Ladle slag cleaning device
By designing an automated molten iron ladle slag cleaning device, which utilizes a slag removal mechanism and a feeding mechanism, the problems of time-consuming, labor-intensive, and safety hazards associated with manual cleaning have been solved, achieving efficient and safe slag cleaning.
Patent Information
- Application Number
- CN202511338866.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-18
- Publication Date
- 2025-11-14
AI Technical Summary
Manually cleaning molten slag from molten iron ladles is time-consuming, labor-intensive, and poses safety hazards.
Design a ladle slag cleaning device, including a slag removal mechanism and a feeding mechanism. The device automatically cleans the slag by driving a rotating shaft and a slag removal plate through a drive motor, and adds cleaning additives into the ladle through the feeding mechanism.
It has achieved automated slag removal, reduced manual operation, improved efficiency, and reduced safety risks.
Smart Images

Figure CN120940633A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of smelting equipment technology, and in particular to a device for cleaning molten iron ladle slag. Background Technology
[0002] A ladle is a casting equipment used in foundry workshops for casting operations. It receives molten iron in front of the furnace, and the molten iron is poured into the ladle. There is a thick layer of slag on top, which needs to be cleaned off.
[0003] Currently, slag removal is done manually. Workers use hand-held slag-removing tools to remove the slag from the tilted ladle, while another worker adds additives to the ladle to facilitate slag removal. Manual removal is problematic because the temperature around the ladle is very high, requiring workers to be exposed to high temperatures for extended periods. Furthermore, slag splashes during removal can cause burns. The process also requires multiple workers, is time-consuming, labor-intensive, and prone to accidents. Summary of the Invention
[0004] In view of this, the purpose of this invention is to provide a ladle slag cleaning device to solve the problems of time-consuming and labor-intensive manual slag removal, which is also prone to safety accidents.
[0005] To achieve the above objectives, the present invention provides a ladle slag cleaning device, comprising a movable base, a fixed bracket mounted on the movable base, an installation bracket slidably disposed on one side of the fixed bracket, a feeding mechanism disposed on the top of the installation bracket, through which cleaning additives are added to the ladle, and a slag-removing mechanism disposed on the lower side of the installation bracket, through which the slag-removing mechanism extends into the ladle to remove the slag outwards. The slag-removing mechanism includes a rotating shaft, which is rotatably mounted on the installation bracket, and multiple sets of connecting rods are equidistantly arranged around the outer side of the rotating shaft, with slag-removing plates fixedly connected to the ends of the connecting rods.
[0006] A further improvement is that a drive motor is provided on one side of the mounting bracket, a worm gear is installed at the output end of the drive motor, and a worm wheel is installed at one end of the rotating shaft. The worm gear and the worm wheel mesh with each other, and the drive motor drives the rotating shaft to rotate through the worm gear and the worm wheel.
[0007] A further improvement is that guide brackets are symmetrically installed on both sides inside the mounting bracket. The guide brackets are inclined and a cleaning plate is slidably installed on the guide brackets. The cleaning plate cleans the slag adhering to the slag removal plate.
[0008] A further improvement is that a return spring is connected between the end of the cleaning plate and the guide bracket, and the cleaning plate is pulled back to its original position by the return spring after sliding on the guide bracket.
[0009] A further improvement is that the feeding mechanism includes a feeding box fixedly installed on the top of the mounting frame, with multiple sets of feeding holes equidistantly opened at the bottom center of the feeding box, and two sets of sealing plates symmetrically slidably arranged at the bottom of the feeding box, so as to open or close the feeding holes by sliding the sealing plates.
[0010] A further improvement is that a guide rail is provided at the bottom of the feeding box, and a sliding groove is provided on the sealing plate. The guide rail and the sliding groove are adapted to each other, and the sealing plate is slidably disposed at the bottom of the feeding box through the combination of the sliding groove and the guide rail.
[0011] A further improvement is that the feeding box is symmetrically and slidably equipped with movable frames on both sides, and the movable frames on both sides are fixedly connected to the corresponding sealing plates. Tooth blocks are provided on the upper and lower sides of the movable frames. Half-tooth gears are rotatably installed on both sides of the feeding box through a rotating shaft. The half-tooth gears are set in the movable frames and mesh with the tooth blocks. The rotating shafts are connected to each other through a transmission belt.
[0012] A further improvement is that the teeth of the semi-gears on both sides of the feeding box are arranged in opposite directions.
[0013] The beneficial effects of this invention are as follows: By setting up a slag removal mechanism for automatic slag removal, the rotating shaft is driven to rotate by a drive motor. The connecting rod installed on the rotating shaft drives the slag removal plate to rotate together with the rotating shaft. As the slag removal plate rotates, it extends into the molten iron ladle and pushes the molten slag outward, so that the molten slag is discharged outward in the inclined direction of the molten iron ladle. Furthermore, as the rotating shaft drives the slag removal plate to rotate continuously, continuous slag removal is achieved, reducing manual slag removal operations, greatly improving the convenience of slag removal, and reducing the occurrence of safety accidents.
[0014] By setting up a feeding mechanism to add cleaning additives into the molten iron ladle, as the rotating shaft rotates, the half-tooth gear drives the moving frame to slide the sealing plate on the guide rail. The sliding of the sealing plate opens the feeding hole on the lower side of the feeding box, and the cleaning additive is sprinkled into the molten iron ladle through the feeding hole, which facilitates the cleaning of slag and effectively improves the cleaning effect of slag. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention; Figure 2 This is a side view of the mounting bracket structure according to an embodiment of the present invention; Figure 3This is a schematic diagram of the feeding box structure according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the bottom structure of the feeding box according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the guide bracket structure according to an embodiment of the present invention.
[0017] The diagram is marked as follows: 1. Movable base; 2. Fixed bracket; 3. Mounting bracket; 4. Rotating shaft; 5. Connecting rod; 6. Slag removal plate; 7. Drive motor; 8. Worm gear; 9. Worm wheel; 10. Guide bracket; 11. Cleaning plate; 12. Return spring; 13. Feeding box; 14. Feeding hole; 15. Sealing plate; 16. Guide rail; 17. Slide groove; 18. Moving frame; 19. Tooth block; 20. Half tooth gear; 21. Transmission belt. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments.
[0019] It should be noted that, unless otherwise defined, the technical or scientific terms used in this invention should have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0020] like Figure 1As shown, this embodiment provides a ladle slag cleaning device, including a movable base 1. The movable base 1 has casters on its underside for easy movement. A fixed bracket 2 is mounted on the movable base 1. A mounting bracket 3 is slidably mounted on one side of the fixed bracket 2. A threaded rod is rotatably mounted in the middle of the fixed bracket 2, and the threaded rod is threadedly connected to the mounting bracket 3. The rotation of the threaded rod drives the mounting bracket 3 to move up and down along the side of the fixed bracket 2, adjusting the height of the mounting bracket 3. The threaded rod is driven by a motor. A counterweight is also provided on the movable base 1 to ensure its balance. A collection box is also provided at the end of the movable base 1 to collect the scraped slag. A protective baffle is provided on the side of the collection box for protection.
[0021] Figure 1 , Figure 2 As shown, a slag-removing mechanism is provided on the lower side of the mounting bracket 3. This mechanism extends into the molten iron ladle as the mounting bracket 3 rises and falls to remove molten slag. The slag-removing mechanism includes a rotating shaft 4, which is rotatably mounted on the mounting bracket 3. Multiple sets of connecting rods 5 are equidistantly arranged around the outer side of the rotating shaft 4, with at least two sets of connecting rods 5. The connecting rods 5 have a T-shaped structure, and a slag-removing plate 6 is fixedly connected to the middle of each end of the connecting rod. Rotation of the rotating shaft 4 causes the connecting rods 5 to drive the slag-removing plate 6 to extend into the molten iron ladle and rotate outwards to remove slag. A drive motor 7 is provided on one side of the mounting bracket 3. A worm gear 8 is installed at the output end of the drive motor 7, and a worm wheel 9 is installed at one end of the rotating shaft 4. The worm gear 8 and the worm wheel 9 mesh with each other, and the drive motor 7 drives the rotating shaft 4 to rotate through the worm gear 8 and the worm wheel 9.
[0022] Scrapers are symmetrically slidably installed at both ends of the connecting rod 5. The scrapers are located on one side of the slag removal plate 6, and the sides of the scrapers are arc-shaped. An elastic telescopic rod connects the scrapers. The elastic telescopic rod causes the two sets of scrapers to extend from both sides of the slag removal plate 6. The connecting rod 5 drives the slag removal plate 6 to rotate and extend into the ladle. The scrapers slide and extend against the inner side wall of the ladle, and the sides of the scrapers adhere to the side wall and scrape off the slag on the side wall, improving the slag cleaning effect.
[0023] like Figure 1 , 2As shown in Figure 5, guide brackets 10 are symmetrically installed on both sides of the mounting bracket 3. The guide brackets 10 are inclined, and a cleaning plate 11 is slidably mounted on the guide brackets 10. The cleaning plate 11 cleans the slag adhering to the slag removal plate 6. After the slag removal plate 6 rotates with the rotating shaft 4 and removes the slag from the ladle, it comes into contact with the cleaning plate 11 as the rotating shaft 4 rotates. The slag removal plate 6 pushes the cleaning plate 11 to slide along the guide bracket 10, and the cleaning plate 11 moves against the surface of the slag removal plate 6 to clean the slag adhering to the surface of the slag removal plate 6. A return spring 12 is connected between the end of the cleaning plate 11 and the guide bracket 10. After the slag removal plate 6 rotates to a certain angle, the slag removal plate 6 separates from the cleaning plate 11 and slides back to its original position on the guide bracket 10 by the return spring 12. By quickly pulling back the spring, the cleaning plate 11 collides with the end of the guide bracket 10, and the slag adhering to the cleaning plate 11 falls off due to the collision vibration.
[0024] like Figure 1 , 2 As shown in Figures 3 and 4, a feeding mechanism is provided at the top of the mounting bracket 3. The feeding mechanism adds cleaning additives to the molten iron ladle. The feeding mechanism includes a feeding box 13 fixedly installed at the top of the mounting bracket. Multiple sets of feeding holes 14 are equidistantly opened at the bottom center of the feeding box 13. The cleaning additives are sprinkled into the molten iron ladle through the feeding holes 14. The addition of the cleaning additives facilitates slag separation and improves the slag removal effect. Two sets of sealing plates 15 are symmetrically slidably arranged at the bottom of the feeding box 13. A guide rail 16 is provided at the bottom of the feeding box 13. The sealing plates 15 are provided with sliding grooves 17. The guide rails 16 and sliding grooves 17 are adapted to each other. The sealing plates 15 are slidably arranged at the bottom of the feeding box 13 through the combination of sliding grooves 17 and guide rails 16. The sealing plates 15 slide along the guide rails 16, and the sliding of the sealing plates 15 realizes the opening or closing of the feeding holes 14.
[0025] The feeding box 13 has symmetrically sliding movable frames 18 on both sides. Each movable frame 18 is fixedly connected to a corresponding sealing plate 15. Gear blocks 19 are provided on both the upper and lower sides of each movable frame 18. Half-tooth gears 20 are rotatably mounted on both sides of the feeding box 13 via a rotating shaft. The rotating shaft is rotatably mounted on the side of the feeding box 13, and the half-tooth gears 20 are fixedly mounted on the rotating shaft. The half-tooth gears 20 are located within the movable frames 18 and mesh with the gear blocks 19. This meshing of the half-tooth gears 20 and gear blocks 19 drives the movable frames 18 to move. A transmission belt 21 connects the rotating shaft 4 to the rotating shaft, causing the rotating shaft to rotate, which in turn drives the half-tooth gears 20 to rotate. The teeth of the half-tooth gears 20 on both sides of the feeding box 13 are arranged in opposite directions, and their teeth interlock with the upper and lower gear blocks 19 within the corresponding movable frames 18, causing the movable frames 18 to move closer to or further away from the sealing plates 15. The sealing plate 15 moves together with the moving frame 18, thereby opening or closing the feeding hole 14 at the bottom of the feeding box 13 for feeding.
[0026] When cleaning slag, the ladle is lifted by a hoisting device and kept tilted. The movable base 1 is pushed to move to one side of the ladle, positioning the slag removal mechanism and the feeding mechanism directly above the ladle. The mounting bracket 3 slides and adjusts its position on the fixed bracket 2, moving the slag removal plate 6 to a position where it extends into the ladle as the rotating shaft 4 rotates. The drive motor 7 drives the rotating shaft 4 to rotate via the drive gear and worm gear 9. As the rotating shaft 4 rotates, the slag removal plate 6 extends into the ladle and removes the slag to the outside of the ladle. The rotating shaft 4 drives the slag removal plate 6 to rotate continuously, thus achieving continuous slag removal. After removing the slag, the slag removal plate 6 contacts the cleaning plate 11, which adheres to the slag removal plate 6 and moves with it. The thrust generated by the rotation of plate 6 slides on the guide bracket 10, scraping away the molten slag attached to plate 6 during the sliding process. While the rotating shaft 4 drives plate 6 to clean molten slag, the rotating shaft 4 drives half-gear 20 to rotate through transmission belt 21. Half-gear 20 meshes with tooth block 19, driving moving frame 18 to slide back and forth. Sealing plate 15 slides on guide rail 16 as moving frame 18, thus exposing feeding hole 14 at the bottom of feeding box 13. Cleaning agent is sprinkled into ladle through feeding hole 14. With the continuous rotation of rotating shaft 4, sealing plate 15 moves back and forth on guide rail 16, closing and opening feeding hole 14 to achieve intermittent addition of cleaning additive, which facilitates rapid cleaning of molten slag and improves the cleaning effect of molten slag.
[0027] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity. Any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the scope of protection of the invention.
Claims
1. A device for cleaning slag from a molten iron ladle, comprising a movable base (1), characterized in that, A fixed bracket (2) is installed on the mobile base (1). An installation bracket (3) is slidably arranged on one side of the fixed bracket (2). A feeding mechanism is provided on the top of the installation bracket (3). A cleaning additive is added to the molten iron ladle through the feeding mechanism. A slag removal mechanism is provided on the lower side of the installation bracket (3). The slag removal mechanism extends into the molten iron ladle to remove the slag outward. The slag removal mechanism includes a rotating shaft (4). The rotating shaft (4) is rotatably installed on the installation bracket (3). Multiple sets of connecting rods (5) are equidistantly arranged around the outside of the rotating shaft (4). A slag removal plate (6) is fixedly connected to the end of the connecting rod (5).
2. The slag cleaning device for molten iron ladle according to claim 1, characterized in that, A drive motor (7) is provided on one side of the mounting bracket (3). A worm (8) is installed at the output end of the drive motor (7), and a worm wheel (9) is installed at one end of the rotating shaft (4). The worm (8) and the worm wheel (9) mesh with each other, and the drive motor (7) drives the rotating shaft (4) to rotate through the worm (8) and the worm wheel (9).
3. The slag cleaning device for molten iron ladle according to claim 1, characterized in that, The mounting bracket (3) has guide brackets (10) installed symmetrically on both sides. The guide brackets (10) are inclined and a cleaning plate (11) is slidably installed on the guide brackets (10). The cleaning plate (11) cleans the slag adhering to the slag removal plate (6).
4. The slag cleaning device for molten iron ladle according to claim 3, characterized in that, A reset spring (12) is connected between the end of the cleaning plate (11) and the guide bracket (10). After the cleaning plate (11) slides on the guide bracket (10), it is pulled back to its original position by the reset spring (12).
5. The slag cleaning device for molten iron ladle according to claim 1, characterized in that, The feeding mechanism includes a feeding box (13) fixedly installed on the top of the mounting frame. Multiple feeding holes (14) are equidistantly opened in the middle of the bottom of the feeding box (13). Two sets of sealing plates (15) are symmetrically slidably installed at the bottom of the feeding box (13). The feeding holes (14) can be opened or closed by sliding the sealing plates (15).
6. The slag cleaning device for molten iron ladle according to claim 5, characterized in that, The bottom of the feeding box (13) is provided with a guide rail (16) and a sliding groove (17) is provided on the sealing plate (15). The guide rail (16) and the sliding groove (17) are adapted to each other. The sealing plate (15) is slidably disposed at the bottom of the feeding box (13) through the combination of the sliding groove (17) and the guide rail (16).
7. The slag cleaning device for molten iron ladle according to claim 5, characterized in that, The feeding box (13) is symmetrically and slidably provided with movable frames (18) on both sides. The movable frames (18) are fixedly connected to the corresponding sealing plates (15). The upper and lower sides of the movable frames (18) are provided with tooth blocks (19). The two sides of the feeding box (13) are rotatably installed with half-tooth gears (20) through rotating shafts. The half-tooth gears (20) are located in the movable frames (18). The half-tooth gears (20) mesh with the tooth blocks (19). The rotating shaft (4) is connected to the rotating shaft through a transmission belt.
8. The slag cleaning device for molten iron ladle according to claim 7, characterized in that, The teeth of the half-tooth gears (20) on both sides of the feeding box (13) are arranged in opposite directions.