Steel ladle with composite seat brick nozzle brick

Abstract

The utility model provides a steel ladle with a composite seating brick nozzle brick, which comprises a steel ladle cavity, a seating brick is arranged at the bottom of a cavity of the steel ladle cavity, a nozzle brick mounting cavity is arranged in the seating brick, a detachable nozzle brick is mounted in the nozzle brick mounting cavity, a molten steel runner is arranged in the nozzle brick, and the nozzle brick is arranged in the molten steel runner. The nozzle brick installation cavity is a frustum-shaped cavity with the upper portion narrow and the lower portion wide, the upper portion of the nozzle brick is a frustum matched with the frustum-shaped cavity, and a supporting mechanism used for limiting the nozzle brick in the frustum-shaped cavity is detachably installed on the outer side of the bottom of the steel ladle cavity. The steel ladle with the composite seating brick nozzle brick is simple in structure, and the nozzle brick is convenient to mount and dismount.

Description

Technical Field

[0001] The utility model relates to the field of molten steel ladle, in particular to a molten steel ladle with composite seat bricks and nozzle bricks. Background Art

[0002] The ladle is an important container in the metallurgical industry, which plays the role of storing and transporting molten steel. The nozzle bricks need to be replaced every time the ladle is used. Figure 1 As described above, the molten steel in the existing ladle usually flows out from the base bricks and nozzle bricks at the bottom of the ladle. When installing and removing the nozzle bricks on the base bricks, it is necessary to do it from the inside of the ladle. Since the temperature inside the ladle that has just been used is very high, it is necessary to wait until the ladle naturally cools down to room temperature before replacing the nozzle bricks. Before removing the nozzle bricks, the cold steel and steel slag in the ladle need to be removed, which is time-consuming and labor-intensive. At the same time, the ladle needs to be cooled from high temperature to room temperature, and the preparation period is long, and more ladles need to be prepared.

[0003] In order to achieve the purpose of easy disassembly of the composite nozzle seat brick, the utility model patent with the authorization announcement number CN215468069U discloses a composite nozzle seat brick for a ladle, including a limit seat brick, the outer wall of the limit seat brick is fixedly connected to a fixed sleeve, the outer wall of the fixed sleeve is provided with a fixed opening, the inner wall of the fixed sleeve is fixedly connected to the limit sleeve, the inner wall of the limit sleeve is movably connected to a movable spring, one end of the movable spring is movably connected to a fixed connecting rod, one end of the fixed connecting rod is fixedly connected to a movable rod, and one end of the movable rod is fixedly connected to a fixed hook. The composite nozzle seat brick for a ladle makes the composite nozzle seat brick for a ladle easy to disassemble, and solves the problem that the composite nozzle seat brick for a general ladle cannot be easily disassembled, but the composite nozzle seat brick for a ladle has the defects of more parts and complex structure. Utility Model Content

[0004] In order to simplify the structure of a ladle with a composite seat brick and nozzle brick and facilitate installation and disassembly, the technical solution adopted by the utility model is: a ladle with a composite seat brick and nozzle brick, comprising a ladle cavity, a seat brick is arranged at the bottom of the cavity of the ladle cavity, a nozzle brick installation cavity is opened in the seat brick, a detachable nozzle brick is installed in the nozzle brick installation cavity, and a molten steel flow channel is opened inside the nozzle brick.

[0005] The nozzle brick installation cavity is a frustum-shaped cavity that is narrow at the top and wide at the bottom. The upper part of the nozzle brick is a frustum that matches the frustum-shaped cavity. A supporting mechanism for limiting the nozzle brick in the frustum-shaped cavity is detachably installed on the outer side of the bottom of the ladle cavity.

[0006] Based on the above, in order to facilitate support from bottom to top, the lower side wall of the nozzle brick shrinks inward to form a step, and the top of the support mechanism is supported on the bottom of the step.

[0007] Based on the above, in order to facilitate the molten steel to flow out from the ladle cavity, the bottom of the nozzle brick extends out of the seat brick to form an extended portion that is wide at the top and narrow at the bottom.

[0008] Based on the above, in order to facilitate the installation of the support mechanism, a steel ring installation cavity is formed between the outer side wall of the extending portion and the inner side wall of the nozzle brick installation cavity.

[0009] Based on the above, in order to facilitate disassembly, the supporting mechanism includes a steel ring arranged in the steel ring installation cavity, a support plate arranged at the bottom of the steel ring for lifting the steel ring upward, and at least one pair of fixed ear plates fixedly arranged on the outside of the bottom of the ladle cavity, a circular hole for the extension portion to pass through is opened in the center of the support plate, an ear plate passing hole for the fixed ear plate to pass through is opened on the outside of the support plate, a fixing hole is opened on the fixed ear plate, and a wedge plate for limiting the support plate on the fixed ear plate is detachably installed in the fixing hole.

[0010] Based on the above, in order to facilitate the flow of molten steel, the top of the nozzle brick is lower than the top of the seat brick.

[0011] Based on the above, the thickness of the seat brick is equal to the thickness of the bottom of the ladle cavity.

[0012] Based on the above, in order to facilitate disassembly, the bottom of the steel ring extends out of the bottom of the seat brick.

[0013] Based on the above, the seat brick is a rectangular seat brick or a cube seat brick.

[0014] Based on the above, the molten steel flow channel is a cylindrical flow channel.

[0015] The utility model has substantial characteristics and progress compared with the prior art. Specifically, the ladle with composite seat bricks and nozzle bricks provided by the utility model can realize the installation and removal of nozzle bricks from the bottom of the outside of the ladle without changing the way of molten steel outflow, which solves a series of difficulties caused by the installation and removal of nozzle bricks from the inside of the ladle and improves the working environment. At the same time, the efficiency of replacing nozzle bricks is greatly improved, which originally took 24 hours but now only takes 4 hours, thereby improving the turnover rate of the ladle. The ladle with composite seat bricks and nozzle bricks has fewer parts and a simpler structure.

[0016] Furthermore, the supporting mechanism is designed to include a steel ring arranged in the steel ring installation cavity, a support plate arranged at the bottom of the steel ring for lifting the steel ring upward, and at least one pair of fixed ear plates fixedly arranged on the outside of the bottom of the ladle cavity, a circular hole for the extension portion to pass through is opened in the center of the support plate, an ear plate passing hole for the fixed ear plate to pass through is opened on the outside of the support plate, a fixing hole is opened on the fixed ear plate, and a wedge plate for limiting the support plate on the fixed ear plate is detachably installed in the fixing hole, so that the nozzle brick can be effectively supported from bottom to top, and the nozzle brick can be quickly disassembled by quickly disassembling the wedge plate, and the disassembly and installation steps are simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the installation position of the existing ladle base brick and nozzle brick.

[0018] Figure 2 The utility model provides a schematic diagram of the assembly structure of a molten steel bag with a composite seat brick and a nozzle brick.

[0019] Figure 3 The utility model is a schematic diagram of the local structure of a steel ladle with a composite seat brick and a nozzle brick.

[0020] Figure 4 The utility model discloses a schematic diagram of the disassembly structure of a steel ladle with a composite seat brick and a nozzle brick.

[0021] In the figure: 1. ladle cavity; 2. mold cavity; 3. seat brick; 4. nozzle brick; 5. molten steel flow channel; 6. steel ring; 7. support plate; 8. wedge plate; 9. fixed ear plate; 10. nozzle brick installation cavity; 11. extension part; 12. steel ring installation cavity; 13. fixing hole; 14. ear plate passing hole; 15. round hole. DETAILED DESCRIPTION

[0022] The technical solution of the utility model is further described in detail below through specific implementation methods.

[0023] Example 1

[0024] This embodiment provides a ladle with a composite seat brick and nozzle brick, such as Figure 2 , Figure 3 and Figure 4 As shown, it comprises a ladle cavity 1, and a seat brick 3 is arranged at the bottom of the cavity 2 of the ladle cavity 1. A nozzle brick installation cavity 10 is opened in the seat brick 3, a detachable nozzle brick 4 is installed in the nozzle brick installation cavity 10, and a molten steel flow channel 5 is opened inside the nozzle brick 4.

[0025] The nozzle brick installation cavity 10 is a frustum-shaped cavity that is narrow at the top and wide at the bottom. The upper part of the nozzle brick 4 is a frustum that matches the frustum-shaped cavity. A support mechanism for limiting the nozzle brick in the frustum-shaped cavity is detachably installed on the outer side of the bottom of the ladle cavity 1.

[0026] In this embodiment, in order to facilitate support from bottom to top, the lower side wall of the nozzle brick 4 shrinks inward to form a step, and the top of the supporting mechanism is supported on the bottom of the step.

[0027] In order to facilitate the molten steel to flow out from the ladle cavity, the bottom of the nozzle brick 4 extends out of the seat brick to form an extended portion 11 that is wide at the top and narrow at the bottom.

[0028] In order to facilitate the installation of the supporting mechanism, a steel ring installation cavity 12 is formed between the outer side wall of the extending portion 11 and the inner side wall of the nozzle brick installation cavity.

[0029] Specifically, Figure 4 As shown, in order to facilitate disassembly, in this embodiment, the supporting mechanism includes a steel ring 6 arranged in the steel ring installation cavity 12, a support plate 7 arranged at the bottom of the steel ring 6 for lifting the steel ring 6 upward, and a pair of fixed ear plates 9 fixedly arranged on the outside of the bottom of the ladle cavity 1.

[0030] A circular hole 15 is provided in the center of the support plate 7 for the extension 11 to pass through. An ear plate through hole 14 is provided on the outer side of the support plate 7 for the fixing ear plate 9 to pass through. A fixing hole 13 is provided on the fixing ear plate 9, and a wedge plate 8 for restricting the support plate 7 on the fixing ear plate 9 is detachably installed in the fixing hole 13.

[0031] Example 2

[0032] This embodiment provides a ladle with a composite seat brick and nozzle brick. The main difference from Embodiment 1 is that in this embodiment: in order to facilitate the flow of molten steel, the top of the nozzle brick is lower than the top of the seat brick, and the molten steel flow channel is a cylindrical flow channel.

[0033] Example 3

[0034] This embodiment provides a ladle with a composite seat brick and nozzle brick. The main difference from Embodiment 1 is that in this embodiment: in order to facilitate disassembly, the bottom of the steel ring extends out of the bottom of the seat brick, and the seat brick is a rectangular seat brick.

[0035] Example 4

[0036] This embodiment provides a ladle with a composite seat brick and nozzle brick. The main difference from Embodiment 1 is that in this embodiment: the seat brick is a cubic seat brick, and the thickness of the seat brick is equal to the thickness of the bottom of the ladle cavity.

[0037] Specifically, when replacing the nozzle bricks of the ladle with the composite seat brick and nozzle brick provided in this embodiment, the specific operation steps are as follows:

[0038] First, remove the wedge plate from the fixing hole on the fixed ear plate, then separate the support plate downward from the fixed ear plate, and then remove the steel ring from the steel ring installation cavity downward. Finally, use long steel bars to pound out the nozzle bricks from the inside of the ladle to the outside and reinstall and replace them.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for protection of the utility model.

Claims

1. A ladle with a composite seat brick and nozzle brick, comprising a ladle cavity, a seat brick is arranged at the bottom of the cavity of the ladle cavity, a nozzle brick installation cavity is opened in the seat brick, a detachable nozzle brick is installed in the nozzle brick installation cavity, and a molten steel flow channel is opened inside the nozzle brick, characterized in that: The nozzle brick installation cavity is a frustum-shaped cavity that is narrow at the top and wide at the bottom. The upper part of the nozzle brick is a frustum that matches the frustum-shaped cavity. A supporting mechanism for limiting the nozzle brick in the frustum-shaped cavity is detachably installed on the outer side of the bottom of the ladle cavity.

2. The ladle with composite seat brick and nozzle brick according to claim 1, characterized in that: The side wall of the lower part of the nozzle brick contracts inwardly to form a step, and the top of the supporting mechanism is supported on the bottom of the step.

3. The ladle with composite seat brick and nozzle brick according to claim 2, characterized in that: The bottom of the nozzle brick extends out of the seat brick to form an extended portion which is wide at the top and narrow at the bottom.

4. The ladle with composite seat brick and nozzle brick according to claim 3, characterized in that: A steel ring installation cavity is formed between the outer side wall of the extending portion and the inner side wall of the nozzle brick installation cavity.

5. The ladle with composite seat brick and nozzle brick according to claim 4, characterized in that: The supporting mechanism includes a steel ring arranged in the steel ring installation cavity, a support plate arranged at the bottom of the steel ring for lifting the steel ring upward, and at least one pair of fixed ear plates fixedly arranged on the outside of the bottom of the ladle cavity, a circular hole for the extension portion to pass through is provided in the center of the support plate, an ear plate passing hole for the fixed ear plate to pass through is provided on the outside of the support plate, a fixing hole is provided on the fixed ear plate, and a wedge plate for limiting the support plate on the fixed ear plate is detachably installed in the fixing hole.

6. The ladle with composite seat brick and nozzle brick according to any one of claims 1 to 5, characterized in that: The top of the nozzle brick is lower than the top of the seat brick.

7. The ladle with composite seat brick and nozzle brick according to claim 6, characterized in that: The thickness of the seat brick is equal to the thickness of the bottom of the ladle cavity.

8. The ladle with composite seat brick and nozzle brick according to claim 5, characterized in that: The bottom of the steel ring extends out of the bottom of the seat brick.

9. The ladle with composite seat brick and nozzle brick according to claim 1 or 2 or 3 or 4 or 5 or 8, characterized in that: The seat brick is a rectangular seat brick or a cube seat brick.

10. The ladle with composite seat brick and nozzle brick according to claim 9, characterized in that: The molten steel flow channel is a cylindrical flow channel.

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