Vacuum ladle

Abstract

The utility model discloses a vacuum two-man ladle, which comprises a mounting rack and a two-man ladle device, the two-man ladle device is mounted on the mounting rack, the two-man ladle device comprises a steel shell, a bottom castable and a prefabricated member, the steel shell is connected with the mounting rack, a heat insulation layer is arranged on the inner wall of the steel shell, the bottom castable is arranged at the bottom of the steel shell, and the prefabricated member is arranged on the mounting rack. The prefabricated part is arranged in the bottom castable, the prefabricated part is provided with a side face, the side face is provided with a sealing step, the sealing step and the prefabricated part are integrally formed, the top of the sealing step is provided with a sealing inclined face, the end, close to the prefabricated part, of the sealing inclined face inclines downwards, and the upper surface of the bottom castable is higher than the step. And the bottom castable is clamped with the step. The sealing structure has the advantages that molten aluminum can be blocked through the sealing inclined face and prevented from permeating into the bottom of the steel shell, and the stability and the sealing performance of the prefabricated part are good.

Description

Technical Field

[0001] This utility model relates to the technical field of bag lifting, specifically to a vacuum bag lifting method. Background Technology

[0002] Vacuum ladle is a crucial piece of equipment in aluminum electrolysis production. Molten aluminum produced from the electrolytic cells is sucked out using a vacuum ladle and then transported to various aluminum processing units to produce different aluminum products. During the process of the molten aluminum being sucked into the ladle, the molten aluminum entering the ladle impacts the bottom. To ensure the ladle's lifespan, prefabricated components with higher strength and heat resistance are installed at the bottom of the ladle. These prefabricated components withstand the impact of the high-temperature molten aluminum, thus ensuring the ladle's longevity.

[0003] Chinese utility model patent CN202963434U discloses a seepage-proof steel ladle, comprising a steel shell and a refractory material casting layer. The refractory material casting layer at the bottom of the ladle, where molten steel is injected, contains precast bottom bricks to resist molten steel erosion. Because these precast bottom bricks are incorporated into the refractory material casting layer at the bottom of the ladle where molten steel is injected, rapid melting of the refractory material casting layer at this location can be effectively prevented, thus avoiding steel seepage accidents and extending the service life of the ladle.

[0004] During the installation of prefabricated components into the ladle, the components need to be installed at the bottom of the ladle, and then thermal insulation material is poured into the bottom of the ladle. The prefabricated components are then fixed in place after the insulation material hardens. However, with existing technology, the connection between the prefabricated components and the poured insulation material is unstable after prolonged use. The prefabricated components become loose after being repeatedly washed by molten aluminum over a long period, allowing molten aluminum to seep into the steel shell through the gaps between the prefabricated components and the poured insulation material, thus affecting the service life of the ladle. Therefore, the existing ladle technology suffers from technical problems of poor stability and sealing of the prefabricated components. Utility Model Content

[0005] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a vacuum lifting package, which includes a mounting frame and a lifting device. The vacuum lifting package has the advantages of good stability and sealing of the prefabricated component.

[0006] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows:

[0007] A vacuum lifting device includes a mounting frame and a lifting assembly. The lifting assembly is mounted on the mounting frame and includes a steel shell, a bottom castable, and a precast component. The steel shell is connected to the mounting frame. The inner wall of the steel shell is provided with a heat insulation layer. The bottom castable is disposed at the bottom of the steel shell. The precast component is disposed within the bottom castable. The precast component has a side surface with a sealing step. The sealing step is integrally formed with the precast component. The top of the sealing step has a sealing slope. The end of the sealing slope near the precast component slopes downward. The upper surface of the bottom castable is higher than the step, and the bottom castable is engaged with the step.

[0008] This design, with its sealing bevel, blocks the molten aluminum and keeps it at the lower end of the bevel, preventing it from seeping into the bottom of the steel shell and melting through it. This improves the reliability of the vacuum lifting package and achieves the advantages of good stability and sealing of the prefabricated components.

[0009] Preferably, a notch is provided in the middle of the side surface.

[0010] This design enhances the structural stability between the precast component and the bottom castable.

[0011] Preferably, the sealing step extends along the side, and the two ends of the sealing step are aligned with the side.

[0012] This setup further enhances the structural stability between the precast component and the bottom castable.

[0013] Preferably, the sealing step is provided with a first inclined surface, a second inclined surface and a third inclined surface located within the notch, the end of the first inclined surface away from the third inclined surface is inclined downward, the end of the third inclined surface away from the first inclined surface is inclined downward, and the end of the second inclined surface near the preform is inclined downward.

[0014] This design serves to ensure stability and a tight seal.

[0015] Preferably, there are four side surfaces, which are evenly distributed around the circumference of each other, and each side surface forms a 90° angle with the adjacent side surface.

[0016] This setup further enhances the structural stability between the precast component and the bottom castable.

[0017] Preferably, the steel shell is provided with side heat insulation bricks, which are located on the side of the heat insulation layer away from the steel ladle.

[0018] This configuration improves the reliability of the vacuum lifting package.

[0019] Preferably, the steel shell is rotatably connected to the mounting bracket.

[0020] This setup allows the steel shell to be rotated on the mounting bracket.

[0021] Preferably, a driven gear is fixedly mounted on the steel shell, the axis of which coincides with the rotation axis of the steel shell on the mounting frame, and a driving gear is rotatably connected to the mounting frame, the driving gear meshing with the driven gear.

[0022] This setup enables the steel casing to rotate on the mounting bracket.

[0023] Preferably, the drive gear is fixedly connected to a turntable.

[0024] This configuration facilitates the rotation of the drive gear.

[0025] Preferably, the number of teeth of the driven gear is greater than the number of teeth of the driving gear.

[0026] This design facilitates the rotation of the steel casing.

[0027] Compared with the prior art, this utility model has achieved beneficial technical effects:

[0028] 1. After the insulation layer is installed on the inner wall of the steel shell, the precast component is installed at the bottom of the steel shell, and then the bottom castable is filled, covering the step. The bottom castable is engaged with the bottom castable through the step and the sealing ramp at the top of the step. This allows the bottom castable to provide support to the precast component in different directions through the step, effectively improving the structural stability between the precast component and the bottom castable. When a small amount of molten aluminum accidentally seeps between the precast component and the bottom castable, the sealing ramp can block the molten aluminum and keep it at the lower end of the sealing ramp, thus preventing the molten aluminum from seeping into the bottom of the steel shell and preventing the steel shell from being melted through by the molten aluminum. This improves the reliability of the vacuum lifting package and achieves the advantages of good stability and sealing of the precast component.

[0029] 2. The inclined sealing surface allows the bottom grout to be inserted between the sealing surface and the precast component, thereby securing the precast component and preventing it from loosening. This improves the stability and sealing between the precast component and the bottom grout. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of a vacuum lifting package according to an embodiment of the present invention;

[0031] Figure 2 This is a schematic diagram of the structure of the heat insulation layer, bottom and castable and side heat insulation bricks in the embodiment of this utility model;

[0032] Figure 3 This is a schematic diagram of the structure of the prefabricated component in an embodiment of this utility model.

[0033] The technical features referred to by the various reference numerals in the accompanying drawings are as follows:

[0034] 11. Mounting bracket; 12. Driven gear; 13. Driven gear; 14. Turntable; 21. Steel shell; 22. Bottom castable; 23. Insulation layer; 24. Side insulation brick; 31. Precast component; 32. Side; 33. Notch; 34. Sealing step; 35. Sealing slope; 36. First inclined surface; 37. Second inclined surface; 38. Third inclined surface. Detailed Implementation

[0035] To make the objectives, technical solutions and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments. However, the scope of protection of this utility model is not limited to the specific embodiments described below.

[0036] refer to Figure 1 , Figure 2 and Figure 3 A vacuum lifting package includes a mounting frame 11 and a lifting device.

[0037] The lifting device is mounted on the mounting frame 11 and includes a steel shell 21, a bottom castable refractory 22, and a precast component 31. The steel shell 21 is rotatably connected to the mounting frame 11, enabling the steel shell 21 to rotate on the mounting frame 11. A driven gear 12 is fixedly mounted on the steel shell 21, and the axis of the driven gear 12 coincides with the axis of rotation of the steel shell 21 on the mounting frame 11. A driving gear 13 is rotatably connected to the mounting frame 11, and the driving gear 13 meshes with the driven gear 12. Driving the driving gear 13 to rotate on the mounting frame 11 drives the driven gear 12 and the steel shell 21 to rotate, thus enabling the steel shell 21 to rotate on the mounting frame 11. A turntable 14 is fixedly connected to the driving gear 13, and rotating the turntable 14 by hand drives the driving gear 13 to rotate, facilitating the rotation of the driving gear 13. The number of teeth of the driven gear 12 is greater than the number of teeth of the driving gear 13, which increases the torque acting on the steel shell 21 when the driven gear 12 drives the driving gear 13 to rotate, thus saving effort and making it easier to drive the steel shell 21 to rotate.

[0038] The steel shell 21 is connected to the mounting frame 11. The inner wall of the steel shell 21 is provided with a heat insulation layer 23. Bottom castable refractory 22 is placed at the bottom of the steel shell 21, and the precast component 31 is placed within the bottom castable refractory 22. Side heat insulation bricks 24 are provided on the sides of the steel shell 21, located on the side of the heat insulation layer 23 away from the ladle. The side heat insulation bricks 24 block the molten aluminum on the sides of the steel shell 21, preventing the sides of the steel shell 21 from being melted through by the molten aluminum, thus improving the steel shell 21 and the reliability of the vacuum ladle lifting mechanism.

[0039] The precast component 31 has four sides 32, evenly distributed around its circumference, with each side 32 forming a 90° angle with its adjacent side. Each side 32 has a sealing step 34, integrally formed with the precast component 31. The top of the sealing step 34 has a sealing ramp 35, which slopes downwards at the end closest to the precast component 31. The upper surface of the bottom castable 22 is higher than the step, and the bottom castable 22 engages with the step. The sealing step 34 extends along the side 32, with both ends aligned with the side 32. This increases the length of the sealing step 34 on the side 32, improving the contact area between the sealing step 34 and the bottom castable 22, and further enhancing the structural stability between the precast component 31 and the bottom castable 22. A notch 33 is provided in the middle of the side 32. The sealing step 34 has a first inclined surface 36, a second inclined surface 37, and a third inclined surface 38 located within the notch 33. The end of the first inclined surface 36 away from the third inclined surface 38 slopes downward, the end of the third inclined surface 38 away from the first inclined surface 36 slopes downward, and the end of the second inclined surface 37 near the precast part 31 slopes downward. With four sides 32 facing different directions, the bottom castable 22 can provide support to the side 32 and the step, notch 33, first inclined surface 36, second inclined surface 37, and third inclined surface 38 on the side 32 from different directions, further improving the structural stability between the precast part 31 and the bottom castable 22.

[0040] In use, the steel shell 21 is connected to an aluminum suction pipe. A negative pressure machine extracts air from the steel shell 21, creating a negative pressure environment. The suction pipe is then moved to the molten aluminum location, and the vacuum pressure within the steel shell 21 draws the molten aluminum through the suction pipe into the shell, storing it in a vacuum ladle. After shutting off the negative pressure machine and moving the vacuum ladle to a designated position, the steel shell 21 is rotated on the mounting frame 11 to pour out the molten aluminum, thus achieving the function of transporting molten aluminum. One end of the suction pipe extends above the precast component 31. After the molten aluminum is drawn into the steel shell 21, it first comes into contact with the precast component 31, allowing the precast component 31 to withstand the impact of the molten aluminum, effectively reducing damage to the bottom castable 22 and extending its service life.

[0041] This embodiment has the following advantages:

[0042] After the insulation layer 23 is installed on the inner wall of the steel shell 21, the precast component 31 is installed at the bottom of the steel shell 21, and then the bottom castable 22 is filled, so that the bottom castable 22 covers the step. The bottom castable 22 is engaged with the step and the sealing slope 35 at the top of the step, so that the bottom castable 22 can provide support force to the precast component 31 in different directions through the step, thereby effectively improving the structural stability between the precast component 31 and the bottom castable 22. When a small amount of molten aluminum accidentally seeps into the space between the precast component 31 and the bottom castable 22, the sealing slope 35 can block the molten aluminum and keep it at the lower end of the sealing slope 35, thereby preventing the molten aluminum from seeping into the bottom of the steel shell 21 and preventing the steel shell 21 from being melted through by the molten aluminum. This improves the reliability of the vacuum lifting package and achieves the advantages of good stability and sealing of the precast component 31.

[0043] By using the inclined sealing slope 35, the bottom casting material 22 can be inserted between the sealing slope 35 and the precast part 31, thereby enabling the bottom casting material 22 to hold the precast part 31 tightly, effectively preventing the precast part 31 from loosening, and improving the stability and sealing between the precast part 31 and the bottom casting material 22.

[0044] When the bottom castable 22 is filled, it can enter the notch 33. After the bottom castable 22 hardens, it can be engaged with the precast part 31 in the notch 33. This allows the bottom castable 22 to provide support to the precast part 31 in different directions in the notch 33, thereby improving the structural stability between the precast part 31 and the bottom castable 22.

[0045] The first inclined surface 36, the second inclined surface 37, and the third inclined surface 38 are all inclined in different directions, which allows the bottom casting material 22 in the notch 33 to provide support in different directions on the first inclined surface 36, the second inclined surface 37, and the third inclined surface 38. This prevents the precast component 31 from loosening in different directions, effectively improves the stability of the precast component 31, and prevents cracks from appearing between the precast component 31 and the bottom casting material 22, thus playing a role in stability and sealing.

[0046] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on the utility model.

Claims

1. A vacuum lifting package, characterized in that: The device includes a mounting frame (11) and a lifting device. The lifting device is mounted on the mounting frame (11). The lifting device includes a steel shell (21), a bottom castable (22), and a precast component (31). The steel shell (21) is connected to the mounting frame (11). The inner wall of the steel shell (21) is provided with a heat insulation layer (23). The bottom castable (22) is placed at the bottom of the steel shell (21). The precast component (31) is placed inside the bottom castable (22). The precast component (31) has a side (32). The side (32) has a sealing step (34). The sealing step (34) is integrally formed with the precast component (31). The top of the sealing step (34) has a sealing slope (35). The end of the sealing slope (35) near the precast component (31) is inclined downward. The upper surface of the bottom castable (22) is higher than the step. The bottom castable (22) is engaged with the step.

2. The vacuum lifting package according to claim 1, characterized in that: The side (32) has a notch (33) in the middle.

3. The vacuum lifting package according to claim 2, characterized in that: The sealing step (34) extends along the side (32), and the two ends of the sealing step (34) are aligned with the side (32).

4. The vacuum lifting package according to claim 3, characterized in that: The sealing step (34) is provided with a first inclined surface (36), a second inclined surface (37) and a third inclined surface (38) located in the notch (33). The first inclined surface (36) is inclined downward at the end away from the third inclined surface (38), the third inclined surface (38) is inclined downward at the end away from the first inclined surface (36), and the second inclined surface (37) is inclined downward at the end near the preform (31).

5. The vacuum lifting package according to claim 1, characterized in that: There are a total of 4 side surfaces (32), which are evenly distributed around the circumference of each other. Each side surface (32) forms a 90° angle with the adjacent side surface (32).

6. The vacuum lifting package according to claim 1, characterized in that: The steel shell (21) is provided with side heat insulation bricks (24) on the side, and the side heat insulation bricks (24) are located on the side of the heat insulation layer (23) away from the steel ladle.

7. The vacuum lifting package according to claim 1, characterized in that: The steel shell (21) is rotatably connected to the mounting bracket (11).

8. The vacuum lifting package according to claim 7, characterized in that: The steel shell (21) is fixedly mounted with a driven gear (12), the axis of which coincides with the rotation axis of the steel shell (21) on the mounting frame (11), and the mounting frame (11) is rotatably connected with a driving gear (13), which meshes with the driven gear (12).

9. The vacuum lifting package according to claim 8, characterized in that: The drive gear (13) is fixedly connected to a turntable (14).

10. The vacuum lifting package according to claim 8, characterized in that: The number of teeth of the driven gear (12) is greater than the number of teeth of the driving gear (13).

Images