CN203992371U - The ventilative cover of a kind of ladle bottom brick mounting structure - Google Patents
The ventilative cover of a kind of ladle bottom brick mounting structure Download PDFInfo
- Publication number
- CN203992371U CN203992371U CN201420251540.2U CN201420251540U CN203992371U CN 203992371 U CN203992371 U CN 203992371U CN 201420251540 U CN201420251540 U CN 201420251540U CN 203992371 U CN203992371 U CN 203992371U
- Authority
- CN
- China
- Prior art keywords
- brick
- ventilative cover
- ladle
- magnesia carbon
- ladle bottom
- 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.)
- Expired - Fee Related
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- Compositions Of Oxide Ceramics (AREA)
Abstract
The utility model discloses the ventilative cover of a kind of ladle bottom brick mounting structure in steelmaking equipment field, to solve when ventilative cover brick is removed in current ladle light maintenance, damage its ladle bottom magnesia carbon brick around, cause ladle overhaul, the problem that impact is produced.It comprises the ventilative cover brick being arranged between ladle bottom magnesia carbon brick, between ventilative cover brick surrounding and magnesia carbon brick, is provided with the fire-resistant gravity flow material cushion that thickness is 50-100mm.The utility model forms the fire-resistant gravity flow material cushion of a relative flexibility between the ventilative cover brick of ladle bottom and magnesia carbon brick, when ventilative cover brick is removed in ladle light maintenance, form one and be convenient to the buffer strip of removing, avoid the impaired of ladle bottom magnesia carbon brick, after enforcement, stopped the injured accident that causes ladle to scrap overhaul of magnesia carbon brick completely.
Description
Technical field
The utility model relates to the ventilative cover of a kind of ladle bottom brick mounting structure in steelmaking equipment field.
Background technology
Steel mill ladle bottom is that magnesia carbon brick is built by laying bricks or stones and formed; between ladle bottom magnesia carbon brick, there is a ventilative cover brick; air brick is installed in ventilative cover brick hollow part; the effect of air brick is to realize steel ladle bottom argon blowing operation; the effect of ventilative cover brick is protection air brick, prevents that it is washed away by molten steel and too fast erosion, fracture.Because of Argon operation causing simultaneously ventilative cover brick around steel stream, air-flow wash away larger, the life-span of air brick is generally left and right 20 times, be 40 left and right the service life of ventilative cover brick, steel mill's ladle is carried out the pattern of two blocks of air bricks of a ventilative cover brick outfit and is arranged production, when ladle life reaches the multiple of 40 times and 40 times, need to descend the cooling rear light maintenance of production line.The main purpose of light maintenance is to change ventilative cover brick, other position is checked, is repaired simultaneously.During ladle light maintenance, need remove ventilative cover brick with bale breaker, because ventilative cover brick has been stained with slag and residual steel around, remove difficulty larger, often, when removing ventilative cover brick, can damage its ladle bottom magnesia carbon brick around, cause ladle because security is affected, to be forced to overhaul, impact is produced.
Summary of the invention
The purpose of this utility model is to overcome prior art defect, and the ventilative cover of a kind of ladle bottom brick mounting structure is provided, and removes ventilative cover brick while being convenient to light maintenance.
The technical solution of the utility model is achieved in that the ventilative cover of a kind of ladle bottom brick mounting structure, comprises the ventilative cover brick being arranged between ladle bottom magnesia carbon brick, and it is, between ventilative cover brick surrounding and magnesia carbon brick, is provided with fire-resistant gravity flow material cushion.
Further, fire-resistant gravity flow material buffer layer thickness is 50-100mm.
The utility model forms the fire-resistant gravity flow material cushion of a relative flexibility between the ventilative cover brick of ladle bottom and magnesia carbon brick, when ventilative cover brick is removed in ladle light maintenance, form one and be convenient to the buffer strip of removing, avoid the impaired of ladle bottom magnesia carbon brick, after enforcement, stopped the injured accident that causes ladle to scrap overhaul of magnesia carbon brick completely.
Accompanying drawing explanation
Fig. 1 is existing ladle structural representation.
Fig. 2 is the utility model structure top view.
In figure, the ventilative cover of 1-brick; 2-magnesia carbon brick; 3-ladle; 4-fire-resistant gravity flow material cushion.
The specific embodiment
Below in conjunction with accompanying drawing, be further described:
As shown in Figure 1, have a ventilative cover brick 1 between existing ladle 3 bottom magnesia carbon bricks 2, air brick is installed in ventilative cover brick hollow part.During ladle 3 light maintenance, need remove ventilative cover brick 1 with bale breaker, because ventilative cover brick 1 has been stained with slag and residual steel around, remove difficulty larger, often when removing ventilative cover brick 1, can damage its ladle bottom magnesia carbon brick 2 around, cause ladle 2 because security is affected, to be forced to overhaul, impact is produced.
As shown in Figure 2, the ventilative cover of a kind of ladle bottom of the present utility model brick mounting structure, comprise the ventilative cover brick 1 being arranged between ladle 3 bottom magnesia carbon bricks 2, between ventilative cover brick 1 surrounding and magnesia carbon brick 2, be provided with fire-resistant gravity flow material cushion 4, fire-resistant gravity flow material cushion 4 thickness are 80mm left and right.
Fire-resistant gravity flow material cushion 4 is selected commercially available corundum material refractory material self-flowing material in bulk, its composition Al2O3 percentage by weight >=90%, rupture strength Mpa(1500 ℃ * 3h) >=12, reheating linear change rate on reheating %(1500 ℃ * 3h) be ± 0.5, bulk density g/cm3 (110 ℃ * 24h) >=3.1, the good fluidity during construction of this material, compressive resistance after baking, rupture strength are higher.During construction, between ventilative cover brick 1 surrounding and magnesia carbon brick 2, reserve the gap of 80mm, first build by laying bricks or stones after complete ventilative cover brick 1 and magnesia carbon brick 2, the water distribution of corundum self-flowing material is added in gap, and solid with shock club vibration, following steel ladle working layer toasts together, self-flowing material and ventilative cover brick 1, magnesia carbon brick 2 are combined closely, meet the normal safe operation of ladle, when ventilative cover brick 1 is removed in ladle 3 light maintenances, bale breaker can impact ventilative cover brick 1 and fire-resistant gravity flow material cushion 4 positions, reaches the object of not damaging bottom magnesia carbon brick 2.
Claims (2)
1. the ventilative cover of a ladle bottom brick mounting structure, comprises the ventilative cover brick being arranged between ladle bottom magnesia carbon brick, it is characterized in that: between ventilative cover brick surrounding and magnesia carbon brick, be provided with fire-resistant gravity flow material cushion.
2. the ventilative cover of a kind of ladle bottom according to claim 1 brick mounting structure, is characterized in that: fire-resistant gravity flow material buffer layer thickness is 50-100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420251540.2U CN203992371U (en) | 2014-05-16 | 2014-05-16 | The ventilative cover of a kind of ladle bottom brick mounting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420251540.2U CN203992371U (en) | 2014-05-16 | 2014-05-16 | The ventilative cover of a kind of ladle bottom brick mounting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203992371U true CN203992371U (en) | 2014-12-10 |
Family
ID=52032436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420251540.2U Expired - Fee Related CN203992371U (en) | 2014-05-16 | 2014-05-16 | The ventilative cover of a kind of ladle bottom brick mounting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203992371U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113020582A (en) * | 2021-03-02 | 2021-06-25 | 中冶宝钢技术服务有限公司 | Ladle bottom structure, installation and maintenance process thereof |
| CN113231628A (en) * | 2021-07-12 | 2021-08-10 | 常州凯达重工科技有限公司 | Quick-release steel ladle |
-
2014
- 2014-05-16 CN CN201420251540.2U patent/CN203992371U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113020582A (en) * | 2021-03-02 | 2021-06-25 | 中冶宝钢技术服务有限公司 | Ladle bottom structure, installation and maintenance process thereof |
| CN113231628A (en) * | 2021-07-12 | 2021-08-10 | 常州凯达重工科技有限公司 | Quick-release steel ladle |
| CN113231628B (en) * | 2021-07-12 | 2021-09-24 | 常州凯达重工科技有限公司 | Quick-release steel ladle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170717 Address after: 430083, Gate No. 2, Qingshan District, Hubei, Wuhan Patentee after: Wuhan iron and Steel Company Limited Address before: 430080 Wuhan, Hubei Friendship Road, No. 999, Wuchang Patentee before: Wuhan Iron & Steel (Group) Corp. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20180516 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |