Pouring steel brick convenient to build
By designing a connection method with male and female joints and fixing blocks on the cast steel bricks, and combining it with a high-temperature resistant coating, the problems of unstable connection and simple structure of traditional cast steel bricks are solved, achieving higher stability and service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-03-06
AI Technical Summary
Traditional steel-cast bricks have an unstable connection method and a simple internal structure, making them difficult to maintain stability under high temperature environments and mechanical forces, and they are prone to loosening, falling off and cracking.
The design employs cast steel bricks with male and female joints, combined with fixing blocks and a skeleton structure, to enhance connection stability; the internal coating components include a cermet coating, a zirconium oxide coating, and a pyrolytic carbon coating to improve corrosion resistance and thermal shock resistance.
It improves the stability and structural strength of steel-cast brick masonry, prevents loosening, falling off and cracking, extends service life, and enhances resistance to molten steel and slag.
Smart Images
Figure CN223976459U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metallurgy, and in particular to a cast steel brick that is easy to construct. Background Technology
[0002] In the steelmaking process, the steel casting stage is crucial. As a key refractory material in the steel casting process, the performance and installation method of steel casting bricks directly affect the stability and efficiency of the steel casting operation. Due to the extremely high temperature of molten steel and the complex physical and chemical reactions that occur during casting, stringent requirements are placed on the stability of the steel casting bricks, their structural strength, and their resistance to corrosion.
[0003] Traditionally, cast steel bricks are mostly laid using a simple stacking method, where one brick is placed directly on top of another, relying on the weight of the bricks themselves to maintain their relative positions. Some are laid solely through planar contact between the bricks, using refractory mortar applied to the brick surfaces to increase adhesion. Cast steel bricks laid using this traditional method have a relatively simple internal structure, typically consisting of solid or hollow bricks made of a single material.
[0004] Since the connection method relies only on simple stacking or planar contact, the connection between the cast steel bricks is not stable enough under the mechanical external force generated during high temperature environment and molten steel casting. It is easy for displacement, loosening or even falling off. Moreover, the single internal structure makes it difficult for the cast steel bricks to withstand complex stress and they are prone to cracking and deformation. Therefore, a cast steel brick that is easy to build is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a cast steel brick that is easy to lay, aiming to improve the problem that traditional cast steel bricks in the prior art usually rely on simple stacking or only through planar contact between bricks for laying, resulting in an unstable connection method and a simple internal structure.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A castable steel brick that is easy to lay includes a castable steel brick body, a male joint fixedly connected to the side wall of the castable steel brick body, a female joint opened inside the castable steel brick body, a fixing component provided on the side wall of the castable steel brick body, and a coating component provided on the side wall of the castable steel brick body.
[0008] The fixing component includes a fixing block, the sidewall of which is fixedly connected to the sidewall of the steel-cast brick body. A fixing cavity is provided inside the steel-cast brick body. The fixing block is slidably connected inside the fixing cavity. The female end is slidably connected inside the female end. A skeleton is fixedly connected inside the steel-cast brick body.
[0009] As a further description of the above technical solution:
[0010] The coating assembly includes a metal-ceramic coating, which is fixedly connected to the interior of the cast steel brick body.
[0011] As a further description of the above technical solution:
[0012] A zirconia coating is fixedly connected to the sidewall of the metal-ceramic coating, and a pyrolytic carbon coating is fixedly connected to the sidewall of the zirconia coating.
[0013] As a further description of the above technical solution:
[0014] The metal-ceramic coating is made of ceramic particles such as titanium carbide and titanium nitride combined with a metal binder phase, and is used to resist the erosion and scouring of molten steel and slag.
[0015] As a further description of the above technical solution:
[0016] The zirconia coating is made of zirconia powder by thermal spraying and is used to prevent cracks from forming in the cast steel brick body due to temperature changes.
[0017] As a further description of the above technical solution:
[0018] The pyrolytic carbon coating is formed by the decomposition and deposition of hydrocarbons at high temperature, and is used to prevent direct contact between molten steel and slag and the cast steel brick body, thereby reducing erosion.
[0019] As a further description of the above technical solution:
[0020] The skeleton is made of high-temperature resistant ceramic fiber and is used to enhance the structural strength of the cast steel brick body.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, when the steel brick body is being laid, the side wall opening is slidably connected to the adjacent steel brick opening to complete the initial positioning. The fixing block is inserted into the fixing cavity of the adjacent steel brick to reinforce the connection. The internal skeleton enhances the structural strength under high temperature and mechanical external force, preventing the steel brick body from cracking and deforming. This solves the problem that traditional steel bricks are usually laid by simple stacking or only through planar contact between bricks, resulting in an unstable connection method and a simple internal structure. The above technical solution improves the stability and structural strength of steel brick masonry.
[0023] 2. In this utility model, the metal-ceramic coating inside the cast steel brick body has high hardness and corrosion resistance, and can resist the erosion and scouring of molten steel and slag. The zirconium oxide coating absorbs thermal stress and prevents the brick body from cracking. The outermost pyrolytic carbon coating has high chemical stability, forms a barrier layer to reduce erosion, and has a low coefficient of friction to facilitate the flow of molten steel. This solves the problem that traditional cast steel bricks are easily eroded by molten steel and slag and easily cracked under thermal shock during use, and improves the service life and stability of cast steel bricks. Attached Figure Description
[0024] Figure 1 This is a three-dimensional schematic diagram of a cast steel brick that is easy to construct according to this utility model.
[0025] Figure 2 A three-dimensional schematic diagram of the back of a cast steel brick that is easy to lay, as proposed in this utility model;
[0026] Figure 3 This is a schematic diagram of the internal structure of a cast steel brick that is easy to lay, as proposed in this utility model.
[0027] Figure 4 This is a schematic diagram of the brick structure of a cast steel brick that is easy to lay, as proposed in this utility model.
[0028] Legend:
[0029] 1. Cast steel brick body; 2. Female joint; 3. Female joint; 4. Fixing block; 5. Fixing cavity; 6. Skeleton; 7. Metal-ceramic coating; 8. Zirconia coating; 9. Pyrolytic carbon coating. Detailed Implementation
[0030] 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.
[0031] Reference Figure 1 - Figure 3The present invention provides an embodiment of a cast steel brick that is easy to construct, comprising a cast steel brick body 1, a male joint 2 fixedly connected to the side wall of the cast steel brick body 1, and a female joint 3 opened inside the cast steel brick body 1. The male joint 2 and the female joint 3 are used to achieve initial splicing and positioning. A fixing component is provided on the side wall of the cast steel brick body 1, and a coating component is provided on the side wall of the cast steel brick body 1. The fixing component includes a fixing block 4, the side wall of the fixing block 4 is fixedly connected to the side wall of the cast steel brick body 1, and a fixing cavity 5 is opened inside the cast steel brick body 1. The fixing block 4 is slidably connected inside the fixing cavity 5. The fixing block 4 and the fixing cavity 5 are used to further strengthen the connection. The male joint 2 is slidably connected inside the female joint 3. A skeleton 6 is fixedly connected inside the cast steel brick body 1. The skeleton 6 is made of high-temperature resistant ceramic fiber and is used to enhance the structural strength of the cast steel brick body 1.
[0032] During construction, the cast-in-place brick body 1 is slidably connected to the adjacent cast-in-place brick body 1 via the male joint 2 on the side wall. Both the male joint 2 and the female joint 3 are made of the same refractory material as the cast-in-place brick body 1. Like a jigsaw puzzle, this initial assembly and positioning allows construction workers to quickly and accurately combine multiple cast-in-place brick bodies 1, improving construction efficiency. Simultaneously, the fixing block 4 on the side wall, made of high-temperature resistant metal, is inserted into the fixing cavity 5 inside the adjacent cast-in-place brick body 1. The fixing cavity 5, also made of refractory material, further strengthens the connection, making the connection between the cast-in-place bricks more secure and preventing loosening or misalignment. The internal fixed skeleton 6 of the cast-in-place brick body 1 is made of high-temperature resistant ceramic fiber. When the cast-in-place brick is subjected to high temperatures and mechanical forces, it enhances its structural strength, improves its resistance to thermal shock and mechanical impact, effectively prevents the cast-in-place brick body 1 from cracking or deforming, and thus extends the service life of the cast-in-place brick.
[0033] Reference Figure 1 and Figure 4 The coating assembly includes a cermet coating 7, which is fixedly connected inside the steel-cast brick body 1. A zirconia coating 8 is fixedly connected to the side wall of the cermet coating 7, and a pyrolytic carbon coating 9 is fixedly connected to the side wall of the zirconia coating 8. The cermet coating 7 is made of ceramic particles such as titanium carbide and titanium nitride and a metal bonding phase, and is used to resist the erosion and scouring of molten steel and slag. The zirconia coating 8 is made of zirconia powder by thermal spraying and is used to prevent cracks from forming in the steel-cast brick body 1 due to temperature changes. The pyrolytic carbon coating 9 is formed by the decomposition and deposition of hydrocarbons at high temperature and is used to block the direct contact between molten steel and slag and the steel-cast brick body 1, reduce erosion, and allow molten steel to pass smoothly through the internal channels of the steel-cast brick body 1.
[0034] The metal-ceramic coating 7 inside the cast steel brick body 1 is made of a composite of ceramic particles such as titanium carbide and titanium nitride with a metal binder. It possesses high hardness and excellent corrosion resistance, effectively resisting the erosion and scouring of molten steel and slag, reducing damage to the cast steel brick body 1, and maintaining the structural integrity of the cast steel brick. The zirconium oxide coating 8 on the sidewall of the metal-ceramic coating 7 is made by thermally spraying zirconium oxide powder. Zirconia has excellent high-temperature resistance and thermal shock resistance, absorbing thermal stress generated by temperature changes, preventing cracks in the cast steel brick body 1 due to drastic temperature changes, and improving the reliability of the cast steel brick in temperature-fluctuating environments. The outermost pyrolytic carbon coating 9 is formed by the decomposition and deposition of hydrocarbons at high temperatures. It acts like a barrier film, possessing high chemical stability, forming a barrier layer between the molten steel and slag and the cast steel brick body 1, reducing erosion. Its low coefficient of friction also facilitates the flow of molten steel on the brick surface, allowing the molten steel to pass more smoothly through the channels of the cast steel brick body 1, ensuring the smooth progress of the steel casting process.
[0035] Working principle: When the cast steel brick body 1 is being laid, it slides and connects with the female opening 3 of the adjacent cast steel brick body 1 through the male opening 2 of the side wall to achieve initial splicing and positioning; at the same time, the fixing block 4 of the side wall is inserted into the fixing cavity 5 inside the adjacent cast steel brick body 1 to further strengthen the connection and make the connection more solid. The fixed skeleton 6 inside the cast steel brick body 1 enhances its structural strength when subjected to high temperature and mechanical external force, and prevents the cast steel brick body 1 from cracking or deforming.
[0036] The metal-ceramic coating 7 inside the cast steel brick body 1 is made of ceramic particles such as titanium carbide and titanium nitride and a metal binder phase. It has high hardness and good corrosion resistance, and can effectively resist the erosion and scouring of molten steel and slag. The zirconium oxide coating 8 on the side wall of the metal-ceramic coating 7 is made by thermal spraying zirconium oxide powder. It utilizes the good high temperature resistance and thermal shock resistance of zirconium oxide to absorb the thermal stress generated by temperature changes and prevent cracks from appearing in the cast steel brick body 1. The outermost pyrolytic carbon coating 9 is formed by the decomposition and deposition of hydrocarbons at high temperature. It has the characteristics of high chemical stability and can form a barrier layer between molten steel and slag and the cast steel brick body 1 to reduce erosion. At the same time, its low coefficient of friction is also conducive to the flow of molten steel on the brick surface.
[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A steel pouring brick for facilitating masonry, comprising a steel pouring brick body (1), characterized in that: The pouring steel brick body (1) is fixedly connected with a sub-port (2), the pouring steel brick body (1) is internally provided with a female port (3), the pouring steel brick body (1) is provided with a fixed assembly on the side wall, and the pouring steel brick body (1) is provided with a coating assembly on the side wall. The fixed assembly comprises a fixed block (4), the fixed block (4) is fixedly connected with the side wall of the pouring steel brick body (1), the pouring steel brick body (1) is internally provided with a fixed cavity (5), the fixed block (4) is slidably connected in the fixed cavity (5), the sub-port (2) is slidably connected in the female port (3), and the pouring steel brick body (1) is fixedly connected with a framework (6) internally.
2. A cast steel brick for easy masonry according to claim 1, characterized in that: The coating assembly comprises a metal ceramic coating (7), and the metal ceramic coating (7) is fixedly connected in the pouring steel brick body (1).
3. A cast steel brick for easy masonry according to claim 2, characterized in that: The metal ceramic coating (7) is fixedly connected with a zirconia coating (8) on the side wall, and the zirconia coating (8) is fixedly connected with a pyrolytic carbon coating (9) on the side wall.
4. A cast steel brick for easy masonry according to claim 3, wherein: The metal ceramic coating (7) is made of titanium carbide, titanium nitride and other ceramic particles and metal bonding phase, and is used for resisting the corrosion and erosion of molten steel and slag.
5. A cast steel brick for facilitating masonry according to claim 4, wherein: The zirconia coating (8) is made of zirconia powder by thermal spraying, and is used for preventing the pouring steel brick body (1) from being cracked due to temperature change.
6. A cast steel brick for facilitating masonry according to claim 5, wherein: The pyrolytic carbon coating (9) is deposited by decomposition of hydrocarbons at high temperature, and is used for blocking the direct contact of molten steel and slag with the pouring steel brick body (1) and reducing the erosion.
7. A cast steel brick for easy masonry according to claim 1, wherein: The framework (6) is made of high-temperature-resistant ceramic fiber, and is used for enhancing the structural strength of the pouring steel brick body (1).