Thermal shock resistant layered structure of corundum refractory material for silicon package
By employing a layered refractory material design on the inner wall of the silicon-clad steel shell, and utilizing a combination of corundum bricks and mullite buffer layers, the interlocking and thermal stress dispersion between the main bricks are achieved, solving the problems of easy detachment of refractory materials and poor thermal shock resistance, thus improving the stability and thermal shock resistance of the silicon cladding.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIAOZUO SENZE HIGH TEMPERATURE MATERIAL CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-05-19
AI Technical Summary
Existing refractory materials have a simple structure when laid on the inner wall of silicon-clad steel shells, which makes it easy for individual bricks to fall off, leading to a chain reaction of collapses, and their thermal shock resistance is not ideal.
The structure employs a layered structure of silicon-clad corundum refractory material for thermal shock resistance, comprising a main brick body, a first thermal shock buffer layer, a first support layer, an insulation layer, and connecting blocks. Through the design of expansion joints and connecting grooves, the interlocking between the main brick bodies and the dispersion of thermal stress are achieved.
It effectively prevents individual bricks from falling off, improves thermal shock resistance, avoids chain collapses, and enhances the overall stability and thermal shock resistance of refractory materials.
Smart Images
Figure CN224254215U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of thermal shock resistant layered structure of refractory materials, specifically to a thermal shock resistant layered structure of silicon-clad corundum refractory materials. Background Technology
[0002] A silicon ladle typically refers to a ladle containing molten ferrosilicon. The inner wall of the steel shell of a silicon ladle needs to be lined with refractory material to withstand high temperatures.
[0003] Currently, many refractory materials on the market are laid directly on the inner wall of the steel shell of the silicon cladding. The structure is relatively simple, which makes it easy for single bricks to fall off and cause a chain collapse. Moreover, the thermal shock resistance is not ideal and needs to be improved.
[0004] Therefore, we proposed a thermal shock resistant layered structure for silicon-clad corundum refractory materials to address the problems mentioned above. Utility Model Content
[0005] The purpose of this invention is to address the problem that many current refractory materials are simply laid on the inner wall of the steel shell of the silicon cladding, resulting in a relatively simple structure that is prone to single brick detachment leading to a chain reaction of collapses, and their thermal shock resistance is not ideal, thus requiring improvement.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a thermal shock resistant layered structure for silicon-clad corundum refractory material, characterized in that it comprises: a main brick body, the main brick body including a working layer, a first thermal shock resistant buffer layer provided on the lower surface of the working layer, a first support layer provided on the lower surface of the first thermal shock resistant buffer layer, and a heat insulation layer provided on the lower surface of the first support layer.
[0007] Connecting blocks are installed on the side of the main brick body;
[0008] The connecting groove is located on the other side of the main brick body.
[0009] Furthermore, expansion joints are provided between the working layer and the first thermal shock resistant buffer layer, between the first thermal shock resistant buffer layer and the first support layer, and between the first support layer and the insulation layer.
[0010] Furthermore, the connecting groove includes two symmetrical notches, the first thermal shock resistant buffer layer and the first support layer correspond to the notches, and the distance between the two ends of the connecting block and the two ends of the main brick body is equal to the interval between the two notches.
[0011] Furthermore, the connecting block includes a second thermal shock resistant buffer layer, and a second support layer is provided on the lower surface of the second thermal shock resistant buffer layer.
[0012] Furthermore, the working layer is made of corundum brick material.
[0013] Furthermore, both the first and second thermal shock resistant buffer layers are made of mullite brick material.
[0014] Furthermore, both the first support layer and the second support layer are made of dense clay brick material.
[0015] Furthermore, the insulation layer is made of fire-resistant fiberboard.
[0016] The beneficial effects of this utility model are as follows: By setting connecting blocks on the side of the main brick body and connecting grooves on the other side of the main brick body, and making the distance between the two ends of the connecting blocks and the two ends of the main brick body equal to the interval between the two grooves, when the main brick body is laid, multiple main brick bodies can be interlocked through the cooperation of the connecting blocks and connecting grooves to prevent single bricks from falling off and causing chain collapse. Moreover, they can be laid in an alternating manner, transforming continuous vertical joints into discontinuous distributions, so that thermal expansion stress is dispersed in multiple directions at the brick joints, avoiding thermal stress concentration, thereby improving thermal shock resistance. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the thermal shock resistant layered structure of the silicon-clad corundum refractory material of this utility model;
[0018] Figure 2 This is a schematic diagram of the laying structure of the thermal shock resistant layered structure of the silicon-clad corundum refractory material of this utility model;
[0019] Figure 3 This is a schematic diagram of the main structure of the thermal shock resistant layered structure of the silicon-clad corundum refractory material of this utility model;
[0020] Figure 4 This is a cross-sectional schematic diagram of the thermal shock resistant layered structure of the silicon-clad corundum refractory material of this utility model.
[0021] The names corresponding to each mark in the diagram:
[0022] 1. Main brick body; 2. Working layer; 3. First thermal shock resistant buffer layer; 4. First support layer; 5. Insulation layer; 6. Connecting block; 7. Expansion strip; 8. Groove; 9. Second thermal shock resistant buffer layer; 10. Second support layer. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.
[0024] Embodiments of this utility model:
[0025] like Figures 1-4 As shown, this utility model provides a thermal shock resistant layered structure for silicon-clad corundum refractory material, including a main brick body 1, a connecting block 6, and a connecting groove. The main brick body 1 includes a working layer 2, which is made of corundum brick material. This arrangement enhances the impermeability and erosion resistance of the main brick body 1. A first thermal shock resistant buffer layer 3 is provided on the lower surface of the working layer 2. A first support layer 4 is provided on the lower surface of the first thermal shock resistant buffer layer 3. An insulation layer 5 is provided on the lower surface of the first support layer 4. The insulation layer 5 is made of refractory fiberboard. This arrangement provides thermal insulation.
[0026] like Figures 1-4 As shown, the connecting block 6 is set on the side of the main brick body 1. The connecting block 6 includes a second thermal shock resistant buffer layer 9. Both the first thermal shock resistant buffer layer 3 and the second thermal shock resistant buffer layer 9 are made of mullite brick material. With this setting, the low thermal expansion coefficient and elastic modulus of mullite are significantly lower than those of corundum, so it can act as an "elastic pad" between the working layer 2 and the first support layer 4. It is easier to undergo elastic deformation and absorb the thermal stress transmitted from the working layer 2, thereby improving the thermal shock resistance. A second support layer 10 is set on the lower surface of the second thermal shock resistant buffer layer 9. Both the first support layer 4 and the second support layer 10 are made of dense clay brick material. With this setting, a solid structural support is provided for the entire main brick body 1.
[0027] The connecting groove is opened on the other side of the main brick body 1. The connecting groove includes two symmetrical notches 8. The first thermal shock buffer layer 3 and the first support layer 4 correspond to the notches 8. The distance between the two ends of the connecting block 6 and the two ends of the main brick body 1 is equal to the interval between the two notches 8. This allows multiple main brick bodies 1 to interlock through the cooperation of the connecting block 6 and the connecting groove, preventing single bricks from falling off and causing a chain collapse. It also allows for staggered construction, transforming continuous vertical joints into discontinuous distributions, so that thermal expansion stress is dispersed in multiple directions at the brick joints, avoiding thermal stress concentration, thereby improving thermal shock resistance.
[0028] like Figures 1-4 As shown, expansion joints 7 are provided between the working layer 2 and the first thermal shock buffer layer 3, between the first thermal shock buffer layer 3 and the first support layer 4, and between the first support layer 4 and the insulation layer 5. This arrangement provides space to compensate for expansion differences and avoids thermal expansion restrictions that could lead to interlayer compression cracking.
Claims
1. A thermal shock resistant layered structure for silicon-clad corundum refractory material, characterized in that, include: The main brick body (1) includes a working layer (2), a first thermal shock resistant buffer layer (3) is provided on the lower surface of the working layer (2), a first support layer (4) is provided on the lower surface of the first thermal shock resistant buffer layer (3), and a heat insulation layer (5) is provided on the lower surface of the first support layer (4). Connecting block (6) is set on the side of the main brick body (1); The connecting groove is located on the other side of the main brick body (1).
2. The thermal shock resistant layered structure of silicon-clad corundum refractory material according to claim 1, characterized in that: Expansion strips (7) are provided between the working layer (2) and the first thermal shock buffer layer (3), between the first thermal shock buffer layer (3) and the first support layer (4), and between the first support layer (4) and the insulation layer (5).
3. The thermal shock resistant layered structure of silicon-clad corundum refractory material according to claim 1, characterized in that: The connecting groove includes two symmetrical notches (8), the first thermal shock resistant buffer layer (3) and the first support layer (4) correspond to the notches (8), and the distance between the two ends of the connecting block (6) and the two ends of the main brick body (1) is equal to the interval between the two notches (8).
4. The thermal shock resistant layered structure of silicon-clad corundum refractory material according to claim 3, characterized in that: The connecting block (6) includes a second thermal shock resistant buffer layer (9), and a second support layer (10) is provided on the lower surface of the second thermal shock resistant buffer layer (9).
5. The thermal shock resistant layered structure of silicon-clad corundum refractory material according to claim 1, characterized in that: The working layer (2) is made of corundum brick material.
6. The thermal shock resistant layered structure of the silicon-clad corundum refractory material according to claim 4, characterized in that: Both the first thermal shock resistant buffer layer (3) and the second thermal shock resistant buffer layer (9) are made of mullite brick material.
7. The thermal shock resistant layered structure of silicon-clad corundum refractory material according to claim 4, characterized in that: Both the first support layer (4) and the second support layer (10) are made of dense clay brick material.
8. The thermal shock resistant layered structure of the silicon-clad corundum refractory material according to claim 1, characterized in that: The insulation layer (5) is made of fire-resistant fiberboard.