A ladle slag splashing prevention device

Abstract

The application discloses a ladle splash-proof slag device, which is arranged on a ladle car used for placing a ladle, the bottom of the ladle is provided with a sliding plate mechanism, and an oil cylinder bracket is arranged on the sliding plate mechanism; the device comprises a first protection mechanism and a second protection mechanism; the first protection mechanism comprises a fixed protection plate which is fixed to the upper surface of the ladle car; the second protection mechanism comprises a side protection plate and a fixed seat; the fixed seat is fixedly arranged on the oil cylinder bracket, the side protection plate is arranged on the fixed seat through a rotating shaft and can rotate relative to the fixed seat, and the axis direction of the rotating shaft is perpendicular to the loading direction of the oil cylinder; the side protection plate is located at the front of the oil cylinder bracket and is used for blocking molten steel rebounding from the ground of the ladle car. The device can save manpower while blocking the steel slag and the molten steel, and can also meet the use requirements of a robot system.

Description

Technical Field

[0001] This application relates to the field of metallurgical equipment technology, specifically to a ladle anti-slag splashing device. Background Technology

[0002] During the steel mill production process, empty ladles need to be hoisted onto ladle cars to receive molten steel. During this process, molten steel may splash out from the ladle opening. After falling onto the ladle car, the molten steel will bounce back onto the slide rail mechanism, hydraulic cylinder mounting base, and other parts of the ladle, affecting the use of the slide rail mechanism, increasing the workload of on-site maintenance and repair, and even damaging the slide rail mechanism if too much molten steel splashes out, thus affecting production.

[0003] Currently, most ladles and ladle cars lack dedicated anti-slag-splashing solutions and devices. Some ladles use a large protective cover to completely cover the slide mechanism, effectively preventing slag from being added. This method prevents slag from affecting the use of the slide mechanism, but the protective cover needs to be removed and placed manually when installing or removing the slide cylinder. However, this method also has some drawbacks: firstly, the overall weight of the protective cover increases the labor intensity of on-site operators; secondly, the protective cover cannot meet the needs of robotic automatic installation and removal of the slide cylinder, and the operation is relatively cumbersome. Utility Model Content

[0004] Therefore, this application provides a ladle anti-splash device to solve the problems of existing technologies, such as molten steel splashing easily damaging the ladle car and slide mechanism, and the protective cover being too heavy and unable to adapt to the automatic disassembly and assembly of the slide cylinder by robots.

[0005] To achieve the above objectives, this application provides the following technical solution:

[0006] A ladle anti-splash device is installed on a ladle car, the ladle car being used to place the ladle, the bottom of the ladle being equipped with a sliding plate mechanism, and a hydraulic cylinder support being installed on the sliding plate mechanism; it includes a primary protection mechanism and a secondary protection mechanism;

[0007] The primary protection mechanism includes a fixed protective plate, which is fixed to the upper surface of the ladle car;

[0008] The secondary protection mechanism includes a side protection plate and a fixed base; the fixed base is fixedly installed on the cylinder support, and the side protection plate is installed on the fixed base via a rotating shaft and can rotate relative to the fixed base. The axis of the rotating shaft is perpendicular to the insertion direction of the cylinder; the side protection plate is located in front of the cylinder support and is used to block molten steel rebounding from the ground of the ladle car.

[0009] Optionally, the primary protection mechanism further includes a movable protective plate; the movable protective plate is installed on the side of the fixed protective plate near the ladle via a flipping shaft, the axis of the flipping shaft being parallel to the surface of the fixed protective plate, so that the movable protective plate can flip up and down relative to the fixed protective plate.

[0010] Optionally, a limiting plate is fixed on the side of the movable protective plate close to the fixed protective plate, and the limiting plate can contact the upper surface of the fixed protective plate during the rotation of the movable protective plate.

[0011] Optionally, a counterweight is installed on the movable protective plate, and the counterweight is located on the side of the flipping shaft close to the fixed protective plate, which is used to drive the limiting plate to overlap the fixed protective plate.

[0012] Optionally, one side of the side guard plate is bent to form a retaining edge, which can contact the side of the cylinder support to restrict the side guard plate from rotating toward the cylinder insertion position.

[0013] Optionally, the rotating shaft is located near the top of the side guard plate and away from the side of the guard.

[0014] Optionally, the secondary protection mechanism further includes a top protective plate, which is fixed on the cylinder support and is used to protect the cylinder's locking pin from above.

[0015] Optionally, the side of the movable protective plate facing the ladle is arc-shaped to fit the side of the ladle.

[0016] Compared with the prior art, this application has at least the following beneficial effects:

[0017] 1. The primary protection mechanism can prevent most of the molten steel from splashing onto the sliding plate mechanism, playing a major protective role when receiving molten steel; the secondary protection mechanism can prevent small pieces of steel slag that bounce back from affecting the use of the sliding plate mechanism. The combination of the two can effectively solve the adverse effects of steel slag on the sliding plate mechanism.

[0018] Moreover, since the side protective plate is rotatable, it can be automatically opened when the slide cylinder is inserted and automatically restored under gravity when the slide cylinder is removed, without the need for additional actions, which can adapt to the application scenarios of robots automatically disassembling and assembling slide cylinders.

[0019] 2. The movable protective plate on the side closest to the ladle automatically flips downwards when the ladle is inserted and the two collide, preventing a hard impact. It is self-adaptive and will not be damaged or have its protective effect compromised. Under natural conditions or after external interference is removed, the movable protective plate automatically returns to its initial state, ensuring protective effectiveness during use. Attached Figure Description

[0020] To more intuitively illustrate the prior art and this application, exemplary drawings are provided below. It should be understood that the specific shapes and structures shown in the drawings should not generally be regarded as limiting conditions for implementing this application; for example, based on the technical concept disclosed in this application and the exemplary drawings, those skilled in the art are able to easily make conventional adjustments or further optimizations to the addition / reduction / classification, specific shapes, positional relationships, connection methods, size ratios, etc. of certain units (components).

[0021] Figure 1 This is a schematic diagram of the structure of a ladle anti-slag splashing device provided in an embodiment of this application;

[0022] Figure 2 for Figure 1 A perspective view of a Class I protective structure;

[0023] Figure 3 This is a partial structural schematic diagram of a ladle anti-slag splashing device provided in an embodiment of this application;

[0024] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0025] Figure 5 for Figure 3 A schematic diagram of an explosion at a secondary protection level.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Primary protective mechanism; 2. Secondary protective mechanism; 3. Ladle car; 4. Cylinder support; 5. Fixed protective plate; 6. Movable protective plate; 7. Tilting shaft; 8. Limiting plate; 9. Counterweight; 10. Side protective plate; 11. Fixed seat; 12. Top protective plate; 13. Rotating shaft; 14. Edge guard. Detailed Implementation

[0028] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] In the description of this application: unless otherwise stated, "multiple" means two or more. Expressions such as "including," "comprising," and "having" also mean "not limited to" (certain units, components, materials, steps, etc.).

[0030] The terms used in this application, such as "upper," "lower," "left," "right," and "middle," are generally used to indicate the general relative positional relationship for the purpose of intuitive understanding by referring to the accompanying drawings, and are not absolute limitations on the positional relationship in the actual product.

[0031] A ladle anti-slag splashing device, as described in the following reference Figures 1-3It includes a primary protection mechanism 1 and a secondary protection mechanism 2, which are installed on the ladle car 3. The middle part of the ladle car 3 is used to place the empty ladle, and a sliding plate mechanism is installed at the bottom of the ladle. A hydraulic cylinder support 4 is installed on the sliding plate mechanism.

[0032] The primary protective mechanism 1 includes a fixed protective plate 5 and a movable protective plate 6, used to block some of the splashed steel slag. The fixed protective plate 5 is horizontally fixed to the upper surface of the ladle car 3, and is positioned directly above the sliding plate mechanism. The movable protective plate 6 is installed on the side of the fixed protective plate 5 closest to the ladle via a flip shaft 7, and the movable protective plate 6 and the fixed protective plate 5 are both positioned above the sliding plate mechanism, thus blocking most of the steel slag for the sliding plate mechanism.

[0033] Specifically, two flip shafts 7 are provided, located on both sides of the connection between the movable protective plate 6 and the fixed protective plate 5, to jointly maintain the stability of the movable protective plate 6. The two flip shafts 7 are coaxially arranged, and their axes are parallel to the surface of the fixed protective plate 5, allowing the movable protective plate 6 to flip up and down relative to the fixed protective plate 5. It should be noted that in order to ensure the smooth flipping of the movable protective plate 6, the flip shafts 7 should be located away from the ends.

[0034] Because the movable protective plate 6 can be tilted up and down, when the ladle is hoisted onto the ladle car 3, if the ladle collides with the movable protective plate 6, the movable protective plate 6 will rotate around the tilting shaft 7 to avoid a hard collision with the ladle. The final position of the ladle will be corrected, and eventually the ladle will disengage from the movable protective plate 6. At this point, under the action of gravity, the movable protective plate 6 will rotate around the tilting shaft 7 and return to a horizontal position. This device avoids damage to the ladle's splash-proof device when the ladle collides with the movable protective plate 6, and has a certain degree of self-adaptability.

[0035] Furthermore, a limiting plate 8 is fixed on the upper surface of the movable protective plate 6 near the fixed protective plate 5. During the rotation of the movable protective plate 6, the limiting plate 8 can contact the upper surface of the fixed protective plate 5. The limiting plate 8 restricts the rotation range of the movable protective plate 6. When the movable protective plate 6 flips over until the limiting plate 8 overlaps with the fixed protective plate 5, the movable protective plate 6 stops flipping and is in a horizontal state, returning to its working state of blocking steel slag.

[0036] To help the movable protective plate 6 reset, a counterweight 9 is also installed on the movable protective plate 6. The counterweight 9 is located on the side of the flipping shaft 7 closest to the fixed protective plate 5, and is used to increase the weight of the movable protective plate 6 on the side closest to the fixed protective plate 5, thereby driving the limiting plate 8 to overlap the fixed protective plate 5.

[0037] In this embodiment, the side of the movable protective plate 6 facing the ladle is set to be arc-shaped to match the side of the ladle. This can increase the blocking area and effectively avoid collisions with the ladle.

[0038] Reference Figures 3-5 The secondary protection mechanism 2 includes a side protection plate 10, a fixed base 11, and a top protection plate 12. The fixed base 11 is fixedly installed on the top of the cylinder support 4. The side protection plate 10 is mounted on the fixed base 11 via a rotating shaft 13 and can rotate relative to the fixed base 11. The axis of the rotating shaft 13 is perpendicular to the insertion direction of the cylinder. Specifically, the rotating shaft 13 is located near the top of the side protection plate 10, so that the side protection plate 10 can return to its original position under its own weight when no external force is applied.

[0039] The side guard plate 10 is installed on the front of the cylinder support 4 to block molten steel rebounding from the ground of the ladle car 3. The side guard plate 10 can be set to a vertical position.

[0040] Since the axis of the rotating shaft 13 is perpendicular to the insertion direction of the hydraulic cylinder, the cylinder housing will push the side protective plate 10 to rotate around the rotating shaft 13 during the forward pushing of the hydraulic cylinder. No other action is needed to open the side protective plate 10, which can adapt to the scenario of automatic disassembly and assembly of the skateboard hydraulic cylinder by the robot. During the disassembly of the skateboard hydraulic cylinder, the side protective plate 10 automatically returns to its original position under the action of gravity.

[0041] Furthermore, one side of the side guard plate 10 is bent to form a retaining edge 14. The retaining edge 14 can contact the side of the cylinder support 4 and can play a limiting role in restricting the side guard plate 10 from rotating toward the cylinder insertion position.

[0042] The top protective plate 12 is fixed to the top side of the cylinder support 4 to protect the cylinder's locking pin from above.

[0043] The implementation principle of this application embodiment is as follows: After the ladle is hoisted to the designated position on the ladle car 3, the fixed protective plate 5 and the movable protective plate 6 can block most of the molten steel and slag falling from the ladle opening, preventing them from falling near the sliding plate mechanism. The remaining molten steel and small slag that are not blocked will be blocked by the side protective plate 10 and the top protective plate 12, preventing slag from entering the cylinder support of the sliding plate mechanism, thus playing the role of preventing slag splashing from the ladle.

[0044] The technical features of the above embodiments can be combined in any way (as long as there is no contradiction in the combination of these technical features). For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described; these embodiments not explicitly written should also be considered to be within the scope of this specification.

Claims

1. A ladle slag preventing device, which is arranged on a ladle car (3) for placing a ladle, the bottom of the ladle is provided with a slide plate mechanism, and an oil cylinder bracket (4) is arranged on the slide plate mechanism; characterized in that: It includes a primary protective structure (1) and a secondary protective structure (2); The primary protection mechanism (1) includes a fixed protective plate (5), which is fixed to the upper surface of the ladle car (3); The secondary protection mechanism (2) includes a side protection plate (10) and a fixed seat (11); the fixed seat (11) is fixedly installed on the cylinder support (4), and the side protection plate (10) is installed on the fixed seat (11) through a rotating shaft (13) and can rotate relative to the fixed seat (11). The axis of the rotating shaft (13) is perpendicular to the insertion direction of the cylinder; the side protection plate (10) is located on the front of the cylinder support (4) and is used to block the molten steel rebounding from the ground of the ladle car (3).

2. The ladle dipleg device of claim 1, wherein: The primary protection mechanism (1) also includes a movable protective plate (6); the movable protective plate (6) is installed on the side of the fixed protective plate (5) near the ladle via a flipping shaft (7), and the axis of the flipping shaft (7) is parallel to the surface of the fixed protective plate (5), so that the movable protective plate (6) can flip up and down relative to the fixed protective plate (5).

3. The ladle dipleg device of claim 2, wherein: A limiting plate (8) is fixed on the side of the movable protective plate (6) close to the fixed protective plate (5). During the rotation of the movable protective plate (6), the limiting plate (8) can contact the upper surface of the fixed protective plate (5).

4. The ladle dipleg device of claim 3, wherein: A counterweight (9) is installed on the movable protective plate (6). The counterweight (9) is located on the side of the flipping shaft (7) close to the fixed protective plate (5) and is used to drive the limiting plate (8) to overlap the fixed protective plate (5).

5. The ladle dipleg device of claim 1, wherein: One side of the side guard plate (10) is bent to form a retaining edge (14), which can contact the side of the cylinder support (4) to restrict the side guard plate (10) from rotating toward the cylinder insertion position.

6. The ladle dipleg device of claim 5, wherein: The rotating shaft (13) is located near the top of the side guard plate (10) and away from the side guard (14).

7. The ladle dipleg device of claim 1, wherein: The secondary protection mechanism (2) also includes a top protection plate (12), which is fixed on the cylinder support (4) and is used to protect the cylinder's locking pin from above.

8. The ladle dipleg device of claim 2, wherein: The movable protective plate (6) facing the ladle has an arc shape that matches the side of the ladle.

Images