Novel molten metal ladle dumping method and device
By using a secondary lifting sling with a mechanical link structure in metallurgical equipment, automatic occlusion and stable dumping are achieved in high temperature and high humidity environments, and the problems of low efficiency and instability of traditional equipment are solved.
Patent Information
- Application Number
- CN202411609057.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2025-03-04
AI Technical Summary
Traditional metallurgical equipment cannot achieve automatic choking in high temperature and high humidity environments, and the auxiliary lifting spreader is prone to irregular shaking in windy conditions, reducing the efficiency of inverting.
The auxiliary lifting sling with a mechanical linkage structure can be actively adjusted to the avoidance state or the limit state, and the stable dumping of the slag bag is achieved through the lifting control of the main lifting sling.
Without electrical limiting or visual technology, the distance between the secondary lifting spreader and the slag bag is accurately adjusted, which improves the stability and efficiency of the inverted bag, reduces the failure rate, and is suitable for extreme environments.
Smart Images
Figure CN119553015A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of metallurgical equipment, and in particular to a novel method and device for pouring a molten metal ladle. Background Art
[0002] The gantry crane can be used to automatically lift the slag bag on a large scale, which can greatly improve the efficiency of slag dumping. The traditional dumping process can refer to the attached Figure 1 During the dumping process, the slag bag is tilted by controlling the auxiliary lifting device on the left to rise and complete the dumping.
[0003] In the traditional lifting process, the engagement of the auxiliary lifting device needs to be completed manually by connecting it with the slag bag. The bag inversion operation environment is in a high temperature and high humidity environment, and there is a large amount of water mist and steam. The engagement cannot be completed through electronic and electrical technology and visual technology. In addition, the traditional auxiliary hook is a flexible connection with a wire rope. During outdoor operations, irregular shaking caused by wind cannot be avoided, which reduces the efficiency of bag inversion.
[0004] Some designs achieve automatic engagement by installing an inverted hook on the upper end of the slag bag to match the engagement of the auxiliary lifting device; however, the above structure requires a major modification of the existing slag bag structure, which increases the equipment cost; and in actual operation, it is necessary to ensure that the hook is located on the descending path of the auxiliary lifting device, especially the horizontal position relationship between the hook and the engagement needs to be controlled. The distance between the two is initially set and difficult to adjust. If the two are too far or too close, good engagement cannot be achieved, which affects the dumping of the slag bag. Summary of the invention
[0005] In view of the above problems, the present invention provides a new method and device for dumping a molten metal ladle, which can actively adjust to an avoidance state or a limit state through a mechanical connecting rod structure. It can accurately and stably adjust the distance between the auxiliary lifting device and the slag ladle without any costly electrical limit or visual technology, thereby ensuring stable and efficient dumping of the slag ladle.
[0006] To solve the above problems, the technical solution adopted by the present invention is: A novel method for pouring a molten metal ladle comprises the following steps: S1, controlling a main lifting device and an auxiliary lifting device to move to a predetermined position above a slag ladle through a crane; S2, first controlling the auxiliary lifting device to tilt outward in an avoidance state, and after the auxiliary lifting device is in the avoidance state, controlling the main lifting device to descend in a vertical direction to complete the grabbing of the slag ladle, wherein the auxiliary lifting device comprises a connecting arm, wherein a first end of the connecting arm is rotatably connected to the crane, and a second end is provided with an auxiliary lifting hook; S3, After the main lifting device completes grabbing of the slag bag, the main lifting device is controlled to rise in the vertical direction until the slag bag is located above the auxiliary lifting hook; S4, after the slag bag is located above the auxiliary lifting hook, the auxiliary lifting device is controlled to tilt inward and be in a limited state. After the auxiliary lifting device is in the limited state, the slag bag is controlled to descend by the main lifting device. During the descent of the slag bag, the bottom of the slag bag first engages with the auxiliary lifting hook, and then the slag bag as a whole deflects toward the outside with the auxiliary lifting hook as the fulcrum to complete the inverting of the slag.
[0007] A novel molten metal ladle dumping device is used for dumping slag in a slag ladle, comprising a lifting device, a lifting truck is installed at the upper end of the lifting device, a main lifting device and an auxiliary lifting device are installed at the lower end of the lifting truck, the auxiliary lifting device comprises a connecting arm, a first end of the connecting arm is rotatably connected to the lifting truck, and a second end is installed with an auxiliary lifting hook, the auxiliary lifting device has an avoidance state inclined toward the outside and a limiting state inclined toward the inside, and when the auxiliary lifting device is in the limited state, the auxiliary lifting hook can engage and limit the lower end of the slag ladle; the main lifting device comprises a main lifting hook and a lifting control component for controlling the lifting and lowering of the main lifting hook, and after the slag ladle is grabbed by the main lifting hook, the lifting and lowering control component is used to control the main lifting hook and the slag ladle to rise and fall synchronously.
[0008] Preferably, the auxiliary lifting device also includes a first offset control component, a first end of which is connected to the side wall of the connecting arm through a connecting joint, and a second offset control component for adjusting the state of the first offset control component is also installed on the upper end of the crane.
[0009] Preferably, the first deflection control component is a steel rope, and the second deflection control component is a winding device.
[0010] Preferably, a limiting component is installed at the lower end of the slag bag, and a bite component cooperating with the auxiliary lifting hook is installed on the inner side of the limiting component.
[0011] Preferably, the engaging assembly comprises a rod-shaped engaging rod and mounting rods located on both sides of the engaging rod, the mounting rods are connected to the limiting assembly, and the auxiliary lifting hook is arranged at the auxiliary lifting port away from the connecting arm.
[0012] Preferably, the bite rod comprises two symmetrically arranged limiting parts, and a concave limiting area is formed between the two limiting parts, and the inner wall of the limiting area is continuous and smooth.
[0013] Preferably, a mounting opening is formed on a side wall of the mounting rod, and the mounting opening is detachably connected to the limiting assembly via a locking pin.
[0014] Preferably, the main lifting device further comprises a connecting assembly, a first end of which is connected to the lifting control assembly, and a second end of which is rotatably connected to the main lifting hook via a first rotating joint.
[0015] Preferably, the lifting equipment comprises at least two support frames, a lifting platform is installed on the upper end of the support frame, and a lifting track for linear movement of the lifting vehicle is laid on the upper end of the lifting platform.
[0016] The beneficial effects of the present invention are: Compared with the existing technology, the main lifting device is lowered to overturn the slag bag. Compared with the traditional lifting and overturning method of the auxiliary lifting device, the dynamic load and driving power of the auxiliary hook are reduced, and the investment cost is reduced; and the auxiliary lifting device here adopts a rigid lifting device as the main body, and is connected by a single hinge. It has an instantaneous buffering effect when the bag is overturned. At the same time, it can effectively prevent the lifting device from swinging left and right due to equipment vibration, operating inertia, wind blowing, etc., and can be widely used in outdoor environments to improve the efficiency of automatic engagement and unhooking, realize automation and intelligence, and fundamentally eliminate personal safety accidents; the auxiliary lifting device here can actively adjust to an avoidance state or a limit state, and can accurately and stably adjust the distance between the auxiliary lifting device and the slag bag; without any electrical and visual technology, the failure rate is greatly reduced and continuous and stable operation is guaranteed in extreme weather and extreme environments, ensuring the stable and efficient dumping of the slag bag. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the slag pouring process in the prior art.
[0018] Figure 2 It is a schematic diagram of the main structure of the present invention.
[0019] Figure 3 It is a schematic diagram of the top structure of the present invention.
[0020] Figure 4 It is a side structural schematic diagram of the present invention.
[0021] Figure 5 For the present invention Figure 2 A is an enlarged structural diagram of FIG.
[0022] Figure 6 It is a schematic diagram of the slag pouring process of the present invention.
[0023] Figure 7 It is a schematic diagram of the three-dimensional structure of the bite assembly of the present invention.
[0024] In the figure: 100, lifting equipment; 110, support frame; 120, lifting platform; 130, lifting rail; 200, main lifting device; 210, main lifting hook; 211, main lifting port; 212, first rotating joint; 220, connecting assembly; 230, lifting control assembly; 300, auxiliary lifting device; 310, auxiliary lifting hook; 311, auxiliary lifting port; 320, connecting arm; 330, first offset control assembly; 331, connecting joint; 400, slag bag; 410, ear shaft; 420, limit assembly; 421, limit port; 500, lifting vehicle; 510, second rotating joint; 520, second offset control assembly; 600, bite assembly; 610, bite rod; 620, mounting rod; 621, mounting port. DETAILED DESCRIPTION
[0025] The present invention is further described below in conjunction with the accompanying drawings and embodiments.
[0026] The slag bag can contain the molten slag and control the slag to continuously cool in a regular container.
[0027] The slag solidifies after being cooled to a predetermined temperature. In the final stage of slag cooling, it needs to be poured out into a slag bag for subsequent recycling.
[0028] The gantry crane can be used to automatically lift the slag bag on a large scale, which can greatly improve the efficiency of slag dumping. The traditional dumping process can refer to the attached Figure 1 During the dumping process, the slag bag is tilted by controlling the auxiliary lifting device on the left to rise and complete the dumping.
[0029] In the traditional lifting process, the engagement of the auxiliary lifting device needs to be completed manually by connecting it with the slag bag. The bag-turning operation environment is in a high temperature and high humidity environment, and there is a large amount of water mist and steam, which reduces the efficiency of bag-turning.
[0030] Some designs achieve automatic engagement by installing an inverted hook on the upper end of the slag bag to match the engagement of the auxiliary lifting device; however, the above structure requires a major modification of the existing slag bag structure, which increases the equipment cost; and in actual operation, it is necessary to ensure that the hook is located on the descending path of the auxiliary lifting device, especially the horizontal position relationship between the hook and the engagement needs to be controlled. The distance between the two is initially set and difficult to adjust. If the two are too far or too close, good engagement cannot be achieved, which affects the dumping of the slag bag.
[0031] In order to solve the above problems, a new method for pouring molten metal ladle is provided, comprising the following steps: S1. Control the main lifting device 200 and the auxiliary lifting device 300 to move to a predetermined position above the slag bag 400 through the crane 500; control the main lifting device 200 to face the slag bag 400, so as to complete the grabbing of the slag bag 400.
[0032] S2, first control the auxiliary lifting device 300 to tilt outward in an avoidance state, and after the auxiliary lifting device 300 is in the avoidance state, control the main lifting device 200 to descend in the vertical direction to complete the grabbing of the slag bag 400, and then Figure 5 The auxiliary lifting device 300 on the middle left side is in an evasive state, and can be staggered with the slag bag 400 during the lifting and moving process, ensuring that the main lifting device 200 can normally grab the slag bag 400.
[0033] The auxiliary lifting device 300 includes a connecting arm 320, a first end of which is rotatably connected to the crane 500, and a second end is equipped with an auxiliary lifting hook 310, which can be engaged and locked with the bottom of the slag bag 400 to control the tilt of the slag bag 400 to complete the dumping of the slag.
[0034] S3. After the main lifting device 200 completes grabbing of the slag bag 400, the main lifting device 200 is controlled to rise in the vertical direction until the slag bag 400 is located above the auxiliary lifting hook 310; specifically, the bottom of the slag bag 400 is controlled to be located above the auxiliary lifting hook 310, so as to facilitate the subsequent engagement and locking of the slag bag 400 and the auxiliary lifting hook 310.
[0035] S4, after the slag bag 400 is located above the auxiliary lifting hook 310, the auxiliary lifting hook 300 is controlled to tilt inwards to be in a limited position. Figure 5 The auxiliary lifting device 300 on the middle right side is in a limited state. At this time, the auxiliary lifting hook 310 is located on the moving path of the slag bag 400 descending.
[0036] When the auxiliary lifting device 300 is in the limited state, the slag bag 400 is controlled to descend through the main lifting device 200. During the descent of the slag bag 400, the bottom of the slag bag 400 first engages with the auxiliary lifting hook 310, and then the slag bag 400 as a whole deflects toward the outside with the auxiliary lifting hook 310 as the fulcrum to complete the inversion of the slag.
[0037] After the first side of the bottom of the slag bag 400 is at the limit position of the auxiliary lifting hook 310, the slag bag 400 as a whole deflects around the limited side toward the second side of the bottom of the slag bag 400. During this process, the slag bag 400 tilts toward the outside, ultimately achieving the dumping of the slag in the slag bag 400.
[0038] By adopting the above method, the main lifting device 200 is lowered to overturn the slag bag. Compared with the traditional lifting and overturning method of the auxiliary lifting device 300, the dynamic load and driving power of the auxiliary hook are reduced, and the investment cost is reduced; and the auxiliary lifting device 300 here adopts a rigid lifting device as the main body, and is connected by a single hinge. It has an instantaneous buffering effect when the bag is overturned. At the same time, it can effectively prevent the lifting device from swinging left and right due to equipment vibration, operating inertia, wind blowing, etc., and can be widely used outdoors to improve the efficiency of automatic engagement and unhooking, and realize automation and intelligence; the auxiliary lifting device 300 here can actively adjust to an avoidance state or a limit state, and can accurately and stably adjust the distance between the auxiliary lifting device 300 and the slag bag 400, ensuring the stable and efficient dumping of the slag bag 400.
[0039] Refer to the attached Figure 2 -Attached Figure 7 A new type of molten metal ladle dumping device is used to dump the slag in the slag ladle 400, including a lifting device 100, a crane 500 is installed on the upper end of the lifting device 100, and a main lifting device 200 and an auxiliary lifting device 300 are installed on the lower end of the crane 500. The main lifting device 200 and the auxiliary lifting device 300 cooperate to complete the lifting and dumping of the slag ladle 400.
[0040] Specifically, the auxiliary lifting sling 300 includes a connecting arm 320, wherein the connecting arm 320 is made of a rigid structure, the first end of the connecting arm 320 is rotatably connected to the crane 500, and the second end is equipped with an auxiliary lifting hook 310, and the auxiliary lifting sling 300 has an avoidance state inclined toward the outside and a limit state inclined toward the inside. When the auxiliary lifting sling 300 is in the limit state, the auxiliary lifting hook 310 can engage and limit the lower end of the slag bag 400; For details, please refer to the attached Figure 5 The auxiliary lifting sling 300 on the left side is in an avoidance state, and the auxiliary lifting sling 300 on the right side is in a limit state (there is only one auxiliary lifting sling 300 in the actual operation process, and the auxiliary lifting sling 300 on the left side is a dotted line). The switching between the avoidance state and the limit state can be completed by controlling the auxiliary lifting sling 300 to deflect to different positions.
[0041] Compared with the flexible sling with traditional steel cable as the main body, the auxiliary lifting sling 300 here is a rigid sling. The auxiliary lifting sling 300 can move along a predetermined path to achieve stable avoidance and stable engagement with the slag bag 400, ensuring the normal, stable and efficient dumping of the slag bag 400.
[0042] Specifically, the main lifting device 200 includes a main lifting hook 210 and a lifting control component 230 for controlling the lifting of the main lifting hook 210. After the main lifting hook 210 completes the grabbing of the slag bag 400, the lifting control component 230 controls the main lifting hook 210 and the slag bag 400 to rise synchronously. The lifting control component 230 here can select the existing lifting control structure, control the main lifting hook 210 to move to the bottom to complete the grabbing of the slag bag 400, and control the slag bag 400 to rise to a predetermined height to realize the grabbing and transportation of the slag bag 400.
[0043] Specifically, the auxiliary lifting device 300 also includes a first offset control component 330, the first end of the first offset control component 330 is connected to the side wall of the connecting arm 320 through a connecting joint 331, and the upper end of the crane 500 is also equipped with a second offset control component 520 for adjusting the state of the first offset control component 330.
[0044] The first offset control component 330 can be used to adjust the deflection angle of the connecting arm 320 from the outside, which can replace the electrodeposition at the shaft, realize efficient deflection control of the connecting arm 320, reduce the control load, and improve the accuracy of the deflection control of the connecting arm 320.
[0045] Preferably, the first offset control component 330 is a steel rope, and the second offset control component 520 is a winding device. The winding device can be selected as a traditional winch. In the process of controlling the directional rotation of the winding device, the steel rope is tightened to achieve control of the position of the connecting arm 320.
[0046] Through the above structural design, the main control structure is installed on the upper end of the crane 500, and the deflection angle of the connecting arm 320 can be efficiently controlled by winding the steel rope. The structure is simple and reliable, and the control accuracy is high.
[0047] A limiting assembly 420 is installed at the lower end of the slag bag 400, and a bite assembly 600 that cooperates with the auxiliary lifting hook 310 is installed on the inner side of the limiting assembly 420. The bite assembly 600 cooperates with the auxiliary lifting hook 310 to complete the bite limit between the auxiliary lifting hook 310 and the slag bag 400, and can limit the first side of the lower end of the slag bag 400, so that the slag bag 400 can be tilted toward the second side as a whole to complete the dumping of the slag.
[0048] The bite assembly 600 is arranged perpendicular to the attached Figure 5 The auxiliary lifting hook 310 extends horizontally in the direction of the engaging hook 600 and has a longer lateral distance, thereby reducing the difficulty of the engaging and capturing between the auxiliary lifting hook 310 and the engaging assembly 600.
[0049] Specifically, the bite assembly 600 includes a rod-shaped bite rod 610 and installation rods 620 located on both sides of the bite rod 610, the installation rods 620 are connected to the limit assembly 420, and the auxiliary lifting hook 310 is arranged on the auxiliary lifting opening 311 away from the connecting arm 320. The installation limit of the bite rod 610 can be completed through the installation rods 620 on both sides, thereby ensuring the stability of the overall structure of the bite assembly 600; the bite rod 610 is designed to be compatible with the auxiliary lifting opening 311 on the surface of the auxiliary lifting hook 310, where the auxiliary lifting opening 311 is a bent hook design, and during the deflection of the slag bag 400, the installation rod 620 is continuously located in the auxiliary lifting opening 311, and the two are in a locked and limited state, further ensuring the stability of the dumping of the slag bag 400.
[0050] Furthermore, the bite rod 610 includes two symmetrically arranged limiting portions, and a concave limiting area is formed between the two limiting portions, and the inner wall of the limiting area is continuous and smooth.
[0051] By designing the above structure, the friction between the auxiliary lifting hook 310 and the bite rod 610 can be reduced. At the same time, during the dregs 400 descending process, the bite rod 610 contacts the auxiliary lifting hook 310 and moves perpendicular to the attached Figure 5 After a deviation occurs in the direction shown, the horizontal position of the slag bag 400 can be adjusted with the cooperation of the concave bite rod 610, and finally the auxiliary lifting hook 310 is controlled to contact the vertex between the two limiting parts to complete the locking and limiting.
[0052] Through the above-mentioned structural design, when the position of the auxiliary lifting sling 300 is determined, the engaging rod 610 can be used to limit the descending slag bag 400 to ensure that the slag bag 400 is located at a predetermined position to complete the dumping of the slag. The entire limit adjustment process is automatically carried out as the slag bag 400 descends, without the need for manual adjustment. It is simple, efficient and reliable.
[0053] An installation opening 621 is opened on the side wall of the installation rod 620, and the installation opening 621 is detachably connected to the limit assembly 420 through a locking pin. Inserting the pin into the installation opening 621 can cooperate with the limit assembly 420 to complete the locking and limiting. In order to further enhance the stability of the overall structure, the pin here can be further fixed by welding or locked by bolts to ensure that the bite assembly 600 as a whole is in a predetermined posture and in a stable state.
[0054] Specifically, the main lifting device 200 also includes a connecting component 220, a first end of the connecting component 220 is connected to the lifting control component 230, and a second end is rotatably connected to the main lifting hook 210 via a first rotating joint 212. By setting the connecting component 220, during the deflection of the slag bag 400, the angle of the main lifting hook 210 can be adaptively adjusted, thereby reducing the offset angle of the top lifting control component 230 and improving the effect of slag dumping control.
[0055] The lifting equipment 100 here includes at least two support frames 110, and a lifting platform 120 is installed on the upper end of the support frame 110. A lifting track 130 for linear movement of the lifting vehicle 500 is laid on the upper end of the lifting platform 120. The lifting equipment 100 is a large gantry lifting equipment with a large volume and can automatically complete the lifting and dumping of multiple slag bags 400. The use of this set of equipment improves the efficiency of slag dumping and the efficiency of slag bag transportation and turnover.
[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims
1. A novel method for pouring molten metal ladle, characterized in that: The steps include: S1, controlling the main lifting device (200) and the auxiliary lifting device (300) to move to a predetermined position above the slag bag (400) by using a crane (500); S2, first controlling the auxiliary lifting sling (300) to tilt outward to be in an avoidance state, and after the auxiliary lifting sling (300) is in the avoidance state, controlling the main lifting sling (200) to descend in a vertical direction to complete the grabbing of the slag bag (400), the auxiliary lifting sling (300) comprising a connecting arm (320), the first end of the connecting arm (320) being rotatably connected to the crane (500), and the second end of which is mounted an auxiliary lifting hook (310); S3, after the slag bag (400) is grabbed by the main lifting device (200), the main lifting device (200) is controlled to rise in a vertical direction until the slag bag (400) is located above the auxiliary lifting hook (310); S4. After the slag bag (400) is located above the auxiliary lifting hook (310), the auxiliary lifting device (300) is controlled to tilt inwards and be in a limited position. After the auxiliary lifting device (300) is in the limited position, the slag bag (400) is controlled to descend by the main lifting device (200). During the descent of the slag bag (400), the bottom of the slag bag (400) first engages with the auxiliary lifting hook (310), and then the slag bag (400) as a whole is deflected outwards with the auxiliary lifting hook (310) as a fulcrum to complete the inverting of the slag bag.
2. A novel molten metal ladle dumping device, used for dumping slag in a slag ladle (400), comprising a lifting device (100), a crane (500) being installed at the upper end of the lifting device (100), and a main lifting device (200) and an auxiliary lifting device (300) being installed at the lower end of the crane (500), characterized in that: The auxiliary lifting sling (300) comprises a connecting arm (320), a first end of the connecting arm (320) being rotatably connected to the lifting vehicle (500), and a second end of the connecting arm (320) being mounted with an auxiliary lifting hook (310). The auxiliary lifting sling (300) has an avoidance state tilted toward the outside and a limiting state tilted toward the inside. When the auxiliary lifting sling (300) is in the limiting state, the auxiliary lifting hook (310) can engage and limit the lower end of the slag bag (400); The main lifting device (200) comprises a main lifting hook (210) and a lifting control component (230) for controlling the lifting of the main lifting hook (210). After the main lifting hook (210) has finished grabbing the slag bag (400), the lifting control component (230) controls the main lifting hook (210) and the slag bag (400) to be lifted synchronously.
3. The novel molten metal ladle pouring device according to claim 2 is characterized in that: The auxiliary lifting device (300) further comprises a first offset control component (330), a first end of which is connected to a side wall of the connecting arm (320) via a connecting joint (331), and a second offset control component (520) for adjusting the state of the first offset control component (330) is also installed at the upper end of the lifting vehicle (500).
4. The novel molten metal ladle pouring device according to claim 3 is characterized in that: The first deflection control component (330) is a steel rope, and the second deflection control component (520) is a winding device.
5. The novel molten metal ladle pouring device according to claim 2 is characterized in that: A limit assembly (420) is installed at the lower end of the slag bag (400), and a bite assembly (600) that cooperates with the auxiliary lifting hook (310) is installed inside the limit assembly (420).
6. The novel molten metal ladle pouring device according to claim 5 is characterized in that: The bite assembly (600) comprises a rod-shaped bite rod (610) and mounting rods (620) located on both sides of the bite rod (610); the mounting rods (620) are connected to the limit assembly (420); and the auxiliary lifting hook (310) is arranged at the auxiliary lifting port (311) on a side away from the connecting arm (320).
7. The novel molten metal ladle pouring device according to claim 6 is characterized in that: The bite rod (610) comprises two symmetrically arranged limiting parts, a concave limiting area is formed between the two limiting parts, and the inner wall of the limiting area is continuous and smooth.
8. The novel molten metal ladle pouring device according to claim 6 is characterized in that: A mounting opening (621) is formed on a side wall of the mounting rod (620), and the mounting opening (621) is detachably connected to the limiting assembly (420) via a locking pin.
9. The novel molten metal ladle pouring device according to claim 2 is characterized in that: The main lifting device (200) further comprises a connecting assembly (220), wherein a first end of the connecting assembly (220) is connected to the lifting control assembly (230), and a second end is rotationally connected to the main lifting hook (210) via a first rotating joint (212).
10. The novel molten metal ladle pouring device according to claim 2, characterized in that: The lifting device (100) comprises at least two support frames (110), a lifting platform (120) being installed on the upper end of the support frames (110), and a lifting track (130) for linear movement of the lifting vehicle (500) being laid on the upper end of the lifting platform (120).