Sliding conductive carbon brush and electroslag remelting device

Abstract

The utility model relates to the field of industrial smelting, and discloses a sliding conductive carbon brush and an electroslag remelting device, which have higher conductive uniformity and quicker and more convenient installation and replacement, and can improve the efficiency of the electroslag remelting process and the quality of metal products. The carbon brush comprises a carbon brush base, a graphite plate, an insulation clamping plate, a copper pipe base, a voltage regulation insulation sleeve, a fixing pad, an inflation sealing ring, a copper pipe and a conductive electrode. The carbon brush base comprises a base plate and a side wall, the base plate is annular, the side wall of the base plate is provided with an air inlet, the carbon brush base is used for placing the graphite plates, every two graphite plates form a group, each group of graphite plates are arranged on the base plate at equal intervals to form an annular shape, and an insulating clamping plate and a voltage regulating insulating sleeve are arranged between each group of graphite plates. And a copper pipe seat covers the upper surface of the graphite plate.

Description

Technical Field

[0001] The present application relates to the field of industrial smelting, and in particular to a sliding conductive carbon brush and an electroslag remelting device. Background Art

[0002] This section is intended to provide a background or context for the embodiments of the present application as stated in the claims. The contents in this section are for reference only and do not constitute an admission or confirmation that they are prior art that has been disclosed.

[0003] Electroslag Remelting (ESR) is an advanced steel refining technology widely used in the special steel industry, especially in the production of high-performance high-temperature alloys. The main advantage of this technology is that it can produce steel ingots with high consistency, high quality and structural integrity.

[0004] During the electroslag remelting process, the consumable electrode head is immersed in the electroslag pool at the bottom of the water-cooled mold. The current is transmitted through the slag between the electrode and the ingot, and the slag is heated to a temperature sufficient to melt the metal. Subsequently, the molten metal drips from the electrode, passes through the slag layer to the bottom of the water-cooled mold and solidifies. In this process, the metal droplets passing through the slag are freed of non-metallic impurities and rise to the top of the slag pool through chemical precipitation or physical flotation processes. During the formation of the ingot, as the ingot body rises, a thin layer of solidified slag skin is formed between the ingot and the wall of the crystallizer. This layer of slag skin significantly improves the surface quality of the ingot.

[0005] In the electroslag remelting process, carbon brushes, as key electrical components, can ensure that the current can be effectively transferred from the power supply to the consumable electrode. The performance of the carbon brushes will directly affect the heating efficiency of the slag and the melting quality of the metal.

[0006] There are some problems with the carbon brush devices currently on the market, especially in ESR applications. These carbon brush devices usually have a multi-layer structure, and their conductive surface is not uniform, resulting in low current transmission efficiency. In addition, the number of carbon brush devices that need to be installed is large, and the replacement process is complicated and costly, including not only material costs but also corresponding labor costs. These problems increase the operating difficulty and maintenance cost of the entire ESR process. Summary of the invention

[0007] The purpose of the present application is to provide a sliding conductive carbon brush and an electroslag remelting device, which have higher conductivity uniformity, are quicker and more convenient to install and replace, and can improve the efficiency of the electroslag remelting process and the quality of metal products.

[0008] The present application discloses a sliding conductive carbon brush, comprising: a carbon brush base 1, a graphite plate 2, an insulating clamping plate 3, a copper tube base 4, a voltage regulating insulating sleeve 5, a fixing pad 6, an inflatable sealing ring 7, a copper tube 8 and a conductive electrode 9;

[0009] The carbon brush base 1 includes a base plate and a side wall. The base plate is annular. An air inlet is provided on the side wall of the base plate. The carbon brush base 1 is used to place the graphite plates 2. Every two graphite plates 2 form a group. Each group of graphite plates 2 is arranged on the base plate at equal intervals to form a ring. The insulating clamping plate 3 and the voltage regulating insulating sleeve 5 are provided between the two graphite plates 2 of each group. The upper surface of the graphite plate 2 is covered with the copper tube seat 4.

[0010] The outer side of the outer wall of the graphite plate 2 is surrounded by the fixing pad 6 and the inflatable sealing ring 7 in sequence from the inside to the outside, the fixing pad 6 is configured to insulate the inflatable sealing ring 7 and fix multiple groups of graphite plates 2, and the inflatable sealing ring 7 is configured to be inflated through the air inlet, and after swelling, it supports the fixing pad 6 to enable the graphite plate 2 to slide;

[0011] The copper tube 8 is integrated with the copper tube seat 4, the copper tube seat 4 is in contact with the graphite plate 2, the conductive electrode 9 is passed through the center of the inner circle surrounded by multiple groups of graphite plates 2 and is in contact with the graphite plate 2, and the graphite plate 2 is configured to conduct electricity after contacting the copper tube 8 through the copper tube seat 4, and at the same time conduct electricity to the conductive electrode 9.

[0012] In a preferred embodiment, it also includes an inflation joint 10 and a joint mounting seat 11;

[0013] The joint mounting seat 11 is arranged on the outer wall of the side wall of the carbon brush base 1, and the inflation joint 10 is installed on the joint mounting seat 11. Both the joint mounting seat 11 and the inflation joint 10 are provided with through holes, and the through holes are fluidically connected with the air inlet. The inflation joint 10 is configured to inflate the inflation sealing ring 7.

[0014] In a preferred example, the inflatable sealing ring 7 is provided with an inflation port, and the inflatable joint 10 inflates the inflatable sealing ring 7 through the inflation port. The inflatable sealing ring 7 includes an outer wall of the inflatable sealing ring 7 and an inflation cavity, and the inflatable joint 10 inflates the inflatable cavity.

[0015] In a preferred example, the copper tube 8 is hollow, and a water inlet 12 is provided on the copper tube 8. The water inlet 12 is used to allow water to enter the inner cavity of the copper tube 8 for cooling.

[0016] In a preferred example, it also includes a conductive system, which includes a water-cooled cable 13, a first end of the water-cooled cable 13 is connected to the copper tube 8, an inner cavity of the water-cooled cable 13 is fluidically connected to the inner cavity of the copper tube 8, and a second end of the water-cooled cable 13 is connected to a power source for conduction.

[0017] In a preferred embodiment, the voltage regulating insulating sleeve 5 comprises a talc sleeve 51 and a spring 52;

[0018] The spring 52 is disposed in the talc sleeve 51 , and the voltage-regulating insulating sleeve 5 is configured to make the conductive area of ​​the graphite plate 2 evenly contact the copper tube 8 .

[0019] In a preferred embodiment, the conductive electrode 9 is a consumable electrode.

[0020] In a preferred example, the conductive electrode 9 is configured to move up and down to conduct electricity and generate heat energy.

[0021] In a preferred embodiment, the lower end of the conductive electrode 9 is inserted into the electroslag remelting pool.

[0022] The present application also discloses an electroslag remelting device, comprising a sliding conductive carbon brush as described above.

[0023] In the implementation mode of the present application, by introducing the design of an annular carbon brush base, an insulating splint, a voltage regulating insulating sleeve, a fixed pad and an inflatable sealing ring into the sliding conductive carbon brush, some major defects in the traditional carbon brush device can be effectively overcome. The carbon brush device of the present application has a simple hierarchy, and the layout of the annular carbon brush base and multiple groups of graphite plates with equal spacing ensures the uniform distribution of current, which can reduce local overheating and uneven wear caused by current concentration, and improve the stability and service life of the entire system. The design of the insulating splint and the voltage regulating insulating sleeve not only ensures the effective transmission of current but also provides the necessary insulation to prevent electrical failures. In addition, after the inflatable sealing ring is inflated, it can swell up to support the sliding graphite plate of the fixed pad, so that the graphite plate is close to the electrode for conduction, ensuring that the electrode can continuously and stably transmit current, and the contact between the graphite plate and the copper tube improves the conduction efficiency, ensuring that the current flows to the conductive electrode. The loss is smaller, and the overall energy efficiency is enhanced. The steps required to replace the graphite plate also become extremely simple. After releasing the gas in the inflatable sealing ring, the graphite plate will no longer be close to the electrode, so it can be directly replaced.

[0024] Furthermore, by integrating a hollow copper tube and a water-cooling cable in the carbon brush device, effective cooling of the carbon brushes and related conductive components is achieved. This design allows cooling water to flow directly through the copper tube, greatly improving the heat dissipation efficiency and reducing equipment losses and performance degradation caused by overheating. In addition, the use of water-cooling cables not only further enhances the cooling effect, but also ensures the stable transmission of current, thereby extending the service life of the equipment and maintaining the high performance of the carbon brushes.

[0025] Furthermore, an inflatable sealing ring is used and equipped with a special inflatable joint and mounting seat to provide the necessary pressure support for the carbon brush, ensuring that the graphite plate can slide up and down stably. This structure simplifies the inflation process of the device and makes maintenance and pressure adjustment more convenient. Therefore, it can be used in industrial occasions that require rapid response and adjustment, improves the flexibility of the equipment, and makes the device easier to operate.

[0026] Furthermore, the combination of a talc bushing and a voltage-regulating insulating bushing with an internal spring ensures uniform contact between the carbon brush and the copper tube, making the conductive area more uniform and optimizing the current transmission efficiency. By reducing the resistance and hot spots caused by poor contact, this design significantly improves the electrical performance and stability of the entire device.

[0027] Furthermore, the conductive electrode is movable up and down so that it can adjust its position according to the needs of the smelting process, thereby effectively controlling the heat energy generated. This flexibility enables the electrode to optimize the distribution and utilization of heat energy according to the specific conditions of the slag pool, further improving the smelting efficiency and the quality of the metal products.

[0028] Each technical feature disclosed in the above invention content, each technical feature disclosed in each implementation mode and example below, and each technical feature disclosed in the accompanying drawings can be freely combined with each other to form various new technical solutions (these technical solutions should be deemed to have been recorded in this specification), unless such combination of technical features is technically infeasible. For example, in one example, feature A+B+C is disclosed, and in another example, feature A+B+D+E is disclosed, and features C and D are equivalent technical means that play the same role. Technically, only one of them can be used, and it is impossible to use them at the same time. Feature E can be combined with feature C technically. Then, the solution of A+B+C+D should not be deemed to have been recorded because it is technically infeasible, while the solution of A+B+C+E should be deemed to have been recorded. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic cross-sectional structural diagram of a sliding conductive carbon brush according to an embodiment of the present application;

[0030] Figure 2 is a schematic diagram of a top view of a sliding conductive carbon brush according to an embodiment of the present application;

[0031] Figure 3 It is a schematic structural diagram of a sliding conductive carbon brush according to an embodiment of the present application.

[0032] Description of reference numerals:

[0033] 1-carbon brush base, 2-graphite plate, 3-insulating splint, 4-copper tube seat, 5-voltage regulating insulating sleeve, 6-fixing pad, 7-inflatable sealing ring, 8-copper tube, 9-conductive electrode, 10-inflatable joint, 11-joint mounting seat, 12-water inlet, 13-water cooling cable, 51-talc sleeve, 52-spring. DETAILED DESCRIPTION

[0034] In the following description, many technical details are provided to help readers better understand the present application. However, those skilled in the art can understand that the technical solution claimed in the present application can be implemented even without these technical details and various changes and modifications based on the following embodiments.

[0035] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0036] The first embodiment of the present application relates to a sliding conductive carbon brush, the structure of which is as follows: Figure 1-3 As shown, the device includes: a carbon brush base 1, a graphite plate 2, an insulating clamping plate 3, a copper tube base 4, a voltage regulating insulating sleeve 5, a fixing pad 6, an inflatable sealing ring 7, a copper tube 8 and a conductive electrode 9.

[0037] The base includes a base plate and a side wall. The base plate is annular. An air inlet is provided on the side wall of the base plate. The base is used to place graphite plates 2. Every two graphite plates 2 form a group. Each group of graphite plates 2 is arranged on the base plate at equal intervals to form a ring. An insulating clamping plate 3 and a voltage regulating insulating sleeve 5 are provided between the two graphite plates 2 in each group. The upper surface of the graphite plate 2 is covered with a copper tube seat 4. The outer side of the outer wall of the graphite plate 2 is surrounded by a fixing pad 6 and an inflatable sealing ring 7 from the inside to the outside. The fixing pad 6 is configured to insulate the inflatable sealing ring 7 and fix multiple groups of graphite plates 2. The inflatable sealing ring 7 is configured to be inflated through the air inlet, and after swelling, it supports the fixing pad 6 so that the graphite plate 2 slides in the direction of the conductive electrode 9 and contacts the conductive electrode 9. The copper tube 8 is integrated with the copper tube seat 4, and the copper tube seat 4 is in contact with the graphite plate 2. The conductive electrode 9 is passed through the center of the inner circle surrounded by multiple groups of graphite plates 2 and is in contact with the graphite plate 2. The graphite plate 2 is configured to conduct electricity after contacting the copper tube 8 through the copper tube seat 4, and at the same time conduct electricity to the conductive electrode 9.

[0038] In an optional embodiment, the copper tube seat 4 includes an upper cover plate and a spacer, the upper cover plate and the spacer are integrated, the spacer is provided between every two groups of graphite plates 2, the graphite plate 2 slides toward / away from the conductive electrode 9 along the side wall of the spacer, a groove is provided on the upper cover plate for placing the copper tube 4, the upper cover plate is not in direct contact with the conductive electrode 9, and the entire copper tube seat 4 and the copper tube 8 can be made of the same material.

[0039] In an optional embodiment, it may also include an air connector 10 and a connector mounting seat 11, wherein the connector mounting seat 11 is disposed on the outer wall of the side wall of the carbon brush base 1, and the air connector 10 is mounted on the connector mounting seat 11. Both the connector mounting seat 11 and the air connector 10 are provided with through holes, which are fluidically connected to the air inlet, and the air connector 10 is configured to inflate air into the air sealing ring 7. Optionally, the air connector 10 may include a quick connection or disassembly mechanism, such as a threaded connection, a snap-on or push-pull connector, so that the air connector 10 can be quickly connected to or disconnected from the connector mounting seat 11, which is convenient for daily maintenance and emergency operations. Alternatively, the air connector 10 may also be fixed to the connector mounting seat 11, which can be selected according to actual needs. In addition, in order to increase the flexibility and safety of use, the air connector 10 may include a safety valve or a pressure release mechanism to prevent damage to the device due to over-inflation.

[0040] In an optional embodiment, the inflatable sealing ring 7 may be provided with an inflating port, and the inflatable connector 10 inflates the inflatable sealing ring 7 through the inflating port. The inflatable sealing ring 7 includes an outer wall of the inflatable sealing ring 7 and an inflatable cavity, and the inflatable connector 10 inflates the inflatable cavity. Optionally, the inflatable port may be designed to be circular, elliptical or other engineering-useful geometric shapes so as to cooperate with different types of inflatable connectors 10. The inflatable port is located near the edge or in a surface area that is easier to contact so that the inflatable connector 10 can be connected and operated with the inflatable port. Alternatively, the outer wall of the inflatable sealing ring 7 may be bonded to the inner wall of the side wall of the carbon brush base 1 as a whole. In this case, the inflatable port and the air inlet are the same port, and the inflatable connector 10 can directly inflate the inflatable sealing ring 7. Optionally, the inflatable port may be equipped with a valve system, such as a one-way valve or a spiral valve, to control the inflow of air and prevent air leakage, so as to ensure that the sealing ring maintains the required pressure during use. In addition, optionally, considering the expandability and shape retention of the inflatable sealing ring 7 after inflation, the inflatable sealing ring 7 can be made of a flexible and high-pressure resistant material to ensure that it can effectively adapt to its working environment and provide the required mechanical support and sealing effect after inflation. The internal structure of the inflatable cavity can be designed as a multi-chamber structure to improve its stability and uniform expansion ability when subjected to uneven pressure.

[0041] In an optional embodiment, the copper tube 8 may be hollow, and a water inlet 12 is provided on the copper tube 8, and the water inlet 12 is used to allow water to enter the inner cavity of the copper tube 8 for cooling.

[0042] In an optional embodiment, a conductive system may also be included, the conductive system including a water-cooled cable 13, the first end of the water-cooled cable 13 is connected to the copper tube 8, the inner cavity of the water-cooled cable 13 is fluidically connected to the inner cavity of the copper tube 8, and the second end of the water-cooled cable 13 is connected to a power source for conduction.

[0043] In an optional embodiment, the voltage-regulating insulating sleeve 5 may include a talc sleeve 51 and a spring 52 , wherein the spring 52 is disposed inside the talc sleeve 51 , and the voltage-regulating insulating sleeve 5 may be configured to make the conductive area of ​​the graphite plate 2 evenly contact the copper tube 8 .

[0044] In an optional embodiment, the conductive electrode 9 may be a consumable electrode. Optionally, the consumable electrode may include, but is not limited to, an electrode made of metal or alloy, such as steel, aluminum, copper or other precious metals and their alloys. The selection of the consumable electrode is based on the characteristics of the desired output metal ingot and the required material properties, and it can be designed in different shapes and sizes to adapt to different smelting equipment and process requirements. In addition, the composition of the electrode can include a specific proportion of alloying elements to ensure that the required alloy composition and quality standards can be achieved during the electroslag remelting process.

[0045] In an optional embodiment, the conductive electrode 9 can be configured to move up and down to conduct electricity and generate heat energy. For example, during electroslag remelting, the position and size of the heating area can be accurately controlled by its vertical movement to ensure uniform temperature of the slag and avoid local overheating or insufficiently heated areas. Optionally, the movement of the electrode can be managed by a control system, which can include a programmable logic controller PLC and a position sensor to ensure the accuracy and response speed of the electrode movement, and adjust the position of the electrode by receiving electrical signals such as temperature and current related signals sent by sensors during the smelting process to respond to real-time changes and needs during the processing process.

[0046] In an optional embodiment, the lower end of the conductive electrode 9 is inserted into the electroslag remelting pool.

[0047] In order to better understand the technical solution of the present application, a specific example is provided below for illustration. The details listed in the example are mainly for ease of understanding and are not intended to limit the scope of protection of the present application.

[0048] In this embodiment, a sliding conductive carbon brush device for use in an electroslag remelting process is disclosed, which is intended to improve the conductive efficiency and the convenience of equipment maintenance. The device is mainly composed of a fixed pad 6, an inflatable sealing ring 7, an inflatable joint 10 and its mounting seat, a graphite plate 2, an insulating splint 3, a carbon brush base 1, a copper tube 8, a talc sleeve 51, a spring 52, an electrode and a conductive system. The annular carbon brush base 1 serves as the core supporting structure of the device, and 16 groups of graphite plates 2 are arranged on the carbon brush base 1 at equal intervals to form a ring, and the electrode passes through the center of the inner circle surrounded by the 16 groups of graphite plates 2. An insulating splint 3 is sandwiched between two graphite plates 2 to form a group of graphite plates 2, and a talc sleeve 51 is sandwiched between each two groups of graphite plates 2, and a spring 52 is provided in the middle of the talc sleeve 51. The fixing pad 6 is fixed on the outer ring of the annular graphite plate 2, and the inflatable sealing ring 7 is installed in the carbon brush base 1. The inflatable sealing ring 7 is located outside the outer ring of the fixing pad 6. The inflatable joint 10 is installed on the joint mounting seat 11, and the inflatable joint 10 is connected to the external gas source, and the inflatable sealing ring 7 is inflated through the inflatable joint 10. The carbon brush base 1 is fixed to the copper tube 8 with bolts, and the conductive system is connected to the copper tube 8 and powered.

[0049] After installation, the inflation operation causes the inflation seal 7 to swell, which in turn pushes the fixed pad 6 and the graphite plate 2 fixed thereon to move toward the central electrode to achieve conductive connection. The design of this inflation system not only provides fast operation, but also makes maintenance and component replacement processes faster and easier. When replacement or maintenance is required, the gas in the inflation seal 7 is released, and the carbon brush device can be easily disassembled without complicated tools or procedures.

[0050] In addition, the hollow design of the copper tube 8 is connected to the water-cooled cable 13 of the conductive system, which not only ensures the efficiency of the conductive process, but also effectively cools the copper tube 8, avoiding the overheating problem in a high-temperature environment, extending the service life of the equipment and maintaining the stable performance of the graphite plate 2. This comprehensive design enables the device to have high efficiency and reliability in high-load industrial applications such as electroslag remelting, while optimizing energy consumption and operational safety.

[0051] A second embodiment of the present application relates to an electroslag remelting device, which includes a sliding conductive carbon brush as described above.

[0052] This embodiment is a product embodiment that includes the first embodiment, and the technical details of the first embodiment can be applied to this embodiment.

[0053] It should be noted that, in the present application, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the term "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or equipment. In the absence of more restrictions, the elements defined by the sentence "include one" do not exclude the existence of other identical elements in the process, method, article or equipment including the elements. In the present application, if it is mentioned that a certain action is performed according to a certain element, it means at least the meaning of performing the action according to the element, which includes two situations: performing the action only according to the element and performing the action according to the element and other elements. Multiple, multiple, multiple, etc. expressions include 2, 2 times, 2 kinds and more than 2, more than 2 times, more than 2 kinds.

[0054] This specification includes combinations of the various embodiments described herein. Individual references to embodiments (e.g., "one embodiment" or "some embodiments" or "preferred embodiments"); however, these embodiments are not mutually exclusive unless indicated as mutually exclusive or it is clear to a person skilled in the art that they are mutually exclusive. It should be noted that the word "or" is used in this specification in a non-exclusive sense unless the context clearly indicates or requires otherwise.

[0055] All documents mentioned in this specification are considered to be included in the disclosure of this application as a whole, so that they can be used as a basis for modification when necessary. In addition, it should be understood that the above is only a preferred embodiment of this specification and is not intended to limit the scope of protection of this specification. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of one or more embodiments of this specification should be included in the scope of protection of one or more embodiments of this specification.

Claims

1. A sliding conductive carbon brush, characterized in that: include: A carbon brush base (1), a graphite plate (2), an insulating clamping plate (3), a copper tube base (4), a voltage regulating insulating sleeve (5), a fixing pad (6), an inflatable sealing ring (7), a copper tube (8) and a conductive electrode (9); The carbon brush base (1) comprises a base plate and a side wall, the base plate is annular, and an air inlet is provided on the side wall of the base plate. The carbon brush base (1) is used to place the graphite plates (2), and every two graphite plates (2) form a group. Each group of graphite plates (2) are arranged on the base plate at equal intervals to form a ring shape. The insulating clamping plate (3) and the voltage regulating insulating sleeve (5) are provided between the two graphite plates (2) in each group, and the upper surface of the graphite plate (2) is covered with the copper tube seat (4); The outer side of the outer wall of the graphite plate (2) is surrounded by the fixing pad (6) and the inflatable sealing ring (7) in sequence from the inside to the outside, the fixing pad (6) is configured to insulate the inflatable sealing ring (7) and fix the multiple groups of graphite plates (2), and the inflatable sealing ring (7) is configured to be inflated through the air inlet, and after swelling, it presses against the fixing pad (6) to enable the graphite plate (2) to slide; The copper tube (8) and the copper tube seat (4) are integrated, the copper tube seat (4) is in contact with the graphite plate (2), the conductive electrode (9) is arranged at the center of an inner circle surrounded by a plurality of groups of graphite plates (2) and in contact with the graphite plate (2), and the graphite plate (2) is configured to conduct electricity after contacting the copper tube (8) through the copper tube seat (4), and at the same time conduct electricity to the conductive electrode (9).

2. The sliding conductive carbon brush according to claim 1, characterized in that: It also includes an inflation joint (10) and a joint mounting seat (11); The joint mounting seat (11) is arranged on the outer wall of the side wall of the carbon brush base (1), and the inflation joint (10) is installed on the joint mounting seat (11). Both the joint mounting seat (11) and the inflation joint (10) are provided with through holes, and the through holes are fluidically connected to the air inlet. The inflation joint (10) is configured to inflate air into the inflation sealing ring (7).

3. The sliding conductive carbon brush according to claim 2, characterized in that: The inflatable sealing ring (7) is provided with an inflating port, and the inflatable joint (10) inflates air into the inflatable sealing ring (7) through the inflating port. The inflatable sealing ring (7) comprises an outer wall of the inflatable sealing ring (7) and an inflatable cavity, and the inflatable joint (10) inflates air into the inflatable cavity.

4. The sliding conductive carbon brush according to claim 1, characterized in that: The copper tube (8) is hollow and is provided with a water inlet (12). The water inlet (12) is used to allow water to enter the inner cavity of the copper tube (8) for cooling.

5. The sliding conductive carbon brush according to claim 4, characterized in that: It also includes a conductive system, which includes a water-cooling cable (13), a first end of the water-cooling cable (13) is connected to the copper tube (8), an inner cavity of the water-cooling cable (13) is fluidically connected to an inner cavity of the copper tube (8), and a second end of the water-cooling cable (13) is connected to a power source for conduction.

6. The sliding conductive carbon brush according to claim 1, characterized in that: The voltage regulating insulating sleeve (5) comprises a talc sleeve (51) and a spring (52); The spring (52) is arranged inside the talc sleeve (51), and the voltage-regulating insulating sleeve (5) is configured to make the conductive area of ​​the graphite plate (2) evenly contact the copper tube (8).

7. The sliding conductive carbon brush according to claim 1, characterized in that: The conductive electrode (9) is a consumable electrode.

8. The sliding conductive carbon brush according to claim 1, characterized in that: The conductive electrode (9) is configured to move up and down to conduct electricity and generate heat energy.

9. The sliding conductive carbon brush according to claim 1, characterized in that: The lower end of the conductive electrode (9) is inserted into the electroslag remelting pool.

10. An electroslag remelting device, characterized in that: It comprises a sliding conductive carbon brush as described in any one of claims 1 to 9.

Images