitization furnace according to claim 1, characterized in that: The outer ends of the two active electrodes (3) are electrically connected.

Images