Fused zirconia corundum functional perforated brick
By adding a grain dense layer with a thickness of no less than 0.5 mm to the through-hole inner wall of the electro-melted zirconium corundum functional hole brick, the problem of poor corrosion resistance of the existing brick inner wall is solved and the service life is significantly improved.
Patent Information
- Application Number
- CN202520412667.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2035-03-11
AI Technical Summary
Existing electric melted zirconium corundum functional hole bricks are prone to poor corrosion resistance in glass kilns, resulting in a failure to meet expectations in service life and require frequent replacement and maintenance.
A functional hole brick of electromelted zirconium corundum is designed. The inner wall of the through hole includes a grain dense layer with a thickness of not less than 0.5 mm. The through hole is a conical hole structure with a taper diameter of 1:10~20 and a pore diameter range of 100~500 mm. The inner wall smoothly transitions to the surface of the brick main body.
By increasing the grain dense layer on the inner wall of the through hole, the penetration of corrosive substances is reduced, and the corrosion resistance is significantly enhanced, thereby extending the service life of the electromelted zirconium corundum functional hole brick.
Smart Images
Figure CN222758142U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of kiln bricks, in particular to an electric fused zirconium corundum functional hole brick. Background Art
[0002] There are many bricks with holes in the glass furnace, including fused zirconium corundum functional hole bricks, such as observation hole bricks, nozzle bricks, etc.
[0003] The central part of the fused zirconia corundum functional porous brick is generally irregular in shape and difficult to process. In addition, due to the particularity of the position and function of the fused zirconia corundum functional porous brick in the glass kiln, the fused zirconia corundum functional porous brick products formed in the prior art are prone to poor inner wall corrosion resistance, resulting in the service life of the fused zirconia corundum functional porous brick failing to meet expectations, and requiring more replacements and / or repairs during the life cycle of a glass kiln. Utility Model Content
[0004] In order to overcome the above technical problems, the purpose of the utility model is to provide a fused zirconium corundum functional porous brick to solve the problem that the existing fused zirconium corundum functional porous brick products are prone to poor inner wall corrosion resistance.
[0005] The purpose of the utility model can be achieved through the following technical solutions:
[0006] A fused zirconium corundum functional porous brick comprises a brick body, wherein the brick body comprises two opposite surfaces, a through hole is provided between the two opposite surfaces; the inner wall of the through hole comprises a grain dense layer, and the thickness of the grain dense layer is not less than 0.5.
[0007] In one solution of the present invention: the thickness of the grain dense layer is not more than 2 mm.
[0008] In one solution of the utility model: at least one end of the through hole is located in the middle of the corresponding surface of the brick body.
[0009] In one solution of the utility model: the through hole is a tapered hole structure.
[0010] In one solution of the utility model: the taper of the through hole is 1:10-20.
[0011] In one solution of the utility model: the aperture range of the through hole is 100-500 mm, and the ratio of the maximum aperture to the minimum aperture of the through hole is 5:2-3.
[0012] In one solution of the utility model: at least one end of the inner wall of the through hole smoothly transitions to the corresponding surface of the brick body.
[0013] In one solution of the utility model: the two relative surfaces are parallel to each other.
[0014] In one embodiment of the present invention, the brick body is a rectangular parallelepiped structure, the length of the brick body is 200-800 mm, the width is 200-800 mm, and the thickness is 100-400 mm.
[0015] In one embodiment of the present invention, the length-to-width ratio of the brick body is 2-3:1.
[0016] Beneficial effects of the utility model: the inner wall of the through hole of the fused zirconium corundum functional hole brick provided by the utility model includes a dense grain layer, thereby reducing corrosive substances and further enhancing the corrosion resistance of the inner wall of the through hole, thereby further improving the service life of the fused zirconium corundum functional hole brick.
[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The utility model is further described below in conjunction with the accompanying drawings.
[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;
[0020] Figure 2 It is a partially cutaway three-dimensional structural schematic diagram of the utility model;
[0021] Figure 3 It is a microstructure diagram of the main body and the grain dense layer of the brick of the utility model.
[0022] In the figure: 1. Brick body; 2. Through hole; 3. Dense grain layer. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] See also Figure 1-Figure 3A functional porous brick comprises a brick body 1, wherein the brick body 1 comprises two opposite surfaces, and a through hole 2 is provided between the two opposite surfaces. The inner wall of the through hole 2 comprises a grain dense layer 3, and the thickness of the grain dense layer 3 is not less than 0.5 mm. At different positions of the inner wall of the through hole 2, the thickness of the grain dense layer 3 may be somewhat different, but generally all should meet the above-mentioned lower limit of thickness. In the present application, the thickness of the grain dense layer 3, i.e., the size range of the portion corresponding to the thickness direction of the inner wall of the through hole 2, can be understood as the thickness direction of a position of the inner wall of the through hole 2, i.e., the direction of the perpendicular line of the section corresponding to the position of the inner wall of the through hole 2. In some embodiments of the present application, the functional porous brick may be an electrofused zirconium corundum functional porous brick.
[0025] It should be noted that the grain-dense layer 3 is the brick body part where there are basically no crystal particles with a maximum length greater than 200um (for example, corundum crystal particles, monoclinic zirconium crystal particles, corundum and zirconite eutectoid crystal particles, etc.). The inner wall of the through hole of the fused zirconium corundum functional hole brick will include crystal particles. The maximum length of these crystal particles can be directly obtained by microscopic observation. These methods should be known to those skilled in the art. Specifically, a cross section is made along the thickness direction of the through hole 2. In each cross section corresponding to the obtained grain-dense layer 3, at every 0.5 mm 2 The number of crystal particles with a maximum length greater than 200 um observed in the cross section is not greater than 2. The grain dense layer 3 is usually integrated with the rest of the brick body of the fused zirconium corundum functional porous brick.
[0026] See also Figure 3 ,in, Figure 3 The right part in the figure is the microstructure of the grain dense layer 3, and it can be seen that the density of the grain dense layer 3 is significantly higher than that of the surrounding brick body. The formation of the grain dense layer 3 on the inner wall of the through hole 2 can reduce the chance of corrosive substances (such as slag, corrosive gas or liquid) penetrating into the material, effectively preventing these substances from reacting with the components inside the brick body, thereby protecting the entire structure and enhancing the anti-corrosion performance of the inner wall of the through hole, thereby further improving the service life of the fused zirconium corundum functional hole brick.
[0027] It is understandable that the fused zirconium corundum functional porous brick can be cast by a casting mold. Specifically, during the processing and molding of the fused zirconium corundum functional porous brick, the slurry needs to be introduced into a casting mold of a suitable shape. The casting mold can generally include an outer sand mold corresponding to the shape of the outer surface of the brick material and a central sand mold core corresponding to the shape and position of the through hole 2. The inner wall of the through hole 2 can generally be formed by the part where the slurry is adjacent to the central sand mold core or directly in contact with the central sand mold core, and the inner wall of the brick body formed has a relatively finer grain size (such as Figure 3 as shown).
[0028] See also Figure 1-Figure 2 , the thickness of the grain dense layer 3 is not more than 2 mm.
[0029] See also Figure 1-Figure 2 , at least one end of the through hole 2 is located in the middle of the corresponding surface of the brick body 1. That is, one end of the through hole 2 may be located in the middle of the corresponding surface of the brick body 1, and the other end of the through hole 2 may not be located in the middle of the corresponding surface of the brick body 1. Alternatively, both ends of the through hole 2 may be located in the middle of the corresponding surface of the brick body 1.
[0030] See also Figure 1-Figure 2 , at least one end of the inner wall of the through hole 2 smoothly transitions to the corresponding surface of the brick body 1. That is, one end of the inner wall of the through hole 2 can smoothly transition to the corresponding surface of the brick body 1, and the other end of the inner wall of the through hole 2 can not smoothly transition to the corresponding surface of the brick body 1; or, both ends of the inner wall of the through hole 2 can smoothly transition to the corresponding surface of the brick body 1. The smooth transition between the inner wall of the through hole 2 and the brick body 1 improves the overall consistency.
[0031] It should be understood that the present application does not limit the specific shape of the through hole 2. For example, the through hole 2 may be a tapered hole structure, and the taper of the through hole 2 may preferably be 1:10-20, and may preferably be a conical hole structure.
[0032] See also Figure 1-Figure 2 , the aperture range of the through hole 2 can be 100~500 mm, and the ratio of the maximum aperture to the minimum aperture can be 5:2~3. It can be understood that the through hole 2 usually has a certain extension direction and can have a central axis corresponding to the extension direction. In the cross section corresponding to each position of the central axis, the distance from the inner wall of the through hole 2 to the central axis is the aperture of the through hole 2 at that position. The through hole 2 does not have to extend along a straight line, it can also extend along a curve, and the apertures corresponding to each position in its extension direction can be different.
[0033] See also Figure 1-Figure 2 The length-to-width ratio of the brick body 1 can be 2~3:1 to adapt to different installation environments. Preferably, the two relative surfaces of the brick body 1 penetrated by the through hole 2 can be parallel; the brick body 1 can be a columnar structure (for example, a rectangular structure), the size of the brick body 1 in the length direction can be 200~800 mm, the size in the width direction can be 200~800 mm, and the size in the thickness direction can be 100~400 mm.
[0034] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.
Claims
1. A fused zirconium corundum functional porous brick, characterized in that: The brick body (1) comprises two opposite surfaces, a through hole (2) is provided between the two opposite surfaces; the inner wall of the through hole (2) comprises a grain-dense layer (3), and the thickness of the grain-dense layer (3) is not less than 0.5 mm.
2. The fused zirconium corundum functional porous brick according to claim 1, characterized in that: The thickness of the grain dense layer (3) is no more than 2 mm.
3. The fused zirconium corundum functional porous brick according to claim 1, characterized in that: At least one end of the through hole (2) is located in the middle of the corresponding surface of the brick body (1).
4. The fused zirconium corundum functional porous brick according to any one of claims 1 to 3, characterized in that: The through hole (2) is a tapered hole structure.
5. The fused zirconium corundum functional porous brick according to claim 4, characterized in that: The taper of the through hole (2) is 1:10-20.
6. The fused zirconium corundum functional porous brick according to claim 4, characterized in that: The aperture range of the through hole (2) is 100-500 mm, and the ratio of the maximum aperture to the minimum aperture of the through hole (2) is 5:2-3.
7. The fused zirconium corundum functional porous brick according to any one of claims 1 to 3, characterized in that: At least one end of the inner wall of the through hole (2) smoothly transitions to the corresponding surface of the brick body (1).
8. The fused zirconium corundum functional porous brick according to claim 1, characterized in that: The two opposite surfaces are parallel to each other.
9. The fused zirconium corundum functional porous brick according to claim 1, characterized in that: The brick body (1) is a rectangular parallelepiped structure, the length direction of the brick body (1) is 200-800 mm, the width direction is 200-800 mm, and the thickness direction is 100-400 mm.
10. The fused zirconium corundum functional porous brick according to claim 9, characterized in that: The length-to-width ratio of the brick body (1) is 2-3:1.