Corundum brick with high thermal shock resistance
By designing longitudinal through holes, transverse through holes and air permeability grooves in corundum bricks, the heat distribution is achieved, and combined with the thermal insulation effect of alumina and chromium oxide layers, as well as the stable structure of inverted T-shaped grooves and clamp slots, the problem of insufficient thermal shock resistance of corundum bricks is solved, and the thermal shock and stability of the bricks are significantly improved.
Patent Information
- Application Number
- CN202421988756.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-16
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2034-08-16
AI Technical Summary
The existing corundum tiles have poor thermal shock resistance. When they withstand severe temperature changes, the thermal stress will exceed the material strength limit due to the internal temperature gradient, causing cracking.
A corundum brick including longitudinal through holes, transverse through holes and air permeability grooves is designed. Through the coordination of these through holes and slots, a uniform distribution of heat is achieved and the thermal shock of the brick body is increased. In addition, an alumina layer and a chromium oxide layer are provided on the outside for heat insulation, and the stability of the brick body is enhanced by the structure of an inverted T-shaped groove and a snap groove.
By evenly distributing heat, avoiding trapezoidal transmission of heat, the thermal shock of the brick is significantly improved, making it more stable, with a simple structure and strong practicality. The thermal insulation effect of the alumina and chromium oxide layer and the fixed structure of the inverted T-trough further enhance the overall performance of the brick.
Smart Images
Figure CN222938254U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of corundum bricks, in particular to a corundum brick with strong thermal shock resistance. Background Art
[0002] Corundum bricks refer to refractory products with corundum as the main crystal phase, having high cold crushing strength, the highest initial softening temperature under load (greater than 1700 °C), good chemical stability, strong resistance to acidic or alkaline slag, metal, glass liquid, etc. The thermal shock stability is related to its microstructure, and the dense products have good erosion resistance.
[0003] According to the above related technologies, the applicant believes that the existing corundum bricks have poor thermal shock resistance. When the corundum bricks are subjected to drastic temperature changes, resulting in internal temperature gradients, thermal stress will be generated inside the brick body due to restricted shrinkage or expansion. When the thermal stress exceeds the material strength limit, the brick body will crack. In view of the above problems, we have developed a corundum brick with strong thermal shock resistance. Summary of the Utility Model
[0004] The utility model discloses a corundum brick with strong thermal shock resistance, aiming to solve the technical problem that the existing corundum bricks have poor thermal shock resistance. When the corundum bricks are subjected to drastic temperature changes, resulting in internal temperature gradients, thermal stress will be generated inside the brick body due to restricted shrinkage or expansion. When the thermal stress exceeds the material strength limit, the brick body will crack.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0006] A corundum brick with strong thermal shock resistance includes a brick body. Longitudinal through holes are equidistantly opened at the top of the brick body, and transverse through holes are equidistantly opened on the side of the brick body. The longitudinal through holes and the transverse through holes are used in cooperation. Ventilation grooves are equidistantly opened inside the brick body, and the ventilation grooves penetrate the entire brick body. Stable mechanisms are symmetrically arranged on the outside of the brick body. The stable mechanisms include a first stable component and a second stable component, and the first stable component and the second stable component are used in cooperation.
[0007] In a preferred scheme, the first stable component includes a clamping strip, and the clamping strip is fixedly connected to one side of the brick body, and a clamping groove is opened on the other side of the brick body.
[0008] In a preferred scheme, the second stable component includes inverted T-shaped grooves, and the inverted T-shaped grooves are symmetrically opened on both sides of the brick body, and the inverted T-shaped grooves are inclined.
[0009] In a preferred scheme, the sizes of the clamping strip and the clamping groove are in line with each other, and the clamping strip and the clamping groove are used in cooperation.
[0010] In a preferred embodiment, an alumina layer is fixedly connected to the outer wall of the brick body.
[0011] In a preferred embodiment, a chromium oxide layer is fixedly connected to the outer wall of the alumina layer.
[0012] The corundum brick with strong thermal shock resistance provided by the utility model has the following advantages:
[0013] First, through the mutual cooperation among the longitudinal through holes, transverse through holes and ventilation grooves, the heat inside the brick body can be evenly distributed, avoiding the trapezoidal heat transfer, increasing the thermal shock resistance of the brick body, making the brick body more stable, with a simple structure and strong practicability.
[0014] Second, through the arranged alumina layer and chromium oxide layer, they can cooperate with each other for heat insulation. Through the arranged inverted T-shaped groove, better fixation can be formed between the brick bodies after the hardening of adhesives such as cement mortar. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 FIG. is a three-dimensional schematic diagram of a corundum brick with strong thermal shock resistance proposed by the utility model.
[0016] Figure 2 FIG. is a three-dimensional schematic diagram of a corundum brick with strong thermal shock resistance proposed by the utility model.
[0017] Figure 3 FIG. is a three-dimensional front view sectional schematic diagram of a corundum brick with strong thermal shock resistance proposed by the utility model.
[0018] Figure 4 FIG. is a three-dimensional side view sectional schematic diagram of a corundum brick with strong thermal shock resistance proposed by the utility model.
[0019] In the drawings: 1, brick body; 2, longitudinal through hole; 3, transverse through hole; 4, ventilation groove; 5, inverted T-shaped groove; 6, clamping strip; 7, clamping groove. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0020] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and marked in the drawings here can be arranged and designed in various different configurations. Therefore, the detailed description of the embodiments of the present application provided in the drawings below is not intended to limit the scope of the present application claimed, but only represents the selected embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative efforts belong to the scope of protection of the present application.
[0021] Refer toFigure 1 - Figure 4 A corundum brick with strong thermal shock resistance, including a brick body 1. Longitudinal through holes 2 are equidistantly arranged at the top of the brick body 1, and transverse through holes 3 are equidistantly arranged on the side of the brick body 1. The longitudinal through holes 2 and the transverse through holes 3 are used in cooperation with each other. Ventilation grooves 4 are equidistantly arranged inside the brick body 1, and the ventilation grooves 4 penetrate through the entire brick body 1. Stable mechanisms are symmetrically arranged on the outer side of the brick body 1. The stable mechanisms include a first stable component and a second stable component, and the first stable component and the second stable component are used in cooperation with each other. The first stable component includes a clamping strip 6, and the clamping strip 6 is fixedly connected to one side of the brick body 1. A clamping groove 7 is arranged on the other side of the brick body 1. The second stable component includes an inverted T-shaped groove 5, and the inverted T-shaped grooves 5 are symmetrically arranged on both sides of the brick body 1, and the inverted T-shaped groove 5 is inclined.
[0022] In the above technical solution, considering that there are existing corundum bricks with poor thermal shock resistance, when the corundum brick withstands drastic temperature changes and causes an internal temperature gradient, thermal stress will be generated inside the brick body 1 due to hindered contraction or expansion. When the thermal stress exceeds the material strength limit, the brick body 1 will crack. To solve such problems, the specific operations are as follows:
[0023] Refer to Figure 1 - Figure 4 Refer to
[0024] Refer to Figure 1 - Figure 4 In a preferred embodiment, the clamping strip 6 of one brick body 1 is inserted into the clamping groove 7 of another brick body 1 to realize the connection and fixation between the brick bodies 1, increase the connection strength of the brick bodies 1. After the brick body 1 is heated, through the mutual cooperation among the provided longitudinal through holes 2, transverse through holes 3 and ventilation grooves 4, the heat inside the brick body 1 can be evenly distributed, avoiding the situation of trapezoidal heat transfer, increasing the thermal shock resistance of the brick body 1, making the brick body 1 more stable, with a simple structure and strong practicability.
[0025] Working principle: In actual use, the staff first apply cement mortar on the outer side of the brick body 1, and then insert the clamping strip 6 of one brick body 1 into the inner part of the clamping groove 7 of another brick body 1 to realize the connection and fixation between the brick bodies 1, increasing the connection strength of the brick bodies 1. When the brick body 1 is heated, the alumina layer and the chromium oxide layer cooperate with each other for heat insulation. After the inside of the brick body 1 is heated, through the mutual cooperation between the longitudinal through holes 2, the transverse through holes 3 and the ventilation grooves 4, the heat inside the brick body 1 can be evenly distributed, avoiding the situation of trapezoidal heat transfer. Through the provided inverted T-shaped groove 5, after adhesives such as cement mortar are hardened, better fixation can be formed between the brick bodies 1.
[0026] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. The substitution may be the substitution of part of the structure, device, method steps, or a complete technical solution. Any equivalent substitution or change made according to the technical solution of the present invention and its inventive concept should be covered within the protection scope of the present invention.
Claims
1. A corundum brick with strong thermal shock resistance, comprising a brick body (1), characterized in that: The top of the brick body (1) is provided with longitudinal through holes (2) at equal intervals, and the side of the brick body (1) is provided with transverse through holes (3) at equal intervals, the longitudinal through holes (2) and the transverse through holes (3) are used in conjunction with each other, the interior of the brick body (1) is provided with ventilation grooves (4) at equal intervals, the ventilation grooves (4) run through the entire brick body (1), and the outer side of the brick body (1) is symmetrically provided with stabilizing mechanisms, the stabilizing mechanisms comprising a first stabilizing component and a second stabilizing component, the first stabilizing component and the second stabilizing component are used in conjunction with each other.
2. The thermal shock resistant corundum brick according to claim 1, characterized in that: The first stabilizing component comprises a clamping strip (6), wherein the clamping strip (6) is fixedly connected to one side of the brick body (1), and a clamping slot (7) is provided on the other side of the brick body (1).
3. The thermal shock resistant corundum brick according to claim 1, characterized in that: The second stabilizing component comprises an inverted T-shaped groove (5), wherein the inverted T-shaped groove (5) is symmetrically arranged on both sides of the brick body (1), and the inverted T-shaped groove (5) is arranged obliquely.
4. The thermal shock resistant corundum brick according to claim 2, characterized in that: The sizes of the card strip (6) and the card slot (7) are consistent with each other, and the card strip (6) and the card slot (7) are used in conjunction with each other.
5. The thermal shock resistant corundum brick according to claim 1, characterized in that: An aluminum oxide layer is fixedly connected to the outer wall of the brick body (1).
6. The thermal shock resistant corundum brick according to claim 5, characterized in that: The outer wall of the aluminum oxide layer is fixedly connected with a chromium oxide layer.