Novel seating brick structure for steel ladle pouring
By designing a new seat brick that divides the water inlet into two parts, the problems of stability and resource waste of traditional seat bricks during use are solved, the replacement efficiency and cost are reduced, and the continuity of steelmaking production is ensured.
Patent Information
- Application Number
- CN202422804505.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-11-18
AI Technical Summary
During the use of the traditional base bricks, the top of the water inlet is far away from the top of the base bricks, causing the bell mouth position to gradually become larger, affecting stability and requiring a large amount of drainage sand. In addition, the base bricks need to be replaced as a whole before the life of the ladle is up, resulting in waste of resources and discontinuous steelmaking production.
A new type of seat brick structure is designed, which divides the water inlet into two parts, the first water inlet and the second water inlet. Only the damaged part of the water inlet needs to be replaced without replacing the seat brick body. The pouring mouth is designed as a bell mouth to reduce wear and maintain stability, forming a connected molten steel channel.
It improves replacement efficiency, reduces resource waste and costs, ensures the continuity of steelmaking production, and reduces the demand for drainage sand and the frequency of replacement.
Smart Images
Figure CN223418342U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steelmaking, in particular to a novel seat brick structure for ladle pouring. Background Art
[0002] Seat bricks are refractory bricks built into the bottom of the ladle to secure the sliding mechanism. They secure the ladle's sliding nozzle mechanism, facilitate nozzle removal and installation, support the lower end of the stopper during pouring, and ensure the stopper slides along the curved surface toward the nozzle, shutting off the inflow. Improvement Objective: Ladle seat bricks are a crucial refractory material in steelmaking. Their quality significantly impacts the ladle's thermal repair and lifespan. Traditional seat brick designs experience a gradual widening of the upper bellmouth as molten steel erodes and erodes the structure, reducing the stability of the mechanism and increasing the demand for drainage sand, which can increase by approximately 40% in later stages, resulting in significant waste. Seat bricks typically need to be replaced after 60 to 80 furnaces, but this is before the end of the ladle's lifespan, which typically lasts about 110 to 140 furnaces. Therefore, the ladle must be cleaned and the seat bricks removed, replaced with new ones, and baked before use, disrupting the steelmaking process. Summary of the Invention
[0003] In order to solve the above technical defects, the purpose of the present utility model is to provide a new seat brick structure for ladle casting, which only requires replacing the water inlet without replacing the seat brick body, reducing the steps of replacing the seat bricks and baking them for reuse, improving the replacement efficiency, and ensuring the continuous progress of steelmaking production.
[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a new type of seat brick structure for ladle pouring, including a seat brick, an upper slide, a lower slide and a water outlet from top to bottom, the inner side of the seat brick is respectively provided with a pouring port, a detachable first upper water outlet and a second upper water outlet from top to bottom, the top of the first upper water outlet is 4-6 cm away from the top of the seat brick, and the first upper water outlet is fixedly connected to the second upper water outlet, the upper slide, the lower slide and the water outlet in sequence; the pouring port, the inner cavity of the first upper water outlet, the inner cavity of the second upper water outlet, the inner cavity of the upper slide, the inner cavity of the lower slide and the inner cavity of the water outlet are in a connected state, forming a molten steel channel during pouring.
[0005] Furthermore, the top of the water inlet is 5 cm away from the top of the seat brick.
[0006] The pouring port is a bell mouth.
[0007] This new design offers significant advantages over traditional block-type structures. Traditionally, because the top of the water inlet is far from the top of the block, the block's upper trumpet pouring port gradually widens as it is eroded and eroded by molten steel, significantly impacting the stability of the entire block and requiring the use of large quantities of drainage sand, resulting in a waste of resources. Furthermore, when replacing the block before the ladle reaches its end of life, the entire block must be removed and replaced with a new one, baked, and then put back into use, disrupting continuous steelmaking production.
[0008] In the present invention, the combination of the water inlet and the seat brick is changed. When disassembling, there is no need to take the seat brick off the line to replace it. Only the water inlet needs to be disassembled, and the seat brick body does not need to be replaced. Therefore, there is no need to perform disassembly, installation, baking and other steps. In addition, the top of the first water inlet is allowed to penetrate into a position 5 cm away from the top of the seat brick, which can reduce the wear from the seat brick trumpet pouring port to the first water inlet. The remaining parts remain intact, safe and stable, and the demand for drainage sand will not increase, thereby reducing costs and increasing economic benefits.
[0009] In addition, the water inlet in the traditional method is large in size. If it is damaged and cannot be used, it needs to be completely replaced. The water inlet in the present invention is composed of a first water inlet and a second water inlet, that is, the water inlet is divided into two parts. In actual use, when one of the water inlets is damaged, only the water inlet needs to be replaced, and the other water inlet continues to be used. The purpose of this is to reduce resource waste and effectively reduce replacement costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] The technology and features of the present invention are further described below in conjunction with the accompanying drawings and embodiments.
[0011] Figure 1 It is a structural diagram of the present utility model.
[0012] Attachment Figure 1 In the figure, 1. base brick, 2. first water inlet, 3. molten steel channel, 4. upper slide, 5. lower slide, 6. water outlet, 7. pouring port, 8. second water inlet. DETAILED DESCRIPTION
[0013] See attached Figure 1It is an embodiment of the present utility model, which discloses a new type of seat brick structure for ladle pouring, including a seat brick 1, an upper slide 4, a lower slide 5 and a drain 6 from top to bottom, the inner side of the seat brick 1 is respectively provided with a pouring port 7 and a detachable first upper water port 2 and a second upper water port 8, the pouring port 7 is a bell mouth, which is convenient for pouring, the top of the first upper water port 2 is 5 cm away from the top of the seat brick 1, and the first upper water port 2 is fixedly connected to the second upper water port 8, the upper slide 4, the lower slide 5 and the drain 6 in sequence; the pouring port 7, the inner cavity of the first upper water port 2, the inner cavity of the second upper water port 8, the inner cavity of the upper slide 4, the inner cavity of the lower slide 5 and the inner cavity of the drain 6 are in a connected state, forming a molten steel channel 3 during pouring.
[0014] In the present invention, the combination of the water inlet and the seat brick is changed. When disassembling, there is no need to replace the seat brick offline. Only the water inlet needs to be disassembled, and the seat brick body does not need to be replaced. Therefore, there is no need to perform disassembly, installation, baking and other steps. In addition, the top of the water inlet is allowed to penetrate to a position 5 cm away from the top of the seat brick, which can reduce the wear from the seat brick trumpet pouring port to the water inlet. The rest of the parts remain intact, safe and stable, and the demand for drainage sand will not increase, thereby reducing costs and increasing economic benefits.
Claims
1. A new type of base brick structure for ladle casting, characterized by: It includes a seat brick, an upper slide, a lower slide and a water outlet from top to bottom, and the inner side of the seat brick is respectively provided with a pouring port, a detachable first water outlet and a second water outlet from top to bottom. The top of the first water outlet is 4-6 cm away from the top of the seat brick, and the first water outlet is fixedly connected to the second water outlet, the upper slide, the lower slide and the water outlet in sequence; the pouring port, the inner cavity of the first water outlet, the inner cavity of the second water outlet, the inner cavity of the upper slide, the inner cavity of the lower slide and the inner cavity of the water outlet are in a connected state, forming a molten steel channel during pouring.
2. The novel base brick structure for ladle casting according to claim 1 is characterized in that: The top of the first water inlet is 5 cm away from the top of the seat brick.
3. The novel base brick structure for ladle casting according to claim 1 is characterized in that: The pouring port is a bell mouth.