Magnesia carbon brick capable of being stably piled

Abstract

The utility model provides a stably piled magnesia carbon brick which comprises brick bodies and fixing pieces, the brick bodies are hexahedrons, the fixing pieces are fixedly arranged on the upper surfaces and the lower surfaces of the brick bodies, the fixing pieces on the upper surfaces of the brick bodies protrude out of the surfaces of the brick bodies, the fixing pieces on the lower surfaces of the brick bodies are inwards concaved in the surfaces of the brick bodies, and the two brick bodies are fixedly connected and piled through the fixing pieces. The outer surfaces of the fixing pieces are provided with raised grains, the surfaces of the raised grains on the upper fixing piece and the lower fixing piece are attached to each other, compared with a conventional magnesia carbon brick with a flat brick face, when the magnesia carbon brick is piled, the first limiting ridge and the second limiting ridge are connected in a clamped mode, and the attached raised grains are used for limiting; free movement in the front direction, the back direction, the left direction and the right direction is fixed through attachment between the raised grains and clamping between the first limiting ridges and the second limiting ridges, movement between the upper direction and the lower direction is limited through stacking of the magnesia carbon bricks, and the stacking stability of the upper magnesia carbon brick and the lower magnesia carbon brick is improved.

Description

Technical Field

[0001] The utility model relates to the field of magnesia-carbon bricks, in particular to a magnesia-carbon brick which is convenient to stack. Background Art

[0002] Magnesia-carbon bricks are unburned carbon composite refractory materials made of high-melting-point basic oxide magnesia and high-melting-point carbon materials that are difficult to be infiltrated by slag, adding various non-oxide additives and bonded with carbonaceous binders. Magnesia-carbon bricks are mainly used for the inner linings of converters, AC arc furnaces, DC arc furnaces, and the slag lines of ladles, etc. As a composite refractory material, magnesia-carbon bricks effectively utilize the strong slag erosion resistance of magnesia, the high thermal conductivity and low expansion of carbon, compensating for the biggest drawback of poor spalling resistance of magnesia, and having advantages such as good high-temperature resistance and strong slag resistance. The conventional stacking method of magnesia-carbon bricks is to bond two magnesia-carbon bricks with an adhesive. However, the connection stability of this method is not high, and it consumes a lot of adhesive, and it is easy to cause the magnesia-carbon bricks to fall off when heated, resulting in losses. Summary of the Utility Model

[0003] In view of the above problems, the utility model provides a magnesia-carbon brick which is convenient to stack.

[0004] To achieve the above object, the utility model adopts the following technical scheme: A magnesia-carbon brick with stable stacking, including a brick body and fixing parts. The brick body is a hexahedron, and the fixing parts are fixedly arranged on the upper surface and the lower surface of the brick body. The fixing parts on the upper surface of the brick body protrude from the surface of the brick body, and the fixing parts on the lower surface of the brick body are recessed into the surface of the brick body. Two brick bodies are fixedly connected and stacked through the fixing parts. The outer surface of the fixing parts is provided with corrugations, and the surfaces of the corrugations on the upper and lower fixing parts are mutually attached.

[0005] Preferably, the fixing parts are arranged at the centers of the brick body, and the area of the fixing parts is smaller than the surface areas of the upper and lower surfaces of the brick body.

[0006] Preferably, the upper and lower surfaces of the brick body are both provided with a first limiting groove and a second limiting groove. The first limiting groove and the second limiting groove are respectively located on both sides of the fixing parts. The first limiting groove is composed of one limiting groove, and the first limiting groove protrudes from the upper surface of the brick body. The second limiting groove is recessed into the lower surface of the brick body. The first limiting groove is correspondingly clamped between the second limiting grooves on the upper brick body.

[0007] Preferably, the distance between the two limiting grooves in the second limiting groove is adapted to the width of the limiting groove, and the heights of the limiting grooves used for the first limiting groove and the second limiting groove are the same.

[0008] Preferably, the directions of the first limiting ridge and the second limiting ridge are perpendicular to the direction in which the fixing member can slide.

[0009] Compared with the prior art, the beneficial effects of the present utility model are as follows: Compared with the conventional magnesia-carbon brick for flattening the brick surface, when the present utility model is stacked, the first limiting ridge is clamped with the second limiting ridge, and the fit between the corrugations is used for limiting. The fit between the corrugations and the clamping between the first limiting ridge and the second limiting ridge fix the free movement in the four directions of front, back, left, and right. The movement in the up and down directions is restricted by the superposition of magnesia-carbon bricks. And in order to ensure fixation, a small amount of adhesive is also added between the corrugations where the upper and lower magnesia-carbon bricks are in contact, which can improve the stacking stability of the upper and lower magnesia-carbon bricks. If the fixing member is damaged during transportation, it can still be fixed by the first limiting ridge and the second limiting ridge, reducing the situation where the surface of the conventional brick body is damaged and cannot be stably fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is a schematic diagram of a magnesia-carbon brick with stable stacking according to the present utility model;

[0011] Figure 2 is a cross-sectional view of a magnesia-carbon brick with stable stacking according to the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0012] In order to further understand the purpose, structure, characteristics, and functions of the present utility model, the following is a detailed description in conjunction with the embodiments.

[0013] Please refer to Figure 1 and Figure 2 , a magnesia-carbon brick with stable stacking according to an embodiment of the present utility model includes a brick body 1 and a fixing member 2. The brick body 1 is a hexahedron. The fixing member 2 is fixedly arranged on the upper surface and the lower surface of the brick body 1. The fixing member 2 on the upper surface of the brick body 1 protrudes from the surface of the brick body 1, and the fixing member 2 on the lower surface of the brick body 1 is recessed into the surface of the brick body 1. Two brick bodies 1 are fixedly connected and stacked through the fixing member 2. The outer surface of the fixing member 2 is provided with corrugations 3, and the surfaces of the corrugations 3 on the upper and lower fixing members 2 are in contact with each other.

[0014] The upper and lower surfaces of the brick body 1 are respectively provided with fixing members 2, and the upper and lower fixing members 2 are provided with corrugations 3 that can be in contact with each other. Limiting is carried out through the peaks and valleys of the corrugations 3. When stacking, an adhesive is sprayed on the surface of the corrugations 3, and the corrugations 3 can stably stack the upper and lower brick bodies 1 together, facilitating positioning and making the stacking more stable.

[0015] Preferably, the fixing member 2 is arranged at the center of the brick body 1, and the area of the fixing member 2 is smaller than the surface areas of the upper and lower surfaces of the brick body 1.

[0016] The area of the fixing member 2 is smaller than the surface areas of the upper and lower surfaces of the brick body 1, ensuring that the fixing member 2 is located within the brick body 1 and preventing the fixing member 2 from being too large, which may cause the brick body 1 to slide and shift, affecting the stability of the brick body 1 during stacking.

[0017] Preferably, the upper and lower surfaces of the brick body 1 are both provided with a first limiting groove 4 and a second limiting groove 5. The first limiting groove 4 and the second limiting groove 5 are respectively located on both sides of the fixing member 2. The first limiting groove 4 consists of one limiting groove and protrudes from the upper surface of the brick body 1. The second limiting groove 5 is recessed in the lower surface of the brick body 1. The first limiting groove 4 is adaptively clamped between the second limiting grooves 5 on the upper brick body 1.

[0018] The first limiting groove 4 and the second limiting groove 5 are used to limit the forward and backward movement of the brick body 1, preventing the brick body 1 from moving after the adhesive fails, which may cause the entire magnesia-carbon brick plate to collapse.

[0019] Preferably, the distance between the two limiting grooves in the second limiting groove 5 is adapted to the width of the limiting groove, and the heights of the limiting grooves used for the first limiting groove 4 and the second limiting groove 5 are the same.

[0020] The heights of the limiting grooves used for the first limiting groove 4 and the second limiting groove 5 are the same, ensuring that the first limiting groove 4 can be completely clamped within the second limiting groove 4, preventing the first limiting groove 4 from pushing the brick body 1 open and causing a gap between the upper and lower brick bodies.

[0021] Preferably, the directions of the first limiting groove 4 and the second limiting groove 5 are perpendicular to the direction in which the fixing member 2 can slide.

[0022] The directions of the first limiting groove 4 and the second limiting groove 5 are perpendicular to the direction in which the corrugations 3 can move, fixing the moving direction of the entire brick body 1 and ensuring the stability of the entire brick body 1 during stacking.

[0023] As described above, when the magnesia-carbon brick that is convenient for stacking of the present utility model is actually used, an adhesive is applied to the surface of the corrugations 3 on the brick body 1. The second limiting groove 5 on the lower surface of the brick body 1 is clamped with the first limiting groove 4 on the upper surface of the lower brick body 1. After the first limiting groove 4 and the second limiting groove 5 are clamped, move the brick body 1 left and right so that the corrugations 3 on the fixing member 2 on the lower surface of the brick body 1 are mutually attached to the corrugations 3 on the upper surface of the lower brick body 1. Thus, the stacking is achieved. Compared with the conventional direct application of adhesive, it can not only reduce the use of adhesive but also increase the stability of stacking.

[0024] The present utility model has been described by the above related embodiments. However, the above embodiments are only examples for implementing the present utility model. It must be pointed out that the disclosed embodiments do not limit the scope of the present utility model. On the contrary, any changes and modifications made without departing from the spirit and scope of the present utility model fall within the scope of the patent protection of the present utility model.

Claims

1. A stable stacked magnesia carbon brick, characterized in that: The invention comprises a brick body (1) and a fixing part (2), wherein the brick body (1) is a hexahedron, and the fixing part (2) is fixedly arranged on the upper surface and the lower surface of the brick body (1), wherein the fixing part (2) on the upper surface of the brick body (1) protrudes from the surface of the brick body (1), and the fixing part (2) on the lower surface of the brick body (1) is recessed into the surface of the brick body (1), and two brick bodies (1) are fixedly connected and stacked by the fixing part (2), and the outer surface of the fixing part (2) is provided with a corrugated pattern (3), and the surfaces of the corrugated patterns (3) on the upper and lower fixing parts (2) are in contact with each other.

2. The stably stacked magnesia carbon brick according to claim 1, characterized in that: The fixing part (2) is arranged at the center of the brick body (1), and the area of ​​the fixing part (2) is smaller than the surface area of ​​the upper and lower surfaces of the brick body (1).

3. The stably stacked magnesia-carbon brick according to claim 2, characterized in that: The upper and lower surfaces of the brick body (1) are both provided with a first limiting ridge (4) and a second limiting ridge (5), the first limiting ridge (4) and the second limiting ridge (5) being respectively located on both sides of the fixing member (2), the first limiting ridge (4) being composed of a limiting ridge, the first limiting ridge (4) being protrudingly arranged on the upper surface of the brick body (1), the second limiting ridge (5) being recessed in the lower surface of the brick body (1), the first limiting ridge (4) being adaptively clamped between the second limiting ridges (5) on the upper brick body (1).

4. The stably stacked magnesia-carbon brick according to claim 3, characterized in that: The distance between two limit ridges in the second limit ridge (5) is adapted to the width of the limit ridge, and the limit ridge heights used by the first limit ridge (4) and the second limit ridge (5) are consistent.

5. The stably stacked magnesia carbon bricks according to claim 4, characterized in that: The directions of the first limiting step (4) and the second limiting step (5) are perpendicular to the sliding direction of the fixing member (2).

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