CN114799094B - Treatment method for steel infiltration between continuous casting tundish plates - Google Patents
Treatment method for steel infiltration between continuous casting tundish plates Download PDFInfo
- Publication number
- CN114799094B CN114799094B CN202210443654.6A CN202210443654A CN114799094B CN 114799094 B CN114799094 B CN 114799094B CN 202210443654 A CN202210443654 A CN 202210443654A CN 114799094 B CN114799094 B CN 114799094B
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- China
- Prior art keywords
- tundish
- steel
- flow
- continuous casting
- accident
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 43
- 239000010959 steel Substances 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000009749 continuous casting Methods 0.000 title claims abstract description 15
- 230000008595 infiltration Effects 0.000 title claims abstract description 15
- 238000001764 infiltration Methods 0.000 title claims abstract description 15
- 239000002893 slag Substances 0.000 claims description 18
- 230000000903 blocking effect Effects 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 6
- 238000009792 diffusion process Methods 0.000 claims description 6
- 230000006837 decompression Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000009628 steelmaking Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011272 standard treatment Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
- B22D11/11—Treating the molten metal
- B22D11/111—Treating the molten metal by using protecting powders
Abstract
The invention belongs to the field of steelmaking continuous casting, and relates to a treatment method for steel infiltration between continuous casting tundish plates.
Description
Technical Field
The invention belongs to the field of steelmaking continuous casting, and relates to a treatment method for steel infiltration between continuous casting tundish plates.
Background
The continuous casting tundish is subjected to inter-plate steel infiltration in the casting process, if improper treatment is carried out, production interruption occurs, fire, equipment damage and casualties can occur in serious cases, and great loss is caused to the production and operation of a steel mill, but no standard or standard treatment flow and method are found in China at present.
Disclosure of Invention
In view of the above, the present invention aims to provide a method for treating inter-tundish steel infiltration, which is used for normalizing the inter-tundish steel infiltration treatment process.
In order to achieve the above purpose, the present invention provides the following technical solutions: a method for treating steel infiltration between continuous casting tundish plates, which uses a tool blind plate and a plugging cone, comprises the following steps:
s1, when steel seepage occurs between tundish plates, firstly, the ladle pouring operation should be stopped immediately;
s2, judging whether the steel flow is out of control or not: the flow is smaller, large-area decompression diffusion or splashing does not occur, and the non-control can be judged; the flow is large, large-area diffusion and splashing occur, and direct burn risks can be generated for close-range operators, and the operators can be regarded as out of control;
s21, uncontrolled handling of steel flow: the method has the advantages that other flows can be blinded without burn risk, the steel seepage flow is not treated, and the tundish car is started to be above the accident slag basin in an accident running control mode;
s22, steel loss control treatment: the steel seepage flow blind plate is arranged on the slideway, the flow is blocked by using the blocking cone, if 2 blocking cones are used, the flow is still not blocked, other flows can be firstly blocked under the condition of no burn risk, and then the tundish car is started to be arranged above the accident slag basin in an accident running control mode;
s3, once the tundish reaches the upper part of the accident slag basin, immediately throwing the emergency chill into the tundish from the corresponding or nearby flow holes above the tundish cover, and rapidly cooling and blocking the flow;
optionally, the emergency chill is a green block or other cooling material.
Alternatively, the molten steel flowing into the accident slag pot must be covered with tundish covering slag to protect the tundish car.
Optionally, the volume of the accident slag basin is larger than that of the molten steel in the tundish, so that the molten steel is ensured not to overflow.
The invention has the beneficial effects that: the treatment method for the steel infiltration between the continuous casting tundish plates standardizes the treatment flow and the treatment method for the steel infiltration between the continuous casting tundish plates, prevents the expansion of production safety accidents and ensures stable and smooth production.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objects and other advantages of the invention may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. The following embodiments are merely illustrative of the basic concepts of the present invention, and the following embodiments and features of the embodiments may be combined with each other without conflict.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
A method for treating steel infiltration between continuous casting tundish plates, which uses a tool blind plate and a plugging cone, comprises the following steps:
s1, when steel seepage occurs between tundish plates, firstly, the ladle pouring operation should be stopped immediately;
s2, judging whether the steel flow is out of control or not: the flow is smaller, large-area decompression diffusion or splashing does not occur, and the non-control can be judged; the flow is large, large-area diffusion and splashing occur, and direct burn risks can be generated for close-range operators, and the operators can be regarded as out of control;
s21, uncontrolled handling of steel flow: the method has the advantages that other flows can be blinded without burn risk, the steel seepage flow is not treated, and the tundish car is started to be above the accident slag basin in an accident running control mode;
s22, steel loss control treatment: the steel seepage flow blind plate is arranged on the slideway, the flow is blocked by using the blocking cone, if 2 blocking cones are used, the flow is still not blocked, other flows can be firstly blocked under the condition of no burn risk, and then the tundish car is started to be arranged above the accident slag basin in an accident running control mode;
s3, once the tundish reaches the upper part of the accident slag basin, immediately throwing an emergency chill (cooling material such as pig iron block and the like) into the tundish from a corresponding or nearby flow hole above the tundish cover, and rapidly cooling and blocking the flow;
in this embodiment, the molten steel flowing into the accident slag pot must be covered with tundish covering slag to protect the tundish car.
In the embodiment, the volume of the accident slag basin is larger than that of the molten steel in the tundish, so that the molten steel is ensured not to overflow.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the present invention, which is intended to be covered by the claims of the present invention.
Claims (4)
1. A method for treating steel infiltration between continuous casting tundish plates, which uses a tool blind plate and a plugging cone, is characterized by comprising the following steps:
s1, when steel seepage occurs between tundish plates, firstly, the ladle pouring operation should be stopped immediately;
s2, judging whether the steel flow is out of control or not: the flow is smaller, large-area decompression diffusion or splashing does not occur, and the non-control can be judged; the flow is large, large-area diffusion and splashing occur, and direct burn risks can be generated for close-range operators, and the operators can be regarded as out of control;
s21, uncontrolled handling of steel flow: the method has the advantages that other flows can be blinded without burn risk, the steel seepage flow is not treated, and the tundish car is started to be above the accident slag basin in an accident running control mode;
s22, steel loss control treatment: the steel seepage flow blind plate is arranged on the slideway, the flow is blocked by using the blocking cone, if 2 blocking cones are used, the flow is still not blocked, other flows can be firstly blocked under the condition of no burn risk, and then the tundish car is started to be arranged above the accident slag basin in an accident running control mode;
s3, once the tundish reaches the upper part of the accident slag basin, immediately throwing the emergency chill into the tundish from the corresponding or nearby flow holes above the tundish cover, and rapidly cooling and blocking the flow.
2. The method for treating steel infiltration between continuous casting tundish plates according to claim 1, characterized by: the emergency chill is a green block or other cooling material.
3. The method for treating steel infiltration between continuous casting tundish plates according to claim 1, characterized by: molten steel flowing into the accident slag pot must be covered with tundish covering slag to protect the tundish car.
4. The method for treating steel infiltration between continuous casting tundish plates according to claim 1, characterized by: the volume of the accident slag basin is larger than that of the molten steel in the tundish, so that the molten steel is ensured not to overflow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210443654.6A CN114799094B (en) | 2022-04-25 | 2022-04-25 | Treatment method for steel infiltration between continuous casting tundish plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210443654.6A CN114799094B (en) | 2022-04-25 | 2022-04-25 | Treatment method for steel infiltration between continuous casting tundish plates |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114799094A CN114799094A (en) | 2022-07-29 |
| CN114799094B true CN114799094B (en) | 2023-11-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210443654.6A Active CN114799094B (en) | 2022-04-25 | 2022-04-25 | Treatment method for steel infiltration between continuous casting tundish plates |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114799094B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06285603A (en) * | 1993-04-06 | 1994-10-11 | Toshiba Corp | Device for predicting nozzle clogging in continuous casting process line |
| KR20000008605U (en) * | 1998-10-23 | 2000-05-15 | 이구택 | Automatic removal of coagulation in tundish nozzle |
| KR20120024195A (en) * | 2010-09-06 | 2012-03-14 | 주식회사 포스코 | Apparatus and mothod for closing of entry nozzle in tundish |
| CN202367196U (en) * | 2011-12-16 | 2012-08-08 | 宝山钢铁股份有限公司 | Continuous casting slide gate nozzle |
| CN203124729U (en) * | 2013-03-25 | 2013-08-14 | 卫辉市川亚机械制造有限公司 | Fast accident interception mechanism for steelmaking continuous casting tundish |
| CN108326251A (en) * | 2017-12-04 | 2018-07-27 | 新疆八钢铁股份有限公司 | Steel-making enterprise billet caster tundish uses the method that metering nozzle is cast |
| CN110064747A (en) * | 2019-04-26 | 2019-07-30 | 武汉钢铁有限公司 | A kind of device and method preventing the excessive steel of continuous cast mold |
| CN110605380A (en) * | 2019-09-23 | 2019-12-24 | 山东钢铁股份有限公司 | Slab caster and slab tundish quick flow blocking device thereof |
| CN110935872A (en) * | 2019-11-18 | 2020-03-31 | 柳州钢铁股份有限公司 | Blocking cone for tundish nozzle and nozzle blocking method |
| CN212526040U (en) * | 2019-12-12 | 2021-02-12 | 红河钢铁有限公司 | Tundish flow blocking device |
| CN113145810A (en) * | 2021-02-01 | 2021-07-23 | 南京钢铁股份有限公司 | Operation method for preventing steel infiltration of continuous slab casting butt joint billet |
| CN215033460U (en) * | 2020-12-22 | 2021-12-07 | 柳州钢铁股份有限公司 | Outburst accident prevention expansion control system of multi-flow square billet casting machine |
| CN215090665U (en) * | 2020-12-31 | 2021-12-10 | 柳州钢铁股份有限公司 | Square billet tundish accident plug |
-
2022
- 2022-04-25 CN CN202210443654.6A patent/CN114799094B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06285603A (en) * | 1993-04-06 | 1994-10-11 | Toshiba Corp | Device for predicting nozzle clogging in continuous casting process line |
| KR20000008605U (en) * | 1998-10-23 | 2000-05-15 | 이구택 | Automatic removal of coagulation in tundish nozzle |
| KR20120024195A (en) * | 2010-09-06 | 2012-03-14 | 주식회사 포스코 | Apparatus and mothod for closing of entry nozzle in tundish |
| CN202367196U (en) * | 2011-12-16 | 2012-08-08 | 宝山钢铁股份有限公司 | Continuous casting slide gate nozzle |
| CN203124729U (en) * | 2013-03-25 | 2013-08-14 | 卫辉市川亚机械制造有限公司 | Fast accident interception mechanism for steelmaking continuous casting tundish |
| CN108326251A (en) * | 2017-12-04 | 2018-07-27 | 新疆八钢铁股份有限公司 | Steel-making enterprise billet caster tundish uses the method that metering nozzle is cast |
| CN110064747A (en) * | 2019-04-26 | 2019-07-30 | 武汉钢铁有限公司 | A kind of device and method preventing the excessive steel of continuous cast mold |
| CN110605380A (en) * | 2019-09-23 | 2019-12-24 | 山东钢铁股份有限公司 | Slab caster and slab tundish quick flow blocking device thereof |
| CN110935872A (en) * | 2019-11-18 | 2020-03-31 | 柳州钢铁股份有限公司 | Blocking cone for tundish nozzle and nozzle blocking method |
| CN212526040U (en) * | 2019-12-12 | 2021-02-12 | 红河钢铁有限公司 | Tundish flow blocking device |
| CN215033460U (en) * | 2020-12-22 | 2021-12-07 | 柳州钢铁股份有限公司 | Outburst accident prevention expansion control system of multi-flow square billet casting machine |
| CN215090665U (en) * | 2020-12-31 | 2021-12-10 | 柳州钢铁股份有限公司 | Square billet tundish accident plug |
| CN113145810A (en) * | 2021-02-01 | 2021-07-23 | 南京钢铁股份有限公司 | Operation method for preventing steel infiltration of continuous slab casting butt joint billet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114799094A (en) | 2022-07-29 |
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