Steel ladle bottom brick, ladle bottom structure and steel ladle lining
By setting up connections and gap fillings with concave and convex fit on the bottom brick of the ladle, the problem of the ladle wall tiles is easily lost and steel seeped, and the connection stability and safety are improved.
Patent Information
- Application Number
- CN202422353151.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-26
AI Technical Summary
The existing bottom bricks of the laminate bag are prone to falling off when the inclination angle is large, and there is a risk of liquid steel penetration and steel clamping. In intermittent production, the cold shrinkage joints are obvious, which increases the risk of steel seepage, and the structure is not tight and easily vibrates and causes safety hazards.
The first connecting part and the second connecting part are arranged on the brick body so that they intersect along the height of the brick body, and the unevenness matches to enhance the connection stability, and fill the gaps with castables to form a bottom-pack structure.
It improves the connection stability of the bottom-covered bricks, reduces the risks of brick loss and steel seepage, and enhances the safety and sealing effect of the ladle.
Smart Images
Figure CN223114172U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ladle refractory materials. Specifically, it is a ladle bottom brick, a bottom structure and a ladle lining. Background Art
[0002] At present, most ladle bottoms at home and abroad adopt straight bricks. This brick type is convenient for construction, but for a newly built ladle or the first ladle turn, the tilting angle cannot exceed 90°. Once the tilting angle of the ladle is slightly larger, there is a risk of the bottom bricks falling off. At the same time, the gaps between the traditional design bottom bricks are continuous, there is a risk of molten steel penetrating to the bottom of the ladle. When the ladle is produced intermittently, the shrinkage joints of the bottom bricks are obvious under cold conditions. In the case of shrinkage of the castable between the bottom bricks, the permeable steel risk between the straight-through joints of the bottom bricks and the castable increases. And because the baking temperature before the ladle receives molten steel does not reach the condition of bottom expansion, the risk of steel clamping at the bottom increases. At the same time, when the ladle is hung and walked under the crane, the vibration is large. If the structure between the bricks is not tight, it is also easy to form gaps and cause safety risks. Content of the Utility Model
[0003] Therefore, the technical problem to be solved by the utility model is to provide a ladle bottom brick, a bottom structure and a ladle lining that improve the safety of the ladle and reduce the penetration of molten steel.
[0004] To solve the above technical problem, the utility model provides the following technical solution: A ladle bottom brick includes a brick body. At least one first connecting portion is provided on at least one side vertical wall surface of the brick body, and at least one second connecting portion is provided on at least another side vertical wall surface of the brick body. When two adjacent brick bodies are mutually attached: the first connecting portion on the first brick body and the second connecting portion on the second brick body are mutually cooperated and connected.
[0005] For the above ladle bottom brick, both the first connecting portion and the second connecting portion are arranged along a direction intersecting with the height of the brick body.
[0006] For the above ladle bottom brick, the end of the first connecting portion is flush with the side vertical wall surface adjacent to the side vertical wall surface where the first connecting portion is located; the end of the second connecting portion is flush with the side vertical wall surface adjacent to the side vertical wall surface where the second connecting portion is located.
[0007] For the above ladle bottom brick, when two adjacent brick bodies are mutually attached: there is a gap between the first connecting portion and the second connecting portion.
[0008] For the above ladle bottom brick, the first connecting portion and the second connecting portion are respectively arranged on two opposite side vertical wall surfaces of the brick body.
[0009] In the above-mentioned ladle bottom brick, on any two opposite vertical side walls of the brick body: on one vertical side wall of the brick body, the first connecting part is arranged, and on the other vertical side wall of the brick body, the second connecting part is arranged.
[0010] In the above-mentioned ladle bottom brick, the first connecting part protrudes outward from the brick body, and the second connecting part is recessed inward from the brick body. When two adjacent brick bodies are mutually attached: the first connecting part on one brick body is fitted into the second connecting part on the other brick body.
[0011] In the above-mentioned ladle bottom brick, on the cross-sectional plane along the height direction of the brick body: the cross-sectional shapes of the first connecting part and the second connecting part are both arc-shaped; the length of the brick body is 149 - 151 mm, the width is 99.5 - 100.5 mm, and the height is 349 - 351 mm; the radius of the first connecting part is 38 mm, and the radius of the second connecting part is 40 mm; the distance from the center of the first connecting part to the end face of the brick body in contact with the molten steel is 174 - 176 mm, and the distance from the center of the second connecting part to the end face of the brick body in contact with the molten steel is also 174 - 176 mm.
[0012] A ladle bottom structure includes ladle bottom bricks and a bottom permanent layer. The ladle bottom bricks are mutually connected by casting materials to form a bottom working layer, and the bottom working layer is connected to the bottom permanent layer by casting materials.
[0013] A ladle bottom structure includes ladle bottom bricks and a ladle permanent layer. The ladle bottom bricks are mutually connected by casting materials to form a bottom working layer, and the bottom working layer is built on the bottom of the ladle permanent layer by casting materials.
[0014] The technical solution of the present utility model has achieved the following beneficial technical effects:
[0015] By adopting the first connecting part and the second connecting part which can be mutually concave-convex fitted on the brick body, the problem of through straight joints existing between the bottom bricks is solved, the connection stability of the bottom bricks is improved, the risks of bottom brick dropping and bottom steel clamping are reduced, and the risk of molten steel penetrating into the bottom is reduced, thus improving safety. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 The front view structural schematic diagram of the ladle bottom brick of the present utility model;
[0017] Figure 2 The top view structural schematic diagram of the ladle bottom brick of the present utility model;
[0018] Figure 3 The schematic diagram of the ladle bottom brick of the present utility model being built and formed;
[0019] Figure 4 Schematic structural diagram of the bottom structure of the utility model
[0020] Figure 5 Schematic structural diagram of the brick body in Embodiment 2 of the utility model
[0021] Figure 6 Schematic three-dimensional structural diagram of the brick body in Embodiment 2 of the utility model
[0022] Figure 7 Schematic diagram after the brick body in Embodiment 2 of the utility model is built
[0023] Figure 8 Schematic diagram after the ladle is built in Embodiment 4 of the utility model
[0024] Figure 9 Schematic cross-sectional diagram after the ladle is built in Embodiment 4 of the utility model
[0025] The reference signs in the figure are represented as: 1 - brick body; 2 - first connecting part; 3 - second connecting part Detailed implementation manners
[0026] Embodiment 1
[0027] The ladle bottom brick in this embodiment, as Figure 1 shown, includes a brick body 1, at least one side vertical wall surface of the brick body 1 is provided with a first connecting part 2, and at least another side vertical wall surface of the brick body 1 is provided with a second connecting part 3; when two adjacent brick bodies 1 are mutually attached: the first connecting part 2 on the first brick body 1 and the second connecting part 3 on the second brick body 1 are mutually cooperated and connected
[0028] As Figures 2-3 shown, both the first connecting part 2 and the second connecting part 3 are arranged along a direction intersecting with the height of the brick body 1; the end of the first connecting part 2 is flush with the side vertical wall surface adjacent to the side vertical wall surface where the first connecting part 2 is located, and the end of the second connecting part 3 is flush with the side vertical wall surface adjacent to the side vertical wall surface where the second connecting part 3 is located, that is, the widths of the first connecting part 2 and the second connecting part 3 are equal to the width of the brick body 1
[0029] On the cross-section along the height direction of the brick body 1; the length of the brick body 1 is 150 mm, the width is 100 mm, and the height is 350 mm; the distance from the center of the first connecting part 2 to the end face of the brick body 1 in contact with molten steel is 175 mm, and the distance from the center of the second connecting part 3 to the end face of the brick body 1 in contact with molten steel is also 175 mm
[0030] When two adjacent brick bodies 1 are in contact with each other: there is a gap between the first connecting portion 2 and the second connecting portion 3. Specifically, during manufacturing, the cross-sectional shapes of both the first connecting portion 2 and the second connecting portion 3 are circular arcs. The radius of the first connecting portion 2 is 38 mm, and the radius of the second connecting portion 3 is 40 mm. The intermediate gap can be used to fill sealing materials such as casting materials and fire clay, thereby improving the connection strength of the brick bodies 1 and enhancing the sealing effect.
[0031] As Figures 1-2 shown, the first connecting portion 2 and the second connecting portion 3 are respectively arranged on two opposite side vertical wall surfaces of the brick body 1. The first connecting portion 2 protrudes outward from the brick body 1, and the second connecting portion 3 recesses inward into the brick body 1. When two adjacent brick bodies 1 are in contact with each other: the first connecting portion 2 on one brick body 1 is fitted into the second connecting portion 3 on the other brick body 1 to achieve the mutual connection of the brick bodies 1 and solve the problem of having a through gap between the brick bodies 1, avoiding problems such as molten steel penetration, steel inclusion, and brick dropping.
[0032] Example 2
[0033] The ladle bottom brick in this example is different from that in Example 1. As Figures 5-7 shown, on any two opposite side vertical wall surfaces of the brick body 1: the first connecting portion 2 is arranged on the side vertical wall surface of one brick body 1, and the second connecting portion 3 is arranged on the side vertical wall surface of the other brick body 1. That is, on the four side vertical wall surfaces of the brick body 1, the first connecting portion 2 is arranged on two opposite surfaces, and the second connecting portion 3 is arranged on the other two opposite surfaces. When connecting, it not only ensures the stable connection of the front and rear brick bodies 1 but also enables the stable connection of the left and right brick bodies 1.
[0034] Example 3
[0035] A ladle bottom structure uses the bottom bricks in Example 1 or Example 2. The bottom bricks are laid to form a permanent ladle bottom layer. The ladle bottom bricks are connected to each other through casting materials, and the working ladle bottom layer is connected to the permanent ladle bottom layer through casting materials to form the ladle bottom structure.
[0036] Example 4
[0037] A ladle lining uses the bottom bricks in Example 1 or Example 2. As Figures 8-9 shown, the bottom bricks are laid on the bottom of the permanent ladle lining of the ladle. The bottom bricks are connected to each other through casting materials. The ladle bottom bricks are connected to each other through casting materials to form the working ladle bottom layer, and the working ladle bottom layer is laid on the bottom of the permanent ladle lining of the ladle through casting materials.
[0038] Obviously, the above embodiments are merely examples for clear illustration and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the claims of this patent application.
Claims
1. A ladle bottom brick, characterized in that, It includes a brick body (1), on which at least one first connecting part (2) is arranged on at least one side vertical wall surface, and at least one second connecting part (3) is arranged on at least another side vertical wall surface; when two adjacent brick bodies (1) are mutually attached: the first connecting part (2) on the first brick body (1) is connected with the second connecting part (3) on the second brick body (1) in a cooperative manner.
2. The ladle bottom brick according to claim 1, characterized in that, Both the first connecting part (2) and the second connecting part (3) are arranged in a direction intersecting with the height of the brick body (1).
3. The ladle bottom brick according to claim 2, characterized in that, The end of the first connecting part (2) is flush with the side vertical wall surface adjacent to the side vertical wall surface where the first connecting part (2) is located; the end of the second connecting part (3) is flush with the side vertical wall surface adjacent to the side vertical wall surface where the second connecting part (3) is located.
4. A ladle bottom brick according to claim 1, characterized in that, When two adjacent brick bodies (1) are mutually attached: there is a gap between the first connecting part (2) and the second connecting part (3).
5. A ladle bottom brick according to any one of claims 1-4, characterized in that, The first connecting part (2) and the second connecting part (3) are respectively arranged on two opposite side vertical wall surfaces of the brick body (1).
6. A ladle bottom brick according to any one of claims 1-4, characterized in that, On any two opposite side vertical wall surfaces of the brick body (1): the first connecting part (2) is arranged on the side vertical wall surface of one brick body (1), and the second connecting part (3) is arranged on the side vertical wall surface of the other brick body (1).
7. A ladle bottom brick according to any one of claims 1-4, characterized in that, The first connecting part (2) protrudes outward from the brick body (1), and the second connecting part (3) is recessed inward into the brick body (1); when two adjacent brick bodies (1) are mutually attached: the first connecting part (2) on one brick body (1) is fitted into the second connecting part (3) on the other brick body (1).
8. A ladle bottom brick according to claim 7, characterized in that, On the cross-section along the height direction of the brick body (1): the cross-sectional shapes of both the first connecting part (2) and the second connecting part (3) are arc-shaped; the length of the brick body (1) is 149 - 151 mm, the width is 99.5 - 100.5 mm, and the height is 349 - 351 mm; the radius of the first connecting part (2) is 38 mm, and the radius of the second connecting part (3) is 40 mm; the distance from the center of the first connecting part (2) to the end face of the brick body (1) in contact with molten steel is 174 - 176 mm, and the distance from the center of the second connecting part (3) to the end face of the brick body (1) in contact with molten steel is also 174 - 176 mm.
9. A ladle bottom structure, characterized in that, It includes the ladle bottom brick and the bottom permanent layer according to any one of claims 1 - 8. The ladle bottom bricks are connected to each other by casting material to form the bottom working layer, and the bottom working layer is connected to the bottom permanent layer by casting material.
10. A ladle lining, characterized in that, It includes the ladle bottom brick and the ladle permanent layer according to any one of claims 1 - 8. The ladle bottom bricks are connected to each other by casting material to form the bottom working layer, and the bottom working layer is laid on the bottom of the ladle permanent layer by casting material.