Steel ladle capping device
The cover-applying mechanism, which combines a hydraulic cylinder and a sliding plate, solves the problems of high labor intensity and inability to cover the ladle during slag dumping in existing ladle cover-applying devices, thus achieving automated cover-applying and slag dumping and improving production efficiency.
Patent Information
- Application Number
- CN202520573129.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-29
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-29
AI Technical Summary
The existing ladle covering device is labor-intensive and cannot be operated with the cover on during slag dumping, which affects the production rhythm.
The ladle capping mechanism, which uses a combination of hydraulic cylinder and sliding plate, automates the ladle capping and slag emptying process through hydraulic control. The semi-enclosed hook design ensures that the ladle cap will not fall off.
It reduced the labor intensity of workers, enabled covered operation during slag dumping, and improved production efficiency and pace.
Smart Images

Figure CN223916656U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metallurgical technology, specifically to a ladle covering device. Background Technology
[0002] A ladle is a container used to store and transport molten steel during the smelting process. During transport and handling, without any insulation, the molten steel will dissipate heat to the surrounding environment through radiation and convection, causing its temperature to drop. Covering the ladle effectively reduces this radiative heat loss, maintaining the molten steel at a high temperature and thus reducing the amount of heat needed in subsequent processes.
[0003] The existing ladle capping device is based on a simple lever principle, with a manually controlled switch. It uses a simple lifting mechanism to attach the ladle cap to the ladle, which not only increases the labor intensity of workers, but also requires stopping at the workstation to lift the ladle cap before the ladle can continue to be emptied when slag is dumped. This back-and-forth process is time-consuming and cannot effectively shorten the time or improve the production pace. Utility Model Content
[0004] To address the above deficiencies, this utility model provides a ladle capping device to solve the ladle capping problem.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A ladle capping device includes a capping platform, a ladle cap, and a ladle. A set of ear loops is installed on the right side of the ladle, and a capping mechanism is provided at the bottom of the capping platform.
[0007] The capping mechanism includes a hydraulic cylinder one, a lifting plate, a hydraulic cylinder two, a sliding plate, three hooks, three lifting rings, and a set of semi-enclosed hook structures. The hydraulic cylinder one is installed on the bottom left side of the capping platform, and its telescopic end moves through the capping platform. The lifting plate is installed on the telescopic end of the hydraulic cylinder one. The hydraulic cylinder two is horizontally installed on the left side of the lifting plate. The sliding plate is installed on the telescopic end of the hydraulic cylinder two. The three hooks are staggered and installed on the bottom right side of the sliding plate. The three lifting rings are installed on the upper end of the cap and correspond to the positions of the three hooks. A set of semi-enclosed hook structures is installed on the right side of the cap.
[0008] Furthermore, the right side of the covered platform has strip-shaped holes corresponding to the three hooks.
[0009] Furthermore, a set of overhead crane lifting rings is installed at both ends of the steel ladle, and a rear overhead crane lifting ring is installed on the bottom right side.
[0010] Furthermore, two sets of guide rods are movably inserted on the left side of the covered platform, and the upper ends of the two sets of guide rods are respectively connected to the lifting plate.
[0011] Furthermore, a set of fixed slide rails are installed on both sides of the lifting plate, and the bottom sides of the sliding plate are slidably installed on a set of fixed slide rails.
[0012] Furthermore, a set of semi-enclosed structural hooks is designed with a 90° angle.
[0013] This utility model provides a ladle capping device with the following advantages: the clever combination of the hooked ladle cap and the ladle lugs not only achieves the purpose of capping the ladle, but also allows for slag to be poured with the cap on, reducing the slag pouring process time and improving production speed; the semi-enclosed hook has a 90° angle design, which not only ensures that the ladle cap will not fall off when the ladle is tilted together with the slag, but also allows the ladle to move towards the notch of the semi-enclosed hook when the ladle cap is lifted, enabling quick separation of the ladle cap and the ladle. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of a ladle capping device according to the present invention.
[0015] Figure 2 This is a cross-sectional view of the covered platform described in this utility model.
[0016] Figure 3 This is a schematic diagram of the steel ladle described in this utility model.
[0017] Figure 4 This is a schematic diagram of the cover described in this utility model.
[0018] Figure 5 This is a top view of the cover described in this utility model.
[0019] Figure 6 This is a schematic diagram of slag removal from the ladle according to the present invention.
[0020] In the diagram: 1. Covered platform; 2. Cover; 3. Steel ladle; 4. Earring; 5. Hydraulic cylinder one; 6. Lifting plate; 7. Hydraulic cylinder two; 8. Sliding plate; 9. Hook; 10. Lifting ring; 11. Semi-enclosed structure hook; 12. Strip hole; 13. Crane lifting ring; 14. Crane rear lifting ring; 15. Guide rod; 16. Fixed slide rail. Detailed Implementation
[0021] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0022] Please see Figures 1 to 5 As shown in the figure, this application provides a ladle capping device, including a capping platform 1, a ladle cap 2, and a ladle 3. A set of ear rings 4 are installed on the right side of the ladle 3. A capping mechanism is provided at the bottom of the capping platform 1. The capping mechanism includes a hydraulic cylinder 5, a lifting plate 6, a hydraulic cylinder 7, a sliding plate 8, three hooks 9, three lifting rings 10, and a set of semi-enclosed hooks 11. The hydraulic cylinder 5 is installed on the bottom left side of the capping platform 1, and its telescopic end moves through the capping platform 1. The lifting plate 6 is installed on the telescopic end of the hydraulic cylinder 5. The hydraulic cylinder 7 is horizontally installed on the left side of the lifting plate 6. The sliding plate 8 is installed on the telescopic end of the hydraulic cylinder 7. The three hooks 9 are staggered and installed on the bottom right side of the sliding plate 8. The three lifting rings 10 are installed on the upper end of the ladle cap 2 and correspond to the positions of the three hooks 9. A set of semi-enclosed hooks 11 is installed on the right side of the ladle cap 2.
[0023] In this embodiment, brackets are installed at both ends of the bottom of the covering platform 1 and fixed inside the factory. When the ladle 3 filled with molten steel is opened to the covering station via the bottom slide rail, the ladle cover 2 is located on the right side of the ladle 3. The extension end of hydraulic cylinder 5 retracts, driving the ladle cover 2 down to a fixed height. Then, the extension end of hydraulic cylinder 7 retracts, driving the ladle cover 2 to move to the left, so that a set of semi-enclosed structure hooks 11 are engaged with a set of lugs 4 of the ladle 3, and the ladle cover 2 covers the ladle 3. Then, hydraulic cylinder 5, in conjunction with hydraulic cylinder 7, can disengage the three hooks 9 from the three lifting rings 10 on the ladle cover 2, and the ladle 3 is opened, completing the ladle 3 covering action.
[0024] In some embodiments, the right side of the covered platform 1 has strip holes 12 corresponding to the three hooks 9, which facilitates the lateral movement of the three hooks 9.
[0025] In some embodiments, a set of overhead crane lifting rings 13 are installed at both ends of the ladle 3, and a rear overhead crane lifting ring 14 is installed on the bottom right side. The overhead crane lifts the set of overhead crane lifting rings 13 at both ends of the ladle 3 to the continuous casting platform. After the continuous casting ladle 3 is completed, the overhead crane lifts the ladle 3 to the slag dumping area to remove some of the slag inside the ladle 3. The secondary hook of the overhead crane hooks up the rear overhead crane lifting ring 14 of the ladle 3, tilting the ladle 3. Due to the tight locking of the hook rings, the ladle cover 2 will not fall off at this time. Figure 6 As shown, the slag removal action is completed.
[0026] In some embodiments, two sets of guide rods 15 are movably inserted on the left side of the covered platform 1. The upper ends of the two sets of guide rods 15 are respectively connected to the lifting plate 6. The two sets of guide rods 15 are used to guide the lifting of the lifting plate 6.
[0027] In some embodiments, a set of fixed slide rails 16 are installed on both sides of the lifting plate 6, and the bottom sides of the sliding plate 8 are slidably installed on a set of fixed slide rails 16 to facilitate the lateral movement of the sliding plate 8.
[0028] In some embodiments, a set of semi-enclosed hooks 11 are designed with a 90° angle. After the slag is poured out of the ladle 3, the overhead crane lifts it to the cover track. The ladle 3 continues to move to the cover station. Hydraulic cylinder 1 5 cooperates with hydraulic cylinder 2 7 to make the three hooks 9 hook onto the three lifting rings 10 on the ladle cover 2. The height of a set of lugs 4 is lower than the height of the ladle 3. At this time, the ladle 3 is opened to the left to separate the semi-enclosed hooks 11 of the ladle cover 2 from the lugs 4 of the ladle 3. Thus, the ladle 3 and the ladle cover 2 are separated, and the ladle 3 moves into the steel tapping process to prepare to receive the next batch of molten steel.
[0029] The above technical solution only embodies the preferred technical solution of this utility model. Any changes that may be made by those skilled in the art to certain parts of it embody the principle of this utility model and fall within the protection scope of this utility model.
Claims
1. A ladle capping device comprising a capping platform (1), a ladle cap (2) and a ladle (3), a set of ears (4) being installed on the right side of the ladle (3), characterized in that, The bottom of the capping platform (1) is provided with a capping mechanism; The capping mechanism comprises a hydraulic cylinder one (5), a lifting plate (6), a hydraulic cylinder two (7), a sliding plate (8), three hooks (9), three lifting rings (10) and a set of half-enclosing structure hooks (11). The hydraulic cylinder one (5) is installed on the left side of the bottom of the capping platform (1) and the telescopic end is movably penetrated through the capping platform (1). The lifting plate (6) is installed on the telescopic end of the hydraulic cylinder one (5). The hydraulic cylinder two (7) is horizontally installed on the left side of the lifting plate (6). The sliding plate (8) is installed on the telescopic end of the hydraulic cylinder two (7). The three hooks (9) are staggered installed on the bottom right side of the sliding plate (8). The three lifting rings (10) are installed on the upper end of the cover (2) and correspond to the positions of the three hooks (9). The set of half-enclosing structure hooks (11) are installed on the right side of the cover (2).
2. The ladle capping device defined in claim 1, characterized in that The capping platform (1) is provided with strip-shaped holes (12) corresponding to the three hooks (9) on the right side.
3. The ladle capping device defined in claim 1, characterized in that The ladle (3) is provided with a set of overhead crane lifting rings (13) on both ends and an overhead crane rear lifting ring (14) on the bottom right side.
4. The ladle capping device defined in claim 1, characterized in that Two sets of guide rods (15) are movably inserted on the left side of the capping platform (1). The upper ends of the two sets of guide rods (15) are connected with the lifting plate (6).
5. The ladle capping device defined in claim 1, characterized in that A set of fixed sliding rails (16) are installed on both sides of the lifting plate (6). The bottom of the sliding plate (8) is slidably installed on the set of fixed sliding rails (16).
6. The ladle capping device defined in claim 1, characterized in that The set of half-enclosing structure hooks (11) are designed as 90° angle structure.