Electric arc furnace dumping device

Abstract

The utility model discloses an electric arc furnace dumping device which comprises a U-shaped frame, the outer wall of the U-shaped frame is rotatably connected with two center shafts, the other ends of the two center shafts are fixedly connected with the same electric arc furnace body, the outer wall of the electric arc furnace body is fixedly connected with two arc-shaped plates, the outer wall of the U-shaped frame is fixedly connected with two circular shafts, and the two circular shafts are fixedly connected with two arc-shaped plates. The outer wall of each circular shaft is fixedly sleeved with two guide wheels. The electric arc furnace body is driven by the first hydraulic oil cylinder to stably rotate around the double center shafts, the arc-shaped plate is accurately supported and guided through the four guide wheels, and it is guaranteed that the dumping process is stable and free of shaking; the second hydraulic oil cylinder accurately controls the opening and closing time of the furnace door, so that the V-shaped guide groove and the discharge port form coordinated action, smooth and controllable outflow of molten metal is realized, the problem of eccentric torque caused by traditional single-side driving is effectively solved, and the dumping stability and the discharge efficiency are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of electric arc furnace technology, and in particular to an electric arc furnace tilting device. Background Technology

[0002] An electric arc furnace is an industrial device used for metal smelting, particularly in steel production. It melts metal materials using the high temperatures generated by an electric arc, and is commonly used for the recycling and reuse of scrap steel, thereby reducing the demand for raw materials and minimizing environmental pollution. The core working principle of an electric arc furnace is to generate high temperatures through an electric arc between electrodes and the molten pool, melting metal materials (such as scrap steel) and causing a chemical reaction. An electric arc furnace typically consists of a cylindrical furnace body filled with molten metal.

[0003] In existing technologies, traditional electric arc furnaces rely solely on a single-sided hydraulic cylinder to drive the furnace body to rotate. During the tilting process, eccentric torque is easily generated, causing the furnace body to shake or vibrate, affecting the smooth flow of molten metal, and may even cause deformation of the furnace body structure. Therefore, we propose an electric arc furnace tilting device to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose an electric arc furnace tilting device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An electric arc furnace tilting device includes a U-shaped frame. Two central shafts are rotatably connected to the outer wall of the U-shaped frame. The other ends of the two central shafts are fixedly connected to the same electric arc furnace body. Two arc-shaped plates are fixedly connected to the outer wall of the electric arc furnace body. Two round shafts are fixedly connected to the outer wall of the U-shaped frame. Two guide wheels are fixedly sleeved on the outer walls of the two round shafts. A connecting shaft is fixedly connected to the outer wall of the U-shaped frame. A first hydraulic cylinder is rotatably sleeved on the outer wall of the connecting shaft. An ear plate is rotatably sleeved on the output end of the first hydraulic cylinder. One end of the ear plate is fixedly connected to the outer wall of the electric arc furnace body. A discharge assembly is provided on the outer wall of the electric arc furnace body.

[0007] Preferably, the discharge assembly includes a second hydraulic cylinder, the outer wall of the electric arc furnace body is fixedly connected to the outer wall of the second hydraulic cylinder, the bottom of the output end of the second hydraulic cylinder is fixedly connected to a furnace door, and the outer wall of the electric arc furnace body is fixedly connected to a V-shaped material guide groove. The liquid metal inside the electric arc furnace body is poured out by setting the discharge assembly.

[0008] Preferably, two bearings are fixedly embedded in the outer wall of the U-shaped frame, and the inner rings of the two bearings are respectively fixedly connected to one end of two central shafts, so that the central shafts can be rotated by setting the bearings.

[0009] Preferably, a furnace cover is placed on top of the electric arc furnace body, and multiple electrodes are installed on the outer wall of the furnace cover.

[0010] Preferably, the four guide wheels are slidably connected to the bottom of the two arc plates in pairs, and the electric arc furnace body is rotated by setting the guide wheels and arc plates.

[0011] Preferably, the outer wall of the furnace door is slidably connected to the outer wall of the electric arc furnace body, and a mechanical seal is provided between the furnace door and the electric arc furnace body.

[0012] Preferably, the bottom of the furnace door is located inside the V-shaped feed chute.

[0013] Compared with the prior art, the advantages of this utility model are:

[0014] This design uses a first hydraulic cylinder to drive the electric arc furnace body to rotate stably around a double central axis, while four guide wheels provide precise support and guidance for the arc-shaped plate, ensuring a smooth and undisturbed tilting process. The second hydraulic cylinder precisely controls the opening and closing of the furnace door, enabling the V-shaped guide chute and the discharge port to move in coordination, achieving a smooth and controllable flow of molten metal. This structure effectively solves the eccentric torque problem caused by traditional single-sided drive, significantly improving tilting stability and discharge efficiency, while reducing the risk of equipment vibration and structural deformation, ensuring production safety and extending equipment lifespan. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of an electric arc furnace tilting device proposed in this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of an electric arc furnace tilting device proposed in this utility model;

[0018] Figure 3 This is a rear view schematic diagram of an electric arc furnace tilting device proposed in this utility model.

[0019] In the diagram: 1. U-shaped frame; 2. Central shaft; 3. Bearing; 4. Electric arc furnace body; 5. Furnace cover; 6. Electrode; 7. Arc plate; 8. Round shaft; 9. Guide wheel; 10. Connecting shaft; 11. First hydraulic cylinder; 12. Ear plate; 13. Second hydraulic cylinder; 14. Furnace door; 15. V-shaped guide chute. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. 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; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0022] Depend on Figures 1-3 As shown, an electric arc furnace tilting device is disclosed, comprising a U-shaped frame 1, with two central shafts 2 rotatably connected to the outer wall of the U-shaped frame 1, and two bearings 3 fixedly embedded in the outer wall of the U-shaped frame 1. The inner rings of the two bearings 3 are fixedly connected to one end of the two central shafts 2 respectively, and the other end of the two central shafts 2 is fixedly connected to the same electric arc furnace body 4 (EAF-3T). The electric arc furnace body 4 (EAF-3T) rotates through the two central shafts 2.

[0023] A furnace cover 5 is placed on top of the electric arc furnace body 4 (EAF-3T). Multiple electrodes 6 are installed on the outer wall of the furnace cover 5. Two arc plates 7 are fixedly connected to the outer wall of the electric arc furnace body 4 (EAF-3T). The arc plates 7 are made of wear-resistant steel plates. The two arc plates 7 support the electric arc furnace body 4 (EAF-3T). Two round shafts 8 are fixedly connected to the outer wall of the U-shaped frame 1. Two guide wheels 9 are fixedly fitted on the outer wall of each of the two round shafts 8. The four guide wheels 9 are slidably connected to the bottom of the two arc plates 7 in pairs. The contact surface is coated with a solid lubricant to reduce friction loss.

[0024] A connecting shaft 10 is fixedly connected to the outer wall of the U-shaped frame 1. A first hydraulic cylinder 11 is rotatably sleeved on the outer wall of the connecting shaft 10. The connecting shaft 10 supports the first hydraulic cylinder 11, and the first hydraulic cylinder 11 rotates through the connecting shaft 10. An ear plate 12 is rotatably sleeved on the output end of the first hydraulic cylinder 11. One end of the ear plate 12 is fixedly connected to the outer wall of the electric arc furnace body 4 (EAF-3T). The output end of the first hydraulic cylinder 11 drives the ear plate 12 to rotate with the electric arc furnace body 4 (EAF-3T).

[0025] The outer wall of the electric arc furnace body 4 (EAF-3T) is equipped with a discharge assembly, which includes a second hydraulic cylinder 13. The outer wall of the electric arc furnace body 4 (EAF-3T) is fixedly connected to the outer wall of the second hydraulic cylinder 13. A high-temperature resistant asbestos gasket is installed at the connection. A furnace door 14 is fixedly connected to the bottom of the output end of the second hydraulic cylinder 13. The outer wall of the furnace door 14 is slidably connected to the outer wall of the electric arc furnace body 4 (EAF-3T). The second hydraulic cylinder 13 drives the furnace door 14 to move up and down. A V-shaped guide groove 15 is fixedly interconnected on the outer wall of the electric arc furnace body 4 (EAF-3T). The bottom of the furnace door 14 is located inside the V-shaped guide groove 15.

[0026] Working principle: When the electric arc furnace body 4 is tilted to discharge material in a rectangular shape, the first hydraulic cylinder 11 drives the electric arc furnace body 4 to rotate around the two central axes 2. The rotation of the electric arc furnace body 4 drives the second hydraulic cylinder 13 and the V-shaped guide chute 15 to rotate, forming a tilting effect. During the rotation of the electric arc furnace body 4, the two arc plates 7 are driven to rotate. The two arc plates 7 are located on top of the four guide wheels 9. The four guide wheels 9 support and guide the two arc plates 7. The operation of the second hydraulic cylinder 13 drives the furnace door 14 to move upward. The upward movement of the furnace door 14 exposes the discharge port between the V-shaped guide chute 15 and the electric arc furnace body 4, allowing the molten metal in the electric arc furnace body 4 to flow out through the V-shaped guide chute 15.

[0027] It should be noted that, in actual use, an existing PLC controller can be added. The PLC controller is electrically connected to the first hydraulic cylinder 11 and the second hydraulic cylinder 13 to facilitate the control of the overall operation.

[0028] All standard parts used in this utility model can be purchased from the market. Irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. Furthermore, the structure and principle of the components known to those skilled in the art can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0029] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tilting device for an electric arc furnace, comprising a U-shaped frame (1), characterized in that, The outer wall of the U-shaped frame (1) is rotatably connected to two central shafts (2), and the other end of the two central shafts (2) is fixedly connected to the same electric arc furnace body (4). The outer wall of the electric arc furnace body (4) is fixedly connected to two arc plates (7). The outer wall of the U-shaped frame (1) is fixedly connected to two round shafts (8). The outer walls of the two round shafts (8) are each fixedly fitted with two guide wheels (9). The outer wall of the U-shaped frame (1) is fixedly connected to a connecting shaft (10). The outer wall of the connecting shaft (10) is rotatably fitted with a first hydraulic cylinder (11). The output end of the first hydraulic cylinder (11) is rotatably fitted with an ear plate (12). One end of the ear plate (12) is fixedly connected to the outer wall of the electric arc furnace body (4). The outer wall of the electric arc furnace body (4) is provided with a discharge assembly.

2. The electric arc furnace tilting device according to claim 1, characterized in that, The discharge assembly includes a second hydraulic cylinder (13), the outer wall of the electric arc furnace body (4) is fixedly connected to the outer wall of the second hydraulic cylinder (13), the bottom of the output end of the second hydraulic cylinder (13) is fixedly connected to a furnace door (14), and the outer wall of the electric arc furnace body (4) is fixedly connected to a V-shaped guide groove (15).

3. The electric arc furnace tilting device according to claim 1, characterized in that, Two bearings (3) are fixedly embedded in the outer wall of the U-shaped frame (1), and the inner rings of the two bearings (3) are respectively fixedly connected to one end of the two central shafts (2).

4. The electric arc furnace tilting device according to claim 1, characterized in that, A furnace cover (5) is placed on the top of the electric arc furnace body (4), and multiple electrodes (6) are installed on the outer wall of the furnace cover (5).

5. The electric arc furnace tilting device according to claim 1, characterized in that, The four guide wheels (9) are connected in pairs to the bottom of the two arc plates (7).

6. The electric arc furnace tilting device according to claim 2, characterized in that, The outer wall of the furnace door (14) is slidably connected to the outer wall of the electric arc furnace body (4).

7. The electric arc furnace tilting device according to claim 2, characterized in that, The bottom of the furnace door (14) is located inside the V-shaped feed chute (15).

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