CN114799094A - Method for treating steel infiltration between continuous casting tundish plates - Google Patents
Method for treating steel infiltration between continuous casting tundish plates Download PDFInfo
- Publication number
- CN114799094A CN114799094A CN202210443654.6A CN202210443654A CN114799094A CN 114799094 A CN114799094 A CN 114799094A CN 202210443654 A CN202210443654 A CN 202210443654A CN 114799094 A CN114799094 A CN 114799094A
- Authority
- CN
- China
- Prior art keywords
- steel
- tundish
- flow
- continuous casting
- accident
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 43
- 239000010959 steel Substances 0.000 title claims abstract description 43
- 230000008595 infiltration Effects 0.000 title claims abstract description 18
- 238000001764 infiltration Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000009749 continuous casting Methods 0.000 title claims abstract description 17
- 239000002893 slag Substances 0.000 claims description 18
- 230000000903 blocking effect Effects 0.000 claims description 11
- 238000009792 diffusion process Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- 229910000805 Pig iron Inorganic materials 0.000 claims description 3
- 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
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011272 standard treatment Methods 0.000 description 1
- 238000006467 substitution reaction 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
The invention belongs to the field of steelmaking and continuous casting, and relates to a method for treating steel infiltration between continuous casting tundish plates.
Description
Technical Field
The invention belongs to the field of steelmaking continuous casting, and relates to a method for treating steel infiltration between continuous casting tundish plates.
Background
In the continuous casting tundish, steel infiltration between plates occurs in the casting process, if the treatment is improper, not only production interruption occurs, but fire, equipment damage and casualties can occur in serious cases, and great loss is caused to the production and operation of a steel plant, but a standard or standard treatment process and method are not found in China at present.
Disclosure of Invention
In view of the above, the present invention aims to provide a method for treating steel infiltration between continuous casting tundish plates, which standardizes the steel infiltration treatment process between continuous casting tundish plates.
In order to achieve the purpose, the invention provides the following technical scheme: a method for treating steel infiltration between continuous casting tundish plates by using tool blind plates and blocking cones comprises the following steps:
s1, when steel infiltration occurs between the middle ladles, the ladle pouring operation should be stopped immediately;
s2, judging whether the steel flow is out of control: the flow is small, large-area decompression diffusion or splashing does not occur, and the condition that the flow is not out of control can be judged; the flow is large, large-area diffusion and splashing occur, the risk of direct burn can be caused to close-distance operators, and the situation can be regarded as out of control;
s21, the steel flow is not out of control: other flows can be stopped blindly without the risk of burning, the generated steel seepage flow is not treated, and a tundish car is driven to be above the accident slag basin in an accident traveling control mode;
s22, steel loss control treatment: when the steel seepage flow blind plate is arranged on the slide way, the blind plate is opened, if the blind plate is not arranged on the slide way, the flow is blocked by using a blocking cone, if 2 blocking cones are used, the flow is still invalid, other flows can be blocked by blinding first under the condition of no burn danger, and then the tundish car is started to be arranged above the accident slag basin in an accident traveling control mode;
s3, once the tundish reaches the position above the accident slag basin, immediately throwing the emergency chilling block into the tundish from a corresponding or nearby flow hole above the tundish cover, and rapidly cooling and blocking the flow;
optionally, the emergency chiller is pig iron or other cooling material.
Optionally, the molten steel flowing into the accident slag basin must be covered with tundish covering slag to protect the tundish car.
Optionally, the volume of the accident slag basin should be larger than that of molten steel in the tundish, so that the molten steel is prevented from overflowing.
The invention has the beneficial effects that: the method for treating the steel infiltration between the continuous casting tundish plates standardizes the steel infiltration treatment process and method between the continuous casting tundish plates, prevents the production safety accidents from being enlarged, and ensures the 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 objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the following embodiments are merely illustrative of the basic idea of the present invention, and features in the following embodiments and examples may be combined with each other without conflict.
In the concrete embodiment, according to the method,
a method for treating steel infiltration between continuous casting tundish plates by using tool blind plates and blocking cones comprises the following steps:
s1, when steel infiltration occurs between the middle ladles, the ladle pouring operation should be stopped immediately;
s2, judging whether the steel flow is out of control: the flow is small, large-area decompression diffusion or splashing does not occur, and the condition that the flow is not out of control can be judged; the flow is large, large-area diffusion and splashing occur, the risk of direct burn can be caused to close-distance operators, and the situation can be regarded as out of control;
s21, the steel flow is not out of control: other flows can be stopped blindly without the risk of burning, the generated steel seepage flow is not treated, and a tundish car is driven to be above the accident slag basin in an accident traveling control mode;
s22, steel loss control treatment: when the steel seepage flow blind plate is arranged on the slide way, the blind plate is opened, if the blind plate is not arranged on the slide way, the flow is blocked by using a blocking cone, if 2 blocking cones are used, the flow is still invalid, other flows can be blocked by blinding first under the condition of no burn danger, and then the tundish car is started to be arranged above the accident slag basin in an accident traveling control mode;
s3, once the tundish reaches the position above the accident slag basin, immediately throwing emergency chilling blocks (cooling materials such as pig iron blocks) into the tundish from corresponding or nearby flow holes above the tundish cover, and rapidly cooling and blocking flow;
in this embodiment, the molten steel flowing into the emergency slag pot must be covered with tundish covering slag to protect the tundish car.
In this embodiment, the volume of the accident slag basin should be larger than the volume of the molten steel in the tundish, so as to ensure that the molten steel does not overflow.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.
Claims (4)
1. A method for treating steel infiltration between continuous casting tundish plates by using tool blind plates and blocking cones is characterized by comprising the following steps:
s1, when steel infiltration occurs between the middle ladles, the ladle pouring operation should be stopped immediately;
s2, judging whether the steel flow is out of control: the flow is small, large-area decompression diffusion or splashing does not occur, and the condition that the flow is not out of control can be judged; the flow is large, large-area diffusion and splashing occur, the risk of direct burn can be caused to close-distance operators, and the situation can be regarded as out of control;
s21, the steel flow is not out of control: other flows can be stopped blindly without the risk of burning, the generated steel seepage flow is not treated, and a tundish car is driven to be above the accident slag basin in an accident traveling control mode;
s22, steel loss control treatment: when the steel seepage flow blind plate is arranged on the slide way, the blind plate is opened, if the blind plate is not arranged on the slide way, the flow is blocked by using a blocking cone, if 2 blocking cones are used, the flow is still invalid, other flows can be blocked by blinding first under the condition of no burn danger, and then the tundish car is started to be arranged above the accident slag basin in an accident traveling control mode;
s3, once the tundish reaches the position above the accident slag basin, the emergency chilling block is immediately thrown into the tundish from a corresponding or nearby flow hole above the tundish cover, and the flow is rapidly cooled and blocked.
2. The method for treating the steel infiltration between the continuous casting tundish according to claim 1, which is characterized in that: the emergency chilling block is a pig iron block or other cooling materials.
3. The method for treating the steel infiltration between the continuous casting tundish according to claim 1, which is characterized in that: molten steel flowing into the accident slag basin must be covered with tundish covering slag to protect the tundish car.
4. The method for treating the steel infiltration between the continuous casting tundish according to claim 1, which is characterized in that: the volume of the accident slag basin is larger than that of molten steel in the tundish, so that the molten steel is prevented from overflowing.
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 true CN114799094A (en) | 2022-07-29 |
| CN114799094B CN114799094B (en) | 2023-11-07 |
Family
ID=82507363
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 |
|---|---|
| CN114799094B (en) | 2023-11-07 |
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