Heteromorphic connecting rod type ladle rotary table and continuous casting equipment

Abstract

The application discloses a same type of connecting rod type ladle rotary table and a continuous casting equipment, and the ladle rotary table comprises a general module and small ladle modules and large ladle modules which can be switched and used on the general module; the general module comprises a rotary table base capable of bearing a large ladle, a base, a rotary transmission device and a lifting transmission device, the small ladle module comprises a rotary table matched with a small ladle, a lifting arm, a left fork arm, a right fork arm and a weighing box, and the large ladle module comprises a rotary table matched with a large ladle, a lifting arm, a left fork arm, a right fork arm and a weighing box; the left fork arm and the right fork arm of the large ladle module are symmetrically arranged, the center line of the large ladle coincides with the center line of the ladle rotary table when the large ladle is installed, the left fork arm and the right fork arm of the small ladle module are asymmetrically arranged, the center line of the small ladle deviates from the center line of the ladle rotary table after the small ladle is installed, and the center line of a sliding nozzle of the small ladle coincides with the corresponding position of the center line of the sliding nozzle when the large ladle is installed. The application reduces the capital investment and the impact point of molten steel falling into the intermediate tank is unique.

Description

Technical Field

[0001] This invention belongs to the field of metallurgical continuous casting equipment, specifically relating to a rod-type ladle rotary table with different shapes and a continuous casting equipment. Background Technology

[0002] A ladle turret supports and transports ladles of steel, possessing multiple functions including rotation, lifting, weighing, locking, and heat preservation. During operation, it receives a full ladle of molten steel from the steelmaking workshop at the receiving position and rotates to the continuous casting machine's pouring position. Then, it opens the ladle's sliding gate to pour the molten steel into the tundish. Simultaneously, it returns the empty ladle to the receiving position for crane transport, thus enabling continuous casting of multiple heats. Ladle turrets come in various forms; among them, the linkage-type (butterfly-type) turret is highly adaptable to different types of ladles and has low manufacturing and transportation costs, making it widely used.

[0003] With the advancement of converter transformation and upgrading, the ladle turret must meet the production needs of both small ladles during the transition period and large ladles in the long term. The two types of ladles have very different shapes and sliding gate positions. If two ladle turrets are used respectively, the infrastructure investment will be very high. Utility Model Content

[0004] The purpose of this utility model is to provide a linkage-type ladle turret with different shapes and a continuous casting equipment including the above-mentioned ladle turret. The ladle turret realizes the universality of civil engineering foundation and reduces infrastructure investment. Through design, the impact point of molten steel falling into the intermediate tank is unique, which improves the use effect.

[0005] The technical solution adopted in this utility model is: A linkage-type ladle slewing platform with different configurations includes a general module and small and large ladle modules that can be switched between the general module. The general module includes a slewing platform foundation, a base, a slewing transmission device, and a lifting transmission device to support the large ladle. The small ladle module includes a turntable, a lifting arm, a left fork arm, a right fork arm, and a weighing box that match the small ladle. The large ladle module includes a turntable, a lifting arm, a left fork arm, a right fork arm, and a weighing box that match the large ladle. The left and right forks of the large ladle module are symmetrically arranged, and the centerline of the large ladle coincides with the centerline of the ladle slewing platform when it is installed. The left and right forks of the small ladle module are asymmetrically arranged, and the centerline of the small ladle deviates from the centerline of the ladle slewing platform after it is installed, but the centerline of the sliding nozzle coincides with the corresponding position of the centerline of the sliding nozzle when the large ladle is installed.

[0006] Preferably, the small steel ladle is 60t-100t grade, and the large steel ladle is 150t-250t grade.

[0007] Preferably, an anti-torsion crossbeam is provided between the left and right forks of the small steel ladle module.

[0008] Preferably, the anti-torsion crossbeam includes fixed sections at both ends and a splicing section in the middle. The fixed sections are fixed to the left and right forks of the small steel bag module, respectively, and the splicing section is spliced ​​between the fixed sections at both ends.

[0009] Preferably, one or two anti-torsion crossbeams are provided between the left and right forks of the small steel ladle module.

[0010] Preferably, the left and right forks of the small steel ladle module and the left and right forks of the large steel ladle module both adopt a box-shaped cross section.

[0011] Preferably, the general module also includes a hydraulic slip ring.

[0012] A continuous casting apparatus comprising the aforementioned identical but different-shaped connecting rod ladle rotary table.

[0013] The beneficial effects of this utility model are: In this ladle slewing platform, the general-purpose modules related to the civil engineering foundation are manufactured according to the capacity to support large ladles. The small ladle module and the large ladle module are designed differently for small and large ladles respectively. By switching between them, the platform can adapt to the production needs of large and small ladles at different times, achieving universality of the civil engineering foundation and reducing infrastructure investment. The small and large ladles have significant dimensional differences. Without design changes, their sliding gate centerlines will not coincide after installation, meaning the impact point of molten steel falling into the intermediate tank is not unique. Therefore, in this application, the large ladle module retains its original design, while the left and right forks of the small ladle module are asymmetrically arranged. This allows the corresponding position of the sliding gate centerline after the small ladle is installed to coincide with that of the sliding gate centerline when the large ladle is installed. In other words, the design ensures that the impact point of molten steel falling into the intermediate tank is unique, improving the performance. Attached Figure Description

[0014] Figure 1 This is a comparison view in the front view direction of the linkage-type ladle rotary table with different shapes and the same position, when installing small and large ladles respectively, where a) is the installation of large ladle and b) is the installation of small ladle.

[0015] Figure 2 The above-view comparison diagrams show the installation of small and large steel ladles on the rod-type ladle rotary table with different shapes in the embodiment of this utility model, where a) is the installation of the large steel ladle and b) is the installation of the small steel ladle.

[0016] Figure 3 This is a comparison diagram in cross-sectional direction of the installation of the small steel ladle and the large steel ladle in the embodiments of this utility model, where a) is the installation of the large steel ladle and b) is the installation of the small steel ladle.

[0017] In the diagram: 1- Rotary table foundation; 2- Rotary transmission device; 3- Base; 4- Hydraulic slip ring; 5- Lifting transmission device; 6- Turntable of the large ladle module; 7- Lifting arm of the large ladle module; 8- Left fork arm of the large ladle module; 9- Right fork arm of the large ladle module; 10- Weighing box of the large ladle module; 11- Large ladle; 12- Turntable of the small ladle module; 13- Lifting arm of the small ladle module; 14- Anti-torsion beam of the small ladle module; 15- Left fork arm of the small ladle module; 16- Right fork arm of the small ladle module; 17- Weighing box of the small ladle module; 18- Small ladle. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0021] The features and performance of this application will be further described in detail below with reference to the embodiments.

[0022] Example 1 This embodiment discloses a linkage-type ladle rotary table with different shapes and positions, such as... Figures 1 to 3 As shown: This includes a general-purpose module and small and large ladle modules that can be switched between the general-purpose module; the general-purpose module includes a turntable base 1, a base 3, a rotary transmission device 2, and a lifting transmission device 5 capable of supporting the large ladle; the small ladle module includes a turntable 12, a lifting arm 13, a left fork arm 15, a right fork arm 16, and a weighing box 17 that match the small ladle 18; the large ladle module includes a turntable 6, a lifting arm 7, a left fork arm 8, a right fork arm 9, and a weighing box 10 that match the large ladle 11. Furthermore, as... Figure 2 and Figure 3As shown, the left fork arm 8 and right fork arm 9 of the large ladle module are symmetrically arranged. When the large ladle 11 is installed, its center line coincides with the center line of the ladle turret. The left fork arm 15 and right fork arm 16 of the small ladle module are asymmetrically arranged. After the small ladle 18 is installed, its center line deviates from the center line of the ladle turret, but the center line of the sliding nozzle coincides with the corresponding position of the center line of the sliding nozzle when the large ladle 11 is installed.

[0023] In this ladle slewing platform, the general-purpose modules related to the civil engineering foundation are manufactured according to the load-bearing capacity of the large ladle. The small ladle module and the large ladle module are designed differently according to the small ladle 18 and the large ladle 11, respectively. By switching between them, the platform can adapt to the production needs of the large ladle 11 and the small ladle 18 at different times, achieving universality of the civil engineering foundation and reducing infrastructure investment. The small ladle 18 and the large ladle 11 have significant dimensional differences. If no design changes are made, the center lines of their sliding nozzles will not coincide after installation, meaning that the impact point of molten steel falling into the intermediate tank is not unique. Therefore, in this application, the large ladle module retains its original design, while the left fork arm 15 and the right fork arm 16 of the small ladle module are asymmetrically arranged. This allows the corresponding position of the sliding nozzle center line of the small ladle 18 after installation to coincide with the corresponding position of the sliding nozzle center line of the large ladle 11 during installation. In other words, the design ensures that the impact point of molten steel falling into the intermediate tank is unique, improving the performance.

[0024] The models of the small steel ladle 18 and the large steel ladle 11 are not limited according to actual settings; the small steel ladle can be 60t-100t class, and the large steel ladle can be 150t-250t class. In this embodiment, the small steel ladle 18 is a 60t class small steel ladle, and the large steel ladle 11 is a 150t class large steel ladle.

[0025] In this embodiment, preferably: Figure 1 and Figure 2 As shown, an anti-torsion beam 14 is provided between the left fork arm 15 and the right fork arm 16 of the small steel ladle module. The anti-torsion beam 14 can prevent the asymmetrical left fork arm 15 and right fork arm 16 in the small steel ladle module from torsion, thus preventing the small steel ladle 18 from tipping over. Furthermore, as... Figure 2 As shown, the anti-torsion crossbeam 14 includes fixed sections at both ends and a splicing section in the middle. The fixed sections are fixed to the left fork arm 15 and the right fork arm 16 of the small steel ladle module, respectively, and the splicing section is spliced ​​between the fixed sections at both ends. This arrangement facilitates the step-by-step installation and disassembly of the left fork arm 15, the right fork arm 16, and the anti-torsion crossbeam 14 in the small steel ladle module. Furthermore, one or two anti-torsion crossbeams 14 are provided between the left fork arm 15 and the right fork arm 16 of the small steel ladle module, as needed.

[0026] In this embodiment, preferably: Figure 2 As shown, the left fork arm 15 and right fork arm 16 of the small steel ladle module, and the left fork arm 8 and right fork arm 9 of the large steel ladle module, all adopt box-shaped cross sections to ensure sufficient structural strength.

[0027] In this embodiment, preferably: Figure 1 As shown, the general module also includes a hydraulic slip ring 4 to ensure smooth rotation.

[0028] Example 2 A continuous casting apparatus comprising the aforementioned identical but different-shaped connecting rod ladle rotary table.

[0029] The embodiments described above are some, but not all, of the embodiments of this application. The detailed description of the embodiments of this application is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

Claims

1. A type of rotating steel ladle with a linkage and irregular shape, characterized in that: It includes a general module and small ladle modules and large ladle modules that can be switched on the general module; the general module includes a turntable foundation, base, rotary transmission device and lifting transmission device that can support the large ladle; the small ladle module includes a turntable, lifting arm, left fork arm, right fork arm and weighing box that match the small ladle; the large ladle module includes a turntable, lifting arm, left fork arm, right fork arm and weighing box that match the large ladle; the left and right forks of the large ladle module are symmetrically arranged, and the center line of the large ladle coincides with the center line of the ladle turntable when it is installed; the left and right forks of the small ladle module are asymmetrically arranged, and the center line of the small ladle deviates from the center line of the ladle turntable after it is installed, but the center line of the sliding nozzle coincides with the corresponding position of the center line of the sliding nozzle when the large ladle is installed.

2. The parallel-type steel ladle rotary table with different shapes as described in claim 1, characterized in that: Small steel ladles are 60t-100t in size, and large steel ladles are 150t-250t in size.

3. The parallel-type, non-linear ladle rotary table as described in claim 1, characterized in that: An anti-torsion crossbeam is provided between the left and right forks of the small steel ladle module.

4. The parallel-type steel ladle rotary table with different shapes as described in claim 3, characterized in that: The anti-torsion crossbeam includes fixed sections at both ends and splicing sections in the middle. The fixed sections are fixed to the left and right forks of the small steel ladle module, respectively, and the splicing section is spliced ​​between the fixed sections at both ends.

5. The parallel-type steel ladle rotary table with different shapes as described in claim 3, characterized in that: The small steel ladle module has one or two anti-torsion crossbeams between the left and right forks.

6. The parallel-type, non-linear ladle rotary table as described in claim 1, characterized in that: The left and right forks of the small steel ladle module and the left and right forks of the large steel ladle module both adopt box-shaped cross sections.

7. The parallel-type steel ladle rotary table with different shapes as described in claim 1, characterized in that: The general-purpose module also includes hydraulic slip rings.

8. A continuous casting equipment, characterized in that: It includes a linkage-type ladle rotary table with different shapes as described in any one of claims 1 to 7.

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