CN220560402U - Ladle bottom refractory structure - Google Patents
Ladle bottom refractory structure Download PDFInfo
- Publication number
- CN220560402U CN220560402U CN202322106688.9U CN202322106688U CN220560402U CN 220560402 U CN220560402 U CN 220560402U CN 202322106688 U CN202322106688 U CN 202322106688U CN 220560402 U CN220560402 U CN 220560402U
- Authority
- CN
- China
- Prior art keywords
- prefabricated brick
- ladle bottom
- bottom refractory
- ladle
- layer
- 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.)
- Active
Links
- 239000011449 brick Substances 0.000 claims abstract description 83
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 47
- 239000010959 steel Substances 0.000 claims abstract description 47
- 239000000463 material Substances 0.000 claims abstract description 12
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 8
- 239000010431 corundum Substances 0.000 claims abstract description 8
- 238000005266 casting Methods 0.000 claims abstract description 6
- 239000004927 clay Substances 0.000 claims abstract description 6
- 239000011819 refractory material Substances 0.000 description 13
- 238000012423 maintenance Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000009991 scouring Methods 0.000 description 2
- 210000003464 cuspid Anatomy 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
Landscapes
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
The utility model relates to a ladle bottom refractory structure, which comprises a permanent pouring material layer positioned at the bottom of a ladle, a ladle bottom refractory prefabricated brick positioned above the permanent pouring material layer and contacted with molten steel, and a working pouring material layer surrounding the ladle bottom refractory prefabricated brick, and is characterized in that: and a safety warning prefabricated brick layer is further arranged between the steel ladle bottom refractory prefabricated brick and the permanent casting material layer, wherein corundum fire clay layers for bonding and warning are arranged at the masonry joint between each prefabricated brick in the safety warning prefabricated brick layer and the joint between the safety warning prefabricated brick layer and the steel ladle bottom refractory prefabricated brick.
Description
Technical Field
The utility model relates to a steel ladle refractory structure, in particular to a steel ladle bottom refractory structure.
Background
The steel tapping hole of the converter is provided with a drop height of about 7 meters to the bottom of the steel ladle, the impact area at the bottom of the steel ladle is the part with the most serious molten steel flushing, the impact area is required to bear the impact of molten steel with the temperature of about 1650 ℃ from the converter, and the thickness of refractory materials in the impact area is gradually reduced and the safety risk is also gradually increased along with the increase of the using times of the steel ladle.
At present, a steel ladle bottom refractory structure generally comprises a permanent pouring material layer positioned at the bottom of a steel ladle, a steel ladle bottom refractory prefabricated brick positioned above the permanent pouring material layer and contacted with molten steel, and a working pouring material layer surrounding the steel ladle bottom refractory prefabricated brick, wherein the steel ladle bottom refractory prefabricated brick generally adopts a whole refractory prefabricated plate, which becomes thinner and thinner along with the scouring and melting loss of the molten steel, and even causes the seepage and the molten steel leakage of an impact area part, so that the whole steel ladle is scrapped, and in order to prevent the occurrence of such accidents, after each steel ladle is poured into a furnace, the steel ladle is lifted to a hot repair platform to enable the steel ladle to lie down, and hot repair personnel perform point inspection on the use condition of the refractory in the steel ladle to judge whether the refractory can be used continuously or is in a lower line, and lift the steel ladle to a cold repair platform for maintenance. Because the integral refractory precast slab is arranged in the impact area at the bottom of the steel ladle, the lower part of the precast slab in the impact area is connected with the permanent layer of the steel ladle, and the precast slab is gradually melted and damaged in the use process of the steel ladle, and the thickness of the refractory is thinned. Because the integral precast slab has no obvious warning sign, ladle judgment personnel cannot accurately judge the residual thickness of the refractory precast bricks in the impact area of the ladle bottom, and the judgment errors are sometimes unavoidable completely by experience, so that molten steel is leaked and leaked at the impact area part in the use process of the ladle, and even the whole ladle is scrapped.
Therefore, how to accurately and timely find the risk of the refractory material thinning caused by scouring and melting loss of the refractory material precast brick in the ladle bottom impact area and how to avoid the seepage and the steel leakage of the ladle bottom impact area are a big problem of ladle steelmaking.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a steel ladle bottom refractory structure, which adopts the following technical scheme: the utility model provides a ladle bottom refractory structure, it includes the permanent pouring bed that is located ladle bottom, the ladle bottom refractory prefabricated brick that is located permanent pouring bed top and contacts with molten steel to and the work pouring bed that surrounds ladle bottom refractory prefabricated brick, its characterized in that: and a safety warning prefabricated brick layer is further arranged between the steel ladle bottom refractory prefabricated brick and the permanent casting material layer, wherein corundum fire clay layers for bonding and warning are arranged at the masonry joint between each prefabricated brick in the safety warning prefabricated brick layer and the joint between the safety warning prefabricated brick layer and the steel ladle bottom refractory prefabricated brick.
The utility model is further characterized in that:
the whole safety warning prefabricated brick layer is rectangular, and the periphery of the safety warning prefabricated brick layer exceeds 50-100mm of the steel ladle bottom refractory prefabricated brick; and the two long sides of the safety warning prefabricated brick layer are in concave-convex staggered design.
Each prefabricated brick in the safety warning prefabricated brick layer is 60-100mm high.
The masonry joint between each prefabricated brick in the safety warning prefabricated brick layer is smaller than 2 mm.
The beneficial effects of the utility model are as follows:
because the safety warning precast brick layer is also arranged between the ladle bottom refractory precast brick and the permanent casting material layer, the joint between each precast brick in the safety warning precast brick layer and the joint between the safety warning precast brick layer and the ladle bottom refractory precast brick are both provided with corundum fire clay layers for bonding and warning. The corundum fireclay layer can send brighter luminance than peripheral refractory materials at high temperature, ladle judgment personnel can judge the situation of ladle bottom refractory material structure more intuitively, conveniently and rapidly, when the ladle bottom refractory material structure melts down to the junction between the prefabricated brick layer of safety warning and the prefabricated brick of ladle bottom refractory material, the ladle is equivalent to pulling up one warning line, when melting down to the prefabricated brick layer of safety warning, the ladle judgment personnel is favorable to pulling up the second warning line, the ladle judgment personnel can judge the situation of ladle bottom refractory material more intuitively, conveniently and rapidly, and safer operation of the ladle can be ensured. The thickness of the prefabricated brick of the lower safety layer is about 60-100mm, so that molten steel is not leaked to the impact area part caused by a vertical horse, ladle judgment personnel can arrange maintenance personnel to maintain the ladle in a line in time, safer operation of the ladle can be ensured, and the service life of the ladle can be effectively prolonged.
Drawings
FIG. 1 is a cross-sectional view of a structure in accordance with one embodiment of the present utility model;
fig. 2 is a top view of the partial structure of fig. 1.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 to 2, a ladle bottom refractory structure comprising a permanent castable layer 1 positioned at the bottom of a ladle, a ladle bottom refractory prefabricated brick 2 positioned above the permanent castable layer and contacted with molten steel, and a working castable layer 3 surrounding the ladle bottom refractory prefabricated brick, wherein: and a safety warning prefabricated brick layer 4 is further arranged between the steel ladle bottom refractory prefabricated brick and the permanent casting material layer, wherein corundum fire clay layers 5 for bonding and warning are arranged at the masonry joint between each prefabricated brick in the safety warning prefabricated brick layer and the joint between the safety warning prefabricated brick layer and the steel ladle bottom refractory prefabricated brick.
In the embodiment, the whole safety warning prefabricated brick layer 4 is rectangular, and the periphery of the safety warning prefabricated brick layer exceeds 50-100mm of the steel ladle bottom refractory prefabricated brick; and the two long sides of the safety warning prefabricated brick layer 4 are in concave-convex staggered design, so that when pouring the castable of the steel ladle working layer, the joint surface of the castable and the safety warning prefabricated brick layer is of a canine tooth staggered structure, the combination of the working layer castable layer and the safety layer is facilitated, and straight slits and cold steel infiltration are avoided.
In addition, in the embodiment, the height of each prefabricated brick in the safety warning prefabricated brick layer 4 is 60-100mm; the masonry joint between each prefabricated brick in the safety warning prefabricated brick layer 4 is smaller than 2 mm.
Because the safety warning precast brick layer 4 is also arranged between the ladle bottom refractory precast brick and the permanent casting material layer, the joint between each precast brick in the safety warning precast brick layer 4 and the joint between the safety warning precast brick layer and the ladle bottom refractory precast brick are both provided with the corundum fire clay layer 5 for bonding and warning. The corundum fireclay layer 5 can send brighter luminance than peripheral refractory materials at high temperature, ladle judgment personnel can more intuitively, conveniently and rapidly judge the condition of the ladle bottom refractory material structure, when the ladle bottom refractory material structure is fused to the joint between the safety warning prefabricated brick layer 4 and the ladle bottom refractory material prefabricated brick 2, the fused ladle is equivalent to pulling up one warning line, and when the fused ladle is fused to the safety warning prefabricated brick layer 4, the fused ladle is equivalent to pulling up a second warning line, thereby being beneficial to the ladle judgment personnel to judge the condition of the ladle bottom refractory material more intuitively, conveniently and rapidly and ensuring safer operation of the ladle. Because the precast bricks in the lower safety warning precast brick layer have the thickness of about 60-100mm, molten steel leakage at the impact area part can not be caused by a vertical horse, ladle judgment staff can arrange maintenance staff to maintain the ladle offline in time, safer operation of the ladle can be ensured, and the service life of the ladle can be effectively prolonged.
While the technical content and features of the present utility model have been disclosed above, it will be understood that various changes and modifications to the above-described structure, including combinations of technical features individually disclosed or claimed herein, and other combinations of these features as apparent to those skilled in the art may be made under the inventive concept of the present utility model. Such variations and/or combinations fall within the technical field to which the utility model relates and fall within the scope of the claims of the utility model.
Claims (4)
1. The utility model provides a ladle bottom refractory structure, it includes the permanent pouring bed that is located ladle bottom, the ladle bottom refractory prefabricated brick that is located permanent pouring bed top and contacts with molten steel to and the work pouring bed that surrounds ladle bottom refractory prefabricated brick, its characterized in that: and a safety warning prefabricated brick layer is further arranged between the steel ladle bottom refractory prefabricated brick and the permanent casting material layer, wherein corundum fire clay layers for bonding and warning are arranged at the masonry joint between each prefabricated brick in the safety warning prefabricated brick layer and the joint between the safety warning prefabricated brick layer and the steel ladle bottom refractory prefabricated brick.
2. The ladle bottom refractory structure of claim 1, wherein: the whole safety warning prefabricated brick layer is rectangular, and the periphery of the safety warning prefabricated brick layer exceeds 50-100mm of the steel ladle bottom refractory prefabricated brick; and the two long sides of the safety warning prefabricated brick layer are in concave-convex staggered design.
3. The ladle bottom refractory structure as recited in claim 1 or claim 2, wherein: each prefabricated brick in the safety warning prefabricated brick layer is 60-100mm high.
4. The ladle bottom refractory structure as recited in claim 3, wherein: the masonry joint between each prefabricated brick in the safety warning prefabricated brick layer is smaller than 2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322106688.9U CN220560402U (en) | 2023-08-07 | 2023-08-07 | Ladle bottom refractory structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322106688.9U CN220560402U (en) | 2023-08-07 | 2023-08-07 | Ladle bottom refractory structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220560402U true CN220560402U (en) | 2024-03-08 |
Family
ID=90096554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322106688.9U Active CN220560402U (en) | 2023-08-07 | 2023-08-07 | Ladle bottom refractory structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220560402U (en) |
-
2023
- 2023-08-07 CN CN202322106688.9U patent/CN220560402U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101412109B (en) | Building and laying method capable of extending service lifetime of RH ladle working lining | |
| CN110935871A (en) | Steel ladle structure and manufacturing method thereof | |
| CN212350352U (en) | Steel ladle structure | |
| CN111778373A (en) | Maintenance method of blast furnace main channel | |
| CN220560402U (en) | Ladle bottom refractory structure | |
| CN220560405U (en) | Ladle | |
| CN210458242U (en) | Residual iron discharging device for iron runner | |
| CN210254208U (en) | Long service life's whole air brick | |
| CN101612663B (en) | Sliding plate for off-line baking continuous casting ladle and molten steel outlet replacing method | |
| CN220560406U (en) | Ladle | |
| CN220560404U (en) | Refractory prefabricated brick for ladle bottom impact zone | |
| CN220560403U (en) | Ladle bottom refractory structure | |
| CN202779757U (en) | Integrated-casting duck bill on edge of hot metal ladle | |
| CN211866588U (en) | Steel ladle with stepped ladle bottom | |
| CN202571220U (en) | Improved ladle cover for middle ladles | |
| CN207308957U (en) | Improved continuous casting production | |
| CN214290814U (en) | Novel torpedo jar of resistant erosion | |
| CN110806106A (en) | Method and structure for repairing collapse of refractory material at top of heating furnace | |
| CN218926225U (en) | Steel ladle resistant to impact erosion | |
| JPH11245017A (en) | Fireproof structure around stopper nozzle of base pour style ladle | |
| CN110408732A (en) | Row's residual iron device and method for iron runner | |
| CN220393785U (en) | Novel precast block of blast furnace main channel skimming device | |
| JP2544720Y2 (en) | Tuyere structure of gas injection nozzle for molten metal container | |
| CN211782775U (en) | High-temperature molten aluminum transfer box with refractory material lining | |
| CN206717024U (en) | Improved continuous casting production structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |