Electric arc furnace for producing compact corundum

Abstract

The electric arc furnace for producing the compact corundum comprises a bottom plate and a furnace body installed above the bottom plate, a furnace cover is installed on the top of the furnace body, an electrode stretching into the furnace body is installed on the furnace cover, and the upper surface of the bottom plate is connected with the bottom of the furnace body through an angle adjusting assembly; a stirring and scraping assembly is arranged in the furnace body; a discharging port is formed in the lower portion of the side wall of the furnace body, a discharging assembly is installed at the discharging port and comprises a top supporting frame and a discharging hopper communicating with the lower portion of the top supporting frame, the top of the top supporting frame and the side, facing the furnace body, of the top supporting frame are open, a sealing plate is arranged in the top supporting frame, and a driving assembly is installed on the side wall of the top supporting frame. The driving assembly can drive the sealing plate to move in the length direction of the top supporting frame, and opening and closing of the furnace body discharging opening are achieved. The feeding device has the advantages of being even in heating, convenient to feed and the like.

Description

Technical Field

[0001] This application relates to the field of corundum production equipment, and more particularly to an electric arc furnace for producing dense corundum. Background Technology

[0002] Dense corundum, as an important refractory material, has wide applications in many industrial fields such as steel, non-ferrous metallurgy, and ceramics. Its production process places extremely high demands on equipment, and traditional electric arc furnaces have several shortcomings in producing dense corundum. Firstly, during the smelting process, uneven heating of the material inside the furnace can easily lead to incomplete reactions in certain areas, affecting the consistency of dense corundum quality and causing significant fluctuations in the finished product's performance. This fails to meet the stringent requirements for corundum quality stability in some high-end industrial applications. Secondly, existing electric arc furnaces are inconvenient to operate, with poor sealing at the discharge port. This not only easily causes material leakage during discharge, polluting the working environment, but also allows air to enter the furnace, affecting the furnace atmosphere and interfering with the formation reaction of dense corundum, thus reducing product purity. Furthermore, material easily adheres to the furnace walls, and as the production process continues, the deposited layer thickens, reducing heat transfer efficiency, increasing energy consumption, reducing the effective furnace volume, lowering production efficiency, and making cleaning the furnace walls extremely tedious, time-consuming, and labor-intensive. Therefore, there is an urgent need for an improved electric arc furnace to overcome these problems in order to improve the production efficiency, quality, and environmental friendliness of dense corundum. Utility Model Content

[0003] This utility model addresses the aforementioned problems in the existing technology by providing an electric arc furnace for producing dense corundum.

[0004] The objective of this utility model is mainly achieved through the following solution:

[0005] An electric arc furnace for producing dense corundum includes a base plate and a furnace body mounted on the base plate. A furnace cover is mounted on the top of the furnace body, and an electrode extending into the furnace body is mounted on the furnace cover. The upper surface of the base plate is connected to the bottom of the furnace body via an angle adjustment assembly.

[0006] The furnace body is equipped with a stirring and scraping assembly;

[0007] The lower part of the side wall of the furnace body is provided with a discharge port, and a feeding assembly is installed at the discharge port. The feeding assembly includes a top support frame and a feeding hopper connected to the lower part of the top support frame. The top of the top support frame and the side facing the furnace body are both open, and a sealing plate is provided inside the top support frame. A driving assembly is installed on the side wall of the top support frame. The driving assembly can drive the sealing plate to move along the length direction of the top support frame and realize the opening and closing of the furnace body discharge port.

[0008] Preferably, support columns are fixedly connected to both sides of the bottom of the furnace body. The angle adjustment assembly includes a first telescopic member and a first connecting rod. The fixed end of the first telescopic member is fixedly connected to the upper surface of the base plate. The telescopic end of the first telescopic member is rotatably connected to one end of the first connecting rod. The other end of the first connecting rod is rotatably connected to the bottom of one side support column. Support blocks are provided at the bottom of both support columns. The support column on the other side is rotatably connected to the support block below it. The support column connected to the first connecting rod abuts against the upper surface of the support block below it.

[0009] Preferably, the fixed end of the first telescopic member faces the unloading assembly.

[0010] Preferably, the stirring and scraping assembly includes a drive motor installed at the bottom of the furnace body. The output shaft of the drive motor passes through the furnace body and is fixedly connected to the stirring shaft. The side wall of the stirring shaft is provided with a stirring plate and a scraping plate. The side wall of the scraping plate is in contact with the inner wall of the furnace body.

[0011] Preferably, the drive assembly includes a second telescopic member, which is installed on the side wall of the top support frame. The telescopic end of the second telescopic member passes through the side wall of the top support frame and connects to the side wall of the sealing plate. A fixing rod is connected to the top of the sealing plate, and rollers are rotatably connected to both ends of the fixing rod. Tracks are installed on both sides of the upper surface of the top support frame at positions corresponding to the rollers. A through groove is formed on the upper surface of the track along the length of the top support frame, and the rollers can roll along the through groove.

[0012] In summary, compared with the prior art, the present invention has the following beneficial technical effects:

[0013] (1) Through the cooperation of the first telescopic component and the first connecting rod, this utility model can conveniently adjust the furnace body angle. During the production process, the furnace body tilt can be changed in a timely manner according to the material reaction requirements, so that the material is heated more evenly, effectively promotes the full reaction of the material, improves the stability of the quality of dense corundum products, reduces the defect rate caused by uneven heating, ensures that the performance of each batch of products is highly consistent, and meets the stringent standards of high-end industrial applications. On the other hand, it can also change the tilt angle of the furnace body when discharging materials, which is convenient for discharging materials.

[0014] (2) In this utility model, the drive motor drives the stirring shaft to rotate, and the stirring plate fully stirs the material to avoid material agglomeration, accelerate the reaction process, and ensure reaction uniformity. At the same time, the scraping plate rotates close to the inner wall of the furnace to clean the material attached to the furnace wall in real time, maintain the cleanliness of the furnace wall, not only ensure heat transfer efficiency and reduce energy consumption, but also maintain the effective volume of the furnace body, reduce downtime caused by furnace cleaning, improve overall production continuity, and further increase production capacity.

[0015] (3) In this utility model, the drive component controls the movement of the sealing plate to realize the rapid opening and tight closing of the discharge port. When it is opened, the material falls smoothly into the hopper and is discharged. When it is closed, the sealing plate is tightly fitted with the edge of the discharge port to ensure good sealing inside the furnace and effectively prevent material leakage and external air intrusion. This avoids material waste and environmental pollution, maintains a stable reaction atmosphere inside the furnace, ensures the smooth progress of the dense corundum generation reaction, and improves product purity. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is the front view of this utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the top support frame in this utility model;

[0019] Figure 4 This is a schematic diagram of the stirring and scraping component in this utility model.

[0020] Reference numerals: 1-bottom plate, 2-furnace body, 3-furnace cover, 4-electrode, 5-discharge port, 6-top support frame, 7-feeding hopper, 8-sealing plate, 9-support column, 10-first telescopic component, 11-first connecting rod, 12-support block, 13-drive motor, 14-stirring shaft, 15-stirring plate, 16-scraper plate, 17-second telescopic component, 18-fixed rod, 19-roller, 20-track, 21-through groove. Detailed Implementation

[0021] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings. It should be understood that the implementation of this utility model is not limited to the following embodiments, and any modifications and / or alterations made to this utility model will fall within the protection scope of this utility model.

[0022] Example 1:

[0023] like Figure 1 , 2 As shown, this utility model discloses a technical solution for an electric arc furnace for producing dense corundum, including a bottom plate 1 and a furnace body 2 installed above the bottom plate 1. The top of the furnace body 2 is sealed with a furnace cover 3 by bolts, and an electrode 4 extending into the furnace body 2 is installed on the furnace cover 3. The electrode 4 heats the corundum material inside the furnace body 2. The heating method is existing technology and will not be described in detail here.

[0024] The upper surface of the aforementioned base plate 1 is connected to the bottom of the furnace body 2 via an angle adjustment component, which allows for adjustment of the angle of the furnace body 2 and facilitates material feeding.

[0025] The furnace body 2 is equipped with a stirring and scraping component, which can accelerate the reaction process, ensure reaction uniformity, clean the material adhering to the furnace wall in real time, maintain the cleanliness of the furnace wall, ensure heat transfer efficiency, reduce energy consumption, and always maintain the effective volume of the furnace body 2.

[0026] The furnace body 2 has a discharge port 5 on the lower part of its side wall, and a feeding assembly is installed at the discharge port 5. The feeding assembly includes a top support frame 6 and a feeding hopper 7 connected to the lower part of the top support frame 6. The top of the top support frame 6 and the side facing the furnace body 2 are both open. The top support frame 6 is welded or bolted to the side wall of the furnace body 2. A sealing plate 8 is provided inside the top support frame 6. A driving assembly is installed on the side wall of the top support frame 6. The driving assembly can drive the sealing plate 8 to move along the length of the top support frame 6 and realize the opening and closing of the discharge port 5 of the furnace body 2.

[0027] Example 2:

[0028] like Figure 1 , 2 As shown, this utility model discloses another technical solution: an electric arc furnace for producing dense corundum. The difference from Embodiment 1 is that support columns 9 are fixedly connected to both sides of the bottom of the furnace body 2. The angle adjustment assembly includes a first telescopic member 10 and a first connecting rod 11. The fixed end of the first telescopic member 10 is fixedly connected to the upper surface of the base plate 1 by bolts. The telescopic end of the first telescopic member 10 is rotatably connected to one end of the first connecting rod 11 via a rotating shaft. The other end of the first connecting rod 11 is rotatably connected to the bottom of the left support column 9 via a rotating shaft. Support blocks 12 are installed on the upper surface of the base plate 1 at the bottom of both support columns 9. The right support column 9 is rotatably connected to the support block 12 below it, and the left support column 9 abuts against the upper surface of the support block 12 below it. The fixed end of the first telescopic member 10 faces the material feeding assembly. When the first telescopic member 10 extends, under the action of the first connecting rod 11, the furnace body 2 can tilt towards the material feeding assembly for convenient material feeding.

[0029] Example 3:

[0030] like Figure 4As shown, this utility model discloses another technical solution: an electric arc furnace for producing dense corundum. The difference from embodiment 1 is that the above-mentioned stirring and scraping assembly includes a drive motor 13 installed at the bottom of the furnace body 2. The output shaft of the drive motor 13 passes through the furnace body 2 and is fixedly connected to the stirring shaft 14. The side wall of the stirring shaft 14 is provided with multiple stirring plates 15 and scraping plates 16. The side wall of the scraping plate 16 is in contact with the inner wall of the furnace body 2. When the drive motor 13 is started, it drives the stirring shaft 14 to rotate. The stirring plates 15 thoroughly stir the material to prevent material agglomeration, accelerate the reaction process, and ensure reaction uniformity. At the same time, the scraping plate 16 rotates close to the inner wall of the furnace body 2 to clean the material adhering to the furnace wall in real time and maintain the cleanliness of the furnace wall.

[0031] Example 4:

[0032] like Figure 3 As shown, this utility model discloses another technical solution, an electric arc furnace for producing dense corundum. The difference from embodiment 1 is that the above-mentioned driving component includes a second telescopic member 17. The second telescopic member 17 is installed on the side wall of the top support frame 6, and the telescopic end of the second telescopic member 17 passes through the side wall of the top support frame 6 and is fixedly connected to the side wall of the sealing plate 8. The top of the sealing plate 8 is fixedly connected to a fixing rod 18 by bolts. Rollers 19 are rotatably connected to both ends of the fixing rod 18. Tracks 20 are fixedly installed on both sides of the upper surface of the top support frame 6 at positions corresponding to the rollers 19 by bolts. The upper surface of the track 20 is provided with a through groove 21 along the length direction of the top support frame 6. The rollers 19 can roll along the through groove 21 to facilitate the stable movement of the sealing plate 8.

[0033] The first and second telescopic components mentioned above can be push rod motors, and both the push rod motor and the drive motor are electrically connected to the PLC controller and powered by mains power. The specific circuit connection method is not within the protection scope of this application and will not be described here.

[0034] The electric arc furnace for producing dense corundum provided by this utility model involves feeding raw materials into the furnace body according to the specified ratio, closing the furnace lid, and starting the electrodes to begin heating. As the reaction proceeds, the drive motor runs continuously, and the stirring shaft drives the stirring plate and scraper plate. The stirring plate performs high-intensity stirring of the material, while the scraper plate thoroughly removes any adhering substances from the furnace wall, ensuring the furnace wall remains clean at all times. When the reaction is nearing completion and discharge is required, the second telescopic component is activated, pushing the sealing plate along the track to open the discharge port. The material is then discharged orderly through the hopper under gravity. At this point, the discharge can be accelerated by controlling the extension and retraction of the first telescopic component in conjunction with the first connecting rod to adjust the furnace body angle. The discharge process is smooth and efficient, without blockages or leaks. Furthermore, if uneven heating of the material is detected, the heating state of the material can also be rapidly improved by controlling the extension and retraction of the first telescopic component in conjunction with the first connecting rod to adjust the furnace body angle, ultimately producing high-quality, stable, dense corundum products.

[0035] In summary, the electric arc furnace for producing dense corundum of this application effectively solves many problems faced by traditional electric arc furnaces in producing dense corundum through the coordinated work of its components. It can bring huge economic and environmental benefits to the dense corundum industry and is worthy of promotion and use.

[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An electric arc furnace for producing dense corundum, comprising a base plate (1) and a furnace body (2) mounted above the base plate (1), wherein a furnace cover (3) is mounted on the top of the furnace body (2), and an electrode (4) extending into the furnace body (2) is mounted on the furnace cover (3), characterized in that: The upper surface of the base plate (1) is connected to the bottom of the furnace body (2) through an angle adjustment assembly; The furnace body (2) is equipped with a stirring and scraping assembly inside; The lower part of the side wall of the furnace body (2) is provided with a discharge port (5), and a feeding assembly is installed at the discharge port (5). The feeding assembly includes a top support frame (6) and a feeding hopper (7) connected to the lower part of the top support frame (6). The top of the top support frame (6) and the side facing the furnace body (2) are both open, and a sealing plate (8) is provided inside the top support frame (6). A driving assembly is installed on the side wall of the top support frame (6). The driving assembly can drive the sealing plate (8) to move along the length direction of the top support frame (6) and realize the opening and closing of the discharge port (5) of the furnace body (2).

2. The electric arc furnace for producing dense corundum according to claim 1, characterized in that: The bottom sides of the furnace body (2) are fixedly connected with support columns (9). The angle adjustment assembly includes a first telescopic component (10) and a first connecting rod (11). The fixed end of the first telescopic component (10) is fixedly connected to the upper surface of the base plate (1). The telescopic end of the first telescopic component (10) is rotatably connected to one end of the first connecting rod (11). The other end of the first connecting rod (11) is rotatably connected to the bottom of one side support column (9). The bottom of both sides support columns (9) is provided with support blocks (12). The other side support column (9) is rotatably connected to the support block (12) below it. The support column (9) connected to the first connecting rod (11) abuts against the upper surface of the support block (12) below it.

3. The electric arc furnace for producing dense corundum according to claim 2, characterized in that: The fixed end of the first telescopic member (10) faces the unloading assembly.

4. The electric arc furnace for producing dense corundum according to claim 1, characterized in that: The stirring and scraping assembly includes a drive motor (13) installed at the bottom of the furnace body (2). The output shaft of the drive motor (13) passes through the furnace body (2) and is fixedly connected to the stirring shaft (14). The side wall of the stirring shaft (14) is provided with a stirring plate (15) and a scraping plate (16). The side wall of the scraping plate (16) is in contact with the inner wall of the furnace body (2).

5. The electric arc furnace for producing dense corundum according to claim 1, characterized in that: The drive assembly includes a second telescopic member (17), which is installed on the side wall of the top support frame (6). The telescopic end of the second telescopic member (17) passes through the side wall of the top support frame (6) and is connected to the side wall of the sealing plate (8). A fixing rod (18) is connected to the top of the sealing plate (8). Rollers (19) are rotatably connected to both ends of the fixing rod (18). Tracks (20) are installed on both sides of the upper surface of the top support frame (6) at positions corresponding to the rollers (19). A through groove (21) is opened on the upper surface of the track (20) along the length direction of the top support frame (6). The rollers (19) can roll along the through groove (21).

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