Ladle with cover

Abstract

The utility model discloses a ladle with a cover, which belongs to the technical field of steel smelting and comprises a base and a barrel fixed on the base, a ladle nozzle convenient for pouring molten iron is arranged at the top of the barrel, convex shafts are symmetrically and fixedly arranged on the outer side wall of the barrel relative to the vertical plane of the ladle nozzle, and mounting plates extending to the upper part of the barrel are rotationally connected onto the two convex shafts; connecting plates are oppositely arranged on the sides, close to the barrel, of the two mounting plates corresponding to the barrel, supporting frames are arranged on the upper end faces, close to the mounting plates, of the connecting plates, power pieces corresponding to the supporting frames are fixedly arranged on the other sides, away from the supporting frames, of the mounting plates, half cover bodies are rotationally connected into the supporting frames, and steel belts are fixed to the upper surfaces of the ends, away from the supporting frames, of the half cover bodies. The steel belt penetrates through the mounting plate to be connected with the power piece, and the two half cover bodies are horizontally butted to form a cover capable of covering the upper end of the opening of the cylinder body. Opening and closing of the half cover body and the opening end of the barrel body are achieved, only the motor needs to be started during operation, and the safety of operators is protected.

Description

Technical Field

[0001] The utility model belongs to the technical field of iron and steel smelting, and specifically relates to a ladle with a cover. Background Art

[0002] In the field of metal smelting, a ladle is an important container for transporting and pouring liquid metal. It is used for pouring operations in the foundry workshop to receive molten iron in front of the furnace, hoist it, and transport it to the casting site for pouring. When the molten iron is poured into the converter, it still needs to be transferred to the ladle and then poured into the converter.

[0003] When the ladle is in use, due to the metallurgical environment, impurities are easily mixed into the liquid metal in the ladle, affecting the quality of the cast product. Moreover, during transportation, a large amount of heat is dissipated, and the surface liquid metal is prone to solidification. The solidified metal flakes on the surface after pouring also affect the casting quality. During transportation, the molten iron in the inner surface of the ladle comes into contact with air, generating a large amount of smoke, polluting the environment, and causing a large amount of iron loss and heat loss. Since the temperature of the molten iron in the ladle is as high as thousands of degrees, the temperature near the ladle is relatively high. During the operation of the ladle, the heat preservation cover needs to be frequently installed and removed, resulting in a high labor intensity for on-site personnel. Especially during the slag removal operation, the high-temperature liquid in the ladle makes the risk coefficient of this operation difficult to be effectively controlled, and the heat emitted by the molten iron in the ladle is likely to burn nearby workers.

[0004] When transporting molten iron from the blast furnace to the converter, an open ladle is mostly used in most cases. To avoid a large amount of heat consumption of the molten iron, the opening of the ladle needs to be covered. In the prior art, the end covers added to the ladle are generally fixed to the ladle barrel, which causes the end cover to fall on the ladle when the ladle barrel rotates during the pouring of molten iron. In addition, most of the end covers on the market adopt an integrated covering structure, which occupies a large space in the fully opened and closed state, and has a complex mechanism and is very inconvenient to operate and not convenient to use.

[0005] Some patents of ladle insulation covers are disclosed in the prior art, among which the utility model patent with announcement number CN218283706U discloses a high-strength insulation dust removal cover, including a ladle, a mounting sleeve is fixed on the surface of the ladle, a support frame is fixedly connected to the upper surface of the mounting sleeve, a rotating member is rotatably connected to the inner wall of the support frame, a left cover plate is fixedly connected to the surface of the rotating member, and a right cover plate that seals with the left cover plate is fitted on the right side of the left cover plate. Although it solves the problem that the integrated covering method currently used in the market occupies a large upper space in the fully opened and closed state, and the structure of the overall opened state needs to bear weight, causing the overall center of gravity to deviate and the stability to be poor, the end cover and the ladle are integrated, so the connection between the two is easily affected by high temperature and has a short service life, and the need for close-range operation during use is inconvenient and unsafe. Utility Model Content

[0006] In order to overcome the problems of the existing molten iron ladle insulation cover occupying a small space, having a simple structure, being inconvenient and unsafe to use when the molten iron ladle insulation cover is fully opened and closed, the utility model provides a molten iron ladle with a cover, comprising a base and a cylinder fixed on the base, a ladle spout for pouring molten iron is provided on the top of the cylinder, a convex shaft is fixedly provided on the outer wall of the cylinder symmetrically relative to the vertical plane of the ladle spout, two convex shafts are rotatably connected to mounting plates extending to the top of the cylinder, and one of the convex shafts is connected to a driving assembly for driving the cylinder to rotate relative to the mounting plate;

[0007] A connecting plate is arranged opposite to the cylinder on one side of the two mounting plates close to the cylinder, a bracket is arranged on the connecting plate close to the upper end surface of the mounting plate, a power piece is fixedly arranged on the other side of the mounting plate away from the bracket corresponding to the bracket, a half cover body is rotatably connected inside the bracket, a steel belt is fixed on the upper surface of one end of the half cover body away from the bracket, the steel belt passes through the mounting plate and is connected to the power piece, the half cover body is opened and closed with the cylinder port by the steel belt, and the two half cover bodies are horizontally butted to form an end cover that can cover the upper end of the cylinder opening.

[0008] A half cover body is arranged on the mounting plates on both sides of the cylinder at a height corresponding to the cylinder body, and supports and power parts are arranged on both sides of the mounting plates to cooperate with the upper and lower connections, and power is provided to the steel belt fixed on the half cover body. The upper surfaces of the left and right cover plates are subjected to tension under the pulling of the steel belt, and the whole body rotates with the rotating shaft as the center of the circle. As the half cover body is flipped over with the rotating part and the support frame as the support points, the opening and closing of the half cover body and the open end of the cylinder body are realized, thereby realizing the covering of the molten iron ladle, which can prevent molten iron from spilling out of the cylinder shell during molten iron transportation, reduce the heat loss of molten iron, and prevent external garbage from falling into the molten iron. During operation, only the motor needs to be started, which greatly protects the safety of the operator.

[0009] Furthermore, a rotating member is integrally provided at the middle of the edge of the half cover body close to the connecting plate, and the rotating member is rotatably connected to the inner wall of the support frame via a pin shaft.

[0010] Through the above technical solution, a rotating member is provided on the half cover body to provide a supporting point for the rotating half cover body, which is beneficial to the rotation of the half cover body so as to realize the opening and closing of the half cover body and the cylinder body.

[0011] Furthermore, a guide plate for controlling the rotation direction of the half cover body is disposed on the inner side of the support frame and half surrounds the rotating member, and the guide plate is fixedly connected to the inner side wall of the support frame.

[0012] Through the above technical solution, a guide member for controlling the rotation direction and range of the half cover is arranged on the inner side of the outer support of the rotating member, and the guide member limits the half cover to open and close only with the upper part of the mounting plate away from the cylinder.

[0013] Furthermore, a connection hole for the steel belt to pass through is opened on the mounting plate corresponding to the support frame, an arc-shaped gasket is arranged at the edge of the connection hole close to the power part, and a limiting groove is arranged on the outer side of the arc-shaped gasket.

[0014] Through the above technical solution, a limiting groove for the steel belt to pass through is opened on the surface of the arc-shaped gasket, which can limit the steel belt from shaking and avoid unstable force on the steel belt.

[0015] Furthermore, the power component includes a protective shell fixedly arranged on the connecting plate, the inner wall of the protective shell is rotatably connected to a winding roller for winding the steel strip, a gear ring is provided on the inner wall of the winding roller close to the protective shell on one side corresponding to the limiting groove, and protective rings are provided on both sides of the gear ring for protecting the rotation of the gear ring.

[0016] Furthermore, the inner wall of the protective shell is rotatably connected to a driven gear meshing with the gear ring, the surface of the driven gear is fixedly connected to a transmission gear, a first motor is fixedly penetrated through the inner wall of one side of the protective shell, and a driving gear for meshing with the transmission gear is fixedly connected to the output shaft of the first motor.

[0017] Through the above technical scheme, the thermal insulation half cover body is provided with a motor, a driving gear, a driven gear, a transmission gear, a gear ring, a rotating part, a slip ring and a connecting ring. When the left cover plate and the right cover plate are opened and closed, the motor drives the transmission gear to rotate synchronously through the driving gear, and the transmission gear drives the gear ring to rotate through the driven gear. When the gear ring rotates, the rotating ring fixed on the surface is limited by the slip ring and rotates, and at the same time, the winding roller on the inner wall is driven to rotate through the connecting ring to realize the overall winding.

[0018] Furthermore, a fixing member for fixing the steel belt is provided on the upper end surface of the side of the semi-cover body facing away from the mounting plate, and the fixing member is coaxially arranged with the rotating member.

[0019] A sliding hole for the steel belt to pass through is formed through the surface of the protective shell.

[0020] Furthermore, the driving assembly includes a worm gear arranged on the convex shaft and a fixing plate fixedly arranged on the mounting plate near the base. A worm is meshed with the worm gear. A protective cover sleeving the worm gear and the worm is fixedly arranged on the mounting plate. One end of the worm extends out of the protective cover and is fixedly connected with a second motor, and the second motor is fixed on the fixing plate.

[0021] Through the above technical solution, the motor rotates to drive the worm gear to rotate, and the rotation of the worm gear can drive the lifting lug to rotate on the lifting beam, so that the molten iron in the cylindrical shell can be poured out.

[0022] Furthermore, one ends of the two mounting plates facing away from the base are connected into one body by arranging a lifting beam. A bent hanging rod is fixed on the upper surface of the lifting beam, and the upper end of the bent hanging rod is provided with a conical bulging bent section.

[0023] Through the above technical solution, the upper end of the bent hanging rod is provided with a conical bulging bent section, which is convenient for the lifting hook to be positioned and hung.

[0024] Beneficial effects:

[0025] The beneficial effects produced by adopting the technical solution of the present utility model are as follows:

[0026] (1) By adopting semi-cover bodies corresponding to the height of the cylindrical body on the mounting plates on both sides of the cylindrical body, and cooperating with the power member to connect up and down through brackets arranged on both sides of the mounting plate, and providing power for the steel belt fixed on the semi-cover body, the upper surfaces of the left and right cover plates are subjected to tensile force under the pulling of the steel belt, and the whole rotates around the rotating shaft as the center, and the semi-cover body takes the rotating member and the bracket as the support points to turn over, realizing the opening and closing of the semi-cover body and the opening end of the cylindrical body, so as to realize covering the ladle with a cover. During operation, only the motor needs to be started, which greatly protects the safety of the operators.

[0027] (2) By arranging two semi-cover bodies that can be combined into one body at the opening end of the cylindrical shell, and connecting a motor for driving the semi-cover bodies to open and close at one end of the semi-cover body, the two horizontally combined semi-cover bodies can prevent the molten iron from spilling out of the cylindrical shell during the transportation of the molten iron, reduce the heat loss of the molten iron, and prevent foreign objects such as garbage from the outside from falling into the molten iron. When in use, the semi-cover bodies can be opened and closed as needed without affecting the transportation of the cylindrical body and the pouring of the molten iron.

[0028] (3) The steel belt for the motor - assembled semi - cover body is used in cooperation with the gear assembly to pull and open the semi - cover body, which facilitates the covering and opening of the cover plate. The structure is simple, the mechanical cost is low, it saves labor and ensures the safety of workers at the same time. Brief Description of the Drawings

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.

[0030] Figure 1 It is a schematic structural diagram of a ladle with a cover according to one embodiment of the present invention;

[0031] Figure 2 It is a schematic structural diagram of a power member of a ladle with a cover according to one embodiment of the present invention;

[0032] Figure 3 It is a schematic cross - sectional view of the connection part of a power member of a ladle with a cover according to one embodiment of the present invention;

[0033] In the figures, 1, base; 2, cylinder body; 3, nozzle; 4, convex shaft; 5, mounting plate; 6, connecting plate; 7, support frame; 8, power member; 9, semi - cover body; 10, steel belt; 11, rotating member; 12, guide plate; 13, connection hole; 14, arc gasket; 15, protective shell; 16, winding roller; 17, tooth ring; 18, protective ring; 19, driven gear; 20, driving gear; 21, first motor; 22, driving gear; 23, fixing member; 24, sliding hole; 25, worm gear; 26, fixing plate; 27, worm; 28, protective cover; 29, second motor; 30, lifting beam. Detailed Embodiments

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Therefore, the detailed description of the embodiments of the present invention provided in the following drawings is not intended to limit the scope of the claimed invention, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0035] This embodiment adopts the method of setting a half cover body on the mounting plates on both sides of the cylinder at a height corresponding to the cylinder body, and by setting a support frame and a power piece on both sides of the mounting plate to cooperate with the upper and lower connection, the upper surfaces of the left and right cover plates are subjected to tension under the pulling of the steel belt, so as to realize the opening and closing of the half cover body and the open end of the cylinder body to reduce the heat loss of the molten iron, and also prevent the external garbage from falling into the molten iron, and the operation is simple to protect the safety of the operator. The specific implementation method is as follows:

[0036] like Figures 1-3 As shown, a covered molten iron ladle comprises a base 1 and a cylinder 2 fixed on the base 1, a ladle spout 3 for pouring molten iron is provided on the top of the cylinder 2, a convex shaft 4 is fixedly provided on the outer wall of the cylinder 2 symmetrically with respect to the vertical plane of the ladle spout 3, two convex shafts 4 are rotatably connected with a mounting plate 5 extending to the top of the cylinder 2, and one of the convex shafts 4 is connected with a driving component for driving the cylinder 2 to rotate relative to the mounting plate 5;

[0037] A connecting plate 6 is arranged opposite to the cylinder 2 on one side of the two mounting plates 5 close to the cylinder 2, a support frame 7 is arranged on the connecting plate 6 close to the upper end surface of the mounting plate 5, a power piece 8 is fixedly arranged on the other side of the mounting plate 5 away from the support frame 7 corresponding to the support frame 7, a half cover body 9 is rotatably connected inside the support frame 7, a steel belt 10 is fixed on the upper surface of one end of the half cover body 9 away from the support frame 7, the steel belt 10 passes through the mounting plate 5 and is connected to the power piece 8, the half cover body 9 is opened and closed with the port of the cylinder 2 by the steel belt 10, and the two half cover bodies 9 are horizontally connected to form an end cover that can cover the upper end of the opening of the cylinder 2.

[0038] Here, a half cover body 9 is set on the mounting plates 5 on both sides of the cylinder 2 at a height corresponding to the cylinder 2, and a support frame 7 and a power member 8 are arranged on both sides of the mounting plate 5 to cooperate with the upper and lower connections, and power is provided to the steel belt 10 fixed on the half cover body 9. Under the pulling of the steel belt 10, the upper surfaces of the left and right cover plates are subjected to tension, and the whole body rotates with the rotating shaft as the center of the circle. As the half cover body 9 is flipped over with the rotating member 11 and the support frame 7 as the support points, the opening and closing of the half cover body 9 and the open end of the cylinder 2 are realized, thereby realizing the covering of the molten iron ladle, which can prevent the molten iron from spilling out of the cylinder shell during the transportation of the molten iron, reduce the heat loss of the molten iron, and prevent the external garbage from falling into the molten iron. During operation, it only needs to start the motor, which greatly protects the safety of the operator.

[0039] As a preferred embodiment, a rotating member 11 is integrally provided at the middle of the edge of the half cover body 9 close to the connecting plate 6 , and the rotating member 11 is rotatably connected to the inner wall of the support frame 7 via a pin shaft.

[0040] Through the above technical scheme, a rotating part 11 is arranged on the half cover body 9 to provide a support point for the rotating half cover body 9, which is beneficial to the rotation of the half cover body 9 so as to realize the opening and closing of the half cover body 9 and the cylinder body 2. In addition, the upper end surface of the support frame 7 can be set as an opening or only a narrow baffle is set on the side close to the mounting plate 5, which is beneficial to the opening and closing of the half cover body 9.

[0041] As a preferred embodiment, a guide plate 12 for controlling the rotation direction of the half cover 9 is disposed on the inner side of the support frame 7 which is half-wrapped around the rotating member 11 , and the guide plate 12 is fixedly connected to the inner side wall of the support frame 7 .

[0042] Through the above technical solution, a guide member for controlling the rotation direction and range of the half cover body 9 is set on the inner side of the outer support frame 7 of the rotating member 11, and the guide member limits the half cover body 9 to open and close only with the upper half of the mounting plate 5 away from the cylinder 2.

[0043] As a preferred embodiment, a connection hole 13 for the steel belt 10 to pass through is opened on the mounting plate 5 corresponding to the support frame 7, and an arc-shaped gasket 14 is provided at the edge of the connection hole 13 close to the power member 8, and a limiting groove is provided on the outer side of the arc-shaped gasket 14.

[0044] Through the above technical solution, a limiting groove for the steel belt 10 to pass through is opened on the surface of the arc-shaped gasket 14, which can limit the steel belt 10 from shaking and avoid unstable force on the steel belt 10.

[0045] As a preferred embodiment, the power component 8 includes a protective shell 15 fixedly arranged on the connecting plate 6, and the inner wall of the protective shell 15 is rotatably connected to a winding roller 16 for winding the steel strip 10, and a gear ring 17 is provided at the inner wall of the winding roller 16 close to the protective shell 15 on the side corresponding to the limiting groove, and protective rings 18 are provided on both sides of the gear ring 17 for protecting the rotation of the gear ring 17.

[0046] As a preferred embodiment, the inner wall of the protective shell 15 is rotatably connected to a driven gear 19 that meshes with the gear ring 17, and the surface of the driven gear 19 is fixedly connected to a transmission gear 20. A first motor 21 is fixedly penetrated through the inner wall of one side of the protective shell 15, and a driving gear 22 for meshing with the transmission gear 20 is fixedly connected to the output shaft of the first motor 21.

[0047] Through the above technical scheme, the heat-insulating half cover body 9 is provided with a motor, a driving gear 22, a driven gear 19, a transmission gear 20, a gear ring 17, a rotating part 11, a slip ring and a connecting ring. When the left cover plate and the right cover plate are opened and closed, the motor drives the transmission gear 20 to rotate synchronously through the driving gear 22, and the transmission gear 20 drives the gear ring 17 to rotate through the driven gear 19. When the gear ring 17 rotates, the rotating ring fixed on the surface rotates under the limit of the slip ring, and at the same time, the winding roller 16 on the inner wall is driven to rotate through the connecting ring to realize the overall winding.

[0048] As a preferred embodiment, a fixing member 23 for fixing the steel belt 10 is provided on the upper end surface of the half cover 9 on the side facing away from the mounting plate 5 , and the fixing member 23 is coaxially arranged with the rotating member 11 .

[0049] As a preferred embodiment, a sliding hole 24 for the steel belt 10 to pass through is formed through the surface of the protective shell 15 .

[0050] As a preferred embodiment, the drive assembly includes a worm gear 25 arranged on the cam shaft 4 and a fixing plate 26 fixed on the mounting plate 5 near the base 1, a worm 27 is meshed on the worm gear 25, and a protective cover 28 is fixed on the mounting plate 5 and is sleeved on the worm gear 25 and the worm 27. One end of the worm 27 extends out of the protective cover 28 and is fixedly connected to a second motor 29, and the second motor 29 is fixed on the fixing plate 26.

[0051] Here, the motor rotates to drive the worm gear 25 to rotate, and the rotation of the worm gear 25 can drive the lifting lug to rotate on the hanging beam 30, so that the molten iron in the shell can be poured out.

[0052] As a preferred embodiment, the two mounting plates 5 are connected as a whole at one end away from the base 1 by setting a suspension beam 30, a curved hanging rod is fixed on the upper surface of the suspension beam 30, and the upper end of the curved hanging rod is set as a conical bulging bend.

[0053] Here, the upper end of the curved hanging rod is set as a conical bulging bend section, which is convenient for the positioning and hanging of the lifting hook. When in use, according to the opening and closing requirements of the half cover body 9, a support frame 7 and a first motor 21 are set on both sides of the mounting plate 5 to cooperate with the upper and lower connections to provide power to the steel belt 10 fixed on the half cover body 9. Under the pulling of the steel belt 10, the upper surfaces of the left and right cover plates are subjected to tension, and the whole body rotates with the rotating shaft as the center of the circle. As the half cover body 9 is flipped over with the rotating part 11 and the support frame 7 as the support points, the opening and closing of the half cover body 9 and the open end of the cylinder 2 are realized. During operation, you only need to start the motor, which greatly protects the safety of the operator.

[0054] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be modified and varied in various ways. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A ladle with a lid, characterized in that, The invention comprises a base (1) and a cylinder (2) fixed on the base (1), the top of the cylinder (2) is provided with a ladle (3) for pouring molten iron, the outer wall of the cylinder (2) is symmetrically fixed with a convex shaft (4) relative to the vertical plane of the ladle mouth (3), two convex shafts (4) are rotatably connected to a mounting plate (5) extending to the top of the cylinder (2), and one of the convex shafts (4) is connected to a driving component for driving the cylinder (2) to rotate relative to the mounting plate (5); A connecting plate (6) is arranged opposite to the cylinder (2) on one side of the two mounting plates (5) close to the cylinder (2); a support frame (7) is arranged on the connecting plate (6) close to the upper end surface of the mounting plate (5); a power member (8) is fixedly arranged on the other side of the mounting plate (5) facing away from the support frame (7) corresponding to the support frame (7); a half cover (9) is rotatably connected inside the support frame (7); a steel belt (10) is fixed on the upper surface of one end of the half cover (9) facing away from the support frame (7); the steel belt (10) passes through the mounting plate (5) and is connected to the power member (8); the half cover (9) is opened and closed with the port of the cylinder (2) by means of the steel belt (10); and the two half covers (9) are horizontally butted to form an end cover that can cover the upper end of the opening of the cylinder (2).

2. The ladle with a cover according to claim 1, characterized in that, The half cover body (9) is integrally provided with a rotating member (11) at the middle of the edge close to the connecting plate (6), and the rotating member (11) is rotatably connected to the inner wall of the support frame (7) via a pin shaft.

3. The ladle with a cover according to claim 2, characterized in that, The inner side of the support frame (7) is half-wrapped around the rotating member (11) and is provided with a guide plate (12) for controlling the rotation direction of the half cover body (9); the guide plate (12) is fixedly connected to the inner side wall of the support frame (7).

4. A ladle with a lid according to claim 1, wherein, A connection hole (13) for the steel belt (10) to pass through is provided on the mounting plate (5) corresponding to the support frame (7), and an arc-shaped gasket (14) is provided at the edge of the connection hole (13) close to the power member (8), and a limiting groove is provided on the outer side of the arc-shaped gasket (14).

5. A hot metal ladle with a lid according to claim 4, characterized in that, The power member (8) comprises a protective shell (15) fixedly arranged on the connecting plate (6); the inner wall of the protective shell (15) is rotatably connected to a winding roller (16) for winding up the steel strip (10); a toothed ring (17) is arranged on the inner wall of one side of the protective shell (15) corresponding to the limiting groove; and protective rings (18) for protecting the rotation of the toothed ring (17) are arranged on both sides of the toothed ring (17).

6. The ladle with a cover according to claim 5, characterized in that, The inner wall of the protective shell (15) is rotatably connected to a driven gear (19) meshing with the gear ring (17); the surface of the driven gear (19) is fixedly connected to a transmission gear (20); a first motor (21) is fixedly passed through an inner wall of one side of the protective shell (15); and a driving gear (22) for meshing with the transmission gear (20) is fixedly connected to an output shaft of the first motor (21).

7. The ladle with a cover according to claim 3, characterized in that, On the upper end surface of the side of the semi-cover body (9) facing away from the mounting plate (5), there is a fixing member (23) for fixing the steel belt (10), and the fixing member (23) is coaxially arranged with the rotating member.

8. A hot metal ladle with a lid according to claim 5, characterized in that, A sliding hole (24) for the steel belt (10) to pass through is formed through the surface of the protective shell (15).

9. A hot metal ladle with a lid according to claim 1, characterized in that, The driving assembly includes a worm gear (25) arranged on the convex shaft (4) and a fixing plate (26) fixedly arranged on the mounting plate (5) near the base (1). A worm (27) is engaged with the worm gear (25). A protective cover (28) sleeved outside the worm gear (25) and the worm (27) is fixedly arranged on the mounting plate (5). One end of the worm (27) extends out of the protective cover (28) and is fixedly connected with a second motor (29), and the second motor (29) is fixed on the fixing plate (26).

10. A hot metal ladle with a cover according to claim 1, characterized in that, One ends of the two mounting plates (5) facing away from the base (1) are connected into one body by arranging a suspension beam (30). A bent hanging rod is fixed on the upper surface of the suspension beam (30), and the upper end of the bent hanging rod is provided with a conical bulging bend section.

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