CN102886514B - Ladle bottom casting method and lashed area reinforced castable construction mould thereof - Google Patents
Ladle bottom casting method and lashed area reinforced castable construction mould thereof Download PDFInfo
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- CN102886514B CN102886514B CN201210415082.7A CN201210415082A CN102886514B CN 102886514 B CN102886514 B CN 102886514B CN 201210415082 A CN201210415082 A CN 201210415082A CN 102886514 B CN102886514 B CN 102886514B
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- castable
- impact
- construction mould
- impact zone
- ladle bottom
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Abstract
The invention discloses a ladle bottom casting method and a lashed area reinforced castable construction mould of the ladle bottom casting method. The ladle bottom casting method disclosed by the invention comprises the following steps that: (1) lashed area bricks, the lashed area reinforced castable construction mould, nozzle well blocks and air bricks are placed at the corresponding positions of a ladle bottom based on specified dimensions before casting; and (2) the lashed area reinforced castable construction mould is used for casting bottom lashed area reinforced castable at first and then bottom non-lashed area common castable, in order to ensure that the lashed area reinforced castable is completely cast on the lashed area, and the lashed area reinforced castable construction mould is drawn out to combine the edge parts of the two castables crosswise, and no hollow joint exists. The method disclosed by the invention solves the problems of poor resistance to washout and erosion in ladle bottom castable. The ladle bottom residual thickness after a use cycle of the ladle is larger than a safe residual thickness of 90mm, thus creating good conditions for safe ladle running.
Description
Technical field
The ladle that the present invention relates to make steel is built by laying construction technology, refers to particularly a kind of ladle bottom casting method and impact zone reinforcement castable construction mould thereof.
Background technology
The injection-molded of watering that ladle bottom adopts is generally: at Ladle Bottom impact zone, arrange an impact brick, the common castable in the bag end is used in the region beyond Ladle Bottom impact zone.
Yet, in ladle use procedure, to find, converter tapping steel stream shock point has departed from impact brick sometimes, the one side normal packet bottom pour mold material feeding of Ladle Bottom impact block occurs often and rushed a dell, and residual thick 60mm (thinner) is lower than safety residual thick (90mm).When serious, this side of impact block has a dark crack of seeing permanent layer with the position that the common castable in the bag end is combined, and permanent layer is shown in the common castable etch of the bag end this side of impact zone.In ladle running process, there are the not serious problems of resistance to erosion and etch of the common castable in the bag end, can cause serious Ladle Bottom bleed-out accident.
Adopt existing ladle bottom to water injection-molded, existing production is caused to very large impact.Therefore, need badly and improve ladle bottom and water injection-molded, improve impact zone place, the Ladle Bottom impact brick north castable anti-molten steel wash away erosiveness.
Summary of the invention
Object of the present invention will overcome the existing deficiency of prior art exactly, and a kind of ladle bottom casting method is provided, and the impact zone reinforcement castable construction mould of realizing the method.
For achieving the above object, Ladle Bottom impact zone pouring procedure of the present invention, comprises the following steps:
1) before cast, first the impact brick of impact zone, pocket block and two blocks of air bricks in accordance with regulations size put the corresponding position of Ladle Bottom, levelling bottom impact brick, and the opening that impact zone is strengthened castable construction mould is trapped among outside the inner arc face of impact brick;
2) reinforcement castable directly being joined to impact zone strengthens in castable construction mould, after jolt ramming, do not extract impact zone and strengthen castable construction mould, at the non-impact zone on impact zone reinforcement castable construction mould side, pour into a mould the material feeding of normal packet bottom pour mold again, to the non-impact zone in the bag end, common castable vibration is stirred, make castable reach effective exhaust, when cast thickness reaches specific thickness, extract impact zone and strengthen castable construction mould, impact district strengthens the castable jolt ramming of castable construction mould side again, to guarantee that two kinds of castable marginal portions can intersect combination, there is not hollow joint.
Step 1 of the present invention), in, described impact zone is strengthened two parallel long margin frames of castable construction mould and two parallel edges of described impact brick are the angle of 10～30 °.The anti-molten steel that like this, can improve shock zone washes away, anti-molten steel erosion performance.
Step 2 of the present invention), in, strengthen castable and select commercially available corundum castable, Al in described corundum castable
2o
3content is greater than 76%, has that good anti-molten steel washes away, anti-molten steel erosion performance, impact brick at the bottom of the similar bag of its performance.
The impact zone of realizing above-mentioned Ladle Bottom impact zone pouring procedure that the present invention is designed is strengthened castable construction mould, it comprises U-shaped framework, described U-shaped framework is surrounded by two parallel long margin frames and a short frame, between the end of described two parallel long margin frames, form and can be trapped among the opening outside impact brick, between the top of described two long margin frames, be provided with at least one gripper shoe, on the top of described long margin frame and short frame, be provided with a plurality of hooks.
In the present invention, between the top of described two long margin frames, be provided with two gripper shoes.
In the present invention, the height of described U-shaped framework equals the thickness of impact brick.Like this, in impact zone is strengthened castable construction mould, castable is strengthened in cast, and the anti-molten steel that extends shock resistance region washes away, anti-molten steel erosion performance.
Beneficial effect of the present invention is: by except Ladle Bottom impact zone is arranged an impact brick, use the bag end to strengthen castable in impact brick shock zone, at the bag end, non-impact zone is used the material feeding of normal packet bottom pour mold.Like this, can make to strengthen castable at the bottom of the bag in impact brick and shock zone and combine, the anti-molten steel that strengthens shock resistance region washes away, anti-molten steel erosion performance.
At Ladle Bottom, adopt impact zone to strengthen castable construction mould, be convenient to castable construction, not only can make to wrap the end and strengthen the thickness that castable reaches regulation, and the length that can extend impact brick, solved the not problem of resistance to erosion and etch of tank bottom pour mold material feeding.Ladle is after life cycle, and bag is greater than the residual thick 90mm of safety the postpartum end, for good condition has been created in ladle safe operation.
Accompanying drawing explanation
Fig. 1 is the structural representation of Ladle Bottom.
Fig. 2 is the structural representation that Ladle Bottom impact zone is strengthened castable construction mould.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Impact zone shown in Fig. 2 is strengthened castable construction mould, and it comprises U-shaped framework 1, and U-shaped framework 1 is surrounded by two parallel long margin frames 1.1 and a short frame 1.2.The height of U-shaped framework 1 equals the thickness of impact brick 4.Article two, between the end of parallel long margin frame 1.1, form between the top that can be trapped among 1.3, two long margin frames 1.1 of opening outside impact brick 4 and be provided with two gripper shoes 2, on the top of long margin frame 1.1 and short frame 1.2, be provided with a plurality of hooks 3.
Ladle bottom casting method of the present invention, comprises the following steps:
1) before cast, as shown in Figure 1, first the impact brick 4 of impact zone, pocket block 6 and two blocks of air bricks 7 in accordance with regulations size put the corresponding position of Ladle Bottom 8, impact brick 4 bottom levellings, and the opening 1.3 that impact zone is strengthened castable construction mould 5 is trapped among outside the inner arc face 4.1 of impact brick 4, two parallel long margin frames 1.1 that impact zone is strengthened castable construction mould 5 are the angle of 10～30 ° with two parallel edges 4.2 of impact brick 4;
2) reinforcement castable directly being joined to impact zone strengthens in castable construction mould 5, after jolt ramming, do not extract impact zone and strengthen castable construction mould 5, at the non-impact zone on impact zone reinforcement castable construction mould 5 sides, pour into a mould the material feeding of normal packet bottom pour mold again, to the non-impact zone in the bag end, common castable vibration is stirred, make castable reach effective exhaust, when cast thickness reaches specific thickness, extract impact zone and strengthen castable construction mould, impact district strengthens the castable jolt ramming of castable construction mould side again, to guarantee that two kinds of castable marginal portions can intersect combination, there is not hollow joint.Reinforcement castable used is selected commercially available corundum castable, Al in corundum castable
2o
3content is greater than 76%, has that good anti-molten steel washes away, anti-molten steel erosion performance, impact brick at the bottom of the similar bag of its performance.
Claims (6)
1. a ladle bottom casting method, is characterized in that: it comprises the following steps:
1) before cast, first the impact brick of impact zone (4), pocket block (6) and two blocks of air bricks (7) in accordance with regulations size put Ladle Bottom (8) position accordingly, the levelling of impact brick (4) bottom, and the opening (1.3) that impact zone is strengthened castable construction mould (5) is trapped among outside the inner arc face (4.1) of impact brick (4);
2) reinforcement castable directly being joined to impact zone strengthens in castable construction mould (5), after jolt ramming, do not extract impact zone and strengthen castable construction mould (5), at the non-impact zone on impact zone reinforcement castable construction mould (5) side, pour into a mould the material feeding of normal packet bottom pour mold again, to the non-impact zone in the bag end, common castable vibration is stirred, make castable reach effective exhaust, when cast thickness reaches specific thickness, extract impact zone and strengthen castable construction mould, impact district strengthens the castable jolt ramming of castable construction mould side again, to guarantee that two kinds of castable marginal portions can intersect combination, there is not hollow joint.
2. ladle bottom casting method according to claim 1, it is characterized in that: described step 1), impact zone strengthens two parallel long margin frames (1.1) of castable construction mould (5) and two parallel edges (4.2) of described impact brick (4) are the angle of 10～30 °.
3. ladle bottom casting method according to claim 1 and 2, is characterized in that: described step 2), strengthen castable and select corundum castable, Al in described corundum castable
2o
3content is greater than 76%.
4. for realizing the impact zone that ladle bottom casting method designs described in claim 1, strengthen castable construction mould for one kind, it is characterized in that: it comprises U-shaped framework (1), described U-shaped framework (1) is surrounded by two parallel long margin frames (1.1) and a short frame (1.2), between the end of described two parallel long margin frames (1.1), form and can be trapped among the outer opening (1.3) of impact brick (4), between the top of described two long margin frames (1.1), be provided with at least one gripper shoe (2), on the top of described long margin frame (1.1) and short frame (1.2), be provided with a plurality of hooks (3).
5. impact zone according to claim 4 is strengthened castable construction mould, it is characterized in that: between the top of described two long margin frames (1.1), be provided with two gripper shoes (2).
6. according to the impact zone described in claim 4 or 5, strengthen castable construction mould, it is characterized in that: the height of described U-shaped framework (1) equals the thickness of impact brick (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210415082.7A CN102886514B (en) | 2012-10-26 | 2012-10-26 | Ladle bottom casting method and lashed area reinforced castable construction mould thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210415082.7A CN102886514B (en) | 2012-10-26 | 2012-10-26 | Ladle bottom casting method and lashed area reinforced castable construction mould thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102886514A CN102886514A (en) | 2013-01-23 |
| CN102886514B true CN102886514B (en) | 2014-08-13 |
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| CN201210415082.7A Expired - Fee Related CN102886514B (en) | 2012-10-26 | 2012-10-26 | Ladle bottom casting method and lashed area reinforced castable construction mould thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103302280B (en) * | 2013-06-09 | 2016-01-13 | 北京首钢股份有限公司 | A kind of building method of steel ladle bottom for ultra-low carbon steel |
| BR102019024046A2 (en) * | 2019-11-14 | 2021-05-25 | Saint-Gobain do Brasil Produtos Industriais e para Construção Ltda. | method for coating steel pan bottoms |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201329416Y (en) * | 2008-12-18 | 2009-10-21 | 鞍山钢铁集团公司 | Novel ladle-building brick cup |
| CN101700572A (en) * | 2009-11-20 | 2010-05-05 | 武汉钢铁(集团)公司 | Method for building container bottom of carbon-containing molten steel container |
| CN102500753A (en) * | 2011-12-02 | 2012-06-20 | 中冶宝钢技术服务有限公司 | Brick building process of bottom of steel ladle |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0789029B2 (en) * | 1988-10-11 | 1995-09-27 | 日新製鋼株式会社 | Construction method of ladle hearth hot water section |
| JP2705446B2 (en) * | 1992-04-24 | 1998-01-28 | 住友金属工業株式会社 | Ladle spiral furnace construction method |
| JP3024041B2 (en) * | 1994-02-16 | 2000-03-21 | 株式会社クボタ | Weir plate formation method in triangular ladle |
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2012
- 2012-10-26 CN CN201210415082.7A patent/CN102886514B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201329416Y (en) * | 2008-12-18 | 2009-10-21 | 鞍山钢铁集团公司 | Novel ladle-building brick cup |
| CN101700572A (en) * | 2009-11-20 | 2010-05-05 | 武汉钢铁(集团)公司 | Method for building container bottom of carbon-containing molten steel container |
| CN102500753A (en) * | 2011-12-02 | 2012-06-20 | 中冶宝钢技术服务有限公司 | Brick building process of bottom of steel ladle |
Non-Patent Citations (2)
| Title |
|---|
| "钢包底工作衬的热应力分布及结构优化";王志刚等;《耐火材料》;20040430;第38卷(第4期);271-274 * |
| 王志刚等."钢包底工作衬的热应力分布及结构优化".《耐火材料》.2004,第38卷(第4期),271-274. |
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| CN102886514A (en) | 2013-01-23 |
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