CN104525926A - Method for determining moving steel ladle from production line - Google Patents
Method for determining moving steel ladle from production line Download PDFInfo
- Publication number
- CN104525926A CN104525926A CN201410704685.8A CN201410704685A CN104525926A CN 104525926 A CN104525926 A CN 104525926A CN 201410704685 A CN201410704685 A CN 201410704685A CN 104525926 A CN104525926 A CN 104525926A
- Authority
- CN
- China
- Prior art keywords
- ladle
- production line
- bag wall
- overhaul
- residual thickness
- 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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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
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- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16Z—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS, NOT OTHERWISE PROVIDED FOR
- G16Z99/00—Subject matter not provided for in other main groups of this subclass
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention discloses a method for determining moving a steel ladle from a production line, and aims at solving the problem that whether to move the steel ladle from the production line for major repair or minor overhaul cannot be quantitatively and accurately determined in prior art. The method for determining moving the steel ladle from the production comprises the steps of building a correspondence relationship between an age of the steel ladle and the temperature of the ladle wall; building the correspondence relationship between the age of the steel ladle and the residual thickness of wearable material of the ladle wall; obtaining the correspondence relationship between the temperature of the ladle wall and the residual thickness of the wearable material of the ladle wall; creating a relationship model between the temperature of the ladle wall and the residual thickness of the wearable material of the ladle wall; determining the residual thickness of the wearable material of the ladle wall by the inverse method according to the temperature of the ladle wall of the steel ladle in use and the relationship module; comparing with the requirements for moving the steel ladle for major overhaul or minor overhaul in the process; then determining whether to move the steel ladle from the production line for major repair or minor overhaul. With the adoption of the method, the problem the steel ladle is early moved from the production line for major overhaul or minor overhaul due to inaccurate visual determining, resulting in increase of the production cost can be avoided; in addition, the problem that the steel ladle is too late for being moved from the production line for major overhaul or minor overhaul, and accordingly steel passes through the steel ladle wall to cause production accident, can be avoided.
Description
Technical field
The present invention relates to a kind of ladle roll off the production line judge method, belong to metallurgical field of steel-making.
Background technology
Ladle carries the metallurgical tank effect of forming a connecting link in molten steel furnace external refining, current steel-making external refining ladle major part working lining all adopts magnesia carbon brick to build by laying bricks or stones, based in external refining process because electrode arc light when the operation of technological requirement Argon and energising heat up causes erosion to resistance to material, ladle only accurately could detect bag wall (containing molten bath and slag lining) magnesia carbon brick thickness in cold repair process, ladle can only with the relevant statistics in use procedure and visual inspection ladle bag condition under normal turnover or hot repair state, rule of thumb judge that ladle is the need of overhaul or the light maintenance of rolling off the production line, cannot realize quantitatively judging that ladle is the need of overhaul or the light maintenance of rolling off the production line exactly.
In addition, the operation change of external refining process also can be corroded the resistance to material of ladle and be affected, and further increases the difficulty accurately judged ladle wall magnesia carbon brick residual thickness, cannot provide decision-making foundation for whether rational judgment ladle rolls off the production line.
Summary of the invention
Technical problem to be solved by this invention be to provide a kind of ladle roll off the production line judge method, realize the object whether reaching roll off the production line overhaul or light maintenance requirement in the online use procedure of rational judgment ladle.
The technical solution used in the present invention is: ladle rolls off the production line decision method, comprises the following steps:
A, set up corresponding relation between ladle bag age and bag wall temperature, set up the corresponding relation between ladle bag age and the bag wall residual thickness of resistance to material, described bag wall temperature is the maximum temperature outside the ladle wall in ladle use procedure;
B, obtain the corresponding relation between bag wall temperature and the bag wall residual thickness of resistance to material according to two groups of relations of step A, set up the relational model between bag wall temperature and magnesia carbon brick residual thickness;
C, use according to ladle in bag wall temperature and relational model in step B determine the bag wall residual thickness of resistance to material, and this bag wall residual thickness of resistance to material and technological requirement ladle rolled off the production line overhaul or light maintenance scope compare, and judge that ladle is the need of overhaul or the light maintenance of rolling off the production line.
When steel-making furnace outer refining process is constant, also large change can not be there is in molten steel control temperature, ladle in use, along with the increase of ladle access times, the thickness of ladle wall magnesia carbon brick is also thereupon thinning gradually, the bag wall residual thickness of resistance to material is thinner, the heat conducting thickness of molten steel is thinner, the heat transfer of bag wall temperature and molten steel is quicker, bag wall temperature heats up faster, the final temperature of bag wall temperature is higher, and the change of bag wall temperature can reflect the change of the ladle thickness of resistance to material, determines that the bag wall residual thickness of resistance to material is rational by bag wall temperature.
Further, described ladle bag age is absolute use heat, definitely service time, relative usage heat or the relative usage time that ladle uses.
Further, ladle determines local damage critical regions by range estimation in overhaul or light maintenance process, uses the temperature in middle monitoring well damage region as bag wall temperature.
Ladle determines local damage critical regions by range estimation in overhaul or light maintenance process, these regions are that the residual thickness of resistance to material is less, easy damage and need to roll off the production line overhaul or light maintenance, the well damage region that in using, monitoring is corresponding which enhances the specific aim of temperature monitoring in use, as long as can obtain bag wall temperature.
The invention has the beneficial effects as follows: provide a kind of and determine the bag wall residual thickness of resistance to material by ladle wall temperature, rational judgment ladle is the need of the method for roll off the production line overhaul or light maintenance again, avoid by range estimation micro-judgment inaccurate, cause ladle to roll off the production line too early overhaul or light maintenance, cause the problem that production cost rises; It also avoid ladle excessively to roll off the production line evening overhaul or light maintenance, cause ladle wall to wear steel, occur the problem of production accident.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is further illustrated.
Ladle rolls off the production line decision method, comprises the following steps:
A, definitely use the statistics of heat and bag wall temperature according to ladle, set up the corresponding relation between ladle bag age and bag wall temperature; To the bag wall residual thickness of resistance to material during each cold repair of ladle, such as magnesia carbon brick residual thickness is added up, and sets up the corresponding relation between ladle bag age and magnesia carbon brick residual thickness; Wherein, described bag wall temperature is the maximum temperature outside ladle wall in ladle use procedure.
B, according to group relation of two in step A, obtain the corresponding relation between bag wall temperature and the bag wall residual thickness of resistance to material, set up the relational model between bag wall temperature and magnesia carbon brick residual thickness.
C, monitoring ladle bag wall temperature in use, the bag wall temperature in such as ladle slag line region, get the maximum of each monitor temperature, according to the relational model in step B, counter pushing away determines the bag wall residual thickness of resistance to material, overhaul or the light maintenance scope of the bag wall residual thickness of resistance to material of this reckoning and technological requirement ladle being rolled off the production line again compares, and judges that ladle is the need of overhaul or the light maintenance of rolling off the production line.
Because bag wall temperature in step B and the corresponding relation between the bag wall residual thickness of resistance to material are point-to-point relations, can linear interpolation be adopted, then carry out the relational model that linear fit obtains between bag wall temperature and magnesia carbon brick residual thickness.The relational model of step B is not changeless, for different production technologies, ladle type, and this model respective change, but all can according to the relational model of the specific production technology of method establishment of the present invention.
Steel of the present invention provides a kind of method being judged the ladle residual thickness of resistance to material by bag wall temperature, and method is simple and practical, can judge the bag wall residual thickness of resistance to material more exactly, for judging that ladle provides the foundation of quantification the need of roll off the production line overhaul or light maintenance.When production technology does not become, constantly can improve the model in step B, make the bag wall residual thickness of resistance to material that is back-calculated to obtain more accurate.
Claims (3)
1. ladle roll off the production line judge method, it is characterized in that: comprise the following steps:
A, set up corresponding relation between ladle bag age and bag wall temperature, set up the corresponding relation between ladle bag age and the bag wall residual thickness of resistance to material, described bag wall temperature is the maximum temperature outside the ladle wall in ladle use procedure;
B, obtain the corresponding relation between bag wall temperature and the bag wall residual thickness of resistance to material according to two groups of relations of step A, set up the relational model between bag wall temperature and magnesia carbon brick residual thickness;
C, use according to ladle in bag wall temperature and relational model in step B determine the bag wall residual thickness of resistance to material, and this bag wall residual thickness of resistance to material and technological requirement ladle rolled off the production line overhaul or light maintenance scope compare, and judge that ladle is the need of overhaul or the light maintenance of rolling off the production line.
2. ladle as claimed in claim 1 rolls off the production line the method judged, it is characterized in that: described ladle bag age is absolute use heat, definitely service time, relative usage heat or the relative usage time that ladle uses.
3. ladle as claimed in claim 1 or 2 rolls off the production line the method judged, it is characterized in that: ladle determines local damage critical regions by range estimation in overhaul or light maintenance process, uses the temperature in middle monitoring well damage region as bag wall temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410704685.8A CN104525926B (en) | 2014-11-26 | 2014-11-26 | Ladle roll off the production line judge method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410704685.8A CN104525926B (en) | 2014-11-26 | 2014-11-26 | Ladle roll off the production line judge method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104525926A true CN104525926A (en) | 2015-04-22 |
| CN104525926B CN104525926B (en) | 2016-08-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410704685.8A Expired - Fee Related CN104525926B (en) | 2014-11-26 | 2014-11-26 | Ladle roll off the production line judge method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104525926B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106595872A (en) * | 2016-12-21 | 2017-04-26 | 武汉钢铁股份有限公司 | Method for preventing ladle slag line leakage by infrared temperature measuring technology |
| CN112823974A (en) * | 2019-11-21 | 2021-05-21 | 上海梅山钢铁股份有限公司 | Intelligent ladle matching management method for steel ladles |
| TWI733385B (en) * | 2020-03-20 | 2021-07-11 | 中國鋼鐵股份有限公司 | Method for predicting reusable times of ladle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2424368A1 (en) * | 2000-11-04 | 2003-03-28 | Sms Demag Aktiengesellschaft | Method and device for controlling the temperature of steel between the meniscus of a continuous casting machine and the tapping of the furnace |
| CN101152668A (en) * | 2006-09-28 | 2008-04-02 | 上海梅山钢铁股份有限公司 | Method for centralized monitoring of continuous casting production working procedure of steel-smelting |
| JP2010017756A (en) * | 2008-07-14 | 2010-01-28 | Kobe Steel Ltd | Method for using ladle |
| CN202498193U (en) * | 2012-02-01 | 2012-10-24 | 上海安可科技有限公司 | Device for detecting thickness of ladle lining on trolley |
| CN103084566A (en) * | 2011-11-07 | 2013-05-08 | 上海宝信软件股份有限公司 | Steel ladle regulation and control system |
-
2014
- 2014-11-26 CN CN201410704685.8A patent/CN104525926B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2424368A1 (en) * | 2000-11-04 | 2003-03-28 | Sms Demag Aktiengesellschaft | Method and device for controlling the temperature of steel between the meniscus of a continuous casting machine and the tapping of the furnace |
| CN101152668A (en) * | 2006-09-28 | 2008-04-02 | 上海梅山钢铁股份有限公司 | Method for centralized monitoring of continuous casting production working procedure of steel-smelting |
| JP2010017756A (en) * | 2008-07-14 | 2010-01-28 | Kobe Steel Ltd | Method for using ladle |
| CN103084566A (en) * | 2011-11-07 | 2013-05-08 | 上海宝信软件股份有限公司 | Steel ladle regulation and control system |
| CN202498193U (en) * | 2012-02-01 | 2012-10-24 | 上海安可科技有限公司 | Device for detecting thickness of ladle lining on trolley |
Non-Patent Citations (1)
| Title |
|---|
| 郑新友: "应用激光测厚仪提高转炉炉龄和钢包包龄", 《国外耐火材料》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106595872A (en) * | 2016-12-21 | 2017-04-26 | 武汉钢铁股份有限公司 | Method for preventing ladle slag line leakage by infrared temperature measuring technology |
| CN112823974A (en) * | 2019-11-21 | 2021-05-21 | 上海梅山钢铁股份有限公司 | Intelligent ladle matching management method for steel ladles |
| TWI733385B (en) * | 2020-03-20 | 2021-07-11 | 中國鋼鐵股份有限公司 | Method for predicting reusable times of ladle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104525926B (en) | 2016-08-24 |
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Granted publication date: 20160824 Termination date: 20161126 |