CN221312482U - Ladle bottom structure for reducing ladle surplus - Google Patents
Ladle bottom structure for reducing ladle surplus Download PDFInfo
- Publication number
- CN221312482U CN221312482U CN202322870291.7U CN202322870291U CN221312482U CN 221312482 U CN221312482 U CN 221312482U CN 202322870291 U CN202322870291 U CN 202322870291U CN 221312482 U CN221312482 U CN 221312482U
- Authority
- CN
- China
- Prior art keywords
- ladle
- ladle bottom
- shaped blocking
- blocking dam
- impact table
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000000903 blocking effect Effects 0.000 claims abstract description 22
- 239000011449 brick Substances 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract 4
- 239000003643 water by type Substances 0.000 claims 1
- 239000002893 slag Substances 0.000 abstract description 20
- 229910000831 Steel Inorganic materials 0.000 abstract description 12
- 239000010959 steel Substances 0.000 abstract description 12
- 238000005266 casting Methods 0.000 abstract description 6
- 230000015572 biosynthetic process Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 238000007599 discharging Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000011819 refractory material Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Landscapes
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
The utility model relates to a ladle bottom structure for reducing ladle casting residue, and belongs to the technical field of refractory materials in metallurgical industry. The technical proposal is as follows: comprises a ladle bottom (3), a large nozzle pocket brick (4) arranged on the ladle bottom (3), a nozzle (5) and a ladle working lining (6), and is characterized in that: an L-shaped blocking dam (1) and a rectangular impact table (2) are built at the ladle bottom (3), and the rectangular impact table (2) is positioned at the center of the ladle bottom (3) and higher than the ladle bottom (3); the L-shaped blocking dam (1) is positioned at one side around the water gap pocket brick (4) and close to the center of the ladle bottom (3), and the L-shaped blocking dam (1) and the ladle working lining (6) form an enclosing ring related to the water gap pocket brick (4). The beneficial effects of the utility model are as follows: the method can reduce the critical height of the spiral slag at the end of ladle pouring or disturb molten steel vortex, delay the formation time of the spiral slag, reduce the slag discharging amount of the ladle and reduce the ladle pouring allowance.
Description
Technical Field
The utility model relates to a ladle bottom structure for reducing ladle casting residue, and belongs to the technical field of refractory materials in metallurgical industry.
Background
The steel ladle is an important tool for carrying molten steel storage and transportation, external refining and pouring in the steelmaking process, and the reasonable steel ladle refractory design is used in the steelmaking production, so that the aims of energy conservation and consumption reduction can be effectively achieved. In actual production, a slag discharge detection device is usually arranged near a ladle bottom nozzle, and when the slag quantity entering a tundish is in a certain proportion, an alarm prompt closes a sliding nozzle. At the end of pouring of the ladle, the molten steel forms a vortex at the ladle nozzle under the action of the ground rotation deflection force, and the coiled steel slag enters the tundish, so that the oxygen content of the tundish is increased, the quality of a continuous casting blank is affected, and the quality cost is lost. The formation of vortex at the ladle nozzle at the end of pouring is unavoidable, so as to reduce the influence of the vortex of molten steel on the slag tapping of the ladle, a ladle pre-pouring stopping process mode is often adopted in actual production, and the process mode causes the increase of ladle pouring surplus, influences the metal yield and has larger cost loss.
The traditional ladle bottom design has no vortex inhibition structure, the critical height of the spiral slag at the end of ladle pouring is higher, the slag quantity is larger when the slag quantity is in a certain period, and the improvement of the molten steel yield and the quality of molten steel are not facilitated. Therefore, the design of the ladle bottom of the ladle is required to be optimized, the critical height of the spiral slag at the end of ladle pouring is reduced or molten steel vortex is disturbed, the formation time of the spiral slag is delayed, the slag discharging amount of the ladle is reduced, and the ladle pouring allowance is reduced.
Disclosure of utility model
The utility model aims to provide a ladle bottom structural design for reducing ladle casting residue, which can reduce the critical height of the spiral slag at the end of ladle casting or disturb molten steel vortex, delay the formation time of the spiral slag, reduce the slag discharging amount of a ladle, reduce the ladle casting residue and solve the problems in the background technology.
The technical scheme of the utility model is as follows:
The ladle bottom structure for reducing ladle surplus comprises a ladle bottom, a large nozzle pocket brick arranged at the ladle bottom, a nozzle and a ladle working lining, wherein an L-shaped blocking dam and a rectangular impact table are built at the ladle bottom, and the rectangular impact table is positioned at the center of the ladle bottom and higher than the ladle bottom; the L-shaped blocking dam is positioned on one side, which is positioned around the nozzle pocket brick and is close to the center of the ladle bottom, and the L-shaped blocking dam and the ladle working lining form an enclosing ring related to the nozzle pocket brick.
The rectangular impact table is 50mm higher than the ladle bottom.
The rectangular impact table accounts for 21% of the total area of the bag bottom.
The L-shaped blocking dam is higher than the rectangular impact table.
The L-shaped blocking dam is 50mm higher than the rectangular impact table.
The beneficial effects of the utility model are as follows: the utility model has simple construction process, does not need extra mold and tool intervention, can effectively reduce the critical height of the spiral slag at the end of ladle pouring or disturb molten steel vortex, delay the formation time of the spiral slag, and reduce ladle pouring allowance and slag discharge amount.
Drawings
FIG. 1 is a top view of the present utility model;
FIG. 2 is a cross-sectional view of the utility model A-A;
FIG. 3 is a partial cross-sectional view of the B-B device of the present utility model;
FIG. 4 is a partial cross-sectional view of the utility model C-C;
in the figure: an L-shaped blocking dam 1, a rectangular impact table 2, a ladle bottom 3, a nozzle pocket brick 4, a nozzle 5, a ladle working lining 6, a ladle permanent lining 7 and a ladle shell 8.
Detailed Description
The utility model is further illustrated by way of example with reference to the accompanying drawings.
Referring to fig. 1-4, a ladle bottom structure for reducing ladle surplus comprises a ladle bottom 3, a large nozzle pocket block 4, a nozzle 5 and a ladle working lining 6 which are arranged on the ladle bottom 3, wherein an L-shaped blocking dam 1 and a rectangular impact table 2 are built on the ladle bottom 3, and the rectangular impact table 2 is positioned at the center of the ladle bottom 3 and is higher than the ladle bottom 3; the L-shaped blocking dam 1 is positioned on one side of the periphery of the nozzle pocket block 4 and close to the center of the ladle bottom 3, and the L-shaped blocking dam 1 and the ladle working lining 6 form an enclosing ring related to the nozzle pocket block 4.
In this embodiment, referring to fig. 1-4, an L-shaped blocking dam 1 and a rectangular impact table 2 are built on a ladle bottom 3, the rectangular impact table 2 is located at the center of the ladle bottom 3 and higher than the ladle bottom 3, the L-shaped blocking dam 1 is located at one side around a nozzle pocket brick 4 of the ladle bottom 3 and close to the center of the ladle bottom, and surrounds the nozzle pocket brick 4 together with a ladle working liner 6 and higher than the ladle bottom 3 and the rectangular impact table 2.
The rectangular impact table 2 is built by refractory bricks, is 50mm higher than the ladle bottom 3 and occupies 21% of the total area of the ladle bottom 3. The L-shaped blocking dam 1 is built by refractory bricks, is 100mm higher than the ladle bottom 3, is 50mm higher than the rectangular impact table 2, and has the number of 30-40 refractory bricks.
When the rectangular impact table 2 and the L-shaped blocking dam 1 are built, the special refractory brick material used is consistent with the refractory brick material of the ladle bottom 3, and the rest external dimensions are consistent except the height of the brick body. The rectangular impact table 2 and the L-shaped blocking dam 1 are built without additional mold intervention.
In the 260T ladle masonry process, the size details and the use quantity of the special refractory bricks and the ladle bottom refractory bricks are shown in the following table:
The results of the 260T ladle casting allowance control test are shown in the following table:
after the utility model is adopted, the average pouring allowance of the ladle is reduced by about 2.96t, the loss of aluminum acid is reduced by about 8ppm, and the hot coil slag inclusion rate is 0.
Claims (5)
1. The utility model provides a reduce ladle bottom structure that ladle waters surplus, contains ladle bottom (3), sets up at ladle bottom (3) big mouth of a river pocket brick (4), mouth of a river (5) and ladle working lining (6), its characterized in that: an L-shaped blocking dam (1) and a rectangular impact table (2) are built at the ladle bottom (3), and the rectangular impact table (2) is positioned at the center of the ladle bottom (3) and higher than the ladle bottom (3); the L-shaped blocking dam (1) is positioned at one side around the water gap pocket brick (4) and close to the center of the ladle bottom (3), and the L-shaped blocking dam (1) and the ladle working lining (6) form an enclosing ring related to the water gap pocket brick (4).
2. The ladle bottom structure for reducing ladle surplus according to claim 1, wherein: the rectangular impact table (2) is 50mm higher than the ladle bottom (3).
3. The ladle bottom structure for reducing ladle surplus according to claim 2, wherein: the rectangular impact table (2) accounts for 21% of the total area of the ladle bottom (3).
4. The ladle bottom structure for reducing ladle surplus according to claim 1, wherein: the L-shaped blocking dam (1) is higher than the rectangular impact table (2).
5. The ladle bottom structure for reducing ladle surplus according to claim 4, wherein: the L-shaped blocking dam (1) is 50mm higher than the rectangular impact table (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322870291.7U CN221312482U (en) | 2023-10-25 | 2023-10-25 | Ladle bottom structure for reducing ladle surplus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322870291.7U CN221312482U (en) | 2023-10-25 | 2023-10-25 | Ladle bottom structure for reducing ladle surplus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221312482U true CN221312482U (en) | 2024-07-12 |
Family
ID=91785623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322870291.7U Active CN221312482U (en) | 2023-10-25 | 2023-10-25 | Ladle bottom structure for reducing ladle surplus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221312482U (en) |
-
2023
- 2023-10-25 CN CN202322870291.7U patent/CN221312482U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |