CN102974812A - Ladle and ladle erosion resistant method - Google Patents
Ladle and ladle erosion resistant method Download PDFInfo
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- CN102974812A CN102974812A CN2012105122650A CN201210512265A CN102974812A CN 102974812 A CN102974812 A CN 102974812A CN 2012105122650 A CN2012105122650 A CN 2012105122650A CN 201210512265 A CN201210512265 A CN 201210512265A CN 102974812 A CN102974812 A CN 102974812A
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Abstract
The invention provides a ladle and a ladle erosion resistant method. The ladle comprises a steel plate, wherein the steel plate is positioned in a position where a flushing point is generated when molten steel enters the ladle, so as to prevent the ladle from being eroded by the molten steel. According to the ladle and the ladle erosion resistant method, the ladle erosion caused by the molten steel can be effectively reduced, and the service life of the ladle can be prolonged.
Description
Technical field
The present invention relates to a kind of ladle and ladle anti-erosion method.
Background technology
The intermediate link that external refining is produced as converter and continuous casting, play improve output, ensure the quality of products, purify hot metal and regulate the effect of composition.Therefore, to provide aborning chemical composition, gas content and field trash qualified molten steel, must carry out external refining, whole smelting process all be with ladle as basic container, so ladle is significant to the production of clean steel.
Ladle lining exerts an influence by the cleanliness factor of different modes to steel: (1) ladle slag line place liquid oxygen compound (slag) is to the chemical erosion of refractory material, in case chemical erosion occurs, the mechanical strength at this position and refractoriness all can degradations; (2) mechanical erosion that produces after refractory material contacts with molten steel, mechanical erosion (turbulent flow is more serious than the laminar flow abrasion) and strong thermal and mechanical stress to ladle lining body when molten steel is poured ladle into can cause lining body cracking, for the employed ladle of electric furnace that adopts eccentric bottom tapping, molten steel has the greatest impact to bag end molten steel impact zone and the positions such as nozzle assembly of flowing through.Chemical erosion and mechanical erosion all can crack, and refractory material is involved in the molten steel and forms and be mingled with, and molten steel is polluted.
At present, most of iron and steel enterprises are placed on research emphasis on the damage research on mechanism of ladle to refractory material, and at many aspects such as process for making, new material, brick-building art, scientific managements, realize the safe operation of ladle and reduce refractory consumption, but owing to bring certain difficulty to current technology, produce little effect again or cost is higher.
Therefore, need a kind of method that ladle corrodes that reduces simply and effectively.
Summary of the invention
In order to overcome the problems referred to above of the prior art, the invention provides a kind of ladle, described ladle comprises steel plate, described steel plate is positioned at a little the position washed away that produces when molten steel enters ladle, corrodes ladle to prevent molten steel.
Preferably, the thickness of described steel plate is 5mm～8mm.Described steel plate is alloy-steel plate, and the composition of described alloy-steel plate is determined according to the composition of the composition of molten steel and steel billet to be manufactured.
Preferably, described steel plate is entirely wrapped up in the inside of ladle or is partly wrapped up in.
In addition, the invention provides a kind of anti-erosion method of ladle, described anti-erosion method is included in the inside of ladle and places steel plate, and described steel plate is positioned at a little the position washed away that produces when molten steel enters ladle, to prevent molten steel erosion ladle.
According to ladle of the present invention and anti-erosion method thereof, can effectively reduce molten steel to the erosion of ladle, prolong the service life of ladle.
Description of drawings
By the detailed description below in conjunction with accompanying drawing, it is clearer that the features and advantages of the present invention will become: in the accompanying drawings:
Fig. 1 is the schematic diagram according to ladle anti-erosion method of the present invention.
The specific embodiment
Hereinafter, will describe exemplary embodiment of the present invention in detail.
Fig. 1 shows the schematic diagram according to ladle anti-erosion method of the present invention.With reference to Fig. 1 as can be known, ladle 4 according to the present invention comprises the steel plate 5 of the inside that is positioned at ladle 4, wherein, washes away a little 3 position when steel plate 5 is arranged in molten steel 2 and enters ladle 4, washes away to prevent that 2 pairs of ladles of molten steel 4 from producing.
Particularly, when converter 1 began to put steel, molten steel 2 at first impacted steel plate 5, and this moment, turbulent flow occured in ladle 4 molten steel 2, and mechanical erosion is the most serious, but because the protection of steel plate 5 effectively reduces the mechanical erosion effect of 2 pairs of ladles 4 of molten steel.
In the present invention, the thickness of steel plate 5 can determine according to the tap of converter 1, when the tap of converter 1 is large, can adopt thicker steel plate 5, and when the tap of converter 1 hour, can adopt thinner steel plate 5.According to the present invention, can select thickness is the steel plate 5 of 5mm～8mm.
In the present invention, be etched in order to prevent better ladle 4, can for example adopt according to the interior shape of ladle 4 process for stamping to make steel plate 5, so that steel plate 5 is entirely wrapped up in the inside of ladle 4 or partly wrapped up in.
According to embodiments of the invention, steel plate 5 can be alloy-steel plate.When converter 1 begins to put steel, molten steel 2 at first impacts alloy-steel plate 5, constantly impact in the process of alloy-steel plate 5 at molten steel 2, alloy-steel plate 5 is dissolved in the molten steel gradually, its alloying component also enters in the molten steel, thereby reach the purpose of adjusting molten steel composition, reduced the inclusion content in the molten steel, improved slab quality.
According to the present invention, the chemical composition of alloy-steel plate 5 can be regulated according to the chemical composition of steel billet to be manufactured and the chemical composition of molten steel, to obtain satisfactory steel billet.
According to ladle anti-erosion method of the present invention, can effectively reduce mechanical erosion, reduce the reaction time of chemical erosion, reduce the inclusion content in the molten steel, improve slab quality.In addition, according to ladle anti-erosion method of the present invention, can greatly reduce the ladle that human factor causes and wear the steel accident, thereby reach the safe operation coefficient that improves ladle, reduce the purpose that ladle lining fireproof material consumes.In addition, according to ladle anti-erosion method of the present invention, processing is simple, and cost is low, easily industrial realization.
Above embodiment shows example of the present invention, yet scope of the present invention is not limited to this, and scope of the present invention is defined by the claims.
Claims (10)
1. a ladle is characterized in that described ladle comprises steel plate, and described steel plate is positioned at a little the position washed away that produces when molten steel enters ladle, corrodes ladle to prevent molten steel.
2. ladle according to claim 1, the thickness that it is characterized in that described steel plate is 5mm～8mm.
3. steel plate according to claim 1 is characterized in that described steel plate is alloy-steel plate.
4. steel plate according to claim 3, the composition that it is characterized in that described alloy-steel plate is determined according to the composition of the composition of molten steel and steel billet to be manufactured.
5. steel plate according to claim 1 is characterized in that described steel plate entirely wraps up in the inside of ladle or partly wrap up in.
6. the anti-erosion method of a ladle is characterized in that the inside that described anti-erosion method is included in ladle places steel plate, and described steel plate is positioned at a little the position washed away that produces when molten steel enters ladle, to prevent molten steel erosion ladle.
7. anti-erosion method according to claim 6, the thickness that it is characterized in that described steel plate is 5mm～8mm.
8. anti-erosion method according to claim 6 is characterized in that described steel plate is alloy-steel plate.
9. anti-erosion method according to claim 8, the composition that it is characterized in that described alloy-steel plate is determined according to the composition of the composition of molten steel and steel billet to be manufactured.
10. anti-erosion method according to claim 6 is characterized in that described steel plate entirely wraps up in the inside of ladle or partly wrap up in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210512265.0A CN102974812B (en) | 2012-12-04 | 2012-12-04 | Ladle and ladle erosion resistant method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210512265.0A CN102974812B (en) | 2012-12-04 | 2012-12-04 | Ladle and ladle erosion resistant method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102974812A true CN102974812A (en) | 2013-03-20 |
| CN102974812B CN102974812B (en) | 2015-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210512265.0A Expired - Fee Related CN102974812B (en) | 2012-12-04 | 2012-12-04 | Ladle and ladle erosion resistant method |
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| CN (1) | CN102974812B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103691925A (en) * | 2013-12-27 | 2014-04-02 | 广西铁合金有限责任公司 | Integral slight-decarbonizing ladle for production of low-carbon manganese-silicon alloy |
| CN105033235A (en) * | 2015-08-28 | 2015-11-11 | 桂林昌鑫机械制造有限公司 | Smelting steel ladle |
| CN112611667A (en) * | 2020-11-03 | 2021-04-06 | 北京科技大学 | Physical simulation test device for steel ladle slag line resistant material erosion corrosion and use method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2274538Y (en) * | 1996-08-21 | 1998-02-18 | 武汉市武汉搪瓷二厂 | Two layer slide block protector for continuous cast process |
| US6673306B2 (en) * | 2001-04-13 | 2004-01-06 | North American Refractories Co. | Refractory lining for metallurgical vessel |
| CN201463569U (en) * | 2009-07-15 | 2010-05-12 | 河南省宏达炉业有限公司 | Anti-scouring fire-resisting prefabricated brick |
| CN202239522U (en) * | 2011-09-22 | 2012-05-30 | 首钢总公司 | Combined steel ingot mould |
| CN203030881U (en) * | 2012-12-04 | 2013-07-03 | 莱芜钢铁集团有限公司 | Steel ladle |
-
2012
- 2012-12-04 CN CN201210512265.0A patent/CN102974812B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2274538Y (en) * | 1996-08-21 | 1998-02-18 | 武汉市武汉搪瓷二厂 | Two layer slide block protector for continuous cast process |
| US6673306B2 (en) * | 2001-04-13 | 2004-01-06 | North American Refractories Co. | Refractory lining for metallurgical vessel |
| CN201463569U (en) * | 2009-07-15 | 2010-05-12 | 河南省宏达炉业有限公司 | Anti-scouring fire-resisting prefabricated brick |
| CN202239522U (en) * | 2011-09-22 | 2012-05-30 | 首钢总公司 | Combined steel ingot mould |
| CN203030881U (en) * | 2012-12-04 | 2013-07-03 | 莱芜钢铁集团有限公司 | Steel ladle |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103691925A (en) * | 2013-12-27 | 2014-04-02 | 广西铁合金有限责任公司 | Integral slight-decarbonizing ladle for production of low-carbon manganese-silicon alloy |
| CN105033235A (en) * | 2015-08-28 | 2015-11-11 | 桂林昌鑫机械制造有限公司 | Smelting steel ladle |
| CN112611667A (en) * | 2020-11-03 | 2021-04-06 | 北京科技大学 | Physical simulation test device for steel ladle slag line resistant material erosion corrosion and use method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102974812B (en) | 2015-01-14 |
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Owner name: LAIWU IRON + STEEL GROUP CORP., LTD. Effective date: 20141124 Owner name: NORTHEAST UNIV. Free format text: FORMER OWNER: LAIWU IRON + STEEL GROUP CORP., LTD. Effective date: 20141124 |
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Inventor after: Lv Ming Inventor after: Chen Yan Inventor after: He Aiguo Inventor after: Liu Hongyin Inventor after: Ma Lin Inventor after: Wang Yi Inventor after: Wang Bo Inventor after: Zhang Guanfeng Inventor after: Liu Chengjun Inventor after: Min Yi Inventor after: Jiang Maofa Inventor after: Chen Lei Inventor before: Ma Lin Inventor before: Wang Bo Inventor before: Liu Hongyin Inventor before: Zhang Guanfeng Inventor before: Chen Lei Inventor before: Chen Yan Inventor before: He Aiguo |
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Free format text: CORRECT: INVENTOR; FROM: MA LIN WANG BO LIU HONGYIN ZHANG GUANFENG CHEN LEI CHEN YAN HE AIGUO TO: LV MING MA LIN WANG YI WANG BO ZHANG GUANFENG LIU CHENGJUN MIN YI JIANG MAOFA CHEN LEI CHEN YAN HE AIGUO LIU HONGYIN Free format text: CORRECT: ADDRESS; FROM: 271104 LAIWU, SHANDONG PROVINCE TO: 110819 SHENYANG, LIAONING PROVINCE |
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Effective date of registration: 20141124 Address after: 110819 Heping Road, Heping District, Liaoning, Shenyang, Lane No. 11, No. 3 Applicant after: Northeastern University Applicant after: Laiwu Iron & Steel Group Corp., Ltd. Address before: 271104 Shandong Province, Laiwu City Gangcheng District Front Street No. 99 Applicant before: Laiwu Iron & Steel Group Corp., Ltd. |
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Granted publication date: 20150114 Termination date: 20171204 |