Long life tundish stabilizer

Abstract

The utility model discloses a long -life tundish current stabilizer relates to molten steel current stabilizer field, this long -life tundish current stabilizer, including current stabilizer main part, and the front surface of current stabilizer main part is open -mouthed formula structure, and is assembled with the front door of sealing in its open -mouthed place, and the upper end of front door of sealing is centrally provided with the liquid outlet, and the inboard lower end of front door of sealing is equipped with the symmetric buffer block, and the bottom of current stabilizer main part is provided with the right angle gap for buffer block to fit, and the rest parts of buffer block are arc structure, and the opposite side of current stabilizer main part in and front door of sealing is provided with the deceleration module, and the inboard upper end of front door of sealing is installed with the flow baffle. The impact plate of corundum refractory material integratedly built that current stabilizer main part in bottom surface lays can bear the direct impact of molten steel, protects current stabilizer main part bottom not to be eroded and washed by molten steel, prolongs current stabilizer service life, and the cooperation design of positioning column and the inlay groove is convenient for the installation and positioning of impact plate, guarantees the stability of its protection effect.

Description

Technical Field

[0001] This utility model belongs to the technical field of molten steel flow stabilizers, specifically, it relates to a long-life tundish flow stabilizer. Background Technology

[0002] The tundish flow stabilizer is installed at the bottom of the impact zone of the tundish to stabilize the flow of molten steel injected from the ladle, reduce the impact of turbulent flow, stabilize the molten steel flow field within the tundish, and help inclusions float to the surface, preventing slag from being drawn into the molten steel and causing internal quality defects in the continuously cast billet. With the increasing size of steel ladles in steel plants and the prevalence of long-term continuous production, existing flow stabilizers increasingly require longer service lives to avoid unplanned downtime caused by stabilizer failure during production.

[0003] Chinese utility model patent CN216461719U discloses a long-life tundish flow stabilizer. Through a buffer structure, the flow stabilizer is reduced in impact when molten steel washes over it, thus minimizing scouring and extending its lifespan. This makes the equipment more efficient. Furthermore, a speed reduction plate further slows the flow of molten steel within the stabilizer, reducing its kinetic energy and enhancing safety during operation.

[0004] However, considering that molten steel will generate turbulence when poured into the flow stabilizer, the movement of molten steel particles in the turbulence is chaotic and splashing is easy, which will increase the loss of molten steel. At the same time, the potential energy brought by the turbulent molten steel will reduce the service life of the flow stabilizer or bring safety hazards. Therefore, this utility model is proposed. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a long-life intermediate tumbler current stabilizer that can overcome or at least partially solve the above problems.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows: A long-life tundish flow stabilizer includes a flow stabilizer body. The front surface of the flow stabilizer body has an open structure, and a front sealing door is assembled at the open. The upper end of the front sealing door has a liquid outlet in the center, and the lower inner side of the front sealing door has symmetrical buffer blocks. The bottom of the flow stabilizer body has a right-angle notch for the buffer blocks to fit into, and the rest of the buffer blocks have an arc-shaped structure. A deceleration module is provided on the side of the flow stabilizer body opposite to the front sealing door, and a flow baffle is installed on the upper inner side of the front sealing door.

[0007] Furthermore, the bottom surface of the main body of the flow stabilizer is covered with a bearing plate, which is integrally constructed of corundum refractory material, and the lower surface of the bearing plate is attached to the bottom of the main body of the flow stabilizer and the upper surface of the buffer block.

[0008] Furthermore, the bottom of the main body of the flow stabilizer and the upper surface of the buffer block are provided with equidistant fitting grooves, and the lower surface of the impact plate is provided with positioning posts. When the impact plate is assembled with the main body of the flow stabilizer, its positioning posts are inserted into the fitting grooves.

[0009] Furthermore, the deceleration module includes a deceleration plate, which is also integrally constructed using corundum refractory material, and the height of the deceleration plate is greater than that of the flow deflector.

[0010] Furthermore, the deceleration module includes a deceleration plate and a prism plate, and the prism plate is fixedly connected to the front surface of the deceleration plate at a 15° angle, and the two adjacent deceleration plates overlap head to tail.

[0011] Furthermore, the baffle is a cantilever structure, and the baffle as a whole is arc-shaped, with an acute angle between the baffle and the front sealing door.

[0012] Furthermore, a liner is provided at the edge of the upper surface of the flow stabilizer body, and symmetrical hanging rings are provided on the liner. Overflow holes are symmetrically opened on both sides of the flow stabilizer body, and the opening position of the overflow holes is on the same horizontal line as the upper end of the liquid outlet.

[0013] Furthermore, screw holes are provided on the front surface of the main body of the flow stabilizer and on both sides of the front sealing door. When the front sealing door is assembled with the front surface of the main body of the flow stabilizer, bolts are installed in the screw holes for fixing.

[0014] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art: (1) The buffer block symmetrically arranged on the lower inner side of the front sealing door and its right-angle notch matching the bottom of the main body of the stabilizer, and the rest of the buffer block has an arc structure, which can buffer the molten steel, change the initial flow direction of the molten steel entering the stabilizer, and make it enter the stabilizer more smoothly, avoid the molten steel directly impacting the inner wall of the stabilizer, reduce turbulence, optimize the flow state of the molten steel, and the impact plate built by the corundum refractory material laid on the inner bottom surface of the stabilizer body can withstand the direct impact of the molten steel, protect the bottom of the stabilizer body from being corroded and eroded by the molten steel, and extend the service life of the stabilizer. The matching design of the positioning column and the fitting groove facilitates the installation and positioning of the impact plate and ensures the stability of its protective effect.

[0015] (2) The deceleration module in this utility model, especially the deceleration plate being taller than the baffle plate, can effectively reduce the flow speed of molten steel, making the flow of molten steel more stable in the stabilizer, which is conducive to the removal of inclusions in the molten steel and improves the quality of molten steel. The prism plate is fixedly connected to the front surface of the deceleration plate at a certain angle, and the upper and lower adjacent deceleration plates overlap head to tail, further disrupting the flow path of molten steel, increasing the residence time of molten steel in the stabilizer, and making the flow of molten steel more uniform. Furthermore, the baffle plate is a cantilevered arc structure with an acute angle to the front sealing door, which can guide the molten steel and control the speed of molten steel outflow, making the molten steel flow more smoothly from the outlet.

[0016] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0017] In the attached diagram: Figure 1 This is a schematic diagram of the overall structure of the current stabilizer in the intermediate tumbler of this utility model; Figure 2 This is a schematic diagram of the disassembled structure of the current stabilizer in the intermediate treasury of this utility model. Figure 1 ; Figure 3 This is a schematic diagram of the disassembled structure of the current stabilizer in the intermediate treasury of this utility model. Figure 2 ; Figure 4 This is a cross-sectional view of the current stabilizer in the intermediate tundish of this utility model; Figure 5 This is a schematic diagram of the impact plate structure of this utility model.

[0018] In the diagram: 100, main body of the flow stabilizer; 101, front sealing door; 1011, liquid outlet; 1012, bolt; 1013, flow baffle; 1014, buffer block; 102, overflow hole; 103, lining; 1031, lifting ring; 104, speed reduction plate; 1041, rib plate; 105, impact plate; 1051, positioning post. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0020] See Figure 1 This is a schematic diagram of the flow stabilizer structure in this embodiment. The long-life tundish flow stabilizer in this embodiment is mainly composed of the flow stabilizer body 100. The flow stabilizer body 100 occupies a core position in the whole device and is the basic carrier for realizing various functions of stable steel flow.

[0021] See Figure 2 and Figure 3 This is a schematic diagram of the disassembled structure of the stabilizer in this embodiment. A lining 103 is provided on the upper edge of the stabilizer body 100. The lining 103 not only protects and reinforces the edge of the stabilizer body 100, but also features symmetrically arranged lifting rings 1031. The lifting rings 1031 are manufactured according to specific engineering design standards and have sufficient load-bearing capacity to allow for safe and convenient lifting of the stabilizer using external lifting equipment during installation, maintenance, or transportation. The front surface of the stabilizer body 100 adopts an open structure design, with a front sealing door 101 assembled at this opening. This combination of the open design and the front sealing door 101 facilitates inspection and maintenance of the interior of the stabilizer body 100 when necessary. Screw holes are precisely drilled on both sides of the front surface of the front sealing door 101 and the stabilizer body 100. During assembly, bolts 1012 conforming to the corresponding mechanical standards are screwed into these screw holes to secure the front sealing door. The firm fixation of 101 to the front surface of the stabilizer body 100 ensures that the two will not shift or loosen due to force during the flow of molten steel, thus guaranteeing the stability and sealing of the device. Furthermore, an outlet 1011 is precisely opened at the center of the upper end of the front sealing door 101. The size, shape, and position of this outlet 1011 are scientifically planned according to the molten steel flow rate, flow velocity, and subsequent process requirements to ensure that the molten steel can flow out of the stabilizer according to the predetermined path and speed. At the same time, overflow holes 102 are symmetrically opened on both sides of the stabilizer body 100. The opening position of the overflow holes 102 has been strictly calculated so that it is on the same horizontal line as the upper end of the outlet 1011. The purpose of this design is that when the molten steel flow rate or flow velocity fluctuates abnormally, excess molten steel can overflow through the overflow holes 102, thereby maintaining the relative stability of the molten steel level inside the stabilizer and avoiding safety hazards or affecting the stable treatment effect of molten steel due to excessive liquid level.

[0022] Continue reading Figure 2 and Figure 3 In this embodiment, buffer blocks 1014 are symmetrically arranged on the lower inner side of the front sealing door 101. The buffer blocks 1014 are made of special materials and have a special shape design, with the rest of their parts having an arc-shaped structure. This effectively disperses the impact force generated when molten steel is injected, reducing impact damage to the internal structure of the flow stabilizer. At the same time, a right-angle notch is provided at the bottom of the flow stabilizer body 100 corresponding to the position of the buffer blocks 1014 for them to fit together. This precise fitting design not only ensures the accuracy and stability of the installation of the buffer blocks 1014, but also allows the buffer blocks 1014 to better cooperate with the flow stabilizer body 100 during operation, achieving effective buffering of the impact force of molten steel. See Figure 4This is a cross-sectional view of the flow stabilizer in this embodiment. A deceleration module is installed on the side of the flow stabilizer body 100 opposite to the front sealing door 101. The deceleration module plays a crucial role in the stable flow of molten steel inside the flow stabilizer. It mainly consists of a deceleration plate 104 and a prism plate 1041. The deceleration plate 104 is also integrally constructed using corundum refractory material. Corundum refractory material possesses excellent properties such as high temperature resistance and corrosion resistance, enabling it to work stably for extended periods in high-temperature molten steel environments. The height of the deceleration plate 104 is precisely calculated to be greater than the height of the flow deflector 1013. The prism plate 1041 is fixedly connected to the front surface of the deceleration plate 104 at a 15° angle, with adjacent deceleration plates 104 overlapping end-to-end. This unique structural design ensures that the high-temperature molten steel poured from the ladle, after entering the flow stabilizer, first passes through the deceleration module. As the molten steel flows through the deceleration plate 104 and the prism plate 1041, due to… Its unique shape and arrangement effectively reduce the flow velocity of molten steel, thus creating favorable conditions for the subsequent stable treatment of molten steel within the stabilizer. A baffle plate 1013 is installed on the upper inner side of the front sealing door 101. To better guide the turbulent flow of the molten steel, the baffle plate 1013 is designed as a cantilever structure with an overall arc shape, forming an acute angle with the front sealing door 101. When the molten steel flows inside the stabilizer, the impact force of the steel creates turbulence. As the turbulence rolls upward, it encounters the baffle plate 1013. The unique arc shape and cantilever structure of the baffle plate 1013 effectively guide the turbulence, causing it to form waves that flow towards the center of the stabilizer body 100, thereby counteracting the potential energy of the newly injected molten steel and further reducing the impact force of the molten steel. This ensures that the molten steel flows smoothly within the stabilizer, preventing damage to the internal structure of the stabilizer or affecting the quality of the molten steel due to excessive turbulence. Figure 5 As shown, in this embodiment, a bearing plate 105 is laid on the bottom inner surface of the stabilizer body 100. The bearing plate 105 is also integrally constructed of corundum refractory material. The selection of corundum refractory material enables it to withstand the direct impact of high-temperature molten steel, and it has good wear resistance and high-temperature resistance. The lower surface of the bearing plate 105 is attached to the bottom of the stabilizer body 100 and the upper surface of the buffer block 1014. Equally spaced fitting grooves are provided on the bottom of the stabilizer body 100 and the upper surface of the buffer block 1014. A positioning post 1051 is provided on the lower surface of the bearing plate 105. When the bearing plate 105 is assembled with the stabilizer body 100, its positioning post 1051 precisely engages with the fitting groove. This design ensures the accuracy and stability of the bearing plate 105 installation, allowing it to be firmly fixed to the bottom inner surface of the stabilizer body 100 during the impact of molten steel, effectively dispersing and bearing the impact force of the molten steel, and extending the service life of the stabilizer. Combination Figure 1-5In accordance with the aforementioned technical solution, in the actual working process of this embodiment, the molten steel poured from the ladle is first decelerated by a deceleration module. The deceleration plate 104 and the prism plate 1041 in the deceleration module, through their special structure and arrangement, reduce the flow velocity of the molten steel. The decelerated molten steel flows into the flow stabilizer body 100. Because the flow stabilizer body 100 has an arc-shaped structure, it effectively prevents molten steel from splashing, ensuring stable flow of the molten steel within the flow stabilizer body 100. During the flow of the molten steel, the impact force of the molten steel creates turbulence, which then flows towards... During the upward tumbling process, guided by the flow deflector 1013, the resulting spray flows towards the center of the stabilizer body 100, counteracting the potential energy of the newly injected molten steel and further reducing the impact force of the molten steel. In this process, the impact plate 105 disperses and bears the impact force of the molten steel, while the buffer block 1014 helps to reduce the impact of the molten steel on the bottom of the stabilizer, thereby ensuring that the entire stabilizer can operate stably in the high temperature and high pressure molten steel environment, achieving effective and stable treatment of molten steel, and providing high-quality molten steel for subsequent steelmaking processes.

[0023] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model.

Claims

1. A long-life intermediate current stabilizer, comprising a current stabilizer body (100), characterized in that: The front surface of the main body (100) of the flow stabilizer is an open structure, and a front sealing door (101) is assembled at the open. The upper end of the front sealing door (101) is provided with a liquid outlet (1011) in the center, and the lower inner side of the front sealing door (101) is provided with a symmetrical buffer block (1014). The bottom of the main body (100) of the flow stabilizer is provided with a right-angle notch for the buffer block (1014) to fit, and the rest of the buffer block (1014) is an arc-shaped structure. A deceleration module is provided on the side of the main body (100) opposite to the front sealing door (101), and a flow baffle (1013) is installed on the upper inner side of the front sealing door (101).

2. The long campaign tundish flow stabilizer of claim 1, wherein: The bottom surface of the main body (100) of the flow stabilizer is covered with a bearing plate (105), and the bearing plate (105) is integrally constructed of corundum refractory material. The lower surface of the bearing plate (105) is attached to the bottom of the main body (100) of the flow stabilizer and the upper surface of the buffer block (1014).

3. The long-life intermediate current stabilizer according to claim 2, characterized in that: The bottom of the main body (100) of the flow stabilizer and the upper surface of the buffer block (1014) are provided with fitting grooves at equal intervals, and the lower surface of the impact plate (105) is provided with a positioning post (1051). When the impact plate (105) is assembled with the main body (100) of the flow stabilizer, its positioning post (1051) is inserted into the fitting groove.

4. The long campaign tundish flow stabilizer of claim 1 wherein: The deceleration module includes a deceleration plate (104), which is also integrally constructed using corundum refractory material. The height of the deceleration plate (104) is greater than that of the flow baffle plate (1013).

5. The long campaign tundish flow stabilizer of claim 1 wherein: The deceleration module includes a deceleration plate (104) and a prism plate (1041), and the prism plate (1041) is fixedly connected to the front surface of the deceleration plate (104) at a 15° angle, and the two adjacent deceleration plates (104) overlap head to tail.

6. The long campaign tundish flow stabilizer of claim 1 wherein: The baffle plate (1013) is a cantilever structure, and the baffle plate (1013) is arc-shaped as a whole. The angle between the baffle plate (1013) and the front sealing door (101) is an acute angle.

7. The long-life intermediate current stabilizer according to claim 1, characterized in that: The upper surface edge of the flow stabilizer body (100) is provided with a lining (103), and the lining (103) is symmetrically provided with a hanging ring (1031). The two sides of the flow stabilizer body (100) are symmetrically provided with overflow holes (102), and the opening position of the overflow holes (102) is on the same horizontal line as the upper end position of the liquid outlet (1011).

8. The long campaign tundish flow stabilizer of claim 1 wherein: The front surface of the main body (100) of the flow stabilizer and both sides of the front sealing door (101) are provided with screw holes. When the front sealing door (101) is assembled with the front surface of the main body (100) of the flow stabilizer, the screw holes are fixed with bolts (1012).

Images