A medium frequency furnace slag salvaging device

Abstract

This utility model relates to electrolytic aluminum, specifically disclosing a slag removal device for a medium-frequency furnace. The device includes a furnace opening protruding from the ground, a support frame mounted on the furnace opening, a horizontally arranged annular slide rail on the support frame, a sliding block slidably mounted on the slide rail, a slag storage box connected to the lower side of the sliding block and open at its upper end, a sleeve rotatably connected to the upper side of the sliding block, a slag removal rod slidably mounted in the sleeve, a first connecting rod located at the end of the slag removal rod near the furnace opening, a second connecting rod hinged to the end of the first connecting rod, and a slag removal box located at the lower end of the second connecting rod. One side of the slag removal box is attached to the inner wall of the furnace opening, and slag removal openings are provided on one side of the slag removal box and the side near the furnace opening. A hook is provided on the side of the slag removal box away from the inner wall of the furnace opening, and a drainage hole is provided at the bottom of the slag removal box. This utility model's medium-frequency furnace slag removal device can improve operator comfort while ensuring slag removal efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of electrolytic aluminum, and more specifically, to a slag removal device for a medium-frequency furnace. Background Technology

[0002] In the metal smelting process of the electrolytic aluminum industry, the intermediate frequency furnace has become one of the core pieces of equipment due to its high heating efficiency, mainly responsible for melting and smelting metal raw materials. Because intermediate frequency furnaces are generally large and tall, the feed inlet at the top of the equipment is usually designed to be flush with the ground to facilitate worker operation and feeding. This layout greatly reduces the difficulty of raw material transportation and improves the convenience of the feeding process.

[0003] However, during metal smelting, impurities in the raw materials gradually rise to the surface and accumulate on the surface of the molten metal at the furnace opening, forming slag. If not removed in time, this slag will affect the purity and efficiency of metal smelting. Therefore, slag removal is an indispensable part of the operation of medium-frequency furnaces. Currently, slag removal methods mainly fall into two categories: one is mechanical slag removal using complex automated equipment, which reduces manual intervention but is costly and difficult to maintain, making it unsuitable for widespread use in small and medium-sized production settings; the other relies on manual slag removal, where workers operate tools directly at the furnace opening. However, the temperature at the furnace opening is extremely high, typically reaching several hundred degrees Celsius, and the smelting process generates a large amount of high-temperature fumes containing harmful substances. Long-term exposure to such an environment greatly increases the risk of occupational hazards such as burns and respiratory damage, seriously threatening workers' health. Therefore, a new type of slag removal device needs to be designed that meets the requirements for slag removal efficiency and accuracy while effectively isolating workers from high temperatures and harmful fumes, and providing them with safety protection. Utility Model Content

[0004] The purpose of this invention is to provide a medium-frequency furnace slag removal device that can improve the comfort of workers during operation while ensuring slag removal efficiency.

[0005] This utility model is achieved through the following technical solution: The medium-frequency furnace slag removal device of this utility model includes a furnace opening protruding from the ground, a bracket mounted on the furnace opening, a horizontally arranged annular slide rail on the bracket, a slide seat slidably mounted on the slide rail, a slag storage box connected to the lower side of the slide seat and open at the upper end, a sleeve rotatably connected to the upper side of the slide seat, a slag removal rod slidably mounted in the sleeve, a first connecting rod located at the end of the slag removal rod near the furnace opening, a second connecting rod hinged to the end of the first connecting rod, and a slag removal box located at the lower end of the second connecting rod; one side of the slag removal box is attached to the inner wall of the furnace opening, and slag removal openings are provided on one side of the slag removal box and the side near the furnace opening, a hook is provided on the side of the slag removal box away from the inner wall of the furnace opening, and a leakage hole is provided at the bottom of the slag removal box.

[0006] Furthermore, the slag removal port is located on the upper side of the slag removal box.

[0007] Furthermore, the side of the slag removal box that is close to the inner wall of the furnace opening is arc-shaped.

[0008] Furthermore, a pair of support plates are provided on the upper side of the slide block, and rotating shafts are provided on opposite sides of the outer wall of the sleeve, with one rotating shaft rotatably connected to one of the support plates.

[0009] Furthermore, the bracket includes multiple clamps attached to the upper side wall of the furnace opening, and a first connecting plate for connecting the clamps to the slide rail; the multiple clamps are distributed along the circumference of the furnace opening.

[0010] Furthermore, the clamp is L-shaped and is simultaneously attached to the upper wall and outer wall of the furnace opening.

[0011] Furthermore, the bracket also includes a horizontally arranged support ring, which is located above the clamping plate, and multiple clamping plates are located between the support ring and the furnace opening; the support ring and the clamping plate are connected by a third connecting rod.

[0012] Furthermore, the slide block and the slag storage box are connected by a second connecting plate.

[0013] The technical solution of this utility model has at least the following advantages and beneficial effects: In use, the sealing cover on the furnace opening of this utility model's medium-frequency furnace slag removal device is first opened and removed. Then, the support is directly placed on the furnace opening. By operating the slag removal rod, the slag removal box is inserted into the molten metal inside the furnace opening, and the slag removal box adheres to the inner wall of the furnace opening. Then, the slag removal rod drives the sliding seat, slag storage box, and slag removal box to move in a circular motion along the furnace opening, allowing the slag near the inner wall of the furnace opening to enter the slag removal box through the slag removal port. The molten metal is discharged through the drain hole at the bottom of the slag removal box. After each slag removal, the slag removal box is lifted out of the molten metal using the slag removal rod and moved above the slag storage box. Then, the hook on the slag removal box is hung on the support, causing the upper end of the slag removal box to tilt downwards. The slag in the slag removal box is then discharged into the slag storage box through the slag removal port. After the slag removal is completed, the support, the slag removal rod, and the slag removal box can be lifted away. This allows workers to stay away from the furnace opening during the slag removal process, making the operation more labor-saving and easier. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a medium-frequency furnace slag removal device in one state, as provided in an embodiment of the present utility model. Figure 2 for Figure 1 Another structural diagram from a different perspective; Figure 3 This is a schematic diagram of the two states of the medium-frequency furnace slag removal device provided in an embodiment of the present invention; Figure 4 for Figure 3 Another structural diagram from a different perspective; Figure 5 for Figure 3 A schematic diagram of the internal structure of the object; Figure 6 This is a schematic diagram of the structure of the support portion provided in an embodiment of the present utility model; Figure 7 A schematic diagram of the slag removal box provided in an embodiment of this utility model from one perspective; Figure 8 This is a two-view structural schematic diagram of the slag removal box provided in an embodiment of the present utility model.

[0015] Icons: 10-Ground, 11-Furnace opening, 20-Bracket, 21-Slide rail, 22-Slide seat, 23-Slag storage box, 24-Sleeve, 25-Slag removal rod, 26-First connecting rod, 27-Second connecting rod, 28-Slag removal box, 29-Slag removal port, 210-Drain hole, 211-Support plate, 212-Rotating shaft, 213-Clamping plate, 214-First connecting plate, 215-Support ring, 216-Third connecting rod, 217-Second connecting plate, 218-Hook. Detailed Implementation

[0016] Example The following description, in conjunction with specific embodiments, further illustrates the point, as shown in the appendix. Figure 1 - Appendix Figure 8As shown, the medium-frequency furnace slag removal device of this embodiment includes a furnace opening 11 protruding from the ground 10, a bracket 20 mounted on the furnace opening 11, a horizontally arranged annular slide rail 21 on the bracket 20, a slide seat 22 slidably mounted on the slide rail 21, a slag storage box 23 connected to the lower side of the slide seat 22 and open at the upper end, a sleeve 24 rotatably connected to the upper side of the slide seat 22, a slag removal rod 25 slidably mounted in the sleeve 24, a first connecting rod 26 located at one end of the slag removal rod 25 near the furnace opening 11, a second connecting rod 27 hinged to the end of the first connecting rod 26, and a slag removal box 28 located at the lower end of the second connecting rod 27; one side of the slag removal box 28 is attached to the inner wall of the furnace opening 11, and a slag removal port 29 is opened on one side of the slag removal box 28 and the side near the furnace opening 11, a hook 218 is provided on the side of the slag removal box 28 away from the inner wall of the furnace opening 11, and a leakage hole 210 is opened at the bottom of the slag removal box 28. Specifically, in use, first open and remove the sealing cover on the furnace opening 11, then place the bracket 20 directly on the furnace opening 11. Operate the slag-removing rod 25 to allow the slag-removing box 28 to enter the molten metal inside the furnace opening 11, with the slag-removing box 28 adhering to the inner wall of the furnace opening 11. Then, the slag-removing rod 25 drives the sliding seat 22, the slag storage box 23, and the slag-removing box 28 to move in a circular motion along the furnace opening 11, allowing the slag near the inner wall of the furnace opening 11 to enter the slag-removing box 28 through the slag-removing port 29 (as shown in the attached diagram). Figure 1 - Appendix Figure 2 As shown), the molten metal is discharged through the drain hole 210 at the bottom of the slag removal box 28. After a single slag removal is completed, the slag removal box 28 is lifted out of the molten metal using the slag removal rod 25 and moved above the slag storage box 23. Then, the hook 218 on the slag removal box 28 is hung on the bracket 20, causing the upper end of the slag removal box 28 to tilt downwards, and the slag in the slag removal box 28 is discharged into the slag storage box 23 through the slag removal port 29 (as shown in the attached diagram). Figure 3 - Appendix Figure 5 As shown in the figure, after the slag removal is completed, the support 20 and the slag removal rod 25 and slag removal box 28 on it can be lifted away. In this way, the worker can move away from the furnace opening 11 during the slag removal process, which is more labor-saving and easier to operate.

[0017] In this embodiment, the slag removal port 29 is located on the upper side of the slag removal box 28. Specifically, this allows the slag at the furnace opening 11 to accumulate better at the bottom inner side of the slag removal box 28.

[0018] In this embodiment, the side of the slag removal box 28 that is close to the inner wall of the furnace opening 11 is arc-shaped. Specifically, this allows the slag removal box 28 to fit better against the inner wall of the furnace opening 11, thereby scooping the slag located on the inner wall of the furnace opening 11 into the slag removal box 28 (during the smelting process, the slag will naturally accumulate on the inner wall of the furnace opening 11).

[0019] In this embodiment, a pair of support plates 211 are provided on the upper side of the slide block 22, and rotating shafts 212 are provided on opposite sides of the outer wall of the sleeve 24. One rotating shaft 212 is rotatably connected to one support plate 211. Specifically, the slag-removing rod 25 can be supported by the support plates 211 and the sleeve 24, so that the slag-removing rod 25 can move axially in the sleeve 24 and rotate around the rotating shaft 212 within a certain range.

[0020] The support 20 in this embodiment includes multiple clamping plates 213 attached to the upper side wall of the furnace opening 11, and a first connecting plate 214 for connecting the clamping plates 213 and the slide rail 21; the multiple clamping plates 213 are distributed along the circumference of the furnace opening 11. The clamping plates 213 are L-shaped and are attached to both the upper and outer walls of the furnace opening 11. Specifically, the multiple clamping plates 213 are used to position the support 20 as a whole, so that the center of the guide rail coincides with the center of the furnace opening 11, which can effectively improve the efficiency of slag removal. When the slag removal box 28 is attached to the inner wall of the furnace opening 11 and at a suitable height, the worker only needs to push the slag removal rod 25 to move in a circle along the furnace opening 11. The operation is simple and there is no extra electrical equipment or need for laying wires. This device can be moved to the furnace opening 11 of the medium-frequency furnace where slag removal is required.

[0021] The bracket 20 in this embodiment also includes a horizontally arranged support ring 215, which is located above the clamping plate 213. Multiple clamping plates 213 are located between the support ring 215 and the furnace opening 11. The support ring 215 and the clamping plate 213 are connected by a third connecting rod 216. Specifically, a hook 218 is located on the lower side wall of the slag removal box 28. When it is necessary to discharge the slag from the slag removal box 28, the hook 218 can be hung on the support ring 215, and then the slag removal rod 25 can be tilted, causing the slag removal box 28 to tilt (rotate around the hook 218), allowing the slag in the slag removal box 28 to be discharged through the slag removal port 29 into the slag storage box 23 for temporary storage.

[0022] In this embodiment, the slide 22 and the slag storage box 23 are connected by a second connecting plate 217.

[0023] In summary, the slag removal device for the medium-frequency furnace in this embodiment requires the sealing cover on the furnace opening 11 to be opened and removed during use. Then, the support 20 is directly placed on the furnace opening 11. The slag removal rod 25 is operated to allow the slag removal box 28 to enter the molten metal inside the furnace opening 11, with the slag removal box 28 adhering to the inner wall of the furnace opening 11. The slag removal rod 25 then drives the sliding block 22, the slag storage box 23, and the slag removal box 28 to move in a circular motion along the furnace opening 11, allowing the slag near the inner wall of the furnace opening 11 to enter the slag removal box 28 through the slag removal port 29. The molten metal passes through the bottom of the slag removal box 28. After the slag is drained through the drain hole 210, the slag box 28 is lifted out of the molten metal using the slag removal rod 25 and moved above the slag storage box 23. Then, the hook 218 on the slag box 28 is hung on the support 20, causing the upper end of the slag box 28 to tilt downwards. The slag in the slag box 28 is discharged into the slag storage box 23 through the slag removal port 29. After the slag removal is completed, the support 20 and the slag removal rod 25 and slag box 28 on it can be lifted away. In this way, the worker can stay away from the furnace opening 11 during the slag removal process, which is more labor-saving and easier to operate.

[0024] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A medium frequency furnace slagging device comprising a furnace mouth (11) protruding from the ground (10), characterized in that: The system includes a bracket (20) mounted on the furnace opening (11), a horizontally arranged annular slide rail (21) on the bracket (20), a slide seat (22) slidably mounted on the slide rail (21), a slag storage box (23) connected to the lower side of the slide seat (22) and open at the upper end, a sleeve (24) rotatably connected to the upper side of the slide seat (22), a slag-removing rod (25) slidably mounted in the sleeve (24), a first connecting rod (26) located at one end of the slag-removing rod (25) near the furnace opening (11), a second connecting rod (27) hinged to the end of the first connecting rod (26), and a slag-removing box (28) located at the lower end of the second connecting rod (27). One side of the slag removal box (28) is attached to the inner wall of the furnace opening (11). The slag removal box (28) has a slag removal port (29) on one side and the side near the furnace opening (11). The slag removal box (28) is provided with a hook (218) on the side away from the inner wall of the furnace opening (11). The bottom of the slag removal box (28) is provided with a liquid leakage hole (210).

2. The medium frequency furnace slag extractor according to claim 1, characterized in that: The slag removal port (29) is located on the upper side of the slag removal box (28).

3. The medium frequency furnace slag extractor according to claim 1, characterized in that: The side of the slag box (28) that is close to the inner wall of the furnace opening (11) is arc-shaped.

4. The medium frequency furnace slag extractor according to claim 1, characterized in that: The slide (22) is provided with a pair of support plates (211) on its upper side, and the outer walls of the sleeve (24) are provided with rotating shafts (212) on opposite sides, and one of the rotating shafts (212) is rotatably connected to one of the support plates (211).

5. The medium frequency furnace slag extractor device according to claim 1, characterized in that: The bracket (20) includes a plurality of clamps (213) attached to the upper side wall of the furnace opening (11), and a first connecting plate (214) for connecting the clamps (213) and the slide rail (21); Multiple clamping plates (213) are distributed along the circumferential direction of the furnace opening (11).

6. The medium frequency furnace slag extractor according to claim 5, characterized in that: The clamp (213) is L-shaped and is attached to both the upper wall and the outer wall of the furnace opening (11).

7. The medium frequency furnace slag extractor device according to claim 5, characterized in that: The bracket (20) also includes a horizontally arranged support ring (215), which is located above the clamping plate (213), and multiple clamping plates (213) are located between the support ring (215) and the furnace opening (11); The support ring (215) and the clamping plate (213) are connected by a third connecting rod (216).

8. The medium frequency furnace slag extractor device according to claim 1, characterized in that: The slide (22) and the slag storage box (23) are connected by a second connecting plate (217).

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