Graphite electrode assembly

Abstract

The utility model relates to the technical field of graphite electrodes, in particular to a graphite electrode assembly which comprises a graphite electrode body, a threaded connector is arranged above the graphite electrode body, a threaded connection hole is formed in the bottom of the graphite electrode body, and the threaded connection hole is in threaded fit with the threaded connector. An anti-oxidation mechanism is arranged on the outer side of the graphite electrode body, the anti-oxidation mechanism is composed of a protective sheath and an anti-oxidation assembly, a heat dissipation mechanism is arranged on the surface of the graphite electrode body, an iron core and a heat dissipation part are arranged in the heat dissipation mechanism, and a threaded connector is detachably connected with a threaded connection hole through an anti-falling mechanism. The anti-falling mechanism is composed of a connecting column and an anti-falling component. According to the graphite electrode assembly, the phenomenon that the graphite electrode assembly is loosened during use is avoided, the heat dissipation effect of the graphite electrode assembly during use is improved, and the service life of the graphite electrode assembly is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of graphite electrodes, in particular to a graphite electrode assembly. Background Art

[0002] Graphite electrode refers to a graphite conductive material made from petroleum coke and asphalt coke, bonded by coal tar, and processed through a series of processing techniques. With the development of science and technology, graphite electrodes have developed rapidly. Due to their good conductivity, safety and reliability, and easy processing, they have been widely used.

[0003] Graphite electrode assemblies are generally connected and fixed by threads. After a long time, the threads are prone to loosening, which can easily cause the graphite electrode assembly to loosen during use; the graphite electrode assembly will generate heat during use, and the general graphite electrode assembly only conducts heat through its own heat, and the heat dissipation effect is poor; the high-temperature oxidation resistance of the graphite electrode assembly is poor. During use, the graphite electrode assembly is easily reacted with oxygen in the air and consumed in vain, thereby affecting the service life of the graphite electrode assembly. Utility Model Content

[0004] The purpose of the present invention is to provide a graphite electrode assembly to solve the problems in the above background art, such as the phenomenon of the graphite electrode assembly becoming loose during use, poor heat dissipation effect, and easy shortening of service life.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a graphite electrode assembly, comprising a graphite electrode body, a threaded connector is provided above the graphite electrode body, a threaded connection hole is provided at the bottom of the graphite electrode body, the threaded connection hole and the threaded connector are threadedly matched with each other, an anti-oxidation mechanism is provided on the outside of the graphite electrode body, the anti-oxidation mechanism consists of a protective sheath and an anti-oxidation component, a heat dissipation mechanism is provided on the surface of the graphite electrode body, the interior of the heat dissipation mechanism includes an iron core and a heat dissipation component, the threaded connector and the threaded connection hole are disassembled and connected by an anti-slip mechanism, and the anti-slip mechanism consists of a connecting column and an anti-slip component.

[0006] Preferably, an anti-oxidation component is provided on the outer side of the graphite electrode body, and a protective sheath is adhered to the surface of the anti-oxidation component.

[0007] Preferably, silicon nitride ceramics and hafnium carbide coatings are provided inside the anti-oxidation component, the surface of the threaded connector is coated with hafnium carbide coating, the surface of the hafnium carbide coating is adhered with silicon nitride ceramics, and the surface of the silicon nitride ceramics is bonded and fixed to the surface of the protective sheath.

[0008] Preferably, an iron core is embedded in the interior of the graphite electrode body along the circumferential direction, and a heat dissipation component is provided at the center of the graphite electrode body.

[0009] Preferably, the heat dissipation component consists of a heat dissipation hole, a heat conducting tube and an air inlet. A heat dissipation hole is opened at the center of the graphite electrode body, and both ends of the heat dissipation hole extend to the inside of the threaded connection head and the threaded connection hole respectively.

[0010] Preferably, a heat-conducting tube is fixed to the inner wall of the heat dissipation hole, an air inlet is fixed inside the heat dissipation hole, and one end of the air inlet extends to the outside of the threaded connector.

[0011] Preferably, a connecting column is fixed to the bottom of the threaded connector, the diameter of the connecting column is smaller than the diameter of the threaded connector, and an anti-slip component is provided on one side of the threaded connection hole.

[0012] Preferably, the interior of the anti-slip component includes a connecting rod, a fixing ring, a stretching spring, a baffle and a guide groove. A fixing ring is fixed to the bottom of the graphite electrode body, and guide grooves are provided on both sides of the interior of the fixing ring. A baffle is slidably provided inside the guide groove, and one end of the baffle is an inclined structure. The surface of the baffle is tightly fitted with the surfaces of the threaded connector and the connecting column respectively.

[0013] Preferably, a connecting rod is provided on the surface of the fixing ring, one end of the connecting rod passes through the fixing ring and is fixedly connected to the surface of the baffle, and an extension spring is mounted on the surface of the connecting rod, one end of the extension spring is fixedly connected to the surface of the fixing ring.

[0014] Compared with the prior art, the beneficial effects of the present invention are: the graphite electrode assembly not only avoids the phenomenon of the graphite electrode assembly being loose during use, improves the heat dissipation effect of the graphite electrode assembly during use, but also prolongs the service life of the graphite electrode assembly;

[0015] 1. By providing an anti-slip mechanism, the hafnium carbide coating is sleeved on the surface of the threaded connector, and the graphite electrode body is connected and fixed under the cooperation of the threads of the threaded connector and the threaded connection hole. At this time, the threaded connector squeezes the stopper, causing the stopper to gradually shrink into the inside of the guide groove. When the threaded connector and the threaded connection hole are screwed tightly, the threaded connection hole and the stopper are staggered. Since the diameter of the connecting column is smaller than the diameter of the threaded connector, the stopper moves to the intersection of the connecting column and the threaded connector under the action of the extension spring, blocking and limiting the threaded connector, so that the threaded connector is not easy to loosen. If the threaded connector and the threaded connection hole need to be separated, the connecting rod can be pulled first to slide the stopper into the inside of the guide groove, and then the graphite electrode body can be rotated to separate the threaded connector from the threaded connection hole, so as to realize the anti-slip function of the graphite electrode assembly, thereby avoiding the phenomenon of loosening of the graphite electrode assembly during use;

[0016] 2. By providing a heat dissipation mechanism, cold air is introduced into the heat dissipation hole through the air inlet hole to dissipate heat from the graphite electrode body. The heat conduction speed of the graphite electrode body is accelerated under the action of the heat conduction tube. At the same time, the heat dissipation component can evenly guide the current to the periphery of the graphite electrode body to prevent the current from concentrating inside the graphite electrode body and causing the internal temperature of the electrode to be too high, thereby achieving efficient heat dissipation function of the graphite electrode assembly and improving the heat dissipation effect of the graphite electrode assembly during use.

[0017] 3. By providing an anti-oxidation mechanism, the side of the graphite electrode body can be protected under the action of silicon nitride ceramics and hafnium carbide coatings, so that the side of the graphite electrode body is not easily oxidized by contact with air. The anti-oxidation component can be protected under the action of the protective sleeve to achieve the anti-oxidation function of the graphite electrode assembly, thereby extending the service life of the graphite electrode assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional appearance structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0020] Figure 3 This is an enlarged structural diagram of the heat dissipation mechanism of the present utility model;

[0021] Figure 4 It is a schematic diagram of the enlarged structure of the anti-slip mechanism of the utility model.

[0022] In the figure: 1. Graphite electrode body; 101. Threaded connector; 102. Threaded connection hole; 2. Anti-oxidation mechanism; 201. Protective sleeve; 202. Anti-oxidation component; 2021. Silicon nitride ceramic; 2022. Hafnium carbide coating; 3. Heat dissipation mechanism; 301. Iron core; 302. Heat dissipation component; 3021. Heat dissipation hole; 3022. Heat-conducting tube; 3023. Air inlet; 4. Anti-slip mechanism; 401. Connecting column; 402. Anti-slip component; 4021. Connecting rod; 4022. Fixing ring; 4023. Extension spring; 4024. Baffle; 4025. Guide groove. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. In addition, the terms "first", "second", "third", "upper, lower, left, right", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. At the same time, in the description of the present invention, unless otherwise clearly stipulated and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] The utility model provides a graphite electrode assembly having a structure as follows Figure 1 and Figure 2 As shown, it includes a graphite electrode body 1, a threaded connector 101 is provided on the top of the graphite electrode body 1, a threaded connection hole 102 is opened at the bottom of the graphite electrode body 1, the threaded connection hole 102 and the threaded connector 101 are threadedly matched with each other, and an anti-oxidation mechanism 2 is provided on the outside of the graphite electrode body 1. The anti-oxidation mechanism 2 consists of a protective sleeve 201 and an anti-oxidation component 202. The outside of the graphite electrode body 1 is provided with an anti-oxidation component 202, the surface of the anti-oxidation component 202 is adhered to the protective sleeve 201, and the interior of the anti-oxidation component 202 is provided with silicon nitride ceramic 2021 and hafnium carbide coating 2022, the surface of the threaded connector 101 is coated with hafnium carbide coating 2022, the surface of the hafnium carbide coating 2022 is adhered to silicon nitride ceramic 2021, and the surface of the silicon nitride ceramic 2021 is bonded and fixed to the surface of the protective sleeve 201.

[0025] When in use, the side of the graphite electrode body 1 can be protected by the action of the silicon nitride ceramic 2021 and the hafnium carbide coating 2022, so that the side of the graphite electrode body 1 is not easily oxidized by contact with air, and the anti-oxidation component 202 can be protected by the protective sheath 201 to realize the anti-oxidation function of the graphite electrode component.

[0026] Furthermore, if Figure 3 As shown, a heat dissipation mechanism 3 is provided on the surface of the graphite electrode body 1, and the interior of the heat dissipation mechanism 3 includes an iron core 301 and a heat dissipation component 302. The interior of the graphite electrode body 1 is circumferentially embedded with the iron core 301, and a heat dissipation component 302 is provided at the center of the graphite electrode body 1. The heat dissipation component 302 consists of a heat dissipation hole 3021, a heat conductive tube 3022 and an air inlet 3023. A heat dissipation hole 3021 is opened at the center of the graphite electrode body 1, and both ends of the heat dissipation hole 3021 extend to the interior of the threaded connector 101 and the threaded connection hole 102 respectively. The heat conductive tube 3022 is fixed to the inner wall of the heat dissipation hole 3021, and the air inlet 3023 is fixed to the interior of the heat dissipation hole 3021, and one end of the air inlet 3023 extends to the outside of the threaded connector 101.

[0027] During use, cold air is introduced into the heat dissipation hole 3021 through the air inlet hole 3023 to dissipate heat from the graphite electrode body 1, and the heat conduction speed of the graphite electrode body 1 is accelerated under the action of the heat conduction tube 3022. At the same time, under the action of the heat dissipation component 302, the current can be evenly guided to the periphery of the graphite electrode body 1 to prevent the current from being concentrated inside the graphite electrode body 1 and causing the internal temperature of the electrode to be too high, thereby realizing the efficient heat dissipation function of the graphite electrode assembly.

[0028] Furthermore, if Figure 4As shown, the threaded connector 101 and the threaded connection hole 102 are detachably connected through the anti-slip mechanism 4, and the anti-slip mechanism 4 is composed of a connecting column 401 and an anti-slip component 402. The bottom of the threaded connector 101 is fixed with a connecting column 401, and the diameter of the connecting column 401 is smaller than the diameter of the threaded connector 101. An anti-slip component 402 is provided on one side of the threaded connection hole 102. The interior of the anti-slip component 402 includes a connecting rod 4021, a fixing ring 4022, an extension spring 4023, a baffle 4024 and a guide groove 4025. The bottom of the graphite electrode body 1 is fixed with a fixing ring 4022, and the fixing ring 4 Guide grooves 4025 are provided on both sides of the interior of 022, and a baffle 4024 is slidingly provided inside the guide groove 4025. One end of the baffle 4024 is an inclined structure, and the surfaces of the baffle 4024 are tightly fitted with the surfaces of the threaded connector 101 and the connecting column 401 respectively. A connecting rod 4021 is provided on the surface of the fixing ring 4022, and one end of the connecting rod 4021 passes through the fixing ring 4022 and is fixedly connected to the surface of the baffle 4024. The surface of the connecting rod 4021 is covered with an extension spring 4023, and one end of the extension spring 4023 is fixedly connected to the surface of the fixing ring 4022.

[0029] When in use, the hafnium carbide coating 2022 is put on the surface of the threaded connector 101, and the graphite electrode body 1 is connected and fixed under the threaded cooperation of the threaded connector 101 and the threaded connection hole 102. At this time, the threaded connector 101 squeezes the stopper 4024, causing the stopper 4024 to gradually shrink into the inside of the guide groove 4025. When the threaded connector 101 and the threaded connection hole 102 are screwed and tightened, the threaded connection hole 102 and the stopper 4024 are staggered. Since the diameter of the connecting column 401 is smaller than the diameter of the threaded connector 101, the stopper 4024 is staggered. The retaining bar 4024 moves to the intersection of the connecting column 401 and the threaded connector 101 under the action of the extension spring 4023, blocking and limiting the threaded connector 101 so that the threaded connector 101 is not easy to loosen. If the threaded connector 101 and the threaded connection hole 102 need to be separated, the connecting rod 4021 can be pulled first to slide the retaining bar 4024 into the guide groove 4025, and then the graphite electrode body 1 can be rotated to separate the threaded connector 101 from the threaded connection hole 102, so as to realize the anti-loosening function of the graphite electrode assembly.

[0030] Working principle: When in use, the side of the graphite electrode body 1 can be protected by the action of the silicon nitride ceramic 2021 and the hafnium carbide coating 2022, so that the side of the graphite electrode body 1 is not easily oxidized by contact with air. The anti-oxidation component 202 can be protected by the protective sheath 201 to realize the anti-oxidation function of the graphite electrode assembly, thereby extending the service life of the graphite electrode assembly.

[0031] Then the hafnium carbide coating 2022 can be put on the surface of the threaded connector 101, and the graphite electrode body 1 can be connected and fixed under the threaded cooperation between the threaded connector 101 and the threaded connection hole 102. At this time, the threaded connector 101 squeezes the stopper 4024, causing the stopper 4024 to gradually shrink into the guide groove 4025. When the threaded connector 101 and the threaded connection hole 102 are screwed and tightened, the threaded connection hole 102 and the stopper 4024 are staggered. Since the diameter of the connecting column 401 is smaller than the diameter of the threaded connector 101, the stopper 4024 is stretched. Under the action of spring 4023, it moves to the intersection of the connecting column 401 and the threaded connector 101, blocking and limiting the threaded connector 101, so that the threaded connector 101 is not easy to loosen. If the threaded connector 101 and the threaded connection hole 102 need to be separated, the connecting rod 4021 can be pulled first to slide the blocking bar 4024 into the guide groove 4025, and then the graphite electrode body 1 is rotated to separate the threaded connector 101 from the threaded connection hole 102, so as to realize the anti-loosening function of the graphite electrode assembly, thereby avoiding the phenomenon of loosening of the graphite electrode assembly during use.

[0032] Subsequently, cold air can be introduced into the heat dissipation hole 3021 through the air inlet 3023 to dissipate heat for the graphite electrode body 1, and the heat conduction speed of the graphite electrode body 1 can be accelerated under the action of the heat conduction tube 3022. At the same time, under the action of the heat dissipation component 302, the current can be evenly guided to the periphery of the graphite electrode body 1 to prevent the current from concentrating inside the graphite electrode body 1 and causing the internal temperature of the electrode to be too high, so as to realize the efficient heat dissipation function of the graphite electrode assembly, thereby improving the heat dissipation effect of the graphite electrode assembly during use, and finally completing the use of the graphite electrode assembly.

[0033] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A graphite electrode assembly, comprising a graphite electrode body (1), characterized in that: A threaded connector (101) is arranged above the graphite electrode body (1), a threaded connection hole (102) is provided at the bottom of the graphite electrode body (1), the threaded connection hole (102) and the threaded connector (101) are threadedly matched with each other, an anti-oxidation mechanism (2) is arranged on the outside of the graphite electrode body (1), the anti-oxidation mechanism (2) is composed of a protective sheath (201) and an anti-oxidation component (202), a heat dissipation mechanism (3) is arranged on the surface of the graphite electrode body (1), the heat dissipation mechanism (3) includes an iron core (301) and a heat dissipation component (302), the threaded connector (101) and the threaded connection hole (102) are detachably connected via an anti-slip mechanism (4), the anti-slip mechanism (4) is composed of a connecting column (401) and an anti-slip component (402).

2. A graphite electrode assembly according to claim 1, characterized in that: An anti-oxidation component (202) is arranged on the outside of the graphite electrode body (1), and a protective sheath (201) is adhered to the surface of the anti-oxidation component (202).

3. A graphite electrode assembly according to claim 2, characterized in that: The anti-oxidation component (202) is provided with silicon nitride ceramic (2021) and hafnium carbide coating (2022) inside, the surface of the threaded connector (101) is coated with hafnium carbide coating (2022), the surface of the hafnium carbide coating (2022) is adhered with silicon nitride ceramic (2021), and the surface of the silicon nitride ceramic (2021) is bonded and fixed to the surface of the protective sheath (201).

4. A graphite electrode assembly according to claim 1, characterized in that: An iron core (301) is embedded in the interior of the graphite electrode body (1) along the circumferential direction, and a heat dissipation component (302) is provided at the center of the graphite electrode body (1).

5. A graphite electrode assembly according to claim 4, characterized in that: The heat dissipation component (302) is composed of a heat dissipation center hole (3021), a heat-conducting tube (3022) and an air inlet hole (3023). The heat dissipation center hole (3021) is provided at the center position inside the graphite electrode body (1), and the two ends of the heat dissipation center hole (3021) extend to the inside of the threaded connection head (101) and the threaded connection hole (102), respectively.

6. A graphite electrode assembly according to claim 5, characterized in that: A heat-conducting tube (3022) is fixed to the inner wall of the heat dissipation center hole (3021), an air inlet hole (3023) is fixed inside the heat dissipation center hole (3021), and one end of the air inlet hole (3023) extends to the outside of the threaded connector (101).

7. A graphite electrode assembly according to claim 1, characterized in that: A connecting column (401) is fixed at the bottom of the threaded connector (101), the diameter of the connecting column (401) is smaller than the diameter of the threaded connector (101), and an anti-slip component (402) is provided on one side of the threaded connection hole (102).

8. A graphite electrode assembly according to claim 7, characterized in that: The interior of the anti-slip component (402) includes a connecting rod (4021), a fixing ring (4022), a stretching spring (4023), a baffle (4024) and a guide groove (4025); a fixing ring (4022) is fixed to the bottom of the graphite electrode body (1); guide grooves (4025) are provided on both sides of the fixing ring (4022); a baffle (4024) is slidably provided inside the guide groove (4025); one end of the baffle (4024) is an inclined structure; the surface of the baffle (4024) is tightly fitted with the surface of the threaded connector (101) and the surface of the connecting column (401), respectively.

9. A graphite electrode assembly according to claim 8, characterized in that: A connecting rod (4021) is provided on the surface of the fixing ring (4022), one end of the connecting rod (4021) passes through the fixing ring (4022) and is fixedly connected to the surface of the blocking bar (4024), and an extension spring (4023) is sleeved on the surface of the connecting rod (4021), one end of the extension spring (4023) is fixedly connected to the surface of the fixing ring (4022).

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