CN103302280B - A kind of building method of steel ladle bottom for ultra-low carbon steel - Google Patents
A kind of building method of steel ladle bottom for ultra-low carbon steel Download PDFInfo
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- CN103302280B CN103302280B CN201310232145.XA CN201310232145A CN103302280B CN 103302280 B CN103302280 B CN 103302280B CN 201310232145 A CN201310232145 A CN 201310232145A CN 103302280 B CN103302280 B CN 103302280B
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Abstract
The invention discloses a kind of building method of steel ladle bottom for ultra-low carbon steel, its step comprises: (1) bottom of steel ladle permanent layer after having toasted builds pocket block by laying bricks or stones, around pocket block, then builds a circle protection tile by laying bricks or stones; (2) the bottom of steel ladle permanent layer after having toasted is built two brick cup of air bricks by laying bricks or stones, then around each brick cup of air brick, build a circle protection tile by laying bricks or stones respectively; (3) impact pad is built by laying bricks or stones between above-mentioned two brick cup of air bricks; (4) idle area of bottom of steel ladle is filled by castable, and jolt ramming.Building method of the present invention is simple, and efficiency is high; After having built by laying bricks or stones, bag end impact zone and non-percussion district fit closely, form the bottom of steel ladle of band impact pad complete in structure; Impact pad is again independently simultaneously, can change separately and do not need to dismantle at the bottom of whole bag after impact pad damages.
Description
Technical field
The invention belongs to the masonry technology field of metallurgical casting container inside lining, particularly a kind of building method of steel ladle bottom for ultra-low carbon steel.
Background technology
Ladle is the important container of metallurgical industry, is mainly used in carrying molten steel and implements refining to molten steel.Pour in the process of ladle at molten steel by converter, high-temperature steel current produce continuous print to bottom of steel ladle and impact, the refractory material of this shock zone is usually caused to be washed into pit shape, cause be shorter than the service life of the refractory material at other position of ladle in its service life, cause whole ladle different parts refractory material not mate service life, thus cause the high of ladle frequency of maintenance.At home, in view of in ultra-low-carbon steel smelting process, refractory material be controlled to carburetting in molten steel, make this kind of Refractory for Ladle usually adopt carbon-free castable or pouring precast block.Use large-scale pouring precast block in territory, ladle bottom impact area of steel ladle, non-percussion region adopts castable moulding by casting.Although the large scale prefabricated block of more traditional refractory brick that impact zone uses can resist the impact failure of high-temperature molten steel better, it remains position the most easily damaged in refractory material in whole ladle system, needs periodic maintenance, changes.
Patent CN101117851A discloses a kind of ladle bottom construction method, is applicable to the ladle using high-alumina brick as bag end working lining.Its inventive point is: at bag end impact zone layout piling brick, thicken the bag end, piling brick is inserted into and thickeies a formation entirety in castable, thus it is incrust to ensure to thicken material, improves and wraps the service life end by castable.
But the impact pad that at the bottom of above-mentioned bag, impact zone uses is embedded in non-percussion district castable, the bag large-area breakage in territory, base area may be caused to change impact pad at the bottom of the bag damaged in use procedure, or damaged while making other refractory part as valuable in air brick or the mouth of a river etc.Not only workload is large, and is unfavorable for that steel mill controls ladle lining cost.
Summary of the invention
Technical problem to be solved by this invention be to provide a kind of can change impact pad time effectively reduce bottom of steel ladle damage bag at the bottom of building method.
For solving the problems of the technologies described above, the invention provides a kind of building method of steel ladle bottom for ultra-low carbon steel, comprising the following steps:
(1) the bottom of steel ladle permanent layer after having toasted builds pocket block 1 by laying bricks or stones, then around pocket block 1, builds a circle protection tile 5 by laying bricks or stones;
(2) the bottom of steel ladle permanent layer after having toasted is built two brick cup of air bricks 2 by laying bricks or stones, then around each brick cup of air brick 2, build a circle protection tile 5 by laying bricks or stones respectively;
(3) impact pad 3 is built by laying bricks or stones between above-mentioned two brick cup of air bricks 2;
(4) idle area of bottom of steel ladle is filled by castable 4, and jolt ramming.
Further, described protection tile 5 is for building prefabricated section.
Further, described two brick cup of air bricks 2 are symmetrical about the center line of bottom of steel ladle, between the two apart from the width being greater than described impact pad 3.
Further, described impact pad 3 comprises two cuboid-type structures, and one of them cuboid is fixed on immediately below another cuboid.
Further, two described cuboids, are placed in the length of the cuboid of below, wide, and high size is less than the length of the cuboid of top, wide, high size.
The building method of a kind of steel ladle bottom for ultra-low carbon steel disclosed by the invention, avoids at the bottom of maintenance package and the damage changed to other structure in impact pad process by form structure of ladle bottom being arranged to protection tile; In this method, although the castable laminating in impact pad and non-percussion district closely, both are separate, and this just enables impact pad change separately afterwards in damage, and need not dismantle at the bottom of whole bag, reduces production cost and improves production efficiency.
Accompanying drawing explanation
Fig. 1 is the topology layout figure of the bottom of steel ladle that the present invention relates to;
Wherein, 1-pocket block, 2-brick cup of air brick, 3-impact pad, 4-castable, 5-protection tile.
Detailed description of the invention
The building method of a kind of steel ladle bottom for ultra-low carbon steel disclosed by the invention, comprises the following steps:
(1) the bottom of steel ladle permanent layer after having toasted builds pocket block 1 by laying bricks or stones, then around pocket block 1, builds a circle protection tile 5 by laying bricks or stones;
(2) the bottom of steel ladle permanent layer after having toasted is built two brick cup of air bricks 2 by laying bricks or stones, then around each brick cup of air brick 2, build a circle protection tile 5 by laying bricks or stones respectively;
(3) impact pad 3 is built by laying bricks or stones between above-mentioned two brick cup of air bricks 2;
(4) idle area of bottom of steel ladle is filled by castable 4, and jolt ramming.
See Fig. 1, perform method for constructing bottom of steel ladle disclosed by the invention, build the structure of bottom of steel ladle by laying bricks or stones.Ladle bottom building pocket block 1 after having toasted and brick cup of air brick 2; Above-mentioned two kinds of structures bear this important function as the necessary structure of bottom of steel ladle, itself are also valuable refractory parts simultaneously; In order to avoid safeguarding at the bag end or changing the damage causing above-mentioned two structures in impact pad process, around it, build protection tile 5 by laying bricks or stones.Preferably, in view of ultra-low-carbon steel is smelted, require that restriction refractory material increases charcoal in firm water, protection tile 5 adopts carbon free precast block.
In the present invention, impact pad 3 can be changed separately; Impact pad 3 is placed between two brick cup of air bricks 2, and two air brick 2 brick cups are symmetrical about bottom of steel ladle center line, split in center line both sides.The spare area castable of bottom of steel ladle is filled, and ramming is tight, makes to fit between castable 4 and each structure closely.
The impact pad that the present invention relates to is that two cuboid-type folded structures form, and one immediately below being wherein positioned at plays a supportive role; Be positioned at the length of the cuboid of below, wide, high size is less than the length of the cuboid of top, wide, high size, and this structure enables impact pad castable fully contact laminating, and formation is combined closely, and improves the bag life-span end simultaneously.When changing impact pad 3, only needing to destroy the pouring precast block protection tile 5 around brick cup and castable 4, and protecting the valuable refractory part such as pocket block, brick cup of air brick from related destruction, reducing the maintenance cost of ladle.The simple structure of impact pad 3 makes it install and dismantles all very convenient; Similar, do not have other structure when relatively independent each structure in the bag end can ensure to change separately or seldom affect.
It should be noted last that, above detailed description of the invention is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to example to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (4)
1. a building method for steel ladle bottom for ultra-low carbon steel, is characterized in that, comprises the following steps:
(1) the bottom of steel ladle permanent layer after having toasted is built pocket block (1) by laying bricks or stones, then around pocket block (1), build a circle protection tile (5) by laying bricks or stones;
(2) the bottom of steel ladle permanent layer after having toasted is built two brick cup of air bricks (2) by laying bricks or stones, then around each brick cup of air brick (2), build a circle protection tile (5) by laying bricks or stones respectively;
(3) impact pad (3) is built by laying bricks or stones between above-mentioned two brick cup of air bricks (2);
(4) idle area of bottom of steel ladle is filled by castable (4), and jolt ramming;
Wherein, described impact pad (3) comprises two cuboid-type structures, and one of them cuboid is fixed on immediately below another cuboid.
2. the building method of steel ladle bottom for ultra-low carbon steel as claimed in claim 1, is characterized in that: described protection tile (5) is for building prefabricated section.
3. the building method of steel ladle bottom for ultra-low carbon steel as claimed in claim 1, is characterized in that: described two brick cup of air bricks (2) are symmetrical about the center line of bottom of steel ladle, between the two apart from the width being greater than described impact pad (3).
4. the building method of steel ladle bottom for ultra-low carbon steel as claimed in claim 1, is characterized in that: two described cuboids, is placed in the length of the cuboid of below, wide, and high size is less than the length of the cuboid of top, wide, high size.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310232145.XA CN103302280B (en) | 2013-06-09 | 2013-06-09 | A kind of building method of steel ladle bottom for ultra-low carbon steel |
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| CN201310232145.XA CN103302280B (en) | 2013-06-09 | 2013-06-09 | A kind of building method of steel ladle bottom for ultra-low carbon steel |
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| CN103302280A CN103302280A (en) | 2013-09-18 |
| CN103302280B true CN103302280B (en) | 2016-01-13 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108971470B (en) * | 2018-09-07 | 2024-04-30 | 云南濮耐昆钢高温材料有限公司 | Novel steel ladle and masonry method thereof |
| CN110640129A (en) * | 2019-10-22 | 2020-01-03 | 苏师大半导体材料与设备研究院(邳州)有限公司 | Metalwork forges and uses intelligent balling device |
| CN110722142A (en) * | 2019-10-22 | 2020-01-24 | 苏师大半导体材料与设备研究院(邳州)有限公司 | Method for rapidly detecting weight of molten steel |
| CN112658237A (en) * | 2020-12-11 | 2021-04-16 | 北京首钢股份有限公司 | Steel ladle capable of inhibiting eddy current |
| 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 |
| CN115301936B (en) * | 2022-08-08 | 2024-03-19 | 阳春新钢铁有限责任公司 | Ladle bottom masonry process for reducing residual steel of ladle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN201823925U (en) * | 2010-03-08 | 2011-05-11 | 浙江自立股份有限公司 | Precast block for ladle bottom impact area of steel ladle |
| CN102274957A (en) * | 2011-08-05 | 2011-12-14 | 莱芜钢铁集团有限公司 | Steel ladle |
| CN202343932U (en) * | 2011-11-15 | 2012-07-25 | 赵素志 | Impact block structure for pouring semi-steel ladle working lining |
| CN102886514A (en) * | 2012-10-26 | 2013-01-23 | 武汉钢铁(集团)公司 | Ladle bottom casting method and lashed area reinforced castable construction mould thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10156517A (en) * | 1996-11-28 | 1998-06-16 | Nisshin Steel Co Ltd | Method for working monolithic back up lining in molten metal vessel |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN201823925U (en) * | 2010-03-08 | 2011-05-11 | 浙江自立股份有限公司 | Precast block for ladle bottom impact area of steel ladle |
| CN102274957A (en) * | 2011-08-05 | 2011-12-14 | 莱芜钢铁集团有限公司 | Steel ladle |
| CN202343932U (en) * | 2011-11-15 | 2012-07-25 | 赵素志 | Impact block structure for pouring semi-steel ladle working lining |
| CN102886514A (en) * | 2012-10-26 | 2013-01-23 | 武汉钢铁(集团)公司 | Ladle bottom casting method and lashed area reinforced castable construction mould thereof |
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Owner name: BEIJING SHOUGANG CO., LTD. Free format text: FORMER OWNER: HEBEI SHOUGANG QIAN AN STEEL CO., LTD. Effective date: 20140404 Free format text: FORMER OWNER: CAPITAL IRON + STEEL GENERAL CO. Effective date: 20140404 |
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