Furnace end temperature detecting and monitoring system of graphitization furnace

Abstract

The utility model discloses a graphitization furnace end temperature detecting and monitoring system which comprises two water-cooled jacket clamping plates installed on the two sides of a set of electrodes, the two water-cooled jacket clamping plates are fixed through a tensioning lead screw, a supporting device is further arranged at the bottoms of the water-cooled jacket clamping plates, an adjusting rod is further hinged to one water-cooled jacket clamping plate, and the other water-cooled jacket clamping plate is hinged to the other water-cooled jacket clamping plate. The adjusting rod and the water-cooled jacket clamping plate are in flexible connection, a thermocouple is installed on the adjusting rod, and a thermocouple extension line of the thermocouple is connected to a display instrument through a wiring end. The temperature of each electrode can be monitored in real time, multiple electrodes at the same vertical position can share one cooling device, stress at the electrode connecting positions is reduced, and therefore when abnormal data are found, adjustment can be made in time, factors influencing the service life of the electrodes are reduced from multiple aspects, and the service life of the electrodes is prolonged. Therefore, the service life of the electrode is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of mechanical technology, and in particular to a temperature detection and monitoring system for the furnace head of a graphitization furnace. Background Technology

[0002] The graphitization furnace is one of the important pieces of equipment for graphite production. Inside a long, refractory-constructed furnace body, carbon billets and granules are loaded to form a conductive furnace core, which is surrounded by insulating material. Conductive electrodes are installed on the two upper walls of the furnace head and connected to a power source, forming an electrical circuit. When the circuit is connected, the furnace core heats up due to resistance, causing the carbon billets to transform into graphite through high-temperature heat treatment at 2200-2300℃.

[0003] The furnace head electrodes are controlled by the following commands: issuing process power supply command, removing insulation board, powering on, adjusting gear, electrode temperature testing, power off, and inserting insulation board. During use, it was found that frequent breakage occurred at the electrode connection within one year, seriously affecting production operation and company profits. Research revealed that abnormally high temperatures frequently occurred at the furnace head electrode connection, causing changes in the material properties of the electrode connection, making it unable to reach the original physical parameters and resulting in breakage. Therefore, we proposed a furnace head temperature detection and monitoring system for graphitization furnaces to monitor the furnace head temperature. Utility Model Content

[0004] This application provides a graphitization furnace head temperature detection and monitoring system, which solves the problem of short service life at the electrode connection of the graphitization furnace head.

[0005] This application provides a graphitization furnace head temperature detection and monitoring system, including two water-cooled jacket plates installed on both sides of a set of electrodes. The two water-cooled jacket plates are fixed together by a tension rod, and a support device is provided at the bottom of each water-cooled jacket plate. An adjusting rod is also hinged to one of the water-cooled jacket plates. The adjusting rod and the water-cooled jacket plate are flexibly connected, and a thermocouple is installed on the adjusting rod. The thermocouple extension wire is connected to a display instrument through a terminal.

[0006] Preferably, the support device includes a threaded sleeve, and an adjusting screw is threaded onto the inner thread of the threaded sleeve.

[0007] Preferably, a shim is provided at the bottom of the adjusting screw.

[0008] Preferably, a transverse support pad is provided between the two water-cooled jacket clamps, and the tensioning screw passes through the transverse support pad.

[0009] Preferably, a tension spring is also installed between the adjusting rod and the water-cooled jacket clamp.

[0010] Preferably, one end of the adjusting rod is fixed with an abutment piece, the abutment piece is provided with an installation notch, and the thermocouple is installed in the installation notch.

[0011] Preferably, the thermocouple is a type K or type J thermocouple.

[0012] Preferably, the inner wall of the water-cooled jacket clamp matches the shape of the electrode.

[0013] Preferably, the water-cooling jacket clamp is made of stainless steel.

[0014] As can be seen from the above technical solution, this application provides a graphitization furnace head temperature detection and monitoring device. In use, the electrodes are divided into several groups in the vertical direction. Each group of electrodes is equipped with two water-cooled jacket clamps and fixed and tightened by tension screws. The weight of the water-cooled jacket clamps is supported on the ground by a support device to prevent it from affecting the weight of the electrodes. Then, according to the number of electrodes, thermocouples are installed on the adjusting rod, ensuring that one thermocouple is installed for each electrode. Then, through a multi-terminal display instrument, the extension lines of multiple thermocouples are connected to the terminals, and the data is transmitted to the central control platform to monitor the heat of each electrode. When an abnormal temperature occurs, an alarm is triggered in time, and personnel are arranged to investigate the specific cause to avoid the electrodes being under abnormally high temperatures for a long time.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. By setting up the water-cooling jacket clamp, the water cooling in the same vertical position is treated as a whole, which plays a certain supporting role and can cool the electrodes through water cooling.

[0017] 2. By setting up a support device, the weight of the water-cooled jacket clamp is applied to the ground, reducing the impact of water-cooled installation on the electrodes, thereby improving the service life of the electrode connection.

[0018] 3. By adjusting the rod and setting the thermocouple, the temperature of each electrode supported by the water-cooled jacket can be monitored accurately, and the monitoring results can be transmitted in real time to react to abnormal data immediately.

[0019] 4. With the multi-terminal display instrument setting, due to the continuous high temperature of 200-400℃ at the working location, when a single thermocouple is damaged, it can be removed and replaced in a timely manner.

[0020] In summary, this application not only enables real-time monitoring of the temperature of each electrode, but also allows multiple electrodes in the same vertical position to share a single cooling device, reducing the stress at the electrode connection points. This allows for timely adjustments when abnormal data is detected, reducing factors affecting electrode lifespan from multiple perspectives and thus improving electrode lifespan. Attached Figure Description

[0021] To more clearly illustrate the technical solution of this application, the accompanying drawings used in the implementation examples will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained from these drawings without any creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of a graphitization furnace head temperature detection and monitoring system proposed in this utility model;

[0023] Figure 2 This is a schematic diagram of the transverse support pad and installation structure of a graphitization furnace head temperature detection and monitoring system proposed in this utility model;

[0024] Figure 3 This is an enlarged view of section A of the graphitization furnace head temperature detection and monitoring system proposed in this utility model;

[0025] In the diagram: 1 Water-cooled jacket clamp, 2 Thermocouple extension wire, 3 Display instrument, 4 Terminal, 5 Screw sleeve, 6 Adjusting screw, 7 Washer, 8 Tensioning rod, 9 Horizontal support pad, 10 Thermocouple, 11 Adjusting rod, 12 Tensioning spring, 13 Contact plate, 14 Mounting notch. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0027] See Figure 1-3This application discloses a temperature monitoring system for the furnace head of a graphitization furnace. The system monitors the temperature at the electrode connection points of the graphitization furnace to prevent excessively high temperatures from affecting the electrode's lifespan. During use, it was found that temperatures exceeding 400°C at the electrode connection points negatively impacted electrode lifespan. Therefore, this system monitors this location to ensure the temperature does not exceed 400°C. Specifically, it includes two water-cooled jacket plates 1 installed on both sides of a set of electrodes. This application uses the water jackets at the electrode ends as a single unit, increasing the water inlet volume. Simultaneously, it reduces the weight at the electrode ends through a support mechanism, thereby improving electrode lifespan. The inner wall of the water-cooled jacket plate 1 matches the electrode shape. When the water-cooled jacket plate 1 needs to... To achieve a cooling effect, the water-cooled jacket clamp 1 is made of stainless steel and is fixed between the two water-cooled jacket clamps 1 by a tension rod 8 during installation. It should be understood that the clamping force of the tension rod 8 needs to be at the optimal contact force with the electrode. In addition, a support device is provided at the bottom of the water-cooled jacket clamp 1. When installing the water-cooled jacket clamp 1, the support is first adjusted by the support device so that its weight falls entirely on the ground, and then the water-cooled jacket clamp 1 is installed and fixed. Since the water-cooled jacket clamp 1 fixed by the tension rod 8 can effectively cool the electrode connection and will not affect the installation position of the electrode, this application does not require the electrode as a support point. Therefore, its clamping force is sufficient to achieve the purpose of cooling.

[0028] One of the water-cooling jacket plates 1 is also hinged with an adjusting rod 11. The adjusting rod 11 can rotate on one side of the water-cooling jacket plate 1. The adjusting rod 11 and the water-cooling jacket plate 1 are flexibly connected. That is, when one end of the adjusting rod 11 rotates to the electrode side, it can be stably positioned at that position. Therefore, a thermocouple 10 is installed on the adjusting rod 11. In use, the thermocouple 10 is installed on the adjusting rod 11, and the adjusting rod 11 is adjusted so that the thermocouple 10 is in contact with the electrode, thereby accurately measuring the temperature of each electrode. In this application, the thermocouple 10 is a K-type or J-type thermocouple, which has a long service life and accuracy at a temperature of 200℃. The thermocouple extension line 2 of the thermocouple 10 is connected to the display instrument 3 through the terminal 4. In this application, the thermocouple 10 and the display instrument 3 are connected by a quick connection through the terminal 4. When a single thermocouple 10 malfunctions, it can be replaced in time, improving the installation speed, reducing maintenance costs, and making maintenance convenient.

[0029] In this utility model, the support device includes a screw sleeve 5, and an adjusting screw 6 is threaded onto the screw sleeve 5. By rotating the adjusting screw 6, one end of it touches the ground to achieve the supporting function. Furthermore, a washer 7 is provided at the bottom of the adjusting screw 6 to support the adjusting screw 6. The washer 7 can be placed directly on the ground or fixed to the end of the adjusting screw 6.

[0030] In this invention, in order to further reduce the self-weight of the protruding electrode position, a transverse support pad 9 is provided between the two water-cooling jacket plates 1. The tensioning rod 8 passes through the transverse support pad 9, and the transverse support pad 9 supports the suspended electrode connection, further reducing the impact of self-weight on the electrode, thereby improving the service life of the electrode.

[0031] In this invention, the thermocouple 10 can fully contact the electrode. A tension spring 12 is also installed between the adjusting rod 11 and the water-cooled jacket plate 1. The adjusting rod 11 is tightened by the tension spring 12, so that the thermocouple 10 contacts the electrode.

[0032] In this utility model, one end of the adjusting rod 11 is fixed with a contact piece 13. The contact piece 13 can be bent to make it as parallel as possible to the electrode. The contact piece 13 is provided with an installation notch 14. The thermocouple 10 is installed in the installation notch 14. When the thermocouple 10 is inserted into the installation notch 14, it is screwed onto the contact piece 13 by a nut.

[0033] As can be seen from the above technical solution, during use, the electrodes are divided into several groups in the vertical direction. Each group of electrodes is equipped with two water-cooled jacket clamps 1 and fixed and tightened by tension screws 8. The weight of the water-cooled jacket clamps 1 is supported on the ground by the support device to prevent it from affecting the weight of the electrodes. Then, according to the number of electrodes, thermocouples 10 are installed on the adjusting rods 11, ensuring that one thermocouple 10 is installed for each electrode. Then, through the display instrument 3 of the multi-terminal 4, multiple thermocouple extension lines 2 are connected to the terminal 4 and the data is transmitted to the central control platform to monitor the heat of each electrode. When an abnormal temperature occurs, an alarm is triggered in time and personnel are arranged to investigate the specific cause to avoid the electrodes being under abnormal high temperature for a long time.

[0034] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope of this application is indicated by the claims.

[0035] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The embodiments of this application described above do not constitute a limitation on the scope of protection of this application.

Claims

1. A temperature detection and monitoring system for the furnace head of a graphitization furnace, characterized in that: It includes two water-cooled jacket plates (1) installed on both sides of a set of electrodes. The two water-cooled jacket plates (1) are fixed together by a tension rod (8). A support device is also provided at the bottom of the water-cooled jacket plate (1). An adjusting rod (11) is also hinged on one of the water-cooled jacket plates (1). The adjusting rod (11) and the water-cooled jacket plate (1) are flexibly connected. A thermocouple (10) is installed on the adjusting rod (11). The thermocouple extension line (2) of the thermocouple (10) is connected to the display instrument (3) through a terminal (4).

2. The graphitization furnace head temperature detection and monitoring system according to claim 1, characterized in that, The support device includes a screw sleeve (5), and an adjusting screw (6) is threaded onto the screw sleeve (5).

3. The graphitization furnace head temperature detection and monitoring system according to claim 2, characterized in that, A shim (7) is provided at the bottom of the adjusting screw (6).

4. The graphitization furnace head temperature detection and monitoring system according to claim 1, characterized in that, A transverse support pad (9) is also provided between the two water-cooled jacket clamps (1), and the tensioning rod (8) passes through the transverse support pad (9).

5. The graphitization furnace head temperature detection and monitoring system according to claim 1, characterized in that, A tension spring (12) is also installed between the adjusting rod (11) and the water-cooled jacket clamp (1).

6. The graphitization furnace head temperature detection and monitoring system according to claim 5, characterized in that, One end of the adjusting rod (11) is fixed with a contact piece (13), and the contact piece (13) is provided with an installation notch (14), and the thermocouple (10) is installed in the installation notch (14).

7. The graphitization furnace head temperature detection and monitoring system according to claim 1, characterized in that, The thermocouple (10) is a type K or type J thermocouple.

8. The graphitization furnace head temperature detection and monitoring system according to claim 1, characterized in that, The inner wall of the water-cooled jacket clamp (1) matches the shape of the electrode.

9. The graphitization furnace head temperature detection and monitoring system according to claim 1, characterized in that, The water-cooled jacket clamp (1) is made of stainless steel.

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