A ladle with a bottom structure

Abstract

The present application relates to the technical field of casting, in particular, the present application relates to a ladle with a ladle bottom structure, including a moving frame and other components, the moving frame is symmetrically provided with self-locking assembly, two self-locking assembly is connected with the ladle; the ladle, including the ladle shell and the inner lining, the inner lining is provided with a runner on one side, the ladle shell is provided with the first recess for the runner activity, the inner lining is sleeved in the ladle shell, the inner lining is coated with fire-resistant mud slurry as the bonding layer between the ladle shell, the bottom of the ladle shell is provided with a through hole, the through hole is provided with the ejection assembly for lifting the inner lining around, the outer wall of the ladle shell is fixedly connected with the limit plate on the side away from the runner, the limit plate is connected with the pouring assembly installed on the top of the moving frame.The present application is provided with the ejection assembly, the inner lining can be smoothly lifted to realize separation, reduce the difficulty of replacement, greatly shorten the downtime, improve the efficiency, at the same time, the self-locking assembly is provided, the block and the groove can be matched, the ladle can be prevented from falling back when power off, and safety accidents can be avoided.

Description

Technical Field

[0001] This invention relates to the field of casting technology, and more specifically, to a ladle with a bottom structure. Background Technology

[0002] A ladle is a container used in steel production to hold molten iron, typically used to transfer and store hot iron during steelmaking. A ladle usually consists of two parts: a shell and an inner lining. The shell serves as a load-bearing framework, while the inner lining, made of high-temperature refractory material, directly withstands the high-temperature erosion and mechanical impact of the molten iron.

[0003] During long-term cyclic use, the lining may develop cracks, peel off, or experience localized corrosion due to factors such as erosion from molten iron, requiring periodic replacement or reconstruction. However, reconstruction necessitates baking and drying the lining, resulting in high labor intensity and low turnover efficiency of the ladle. Furthermore, existing molten iron ladles are typically equipped with a tilting system; however, if a sudden power outage occurs during tilting, the ladle may unexpectedly fall back, causing molten iron to splash. In view of this, the present invention proposes a molten iron ladle with a bottom structure, addressing at least one of the aforementioned technical problems. Summary of the Invention

[0004] In order to overcome the technical problems mentioned in the background art, the present invention provides a ladle with a bottom structure.

[0005] The technical implementation of the present invention is as follows: a ladle with a bottom structure includes a movable frame, self-locking components are symmetrically arranged inside the movable frame, and a ladle is connected between two self-locking components; The molten iron ladle includes a ladle shell and an inner lining. A spout is provided on one side of the inner lining. A first groove is provided on the ladle shell for the spout to move. The inner lining is fitted inside the ladle shell. Refractory mortar is applied between the inner lining and the ladle shell as a bonding layer. A through hole is provided at the bottom of the ladle shell. An ejection assembly for lifting the inner lining is provided around the through hole. A limit plate is fixed to the bottom of the outer wall of the ladle shell away from the spout. The limit plate is connected to a tilting assembly installed on the top of the moving frame.

[0006] Optionally, the ejection assembly includes a fixed base circumferentially arranged with the through hole as the center, a rocker arm rotatably connected to the fixed base, a torsion spring between the rocker arm and the fixed base, one end of the rocker arm contacting the inner substrate surface, and the other end connected to a first driving member, which drives the rocker arm to rotate. The driving member includes a rotating ring rotatably connected to the bottom surface of the casing, a circumferentially arranged inclined groove adapted to the rocker arm on the rotating ring, one end of the rocker arm abutting against the inclined groove of the rotating ring, a worm gear mounted on the rotating ring, and a worm gear meshing with the worm gear rotatably connected to the bottom of the casing. The worm gear is driven to rotate by a first driving motor installed at the bottom of the casing. The first driving motor has a built-in power supply and a wireless connection module.

[0007] Optionally, a support wedge is fixed to the inner substrate, the slope of the support wedge is inclined from the side wall to the center, and a thickening block is fixed to the center of the inner substrate.

[0008] Optionally, the diameter of the lower part of the support wedge is larger than the diameter of the through hole.

[0009] Optionally, the tilting assembly includes a rope wheel rotatably connected to the top surface of the movable frame. The rope wheel is driven by a second drive motor to achieve rotation. One end of a second pull rope is wound on the rope wheel, and the other end of the second pull rope is fixed to a limit block. The limit plate is provided with a rope groove for the second pull rope to move, and the bottom of the rope groove is provided with a limit groove that matches the limit block.

[0010] Optionally, a baffle plate is fixed to the side wall of the inner lining near the nozzle, the top surface of the baffle plate is provided with a first inclined surface, and guide holes are evenly distributed on the side wall of the baffle plate near the inner lining.

[0011] Optionally, the self-locking assembly includes a fan-shaped frame slidably connected within a movable frame. The fan-shaped frame is driven to slide by a first electric push rod mounted on the movable frame. One end of the fan-shaped frame is provided with an arc-shaped groove. A lock block is slidably connected within the arc-shaped groove. The lock block is connected to the molten iron ladle via a connector. A slot is provided within the arc-shaped groove. A locking block that matches the slot is slidably connected to the lock block. The side of the locking block facing the ground is a straight surface, and the side of the locking block away from the ground is a second inclined surface. An elastic element is provided between the locking block and the lock block. A rotating shaft is rotatably connected to the end of the fan-shaped frame away from the arc-shaped groove. A fixing rod is fixedly connected to the bottom of the spout. The two ends of the fixing rod are provided with first cross grooves. A first cross protrusion that matches the first cross groove is provided on the rotating shaft. The connector includes trunnions symmetrically fixed to the side wall of the ladle. A second cross groove is provided on the trunnion. A second cross protrusion that matches the second cross groove is provided on the side of the lock block near the trunnion.

[0012] Optionally, the lock block is symmetrically provided with movable grooves, and a swing plate is slidably connected in the movable groove. The swing plate is connected to the locking block by a first pull rope. Two bidirectional electric push rods are symmetrically installed inside the lock block. A pressure plate is fixedly connected to the telescopic rods of the two bidirectional electric push rods. The pressure plate and the swing plate are stacked, and the pressure plate is located on the side away from the center of the lock block. The bidirectional electric push rods have built-in power supply and wireless connection modules.

[0013] Compared with the prior art, the present invention has the following advantages: 1. This invention includes components such as an ejector assembly. When the liner needs to be replaced, the first drive motor is started, and the output shaft of the first drive motor drives the worm gear to rotate. The worm gear then drives the worm wheel to rotate, which in turn drives the rotating ring to rotate. The inclined groove on the rotating ring pushes the rocker plate to rotate, and the rocker plate rotates upward to lift the liner, thus separating the liner from the shell. At the same time, the torsion spring stores elastic potential energy, which makes it easy to remove the liner. This achieves efficient and stable separation of the liner, reduces the difficulty of liner replacement, eliminates the need for manual prying, significantly shortens the downtime for liner replacement, and significantly improves the replacement efficiency.

[0014] 2. This invention includes a self-locking component. As the ladle rotates, it drives the trunnion to rotate, which in turn causes the locking block to slide upwards within the arc-shaped groove. During this sliding process, the locking slot presses against the second inclined surface of the locking block, causing the locking block to retract into the lock block. This, in turn, causes the locking block to press against the elastic element, storing elastic potential energy. When moving to the next locking slot, the elastic element releases this potential energy, pushing the locking block out and allowing its straight surface to re-embed into the new slot. The spacing between adjacent locking slots on the arc-shaped groove ensures that the ladle tilts at approximately one degree angle each time it switches its locking position. This controls the outflow speed of the molten iron. Furthermore, in the event of a power outage during the pouring of the ladle, the elastic element keeps the straight surface of the locking block locked to the locking slot, preventing the ladle from falling back due to its own weight and avoiding a safety accident caused by the splashing of high-temperature molten iron. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a schematic diagram of the molten iron ladle and other components of the present invention.

[0017] Figure 3 This is a cross-sectional view of the molten iron ladle and other components of the present invention.

[0018] Figure 4 This is a schematic diagram of the ejector assembly and other components of the present invention.

[0019] Figure 5 This is a schematic diagram of the slag baffle plate of the present invention.

[0020] Figure 6 This is a schematic diagram of the fan-shaped frame and other components of the present invention.

[0021] Figure 7 This is a schematic diagram of the lock block and other components of the present invention.

[0022] Figure 8 This is a cross-sectional view of the lock block and other components of the present invention.

[0023] Figure 9 This is a schematic diagram of the tilting assembly and other components of the present invention.

[0024] The components in the attached diagram are labeled as follows: 101: Moving frame, 102: Ladle, 111: Ladle shell, 1111: First groove, 1112: Through hole, 112: Lining, 113: Spout, 114: Limiting plate, 1141: Limiting groove, 1142: Rope groove, 201: Fixed base, 202: Rocker plate, 211: Rotating ring, 2111: Inclined groove, 212: Worm gear, 213: Worm, 214: First drive motor, 301: Slag baffle, 3011: First inclined surface, 3012: Guide hole, 401: Supporting inclined block, 402: Thickening block, 501: Fan-shaped frame, 5011: Arc-shaped slide 5012: Slot; 502: First electric push rod; 503: Rotating shaft; 505: Fixed rod; 5051: First cross groove; 506: First cross protrusion; 507: Lock block; 5071: Movable groove; 508: Locking block; 5081: Straight surface; 5082: Second inclined surface; 509: Elastic element; 510: Trunnion; 5101: Second cross groove; 511: Second cross protrusion; 601: Swing plate; 602: First pull rope; 611: Bidirectional electric push rod; 612: Pressure plate; 701: Second drive motor; 702: Rope wheel; 703: Second pull rope; 704: Limiting block. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] A ladle with a bottom structure, such as Figures 1-9 As shown, it includes a movable frame 101, which is made of welded steel and has an external movable device. The movable device can drive the movable frame 101 to move. The movable device is existing technology. The top of the movable frame 101 has symmetrical slide rails for installing self-locking components. A molten iron ladle 102 is connected between the two self-locking components. The molten iron ladle 102 includes a cladding shell 111 and an inner lining 112. The inner lining 112 is fitted inside the cladding shell 111. The cladding shell 111 is welded from steel plates. The inner lining 112 is integrally cast from high-alumina refractory castable with an alumina content of 85%. A spout 113 is pre-reserved on one side of the inner lining 112. The spout 113 is integrally formed with the inner lining 112. The cladding shell 111 is provided with a first groove 1111 for the spout 113 to move. Refractory mortar is applied between the inner lining 112 and the cladding shell 111 as a bonding layer. The thermal expansion coefficients of the two materials are significantly different, and they will deform to different degrees under the action of high temperature molten iron. However, the refractory mortar has a certain plasticity at high temperature, which allows it to absorb the difference in deformation and prevent the two materials from cracking due to rigid constraints. A through hole 1112 is provided at the center of the bottom of the shell 111. An ejection assembly for lifting the inner lining 112 is provided around the through hole 1112. A limiting plate 114 is fixedly connected to the bottom of the outer wall of the shell 111 on the side away from the spout 113. The limiting plate 114 is connected to the tilting assembly installed on the top of the moving frame 101. The ejection assembly includes four fixed seats 201 circumferentially and uniformly fixed around the through hole 1112. Each fixed seat 201 is rotatably connected to a rocker arm 202. A torsion spring is provided between the rocker arm 202 and the fixed seat 201. One end of the rocker arm 202 contacts the bottom surface of the inner lining 112, and the other end is connected to a driving component. The driving component drives the rocker arm 202 to rotate. Since the inner lining 112 and the shell 111 are flexibly bonded by refractory mortar, and the refractory mortar will develop micro-cracks due to thermal fatigue after long-term use, the bonding strength will be further reduced. The step is lowered, so that under the action of sufficient pushing force provided by the first driving member, the inner liner 112 can be smoothly tilted and separated from the shell 111 by means of the rocker plate 202; the driving member includes a rotating ring 211 rotatably connected to the bottom surface of the shell 111, the rotating ring 211 is provided with a circumferentially inclined groove 2111 adapted to the rocker plate 202, one end of the rocker plate 202 abuts against the inclined groove 2111 of the rotating ring 211, a worm gear 212 is installed on the rotating ring 211, and a worm 213 that meshes with the worm gear 212 is rotatably connected to the bottom of the shell 111. 3. Rotation is achieved by a first drive motor 214 installed at the bottom of the casing 111. The first drive motor 214 has a built-in power supply and wireless connection module, which allows multiple rocker arms 202 to push synchronously, ensuring the smooth ejection of the inner liner 112. At the same time, utilizing the reverse self-locking characteristics of the worm gear 212 and worm 213, when the first drive component lifts the inner liner 112 to a certain position, even if the first drive motor 214 stops working, the rotating ring 211 will not rotate in the opposite direction due to the gravity of the inner liner 112, thus maintaining the pushing action of the rocker arms 202. The worm gear 212 and worm 213 can provide a large output torque, which can generate sufficient jacking force to overcome the bonding force of the refractory mortar between the inner lining 112 and the shell 111 and the weight of the inner lining 112. This ensures that even if the inner lining 112 is tightly attached to the shell 111 due to long-term use, it can still be reliably jacked up. The wireless connection module is specifically a Bluetooth module, which can be connected to an external main controller, and the main controller can then control the first drive motor 214. Therefore, when the inner liner 112 needs to be replaced, the main controller starts the first drive motor 214, which in turn drives the worm gear 213 to rotate. The worm gear 213 then drives the worm wheel 212 to rotate, which in turn drives the rotating ring 211 to rotate. The inclined groove 2111 on the rotating ring 211 pushes the rocker plate 202 to rotate, which in turn rotates upward and lifts the inner liner 112, separating the inner liner 112 from the outer shell 111. At the same time, the torsion spring stores elastic potential energy, which makes it easy to remove the inner liner 112. This achieves efficient and stable separation of the inner liner 112, reduces the difficulty of replacing the inner liner 112, eliminates the need for manual prying, significantly shortens the downtime for replacing the inner liner 112, and significantly improves the efficiency of replacement. When installing the new inner liner 112, the first drive motor 214 drives the rotating ring 211 to rotate in the opposite direction, which in turn drives the rocker plate 202 to reset.

[0027] Specifically, the self-locking assembly includes a sector-shaped frame 501 slidably connected within the movable frame 101. The sector-shaped frame 501 is driven by a first electric push rod 502 mounted on the movable frame 101 to achieve sliding. One end of the sector-shaped frame 501 is provided with an arc-shaped slide groove 5011. A lock block 507 is slidably connected within the arc-shaped slide groove 5011. The lock block 507 is connected to the ladle 102 via a connector. A slot 5012 is provided within the arc-shaped slide groove 5011. A locking block 508 adapted to the slot 5012 is slidably connected to the lock block 507. The side of the locking block 508 facing the ground is a straight surface 5081, and the side of the locking block 508 away from the ground is a second inclined surface 5082. An elastic element 509 is provided between the 8 and the lock block 507. The elastic element 509 is specifically a spring. The end of the fan-shaped frame 501 away from the arc-shaped slide groove 5011 is rotatably connected to the rotating shaft 503. The bottom of the nozzle 113 is fixedly connected to the fixing rod 505. The two ends of the fixing rod 505 are provided with the first cross groove 5051. The rotating shaft 503 is provided with the first cross protrusion 506 that matches the first cross groove 5051. The connecting part includes the trunnion 510 symmetrically fixed to the side wall of the shell 111. The trunnion 510 is provided with the second cross groove 5101. The side of the lock block 507 near the trunnion 510 is provided with the second cross protrusion 511 that matches the second cross groove 5101. Therefore, the moving device moves the moving frame 101 to the side of the molten iron ladle 102, and then simultaneously activates the first electric push rod 502. The first electric push rod 502 drives the fan-shaped frame 501 to move closer to each other, so that the first cross protrusion 506 of the rotating shaft 503 is inserted into the first cross groove 5051 of the fixing rod 505, and at the same time, the second cross protrusion 511 of the lock block 507 is inserted into the second cross groove 5101 of the trunnion 510, thereby completing the docking of the fan-shaped frame 501 and the molten iron ladle 102. Then, the moving device moves the molten iron ladle 102 to the working area. Then, the tilting assembly is activated, causing the ladle 102 to rotate around the fixed rod 505. This prevents the spout 113 from shaking and causing molten iron to splash, improving operational safety. As the ladle 102 rotates, it drives the trunnion 510 to rotate as well. The trunnion 510 then causes the locking block 507 to slide upwards within the arc-shaped groove 5011. During this sliding process, the locking block 507's groove 5012 presses against the second inclined surface 5082 of the locking block 508, causing the locking block 508 to retract into the locking block 507. This, in turn, causes the locking block 508 to press against the elastic element 509, storing elastic potential energy. When moving to the next... When the slot 5012 is engaged, the elastic element 509 releases its elastic potential energy, pushing the locking block 508 out, so that the straight surface 5081 of the locking block 508 is re-engaged into the new slot 5012. The distribution distance between two adjacent slots 5012 on the arc-shaped slide 5011 ensures that the tilt angle of the ladle 102 is approximately one degree each time the locking position is changed. This controls the outflow speed of the molten iron. At the same time, if a power outage occurs suddenly when the ladle 102 is being poured, the action of the elastic element 509 keeps the straight surface 5081 of the locking block 508 locked to the slot 5012, preventing the ladle 102 from falling back due to its own weight and avoiding safety accidents caused by the splashing of high-temperature molten iron.

[0028] Furthermore, the lock block 507 is symmetrically provided with movable grooves 5071, and a swing plate 601 is slidably connected within the movable grooves 5071. The swing plate 601 is connected to the locking block 508 via a first pull rope 602. Two bidirectional electric push rods 611 are symmetrically installed inside the lock block 507. A pressure plate 612 is fixedly connected to the telescopic rods of the two bidirectional electric push rods 611. The pressure plate 612 and the swing plate 601 are stacked, with the pressure plate 612 located on the side away from the center of the lock block 507, and the swing plate 601 located on the side closer to the center of the lock block 507. The bidirectional electric push rods 611 have built-in power supplies and wireless connection modules. The wireless connection module is specifically a Bluetooth module, which can connect to an external main controller. The main controller can then control the bidirectional electric push rods 611. Therefore, when it is necessary to unlock... When locked, the main controller activates the bidirectional electric push rod 611, causing its telescopic rod to retract. This brings the two pressure plates 612 closer together, which in turn press the swing plate 601, causing it to move closer together. The swing plate 601 then pulls the first pull rope 602, which in turn pulls the locking block 508 back into the lock block 507. This releases the locking state of the locking block 508 and the locking groove 5012. Simultaneously, in conjunction with the tilting assembly, the molten iron ladle 102 can be reset. When the bidirectional electric push rod 611 is de-energized, the swing plate 601 can be manually pulled to release the locking state of the locking block 508 and the locking groove 5012. This can shorten emergency handling time in emergency scenarios such as power outages and reduce production stoppages caused by the molten iron ladle 102 remaining.

[0029] Furthermore, a baffle plate 301 is fixedly attached to the side wall of the inner lining 112 near the nozzle 113. The top surface of the baffle plate 301 has a first inclined surface 3011. Guide holes 3012 are evenly distributed on the baffle plate 301 near the side wall of the inner lining 112. A supporting inclined block 401 is fixedly attached to the bottom of the inner lining 112, and the slope of the supporting inclined block 401 slopes from the side wall towards the center. A thickening block 402 is fixedly attached to the center of the bottom of the inner lining 112. The thickening block 402 is... The hemispherical support block 401 has a diameter at its lower part larger than the diameter of the through hole 1112. Therefore, when the pouring assembly pours molten iron, the molten iron will flow towards the baffle plate 301 under the action of the slope of the support block 401 from the side wall towards the center. This reduces the amount of molten iron remaining at the bottom corners, improving the utilization rate of the molten iron. Simultaneously, the baffle plate 301 can block high-density impurities such as slag and refractory material debris that may accumulate at the bottom of the lining 112 during long-term use. The molten iron will then flow through the guide hole 3012 towards the spout 113. Furthermore, because the baffle plate 301 has a first inclined surface 3011, it can act as a reinforcing rib structure during molten iron injection, working in conjunction with the support block 401 and the thickening block 402 to disperse the impact force of the molten iron on the bottom, preventing cracks or spalling at the bottom of the lining 112 due to excessive local stress, thus extending the service life of the lining 112. The hemispherical thickening block 402 will further distribute the molten iron's impact. The impact of the molten iron on the bottom of the inner lining 112 prevents the inner lining 112 from collapsing due to the through hole 1112 on the cladding 111. At the same time, the slope of the hemispherical thickening block 402 and the supporting inclined block 401 causes most of the pressure of the molten iron to act between the thickening block 402 and the supporting inclined block 401. Since the diameter of the lower part of the supporting inclined block 401 is larger than the diameter of the through hole 1112, the bottom of the cladding 111 will share some of the pressure of the molten iron.

[0030] Specifically, the tilting assembly includes a pulley 702 rotatably connected to the top surface of the movable frame 101. The pulley 702 is driven to rotate by a second drive motor 701. One end of a second pull rope 703 is wound around the pulley 702, and the other end of the second pull rope 703 is fixedly connected to a limit block 704. A rope groove 1142 for the second pull rope 703 to move is provided on the limit plate 114. The bottom of the rope groove 1142 is provided with a limit groove 1141 that matches the limit block 704. In this way, when in use, the second pull rope 703 is tilted to the top surface of the movable frame 101. One end of the pull rope 703 is inserted into the rope groove 1142, and the second drive motor 701 is started at the same time to tighten the second pull rope 703. The tension of the second pull rope 703 causes the limiting block 704 to be inserted into the limiting groove 1141. When the second drive motor 701 is started again, the output shaft of the second drive motor 701 drives the rope wheel 702 to rotate. The rope wheel 702 tensions the second pull rope 703, which causes the limiting block 704 to move upward. The limiting block 704 then drives the ladle 102 to rotate.

[0031] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A ladle with a bottom structure, characterized in that, It includes a movable frame (101), and self-locking components are symmetrically arranged inside the movable frame (101). A molten iron ladle (102) is connected between the two self-locking components. The molten iron ladle (102) includes a ladle shell (111) and an inner lining (112). A spout (113) is provided on one side of the inner lining (112). A first groove (1111) for the spout (113) to move is provided on the ladle shell (111). The inner lining (112) is fitted inside the ladle shell (111). Refractory mortar is applied between the inner lining (112) and the ladle shell (111) as a bonding layer. A through hole (1112) is provided at the bottom of the ladle shell (111). An ejection assembly for lifting the inner lining (112) is provided around the through hole (1112). A limiting plate (114) is fixedly connected to the bottom of the outer wall of the ladle shell (111) away from the spout (113). The limiting plate (114) is connected to a tilting assembly installed on the top of the moving frame (101).

2. The ladle with a bottom structure according to claim 1, characterized in that, The ejection assembly includes a fixed base (201) circumferentially arranged with the through hole (1112) as the center. A rocker plate (202) is rotatably connected to the fixed base (201). A torsion spring is provided between the rocker plate (202) and the fixed base (201). One end of the rocker plate (202) is in contact with the bottom surface of the inner liner (112), and the other end is connected to the first driving member. The rocker plate (202) is rotated by the driving member. The driving member includes a rotating ring (211) rotatably connected to the bottom surface of the shell (111). A circumferential groove (2111) is provided to match the rocker (202). One end of the rocker (202) abuts against the groove (2111) of the rotating ring (211). A worm gear (212) is installed on the rotating ring (211). A worm (213) meshing with the worm gear (212) is rotatably connected to the bottom of the casing (111). The worm (213) is driven to rotate by a first drive motor (214) installed at the bottom of the casing (111). The first drive motor (214) has a built-in power supply and wireless connection module.

3. A ladle with a bottom structure according to claim 2, characterized in that, The bottom of the lining (112) is fixed with a support inclined block (401), the slope of the support inclined block (401) is inclined from the side wall to the center, and a thickening block (402) is fixed at the center of the bottom of the lining (112).

4. A ladle with a bottom structure according to claim 3, characterized in that, The diameter of the lower part of the support wedge (401) is larger than the diameter of the through hole (1112).

5. A ladle with a bottom structure according to claim 4, characterized in that, The tilting assembly includes a rope wheel (702) rotatably connected to the top surface of the movable frame (101). The rope wheel (702) is driven by a second drive motor (701) to achieve rotation. One end of a second pull rope (703) is coiled on the rope wheel (702). The other end of the second pull rope (703) is fixed to a limit block (704). A rope groove (1142) for the second pull rope (703) to move is provided on the limit plate (114). A limit groove (1141) matching the limit block (704) is provided at the bottom of the rope groove (1142).

6. A ladle with a bottom structure according to claim 5, characterized in that, A slag baffle plate (301) is fixedly attached to the side wall of the inner lining (112) near the nozzle (113). A first inclined surface (3011) is provided on the top surface of the slag baffle plate (301). Guide holes (3012) are evenly distributed on the side wall of the slag baffle plate (301) near the inner lining (112).

7. A ladle with a bottom structure according to claim 1, characterized in that, The self-locking assembly includes a sector-shaped frame (501) slidably connected within a movable frame (101). The sector-shaped frame (501) is driven by a first electric push rod (502) mounted on the movable frame (101) to achieve sliding. One end of the sector-shaped frame (501) is provided with an arc-shaped slide groove (5011). A lock block (507) is slidably connected within the arc-shaped slide groove (5011). The lock block (507) is connected to the ladle (102) via a connector. A slot (5012) is provided within the arc-shaped slide groove (5011). A locking block (508) adapted to the slot (5012) is slidably connected to the lock block (507). The side of the locking block (508) facing the ground is set as a straight surface (5081), and the side of the locking block (508) away from the ground is set as a second inclined surface (5082). An elastic element (509) is provided between the block (508) and the lock block (507). The end of the fan-shaped frame (501) away from the arc-shaped slide (5011) is rotatably connected to a rotating shaft (503). A fixing rod (505) is fixedly connected to the bottom of the nozzle (113). The two ends of the fixing rod (505) are provided with a first cross groove (5051). The rotating shaft (503) is provided with a first cross protrusion (506) that matches the first cross groove (5051). The connecting element includes a trunnion (510) that is symmetrically fixed to the side wall of the shell (111). The trunnion (510) is provided with a second cross groove (5101). The side of the lock block (507) near the trunnion (510) is provided with a second cross protrusion (511) that matches the second cross groove (5101).

8. A ladle with a bottom structure according to claim 7, characterized in that, The lock block (507) is symmetrically provided with movable grooves (5071), and a swing plate (601) is slidably connected in the movable groove (5071). The swing plate (601) is connected to the locking block (508) by a first pull rope (602). The lock block (507) is symmetrically installed with bidirectional electric push rods (611). The telescopic rods of the two bidirectional electric push rods (611) are fixed with a pressure plate (612). The pressure plate (612) and the swing plate (601) are stacked, and the pressure plate (612) is located on the side away from the center of the lock block (507). The bidirectional electric push rods (611) have built-in power supply and wireless connection modules.

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