Arc-shaped protection brick of refractory brick

Abstract

The utility model provides a refractory brick arc-shaped protection brick which comprises an arc-shaped brick body, the inner side face of the arc-shaped brick body comprises a first side face, a second side face and a connecting face, the first side face and the second side face are perpendicular to each other, and the two sides of the connecting face are connected with the first side face and the second side face respectively. And the inner side surface of the arc-shaped brick body is provided with a convex edge. The protection brick can be directly used at the four corners of the high-temperature firing furnace, and the protection brick is used as a refractory brick, so that the requirement that the corners of the high-temperature firing furnace are of an arc-shaped structure is met. The right-angle sides of the four corners of the high-temperature firing furnace can be wrapped by the inner side faces of the arc-shaped brick bodies, deviation and deformation of the refractory brick in the using process are prevented, the service life of the high-temperature firing furnace is prolonged, the two side edges of the right-angle sides are limited and corrected, the right-angle positions are prevented from cracking, and the two side edges of the right-angle sides are prevented from being opened outwards due to the fact that molten steel enters cracks. Right-angle deformation is prevented, and the service life of the refractory brick is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of refractory building materials, in particular to a refractory brick arc protection brick. Background Art

[0002] Refractory bricks are called fire bricks for short. Refractory bricks are commonly used insulation materials in high-temperature firing furnaces. Currently, most of the common refractory bricks on the market are regular rectangular and cubic structures. First of all, this type of structure cannot meet the refractory requirements for special shapes. In particular, it is not suitable for arc-shaped corners; secondly, the corners of high-temperature firing furnaces with this type of structure are often right angles. Due to the high temperature in the furnace, it is easy to crack at the right angles, causing high-temperature molten steel to enter the cracks, affecting the life of the high-temperature firing furnace. Summary of the invention

[0003] In view of the above problems, the utility model provides a refractory arc protection brick.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A refractory arc-shaped protective brick comprises an arc-shaped brick body, the inner side surface of the arc-shaped brick body comprises two mutually perpendicular first side surfaces, a second side surface and a connecting surface, the two sides of the connecting surface are respectively connected to the first side surface and the second side surface, and a convex ridge is arranged on the inner side surface of the arc-shaped brick body.

[0006] Preferably, the connection between the connecting surface and the first side surface and the second side surface is a rounded connection structure.

[0007] Preferably, the ridges are strip-shaped ridges, and the ridges are arranged along the thickness direction of the arc-shaped brick body.

[0008] Preferably, the ridges include a first ridge and a second ridge, the first ridge is arranged on the first side surface or the second side surface, the second ridge is arranged on the connecting surface, there are two second ridges, and the second ridges are symmetrically arranged on both sides of the center line of the connecting surface.

[0009] Preferably, the arc-shaped brick body is a fan-shaped brick, and the central angle of the fan-shaped brick is 270°.

[0010] Preferably, the cross-sections of the first convex ridge and the second convex ridge are both semicircular, and the radius of the first convex ridge is greater than the radius of the second convex ridge.

[0011] Preferably, the arc-shaped brick body is made by integral casting.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: (1) The utility model has two methods of use. One is to use the device directly at the four corners of the high-temperature firing furnace, and use the protective bricks as refractory bricks to meet the requirements of the high-temperature firing furnace for the arc-shaped structure at the corners. The other is to wrap the right-angled sides of the four corners of the high-temperature firing furnace with the inner side of the arc-shaped brick body to prevent the refractory bricks from deflecting and deforming during use, thereby extending the service life of the high-temperature firing furnace, and to limit and correct the two sides of the right-angled sides to prevent cracking at the right angles. Molten steel enters the cracks and causes the two sides of the right angle to open outward, thereby preventing the right angles from deforming and extending the service life of the refractory bricks. (2) The utility model has a high connection strength and is not easy to crack. The service life of the device is long. The strip convex ribs are designed to prevent the molten steel from being trapped at the ribs when used in the first use mode; when used in the second use mode, the ribs fit the outer wall of the refractory bricks to prevent the refractory bricks from sliding between the refractory bricks and the utility model, thereby ensuring the stability of the installation and having good heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of Example 1 of the utility model;

[0014] Figure 2 This is a structural schematic diagram of a first method of use of Embodiment 1 of the present utility model;

[0015] Figure 3 This is a structural schematic diagram of a second method of use of Embodiment 1 of the present utility model;

[0016] Figure 4 This is a schematic diagram of the three-dimensional structure of Example 2 of the utility model;

[0017] Figure 5 This is a schematic diagram of the usage structure of Example 2 of the utility model. DETAILED DESCRIPTION

[0018] In order to provide a further understanding of the purpose, structure, features, and functions of the present invention, the present invention is described in detail below with reference to the embodiments. Example

[0019] Please refer to Figure 1 , Figure 2 and Figure 3, a refractory arc-shaped protective brick of an embodiment of the utility model comprises an arc-shaped brick body, the inner side surface of the arc-shaped brick body comprises two mutually perpendicular first side surfaces 100, a second side surface 200 and a connecting surface 300, the two sides of the connecting surface 300 are respectively connected to the first side surface 100 and the second side surface 200, and a convex ridge 400 is arranged on the inner side surface of the arc-shaped brick body, and the protective brick is made of refractory material. There are two ways of use, the first is to use the device directly at the four corners of a high-temperature firing furnace, the protective brick is used as a refractory brick, and the refractory bricks are fixed at both ends of the protective brick to form the arc corners of the high-temperature firing furnace, which meets the requirement that the corners of the high-temperature firing furnace are arc-shaped structures.

[0020] The second method is to wrap the right angles of the four corners of the high-temperature firing furnace with the inner side of the arc-shaped brick body. The inner convex ridge 400 contacts the outer surface of the refractory brick during use. The inner convex ridge increases the friction between the inner side of the protective brick and the refractory brick, preventing the refractory brick from shifting and deforming during use, thereby extending the service life of the high-temperature firing furnace. Through the vertically arranged first side surface 100 and second side surface 200, the two sides of the right angle can be limited and corrected to prevent cracking at the right angle. The molten steel enters the cracks, causing the two sides of the right angle to open outward, preventing the right angle from deforming, and extending the service life of the refractory brick.

[0021] The connection between the connection surface 300 and the first side surface 100 and the second side surface 200 is a rounded connection structure, which ensures the connection strength between the connection surface 300 and the two side surfaces, and the connection is not prone to cracking by the rounded connection, thereby extending the service life of the device.

[0022] The convex rib 400 is a strip convex rib, and the convex rib 400 is arranged along the thickness direction of the arc-shaped brick body. Firstly, when used in the first use mode, the convex rib 400 is designed to ensure that the molten steel flows smoothly downward and avoids the molten steel being trapped at the convex rib; secondly, when used in the second use mode, the convex rib fits the outer wall of the refractory brick, avoiding sliding between the refractory brick and the utility model, and ensuring the stability of the installation.

[0023] The ridges 400 include a first ridge 410 and a second ridge 420. The first ridge 410 is disposed on the first side surface 100 or the second side surface 200, and the second ridge 420 is disposed on the connecting surface 300. There are two second ridges 420, and the second ridges 420 are symmetrically disposed on both sides of the center line of the connecting surface 300. The second ridges 420 can play a certain positioning role, limiting the right angle between the two second ridges 420, reducing the deviation of the relative position, and making it more convenient to use.

[0024] The cross-sections of the first ridge 410 and the second ridge 420 are both semicircular, so that the ridge 400 is more wear-resistant, and the design reduces the contact surface between the first ridge 410 and the refractory brick, which is beneficial to heat dissipation. The radius of the first ridge 410 is greater than the radius of the second ridge 420. When in use, the first ridge 410 can contact the side of the refractory brick, preventing the second ridge 420 from having a larger radius and contacting the two right-angled sides, causing the first ridge 410 to be unable to contact the outer wall of the refractory brick.

[0025] The arc-shaped brick body is made by integrated casting, which ensures the strength of the utility model and prolongs the service life of the protective brick. Example

[0026] The arc-shaped brick body is a fan-shaped brick 1, and the central angle of the fan-shaped brick 1 is 270°. This design can only be used as a right-angle protection brick. The 90° opening of the fan-shaped brick 1 surrounds the right angles of the four corners of the furnace to prevent right-angle deformation and cracking, thereby ensuring the service life of the high-temperature firing furnace. A convex ridge can also be set on the inner side of the fan-shaped brick 1 to increase friction and facilitate heat dissipation.

[0027] The present invention has been described by the above-mentioned relevant embodiments, however, the above-mentioned embodiments are only examples for implementing the present invention. It must be pointed out that the disclosed embodiments do not limit the scope of the present invention. On the contrary, any changes and modifications made without departing from the spirit and scope of the present invention are within the scope of patent protection of the present invention.

Claims

1. A refractory arc protection brick, characterized in that: It comprises an arc-shaped brick body, the inner side surface of which comprises two mutually perpendicular first side surfaces, a second side surface and a connecting surface, the two sides of the connecting surface are respectively connected to the first side surface and the second side surface; and a convex ridge is arranged on the inner side surface of the arc-shaped brick body.

2. A refractory arc protection brick according to claim 1, characterized in that: The connection between the connecting surface and the first side surface and the second side surface is a rounded connection structure.

3. A refractory arc protection brick according to claim 1, characterized in that: The convex ridge is a strip-shaped convex ridge, and the convex ridge is arranged along the thickness direction of the arc-shaped brick body.

4. A refractory arc protection brick according to claim 1, characterized in that: The ridges include a first ridge and a second ridge, wherein the first ridge is arranged on the first side surface or the second side surface, and the second ridge is arranged on the connecting surface. There are two second ridges, and the second ridges are symmetrically arranged on both sides of the center line of the connecting surface.

5. The arc-shaped refractory brick protection brick according to claim 1, characterized in that: The arc-shaped brick body is a fan-shaped brick, and the central angle of the fan-shaped brick is 270°.

6. A refractory arc protection brick as claimed in claim 4, characterized in that: The cross sections of the first convex ridge and the second convex ridge are both semicircular, and the radius of the first convex ridge is greater than the radius of the second convex ridge.

7. The arc-shaped refractory brick protection brick according to claim 1, characterized in that: The arc-shaped brick body is made by integral casting.

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