CN211866588U - Steel ladle with stepped ladle bottom - Google Patents
Steel ladle with stepped ladle bottom Download PDFInfo
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- CN211866588U CN211866588U CN202020046147.5U CN202020046147U CN211866588U CN 211866588 U CN211866588 U CN 211866588U CN 202020046147 U CN202020046147 U CN 202020046147U CN 211866588 U CN211866588 U CN 211866588U
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Abstract
The application provides a ladle with a stepped ladle bottom, which comprises a ladle shell, wherein a ladle bottom high-level area, a first transition brick, a ladle bottom middle-level area, a second transition brick and a ladle bottom low-level area are sequentially arranged on the inner wall of the bottom of the ladle shell from high to low, and a water outlet is formed in the ladle bottom low-level area; the ladle bottom high-level area is formed by building a plurality of high-level bricks, the ladle bottom middle-level area is formed by building a plurality of middle-level bricks, and the ladle bottom low-level area is formed by building a plurality of low-level bricks; the height of the high-position brick is higher than that of the middle-position brick, and the height of the middle-position brick is higher than that of the low-position brick; the first transition brick and the second transition brick are both wedge-shaped bricks; the ladle bottom structure is arranged in a step shape, so that height difference is generated, kinetic energy of molten steel is increased, and the flowability of the molten steel is improved; meanwhile, the wedge-shaped bricks are used between the two regions, so that the residual quantity of molten steel can be effectively reduced.
Description
Technical Field
The application relates to the field of steelmaking equipment, in particular to a steel ladle with a stepped ladle bottom.
Background
The ladle, also known as ladle and ladle, is one of the important equipments for steel making, and is mainly used in steel plants for receiving molten steel and casting in electric furnaces or converters for steel smelting. And during tapping, molten steel is directly poured into a ladle, and during casting, the molten steel flows out from a water outlet at the bottom. The ladle generally comprises a ladle shell and a working layer arranged on the inner side wall of the ladle shell, wherein the working layer comprises a ladle bottom working layer and a ladle wall working layer.
The steel ladle bottom working layer is manufactured by building bricks on the inner wall of the bottom of the steel ladle shell, wherein the bricks are made of refractory materials. The bricks are generally of the same size and therefore the height of the bottom working layer is uniform. In the later period of steel ladle molten steel pouring, the amount of molten steel is small, the molten steel has low kinetic energy and poor liquidity at a position far away from a steel ladle water outlet, and the molten steel is difficult to flow to the position of the water outlet, so that molten steel with the tonnage of 1-2% of the steel ladle can be remained in each steel ladle, and the molten steel can only be poured out along with steel slag and then recovered in a slag yard. Molten steel in the ladle cannot be fully utilized, so that waste of raw materials is caused, and the production cost is increased.
Therefore, how to change the structure of the bottom working layer of the ladle, increase the fluidity of the molten steel, reduce the residual quantity of the molten steel and reduce unnecessary waste is a problem which needs to be solved urgently.
SUMMERY OF THE UTILITY MODEL
The application provides a ladle with a stepped ladle bottom, and aims to solve the problems that in the later period of ladle molten steel pouring, the kinetic energy of molten steel is low and the flowability is poor at a position far away from a water outlet of the ladle, and the residual problem can be generated.
The application provides a ladle that ladle bottom is echelonment includes: the ladle shell is provided with a ladle bottom high-level area, a first transition brick, a ladle bottom middle-level area, a second transition brick and a ladle bottom low-level area from high to low in sequence on the inner wall of the bottom of the ladle shell; and a water outlet is formed in the lower area of the ladle bottom.
Optionally, the ladle bottom high-level region is formed by building a plurality of high-level bricks, the ladle bottom middle-level region is formed by building a plurality of middle-level bricks, and the ladle bottom low-level region is formed by building a plurality of low-level bricks.
Optionally, the height of the high-position brick is higher than that of the middle-position brick, and the height of the middle-position brick is higher than that of the low-position brick.
Optionally, the first transition brick and the second transition brick are both wedge-shaped bricks.
Optionally, the length of the side of the first transition brick close to the bottom neutral area is the same as the height of the neutral brick, and the length of the side of the first transition brick close to the bottom high area is the same as the height of the high brick; the side length of one side of the second transition brick, which is close to the lower region of the ladle bottom, is the same as the height of the lower brick, and the side length of one side of the second transition brick, which is close to the middle region of the ladle bottom, is the same as the height of the middle brick.
Optionally, the protective layer is located on the upper surface of the ladle bottom high-level region, the ladle bottom middle-level region and the upper surface of the ladle bottom low-level region.
Optionally, the ladle shell further comprises a ladle wall working layer, and the ladle wall working layer is located on the inner wall of the side face of the ladle shell.
Optionally, the wall wrapping working layer is formed by building a plurality of wall wrapping bricks.
According to the technical scheme, the steel ladle with the stepped ladle bottom comprises a steel ladle shell, wherein a ladle bottom high-level area, a first transition brick, a ladle bottom middle-level area, a second transition brick and a ladle bottom low-level area are sequentially arranged on the inner wall of the bottom of the steel ladle shell from high to low, and a water outlet is formed in the ladle bottom low-level area. The ladle bottom high-level area is formed by building a plurality of high-level bricks, the ladle bottom middle-level area is formed by building a plurality of middle-level bricks, and the ladle bottom low-level area is formed by building a plurality of low-level bricks. The height of the high-position bricks is higher than that of the middle-position bricks, and the height of the middle-position bricks is higher than that of the low-position bricks. The first transition brick and the second transition brick are both wedge-shaped bricks. The ladle bottom structure is arranged in a step shape, so that the height difference is generated, the kinetic energy of molten steel is increased, and the flowability of the molten steel is improved; meanwhile, the wedge-shaped bricks are used between the two regions, so that the two heights are in smooth transition, and the residual quantity of molten steel can be effectively reduced.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without any creative effort.
Fig. 1 is a schematic structural diagram of a ladle with a stepped ladle bottom provided in an embodiment of the present application.
Description of reference numerals:
1. a ladle shell; 2. a bottom high-level region; 21. high-level bricks; 3. a bottom-of-packet median region; 31. a middle position brick; 4. a bottom-covered low-level region; 41. low-position bricks; 5. a first transition brick; 6. a second transition brick; 7. a water outlet; 8. a protective layer; 9. a wall-wrapping working layer; 91. and (5) wall covering bricks.
Detailed Description
To make the objects, technical solutions and advantages of the exemplary embodiments of the present application clearer, the technical solutions in the exemplary embodiments of the present application will be clearly and completely described below with reference to the drawings in the exemplary embodiments of the present application, and it is obvious that the described exemplary embodiments are only a part of the embodiments of the present application, but not all the embodiments.
The ladle is one of important steel-making equipment, and is mainly used for receiving molten steel and pouring in an electric furnace or a converter for steel smelting in a steel plant. The ladle generally comprises a ladle shell and a working layer arranged on the inner side wall of the ladle shell, wherein the working layer comprises a ladle bottom working layer and a ladle wall working layer. The bottom working layer of the steel ladle is generally arranged to be a plane, the molten steel amount is less in the later period of steel ladle molten steel pouring, and the molten steel has low kinetic energy and poor liquidity at a position far away from a steel ladle water outlet, is not easy to flow to the position of the water outlet, and can generate molten steel residue. In view of the above problems, the embodiments of the present application provide a new technical solution to improve a ladle bottom structure of a ladle, and the specific implementation manner thereof is as follows.
Referring to fig. 1, the present embodiment provides a ladle with a stepped ladle bottom, including a ladle shell 1, and a ladle bottom high-level region 2, a first transition brick 5, a ladle bottom middle-level region 3, a second transition brick 6, and a ladle bottom low-level region 4 are sequentially disposed from high to low on an inner wall of the bottom of the ladle shell 1.
The ladle shell 1 can be a barrel formed by riveting or welding steel plates with the thickness of 20-45 mm, and a certain number of exhaust holes are drilled in the ladle shell 1 so as to remove moisture in refractory materials when a ladle is baked.
In this embodiment, the ratio of the widths of the ladle bottom high-level region 2, the ladle bottom middle-level region 3 and the ladle bottom low-level region 4 to the diameter of the ladle shell 1 is 1:1:1, and other ratios can be set according to actual production and use requirements.
The ladle bottom low-level area 4 is provided with a water outlet 7, and the water outlet 7 is positioned at the lowest part of the ladle bottom of the ladle, so that molten steel can flow out more easily.
Optionally, the ladle bottom high-level region 2 is formed by building a plurality of high-level bricks 21, the ladle bottom middle-level region 3 is formed by building a plurality of middle-level bricks 31, and the ladle bottom low-level region 4 is formed by building a plurality of low-level bricks 41. Compared with the method of integral casting, the quality control can be enhanced in the production process by using the precast bricks for masonry, the adverse effect of field human and low-temperature environmental factors on the integral casting construction is reduced, meanwhile, the stress in the integral casting process is better eliminated by adopting the ladle bottom of the precast bricks, the cracking is less in the using process, and the precast bricks are not easy to peel off.
The high-position bricks 21, the middle-position bricks 31 and the low-position bricks 41 are all made of refractory materials, including magnesia carbon bricks, alumina-magnesia carbon bricks and the like, and can not generate the phenomenon of melting and softening under the condition of high temperature and resist the thermal shock of molten steel and the erosion of slag.
Optionally, the height of the high-position brick 21 is higher than that of the middle-position brick 31, the height of the middle-position brick 31 is higher than that of the low-position brick 41, and the effect of the bottom-wrapping stepped structure can be achieved only by adopting a vertical building mode.
Optionally, the first transition brick 5 and the second transition brick 6 are both wedge-shaped bricks, including but not limited to an equal-thickness wedge-shaped brick with a right-angled trapezoid side, and the first transition brick 5 and the second transition brick 6 may be made of magnesia carbon brick, alumina carbon brick, or other refractory materials.
Optionally, the length of the first transition brick 5 on the side close to the bottom middle area 3 is the same as the height of the middle brick 31, and the length of the first transition brick 5 on the side close to the bottom high area 2 is the same as the height of the high brick 21. The side length of the second transition brick 6 close to the lower area 4 of the ladle bottom is the same as the height of the lower brick 41, and the side length of the second transition brick 6 close to the middle area 3 of the ladle bottom is the same as the height of the middle brick 31. The first transition brick 5 and the second transition brick 6 are positioned between the two areas to play a bearing role, and meanwhile, the residual quantity of molten steel between the two areas can be effectively reduced.
Optionally, the protective layer 8 is further included, and the protective layer 8 is located on the upper surfaces of the bottom-wrapping high-level region 2, the bottom-wrapping middle-level region 3 and the bottom-wrapping low-level region 4; the protective layer 8 is formed by pouring refractory materials such as corundum castable and the like, and the thickness of the protective layer 8 is consistent; the protective layer 8 can resist strong scouring and erosion of molten steel and steel slag, and the service life of bottom-covering bricks in each area is prolonged.
Optionally, the ladle wall structure further comprises a ladle wall working layer 9, and the ladle wall working layer 9 is located on the inner wall of the side surface of the ladle shell 1. The ladle wall working layer 9 can prevent the ladle shell 1 from directly contacting with molten steel and steel slag, and meanwhile, the service life of the ladle can be prolonged by properly increasing the thickness of the ladle wall working layer 9.
Optionally, the wall covering brick 91 is further included, the wall covering working layer 9 is formed by building a plurality of wall covering bricks 91, and the wall covering bricks 91 can be bricks made of refractory materials such as high-alumina bricks, zircon bricks and alumina-magnesia carbon bricks, and have high temperature resistance and corrosion resistance.
According to the technical scheme, the steel ladle with the stepped ladle bottom comprises a steel ladle shell 1, wherein a ladle bottom high-level area 2, a first transition brick 5, a ladle bottom middle-level area 3, a second transition brick 6 and a ladle bottom low-level area 4 are sequentially arranged on the inner wall of the bottom of the steel ladle shell from high to low, and a water outlet 7 is formed in the ladle bottom low-level area 4. The ladle bottom high-level area 2 is formed by building a plurality of high-level bricks 21, the ladle bottom middle-level area 3 is formed by building a plurality of middle-level bricks 31, and the ladle bottom low-level area 4 is formed by building a plurality of low-level bricks 41. The height of the high bricks 21 is higher than that of the middle bricks 31, and the height of the middle bricks 31 is higher than that of the low bricks 41. The first transition brick 5 and the second transition brick 6 are both wedge-shaped bricks.
According to the ladle bottom structure, the ladle bottom structure is arranged in a step shape, so that the height difference is generated, the kinetic energy of molten steel is increased, the liquidity of the molten steel is improved, and the molten steel far away from the water outlet 7 can be sufficiently discharged; meanwhile, the wedge-shaped brick is arranged between the two areas, so that the two heights are in smooth transition, and the residual quantity of molten steel can be effectively reduced.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A ladle with a stepped ladle bottom is characterized by comprising: a ladle casing (1), wherein,
a ladle bottom high-level area (2), a first transition brick (5), a ladle bottom middle-level area (3), a second transition brick (6) and a ladle bottom low-level area (4) are sequentially arranged on the inner wall of the bottom of the ladle shell (1) from high to low;
the ladle bottom low-level area (4) is provided with a water outlet (7).
2. The ladle with the stepped ladle bottom according to claim 1, wherein the ladle bottom high-level area (2) is formed by building a plurality of high-level bricks (21), the ladle bottom middle-level area (3) is formed by building a plurality of middle-level bricks (31), and the ladle bottom low-level area (4) is formed by building a plurality of low-level bricks (41).
3. Ladle with stepped ladle bottom according to claim 2, characterised in that the height of the high bricks (21) is higher than the height of the middle bricks (31), and the height of the middle bricks (31) is higher than the height of the low bricks (41).
4. A ladle with a stepped ladle bottom according to claim 3, wherein the first transition brick (5) and the second transition brick (6) are wedge-shaped bricks.
5. The ladle with the stepped ladle bottom according to claim 4, wherein the side length of the first transition brick (5) close to the ladle bottom median region (3) is the same as the height of the median brick (31), and the side length of the first transition brick (5) close to the ladle bottom high region (2) is the same as the height of the high brick (21); the side length of one side, close to the ladle bottom low-level region (4), of the second transition brick (6) is the same as the height of the low-level brick (41), and the side length of one side, close to the ladle bottom middle-level region (3), of the second transition brick (6) is the same as the height of the middle-level brick (31).
6. The ladle with the stepped ladle bottom according to claim 1, further comprising a protective layer (8), wherein the protective layer (8) is positioned on the upper surfaces of the ladle bottom high-level region (2), the ladle bottom middle-level region (3) and the ladle bottom low-level region (4).
7. The ladle with the stepped ladle bottom according to claim 1, further comprising a ladle wall working layer (9), wherein the ladle wall working layer (9) is positioned on the inner wall of the side surface of the ladle shell (1).
8. The ladle with the stepped ladle bottom according to claim 7, further comprising wall bricks (91), wherein the wall working layer (9) is built by a plurality of the wall bricks (91).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020046147.5U CN211866588U (en) | 2020-01-15 | 2020-01-15 | Steel ladle with stepped ladle bottom |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020046147.5U CN211866588U (en) | 2020-01-15 | 2020-01-15 | Steel ladle with stepped ladle bottom |
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| CN211866588U true CN211866588U (en) | 2020-11-06 |
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| CN202020046147.5U Active CN211866588U (en) | 2020-01-15 | 2020-01-15 | Steel ladle with stepped ladle bottom |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115301936A (en) * | 2022-08-08 | 2022-11-08 | 阳春新钢铁有限责任公司 | Steel ladle bottom building process capable of reducing steel ladle residual steel |
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2020
- 2020-01-15 CN CN202020046147.5U patent/CN211866588U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115301936A (en) * | 2022-08-08 | 2022-11-08 | 阳春新钢铁有限责任公司 | Steel ladle bottom building process capable of reducing steel ladle residual steel |
| CN115301936B (en) * | 2022-08-08 | 2024-03-19 | 阳春新钢铁有限责任公司 | Ladle bottom masonry process for reducing residual steel of ladle |
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