Round billet continuous casting tundish quick change device

Abstract

The utility model belongs to the technical field of metallurgical equipment, and discloses a round billet continuous casting tundish quick-change device which comprises a machine body, a hanging platform, a hanging connecting assembly and a quick-change connecting piece. The hanging platform is movably arranged on the machine body in the X direction, the Y direction and the Z direction, every two of the X direction, the Y direction and the Z direction are perpendicular, and the Z direction is the vertical direction. The multiple hanging connecting assemblies are arranged in the X direction at intervals, the upper ends of the multiple hanging connecting assemblies are connected to the hanging platform in the mode that the intervals are adjustable, and the lower ends of the multiple hanging connecting assemblies are detachably connected with the quick-change connecting pieces. By arranging a plurality of hanging connecting assemblies, a plurality of quick-change connecting pieces can be hoisted at the same time, simultaneous operation of a plurality of casting furnaces is achieved, the time interval of production operation is shortened, and the working efficiency and the casting quality of continuous casting billets are improved; the distance between the hanging connecting assemblies is adjustable, and the position of the quick-change connecting piece can be flexibly adjusted according to the distance between the foundry furnaces.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgical equipment, in particular to a round billet continuous casting tundish quick-change device. Background Art

[0002] During the continuous casting of steel, the tundish is used to pour molten steel into the crystallizer. When the working time of the tundish reaches the requirements of the technical specifications, or the molten steel in the tundish is lower than the remaining amount required by the technical specifications, the old tundish needs to be removed, a quick-change connector is placed in the molten steel in the crystallizer, and a new tundish is replaced. The quick-change connector can connect the previously cast billet with the newly cast billet, ensuring the accuracy of the casting position after replacing the tundish, realizing the rapid replacement of the tundish, reducing the loss of the head and tail billets of the continuous casting and the time interval between the two castings, and improving production efficiency.

[0003] In the prior art, a quick-change connector is often transported to a target position by hanging it with a lifting equipment so that it can be inserted into the molten steel in the crystallizer. This method takes a long time and can only carry one quick-change connector at a time. A plurality of crystallizers are usually arranged side by side in a casting plant. If a plurality of quick-change connectors are fixed on the hanging equipment at the same time, the spacing between the quick-change connectors and the spacing between the crystallizers are not compatible. The above scheme cannot lower the quick-change connectors into a plurality of crystallizers at the same time, cannot meet the simultaneous operation of a plurality of casting furnaces, has low work efficiency, and will affect the quality of the continuous casting billets. Utility Model Content

[0004] The purpose of the utility model is to provide a quick-change device for a round billet continuous casting tundish, which can simultaneously lift multiple quick-change connectors, enable multiple casting furnaces to operate simultaneously, improve work efficiency, reduce the time interval between production operations, and help improve the casting quality of the continuous casting billets; and the spacing of the hanging connection components is adjustable, and the position of the quick-change connector can be flexibly adjusted according to the spacing between the casting furnaces, and has a wide range of applications.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A round billet continuous casting tundish quick-change device, the tundish is used to pour molten steel into a crystallizer, comprising:

[0007] Body;

[0008] A hanging platform is movably arranged on the machine body along the X direction, the Y direction and the Z direction; the X direction, the Y direction and the Z direction are perpendicular to each other, and the Z direction is a vertical direction;

[0009] A plurality of hanging connection components are arranged at intervals along the X direction, and the upper ends of the plurality of hanging connection components are connected to the hanging platform at adjustable intervals;

[0010] A quick-change connector is detachably connected to the lower end of the hanging connection assembly; the quick-change connector can be lowered into the crystallizer to connect the steel billets cast by the front and rear tundishes.

[0011] Optionally, the number of the hanging connection components is an odd number, the hanging connection component located in the middle is fixedly connected to the hanging platform, and the remaining hanging connection components are movably connected to the hanging platform along the X direction;

[0012] Alternatively, the number of the hanging connection components is an even number, and all of the hanging connection components are movably connected to the hanging platform along the X direction.

[0013] Optionally, the round billet continuous casting tundish quick-change device further comprises a driving mechanism disposed on the hanging platform, and the driving mechanism is used to drive the hanging connection assembly to move along the X direction.

[0014] Optionally, the driving mechanism includes a first motor, a gear and a rack, and the hanging platform is provided with a first guide rail extending along the X direction;

[0015] The rack extends along the X direction, the gear transmission is connected to the output end of the first motor, and the gear is meshed with the rack, the housing of the first motor is slidably matched with the first guide rail along the X direction, and the housing of the first motor is connected to the upper end of the suspension connection assembly.

[0016] Optionally, the driving mechanism includes a second motor, a lead screw and a nut, the housing of the second motor is arranged on the hanging platform, the lead screw extends along the X direction, the output end of the second motor is drivingly connected to the lead screw, the nut is sleeved on the lead screw, and the nut is connected to the upper end of the hanging connection assembly;

[0017] The lead screw can rotate under the driving of the second motor to drive the nut to move along the lead screw.

[0018] Optionally, a second guide rail extending along the X direction is provided on the hanging platform, and the second guide rail is slidably matched with the hanging connection assembly.

[0019] Optionally, the hanging connection assembly includes a sliding member, a hanging chain and a hook;

[0020] The sliding member is arranged on the hanging platform; at least three hanging chains are arranged, the upper end of each hanging chain is connected to the sliding member, and the lower end of each hanging chain is provided with the hook, and the hook is detachably hooked on the quick-change connector.

[0021] Optionally, each of the hanging chains has the same length.

[0022] Optionally, the round billet continuous casting tundish quick-change device also includes a safety rope, and at least one safety rope is provided corresponding to each of the hanging connection components, one end of the safety rope is connected to the hanging platform, and the other end is connected to the lower end of the hanging chain.

[0023] Optionally, a hooking groove is provided on the quick-change connector, and the hook can be hooked into the hooking groove.

[0024] Beneficial effects of the utility model:

[0025] The utility model proposes a round billet continuous casting tundish quick-change device, which can simultaneously lift multiple quick-change connectors by setting multiple hanging connection components, and realize the simultaneous operation of multiple casting furnaces, which is beneficial to reducing the time interval of production operations, improving work efficiency and the casting quality of continuous casting billets; the multiple hanging connection components are set to have adjustable spacing, and the positions of the quick-change connectors can be flexibly adjusted according to the spacing between the multiple casting furnaces, so that the quick-change connectors can be simultaneously lowered in the crystallizers of multiple casting furnaces, which helps to speed up the production rhythm and is conducive to the batch production of round billets. The spacing between multiple crystallizers in different round billet continuous casting plants may be different. By adjusting the spacing between the hanging connection components, the device can be applied to different round billet continuous casting plants, and has strong versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a first view of the round billet continuous casting tundish quick-change device provided by the embodiment of the utility model;

[0027] Figure 2 This is a second view of the round billet continuous casting tundish quick-change device provided by the embodiment of the utility model;

[0028] Figure 3 It is a structural schematic diagram of a driving mechanism provided by an embodiment of the utility model;

[0029] Figure 4 It is a schematic diagram of the structure of the hanging connection assembly provided by an embodiment of the utility model;

[0030] Figure 5 This is a third view of the round billet continuous casting tundish quick-change device provided by the embodiment of the utility model;

[0031] Figure 6 It is a structural schematic diagram of another driving mechanism provided by an embodiment of the utility model.

[0032] In the figure:

[0033] 1. Hanging platform;

[0034] 2. Suspension connection assembly; 21. Sliding member; 22. Suspension chain; 23. Hook;

[0035] 3. Quick-change connector; 31. Hooking slot;

[0036] 4. Driving mechanism; 41. First motor; 42. Gear; 43. Rack; 44. Second motor; 45. Lead screw; 46. Nut;

[0037] 5. Safety rope. DETAILED DESCRIPTION

[0038] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0039] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0041] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0042] Embodiment 1

[0043] like Figure 1 and Figure 2 As shown, this embodiment provides a quick-change device for a round billet continuous casting tundish. During the continuous casting of steel, the tundish is used to pour molten steel into the crystallizer. When the working time of the tundish reaches the requirements of the technical specifications, or the molten steel in the tundish is lower than the remaining amount required by the technical specifications, a new tundish needs to be replaced. The quick-change device for a round billet continuous casting tundish includes a machine body (not shown in the figure), a hanging platform 1, a hanging connection assembly 2 and a quick-change connector 3. Among them, the hanging platform 1 is arranged on the machine body, and the machine body can drive the hanging platform 1 to move along the X direction, the Y direction and the Z direction. The X direction, the Y direction and the Z direction are perpendicular to each other, and the Z direction is the vertical direction. A plurality of hanging connection assemblies 2 are arranged at intervals along the X direction, and the upper ends of the plurality of hanging connection assemblies 2 are adjustably connected to the hanging platform 1, and the position of the hanging connection assembly 2 can be flexibly adjusted according to the spacing between the multiple casting furnaces of the round billet continuous casting machine. There are multiple quick-change connectors 3, each of which can be detachably connected to the lower end of the hanging connection assembly 2. The quick-change connector 3 can be lowered into the crystallizer to connect the steel billets cast by the front and rear tundishes.

[0044] When a new tundish needs to be replaced, first stop casting the old tundish and remove it, then connect the lower end of each hanging connection assembly 2 to a corresponding quick-change connector 3, and adjust the positions of the multiple quick-change connectors 3 according to the spacing between the multiple casting furnaces of the round billet continuous casting machine, and the machine body drives the hanging platform 1 along the X and Y directions so that the multiple quick-change connectors 3 are vertically opposite to the multiple crystallizers, then the machine body drives the hanging platform 1 to move along the Z direction (i.e. vertically), lower the quick-change connector 3 into the crystallizer, and finally move the new tundish to a suitable position, thereby realizing the rapid replacement of the tundish. By setting up multiple hanging connection components 2, multiple quick-change connectors 3 can be hoisted at the same time, and multiple casting furnaces can be operated simultaneously, which is beneficial to reducing the time interval of production operations, improving work efficiency and the casting quality of continuous casting billets; multiple hanging connection components 2 are set to have adjustable spacing, and the position of the quick-change connector 3 can be flexibly adjusted according to the spacing between multiple casting furnaces, so that the quick-change connector 3 can be placed in the crystallizers of multiple casting furnaces at the same time, which helps to speed up the production rhythm and is conducive to the batch production of round billets. The spacing between multiple crystallizers in different round billet continuous casting plants may be different. By adjusting the spacing between the hanging connection components 2, the device can be applied to different round billet continuous casting plants, and has strong versatility.

[0045] For example, in the present embodiment, three hanging connection assemblies 2 and three quick-change connectors 3 are provided. In other embodiments, the number of hanging connection assemblies 2 and quick-change connectors 3 can be determined according to the number of casting furnaces of the actual continuous casting machine used, which is not limited here.

[0046] Exemplarily, an overhead crane can be selected as the machine body. In other embodiments, other devices capable of realizing three-axis motion, such as a device provided with a three-axis module, etc., can also be selected as needed, which is not limited here.

[0047] Optionally, when the number of hanging connection components 2 to be set is an odd number, a hanging connection component 2 located in the middle is set to be fixedly connected to the hanging platform 1, and the remaining hanging connection components 2 are movably connected to the hanging platform 1 along the X direction. At this time, the middle quick-change connector 3 is placed in the casting furnace in the middle of the continuous casting machine. The middle quick-change connector 3 is used as a reference, and the positions of the remaining quick-change connectors 3 are adjusted according to the distance between the remaining casting furnaces of the continuous casting machine and the middle casting furnace. The reference point can be quickly located to adjust the position of the quick-change connector 3, and the number of quick-change connectors 3 that need to be moved can be reduced, thereby reducing the operation time, further speeding up the replacement of the tundish, and being beneficial to the casting quality of the continuous casting billet. Moreover, the middlemost hanging connection component 2 and the quick-change connector 3 at its lower end do not need to be moved, and the hanging connection components 2 on both sides thereof move, so that the hanging platform 1 can be kept as balanced as possible.

[0048] When the number of hanging connection components 2 to be set is an even number, all hanging connection components 2 are set to be movably connected to the hanging platform 1 along the X direction to adjust the spacing between adjacent hanging connection components 2. Multiple hanging connection components 2 can be symmetrically arranged about the center of the hanging platform 1. During adjustment, the hanging connection components 2 on both sides can be adjusted synchronously and symmetrically to keep the hanging platform 1 as balanced as possible.

[0049] Alternatively, if Figure 3 As shown, the round billet continuous casting tundish quick-change device further includes a driving mechanism 4 disposed on the hanging platform 1, the driving mechanism 4 being connected to the hanging connection assembly and capable of driving the hanging connection assembly 2 to move along the X direction, thereby realizing the adjustment of the position of the quick-change connector 3. The position of the quick-change connector 3 can be adjusted accurately and quickly through the driving mechanism 4, thereby avoiding the influence of the long operation time on the quality of the continuous casting billet and saving the labor of the staff.

[0050] like Figure 3As shown, in some embodiments, the driving mechanism 4 includes a first motor 41, a gear 42 and a rack 43, and a first guide rail (not shown in the figure) extending along the X direction is provided on the hanging platform 1. The rack 43 is provided on the hanging platform 1 and extends along the X direction; the gear 42 is transmission-connected to the output end of the first motor 41, and the gear 42 is meshed with the rack 43; the housing of the first motor 41 is slidably matched with the first guide rail along the X direction, and the housing of the first motor 41 is connected to the upper end of the hanging connection assembly 2. When the position of the quick-change connector 3 needs to be adjusted, the gear 42 is driven by the first motor 41 to rotate. Since the gear 42 is meshed with the rack 43, the gear 42 will drive the first motor 41 to move along the X direction on the first guide rail, thereby driving the hanging connection assembly 2 and the quick-change connector 3 to move along the X direction, thereby realizing the adjustment of the position of the quick-change connector 3. The structure is simple and easy to operate, which is conducive to the rapid replacement of the tundish, avoids affecting the quality of the continuous casting billet, and can save the labor of the staff. The sliding cooperation between the first motor 41 and the first guide rail can improve the accuracy and stability of the first motor 41 during movement and avoid deviation in movement.

[0051] Optionally, a second guide rail extending along the X direction is provided on the hanging platform 1, and the second guide rail can be slidably matched with the hanging connection component 2. The hanging connection component 2 is slidably connected to the hanging platform 1. On the one hand, it can provide part of the hanging force for the hanging connection component 2 to avoid the first motor 41 being unable to drive the hanging connection component 2 to move due to the excessive weight of the quick-change connector 3; on the other hand, the first guide rail and the second guide rail cooperate to further improve the accuracy and stability of the hanging connection component 3 when moving along the X direction to avoid deflection.

[0052] like Figure 1 and Figure 4 As shown, the hanging connection assembly 2 includes a sliding member 21, a hanging chain 22 and a hook 23. The sliding member 21 is arranged at the bottom of the hanging platform 1 and slides with the second guide rail; three hanging chains 22 are arranged, and the upper end of each hanging chain 22 is connected to the sliding member 21, and the lower end of each hanging chain 22 is provided with a hook 23, and the hook 23 is detachably hooked on the quick-change connector 3. When the quick-change connector 3 is hoisted, it is only necessary to hook the hanging chain 22 on the upper end of the quick-change connector 3. The hanging chain 22 has a certain deformation ability and can be flexibly pulled, which is convenient for the hook 23 to be hooked with the quick-change connector 3, and three hanging chains 22 are provided, so that the hook 23 can be evenly hooked on the circumference of the quick-change connector 3, thereby improving the overall stability of the quick-change connector 3 during lifting, keeping the quick-change connector 3 stable, avoiding the phenomenon of tilting of the quick-change connector 3, and helping to reduce the operation time; the hook 23 is used to hook the quick-change connector 3, and when the quick-change connector 3 is placed, it only needs to drive the hanging platform 1 to move downward along the Z direction to separate the hook 23 from the quick-change connector 3, which has a simple structure and is easy to operate.

[0053] Exemplarily, the sliding member 21 includes a T-shaped slider and a connecting ring, the T-shaped slider and the connecting ring are connected as one, for example, welded as one, the T-shaped slider is slidably connected to the second guide rail, and the upper end of the hanging chain 22 is connected to the connecting ring. In other embodiments, other structural forms of the sliding member 21 may also be selected, which is not limited here.

[0054] In other embodiments, more than three hanging chains 22 may be provided according to actual needs, which can further improve the stability of the quick-change connector 3 during lifting, which is not limited here.

[0055] Optionally, each hanging chain 22 has the same length, which can ensure that the quick-change connector 3 is in a horizontal state during lifting and is placed vertically in the crystallizer, preventing the new tundish casting position from deviating due to the tilt of the quick-change connector 3, thereby avoiding affecting the quality of the continuous casting billet.

[0056] Optionally, a hooking groove 31 is provided on the quick-change connector 3. When the hook 23 is connected and fixed to the quick-change connector 3, the hook 23 can be hooked with the hooking groove 31. By providing the hooking groove 31, the firmness of the connection between the hook 23 and the quick-change connector 3 can be improved, thereby further improving the stability of the quick-change connector 3 during lifting, avoiding slipping between the hook 23 and the quick-change connector 3, and preventing the quick-change connector 3 from falling.

[0057] Alternatively, if Figure 5 As shown, the round billet continuous casting tundish quick-change device also includes a plurality of safety ropes 5, one end of the safety rope 5 is connected to the hanging platform 1, and the other end is connected to the lower end of the hanging chain 22. During normal lifting, the safety rope 5 is not subjected to force, the upper end of the hanging chain 22 is connected to the sliding member 21, and the lower end is hooked and fixed to the quick-change connector 3 through the hook 23. When the quick-change connector 3 is lifted, if the quick-change connector 3 is too heavy, the hanging chain 22 may break, causing the quick-change connector 3 to fall, thereby affecting the safety of life and property. The safety rope 5 is connected to each hanging chain 22. When the hanging chain 22 breaks due to the excessive weight of the quick-change connector 3, the safety rope 5 will instantly pull the broken hanging chain 22, and the quick-change connector 3 is suspended for the second time to prevent it from falling and being damaged, which is conducive to protecting the safety of life and property, and can ensure the smooth progress of the lifting work.

[0058] Exemplarily, a safety rope 5 may be connected to each hanging chain.

[0059] Embodiment 2

[0060] Based on the same inventive concept as that of the first embodiment, this embodiment provides a round billet continuous casting tundish quick-change device. Figure 6As shown, the difference between this embodiment and the first embodiment is that a different driving mechanism 4 is adopted. The driving mechanism 4 of this embodiment includes a second motor 44, a lead screw 45 and a nut 46. The housing of the second motor 44 is arranged on the hanging platform 1; the lead screw 45 extends along the X direction, and the output end of the second motor 44 is connected to one end of the lead screw 45, that is, the second motor 44 can drive the lead screw 45 to rotate; the nut 46 is sleeved on the lead screw 45 and connected to the upper end of the hanging connection assembly 2. When the position of the quick-change connector 3 needs to be adjusted, the second motor 44 drives the lead screw 45 to rotate, so that the nut 46 moves along the lead screw 45, thereby driving the hanging connection assembly 2 and the quick-change connector 3 to move along the X direction, so as to adjust the position of the quick-change connector 3. The structure is simple and easy to operate, which is conducive to the rapid replacement of the tundish, avoids affecting the quality of the continuous casting billet, and can save the labor of the staff.

[0061] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A round billet continuous casting tundish quick-change device, the tundish is used to pour molten steel into the crystallizer, characterized in that: include: Body; A hanging platform (1) is movably arranged on the machine body along the X direction, the Y direction and the Z direction; the X direction, the Y direction and the Z direction are perpendicular to each other, and the Z direction is a vertical direction; A plurality of hanging connection components (2) are arranged at intervals along the X direction, and the upper ends of the plurality of hanging connection components (2) are connected to the hanging platform (1) at adjustable intervals; The quick-change connector (3) is detachably connected to the lower end of the hanging connection assembly (2); the quick-change connector (3) can be lowered into the crystallizer to connect the steel billets cast by the front and rear tundishes.

2. The round billet continuous casting tundish quick-change device according to claim 1, characterized in that: The number of the hanging connection components (2) is an odd number, the hanging connection component (2) located in the middle is fixedly connected to the hanging platform (1), and the remaining hanging connection components (2) are movably connected to the hanging platform (1) along the X direction; Alternatively, the number of the hanging connection components (2) is an even number, and all of the hanging connection components (2) are movably connected to the hanging platform (1) along the X direction.

3. The round billet continuous casting tundish quick-change device according to claim 1, characterized in that: The round billet continuous casting tundish quick-change device further comprises a driving mechanism (4) arranged on the hanging platform (1), and the driving mechanism (4) is used to drive the hanging connection assembly (2) to move along the X direction.

4. The round billet continuous casting tundish quick-change device according to claim 3 is characterized in that: The driving mechanism (4) comprises a first motor (41), a gear (42) and a rack (43); and the hanging platform (1) is provided with a first guide rail extending along the X direction; The rack (43) extends along the X direction, the gear (42) is transmission-connected to the output end of the first motor (41), and the gear (42) is meshed with the rack (43), the housing of the first motor (41) is slidably matched with the first guide rail along the X direction, and the housing of the first motor (41) is connected to the upper end of the suspension connection assembly (2).

5. The round billet continuous casting tundish quick-change device according to claim 3, characterized in that: The driving mechanism (4) comprises a second motor (44), a lead screw (45) and a nut (46); the housing of the second motor (44) is arranged on the suspension platform (1); the lead screw (45) extends along the X direction; the output end of the second motor (44) is transmission-connected to the lead screw (45); the nut (46) is sleeved on the lead screw (45), and the nut (46) is connected to the upper end of the suspension connection assembly (2); The lead screw (45) can rotate under the drive of the second motor (44) to drive the nut (46) to move along the lead screw (45).

6. The round billet continuous casting tundish quick-change device according to any one of claims 1 to 5, characterized in that: The hanging platform (1) is provided with a second guide rail extending along the X direction, and the second guide rail is slidably matched with the hanging connection assembly (2).

7. The round billet continuous casting tundish quick-change device according to any one of claims 1 to 5, characterized in that: The hanging connection assembly (2) comprises a sliding member (21), a hanging chain (22) and a hook (23); The sliding member (21) is arranged on the hanging platform (1); at least three hanging chains (22) are arranged, the upper end of each hanging chain (22) is connected to the sliding member (21), and the lower end of each hanging chain (22) is provided with the hook (23), and the hook (23) can be detachably hooked on the quick-change connector (3).

8. The round billet continuous casting tundish quick-change device according to claim 7, characterized in that: The lengths of each of the hanging chains (22) are the same.

9. The round billet continuous casting tundish quick-change device according to claim 7, characterized in that: The round billet continuous casting tundish quick-change device also includes a safety rope (5), and at least one safety rope (5) is provided corresponding to each of the hanging connection components (2), one end of the safety rope (5) is connected to the hanging platform (1), and the other end is connected to the lower end of the hanging chain (22).

10. The round billet continuous casting tundish quick-change device according to claim 7, characterized in that: The quick-change connector (3) is provided with a hooking groove (31), and the hook (23) can be hooked with the hooking groove (31).

Images