EP1337366A2 - Verfahren und vorrichtung zur kontrolle der stahltemperatur vom giessspiegel einer stranggiessanlage bis zum ofenabstich - Google Patents
Verfahren und vorrichtung zur kontrolle der stahltemperatur vom giessspiegel einer stranggiessanlage bis zum ofenabstichInfo
- Publication number
- EP1337366A2 EP1337366A2 EP01992623A EP01992623A EP1337366A2 EP 1337366 A2 EP1337366 A2 EP 1337366A2 EP 01992623 A EP01992623 A EP 01992623A EP 01992623 A EP01992623 A EP 01992623A EP 1337366 A2 EP1337366 A2 EP 1337366A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- pan
- temperature
- steel
- distributor
- casting
- 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.)
- Withdrawn
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 54
- 239000010959 steel Substances 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000009749 continuous casting Methods 0.000 title claims abstract description 13
- 238000009434 installation Methods 0.000 title 1
- 238000009847 ladle furnace Methods 0.000 claims abstract description 19
- 238000005272 metallurgy Methods 0.000 claims abstract description 8
- 238000005266 casting Methods 0.000 claims description 48
- 238000009826 distribution Methods 0.000 claims description 15
- 230000005855 radiation Effects 0.000 claims description 12
- 238000010079 rubber tapping Methods 0.000 claims description 12
- 238000012384 transportation and delivery Methods 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000009628 steelmaking Methods 0.000 claims description 2
- 239000000155 melt Substances 0.000 description 4
- 238000013439 planning Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000009489 vacuum treatment Methods 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000005654 stationary process Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000011282 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
- B22D11/16—Controlling or regulating processes or operations
-
- 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
- B22D11/16—Controlling or regulating processes or operations
- B22D11/18—Controlling or regulating processes or operations for pouring
Definitions
- the invention relates to a method and a device for controlling the steel temperature from the casting level of a continuous casting mold over the area of the entire secondary metallurgy with a process stage determining the final temperature, such as a ladle furnace, up to the tapping of a steelmaking process.
- the steel temperature in the mold level is of essential importance with regard to the steel quality (surface and interior quality) and the casting reliability.
- the invention has for its object to provide a method and an apparatus which make it possible, independently of these numerous influencing variables, to plan and control the temperature travel of a melt between the steel temperature in the mold level and the furnace tapping and "online".
- Figure 1 shows the process and production chain between furnace tapping and casting level in the continuous casting mold
- Figure 2 shows the temperature travel or the temperature underflow of the steel over the process time for the process chain, starting from the mold level in the mold over the ladle furnace to the furnace racking;
- Figure 3 in two partial images 3a and 3b, for example, a melt planning.
- the distributor (3) and the pan (4.3) can be regarded as a heat exchanger, the specific heat data of which is determined by the type, age and state of wear of the lining.
- the desired steel temperature TML Tu + X ° C (2.1) is assumed and the desired steel temperature in the distributor (3.1) is determined for a planned casting speed and a planned casting format.
- the distributor temperature (3.1) is set accordingly by knowing the temperature loss (4.1 .1) between the ladle furnace and the distributor.
- a melt planning is shown in Figure 3, starting from the temperature of the steel in the mold level (2.1), expressed as the equivalent liquid temperature in the distributor T 0 M (3.1.) With auxiliary temperatures + 5, 10, 15, 20 ° C (3.1.1 ), depending on the casting speed (6) - Part 3a - up to the delivery temperature z.
- the delivery temperature of the steel at the ladle furnace is determined by the ladle history (7) with its two main areas of influence
- FIG. 4 shows a suitable pan detection system (8) on the basis of coded intrinsic radiation of the pan wall on a radiation sensor (receiver) (8.1 .2) by means of a perforated plate (8.1.1).
- pan history (7) is therefore composed
- the pan goes through various treatments such as cleaning (7.2.1), preparing the slide for the next use (7.2.2).
- the pan can also be removed from the pan cycle in order to be heated at a heating stand (7.5) when there are long periods of idleness, or to be reloaded at a pan wall stand (7.6).
- the pan cycle (7.4) is used to determine the pan history (7) relevant locations, the pan detection system (8), preferably by means of a coded pan radiation (8.1), which is based on the radiation of the pan installed.
- the movement and the differentiated time sequences in the areas “pan full” (7.1) "pan empty” (7.2) can be recorded and then "online” the temperature losses (4.1.1) between the LF and the distributor on the basis to place this data acquisition in a functional context.
- FIG. 2 shows the temperature travel of a melt from the electric furnace (5.2) or BOF (5.1) via the ladle furnace, LF-ex (4.1) to the casting level (2) in the mold (1).
- the planned steel temperature in the mold level (2.1) gives the basis for temperature planning in the manifold and on the ladle furnace LF-ex (4.1).
- the jump in temperature from the casting level in the distributor (9) or the temperature loss of the steel from the distribution level in the casting level is essentially determined by the casting speed (6) and casting performance, i. H. the solidification thickness and casting width.
- the jump in temperature from the distributor to the ladle furnace (4.1.1), on the other hand, is essentially determined by the history of the ladle (7) and the history of the distributor (3.2).
- Figure 3 is divided into sub-images a and b.
- the picture shows how the temperature losses depend on the dwell time of the steel in the pan (7.1) and the distribution preheating temperature (3.2.1) both for the first pan of a sequence and for subsequent pans. These temperature losses also depend on the remaining pan history (7) and can be determined “online” using the described method.
- FIG. 4 shows the pan detection system (8) on the basis of coded intrinsic radiation (8.1) with the aid of a perforated plate (8.1.1), which is generated by one or more radiation sensors (8.1) which are located at strategic points in the pan cycle (7.4 ) are placed, is detected.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Control Of Heat Treatment Processes (AREA)
- Control Of Temperature (AREA)
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10054760 | 2000-11-04 | ||
| DE10054760 | 2000-11-04 | ||
| DE10152201A DE10152201A1 (de) | 2000-11-04 | 2001-10-23 | Verfahren und Vorrichtung zur Kontrolle der Stahltemperatur vom Gießspiegel einer Stranggießanlage bis zum Ofenabstich |
| DE10152201 | 2001-10-23 | ||
| PCT/EP2001/012594 WO2002036292A2 (de) | 2000-11-04 | 2001-10-31 | Verfahren und vorrichtung zur kontrolle der stahltemperatur vom giessspiegel einer stranggiessanlage bis zum ofenabstich |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1337366A2 true EP1337366A2 (de) | 2003-08-27 |
Family
ID=26007569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01992623A Withdrawn EP1337366A2 (de) | 2000-11-04 | 2001-10-31 | Verfahren und vorrichtung zur kontrolle der stahltemperatur vom giessspiegel einer stranggiessanlage bis zum ofenabstich |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US20040031583A1 (pt) |
| EP (1) | EP1337366A2 (pt) |
| JP (1) | JP2004512958A (pt) |
| CN (1) | CN1473081A (pt) |
| AU (1) | AU2002224817A1 (pt) |
| BR (1) | BR0115073A (pt) |
| CA (1) | CA2424368A1 (pt) |
| CZ (1) | CZ20031218A3 (pt) |
| HU (1) | HUP0303371A2 (pt) |
| MX (1) | MXPA03003950A (pt) |
| PL (1) | PL361622A1 (pt) |
| RU (1) | RU2003116517A (pt) |
| WO (1) | WO2002036292A2 (pt) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5959319B2 (ja) * | 2012-05-31 | 2016-08-02 | アズビル株式会社 | 記号識別方法および記号識別装置 |
| CN104525926B (zh) * | 2014-11-26 | 2016-08-24 | 攀枝花钢城集团瑞钢工业有限公司 | 钢包下线判定的方法 |
| DE102014224334A1 (de) | 2014-11-28 | 2016-06-02 | Sms Group Gmbh | Simulierung von Temperaturverteilungen innerhalb von Pfannen eines Hüttenwerks und innerhalb von in den Pfannen enthaltener Metallschmelze |
| JP6252532B2 (ja) * | 2015-03-23 | 2017-12-27 | Ｊｆｅスチール株式会社 | 転炉吹錬終了時目標溶鋼温度設定装置及びその方法 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3797310A (en) * | 1972-02-28 | 1974-03-19 | Steel Corp | Temperature sensing device |
| US4133036A (en) * | 1976-02-26 | 1979-01-02 | Republic Steel Corporation | Method and system for monitoring a physical condition of a medium |
| US4279151A (en) * | 1979-08-07 | 1981-07-21 | Bethlehem Steel Corporation | Temperature measuring system |
| AT364980B (de) * | 1980-01-11 | 1981-11-25 | Voest Alpine Ag | Verfahren zum kontinuierlichen messen der strangoberflaechentemperatur eines gussstranges sowie einrichtung zur durchfuehrung des verfahrens |
| FR2651876B1 (fr) * | 1989-09-13 | 1991-12-13 | Siderurgie Fse Inst Rech | Procede pour determiner en continu l'epaisseur du laitier liquide a la surface d'un bain de metal en fusion dans un recipient metallurgique. |
| JP2950188B2 (ja) * | 1995-02-21 | 1999-09-20 | 住友金属工業株式会社 | 連続鋳造における表面欠陥の抑制方法 |
| ATE282199T1 (de) * | 1995-06-30 | 2004-11-15 | Novacast Ab | Verfahren zur kontaktlosen kontinuierlichen temperaturmessung der aushärtung von metalllegierungen |
| TW337553B (en) * | 1995-12-20 | 1998-08-01 | Voest Alpine Ind Anlagen | Method for determination of electromagnetic waves originating from a melt |
| US5918473A (en) * | 1997-05-09 | 1999-07-06 | Alcan International Limited | Method and apparatus for measuring quenchant properties of coolants |
| DE10028304A1 (de) * | 2000-06-07 | 2001-12-13 | Sms Demag Ag | Verfahren und Vorrichtung zur dezentralen Gießdatenverarbeitung der an einer Stranggießkokille über Sensoren gewonnenen Meßdaten |
-
2001
- 2001-10-31 CN CNA018184928A patent/CN1473081A/zh active Pending
- 2001-10-31 HU HU0303371A patent/HUP0303371A2/hu unknown
- 2001-10-31 MX MXPA03003950A patent/MXPA03003950A/es not_active Application Discontinuation
- 2001-10-31 AU AU2002224817A patent/AU2002224817A1/en not_active Abandoned
- 2001-10-31 CA CA002424368A patent/CA2424368A1/en not_active Abandoned
- 2001-10-31 US US10/399,002 patent/US20040031583A1/en not_active Abandoned
- 2001-10-31 CZ CZ20031218A patent/CZ20031218A3/cs unknown
- 2001-10-31 WO PCT/EP2001/012594 patent/WO2002036292A2/de not_active Application Discontinuation
- 2001-10-31 EP EP01992623A patent/EP1337366A2/de not_active Withdrawn
- 2001-10-31 PL PL01361622A patent/PL361622A1/xx unknown
- 2001-10-31 JP JP2002539090A patent/JP2004512958A/ja not_active Withdrawn
- 2001-10-31 BR BR0115073-1A patent/BR0115073A/pt not_active IP Right Cessation
- 2001-10-31 RU RU2003116517/02A patent/RU2003116517A/ru not_active Application Discontinuation
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0236292A3 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2002036292A2 (de) | 2002-05-10 |
| JP2004512958A (ja) | 2004-04-30 |
| HUP0303371A2 (en) | 2004-01-28 |
| BR0115073A (pt) | 2003-07-29 |
| AU2002224817A1 (en) | 2002-05-15 |
| CN1473081A (zh) | 2004-02-04 |
| US20040031583A1 (en) | 2004-02-19 |
| CZ20031218A3 (cs) | 2003-10-15 |
| RU2003116517A (ru) | 2004-12-10 |
| MXPA03003950A (es) | 2004-05-24 |
| WO2002036292A3 (de) | 2002-08-08 |
| PL361622A1 (en) | 2004-10-04 |
| CA2424368A1 (en) | 2003-03-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20030215 |
|
| AK | Designated contracting states |
Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
| AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20050503 |