CN102274957A - Steel ladle - Google Patents
Steel ladle Download PDFInfo
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- CN102274957A CN102274957A CN2011102235489A CN201110223548A CN102274957A CN 102274957 A CN102274957 A CN 102274957A CN 2011102235489 A CN2011102235489 A CN 2011102235489A CN 201110223548 A CN201110223548 A CN 201110223548A CN 102274957 A CN102274957 A CN 102274957A
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- brick
- ladle
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- air
- air brick
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Abstract
The invention provides a steel ladle, which comprises a ladle bottom, an air permeable brick and a protective brick, wherein at least two air permeable brick holes are formed on the ladle bottom; the air permeable brick is positioned in the air permeable brick holes; the protective brick is positioned between the air permeable brick and the ladle bottom and is used for protecting the air permeable brick; and upper surfaces of the air permeable brick and the protective brick are coplanar basically, and upper surfaces of the air permeable brick and the protective brick extrude from the upper surface of the ladle bottom. According to the steel ladle, the service life of the steel ladle can be prolonged, and the cost of reducing a steelmaking process can be reduced.
Description
Technical field
The present invention relates to a kind of ladle, specifically, the present invention relates to a kind of ladle that has improved the service life of air brick of steel ladle.
Background technology
Along with the user is more and more higher to the steel product quality requirement, set up fast-collaborative second metallurgy platform, low-cost high-efficiency ground produces the inevitable choice that high quality of products becomes steel mill, and air brick of steel ladle is an important functional refractory material of building this platform.Be blown into inert gases such as argon gas by air brick of steel ladle in molten steel, fully stir molten steel, fusing quickly and evenly is added on the various materials in the molten steel, the purpose that remove objectionable impurities to reach, improves the molten steel cleanliness factor.The height in air brick service life directly influences the normal operation of ladle, and the quality of metallurgical effect directly influences the quality of molten steel and the stable operation of production.Therefore, be to need one of problem that solves in the process for making service life of how further to improve air brick of steel ladle.
Summary of the invention
In order to solve the problems of the prior art, prolong the service life of air brick of steel ladle, and and then prolong service life of ladle, the invention provides a kind of ladle.Described ladle comprises: the bag end, be formed with at least two air brick holes at bag at the end; Air brick is arranged in the air brick hole; Protect brick, between at the bottom of air brick and the bag, be used to protect air brick, wherein, air brick and the basic coplane of upper surface that protects brick, and air brick is outstanding from the upper surface at the bag end with the upper surface that protects brick.Preferably, air brick is given prominence to 40mm～60mm with the upper surface that protects brick from the upper surface at the bag end.More preferably, air brick is given prominence to 48mm～52mm with the upper surface that protects brick from the upper surface at the bag end.
According to the present invention, air brick is positioned at the position apart from the center 0.5R～0.7R at the bottom of the ladle bag, and wherein, R is the radius at the bottom of the ladle bag.Preferably, air brick is positioned at the position apart from the center 0.58R～0.62R at the bottom of the ladle bag.
According to the present invention, described ladle comprises two air bricks, and central point is wired to 120 °～150 ° angles at the bottom of described two air bricks and the ladle bag.Preferably, at the bottom of described two air bricks and the ladle bag central point be wired to 133 °～137 ° angles.
According to the present invention, adopt brick building at the bottom of the T type bag at the bottom of the bag between the described air brick, thereby brick comes off at the bottom of preventing bag between the air brick.
Description of drawings
Fig. 1 is the schematic diagram of ladle according to an exemplary embodiment of the present invention.
Fig. 2 is the figure that schematically shows the position of air brick.
The specific embodiment
Describe ladle according to an exemplary embodiment of the present invention below with reference to accompanying drawings in detail.
See figures.1.and.2, ladle comprises according to an exemplary embodiment of the present invention: the bag end 3, be formed with at least two air brick holes at bag at the end 3; Air brick 1 is arranged in the bag air brick hole at the end 3; Protect brick 2, air brick 1 and the bag end 3 between, be used to protect air brick 1.According to the present invention, protect brick 2 and can protect brick for the magnesium carbonaceous, also can protect brick for the magnalium carbonaceous, perhaps can be the brick that protects of this area any material commonly used.
According to the present invention, because protecting brick 2, employing protects air brick 1, thus can prolong the service life of air brick 1, and then prolong the service life of ladle.
Specifically, with reference to Fig. 1,3 height is H1 at the bottom of the bag of ladle according to an exemplary embodiment of the present invention, the height of air brick 1 is H2, the upper surface of air brick 1 and the basic coplane of upper surface that protects brick 2, and air brick 1 is outstanding from the upper surface at the bag end 3 with the upper surface that protects brick 2, preferably, air brick 1 is given prominence to about 40mm～60mm with the upper surface that protects brick 2 from the upper surface at the bag end 3, and more preferably, air brick 1 is given prominence to about 48mm～52mm with the upper surface that protects brick 2 from the upper surface at the bag end 3.
The height H 2 of air brick 1 can be 500mm according to an exemplary embodiment of the present invention, and the height H 1 at the bag end 3 can be 450mm, and air brick 1 can be from the outstanding 50mm of the upper surface at the bag end 3 with the upper surface that protects brick 2.
With reference to Fig. 2, two of ladle air bricks (that is, 1# air brick among Fig. 2 and 2# air brick) are positioned at the position apart from the center 0.5R～0.7R at the bottom of the ladle bag according to an exemplary embodiment of the present invention, and wherein, R is the radius at the bottom of the ladle bag.Preferably, two air bricks are positioned at the position apart from the center 0.58R～0.62R at the bottom of the ladle bag.In addition, can adopt brick building at the bottom of the T type bag at the bottom of the bag between the air brick, thereby brick comes off at the bottom of preventing bag between the air brick.
In addition, with reference to Fig. 2, the line angulation α of central point is 120 °～150 ° angles at the bottom of 1# air brick and 2# air brick and the ladle bag, and preferably, this angle is 133 °～137 ° degree.
Preferably, with reference to Fig. 2, the vertical reference axis angulation θ at the bottom of 1# air brick and the ladle bag at the bottom of the line at center and the ladle bag
1Be 0 °～15 ° degree, the line at center and the horizontal axis angulation θ at the bottom of the ladle bag at the bottom of 2# air brick and the ladle bag
2Be 30 °～45 ° degree, wherein, horizontal axis is the line of centres of ladle both sides gudgeon, and vertically reference axis is the vertical line of ladle both sides gudgeon line.
Because two blocks of air bricks and a pocket block are installed in ladle usually, and above-mentioned three bricks can only be arranged in three 120 ° of regional extents that are formed centrally by three electrodes and bag at the end, wherein, pocket block occupies 120 ° of zones, therefore, in this application, by 1# air brick and 2# air brick are arranged in the position that is positioned at apart from the center 0.5R～0.7R at the bottom of the ladle bag, prevent that two blocks of air bricks are owing to too causing the molten steel incorporation time to increase near the center, perhaps owing to air brick too causes air-flow aggravation to the washing away of ladle sidewall near the ladle sidewall, thereby influence ladle life.
In addition, in this application, the angle [alpha] between two blocks of air bricks can not be avoided contacting with electrode during greater than 150 ° effectively, can increase consumption of electrode like this.When the angle [alpha] between two blocks of air bricks during less than 120 °, can cause the energy loss that the fluid head-on collision brings between two air bricks, accelerate the speed of local molten steel circulation, increase the erosion amount of air brick, thus the life-span of reducing air brick.
According to the present invention, the angle θ of the line at center and the vertical reference axis at the bottom of the ladle bag at the bottom of 1# air brick and the ladle bag
1Can be 15 °, the angle θ of the line at center and the horizontal axis at the bottom of the ladle bag at the bottom of 2# air brick and the ladle bag
2Can be 30 °, that is, the line angulation α at center is 135 ° at the bottom of 1# air brick and 2# air brick and the ladle bag.
In the prior art, adopt single air brick that argon gas is provided usually.Usually, suitable argon gas total flow is 500L/ minute～1500L/ minute, and argon flow amount is during less than 500L/ minute, and the molten steel mixing time obviously increases; When argon flow amount during greater than 1500L/ minute, the effect that argon flow amount increases is very limited.But the single air brick of available technology adopting is difficult to reach average 1000L/ minute flow.
According to the present invention, adopt the ladle structure of two air bricks, carry out two Argon pipelines and independently control, be convenient to regulate according to actual needs argon flow amount, can realize that two blocks of air bricks are used alternatingly simultaneously, improve refining effect.
According to the present invention, because air brick 1 is given prominence to 40mm～60mm with the upper surface that protects brick 2 from the upper surface at the bag end 3, and two blocks of air bricks are positioned at the position apart from the center 0.5R～0.7R at the bottom of the ladle bag, the line angulation α at center is 120 °～150 ° at the bottom of 1# air brick and 2# air brick and the ladle bag, so can prolong the service life of air brick, reduce the ladle maintenance frequency, prevent that ladle liner is because of repeatedly keeping in repair the problem of the long delamination of stoving time that causes, ensure the production direct motion, and then the service life of prolongation ladle, the cost of reduction process for making.
Claims (8)
1. ladle is characterized in that described ladle comprises:
The bag end, be formed with at least two air brick holes at bag at the end;
Air brick is arranged in the air brick hole;
Protect brick, between at the bottom of air brick and the bag, be used to protect air brick,
Wherein, air brick and the basic coplane of upper surface that protects brick, and air brick is outstanding from the upper surface at the bag end with the upper surface that protects brick.
2. ladle according to claim 1, the upper surface that it is characterized in that air brick and protect brick is from the outstanding 40mm～60mm of the upper surface at the bag end.
3. ladle according to claim 2, the upper surface that it is characterized in that air brick and protect brick is from the outstanding 48mm～52mm of the upper surface at the bag end.
4. ladle according to claim 1 is characterized in that air brick is positioned at the position apart from the center 0.5R～0.7R at the bottom of the ladle bag, and wherein, R is the radius at the bottom of the ladle bag.
5. ladle according to claim 4 is characterized in that air brick is positioned at the position apart from the center 0.58R～0.62R at the bottom of the ladle bag.
6. ladle according to claim 1 is characterized in that described ladle comprises two air bricks, and central point is wired to 120 °～150 ° angles at the bottom of described two air bricks and the ladle bag.
7. ladle according to claim 6 is characterized in that 133 °～137 ° angles that are wired to of central point at the bottom of described two air bricks and the ladle bag.
8. ladle according to claim 1 is characterized in that adopting at the bottom of the bag between the described air brick brick building at the bottom of the T type bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102235489A CN102274957A (en) | 2011-08-05 | 2011-08-05 | Steel ladle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102235489A CN102274957A (en) | 2011-08-05 | 2011-08-05 | Steel ladle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102274957A true CN102274957A (en) | 2011-12-14 |
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ID=45100864
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102235489A Pending CN102274957A (en) | 2011-08-05 | 2011-08-05 | Steel ladle |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103302280A (en) * | 2013-06-09 | 2013-09-18 | 河北省首钢迁安钢铁有限责任公司 | Construction method of steel ladle bottom for ultra-low carbon steel |
| CN105112610A (en) * | 2015-09-12 | 2015-12-02 | 北京科技大学 | Bottom argon blowing method capable of quickly homogenizing molten steel |
| CN105861783A (en) * | 2016-06-08 | 2016-08-17 | 武汉科技大学 | Ladle refining air brick with micro argon bubbles formed through bottom blowing |
| CN108676961A (en) * | 2018-06-11 | 2018-10-19 | 江苏集萃先进金属材料研究所有限公司 | A kind of vacuum induction melting fast denitrogenation method |
| CN109593918A (en) * | 2019-02-12 | 2019-04-09 | 鞍钢股份有限公司 | Steel ladle capable of rapidly reducing inclusion content in molten steel and bottom argon blowing method thereof |
| CN110523966A (en) * | 2019-09-25 | 2019-12-03 | 张家港广大特材股份有限公司 | A kind of double porous cores of ladle |
| CN114635015A (en) * | 2022-03-28 | 2022-06-17 | 西安建筑科技大学 | Ladle air brick and ladle of reinforcing molten bath stirring |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2105350U (en) * | 1991-05-10 | 1992-05-27 | 冶金部洛阳耐火材料研究院 | Integrated structure straight hole ventilation brick for steel ladle |
| CN1107401A (en) * | 1994-11-18 | 1995-08-30 | 宝山钢铁(集团)公司 | Combined air-permeable brick for subaeration of ladle |
| CN2384710Y (en) * | 1999-08-10 | 2000-06-28 | 石家庄钢铁有限责任公司 | Refining bottom argon-blown steel ladle |
| CN101412109A (en) * | 2008-11-27 | 2009-04-22 | 莱芜钢铁股份有限公司 | Building and laying method capable of extending service lifetime of RH ladle working lining |
| CN101684654A (en) * | 2008-09-26 | 2010-03-31 | 鞍钢股份有限公司 | Method for building working lining brick at bottom of ladle |
| CN101613781B (en) * | 2009-07-24 | 2011-02-16 | 莱芜钢铁股份有限公司 | Bottom-blown air brick of top and bottom repeatedly blown converter and installing structure thereof |
-
2011
- 2011-08-05 CN CN2011102235489A patent/CN102274957A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2105350U (en) * | 1991-05-10 | 1992-05-27 | 冶金部洛阳耐火材料研究院 | Integrated structure straight hole ventilation brick for steel ladle |
| CN1107401A (en) * | 1994-11-18 | 1995-08-30 | 宝山钢铁(集团)公司 | Combined air-permeable brick for subaeration of ladle |
| CN2384710Y (en) * | 1999-08-10 | 2000-06-28 | 石家庄钢铁有限责任公司 | Refining bottom argon-blown steel ladle |
| CN101684654A (en) * | 2008-09-26 | 2010-03-31 | 鞍钢股份有限公司 | Method for building working lining brick at bottom of ladle |
| CN101412109A (en) * | 2008-11-27 | 2009-04-22 | 莱芜钢铁股份有限公司 | Building and laying method capable of extending service lifetime of RH ladle working lining |
| CN101613781B (en) * | 2009-07-24 | 2011-02-16 | 莱芜钢铁股份有限公司 | Bottom-blown air brick of top and bottom repeatedly blown converter and installing structure thereof |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103302280A (en) * | 2013-06-09 | 2013-09-18 | 河北省首钢迁安钢铁有限责任公司 | Construction method of steel ladle bottom for ultra-low carbon steel |
| 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 |
| CN105112610A (en) * | 2015-09-12 | 2015-12-02 | 北京科技大学 | Bottom argon blowing method capable of quickly homogenizing molten steel |
| CN105112610B (en) * | 2015-09-12 | 2017-06-09 | 北京科技大学 | A kind of argon blowing method at bottom of Quick uniform molten steel |
| CN105861783A (en) * | 2016-06-08 | 2016-08-17 | 武汉科技大学 | Ladle refining air brick with micro argon bubbles formed through bottom blowing |
| CN108676961A (en) * | 2018-06-11 | 2018-10-19 | 江苏集萃先进金属材料研究所有限公司 | A kind of vacuum induction melting fast denitrogenation method |
| CN109593918A (en) * | 2019-02-12 | 2019-04-09 | 鞍钢股份有限公司 | Steel ladle capable of rapidly reducing inclusion content in molten steel and bottom argon blowing method thereof |
| CN110523966A (en) * | 2019-09-25 | 2019-12-03 | 张家港广大特材股份有限公司 | A kind of double porous cores of ladle |
| CN114635015A (en) * | 2022-03-28 | 2022-06-17 | 西安建筑科技大学 | Ladle air brick and ladle of reinforcing molten bath stirring |
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Application publication date: 20111214 |