Steel ladle sliding plate with auxiliary composite reinforcing structure

Abstract

The utility model discloses a steel ladle sliding plate with an auxiliary composite reinforcing structure, and particularly relates to the technical field of steel ladle sliding plates, which comprises a bottom frame body, a lower sliding plate brick is embedded in the surface of the bottom frame body, a sliding plate sleeve frame is hinged to one side of the bottom frame body, and an upper sliding plate brick is arranged in the sliding plate sleeve frame. Reinforcing mechanisms are arranged in the lower sliding plate brick and the upper sliding plate brick and comprise a plurality of transverse reinforcing ribs fixedly arranged in the lower sliding plate brick and the upper sliding plate brick respectively, vertical reinforcing ribs are fixedly arranged on one sides of the transverse reinforcing ribs, and the transverse reinforcing ribs and the vertical reinforcing ribs are distributed in a grid shape. A reinforcing layer is fixedly arranged on one side of the lower sliding plate brick and one side of the upper sliding plate brick, and a reinforcing layer is fixedly arranged on the other side of the lower sliding plate brick and the other side of the upper sliding plate brick. The structural strength of the lower sliding plate brick and the upper sliding plate brick is enhanced, thermal stress and external force are resisted, the service life is prolonged, and the reliability and durability of the sliding plate are comprehensively improved.

Description

Technical Field

[0001] This utility model relates to the field of steel ladle skateboard technology, and more specifically, to a steel ladle skateboard with an auxiliary composite reinforcement structure. Background Technology

[0002] A ladle is used in steel plants and foundries to receive molten steel and perform pouring operations in front of open-hearth furnaces, electric furnaces, or converters. A sliding gate is a control device for molten steel during the casting process of a continuous casting machine. It can precisely adjust the water flow from the ladle to the tundish, so that the inflow and outflow of molten steel reach a balance, making the continuous casting operation easier to control. It is an indispensable part of smelting.

[0003] During use, the temperature of the ladle's tap slide plate will rise. When the plate is subjected to impact or friction after continuous heating, it will wear down and reduce its service life, affecting the efficiency and cost of ladle casting. Furthermore, the repeated movement of the tap slide plate during its movement will cause wear and displacement, affecting the ladle casting effect.

[0004] A search revealed that Chinese patent CN221516079U discloses a ladle slide plate. This structure uses a positioning rod fitted into a positioning hole to support the ladle slide plate body, reducing the impact force on the ladle slide plate body, decreasing wear between the ladle slide plate body, the base frame, and the slide plate sleeve, and improving the stability of the ladle slide plate body during horizontal movement. Furthermore, driven by a water pump, the heat exchange pipes reduce the high temperature generated by the base frame body during operation. The liquid flows along the heat exchange pipes into the outlet pipe and then back to the storage tank. Driven by the water pump, the coolant circulates between the storage tank, inlet pipe, heat exchange pipe, and outlet pipe, improving the cooling effect on the base frame body, reducing damage caused by prolonged high temperatures, and extending the service life of the ladle slide plate.

[0005] However, in actual use, this structure relies solely on the positioning rod to support the ladle nozzle slide plate and reduce impact. This method is too simplistic. During use, the ladle nozzle slide plate is subjected to not only vertical impact forces but also multi-directional forces generated by the flow of molten steel. The single positioning rod support cannot effectively disperse and resist these forces from multiple dimensions, making the slide plate prone to structural deformation under complex stress conditions. Long-term use may lead to damage to the slide plate and affect the normal use of the ladle slide plate. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a steel ladle slide plate with an auxiliary composite reinforcement structure to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A steel ladle slide with an auxiliary composite reinforcement structure includes a base frame, a lower slide block is embedded in the surface of the base frame, a slide frame is hinged to one side of the base frame, an upper slide block is provided inside the slide frame, and a reinforcement mechanism is provided inside both the lower and upper slide blocks.

[0009] The reinforcing mechanism includes multiple horizontal reinforcing ribs fixedly disposed inside the lower and upper sliding blocks, respectively. Each of the horizontal reinforcing ribs has a vertical reinforcing rib fixedly disposed on one side. The horizontal and vertical reinforcing ribs are distributed in a grid pattern. A reinforcing layer is fixedly disposed on one side of the lower and upper sliding blocks, and an enhancement layer is fixedly disposed on the other side of the lower and upper sliding blocks. A graphite coating is fixedly disposed on one side of the enhancement layer and the enhancement layer. The enhancement layer is made of corundum composite material and ceramic fiber reinforced material. Through holes are opened on the surface of the lower and upper sliding blocks, and a casting ring is fixedly disposed inside the through holes.

[0010] By adopting the above technical solution: the grid distribution of horizontal and vertical reinforcing ribs enhances the structural strength of the lower and upper sliding plate bricks, resists thermal stress and external forces, extends service life, and the ceramic fiber reinforcement layer provides thermal insulation and increases structural strength.

[0011] As a further description of the above technical solution: an auxiliary mechanism is provided on one side of the skateboard frame. The auxiliary mechanism includes a fixed frame fixedly installed on one side of the skateboard frame. A hydraulic cylinder is fixedly installed inside the fixed frame. The output end of the hydraulic cylinder is connected to the surface of the upper skateboard brick. Two guide grooves are opened on the surface of the base frame. T-shaped guide blocks are slidably installed inside the two guide grooves. Nickel-based alloy strips are embedded in the surface of the T-shaped guide blocks.

[0012] By adopting the above technical solution, precise control of molten steel flow and on / off is achieved. The guide groove of the base frame and the T-shaped guide block cooperate to provide stable guidance for the movement of the upper slide block, ensuring its movement accuracy and greatly enhancing wear resistance. This ensures the reliability of the guide structure during multiple uses and maintains the stable operation of the slide.

[0013] As a further description of the above technical solution: both the base frame and the skateboard frame are made of aluminum-carbon refractory material, and the surfaces of the base frame and the skateboard frame are provided with a protective layer, which is made of silicon carbide.

[0014] By adopting the above technical solution: the base frame and the slide frame are made of aluminum-carbon refractory material, which has good fire resistance and can withstand the high temperature environment inside the ladle, ensuring the basic function of the ladle slide. The silicon carbide protective layer on the surface, with its high hardness, high wear resistance and oxidation resistance, can resist external erosion and friction, prevent structural damage and extend the service life of the base frame and the slide frame.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] By setting up a reinforcement mechanism, compared with the existing technology, the horizontal and vertical reinforcing ribs are distributed in a grid pattern inside the skateboard brick, which can effectively share thermal stress, limit deformation and crack propagation, enhance structural strength in multiple directions, resist the thermal shock and mechanical force of molten steel, and extend the service life of the skateboard. Moreover, the reinforcing layer made of corundum composite material protects the inside of the skateboard with its high hardness, strength and corrosion resistance. The ceramic fiber reinforced material reinforcing layer provides additional strength, reduces heat transfer, insulates heat and prevents external damage. The graphite coating has both lubrication and high temperature resistance, reduces interlayer friction, protects the reinforcing layer and the reinforcing layer, and comprehensively improves the reliability and durability of the skateboard.

[0017] By incorporating an auxiliary mechanism, compared to existing technologies, the hydraulic cylinder can be activated to move the upper sliding plate brick, precisely adjusting its relative position to the lower sliding plate brick, controlling the opening of the through hole, and achieving precise control of molten steel flow rate and velocity to meet different casting requirements. After the steel output reaches the target, the through hole can be repositioned to precisely close the molten steel channel. Furthermore, the T-shaped guide block slides within the guide groove, guiding the sliding plate movement. Nickel-based alloy strips enhance its wear resistance and strength, ensuring precise and stable movement of the upper sliding plate brick during multiple opening and closing operations, guaranteeing accurate opening and closing of the molten steel channel. The graphite coating provides lubrication and high-temperature resistance, reducing friction between the layers within the sliding plate brick, preventing structural damage due to friction, and protecting the reinforcing and strengthening layers from accelerated oxidation or damage at high temperatures. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the reinforcing mechanism of this utility model.

[0020] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0021] Figure 4 This is a schematic diagram of the overall cross-sectional structure of this utility model.

[0022] Figure 5 This is a schematic diagram of the auxiliary mechanism structure of this utility model.

[0023] The attached diagram is labeled as follows: 1. Base frame; 2. Lower slide block; 3. Slide sleeve; 4. Upper slide block; 5. Horizontal reinforcing rib; 6. Vertical reinforcing rib; 7. Reinforcing layer; 8. Enhancement layer; 9. Graphite coating; 10. Through hole; 11. Casting ring; 12. Fixing frame; 13. Hydraulic cylinder; 14. Guide groove; 15. T-shaped guide block; 16. Nickel-based alloy strip; 17. Protective layer. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] The embodiments disclosed in this application are as follows: Figure 1-5 The steel ladle slide with auxiliary composite reinforcement structure shown includes a base frame 1, a lower slide block 2 is embedded in the surface of the base frame 1, a slide sleeve 3 is hinged to one side of the base frame 1, an upper slide block 4 is provided inside the slide sleeve 3, and a reinforcement mechanism is provided inside both the lower slide block 2 and the upper slide block 4.

[0026] The reinforcing mechanism includes multiple horizontal reinforcing ribs 5 fixedly disposed inside the lower sliding block 2 and the upper sliding block 4, respectively. Vertical reinforcing ribs 6 are fixedly disposed on one side of each horizontal reinforcing rib 5, and the horizontal and vertical reinforcing ribs 5 and 6 are distributed in a grid pattern. A reinforcing layer 7 is fixedly disposed on one side of the lower sliding block 2 and the upper sliding block 4, and an reinforcing layer 8 is fixedly disposed on the other side of the lower sliding block 2 and the upper sliding block 4. A graphite coating 9 is fixedly disposed on one side of both the reinforcing layer 7 and the reinforcing layer 8. The reinforcing layer 7 is made of corundum composite material, and the reinforcing layer 8 is made of ceramic fiber reinforced material. Through holes 10 are opened on the surface of both the lower sliding block 2 and the upper sliding block 4, and casting rings 11 are fixedly disposed inside the through holes 10. During use, the slide block is subjected to high temperatures from molten steel, resulting in internal temperature gradients and thermal stress. Horizontal reinforcing ribs 5 and vertical reinforcing ribs 6 are distributed in a grid pattern inside the lower slide block 2 and upper slide block 4. They intertwine to form a robust support network. Under high temperatures, when thermal stress is generated inside the lower slide block 2 and upper slide block 4, the horizontal reinforcing ribs 5 and vertical reinforcing ribs 6 can share these stresses, limiting the deformation and crack propagation caused by thermal stress. They can enhance the structural strength of the upper slide block 4 and lower slide block 2 from multiple directions, enabling them to withstand the thermal shock of molten steel and the mechanical force generated by the flow of molten steel. This prevents the slide block from deforming or breaking under high temperature and stress conditions, thus improving the service life and reliability of the slide block.

[0027] The reinforcing layer 7 is made of corundum composite material. Corundum has high hardness, high strength and good corrosion resistance. It is located on the side close to the molten steel. When the molten steel passes through the through hole 10, the reinforcing layer 7 prevents the internal materials of the slide plate from wearing out and being damaged too quickly. The reinforcing layer 8 is made of ceramic fiber reinforced material. It is located on the other side of the lower slide plate brick 2 and the upper slide plate brick 4, providing additional structural strength. The ceramic fiber reinforced material has good mechanical properties and a certain degree of thermal insulation. When the lower slide plate brick 2 and the upper slide plate brick 4 are subjected to external forces during installation and use, the reinforcing layer 8 can enhance the overall strength of the slide plate and prevent the structure of the lower slide plate brick 2 and the upper slide plate brick 4 from being damaged by external forces. At the same time, it also helps to reduce the heat transfer from the molten steel side to other parts of the slide plate, playing a role in heat insulation and protection.

[0028] Reference Figure 2-4 As shown, an auxiliary mechanism is provided on one side of the skateboard frame 3. The auxiliary mechanism includes a fixed frame 12 fixedly installed on one side of the skateboard frame 3. A hydraulic cylinder 13 is fixedly installed inside the fixed frame 12. The output end of the hydraulic cylinder 13 is connected to the surface of the upper skateboard brick 4. Two guide grooves 14 are opened on the surface of the base frame 1. T-shaped guide blocks 15 are slidably installed inside the two guide grooves 14. Nickel-based alloy strips 16 are embedded in the surface of the T-shaped guide blocks 15. When the hydraulic cylinder 13 is started, the hydraulic cylinder 13 begins to work, and its output end pushes the upper skateboard brick 4 to move. During the movement, the T-shaped guide blocks 15 slide along the guide grooves 14, ensuring that the upper skateboard brick 4... The precision and stability of the movement are enhanced by the embedding of the nickel-based alloy strip 16, which improves the wear resistance of the T-shaped guide block 15 and prevents excessive wear of the T-shaped guide block 15 during repeated sliding. This ensures that the precise movement trajectory can be maintained during multiple opening and closing operations, guaranteeing the accurate opening and closing of the molten steel channel. Under the push of the hydraulic cylinder 13, the upper sliding plate brick 4 begins to generate relative displacement with the lower sliding plate brick 2. As the upper sliding plate brick 4 moves, the through holes 10 on the upper sliding plate brick 4 and the lower sliding plate brick 2 gradually align. When the through holes 10 are fully aligned, the molten steel begins to flow from the ladle into the casting ring 11 through the through holes 10, and then flows out of the ladle through the casting ring 11 to enter the subsequent casting process.

[0029] The flow rate and velocity of molten steel can be adjusted by controlling the stroke and movement speed of the hydraulic cylinder 13 to regulate the relative position of the upper sliding plate brick 4 and the lower sliding plate brick 2, thereby controlling the opening size of the through hole 10 and realizing the control of the molten steel flow rate. When the steel output reaches the required amount, the hydraulic cylinder 13 works again to push the upper sliding plate brick 4 back to the initial position, so that the through hole 10 on the upper sliding plate brick 4 and the lower sliding plate brick 2 are repositioned, closing the molten steel channel and stopping the outflow of molten steel.

[0030] Reference Figure 5As shown, both the base frame 1 and the slide frame 3 are made of aluminum-carbon refractory material. A protective layer 17, made of silicon carbide, is provided on the surface of both the base frame 1 and the slide frame 3. This allows for precise control of the molten steel flow and its on / off state. The guide groove of the base frame cooperates with the T-shaped guide block to provide stable guidance for the movement of the upper slide block, ensuring its movement accuracy and greatly enhancing wear resistance. This ensures the reliability of the guide structure during repeated use and maintains stable operation of the slide. The graphite coating 9 is applied to one side of the reinforcing layers 7 and 8, possessing good lubrication and high-temperature resistance. On one hand, it can lubricate the layers within the lower slide block 2 and upper slide block 4, reducing interlayer friction and preventing structural damage caused by interlayer friction. On the other hand, it can withstand high temperatures, protecting the internal reinforcing layers 7 and 8 from direct exposure at high temperatures, thus preventing accelerated oxidation or damage.

[0031] Both the base frame 1 and the skateboard frame 3 are made of aluminum-carbon refractory material, providing basic fire resistance and structural foundation. The protective layer 17 on its surface is made of silicon carbide, which has high hardness, high wear resistance and good oxidation resistance. The protective layer 17 can protect the base frame 1 and the skateboard frame 3 from the influence of the external environment.

[0032] Working principle of this utility model:

[0033] This utility model is a ladle slide plate with an auxiliary composite reinforcement structure. When the device is in use, the ladle slide plate is in the closed state, and the through holes 10 on the upper slide plate brick 4 and the lower slide plate brick 2 are not aligned to prevent molten steel from flowing out. The base frame 1 supports the lower slide plate brick 2. The T-shaped guide block 15 is in the guide groove 14 to provide guidance for the movement of the slide plate. The nickel-based alloy strip 16 enhances the wear resistance and strength of the T-shaped guide block 15 and ensures the reliability of the guide structure.

[0034] When steel tapping is required, hydraulic cylinder 13 is activated. Hydraulic cylinder 13 starts working, and its output end pushes the upper slide block 4 to move. During the movement, T-shaped guide block 15 slides along guide groove 14, ensuring the accuracy and stability of the movement of upper slide block 4. The embedding of nickel-based alloy strip 16 enhances the wear resistance of T-shaped guide block 15, preventing excessive wear of T-shaped guide block 15 during repeated sliding, ensuring that the precise movement trajectory can be maintained in multiple opening and closing operations, and ensuring the accurate opening and closing of the molten steel channel. Under the push of hydraulic cylinder 13, upper slide block 4 begins to generate relative displacement with lower slide block 2. As upper slide block 4 moves, the through holes 10 on upper slide block 4 and lower slide block 2 gradually align. When the through holes 10 are fully aligned, molten steel begins to flow from the ladle into the casting ring 11 through the through holes 10, and flows out of the ladle through the casting ring 11 to enter the subsequent casting process.

[0035] The flow rate and velocity of molten steel can be adjusted by controlling the stroke and movement speed of the hydraulic cylinder 13 to regulate the relative position of the upper sliding plate brick 4 and the lower sliding plate brick 2, thereby controlling the opening size of the through hole 10 and realizing the control of the molten steel flow rate. When the steel output reaches the required amount, the hydraulic cylinder 13 works again to push the upper sliding plate brick 4 back to the initial position, so that the through hole 10 on the upper sliding plate brick 4 and the lower sliding plate brick 2 are repositioned, closing the molten steel channel and stopping the outflow of molten steel.

[0036] During the use of the lower sliding plate brick 2 and the upper sliding plate brick 4, they are subjected to the high temperature of molten steel, which generates a temperature gradient and thermal stress inside. The horizontal reinforcing ribs 5 and the vertical reinforcing ribs 6 are distributed in a grid pattern inside the lower sliding plate brick 2 and the upper sliding plate brick 4. They intertwine to form a strong support network. Under high temperature, when thermal stress is generated inside the lower sliding plate brick 2 and the upper sliding plate brick 4, the horizontal reinforcing ribs 5 and the vertical reinforcing ribs 6 can share these stresses, limit the deformation and crack propagation caused by thermal stress, and enhance the structural strength of the upper sliding plate brick 4 and the lower sliding plate brick 2 from multiple directions. This enables them to withstand the thermal shock of molten steel and the mechanical force generated by the flow of molten steel, preventing the sliding plate from deforming or breaking under high temperature and stress conditions, and improving the service life and reliability of the sliding plate.

[0037] The reinforcing layer 7 is made of corundum composite material. Corundum has high hardness, high strength and good corrosion resistance. It is located on the side close to the molten steel. When the molten steel passes through the through hole 10, the reinforcing layer 7 prevents the internal materials of the slide plate from being worn and damaged too quickly. The reinforcing layer 8 is made of ceramic fiber reinforced material. It is located on the other side of the lower slide plate brick 2 and the upper slide plate brick 4, providing additional structural strength. The ceramic fiber reinforced material has good mechanical properties and a certain degree of thermal insulation. When the lower slide plate brick 2 and the upper slide plate brick 4 are subjected to external forces during installation and use, the reinforcing layer 8 can enhance the overall strength of the slide plate and prevent the structural damage of the lower slide plate brick 2 and the upper slide plate brick 4 caused by external forces. At the same time, it also helps to reduce the heat transfer from the molten steel side to other parts of the slide plate, playing a role in heat insulation and protection.

[0038] The graphite coating 9 is applied to one side of the reinforcing layer 7 and the strengthening layer 8. It has good lubrication and high temperature resistance. On the one hand, it can lubricate the layers inside the lower sliding block 2 and the upper sliding block 4, reduce interlayer friction, and prevent structural damage caused by interlayer friction. On the other hand, it can withstand high temperature and protect the internal reinforcing layer 7 and the strengthening layer 8 from direct exposure at high temperature, which would accelerate oxidation or damage.

[0039] Both the base frame 1 and the skateboard frame 3 are made of aluminum-carbon refractory material, providing basic fire resistance and structural foundation. The protective layer 17 on its surface is made of silicon carbide, which has high hardness, high wear resistance and good oxidation resistance. The protective layer 17 can protect the base frame 1 and the skateboard frame 3 from the influence of the external environment.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A steel ladle slide plate with an auxiliary composite reinforcement structure, comprising a base frame (1), characterized in that: The base frame (1) has a lower sliding plate brick (2) embedded in its surface. A sliding plate sleeve (3) is hinged to one side of the base frame (1). An upper sliding plate brick (4) is provided inside the sliding plate sleeve (3). Both the lower sliding plate brick (2) and the upper sliding plate brick (4) have reinforcing mechanisms inside. The reinforcing mechanism includes multiple horizontal reinforcing ribs (5) fixedly disposed inside the lower sliding plate brick (2) and the upper sliding plate brick (4), and vertical reinforcing ribs (6) fixedly disposed on one side of each of the multiple horizontal reinforcing ribs (5). The horizontal reinforcing ribs (5) and vertical reinforcing ribs (6) are distributed in a grid pattern. A reinforcing layer (7) is fixedly disposed on one side of the lower sliding plate brick (2) and the upper sliding plate brick (4), and an enhancement layer (8) is fixedly disposed on the other side of the lower sliding plate brick (2) and the upper sliding plate brick (4). A graphite coating (9) is fixedly disposed on one side of both the enhancement layer (7) and the enhancement layer (8).

2. The steel ladle slide plate with auxiliary composite reinforcement structure according to claim 1, characterized in that: The reinforcing layer (7) is made of corundum composite material, and the reinforcing layer (8) is made of ceramic fiber reinforced material.

3. The steel ladle slide plate with auxiliary composite reinforcement structure according to claim 1, characterized in that: Both the lower sliding plate brick (2) and the upper sliding plate brick (4) have through holes (10) on their surfaces, and a casting ring (11) is fixedly installed inside the through hole (10).

4. The steel ladle slide plate with auxiliary composite reinforcement structure according to claim 1, characterized in that: An auxiliary mechanism is provided on one side of the skateboard frame (3). The auxiliary mechanism includes a fixed frame (12) fixedly installed on one side of the skateboard frame (3). A hydraulic cylinder (13) is fixedly installed inside the fixed frame (12). The output end of the hydraulic cylinder (13) is connected to the surface of the upper skateboard brick (4).

5. The steel ladle slide plate with auxiliary composite reinforcement structure according to claim 1, characterized in that: Two guide grooves (14) are opened on the surface of the base frame (1), and T-shaped guide blocks (15) are slidably arranged inside the two guide grooves (14). Nickel-based alloy strips (16) are embedded in the surface of the T-shaped guide blocks (15).

6. The steel ladle slide plate with auxiliary composite reinforcement structure according to claim 1, characterized in that: The base frame (1) and the skateboard frame (3) are both made of aluminum-carbon refractory material. The surfaces of the base frame (1) and the skateboard frame (3) are provided with a protective layer (17) made of silicon carbide.

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