A high temperature liquid ladle changer

By designing a high-temperature liquid ladle-turning lifting device with a guide frame, support frame, and drive unit, the instability and safety hazards in the ladle-turning process were solved, realizing efficient and safe ladle-turning operations and improving the safety and efficiency of steelmaking and casting processes.

CN224377423UActive Publication Date: 2026-06-19HENAN MINE CRANE +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN MINE CRANE
Filing Date
2025-06-24
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing high-temperature liquid ladle-turning lifting devices are unstable and pose safety hazards during the ladle-turning process, which can easily lead to the spillage of molten steel. They are also highly dangerous to operate and have low production efficiency.

Method used

A high-temperature liquid ladle flipping lifting device was designed, comprising a guide frame, a support frame, a mounting frame, a drive device, and a rotating plate. The guide frame and support frame provide stable support, while the drive device and rotating plate enable the ladle flipping operation, reducing manual intervention and improving safety and production efficiency.

Benefits of technology

It improves the safety and production efficiency of the high-temperature liquid repacking process, reduces the risk of accidents, and ensures the stability and safety of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of ladle lifting equipment, specifically to a ladle lifting equipment for high-temperature liquids. It includes a guide frame mounted on a crossbeam, a support frame at the lower part of the guide frame, mounting frames at both ends of the support frame, a hanging plate for suspending the ladle on the inner side of the mounting frame, a driving device at the bottom of the mounting frame, and a rotating plate at the output end of the driving device. The rotating plate is connected to the lower part of the ladle. This reduces manual intervention, improves safety during steelmaking, ironmaking, and casting processes, significantly increases production efficiency, and reduces the risk of accidents.
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Description

Technical Field

[0001] This utility model relates to the field of bag-flipping and lifting equipment, specifically to a bag-flipping and lifting equipment for high-temperature liquids. Background Technology

[0002] With the rapid development of smelting technologies such as steelmaking and ironmaking, production line processes are gradually becoming more automated. Molten metal is typically lifted using gantry hook lifting devices, which use two stacked plate hooks below the crossbeam to hook the trunnions of the ladle for hoisting. Throughout the entire operation, the lifting device is flexibly connected to the trolley's lifting mechanism only through a wire rope. During operation, the positioning accuracy is poor, requiring constant manual monitoring to prevent accidents.

[0003] Furthermore, in the existing technology, during the ladle-turning process, a secondary hook needs to be set on the trolley, and a ladle-turning hook is suspended to hook the trunnion at the corresponding position of the ladle. The ladle-turning process is achieved through the action of the secondary hook. This method has safety hazards and is prone to shaking, with some molten steel spilling onto the outside of the furnace. The operation is dangerous and can easily cause production accidents. Therefore, this technical solution is proposed to improve the process. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies where steel ladles are unstable and prone to danger during the ladle-turning process, and to provide a ladle-turning lifting device for high-temperature liquids.

[0005] To achieve the above objectives, this utility model embodiment adopts the following technical solution: a high-temperature liquid ladle lifting device, including a guide frame mounted on a crossbeam, a support frame mounted on the lower part of the guide frame, mounting frames mounted downwards at both ends of the support frame, a hanging plate for hanging a ladle mounted on the inner side of the mounting frame, a driving device mounted at the bottom of the mounting frame, a rotating plate mounted at the output end of the driving device, and the rotating plate connected to the lower part of the ladle.

[0006] Furthermore, the upper part of the support frame is provided with a pulley block for connecting the crane, and the side of the guide frame is provided with multiple wheels.

[0007] Furthermore, a crossbeam is provided on the inner side of the mounting frame, the top of the hanging plate is connected to the crossbeam, and a hook for hanging a ladle is provided on the lower part of the hanging plate, with an opening at the top of the hook.

[0008] Furthermore, the driving device includes a drive motor disposed on the outside of the mounting frame, a reducer disposed at the lower part of the mounting frame, a connecting shaft disposed at the output end of the reducer, and the connecting shaft being coaxially disposed with the hook at the lower part of the hanging plate.

[0009] Furthermore, a lever is provided laterally at the lower part of the rotating plate, and the lever is connected to a lug provided on the ladle.

[0010] The beneficial effects of this utility model embodiment are as follows: A guide frame is provided on the crossbeam, and a support frame is fixedly connected to the lower part of the guide frame, providing a limit for the support frame and preventing the ladle from shaking significantly when moving or tilting, greatly improving the safety of use. In addition, the support frame is arranged horizontally, providing a support structure and space for lifting the ladle and ensuring the effect of use. A drive device is provided at the lower part of the mounting frame, and a rotating plate is provided at the output end of the drive device, i.e., the connecting shaft. An opening is provided at the hook on the upper part of the rotating plate to facilitate the entry of the trunnion. A lever is provided horizontally at the lower part of the rotating plate, and the lever is connected to the hanging ear provided on the ladle. The lever on the rotating plate drives the ladle to rotate together through the hanging ear, thereby realizing the ladle flipping operation. Compared with the existing operation of using a secondary hook to hang the ladle, it reduces manual intervention, improves the safety of steelmaking, ironmaking and casting processes, greatly improves production efficiency, and reduces the risk of accidents. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a side view of the structure of this utility model;

[0013] Figure 3 This is a schematic diagram of the hanging plate structure of this utility model;

[0014] In the diagram: 1. Guide frame; 101. Wheel; 2. Support frame; 201. Horizontal frame; 202. Hanging plate; 3. Mounting frame; 301. Drive motor; 302. Reducer; 303. Rotating plate; 304. Lever; 4. Trunnion; 401. Hanging lug. Detailed Implementation

[0015] The preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely for explaining the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0016] See Figures 1 to 3This utility model discloses a high-temperature liquid ladle lifting device. A crossbeam is fixedly mounted on a gantry crane and moves with the crane. A guide frame 1 is mounted on the crossbeam, and a support frame 2 is fixedly connected to the lower part of the guide frame 1. A pulley block for connecting the crane is mounted on the upper part of the support frame 2. The pulley block is connected to the lifting mechanism of the crane through a wire rope to realize the lifting and lowering operation of the lifting device. Multiple wheels 101 are mounted on the side of the guide frame 1. These wheels 101 slide along the H-shaped steel on the crossbeam, making the up-and-down movement of the guide frame 1 stable and providing a limit for the support frame 2 to prevent large-scale shaking of the ladle when moving or tilting, greatly improving the safety of use. Furthermore, the support frame 2 is arranged horizontally, providing a support structure and space for lifting the ladle and ensuring the effectiveness of use.

[0017] Mounting frames 3 extend downwards from both ends of the support frame 2. The mounting frames 3 are vertical structures, symmetrically distributed at both ends of the support frame 2. Inside the mounting frames 3, hanging plates 202 for suspending the ladle are provided. A horizontal frame 201 is fixedly installed inside the mounting frames 3. The top of the hanging plates 202 is fixedly connected to the horizontal frame 201, ensuring that the hanging plates 202 can be stably installed on the mounting frames 3. The length of the horizontal frame 201 is set according to the diameter of the ladle. Adjusting the distance between the two oppositely positioned hanging plates 202 facilitates the installation of the ladle. The lower part of the lifting plate 202 is equipped with hooks for hanging the ladle. The upper part of the hook is designed to be open to facilitate the hooking operation with the trunnion 4 on the ladle. During the lifting process, the ladle can be firmly hung. In use, the lower part of the lifting plate 202 is first lowered below the trunnion 4 on the side of the ladle, then moved laterally so that the hook is below the trunnion 4, and then moved upward so that the trunnion 4 is connected with the hook at the lower part of the lifting plate 202, thus completing the operation of hanging the ladle. It is convenient to use and has a reliable structure.

[0018] The lower part of the mounting frame 3 is equipped with a drive device, which is the power component for realizing the bag-flipping operation. The drive device mainly consists of a drive motor 301 located on the outside of the mounting frame 3, a reducer 302 located at the bottom of the mounting frame 3, and a connecting shaft at the output end of the reducer 302. The drive motor 301 provides the power source for the entire drive device and is connected to the reducer 302 through a transmission mechanism. The function of the reducer 302 is to convert the high-speed rotational motion output by the drive motor 301 into a low-speed, high-torque rotational motion to meet the needs of the bag-flipping operation. The output end of the reducer 302 is connected to the connecting shaft, which is coaxially set with the hook at the bottom of the hanging plate 202, so that the steel ladle rotates with the trunnion 4 as the center when flipping the ladle, reducing stress generation and improving the overall safety of the equipment. A rotating plate 303 is provided on the output end of the drive device, i.e., on the connecting shaft. The upper part of the rotating plate 303 has an opening at the hook to facilitate the entry of the trunnion 4. A lever 304 is horizontally provided on the lower part of the rotating plate 303. The lever 304 is connected to the hanging ear 401 provided on the ladle. The hanging ear 401 is located below the trunnion 4 and has an opening at the bottom. When the trunnion 4 is connected to the hanging plate 202, the lever 304 enters the inside of the hanging ear 401 through the opening. When the drive motor 301 starts, it drives the connecting shaft to rotate through the transmission of the reducer 302, thereby causing the rotating plate 303 to rotate as well. The lever 304 on the rotating plate 303 drives the ladle to rotate together through the hanging ear 401, thereby realizing the ladle flipping operation. Compared with the existing operation of using a secondary hook to hang the ladle, this reduces manual intervention, improves the safety of steelmaking, ironmaking and casting processes, greatly improves production efficiency, and reduces the risk of accidents.

[0019] In practical applications, when it is necessary to lift the ladle, the lifting device is moved to the side of the ladle, and the trunnion 4 of the ladle is hooked on the bottom of the lifting plate 202. The lever 304 is engaged with the hanging lug 401 below. Then, the lifting mechanism of the crane is started, and the ladle is lifted by the pulley block and wire rope. When it is necessary to turn the ladle, the drive motor 301 is started, and the drive device drives the rotating plate 303 to rotate. The lever 304 on the rotating plate 303 drives the ladle to turn through the hanging lug 401, and the molten metal in the ladle is poured out. The whole operation process is safe and stable, which can effectively avoid the safety hazards and molten steel spillage problems of traditional ladle turning methods, and improve production efficiency and safety.

[0020] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0023] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A high-temperature liquid lifting and turning device, comprising a guide frame mounted on a crossbeam, characterized in that: The guide frame is provided with a support frame at its lower part, and mounting frames are provided at both ends of the support frame downwards. The inner side of the mounting frame is provided with a hanging plate for hanging the ladle. The bottom of the mounting frame is provided with a driving device, and the output end of the driving device is provided with a rotating plate, which is connected to the lower part of the ladle.

2. The high-temperature liquid lifting and turning device according to claim 1, characterized in that: The upper part of the support frame is provided with a pulley block for connecting the crane, and the side of the guide frame is provided with multiple wheels.

3. The high-temperature liquid lifting and turning device according to claim 1, characterized in that: The mounting frame has a horizontal frame on its inner side, the top of the hanging plate is connected to the horizontal frame, the lower part of the hanging plate is provided with a hook for hanging a steel ladle, and the upper part of the hook is open.

4. The high-temperature liquid lifting and turning device according to claim 3, characterized in that: The driving device includes a drive motor disposed on the outside of the mounting frame, a reducer disposed at the lower part of the mounting frame, a connecting shaft disposed at the output end of the reducer, and the connecting shaft being coaxially disposed with the hook at the lower part of the hanging plate.

5. The high-temperature liquid lifting and turning device according to claim 4, characterized in that: A lever is horizontally arranged at the lower part of the rotating plate, and the lever is connected to a lug set on the ladle.