A feeding device for an electric arc furnace

Abstract

This utility model discloses a feeding device for an electric arc furnace, relating to the technical field of electric arc furnace feeding devices. It includes a U-shaped support frame, with a hopper at one end of the support frame. A material trough is fixedly connected to the bottom of the hopper. A rotating shaft is rotatably connected to the inner wall of one end of the U-shaped support frame, and a lead screw is fixedly connected to the end of the rotating shaft. The other end of the lead screw is rotatably connected to the inner wall of the other end of the U-shaped support frame. Guide grooves are provided on both sides of the inner wall of the lead screw on the U-shaped support frame. A moving block is threaded onto the lead screw, and guide rods are fixedly connected to both sides of the moving block. The other end of the guide rod is slidably connected to the inner wall of the guide groove. This utility model can change the angle between the material trough and the hopper, thereby adjusting the height of the feeding pipe. It can adapt to electric arc furnaces of different heights. An auger is installed in the material trough to achieve continuous and stable material conveying, reducing the risk of material blockage compared to traditional gravity feeding or intermittent conveying methods.

Description

Technical Field

[0001] This utility model relates to the technical field of electric arc furnace feeding devices, specifically a feeding device for electric arc furnaces. Background Technology

[0002] In electric arc furnace steelmaking and metal smelting processes, the performance of the charging device directly affects production efficiency and energy consumption. Existing electric arc furnace charging devices have the following shortcomings: First, most devices have a fixed height, making them difficult to adapt to different models and heights of electric arc furnaces. When equipment is replaced or upgraded, the charging equipment needs to be readjusted or additional auxiliary facilities need to be built, which is cumbersome and costly. Second, traditional charging devices mostly use fixed material troughs or a single conveying method, which cannot flexibly adjust the feeding position and angle, easily leading to material spillage or accumulation, affecting smelting quality and the working environment. Third, some devices have poor mobility, making it difficult to flexibly switch between multiple electric arc furnaces, resulting in low equipment utilization.

[0003] Therefore, those skilled in the art have provided a feeding device for an electric arc furnace to solve the problems mentioned in the background art. Summary of the Invention

[0004] The purpose of this invention is to provide a feeding device for an electric arc furnace to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A feeding device for an electric arc furnace includes a U-shaped support. A hopper is provided above one end of the U-shaped support, and a material trough is fixedly connected to the bottom of the hopper. A rotating shaft is rotatably connected to the inner wall of one end of the U-shaped support. A lead screw is fixedly connected to the end of the rotating shaft. The other end of the lead screw is rotatably connected to the inner wall of the other end of the U-shaped support. Guide grooves are provided on both sides of the inner wall of the lead screw. A moving block is threaded onto the lead screw. Guide rods are fixedly connected to both sides of the moving block. The other end of the guide rod is located in the guide groove and is slidably connected to the inner wall of the guide groove.

[0007] As a further embodiment of this utility model: connecting blocks are fixedly connected to both sides of the center of the material trough, and connecting arms are rotatably connected to both connecting blocks on both sides. The other end of the connecting arms is rotatably connected to the guide rods on both sides of the moving block.

[0008] As a further improvement of this utility model: the U-shaped bracket is fixedly connected to the four corners with support legs, and the lower end of each support leg is fixedly installed with a locking caster wheel.

[0009] As a further improvement of this utility model: both sides of the hopper are rotatably connected to connecting rods, and the other end of the connecting rod is rotatably connected to the corresponding support leg on the same side.

[0010] As a further embodiment of this utility model: the trough is provided with an auger, and a drive motor is fixedly installed at one end of the trough near the hopper, and the output shaft of the drive motor is fixedly connected to the auger.

[0011] As a further embodiment of this utility model: a second drive motor is fixedly installed at one end of the U-shaped bracket near the hopper, and the output shaft of the second drive motor is fixedly connected to the rotating shaft.

[0012] As a further improvement of this utility model, a feed pipe is fixedly connected to the lower part of the feed trough away from the hopper.

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

[0014] 1. This utility model uses a second drive motor to drive a lead screw to rotate, and a moving block moves back and forth along the lead screw. In conjunction with the connecting arm, it changes the angle between the material trough and the hopper, thereby precisely adjusting the height of the feeding pipe. It can be adapted to electric arc furnaces of different heights and specifications without the need for additional auxiliary facilities, thus improving the equipment's versatility. An auger is installed in the material trough and is driven to rotate by a first drive motor to achieve continuous and stable material conveying. Compared with traditional gravity feeding or intermittent conveying methods, it reduces the risk of material blockage.

[0015] 2. The locking casters at the bottom of the U-shaped support allow for free movement and quick positioning of the device, facilitating switching between multiple electric arc furnaces, improving equipment utilization, and reducing the labor intensity of manual material handling. The material feeding position can be precisely controlled by adjusting the angle of the material trough, reducing material spillage, maintaining a clean working environment, and ensuring that the material falls accurately into the electric arc furnace, thus improving smelting quality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a feeding device for an electric arc furnace.

[0017] Figure 2 This is a schematic diagram of the structure of the hopper and trough in a feeding device for an electric arc furnace.

[0018] Figure 3 This is a side view of a feeding device for an electric arc furnace.

[0019] Figure 4 for Figure 1 Enlarged view of point a in the middle.

[0020] In the diagram: 1. U-shaped bracket; 2. Material trough; 3. Hopper; 4. Feed pipe; 5. Drive motor one; 6. Drive motor two; 7. Support leg; 8. Locking caster wheel; 9. Connecting rod; 10. Connecting block; 11. Connecting arm; 12. Rotating shaft; 13. Lead screw; 14. Moving block; 15. Guide rod; 16. Guide groove. Detailed Implementation

[0021] 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.

[0022] Example 1

[0023] Reference Figures 1-4 This embodiment provides a feeding device for an electric arc furnace, including a spiral bracket 1. A hopper 3 is provided above one end of the spiral bracket 1, and a material trough 2 is fixedly connected to the bottom of the hopper 3. A rotating shaft 12 is rotatably connected to the inner wall of one end of the spiral bracket 1 located in the hopper 3. A lead screw 13 is fixedly connected to the end of the rotating shaft 12. The other end of the lead screw 13 is rotatably connected to the inner wall of the other end of the spiral bracket 1. Guide grooves 16 are provided on both sides of the inner wall of the spiral bracket 1 located in the lead screw 13. A moving block 14 is threaded onto the lead screw 13. Guide rods 15 are fixedly connected to both sides of the moving block 14. The other end of the guide rod 15 is located in the guide groove 16 and is slidably connected to the inner wall of the guide groove 16.

[0024] Example 2

[0025] Reference Figures 1-4 This embodiment is based on the previous embodiment, but differs from the previous embodiment in that connecting blocks 10 are fixedly connected to both sides of the center of the material trough 2, and connecting arms 11 are rotatably connected to both sides of the connecting blocks 10. The other end of the connecting arms 11 is rotatably connected to the guide rods 15 on both sides of the moving block 14.

[0026] Furthermore, each of the four corners of the U-shaped bracket 1 is fixedly connected with a support leg 7, and the lower end of each support leg 7 is fixedly installed with a locking caster wheel 8; both sides of the hopper 3 are rotatably connected with a connecting rod 9, and the other end of the connecting rod 9 is rotatably connected to the support leg 7 on the same side.

[0027] Furthermore, the material trough 2 is equipped with an auger, and a drive motor 5 is fixedly installed at one end of the material trough 2 near the hopper 3. The output shaft of the drive motor 5 is fixedly connected to the auger. A drive motor 6 is fixedly installed at one end of the loop bracket 1 near the hopper 3. The output shaft of the drive motor 6 is fixedly connected to the rotating shaft 12. A discharge pipe 4 is fixedly connected to the lower part of the material trough 2 away from the hopper 3.

[0028] Working Principle: This feeding device for electric arc furnaces uses a U-shaped support frame 1 as its main frame. Locking casters 8 are installed at the lower ends of the four corner legs 7. During use, the operator can push the device to the target electric arc furnace and fix its position using the locking casters 8, ensuring stability and preventing shaking during feeding. Material enters the trough 2 through the hopper 3. The drive motor 5 is started, and its output shaft drives the auger in the trough 2 to rotate. As the auger rotates, the spiral blades push the material along the trough 2 towards the end away from the hopper 3, eventually falling into the electric arc furnace through the discharge pipe 4. The continuous rotation of the auger achieves uniform and efficient material conveying. When adapting to electric arc furnaces of different heights, the drive motor 6 is started. The output shaft of motor 26 drives the rotating shaft 12 to rotate, which in turn drives the lead screw 13 to rotate. When the lead screw 13 rotates, the moving block 14, which is threaded to it, moves back and forth along the axis of the lead screw 13. The guide rods 15 on both sides of the moving block 14 slide synchronously in the guide groove 16 on the inner wall of the U-shaped bracket 1 to ensure that the moving block 14 moves smoothly. During the movement of the moving block 14, the tilt angle between the material trough 2 and the hopper 3 is changed by the connecting arm 11. Since the feeding pipe 4 is fixed at the end of the material trough 2, the height of the feeding pipe 4 can be flexibly adjusted. The operator can accurately control the rotation direction and duration of the drive motor 26 according to the actual height of the electric arc furnace, and adjust the feeding pipe 4 to a suitable height and angle so that the material falls accurately into the electric arc furnace.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A feeding device for an electric arc furnace, comprising a U-shaped support (1), characterized in that, A hopper (3) is provided above one end of the spiral bracket (1). A trough (2) is fixedly connected to the bottom of the hopper (3). A rotating shaft (12) is rotatably connected to the inner wall of one end of the spiral bracket (1) located in the hopper (3). A lead screw (13) is fixedly connected to the end of the rotating shaft (12). The other end of the lead screw (13) is rotatably connected to the inner wall of the other end of the spiral bracket (1). Guide grooves (16) are provided on both sides of the inner wall of the spiral bracket (13). A moving block (14) is threaded onto the lead screw (13). Guide rods (15) are fixedly connected to both sides of the moving block (14). The other end of the guide rod (15) is located in the guide groove (16) and is slidably connected to the inner wall of the guide groove (16).

2. The feeding device for an electric arc furnace according to claim 1, characterized in that, The material trough (2) is fixedly connected to two connecting blocks (10) on both sides. The connecting blocks (10) on both sides are rotatably connected to connecting arms (11). The other end of the connecting arms (11) is rotatably connected to the guide rods (15) on both sides of the moving block (14).

3. The feeding device for an electric arc furnace according to claim 1, characterized in that, The U-shaped bracket (1) is fixedly connected to the four corners with support legs (7), and the lower end of each support leg (7) is fixedly installed with a locking caster wheel (8).

4. A feeding device for an electric arc furnace according to claim 3, characterized in that, Both sides of the hopper (3) are rotatably connected to connecting rods (9), and the other end of the connecting rod (9) is rotatably connected to the corresponding support leg (7) on the same side.

5. A feeding device for an electric arc furnace according to claim 1, characterized in that, The trough (2) is equipped with an auger, and a drive motor (5) is fixedly installed at one end of the trough (2) near the hopper (3). The output shaft of the drive motor (5) is fixedly connected to the auger.

6. A feeding device for an electric arc furnace according to claim 1, characterized in that, The second drive motor (6) is fixedly installed at one end of the U-shaped bracket (1) near the hopper (3), and the output shaft of the second drive motor (6) is fixedly connected to the rotating shaft (12).

7. A feeding device for an electric arc furnace according to claim 1, characterized in that, The feed trough (2) is fixedly connected to the lower end of the end away from the hopper (3) by a feed pipe (4).

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