Magnesia carbon brick and steel ladle slag line thereof

Abstract

The utility model provides a magnesia carbon brick which comprises a first cambered surface, a second cambered surface, a first inclined surface and a second inclined surface, the first cambered surface and the second cambered surface are oppositely distributed at an interval, and the first inclined surface and the second inclined surface are oppositely distributed at an interval. The first inclined surface and the second inclined surface are both connected between the first cambered surface and the second cambered surface, the first inclined surface is sunken to form a groove, and the second inclined surface is protruded to form a convex edge corresponding to the groove; the magnesia carbon bricks can be attached more tightly, the structural stability is guaranteed, the flatness in the building process is guaranteed, the magnesia carbon bricks are matched with one another, the magnesia carbon bricks are combined more tightly, and the overall anti-permeation performance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of refractory materials, in particular to a magnesia carbon brick and a ladle slag line thereof. Background Art

[0002] The ladle is an indispensable high-temperature container in steel production. It serves to hold the molten steel from the converter and perform secondary refining on the molten steel. The slag line of the ladle is the weakest part of the ladle system. It is subjected to multiple erosions from air, slag, and molten steel for a long time, as well as mechanical stress from the ladle. At present, the bottom bricks of the common ladles on the market all adopt a standard rectangular structure. This type of bottom brick structure has weak compression force and is very prone to separation, sinking, falling off, and damage, which directly affects the service life of the ladle. In addition, the slag line bricks used in steel mills are often damaged from the brick joints during use, and break after dozens of uses. As the use time increases, molten slag continues to invade from the brick joints, causing premature damage to the slag line bricks and reducing the furnace life.

[0003] In view of this, it is necessary to provide a new type of magnesia carbon brick and its ladle slag line to overcome the above defects. Utility Model Content

[0004] The utility model aims to provide a magnesia carbon brick and a ladle slag line thereof, which can make the magnesia carbon bricks fit more closely, ensure the stability of the structure, ensure the flatness during masonry, and the magnesia carbon bricks cooperate with each other, so that the magnesia carbon bricks are more closely bonded with each other, thereby improving the overall anti-permeability performance.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a magnesium carbon brick, which includes a first curved surface, a second curved surface, a first inclined surface and a second inclined surface, the first curved surface and the second curved surface are relatively spaced apart, the first inclined surface and the second inclined surface are relatively spaced apart, and the first inclined surface and the second inclined surface are both connected between the first curved surface and the second curved surface, the first inclined surface is concave to form a groove, and the second inclined surface is convex to form a ridge corresponding to the groove.

[0006] Preferably, the magnesium carbon brick also includes a third inclined surface and a fourth inclined surface, the third inclined surface and the fourth inclined surface are relatively spaced apart, the third inclined surface is connected to the first curved surface, the second curved surface, the first inclined surface and the second inclined surface, the fourth inclined surface is connected to the first curved surface, the second curved surface, the first inclined surface and the second inclined surface, a groove is formed on the third inclined surface of the magnesium carbon brick, and a protrusion corresponding to the groove is formed on the fourth inclined surface of the magnesium carbon brick.

[0007] Preferably, the number of the grooves is three, and the three grooves are evenly spaced; the number of the bumps is three, and the three bumps are evenly spaced.

[0008] A ladle slag line for magnesia carbon bricks comprises a ladle wall, wherein the magnesia carbon bricks adhere to the ladle wall and can move on the ladle wall.

[0009] Preferably, the ladle wall is formed by stacking a plurality of annular steel rings.

[0010] Compared with the prior art, the beneficial effect lies in that, when the magnesia carbon bricks are laid, the first slope of the magnesia carbon brick fits with the second slope of another magnesia carbon brick, and the convex ridges of the second slope are embedded in the grooves of the first slope, so that the magnesia carbon bricks fit more closely, ensuring the stability of the structure, and the grooves and convex ridges make the magnesia carbon bricks bite each other, ensuring the flatness during laying, and the magnesia carbon bricks cooperate with each other, making the overall force more uniform, avoiding local excessive force and causing damage to the brick body, and can also make the bond between magnesia carbon bricks tighter, improving the overall anti-penetration performance.

[0011] Other features and advantages of the utility model will be stated in the following description, and some will be apparent from the description, or can be understood through the implementation of the utility model. The features and advantages of the utility model can be realized and obtained by the elements and combinations specifically pointed out in the attached application scope. These and other features of the utility model will become more clearly understood according to the following description and the attached claims, or can be understood through the implementation of the embodiments described in the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 This is a schematic structural diagram of the magnesia carbon brick provided by the utility model.

[0014] Figure 2 for Figure 1 Schematic diagram of the use of magnesia carbon bricks shown.

[0015] Figure numerals: 1, first curved surface; 2, second curved surface; 3, first inclined surface; 31, groove; 4, second inclined surface; 41, convex ridge; 5, third inclined surface; 51, groove; 6, fourth inclined surface; 7, ladle wall. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and beneficial technical effect of the utility model clearer, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described in this specification are only for explaining the utility model, and are not intended to limit the utility model.

[0017] It should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0018] It should also be noted that, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be determined according to the specific circumstances.

[0019] In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features. In addition, the meaning of "multiple" and "several" refers to two or more, unless otherwise clearly and specifically defined.

[0020] See also Figure 1 The utility model provides a magnesium carbon brick, which includes a first curved surface 1, a second curved surface 2, a first inclined surface 3 and a second inclined surface 4, wherein the first curved surface 1 and the second curved surface 2 are relatively spaced apart, the first inclined surface 3 and the second inclined surface 4 are relatively spaced apart, and the first inclined surface 3 and the second inclined surface 4 are both connected between the first curved surface 1 and the second curved surface 2, the first inclined surface 3 is recessed to form a groove 31, and the second inclined surface 4 is raised to form a convex ridge 41 corresponding to the groove 31.

[0021] In this way, when the magnesia carbon bricks are laid, the first inclined surface 3 of the magnesia carbon brick fits with the second inclined surface 4 of another magnesia carbon brick, and the convex ridge 41 of the second inclined surface 4 is embedded in the groove 31 of the first inclined surface 3, so that the magnesia carbon bricks fit more closely, ensuring the stability of the structure, and the groove 31 and the convex ridge 41 make the magnesia carbon bricks bite each other, ensuring the flatness during laying, and the magnesia carbon bricks cooperate with each other, making the overall force more uniform, avoiding local excessive force and damage to the brick body.

[0022] In a preferred embodiment, the magnesium carbon brick further comprises a third inclined surface 5 and a fourth inclined surface 6, the third inclined surface 5 and the fourth inclined surface 6 are relatively spaced apart, the third inclined surface 5 is connected to the first curved surface 1, the second curved surface 2, the first inclined surface 3 and the second inclined surface 4, the fourth inclined surface 6 is connected to the first curved surface 1, the second curved surface 2, the first inclined surface 3 and the second inclined surface 4, the third inclined surface 5 of the magnesium carbon brick is provided with a groove 51, and the fourth inclined surface 6 of the magnesium carbon brick is provided with a protrusion corresponding to the groove 51. It should be noted that in this embodiment, the number of the grooves 51 is three, and the three grooves 51 are evenly spaced apart; the number of the protrusions is three, and the three protrusions are evenly spaced apart. Through such a design, when the magnesium carbon brick is laid, the third inclined surface 5 of the magnesium carbon brick fits with the fourth inclined surface 6 of another magnesium carbon brick, and the protrusion of the fourth inclined surface 6 is embedded in the groove 51 of the third inclined surface 5, so that the magnesium carbon bricks fit more closely and the stability of the structure is ensured.

[0023] The utility model also provides a ladle slag line for magnesia carbon bricks, comprising a ladle wall 7 , the magnesia carbon bricks being in contact with the ladle wall 7 and being able to move on the ladle wall 7 .

[0024] In a preferred embodiment, the ladle wall 7 is formed by stacking a plurality of circular steel rings. Thus, since the ladle wall 7 is in an arc shape, when the magnesia carbon bricks are laid, the third inclined surface 5 of the magnesia carbon bricks contacts the ladle wall 7, and the first arc surface 1 of each two adjacent magnesia carbon bricks fits with the arc surface of another magnesia carbon brick, so that the magnesia carbon bricks are more tightly bonded to each other, thereby improving the overall anti-permeability performance.

[0025] The present invention is not limited to what is described in the specification and implementation modes, and therefore, additional advantages and modifications can be easily realized by those familiar with the art. Therefore, without departing from the spirit and scope of the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details, representative devices, and illustrative examples shown and described herein.

Claims

1. A magnesia carbon brick, characterized in that: The magnesia carbon brick comprises a first curved surface (1), a second curved surface (2), a first inclined surface (3) and a second inclined surface (4); the first curved surface (1) and the second curved surface (2) are relatively spaced apart; the first inclined surface (3) and the second inclined surface (4) are relatively spaced apart; and both the first inclined surface (3) and the second inclined surface (4) are connected between the first curved surface (1) and the second curved surface (2); the first inclined surface (3) is recessed to form a groove (31); and the second inclined surface (4) is raised to form a convex ridge (41) corresponding to the groove (31).

2. The magnesia carbon brick according to claim 1, characterized in that: The magnesium carbon brick further comprises a third inclined surface (5) and a fourth inclined surface (6), wherein the third inclined surface (5) and the fourth inclined surface (6) are relatively spaced apart, the third inclined surface (5) is connected to the first curved surface (1), the second curved surface (2), the first inclined surface (3) and the second curved surface (4), and the fourth inclined surface (6) is connected to the first curved surface (1), the second curved surface (2), the first inclined surface (3) and the second inclined surface (4), and a groove (51) is formed on the third inclined surface (5) of the magnesium carbon brick, and a protrusion corresponding to the groove (51) is formed on the fourth inclined surface (6) of the magnesium carbon brick.

3. The magnesia carbon brick according to claim 2, characterized in that: The number of the grooves (51) is three, and the three grooves (51) are evenly spaced apart; the number of the convex blocks is three, and the three convex blocks are evenly spaced apart.

4. A ladle slag line for the magnesia carbon brick according to any one of claims 1 to 3, characterized in that: It comprises a ladle wall (7), wherein the magnesia carbon bricks are attached to the ladle wall (7) and can move on the ladle wall (7).

5. The ladle slag line for magnesia carbon bricks according to claim 4, characterized in that: The ladle wall (7) is formed by stacking a plurality of annular steel rings.

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