Electrode column of electric arc furnace

Abstract

The utility model relates to the technical field of electric arc furnaces, in particular to an electrode column of an electric arc furnace, which comprises a main body, a dismounting assembly is arranged on the side surface of the main body, and an extension assembly is arranged on the side surface of the dismounting assembly; the threaded rod penetrates through the penetrating hole to be in threaded connection with the threaded sleeve, fastening and dismounting of parts can be achieved through connection of the threaded structure, the stability and safety of connection are guaranteed through a self-locking mechanism of the threaded rod, the threaded structure provides high mechanical stability, and the threaded rod is not prone to falling off. The connector can face external force such as vibration and impact to be kept firm, the extension mechanism composed of the extension plate, the movable pin rod, the ejector block and the fastener is used for extending the electrode column in the electric arc furnace outwards, the use range of the connector is widened, meanwhile, the electrode column in the electric arc furnace can keep a safe distance from other parts, and the safety of the electric arc furnace is improved. And the service life of the electric arc furnace is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of electric arc furnaces, in particular to an electrode column of an electric arc furnace. Background Technique

[0002] An electric arc furnace uses the high temperature generated by an electrode arc to smelt ores and metals. When a gas discharge forms an arc, the energy is very concentrated, and the temperature in the arc area is above 3000 °C. For smelting metals, the electric arc furnace has greater process flexibility than other steelmaking furnaces, can effectively remove impurities such as sulfur and phosphorus, the furnace temperature is easy to control, the equipment occupies a small area, and is suitable for the smelting of high-quality alloy steel. An industrial furnace that generates an arc through a metal electrode or a non-metal electrode is called an electric arc furnace. Electric arc furnaces can be divided into three-phase arc furnaces, consumable arc furnaces, single-phase arc furnaces, resistance arc furnaces and other types according to the arc form. The furnace body of an electric arc steelmaking furnace consists of a furnace cover, a furnace door, a tapping trough and a furnace body. The furnace bottom and furnace walls are lined with basic refractory materials or acidic refractory materials. Electric arc steelmaking furnaces are divided into ordinary power electric arc furnaces, high power electric arc furnaces and ultra-high power electric arc furnaces according to the capacity of the transformer equipped per ton of furnace capacity. Electric arc furnace steelmaking inputs electric energy into the electric arc steelmaking furnace through graphite electrodes, and uses the arc generated between the electrode end and the furnace charge as the heat source for steelmaking. The electric arc furnace uses electric energy as the heat source, can adjust the furnace atmosphere, and is extremely beneficial to smelting steel grades containing more easily oxidized elements. Soon after the invention of electric arc furnace steelmaking, it was used for smelting alloy steel and has obtained great development.

[0003] The technological process of electric arc furnace steelmaking is short, the equipment is simple, the operation is convenient, it is relatively easy to control pollution, the construction investment is small, the floor area is small, and it does not need to rely on a huge ironmaking system like converter steelmaking. Electric arc furnace steelmaking has strong adaptability to furnace charges. It mainly uses scrap steel as raw materials, but can also use solid and liquid iron-containing raw materials such as hot metal, sponge iron or hot briquettes, and pig iron blocks. Because the atmosphere in the electric arc furnace steelmaking furnace is controllable, the operation of adjusting or replacing the furnace slag is relatively easy, and the complex process operations of melting, decarburization, dephosphorization, degassing, inclusion removal, temperature control, and composition adjustment can be completed in the same operating system. Electric arc furnace steelmaking can be produced intermittently and can flexibly change the product variety within a certain range. In addition, modern electric arc furnaces can also use a large amount of auxiliary energy sources, such as injecting heavy oil, pulverized coal, natural gas, etc. Therefore, the electric arc furnace steelmaking process has strong adaptability, flexible operation and wide application.

[0004] Although electric arc furnace steelmaking has many advantages, due to the current problems of scrap steel and electricity price costs in China, electric arc furnace steelmaking cannot compete with converter steelmaking in the production of common steel and long-line products. Electric arc furnace steelmaking only occupies a dominant position in the production field of special steel with small batches, multiple varieties and high alloy ratios.

[0005] At present, some short-process electric furnace production enterprises internationally generally use electric arc furnaces with high output power. Moreover, the classic three-stage operation process with a traditional reduction period has gradually been replaced by combined process technologies such as secondary refining, and the electric arc furnace and its public auxiliary facilities and equipment have also become more perfect and reasonable. The proportion of electric furnace steel production in the world is increasing year by year. China is a developing country. Infrastructure construction has just started, and the large-scale scrap steel recovery period has not yet arrived. In addition, the development of electricity in China is unbalanced, and the current electricity price is still at a relatively high level.

[0006] At present, the disassembly of the internal electrode column of the electric arc furnace is inconvenient, which is not conducive to replacement and maintenance, resulting in a serious impact on the working efficiency of the electric arc furnace. In addition, the fixing device of the electrode column is inconvenient to move and expand, resulting in narrow space utilization and reducing the applicable range of the internal electrode column of the electric arc furnace. Therefore, an electrode column for an electric arc furnace is needed to improve the above problems. Summary of the Utility Model

[0007] In order to solve the problems that the disassembly of the internal electrode column of the current electric arc furnace is inconvenient, which is not conducive to replacement and maintenance, resulting in a serious impact on the working efficiency of the electric arc furnace, and the fixing device of the electrode column is inconvenient to move and expand, resulting in narrow space utilization and reducing the applicable range of the internal electrode column of the electric arc furnace, the purpose of the present utility model is to provide an electrode column for an electric arc furnace to solve the problems raised in the above background technology.

[0008] To achieve the above object, the present utility model provides the following technical solutions:

[0009] An electrode column for an electric arc furnace, comprising a main body, a disassembly and assembly component is arranged on the side of the main body, and an extension component is arranged on the side of the disassembly and assembly component;

[0010] The main body includes an electrode column body, a top plate is fixedly connected to the top of the electrode column body, and a through hole is opened in the top plate;

[0011] The disassembly and assembly component includes a cross arm, a blocking block is fixedly connected to the side of the cross arm, a threaded sleeve is fixedly connected to the side of the blocking block, and a threaded rod is threadedly connected to the top of the threaded sleeve;

[0012] The extension component includes an extension plate, a movable pin rod is arranged on the top of the extension plate, and a top block is fixedly connected to the top of the movable pin rod.

[0013] As a preferred scheme of the present utility model, a base is fixedly connected to the bottom of the electrode column body, and four through holes are opened.

[0014] As a preferred scheme of the present utility model, four threaded rods are provided, and the threaded rods are arranged on the top of the through holes.

[0015] As a preferred embodiment of the present utility model, four cross arms, barrier blocks and threaded sleeves are provided.

[0016] As a preferred embodiment of the present utility model, the movable pin rod extends into the interior of the cross arm, and four movable pin rods and top blocks are provided.

[0017] As a preferred embodiment of the present utility model, a fastener is fixedly connected to the bottom of the extension plate, and four extension plates and fasteners are provided.

[0018] As a preferred embodiment of the present utility model, a support rod is fixedly connected to the bottom of the fastener, and four support rods are provided.

[0019] As a preferred embodiment of the present utility model, a chassis is fixedly connected to the bottom of the support rod, and four chassis are provided.

[0020] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0021] 1. In the present utility model, by threading the threaded rod through the through hole to threadedly connect the threaded rod with the threaded sleeve, and through the threaded connection structure, the fastening and disassembly of components can be realized, and its self-locking mechanism ensures the stability and safety of the connection. The threaded structure provides strong mechanical stability, enabling the connector to remain firm in the face of external forces such as vibration and impact.

[0022] 2. In the present utility model, by using the extension mechanism composed of an extension plate, a movable pin rod, a top block and a fastener, the electrode column inside the electric arc furnace can be extended outwards, which not only increases its scope of use, but also enables the electrode column inside the electric arc furnace to maintain a safe distance from other components, thereby increasing the service life of the electric arc furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0024] Figure 2 is a schematic diagram of the electrode column structure of the present utility model;

[0025] Figure 3 is a schematic diagram of the disassembly and assembly component structure of the present utility model;

[0026] Figure 4 is a schematic diagram of the extension component structure of the present utility model.

[0027] In the figure: 1. Main body; 101. Electrode column; 102. Base; 103. Top plate; 104. Perforation; 2. Disassembly and assembly component; 201. Cross arm; 202. Blocking block; 203. Threaded sleeve; 204. Threaded rod; 3. Extension component; 301. Extension plate; 302. Movable pin rod; 303. Top block; 304. Fastener; 305. Support rod; 306. Chassis. Detailed implementation mode

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

[0029] Embodiment: Please refer to Figures 1-4 An electrode column of an arc furnace shown, which includes a main body 1, a disassembly and assembly component 2 is arranged on the side of the main body 1, and an extension component 3 is arranged on the side of the disassembly and assembly component 2;

[0030] In this embodiment, referring to Figure 1 、 Figure 3 And Figure 4 Shown, the main body 1 includes an electrode column 101, a top plate 103 is fixedly connected to the top of the electrode column 101, a perforation 104 is opened inside the top plate 103, the disassembly and assembly component 2 includes a cross arm 201, a blocking block 202 is fixedly connected to the side of the cross arm 201, a threaded sleeve 203 is fixedly connected to the side of the blocking block 202, a threaded rod 204 is threadedly connected to the top of the threaded sleeve 203, the extension component 3 includes an extension plate 301, a movable pin rod 302 is arranged on the top of the extension plate 301, a top block 303 is fixedly connected to the top of the movable pin rod 302, the threaded rod 204 passes through the perforation 104 to threadedly connect the threaded rod 204 with the threaded sleeve 203, and through the threaded connection, the fastening and disassembly of the components can be realized, and its self-locking mechanism ensures the stability and safety of the connection. The threaded structure provides strong mechanical stability, enabling the connector to remain firm in the face of external forces such as vibration and impact.

[0031] In this embodiment, referring to Figure 1 、 Figure 2 And Figure 4As shown in the figure, a base 102 is fixedly connected to the bottom of the electrode column body 101. Four perforations 104 are provided, and four threaded rods 204 are provided. The threaded rods 204 are arranged at the top of the perforations 104. Four cross arms 201, blocking blocks 202 and threaded sleeves 203 are provided. The movable pin rods 302 extend into the interior of the cross arms 201. Four movable pin rods 302 and top blocks 303 are provided. A fastener 304 is fixedly connected to the bottom of the extension plate 301. Four extension plates 301 and fasteners 304 are provided. The bottom of the fastener 304 is fixedly connected to a support rod 305. Four support rods 305 are provided. The bottom of the support rod 305 is fixedly connected to a chassis 306. Four chassis 306 are provided. The extension mechanism composed of the extension plate 301, the movable pin rod 302, the top block 303 and the fastener 304 can extend the electrode column inside the electric arc furnace outward, not only increasing its scope of use, but also enabling the electrode column inside the electric arc furnace to maintain a safe distance from other components, thereby increasing the service life of the electric arc furnace.

[0032] In this solution, when the electrode column of an electric arc furnace is in use and the electrode column inside the electric arc furnace needs to be removed and replaced, the threaded rod 204 can be screwed out from the inside of the threaded sleeve 203, and then the electrode column body 101 can be disassembled, which has the advantages of facilitating disassembly, replacement and maintenance. When the electrode column inside the electric arc furnace needs to be extended externally, the extension mechanism composed of the extension plate 301, the movable pin rod 302, the top block 303 and the fastener 304 can extend the electrode column inside the electric arc furnace outward, so that the electrode column body 101 can maintain a safe distance from other components, and maintaining a gap can increase the use safety.

[0033] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electrode column of an electric arc furnace, comprising a main body (1), characterized in that: A disassembly and assembly component (2) is provided on the side of the main body (1), and an extension component (3) is provided on the side of the disassembly and assembly component (2); The main body (1) includes an electrode cylinder (101), a top plate (103) is fixedly connected to the top of the electrode cylinder (101), and a through hole (104) is formed inside the top plate (103); The disassembly and assembly component (2) includes a cross arm (201), a blocking block (202) is fixedly connected to the side of the cross arm (201), a threaded sleeve (203) is fixedly connected to the side of the blocking block (202), and a threaded rod (204) is threadedly connected to the top of the threaded sleeve (203); The extension component (3) includes an extension plate (301), a movable pin rod (302) is provided on the top of the extension plate (301), and a top block (303) is fixedly connected to the top of the movable pin rod (302).

2. The electrode column of an electric arc furnace according to claim 1, wherein: A base (102) is fixedly connected to the bottom of the electrode cylinder (101), and four through holes (104) are formed.

3. The electrode column of an electric arc furnace according to claim 1, characterized in that: Four threaded rods (204) are provided, and the threaded rods (204) are arranged on the top of the through holes (104).

4. An electrode post of an electric arc furnace according to claim 1, characterized in that: Four cross arms (201), blocking blocks (202) and threaded sleeves (203) are provided.

5. The electrode column of an electric arc furnace according to claim 1, characterized in that: The movable pin rod (302) extends into the cross arm (201), and four movable pin rods (302) and top blocks (303) are provided.

6. The electrode column of an electric arc furnace according to claim 1, wherein: A fastener (304) is fixedly connected to the bottom of the extension plate (301), and four extension plates (301) and fasteners (304) are provided.

7. An electrode column of an electric arc furnace according to claim 6, characterized in that: A support rod (305) is fixedly connected to the bottom of the fastener (304), and four support rods (305) are provided.

8. The electrode column of an electric arc furnace according to claim 7, characterized in that: A chassis (306) is fixedly connected to the bottom of the support rod (305), and four chassis (306) are provided.

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