Steel ladle opening structure
By introducing a conical ring plate and high-strength castable into the ladle opening structure, the problem of ladle opening damage during slag removal was solved, achieving long service life and efficient turnover of the ladle opening, and reducing material and labor costs.
Patent Information
- Application Number
- CN202520056398.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-10
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-01-10
AI Technical Summary
The existing ladle opening structure is easily damaged during the slag removal process, which causes the ladle opening bricks to loosen, affecting the lifespan and turnover efficiency of the ladle and increasing material and labor costs.
A conical ring plate and high-strength castable are introduced into the ladle opening structure. The ladle opening bricks and the pressure iron blocks do not come into direct contact. The space between the conical ring plate and the ladle shell is filled with castable to protect the pressure iron blocks from damage. The conical ring plate, castable, and pressure iron blocks can be reused as a whole.
This improves the service life and turnover efficiency of the ladle opening, reduces the number of repairs, saves material and labor costs, and extends the service life of the ladle.
Smart Images
Figure CN223670207U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to steel smelting equipment technical field, especially a ladle mouth structure. BACKGROUND
[0002] The ladle is the container that carries and holds molten steel in the process of steel smelting from tapping to casting, and the life and turnover efficiency of the ladle directly affect the rhythm of steelmaking.
[0003] Molten steel produces steel slag in the ladle, and the slag line position near the ladle mouth can cause chemical and physical erosion to the material, so the operator inserts the steel hook into the slag layer, then hooks up the steel slag, makes it adhere to the steel hook, and then pulls out the steel hook from the ladle mouth to clean up the steel slag. At present, the structure of the ladle mouth is that the iron block is directly pressed above the mouth brick, and then the castable is covered, but in the process of hooking slag, the steel slag can easily damage the mouth brick, the castable and the iron block pressing the mouth brick at the ladle mouth, causing the mouth brick to lose pressure and loosen, and then the top of the lining brick built inside the ladle loses sufficient pressure, and the lining brick expands during the smelting process, which can cause upward movement, resulting in the formation of a serious ring gap in the ladle lining, and the molten steel entering the gap can damage the internal materials of the ladle, which needs to be repaired in time to continue to use, reducing the service life of the ladle, affecting the turnover efficiency of the ladle, causing waste of iron plate and lining material, and increasing labor. SUMMARY
[0004] The utility model aims at providing a ladle mouth structure to solve the problems existing in the prior art, improve the service time of the ladle mouth, improve the service life of the ladle, reduce the turnover time of the ladle, and improve the production efficiency.
[0005] To achieve the above-mentioned purpose, the utility model provides the following scheme:
[0006] The utility model provides a ladle mouth structure, which comprises a ladle shell, a mouth brick, a conical ring iron plate, an iron block and a castable in the ladle shell, the large end port of the conical ring iron plate is fixedly connected with the inner side wall of the ladle shell, the axis of the conical ring iron plate is collinear with the center line of the ladle shell, there is a first gap between the outer side wall of the conical ring iron plate and the inner side wall of the ladle shell, the iron block is arranged in the first gap, one end of the iron block is fixedly connected with the inner side wall of the ladle shell, and the other end is fixedly connected with the outer side wall of the conical ring iron plate, the mouth brick is arranged above the lining brick inside the ladle, there is a second gap between the mouth brick and the inner side wall of the conical ring iron plate, and the first gap and the second gap are filled with the castable.
[0007] Preferably, the ladle shell comprises a shell body and a flange ring, and the flange ring is fixedly connected with the top of the shell body.
[0008] Preferably, the mouth brick is a magnesite carbon brick.
[0009] Preferably, the conical ring iron plate is integrally formed or is spliced by a plurality of independent arc-shaped plates.
[0010] Preferably, the included angle between the generatrix of the conical ring iron plate and its own axis is 40-50°.
[0011] Preferably, the included angle between the generatrix of the conical ring iron plate and its own axis is 45°.
[0012] Preferably, the mouth brick is a wedge-shaped brick.
[0013] Preferably, a plurality of the mouth bricks are uniformly and circumferentially spaced along the conical ring iron plate, or a plurality of the mouth bricks can be spliced into a circular ring.
[0014] Preferably, the thickness of the pressing iron block is 10-15mm.
[0015] Preferably, a plurality of the pressing iron blocks are uniformly arranged along the conical ring iron plate in the circumferential direction, and the spacing between two adjacent pressing iron blocks is 300-500mm.
[0016] The present application has the following technical effects compared with the prior art:
[0017] The present application provides a steel ladle mouth structure, a conical ring iron plate is arranged between the mouth brick and the pressing iron block, that is, the mouth brick and the pressing iron block do not directly contact, and the pressing iron block is arranged in the first gap between the outer side wall of the conical ring iron plate and the inner side wall of the steel ladle shell and is filled with castable, in the process of slagging and hooking slag, the conical ring iron plate can protect the pressing iron block from being damaged, ensure that the upper part of the mouth brick can always bear pressure, reduce the probability of loosening of the upper part of the mouth brick, reduce the repair frequency of the steel ladle lining, and improve the service life of the steel ladle; when the mouth brick and the castable in the second gap are damaged by steel slag and need to be repaired, the conical ring iron plate, the castable in the first gap and the pressing iron block are used as a whole, do not need to be removed together with the mouth brick, can be repeatedly used, only the new mouth brick needs to be replaced, the turnover efficiency of the steel ladle is improved, and the cost of manpower and materials is saved. BRIEF DESCRIPTION OF DRAWINGS
[0018] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.
[0019] Figure 1It is a sectional view of the ladle mouth structure;
[0020] Figure 2 It is a schematic view of the ladle mouth structure with the ladle mouth bricks arranged at intervals;
[0021] Figure 3 It is a top view of the ladle mouth structure with the ladle mouth bricks arranged at intervals;
[0022] Figure 4 It is a schematic view of the ladle mouth structure with the ladle mouth bricks arranged into a ring;
[0023] Figure 5 It is a top view of the ladle mouth structure with the ladle mouth bricks arranged into a ring;
[0024] Figure 6 It is a schematic view of the structure of the ladle mouth brick.
[0025] In the figure: 1-ladle shell; 2-ladle mouth brick; 3-tapered ring iron plate; 4-pressing iron block; 5-pouring material; 6-shell body; 7-flange ring; 8-ladle lining brick; 9-top surface; 10-bottom surface; 11-front end surface; 12-rear end surface; 13-side surface; 14-inclined surface. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.
[0027] The present application provides a ladle mouth structure to solve the problems in the prior art, improve the service time of the ladle mouth, improve the service life of the ladle, reduce the turnover time of the ladle, and improve the production efficiency.
[0028] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be described in further detail below with reference to the drawings and specific embodiments.
[0029] The present application provides a ladle mouth structure, as shown in Figure 1As shown, the ladle mouth structure comprises a ladle shell 1 and a nozzle brick 2, a conical ring iron plate 3, a press iron block 4 and a casting material 5 located in the ladle shell 1, the large end of the conical ring iron plate 3 is fixedly connected with the inner side wall of the ladle shell 1, the axis of the conical ring iron plate 3 is collinear with the center line of the ladle shell 1, the outer side wall of the conical ring iron plate 3 and the inner side wall of the ladle shell 1 have a first gap, the press iron block 4 is located in the first gap, one end of the press iron block 4 is fixedly connected with the inner side wall of the ladle shell 1, and the other end is fixedly connected with the outer side wall of the conical ring iron plate 3, the nozzle brick 2 is located above the ladle lining brick 8 in the ladle, the nozzle brick 2 and the inner side wall of the conical ring iron plate 3 have a second gap, and the first gap and the second gap are filled with the high-strength casting material 5. The conical ring iron plate 3 is arranged between the nozzle brick 2 and the press iron block 4, that is, the nozzle brick 2 and the press iron block 4 are not in direct contact, and the press iron block 4 is arranged in the first gap between the outer side wall of the conical ring iron plate 3 and the inner side wall of the ladle shell 1 and filled with the high-strength casting material 5. In the process of slagging and hooking slag, the conical ring iron plate 3 can protect the press iron block 4 from being damaged, ensure that the area above the nozzle brick 2 can always bear pressure, reduce the probability of loosening of the ladle lining brick 8, reduce the repair frequency of the ladle lining, and improve the service life of the ladle. When the nozzle brick 2 and the casting material 5 in the second gap are damaged by steel slag and need to be repaired, the conical ring iron plate 3, the high-strength casting material 5 in the first gap and the press iron block 4 can be used repeatedly as a whole without being removed together with the nozzle brick 2, and only the new nozzle brick 2 needs to be replaced, thereby improving the turnover efficiency of the ladle, saving the cost of manpower and materials, and improving the economic benefit.
[0030] It is further preferred in the embodiment of the utility model that the ladle shell 1 comprises a shell body 6 and a flange ring 7, and the flange ring 7 is fixedly connected with the top of the shell body 6. The flange ring 7 can further protect the high-strength casting material 5 and the press iron block 4 in the first gap, the conical ring iron plate 3 is arranged between the flange ring 7 and the nozzle brick 2, the gap between the flange ring 7 and the nozzle brick 2 is increased, and the gap is filled with the high-strength casting material 5. In the process of hooking slag, the damage to the flange ring 7 can be reduced.
[0031] It is further preferred in the embodiment of the utility model that the nozzle brick 2 is a magnesia carbon brick.
[0032] It is further preferred in the embodiment of the utility model that the conical ring iron plate 3 is integrally formed or is spliced by a plurality of independent arc-shaped plates.
[0033] It is further preferred in the embodiment of the utility model that the included angle between the generatrix of the conical ring iron plate 3 and its own axis is 40°-50°.
[0034] It is further preferred in the embodiment of the utility model that the included angle between the generatrix of the conical ring iron plate 3 and its own axis is 45°, which can effectively transfer and disperse the pressure, and the pressure bearing capacity will be relatively good.
[0035] It is further preferred in the embodiment of the utility model that, as shown in the figure, Figure 6 The wedge-shaped brick includes a bottom surface 10, a top surface 9, a front end surface 11, a rear end surface 12, two side surfaces 13 and an inclined surface 14. The bottom surface 10 and the top surface 9 are rectangular surfaces, trapezoidal surfaces or sector surfaces. The front end surface 11 and the rear end surface 12 are arc surfaces or rectangular surfaces. The side surface 13 is a rectangular surface. The inclined surface 14 is a rectangular surface. The inclined surface 14 connects the top surface 9 and the rear end surface 12. The height of the side surface 13 close to the front end surface 11 in the vertical direction is greater than the height of the side surface 13 close to the rear end surface 12 in the vertical direction. The angle between the inclined surface 14 and the vertical surface is the same as the included angle between the generatrix of the conical ring iron plate 3 and its own axis.
[0036] It is further preferred in the embodiment of the utility model that, as shown in the figure, Figures 2-5 The plurality of closing bricks 2 are uniformly and intervally arranged along the circumferential direction of the conical ring iron plate 3. The closing bricks 2 are intervally arranged, which facilitates quick replacement when the closing bricks 2 are eroded by the steel slag. The plurality of closing bricks 2 can be spliced into a ring. The closing bricks 2 spliced into a ring are more resistant to erosion and have a longer service life than the intervally arranged closing bricks 2.
[0037] It is further preferred in the embodiment of the utility model that the thickness of the pressure iron block 4 is 10-15 mm, which can provide sufficient pressure.
[0038] It is further preferred in the embodiment of the utility model that the plurality of pressure iron blocks 4 are uniformly arranged along the circumferential direction of the conical ring iron plate 3, and the spacing between the adjacent two pressure iron blocks 4 is 300-500 mm. The uniform arrangement of the pressure iron blocks 4 can avoid the situation that the local pressure is too large or too small. If the local pressure is too large, the closing brick 2 or the castable 5 may be damaged. If the local pressure is too small, the closing brick 2 cannot be fixed.
[0039] The principle and implementation mode of the utility model are described by using specific examples in the utility model. The above embodiment is only used to help understand the method and core idea of the utility model. Meanwhile, according to the idea of the utility model, the specific implementation mode and application range can be changed by the general technical personnel in the field. In conclusion, the content of the specification should not be understood as the limitation of the utility model.
Claims
1. A ladle lip structure, characterized by: The ladle shell comprises a shell body and a flange ring, and the flange ring is fixedly connected with the top of the shell body.
2. The ladle lip structure according to claim 1, characterized by: The nozzle brick is a wedge-shaped brick.
3. The ladle lip structure as recited in claim 1, wherein: The conical ring iron plate is integrally formed or is spliced by a plurality of independent arc-shaped plates.
4. The ladle lip structure as recited in claim 1 wherein: The included angle between the generatrix of the conical ring iron plate and its own axis is 40-50°.
5. The ladle lip structure as recited in claim 1, wherein: The included angle between the generatrix of the conical ring iron plate and its own axis is 45°.
6. The ladle lip structure according to claim 5, characterized by: The nozzle brick is a wedge-shaped brick.
7. The nozzle structure according to claim 1, characterized in that: A plurality of the nozzle bricks are uniformly and spacedly arranged along the circumference of the conical ring iron plate, or a plurality of the nozzle bricks can be spliced into a circular ring.
8. The ladle lip structure according to claim 7, characterized by: The thickness of the press iron block is 10-15 mm.
9. The nozzle structure according to claim 1, characterized in that: A plurality of the press iron blocks are uniformly arranged along the circumference of the conical ring iron plate, and the spacing between two adjacent press iron blocks is 300-500 mm.
10. The ladle lip structure according to claim 8, characterized by: