Electrolytic aluminium skimming device

Abstract

The application discloses a kind of electrolytic aluminium salvage equipment, it is related to electrolytic aluminium production field, including positioning pivot, positioning pivot horizontal activity is connected in frame, and the inner side wall position of positioning pivot is fixed with the side turning plate of vertical arrangement of positioning pivot;Salvage device is movably arranged in the one end of side turning plate, and when salvage device is located below, it can salvage and temporarily carry the dross in electrolytic cell;Material collecting device is movably arranged in the other end of side turning plate, and when salvage device is located above material collecting device, material collecting device can receive the dross temporarily carried by salvage device;Dispersing assembly is arranged in material collecting device, which can disperse the dross in material collecting device to avoid local accumulation of dross in material collecting device;Driving assembly is arranged on frame, and is drivingly connected with positioning pivot, and driving assembly can drive positioning pivot to rotate to adjust the up-down position of salvage device and material collecting device;The application has high work efficiency, and can avoid local accumulation of dross in material collecting device.

Description

Technical Field

[0001] This invention relates to the field of electrolytic aluminum production technology, and in particular to an electrolytic aluminum slag removal device. Background Technology

[0002] During the electrolytic aluminum production process, slag, formed by the condensation of electrolyte oxides, carbon slag, and impurities, is continuously generated in the electrolytic cell. If the slag is not removed in time, it will not only hinder the thermal and electrical balance of the electrolysis process and reduce the efficiency of the electrolytic current, but it will also mix into the aluminum liquid and affect the purity of the finished aluminum. Therefore, slag removal is a key process to ensure stable electrolytic aluminum production and qualified product quality.

[0003] In the early days, slag removal in electrolytic aluminum production relied mainly on manual hand-held slag removal tools. Workers had to be in harsh environments with high temperatures, strong magnetic fields, and high dust levels for extended periods, resulting in extremely high labor intensity, high personal safety risks, low slag removal efficiency, and inconsistent cleaning results, making it difficult to meet the needs of large-scale industrial production.

[0004] With the promotion of automated equipment, various mechanized slag removal devices have emerged in the industry. Among them, multi-joint robotic arm slag removal equipment is widely used. This equipment uses a robotic arm to drive a slag-removing bucket into the top-opening electrolytic cell to remove floating slag, and then uses the multi-degree-of-freedom movement of the robotic arm to transfer the slag to a collection container. However, this type of equipment still has significant drawbacks in practical applications. After slag removal, the spatial displacement and dumping of the slag-removing components require multi-joint linkage of the robotic arm, resulting in complex motion paths, frequent adjustments to the position of the slag-removing components, long work cycles, and low overall slag removal efficiency. Furthermore, the multi-joint robotic arm is prone to control failure in the strong magnetic field environment of the electrolytic cell, leading to a high equipment failure rate. Directly dumping the removed slag into the collection container can easily cause localized accumulation within the container, reducing the space utilization of the collection container, increasing the frequency of slag cleaning, and the clumps of accumulated slag also increase the difficulty of subsequent processing steps.

[0005] In summary, there is an urgent need to design a technical solution that is highly efficient and can prevent the local accumulation of scum in the collection device. Summary of the Invention

[0006] The purpose of this invention is to provide an electrolytic aluminum slag removal device to solve the problems existing in the prior art, which has high operating efficiency and can avoid local accumulation of floating slag in the collection device.

[0007] To achieve the above objectives, the present invention provides the following solution: This invention provides an electrolytic aluminum slag removal device, including a positioning shaft, a slag removal device, a collecting device, a dispersing component, a driving component, and a height-adjustable frame. The positioning shaft is horizontally movably connected to the frame, and a side rotating plate, perpendicular to the positioning shaft, is fixedly installed near the inner wall of the frame. The slag removal device is movably disposed at one end of the side rotating plate, and when the slag removal device is located in the collecting trough, it can remove and temporarily support the floating slag in the electrolytic cell. The collecting device is movably disposed at the other end of the side rotating plate, and when the slag removal device is located above the collecting device, it can support the floating slag temporarily supported by the slag removal device. The dispersing component is disposed inside the collecting device, and it can disperse the floating slag inside the collecting device to prevent local accumulation of floating slag inside the collecting device. The driving component is disposed on the frame and is drivenly connected to the positioning shaft, and the driving component can drive the positioning shaft to rotate to adjust the vertical position of the slag removal device and the collecting device.

[0008] In one embodiment, the frame includes two symmetrically arranged side panels, and a positioning pivot is movably connected between the two side panels. A side rotating plate, arranged perpendicular to the positioning pivot, is fixedly provided near the inner wall of the side panel. A height adjustment component is connected to the bottom of the side panel, and the height adjustment component can adjust the height of the side panel.

[0009] In one embodiment, the height adjustment assembly includes a movable base, a guide slide rod fixedly connected to the movable base, the bottom of the side plate being slidably inserted into the guide slide rod, and a lifting drive device fixedly connected to the movable base, the drive end of the lifting drive device being fixedly connected to the side plate.

[0010] In one embodiment, the retrieval device includes a retrieval shaft and a retrieval assembly. The retrieval shaft is rotatably mounted on one end of the side rotating plate, and the retrieval assembly is mounted on the retrieval shaft. During the rotation of the side rotating plate following the positioning shaft, the retrieval assembly is always directly below the retrieval shaft under its own weight. The retrieval assembly is used to retrieve and temporarily support the scum in the electrolytic cell.

[0011] In one embodiment, the salvage assembly includes a movable sleeve threadedly connected to the salvage shaft. A connector is fixedly connected to the bottom of the movable sleeve. Two symmetrically arranged salvage gears are rotatably connected to the lower sides of the connector. An arc-shaped salvage plate is connected to the outer side of each salvage gear via a fixed rod. A telescopic push rod is provided inside the connector. A rack is connected to the bottom of the telescopic push rod. The two sides of the rack mesh with the inner sides of adjacent salvage gears. The telescopic push rod can drive the rack to reciprocate, so that the two salvage gears rotate synchronously towards each other or in opposite directions. When the two salvage gears move towards each other to a set position, the adjacent end faces of the two salvage plates can abut. When the two salvage gears move in opposite directions, the adjacent end faces of the two salvage plates can separate.

[0012] In one embodiment, the collecting device includes a collecting shaft and a collecting assembly. The collecting shaft is rotatably disposed at the end of the side rotating plate away from the retrieval device. The collecting assembly is disposed on the collecting shaft. During the rotation of the side rotating plate following the positioning rotating shaft, the collecting assembly is always directly below the collecting shaft under its own weight. The collecting assembly is used to support the scum retrieved by the retrieval device.

[0013] In one embodiment, the collecting assembly includes a collecting box rotatably connected to the collecting shaft. The dispersing assembly is disposed inside the collecting box. A plurality of longitudinal rotating shafts are rotatably connected to the inner side of the collecting box. A driven bevel gear is fixedly connected to the top of each longitudinal rotating shaft. A plurality of driving bevel gears corresponding one-to-one with the driven bevel gears are fixedly connected to the collecting shaft. The driving bevel gears mesh with the corresponding driven bevel gears. A dispersing rotating rod is fixedly connected to the side wall of the longitudinal rotating shaft. A driving device is disposed on the side plate. The driving device is capable of being drivenly connected to the collecting shaft to drive the collecting shaft to rotate.

[0014] In one embodiment, the drive assembly includes a motor bracket fixedly connected to the side plate, a first motor fixedly connected to the motor bracket, a first rotating shaft fixedly connected to the rotor of the first motor, and a one-way coupling fixedly connected to the end of the first rotating shaft. The positioning rotating shaft and the one-way coupling are connected by a first gear set for transmission. The drive assembly is formed as the drive device. A second rotating shaft parallel to the first rotating shaft is movably provided on the side plate. A driven gear is fixedly connected to one end of the second rotating shaft located outside the side plate. A driving gear is provided on the first rotating shaft. The driven gear meshes with the driving gear. When the material collection assembly is located below the retrieval device, the end of the second rotating shaft away from the driving and driven gears can be connected to the material collection shaft by a second gear set for transmission.

[0015] In one embodiment, a second motor is fixedly connected to the side plate, and the second motor and the drive assembly are located on different side plates; a power gear is fixedly connected to the rotor of the second motor, and a linkage gear is fixedly connected to the end of the retrieval shaft and the collection shaft away from the drive assembly, and the power gear can mesh with the linkage gear of the retrieval shaft or the collection shaft; a locking mechanism is provided at the connection position between the collection shaft and the collection box, and the locking mechanism can lock the collection shaft and the collection box so that the collection box rotates synchronously with the collection shaft.

[0016] In one embodiment, the positioning shaft has symmetrically arranged inclined surfaces on its sidewall facing the retrieval shaft. When the adjacent end faces of the two retrieval plates separate, the scum retrieved by the retrieval assembly falls between the two retrieval plates and enters the collection device from both sides of the inclined surfaces after passing through the inclined surfaces. The retrieval plates are provided with leakage holes, the size of which is smaller than the size of the scum.

[0017] The present invention achieves the following technical effects compared to the prior art: This invention features a simple structure and ease of use. The vertical positions of the scooping device and the collecting device can be adjusted via a positioning shaft using a drive component. When the scooping device is positioned below, it can scoop scum from the electrolytic cell. The drive component rotates the positioning shaft, causing the scooping device, temporarily carrying the scum, to move upwards while the collecting device moves downwards. When the collecting device is directly below the scooping device, it can dump the scooped and temporarily carried scum into the collecting device, resulting in high operational efficiency. By switching positions, the scum can be placed into the collecting component after scooping, solving the problem of frequent repositioning of the scooping component required by conventional robotic arms. A dispersing component can disperse the scum within the collecting device, preventing excessive local accumulation. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of an electrolytic aluminum slag removal device in one or more embodiments of the present invention; Figure 2 This is a schematic diagram of the electrolytic aluminum slag removal equipment from another perspective in one or more embodiments of the present invention; Figure 3 This is a partial enlarged view of point A in the electrolytic aluminum slag removal equipment in one or more embodiments of the present invention; Figure 4This is a partially enlarged view of the location of the drive component in one or more embodiments of the electrolytic aluminum slag removal equipment of the present invention; Figure 5 This is a partial enlarged view of point B in the electrolytic aluminum slag removal equipment in one or more embodiments of the present invention; Figure 6 This is a partially enlarged view of the position of the dispersing rotating rod in one or more embodiments of the electrolytic aluminum slag removal equipment of the present invention; Figure 7 This is a partially enlarged view of the position of the positioning shaft in one or more embodiments of the electrolytic aluminum slag removal equipment of the present invention.

[0020] In the diagram: 1-Side upright plate; 2-Height adjustment component; 3-Positioning rotating shaft; 4-Drive component; 5-Side rotating plate; 6-Retrieving shaft; 7-Retrieving component; 8-Collecting shaft; 9-Collecting component; 10-Moving base; 11-Guide slide rod; 12-Telescopic hydraulic rod; 13-Connecting block; 14-Moving wheel; 15-Moving sleeve; 16-Connecting piece; 17-Retrieving gear; 18-Retrieving plate; 19-Rack; 20-Collecting box; 21-Longitudinal rotating shaft; 22-Driven bevel gear; 23-Driven bevel gear; 24-Dispersing rotating rod; 25-Motor bracket; 26-First motor; 27-First rotating shaft; 28-One-way coupling; 29-First gear set; 30-Second rotating shaft; 31-Driven gear; 32-Second gear set; 33-Second motor; 34-Power gear; 35-Linkage gear. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] The purpose of this invention is to provide an electrolytic aluminum slag removal device to solve the problems existing in the prior art, which has high operating efficiency and can avoid local accumulation of floating slag in the collection device.

[0023] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] Example 1 This embodiment provides an electrolytic aluminum slag removal device, see reference. Figures 1-7The system includes a positioning shaft 3, a retrieval device, a collection device, a dispersing component, a drive component 4, and a height-adjustable frame. The positioning shaft 3 is horizontally movably connected to the frame, and a side rotating plate 5, arranged perpendicularly to the positioning shaft 3, is fixed near the inner wall of the frame. The retrieval device is movably located at one end of the side rotating plate 5, and when the retrieval device is below, it can retrieve and temporarily support the scum in the electrolytic cell. The collection device is movably located at the other end of the side rotating plate 5, and when the retrieval device is above the collection device, it can support the scum temporarily supported by the retrieval device. The dispersing component is located inside the collection device, and it can disperse the scum inside the collection device to prevent the scum from accumulating locally inside the collection device. The drive component 4 is located on the frame and is connected to the positioning shaft 3. The drive component 4 can drive the positioning shaft 3 to rotate, thereby adjusting the vertical position of the retrieval device and the collection device. In this embodiment, the vertical positions of the retrieval device and the collection device can be adjusted via the positioning shaft 3 using the drive component 4. When the retrieval device is positioned below, it can retrieve the scum from the electrolytic cell. The drive component 4 drives the positioning shaft 3 to rotate, causing the retrieval device, which temporarily carries the scum, to move upwards, while the collection device moves downwards. When the collection device is directly below the retrieval device, it can dump the retrieved and temporarily carried scum into the collection device, resulting in high operational efficiency. By switching positions, the scum can be placed into the collection component 9 after retrieval, solving the problem of the need for frequent movement of the retrieval component 7 required by conventional robotic arms. The dispersion component can disperse the scum within the collection device, preventing excessive local accumulation.

[0025] In one embodiment of this invention, the frame includes two symmetrically arranged side panels 1. A positioning shaft 3 is movably connected between the two side panels 1. A side rotating plate 5, perpendicular to the positioning shaft 3, is fixedly installed near the inner wall of the side panel 1. A height adjustment assembly 2 is connected to the bottom of the side panel 1. The height adjustment assembly 2 includes a movable base 10. A guide slide rod 11 is fixedly connected to the movable base 10. The bottom of the side panel 1 is slidably inserted into the guide slide rod 11. Movable wheels 14 are fixedly connected below the movable base 10. The movable wheels 14 are evenly distributed below the movable base 10. The entire device of the present invention can be moved to a position close to the electrolytic cell by the movable wheels 14, improving the flexibility of operation. The two side panels 1 are located on both sides of the electrolytic cell. The collecting device and the scooping device are located above the electrolytic cell. A lifting drive device is fixedly connected to the movable base 10. The drive end of the lifting drive device is fixedly connected to the side plate 1. In this embodiment, the lifting drive device adopts a telescopic hydraulic rod 12. The telescopic hydraulic rod 12 can drive the side plate 1 to move up and down, so that the collecting device and the scooping device are located above the electrolytic cell. During the scooping process, the scooping device descends into the electrolytic cell through the opening at the top of the electrolytic cell to carry out the scum scooping operation. When the telescopic hydraulic rod 12 on the movable base 10 extends and retracts, it drives the side plate 1 to slide up and down along the guide slide rod 11 through the top connecting block 13, so as to accurately adjust the overall height of the equipment, adapt to the liquid level or scum layer depth of different electrolytic cells, and meet the scooping requirements.

[0026] In one embodiment of this invention, the retrieval device includes a retrieval shaft 6 and a retrieval assembly 7. The retrieval shaft 6 is rotatably mounted on one end of a side rotating plate 5, and the retrieval assembly 7 is mounted on the retrieval shaft 6. During the rotation of the side rotating plate 5 following the positioning rotating shaft 3, the retrieval assembly 7 remains directly below the retrieval shaft 6 under its own weight. The retrieval assembly 7 is used to retrieve and temporarily support the scum in the electrolytic cell. In this embodiment, the outer wall of the retrieval shaft 6 is threaded. The retrieval assembly 7 includes a movable sleeve 15, which is threadedly connected to the retrieval shaft 6. The movable sleeve 15 and the retrieval shaft 6 form a structure similar to a screw thread. When the retrieval shaft 6 rotates, it drives the movable sleeve 15 to move horizontally, thereby adjusting the position of the retrieval assembly 7 so that the retrieval assembly 7 can retrieve scum at different locations. A connecting piece 16 is fixedly connected to the bottom of the movable sleeve 15. Two symmetrically arranged retrieval gears 17 are rotatably connected to the lower sides of the connecting piece 16. The outer sides of the retrieval gears 17 are connected by a fixed rod. An arc-shaped retrieval plate 18 is attached; a telescopic push rod is provided inside the connecting piece 16, and a rack 19 is connected to the bottom of the telescopic push rod. The two sides of the rack 19 mesh with the inner sides of the adjacent retrieval gears 17 respectively; the telescopic push rod can drive the rack 19 to reciprocate, so that the two retrieval gears 17 rotate synchronously towards each other or in opposite directions. When the two retrieval gears 17 move towards each other to a set position, the adjacent end faces of the two retrieval plates 18 can abut; when the two retrieval gears 17 move in opposite directions, the two retrieval plates 18 can abut. The end faces of the plate 18 can be separated, the retrieval gear 17 rotates, and the arc-shaped retrieval plate 18 is opened and closed through the fixed rod, thereby realizing the retrieval of scum; the retrieval plate 18 is provided with evenly distributed leakage holes. When the leakage hole is a circular hole, the inner diameter of the leakage hole is smaller than the outer diameter of the scum. When the leakage hole is a strip hole, the width of the leakage hole is smaller than the outer diameter of the scum. During the retrieval process, the scum is prevented from falling, while the electrolyte in the electrolytic cell can flow out into the electrolytic cell through the leakage holes.

[0027] In one embodiment of this invention, the collecting device includes a collecting shaft 8 and a collecting assembly 9. The collecting shaft 8 is rotatably mounted on the side rotating plate 5 at the end away from the retrieval device. The collecting assembly 9 is mounted on the collecting shaft 8. During the rotation of the side rotating plate 5 following the positioning rotating shaft 3, the collecting assembly 9 is always directly below the collecting shaft 8 under its own weight. The collecting assembly 9 is used to carry the scum retrieved by the retrieval device. The collecting assembly 9 includes a collecting box 20 rotatably connected to the collecting shaft 8. A dispersing component is provided inside the collecting box 20. Several longitudinal rotating shafts 21 are rotatably connected inside the collecting box 20. A driven bevel gear 22 is fixedly connected to the top of each longitudinal rotating shaft 21. Several driving bevel gears 23, corresponding one-to-one with the driven bevel gears 22, are fixedly connected to the collecting shaft 8. The driving bevel gears 23 mesh with the corresponding driven bevel gears 22. A dispersing rotating rod 24 is fixedly connected to the side wall of the longitudinal rotating shaft 21. A driving device is provided on the side plate 1. The driving device can be connected to the collecting shaft 8 to drive the collecting shaft 8 to rotate.

[0028] In this embodiment, the drive assembly 4 includes a motor bracket 25 fixedly connected to the side plate 1. A first motor 26 is fixedly connected to the motor bracket 25. A first rotating shaft 27 is fixedly connected to the rotor of the first motor 26. A one-way coupling 28 is fixedly connected to the end of the first rotating shaft 27. The positioning rotating shaft 3 and the one-way coupling 28 are connected by a first gear set 29. The first gear set 29 includes two meshing gears. One gear is fixedly connected to one end of the positioning rotating shaft 3, and the other gear is connected to the one-way coupling 28 away from the first rotating shaft 27. The end is fixedly connected, and the one-way coupling 28 allows the first motor 26 to drive the positioning shaft 3 in only one direction, thereby adjusting the vertical position of the retrieval component 7 and the collecting component 9. However, it will not adjust the position when it is reversed. In order to prevent the positioning shaft 3 from rotating under the action of gravity, it is necessary to prevent the heavier components from passing the highest point of the top. During the adjustment process, since the retrieval component 7 and the retrieval shaft 6 are rotatably connected, and the collecting component 9 and the collecting shaft 8 are rotatably connected, the open ends of the retrieval component 7 and the collecting component 9 always face upward under the action of gravity, and there will be no overturning problem.

[0029] In this embodiment, the drive assembly 4 is configured as a drive device. A second rotating shaft 30, parallel to the first rotating shaft 27, is movably mounted on the side plate 1. A driven gear 31 is fixedly connected to one end of the second rotating shaft 30 located outside the side plate 1. A driving gear is mounted on the first rotating shaft 27, and the driven gear 31 meshes with the driving gear. When the collecting assembly 9 is located below the retrieval device, the end of the second rotating shaft 30 away from the driving and driven gears 31 can be connected to the collecting shaft 8 via a second gear set 32. In this embodiment, the second gear set 32 ​​includes two pinions. The first pinion is fixedly connected to one end of the second rotating shaft 30 located inside the side plate 1, and the second pinion is fixedly connected to one end of the collecting shaft 8. When the collecting shaft 8 is located in other positions... When the material is placed, the first and second pinions are disengaged and not connected. When the collecting shaft 8 is directly below the positioning shaft 3, the first and second pinions mesh. At this time, if the first motor 26 is reversed, the first motor 26 will not drive the positioning shaft 3 to rotate. Since the driving gear on the outside of the first shaft 27 meshes with the driven gear 31 on the second shaft 30, the first motor 26 drives the second shaft 30 to rotate. Then, through the second gear set 32, the collecting shaft 8 is driven to rotate, causing the longitudinal shaft 21 to rotate and driving the dispersing rod 24 to rotate. The scum entering the collecting box 20 will be dispersed and placed in different positions inside the collecting box 20 to avoid excessive local accumulation.

[0030] Example 2 refer to Figures 1-7This embodiment is a further improvement based on Embodiment 1. In this embodiment, a second motor 33 is fixedly connected to a side plate 1, and the second motor 33 and the drive assembly 4 are located on different side plates 1. A power gear 34 is fixedly connected to the rotor of the second motor 33. A linkage gear 35 is fixedly connected to the ends of the retrieval shaft 6 and the collection shaft 8 away from the drive assembly 4. When the retrieval shaft 6 is directly below the positioning shaft 3, the power gear 34 can mesh with the linkage gear 35 of the retrieval shaft 6. When the collection shaft 8 is directly below the positioning shaft 3, the power gear 34 can mesh with the linkage gear 35 of the collection shaft 8. A locking mechanism is provided at the connection position between the collection shaft 8 and the collection box 20. The locking mechanism can lock the collection shaft 8 and the collection box 20 so that the collection box 20 can be locked. The 0 follows the synchronous rotation of the collecting shaft 8; when the second motor 33 rotates, it drives the power gear 34 to rotate. The power gear 34 meshes with different linkage gears 35 to achieve different functions. When it meshes with the linkage gear 35 of the retrieval shaft 6, it can drive the retrieval shaft 6 to rotate, thereby causing the retrieval component 7 to move horizontally along the retrieval shaft 6, thereby adjusting the position of the retrieval component 7. When it meshes with the linkage gear 35 of the collecting component 9, the locking mechanism needs to be activated to fix the collecting shaft 8 and the collecting box 20. At this time, when the collecting shaft 8 rotates, it will drive the collecting box 20 to flip and pour out the scum. In addition, a discharge port that can be opened and closed can be set at the bottom of the collecting box 20. When the whole device is moved to the unloading position and the discharge port is opened, the scum in the collecting box 20 can also be discharged. To ensure the scum can be discharged, a locking mechanism needs to be installed on the collection box 20. When scum needs to be discharged, the locking mechanism locks the relative position of the collection box 20 and the collection shaft 8, thus achieving the purpose of scum discharge. The structure of the locking mechanism is not limited; a locking rod structure can be used. For example, a vertically arranged hydraulic rod can be fixed on the side wall of the collection box 20, and a locking hole can be provided on the collection shaft 8. When the end of the hydraulic rod extends into the locking hole, the collection box 20 and the collection shaft 8 can be locked. Alternatively, a hydraulic gripper can be fixed on the side wall of the collection box 20, and... The hydraulic gripper clamps and fixes the collecting shaft 8, which can also lock the collecting box 20 and the collecting shaft 8. To avoid interference, the locking mechanism only activates its locking function when the power gear 34 meshes with the linkage gear 35 of the collecting component 9 and the second motor 33 starts. The first motor 26 drives the collecting shaft 8 to rotate, so that the second motor 33 does not start when the dispersing component is working, and the first motor 26 stops when the second motor 33 starts, and no longer drives the collecting shaft 8 to rotate, thereby avoiding mutual interference between the working processes of the first motor 26 and the second motor 33.

[0031] In this embodiment, when the electrolytic aluminum slag removal equipment is in operation, the moving wheels 14 under the moving base 10 roll, moving the entire equipment to the target working position of the electrolytic cell, improving operational flexibility. The telescopic hydraulic rod 12 on the moving base 10 extends and retracts, driving the side plate 1 to slide up and down along the guide slide rod 11 via the top connecting block 13, precisely adjusting the overall height of the equipment to adapt to different liquid levels or slag layer depths in different electrolytic cells, meeting slag removal requirements.

[0032] The equipment is powered by a first motor 26 and a second motor 33, which drive the positioning shaft 3, the retrieval shaft 6, and the collection shaft 8 to rotate in tandem via gear transmission. After the first motor 26 starts, the rotor drives the first shaft 27 to rotate, which in turn drives the positioning shaft 3 to rotate via a one-way coupling 28 and a first gear set 29. At this point, the relative positions of the retrieval shaft 6 and the collection shaft 8 can be adjusted. When retrieval is required, the retrieval shaft 6 is driven downwards. By adjusting the extension and retraction of the rack 19, the two retrieval gears 17 are driven to rotate in opposite directions, thereby causing the two retrieval plates 18 to open, forming two mechanical claw-like structures. Then, by adjusting the height of the side plate 1, the retrieval assembly 7 is lowered below the electrolyte surface in the electrolytic cell. Then, by moving the rack 19 in the opposite direction, the two retrieval plates 18 are driven to move relative to each other and close. At this time, the two retrieval plates 18 grab the scum on the surface of the electrolyte onto the arc-shaped surface of the two retrieval plates 18. Adjusting the side plate 1 upwards completes the retrieval process. When it is necessary to collect the scum after retrieval, the retrieval shaft 6 needs to be driven to the collection assembly 9. During the driving process, the retrieval shaft 6 follows the multi-sided rotating plate 5 to rotate around the positioning rotating shaft 3 to the top. During this period, the arc-shaped surface of the retrieval plate 18 carrying the scum always faces upward under the action of gravity, and there will be no problem of scum falling. It should be noted that when the first motor 26 drives the positioning rotating shaft 3 to rotate, the retrieval component 7 or the collection component 9 should not directly pass the highest point of the top. When it passes the highest point of the top, if the mass of the component above is greater than the mass of the component below, it will continue to move under the action of gravity until the component with the greater mass is at the bottom. When the retrieval component is directly above the collection component 9, the rack 19 moves downward, causing the two retrieval plates 18 to open, and the scum it carries falls into the collection box 20 below through the space opened by the two retrieval plates. In addition, during the salvage operation, the salvage component and the material collection component 9 can be moved to both sides of the positioning shaft 3. The salvage component enters the electrolytic cell, and the material collection component 9 is located outside the electrolytic cell. At this time, the salvage process can be started, and the salvage operation can be achieved without moving the salvage component directly below the positioning shaft 3.

[0033] As the scum falls into the collection box 20, the first motor 26 is reversed. The first motor 26 will not drive the positioning shaft 3 to rotate at this time. Since the driving gear on the outside of the first shaft 27 meshes with the driven gear 31 on the second shaft 30, the first motor 26 drives the second shaft 30 to rotate. Then, through the second gear set 32, the collection shaft 8 is driven to rotate, causing the longitudinal shaft 21 to rotate and drive the dispersing rod 24 to rotate. The scum entering the collection box 20 will be dispersed and placed in different positions inside the collection box 20 to avoid local accumulation.

[0034] When it is necessary to empty the scum in the collection box 20, the first motor 26 is stopped, and then the second motor 33, which is fixed on the other side plate 1, is started. The rotor drives the power gear 34 to rotate, and the power gear 34 meshes with the linkage gear 35 on the outside of the collection shaft 8, driving the two shafts to rotate. The locking mechanism locks the collection shaft 8 to the collection box 20. The collection shaft 8 drives the collection box 20 to flip, causing the scum inside the collection box 20 to pour out. When the locking mechanism locks the collection box 20 and the collection shaft 8, the first motor 26 needs to be turned off to prevent the two motors from driving the collection shaft 8 to rotate in different directions, which could damage the collection shaft 8.

[0035] The telescopic push rod inside the connector 16 can be an electric push rod or a hydraulic rod. When it extends or retracts, it drives the rack 19 to move back and forth. The rack 19 meshes with the two side retrieval gears 17 at the same time, synchronously driving the retrieval gears 17 to rotate. Through the fixed rod, it drives the arc-shaped retrieval plate 18 to open and close, thereby realizing the scum retrieval operation. After retrieval, the leakage hole on the retrieval plate 18 will drain out the aluminum liquid, reducing the loss of aluminum liquid.

[0036] To ensure that the scum collected can fall more smoothly into the collection box 20, this embodiment has symmetrically arranged inclined surfaces on the side wall of the positioning shaft 3 facing the scum collection shaft 6. When the adjacent end faces of the two scum collection plates 18 separate, the scum collected by the scum collection component 7 falls between the two scum collection plates 18 and enters the collection device from both sides of the inclined surfaces after passing through the inclined surfaces. This avoids the positioning shaft 3 interfering with the scum entering the collection box 20. The material enters the collection box 20 through the two inclined surfaces, which also prevents it from accumulating in the collection box 20.

[0037] In this embodiment, the entire dredging operation requires a high degree of coordination. The height of the equipment is adjusted by the height adjustment component 2, and the moving wheels 14 move the equipment to the electrolytic cell working position. The first motor 26 starts, driving the positioning shaft 3 to rotate and adjust the position of the dredging component 7 and the collection component 9. Reversing the first motor 26 can collect the dredged scum into the collection box 20. The second motor 33 adjusts the position of the dredging component 7 and discharges the scum from inside the collection box 20. The above process is repeated to complete the continuous scum cleaning operation.

[0038] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A slag removal device for electrolytic aluminum, characterized in that: include: Height-adjustable frame; A positioning pivot is horizontally and movably connected to the frame. A side rotating plate, which is arranged perpendicularly to the positioning pivot, is fixedly provided near the inner wall of the frame. The retrieval device is movably mounted at one end of the side rotating plate, and when the retrieval device is located in the collection trough, it can retrieve and temporarily support the floating slag in the electrolytic cell. The material collection device is movably mounted on the other end of the side rotating plate. When the dredging device is located above the material collection device, the material collection device can receive the floating scum temporarily carried by the dredging device. A dispersing component, disposed within the collecting device, is capable of breaking up the scum within the collecting device to prevent localized accumulation of scum within the collecting device. as well as A drive assembly is mounted on the frame and is connected to the positioning shaft. The drive assembly can drive the positioning shaft to rotate in order to adjust the vertical position of the retrieval device and the material collection device.

2. The electrolytic aluminum slag removal equipment according to claim 1, characterized in that: The frame includes two symmetrically arranged side panels, and a positioning pivot is movably connected between the two side panels. A side panel perpendicular to the positioning pivot is fixedly provided near the inner wall of the side panel. A height adjustment component is connected to the bottom of the side panel, and the height adjustment component can adjust the height of the side panel.

3. The electrolytic aluminum slag removal equipment according to claim 2, characterized in that: The height adjustment assembly includes a movable base, a guide slide rod fixedly connected to the movable base, a side plate slidably inserted into the guide slide rod at its bottom, and a lifting drive device fixedly connected to the movable base, the drive end of the lifting drive device being fixedly connected to the side plate.

4. The electrolytic aluminum slag removal equipment according to claim 2, characterized in that: The salvage device includes a salvage shaft and a salvage assembly. The salvage shaft is rotatably mounted on one end of the side rotating plate, and the salvage assembly is mounted on the salvage shaft. During the rotation of the side rotating plate following the positioning rotating shaft, the salvage assembly is always directly below the salvage shaft under its own weight. The salvage assembly is used to salvage and temporarily support the scum in the electrolytic cell.

5. The electrolytic aluminum slag removal equipment according to claim 4, characterized in that: The salvage assembly includes a movable sleeve threadedly connected to the salvage shaft. A connector is fixedly connected to the bottom of the movable sleeve. Two symmetrically arranged salvage gears are rotatably connected to the lower sides of the connector. An arc-shaped salvage plate is connected to the outer side of each salvage gear via a fixed rod. A telescopic push rod is provided inside the connector. A rack is connected to the bottom of the telescopic push rod. The rack meshes with the inner sides of the adjacent salvage gears on both sides. The telescopic push rod can drive the rack to reciprocate, so that the two salvage gears rotate synchronously towards each other or in opposite directions. When the two salvage gears move towards each other to a set position, the adjacent end faces of the two salvage plates can abut. When the two salvage gears move in opposite directions, the adjacent end faces of the two salvage plates can separate.

6. The electrolytic aluminum slag removal equipment according to claim 2, characterized in that: The material collection device includes a material collection shaft and a material collection assembly. The material collection shaft is rotatably mounted on the side rotating plate at the end away from the retrieval device. The material collection assembly is mounted on the material collection shaft. During the rotation of the side rotating plate following the positioning shaft, the material collection assembly is always directly below the material collection shaft under its own weight. The material collection assembly is used to support the scum retrieved by the retrieval device.

7. The electrolytic aluminum slag removal equipment according to claim 6, characterized in that: The collecting assembly includes a collecting box rotatably connected to the collecting shaft. The dispersing assembly is disposed inside the collecting box. Several longitudinal rotating shafts are rotatably connected to the inner side of the collecting box. A driven bevel gear is fixedly connected to the top of each longitudinal rotating shaft. Multiple driving bevel gears corresponding one-to-one with the driven bevel gears are fixedly connected to the collecting shaft. The driving bevel gears mesh with the corresponding driven bevel gears. A dispersing rotating rod is fixedly connected to the side wall of the longitudinal rotating shaft. A driving device is disposed on the side plate. The driving device can be connected to the collecting shaft for transmission to drive the collecting shaft to rotate.

8. The electrolytic aluminum slag removal equipment according to claim 7, characterized in that: The drive assembly includes a motor bracket fixedly connected to the side plate, a first motor fixedly connected to the motor bracket, a first rotating shaft fixedly connected to the rotor of the first motor, and a one-way coupling fixedly connected to the end of the first rotating shaft. The positioning rotating shaft and the one-way coupling are connected by a first gear set. The drive assembly is formed as the drive device. A second rotating shaft parallel to the first rotating shaft is movably provided on the side plate. A driven gear is fixedly connected to one end of the second rotating shaft located outside the side plate. A driving gear is provided on the first rotating shaft. The driven gear meshes with the driving gear. When the material collection assembly is located below the retrieval device, the end of the second rotating shaft away from the driving and driven gears can be connected to the material collection shaft by a second gear set.

9. The electrolytic aluminum slag removal equipment according to claim 7, characterized in that: A second motor is fixedly connected to the side plate, and the second motor and the drive assembly are located on different side plates. A power gear is fixedly connected to the rotor of the second motor. A linkage gear is fixedly connected to the end of the retrieval shaft and the collection shaft away from the drive assembly. The power gear can mesh with the linkage gear of the retrieval shaft or the collection shaft. A locking mechanism is provided at the connection position between the collection shaft and the collection box. The locking mechanism can lock the collection shaft and the collection box so that the collection box rotates synchronously with the collection shaft.

10. The electrolytic aluminum slag removal equipment according to claim 5, characterized in that: The positioning shaft has symmetrical inclined surfaces on its sidewall facing the retrieval shaft. When the adjacent end faces of the two retrieval plates separate, the scum retrieved by the retrieval component falls between the two retrieval plates and enters the collection device from both sides of the inclined surfaces after passing through the inclined surfaces. The retrieval plates are provided with leakage holes, the size of which is smaller than the size of the scum.

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