WO2002036292A2 - Method and device for controlling the temperature of steel from the surface of the bath of a continuous casting installation up to the furnace tap - Google Patents
Method and device for controlling the temperature of steel from the surface of the bath of a continuous casting installation up to the furnace tap Download PDFInfo
- Publication number
- WO2002036292A2 WO2002036292A2 PCT/EP2001/012594 EP0112594W WO0236292A2 WO 2002036292 A2 WO2002036292 A2 WO 2002036292A2 EP 0112594 W EP0112594 W EP 0112594W WO 0236292 A2 WO0236292 A2 WO 0236292A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pan
- temperature
- steel
- distributor
- casting
- Prior art date
Links
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)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Continuous Casting (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Control Of Temperature (AREA)
- Control Of Heat Treatment Processes (AREA)
Abstract
Description
Claims
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2003-7004653A KR20030038784A (en) | 2000-11-04 | 2001-10-31 | Method and device for controlling the temperature of steel from the surface of the bath of a continuous casting installation up to the furnace tap |
JP2002539090A JP2004512958A (en) | 2000-11-04 | 2001-10-31 | Method and apparatus for controlling casting temperature from meniscus to furnace tap in continuous casting equipment |
BR0115073-1A BR0115073A (en) | 2000-11-04 | 2001-10-31 | Procedure and device for controlling the temperature of steel from the surface of the melt of a continuous casting unit to the furnace outlet |
AU2002224817A AU2002224817A1 (en) | 2000-11-04 | 2001-10-31 | Method and device for controlling the temperature of steel from the surface of the bath of a continuous casting installation up to the furnace tap |
US10/399,002 US20040031583A1 (en) | 2000-11-04 | 2001-10-31 | Method and device for controlling the temperature of steel from the surface of the bath of a continuous casting installation up to the furnace tap |
MXPA03003950A MXPA03003950A (en) | 2000-11-04 | 2001-10-31 | Method and device for controlling the temperature of steel from the surface of the bath of a continuous casting installation up to the furnace tap. |
EP01992623A EP1337366A2 (en) | 2000-11-04 | 2001-10-31 | Method and device for controlling the temperature of steel from the surface of the bath of a continuous casting installation up to the furnace tap |
HU0303371A HUP0303371A2 (en) | 2000-11-04 | 2001-10-31 | Method and device for controlling the temperature of steel from the surface of the bath of a continuous casting installation up to the furnace tap |
PL01361622A PL361622A1 (en) | 2000-11-04 | 2001-10-31 | Method and device for controlling the temperature of steel from the surface of the bath of a continuous casting installation up to the furnace tap |
CA002424368A CA2424368A1 (en) | 2000-11-04 | 2001-10-31 | Method and device for controlling the temperature of steel between the meniscus of a continuous casting machine and the tapping of the furnace |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10054760.5 | 2000-11-04 | ||
DE10054760 | 2000-11-04 | ||
DE10152201.0 | 2001-10-23 | ||
DE10152201A DE10152201A1 (en) | 2000-11-04 | 2001-10-23 | Method and device for checking the steel temperature from the casting level of a continuous caster to the tapping of the furnace |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2002036292A2 true WO2002036292A2 (en) | 2002-05-10 |
WO2002036292A3 WO2002036292A3 (en) | 2002-08-08 |
Family
ID=26007569
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2001/012594 WO2002036292A2 (en) | 2000-11-04 | 2001-10-31 | Method and device for controlling the temperature of steel from the surface of the bath of a continuous casting installation up to the furnace tap |
Country Status (13)
Country | Link |
---|---|
US (1) | US20040031583A1 (en) |
EP (1) | EP1337366A2 (en) |
JP (1) | JP2004512958A (en) |
CN (1) | CN1473081A (en) |
AU (1) | AU2002224817A1 (en) |
BR (1) | BR0115073A (en) |
CA (1) | CA2424368A1 (en) |
CZ (1) | CZ20031218A3 (en) |
HU (1) | HUP0303371A2 (en) |
MX (1) | MXPA03003950A (en) |
PL (1) | PL361622A1 (en) |
RU (1) | RU2003116517A (en) |
WO (1) | WO2002036292A2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3026586A1 (en) | 2014-11-28 | 2016-06-01 | SMS group GmbH | Simulation of the temperature distributions within the ladles of a smeltery and metal melt contained within the ladles |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5959319B2 (en) * | 2012-05-31 | 2016-08-02 | アズビル株式会社 | Symbol identification method and symbol identification device |
CN104525926B (en) * | 2014-11-26 | 2016-08-24 | 攀枝花钢城集团瑞钢工业有限公司 | Ladle roll off the production line judge method |
JP6252532B2 (en) * | 2015-03-23 | 2017-12-27 | Jfeスチール株式会社 | Apparatus and method for setting target molten steel temperature at the end of converter blowing |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08224648A (en) * | 1995-02-21 | 1996-09-03 | Sumitomo Metal Ind Ltd | Method for restraining surface defect in continuous casting |
Family Cites Families (9)
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 (en) * | 1980-01-11 | 1981-11-25 | Voest Alpine Ag | METHOD FOR CONTINUOUSLY MEASURING THE STRAND SURFACE TEMPERATURE OF A CAST STRAND AND DEVICE FOR CARRYING OUT THE METHOD |
FR2651876B1 (en) * | 1989-09-13 | 1991-12-13 | Siderurgie Fse Inst Rech | PROCESS FOR CONTINUOUSLY DETERMINING THE THICKNESS OF LIQUID DAIRY ON THE SURFACE OF A BATH OF FUSED METAL IN A METALLURGICAL CONTAINER. |
US5951164A (en) * | 1995-06-30 | 1999-09-14 | Novacast Aktiebolag | Method for contactless continuous temperature measurement of the solidification of metal alloys |
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 (en) * | 2000-06-07 | 2001-12-13 | Sms Demag Ag | Process for locally processing casting data obtained from sensors in a continuous casting plant comprises collecting measuring and control data in cooled field bus modules |
-
2001
- 2001-10-31 HU HU0303371A patent/HUP0303371A2/en unknown
- 2001-10-31 EP EP01992623A patent/EP1337366A2/en not_active Withdrawn
- 2001-10-31 PL PL01361622A patent/PL361622A1/en unknown
- 2001-10-31 JP JP2002539090A patent/JP2004512958A/en not_active Withdrawn
- 2001-10-31 CA CA002424368A patent/CA2424368A1/en not_active Abandoned
- 2001-10-31 RU RU2003116517/02A patent/RU2003116517A/en not_active Application Discontinuation
- 2001-10-31 US US10/399,002 patent/US20040031583A1/en not_active Abandoned
- 2001-10-31 BR BR0115073-1A patent/BR0115073A/en not_active IP Right Cessation
- 2001-10-31 WO PCT/EP2001/012594 patent/WO2002036292A2/en not_active Application Discontinuation
- 2001-10-31 AU AU2002224817A patent/AU2002224817A1/en not_active Abandoned
- 2001-10-31 CZ CZ20031218A patent/CZ20031218A3/en unknown
- 2001-10-31 MX MXPA03003950A patent/MXPA03003950A/en not_active Application Discontinuation
- 2001-10-31 CN CNA018184928A patent/CN1473081A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08224648A (en) * | 1995-02-21 | 1996-09-03 | Sumitomo Metal Ind Ltd | Method for restraining surface defect in continuous casting |
Non-Patent Citations (2)
Title |
---|
BANNENBERG N: "TEMPERATURUEBERWACHUNG DER STAHLSCHMELZE IN EINEM LD-STAHLWERK" STAHL UND EISEN, VERLAG STAHLEISEN GMBH. DUSSELDORF, DE, Bd. 114, Nr. 9, 16. September 1994 (1994-09-16), Seiten 77-82,142, XP000467519 ISSN: 0340-4803 * |
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 01, 31. Januar 1997 (1997-01-31) & JP 08 224648 A (SUMITOMO METAL IND LTD), 3. September 1996 (1996-09-03) * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3026586A1 (en) | 2014-11-28 | 2016-06-01 | SMS group GmbH | Simulation of the temperature distributions within the ladles of a smeltery and metal melt contained within the ladles |
DE102014224334A1 (en) | 2014-11-28 | 2016-06-02 | Sms Group Gmbh | Simulation of temperature distributions within pans of a metallurgical plant and within molten metal contained in the pans |
Also Published As
Publication number | Publication date |
---|---|
US20040031583A1 (en) | 2004-02-19 |
PL361622A1 (en) | 2004-10-04 |
RU2003116517A (en) | 2004-12-10 |
BR0115073A (en) | 2003-07-29 |
AU2002224817A1 (en) | 2002-05-15 |
CA2424368A1 (en) | 2003-03-28 |
WO2002036292A3 (en) | 2002-08-08 |
HUP0303371A2 (en) | 2004-01-28 |
EP1337366A2 (en) | 2003-08-27 |
CZ20031218A3 (en) | 2003-10-15 |
MXPA03003950A (en) | 2004-05-24 |
JP2004512958A (en) | 2004-04-30 |
CN1473081A (en) | 2004-02-04 |
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