Masonry structure for torpedo ladle end refractory bricks
By designing a masonry structure of high-temperature resistant clay brick wall, high-temperature resistant coating and aluminum silicon carbide brick wall at the end of the torpedo can, the problem of iron seepage and insufficient strength in the gap of the torpedo can end is solved, and higher fire resistance and service life are achieved, and the accident rate is reduced.
Patent Information
- Application Number
- CN202422164397.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-04
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-09-04
AI Technical Summary
The gap between the refractory bricks at the end of the torpedo tank is prone to iron seepage, causing the tank shell to burn through, affecting production safety and efficiency. The existing plastic ramming technology is used in this area with problems of inappropriate strength and poor stability.
A masonry structure is designed, including cans symmetrically welded on the left and right ends of the torpedo can. The inside of the can is equipped with high-temperature resistant aluminum silicon carbide brick walls, high-temperature resistant clay brick walls and high-temperature resistant coatings from the inside to the outside. These materials enhance the strength and stability of the end gap through specific thicknesses and structures.
By setting up high-temperature resistant clay brick walls, high-temperature resistant coatings and aluminum silicon carbide brick walls, the overall strength and fire resistance of the torpedo can ends are significantly improved, the problems of iron seepage and insufficient strength are solved, the service life of the torpedo can is extended, and the accident rate is reduced.
Smart Images
Figure CN223028468U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lining masonry structures, and more specifically, to a masonry structure for refractory bricks at the end of a torpedo ladle. Background Art
[0002] During the operation and production process of a steel plant, the torpedo ladle car is a commonly used transportation equipment for transporting molten iron. The main raw material of the torpedo ladle lining is refractory material. The torpedo ladle shell plays a role in protecting and supporting the refractory material inside the ladle. During operation, the connection at the end of the torpedo ladle is weak, and iron leakage often occurs, resulting in accidents. There is a problem of the shell being burned through. High-temperature molten iron will first spread and erode between the shell and the refractory bricks, causing the steel shell to burn out. If the correct technical treatment is not carried out on this end, accidents will occur during the later use process, affecting the connection efficiency of the normal iron-steel interface process, causing difficulties in production organization, and affecting normal production. This problem is quite difficult to solve and urgently requires the application of technology to improve this situation.
[0003] Currently, the most similar end masonry application technology used in steel plants is to use plastic mass to be tamped firmly. This technology can be widely used for the connection problem between the refractory bricks at the end of the torpedo ladle and the cone ring area, which is an important means to extend the ladle life. However, it must be tamped firmly. The refractory materials used for the plastic mass are also different, and the viscosity of the plastic mass is crucial for the success of the tamping masonry technology.
[0004] However, the existing technology requires the gap to be tamped with a thickness of only 200 mm and an area of about 1 square meter, and the area where it is located is not easy to be tamped firmly. Conventional plastic mass needs to be adjusted, and there are often situations where the strength is inappropriate and the stability is poor, which requires on-site adjustment. More importantly, especially during the turnover process of the torpedo ladle at the later stage, sufficient sintering strength cannot be guaranteed at the end, and it cannot withstand the thermal expansion extrusion of the refractory bricks inside the ladle after being heated. Therefore, using plastic mass to tamp the gap at the end of the torpedo ladle can no longer meet the current production organization, and there are many problems when in use.
[0005] The utility model can solve the problem of iron leakage in the gap between the refractory bricks at the end of the torpedo ladle, achieve the safe use of refractories, improve the service life of refractory materials, and reduce the accident rate. Summary of the Invention
[0006] The purpose of the utility model is to solve the technical problems proposed in the above background art and provide a masonry structure for refractory bricks at the end of a torpedo ladle.
[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a masonry structure of refractory bricks for the end of a torpedo tank, comprising: a torpedo tank, wherein the left and right ends of the torpedo tank are symmetrically welded with cans, and the interior of the can is sequentially provided with high-temperature resistant aluminum silicon carbide brick walls, high-temperature resistant clay brick walls, and high-temperature resistant coatings from the inside to the outside, wherein the high-temperature resistant aluminum silicon carbide brick walls contain aluminum silicon carbide bricks, the high-temperature resistant clay brick walls contain dense clay bricks, and the high-temperature resistant coatings contain coatings.
[0008] A further preferred embodiment: the dense clay brick has a length of 120 mm and a thickness of 80 mm.
[0009] A further preferred solution: the aluminum silicon carbide brick has a length of 420 mm, a thickness of 75 mm, and a width of 200 mm, and the aluminum silicon carbide brick is a high temperature resistant brick.
[0010] A further preferred solution: the high temperature resistant coating is made of a coating, and the material of the coating is aluminum silicon carbide.
[0011] A further preferred solution: the can steel shell is an arc-conical structure with a thickness of 30 mm.
[0012] A further preferred solution: the high temperature resistant aluminum silicon carbide brick wall is made of aluminum silicon carbide bricks.
[0013] A further preferred solution: the high temperature resistant clay brick wall is made of dense clay bricks. Beneficial Effects
[0014] 1. By setting up a high-temperature resistant clay brick wall and laying it with dense clay bricks, the overall strength of the refractory material structure is higher, the refractory brick working layer is well supported, and the ability of the working layer to resist thermal vibration is effectively absorbed, which improves the service life of the torpedo tank, thereby effectively solving the problem of iron infiltration and lack of strength at the end of the existing torpedo tank;
[0015] 2. By setting a high temperature resistant coating material, and the high temperature resistant coating material is made of aluminum silicon carbide, the end gap can be better compacted, making the density higher and the strength significantly improved after hardening;
[0016] 3. By setting aluminum silicon carbide bricks, silicon refractory bricks are high temperature resistant bricks that directly contact high temperature molten iron;
[0017] 4. In summary, a masonry structure for refractory bricks at the end of a torpedo tank, by providing a high-temperature resistant clay brick wall, a high-temperature resistant coating and other structures, can solve the problem of iron seepage in the gaps between the refractory bricks at the end of the torpedo tank, thereby achieving the safe use of refractory materials, increasing the service life of refractory materials and reducing the accident rate. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the overall structure of the present utility model.
[0019] Figure 2 This is a schematic diagram of the overall structure of the half-sectioned can of the present utility model.
[0020] Figure 3 This is the Figure 2 top view structure schematic diagram of the present utility model.
[0021] Figure 4 This is the Figure 3 structural decomposition schematic diagram of the present utility model.
[0022] Figures 1-4 In the figure: 1 - torpedo ladle, 2 - can, 3 - high-temperature coating material, 4 - high-temperature clay brick wall, 5 - high-temperature aluminum silicon carbide brick wall, 6 - aluminum silicon carbide brick, 7 - dense clay brick, 8 - coating material. Specific embodiments
[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the attached Figures 1-4 drawings in the embodiments of the present utility model.
[0024] Please refer to Figures 1-4 , in the embodiments of the present utility model, a masonry structure for refractory bricks at the ends of a torpedo ladle includes: a torpedo ladle 1, cans 2 are symmetrically welded to the left and right ends of the torpedo ladle 1, and a high-temperature aluminum silicon carbide brick wall 5, a high-temperature clay brick wall 4, and a high-temperature coating material 3 are sequentially arranged inside the can 2 from the inside to the outside. The high-temperature aluminum silicon carbide brick wall 5 contains aluminum silicon carbide bricks 6, the high-temperature clay brick wall 4 contains dense clay bricks 7, and the high-temperature coating material 3 contains coating materials 8.
[0025] In the embodiments of the present utility model, the dense clay brick 7 has a length of 120 mm and a thickness of 80 mm, and this volume ratio is convenient for masonry.
[0026] In the embodiments of the present utility model, the aluminum silicon carbide brick 6 has a length of 420 mm, a thickness of 75 mm, and a width of 200 mm. The aluminum silicon carbide brick 6 is a high-temperature resistant brick with a relatively high refractoriness and good thermal conductivity.
[0027] In the embodiments of the present utility model, the high-temperature coating material 3 is made of the coating material 8, and the material of the coating material 8 is aluminum silicon carbide material, which can improve the wear resistance, the resistance to molten iron scouring, and the slag non-sticking property of the material.
[0028] In the embodiments of the present utility model, the steel shell of the can 2 is an arc conical structure with a thickness of 30 mm, and this thickness has relatively high strength.
[0029] In the embodiment of the present utility model, the high-temperature resistant aluminum silicon carbide brick wall 5 is made of aluminum silicon carbide bricks 6, and the high-temperature resistant aluminum silicon carbide brick wall 5 is in direct contact with hot metal.
[0030] In the embodiment of the present utility model, the high-temperature resistant fireclay brick wall 4 is made of dense fireclay bricks 7, has sufficient strength, and can be combined with the coating material at high temperature.
[0031] Working principle: In the first step, use the coating material 8 to evenly coat the periphery of the gap. After leveling, perform the coating construction. Keep the torpedo ladle 1 in this position. After the coating material 8 reaches the strength, in the second step, use the aluminum silicon carbide bricks 6 to build straight until reaching half of the position, leaving the end gap. In the third step, closely build the dense fireclay bricks 7 against the aluminum silicon carbide bricks 6, and then fill the remaining gap with the coating material 8 with moderate viscosity. Use a hammer head with a diameter of 80 mm solid metal hammer head to tamp it densely around the perimeter. The handle of the hammer head is made of iron with a length of 200 mm and a diameter of 70 mm. After an appropriate curing time, after it is fully dense and has strength, the ladle can be rotated and the other half can be built in the same way. After building, check whether there are any abnormalities in the high-temperature resistant aluminum silicon carbide brick wall 5, the high-temperature resistant coating material 3, and the high-temperature resistant fireclay brick wall 4. After confirmation, start baking online. Once the strength requirement is met, it is ready.
Claims
1. A masonry structure for refractory bricks at the end of a torpedo tank, comprising: A torpedo tank (1), characterized in that: a can (2) is symmetrically welded to the left and right ends of the torpedo tank (1); the interior of the can (2) is provided with a high-temperature resistant aluminum silicon carbide brick wall (5), a high-temperature resistant clay brick wall (4), and a high-temperature resistant coating (3) in sequence from the inside to the outside; the high-temperature resistant aluminum silicon carbide brick wall (5) is made of aluminum silicon carbide brick (6); the high-temperature resistant clay brick wall (4) is made of dense clay brick (7); and the high-temperature resistant coating (3) is made of coating (8).
2. A masonry structure of refractory bricks for torpedo tank ends according to claim 1, characterized in that: The dense clay brick (7) has a length of 120 mm and a thickness of 80 mm.
3. The masonry structure of refractory bricks for torpedo tank ends according to claim 1, characterized in that: The aluminum silicon carbide brick (6) has a length of 420 mm, a thickness of 75 mm and a width of 200 mm. The aluminum silicon carbide brick (6) is a high temperature resistant brick.
4. The masonry structure of refractory bricks for torpedo tank ends according to claim 1, characterized in that: The material of the coating material (8) is aluminum silicon carbide.
5. The masonry structure of refractory bricks for torpedo tank ends according to claim 1, characterized in that: The steel shell of the can (2) is an arc-conical structure with a thickness of 30 mm.