CN103702784B - For regulating the method for the height of the cast liquid level in the mold of continuous casting installation for casting - Google Patents
For regulating the method for the height of the cast liquid level in the mold of continuous casting installation for casting Download PDFInfo
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- CN103702784B CN103702784B CN201280038622.2A CN201280038622A CN103702784B CN 103702784 B CN103702784 B CN 103702784B CN 201280038622 A CN201280038622 A CN 201280038622A CN 103702784 B CN103702784 B CN 103702784B
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- 239000007788 liquid Substances 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 45
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 22
- 238000005266 casting Methods 0.000 title claims abstract description 12
- 238000009749 continuous casting Methods 0.000 title claims abstract description 12
- 238000009434 installation Methods 0.000 title claims abstract description 10
- 239000000835 fiber Substances 0.000 claims abstract description 43
- 229910001338 liquidmetal Inorganic materials 0.000 claims abstract description 40
- 238000001514 detection method Methods 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 238000005303 weighing Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 description 12
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000013459 approach Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000001069 Raman spectroscopy Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000253 optical time-domain reflectometry Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 206010013647 Drowning Diseases 0.000 description 1
- 241000283984 Rodentia Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 230000037431 insertion Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
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- 229910001220 stainless steel Inorganic materials 0.000 description 1
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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
- 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
- B22D11/181—Controlling or regulating processes or operations for pouring responsive to molten metal level or slag level
-
- 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
- B22D11/181—Controlling or regulating processes or operations for pouring responsive to molten metal level or slag level
- B22D11/182—Controlling or regulating processes or operations for pouring responsive to molten metal level or slag level by measuring temperature
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The present invention relates to a kind of for regulating the method for the height (h) of the cast liquid level (1) in the mold (2) of continuous casting installation for casting (3), wherein, liquid metal (4) flows in mold (2), wherein, liquid metal (4) flows out in mold (2) and can be controlled by control element (8), wherein, the volume flow flowing to the liquid metal (4) in mold (2) is measured by flow sensor (9), wherein, adjusted volume flow is carried out according to being defined in the first regulating loop of rated value, wherein, according to rated value or rated range (h
soll) be defined in the second regulating loop regulate cast liquid level (1) height (h), wherein, second adjuster (11), to the rated value of the first regulating loop prescribed volume flow, wherein, pours into a mould the actual height (h of liquid level (1)
ist) be determined at and consider preferably to realize by means of the fiber waveguide (12) of some when pouring into a mould the standing wave on liquid level (1).Therefore in an improved fashion the height of cast liquid level in the mould can be kept constant.
Description
Technical field
The present invention relates to a kind of for regulating the method for the height of the cast liquid level in the mold of continuous casting installation for casting.
Background technology
Mostly liquid metal is directed into intermediate receptacle (pans (Tundish)) from teeming ladle via hidden pipe (Schattenrohr) in the continuous casting of metal base.Then liquid metal arrives mold from intermediate receptacle via gate spool.Then the base of cast is made to discharge and deflect into horizontal line from vertical curve by means of base guide portion at the lower end of mold.
It is important in this that, the liquid metal in mold is remained on the cast liquid level (Giessspiegelhoehe) of restriction, casting process can be implemented in high quality.Mostly allow certain altitude range to this, cast liquid level in the mould allows to be within the scope of this.Go out from middle container flow and can comprise a stopper to gate spool, it to be arranged in valve seat and lifting or declining and affect the volume flow of liquid metal by it.Plug position is affected by motor element, and motor element is manipulated by adjuster, to obtain the volume flow of restriction.
When regulating desired constant volume flow in gate spool, the transfer function of the unknown of stopper is interference volume; That is when being lifted by stopper or fall the numerical value of restriction, how the volume flow of liquid metal changes that itself is unknown.Produce this problem thus at this, namely when due to blocking or due to corrosion in flow export when plug seat place changes transfer function how to change the unknown.Blocking illustrates the caking of the material in gate spool or at stopper place; Necessary pull-up stopper further thus, to realize identical metal volume flow.Rodent process corrodes the material of stopper on the other hand, makes must continue to make stopper movement further for some steel grade classes, to obtain identical metal volume flow.If there is unexpected fracture or fragmentation undesirably, cause the corresponding change in the volume flow of liquid metal and therefore cause cast liquid fluctuating in the mould.Liquid metal to the volume flow in mold adjustment for the unknown transfer function, that is the less reinforcement of adjuster mostly only can be utilized to adjust for the stopper characteristic curve of the unknown, therefore prevent unstability.Less reinforcement however reduce cast liquid fluctuating adjustable (Ausregelbarkeit).
The measuring instrument of volume flow is used in order to quick adjustment volume flow uses in gate spool by file DE102009057861A1 is known.Therefore adjusted volume flow relatively rapidly can be realized.One solution proves the favourable sensor for volume flow, and it illustrates in file WO00/58695A1.Here magnetic field is used, to determine volume flow quickly and accurately.Measured value can be realized in scope at 1/10th seconds by means of sensor described herein to detect; Resolution ratio is also very accurate, thus accurately can detect actual volume flow.File JP56091974A also studies the adjustment of the height of cast liquid level in the mould.Similar solution is drawn with by file JP2002059249A by file JP10216914A.
Except the constant adjustment of the volume flow to the liquid metal in mold, another problem is, oneself also produces the flowing effect of liquid metal in the mould, and it makes to be difficult to the cast height dimension limited in the mould to keep steady to determine.In addition, as long as it does not also solidify, the characteristic of the base poured into a mould is that cast liquid level keeps constant potential interference source.
Interference volume is on the one hand dynamically the heaving of base between base deflector roll, that is so-called protuberance (Bulging).Thus produce pump efficiency should with ensuing cast liquid fluctuating.Produce interference effect thus on the other hand, namely in mould surface, be configured with ripple, it injects mold by liquid metal and causes.That is, these ripples, by creating a deceitful impression to the measuring instrument in mold during measuring point seem to have cast liquid fluctuating at ripple.
Although by the known like this detection of file DE102008060032A1 cast liquid level in the mould, apply fiber waveguide here for this reason, it is arranged in the mould.Temperature survey such as utilizes fiber-Prague-grating approach to realize.
Although there will be a known the isolated measure that the cast liquid level that is beneficial in the mould keeps constant thus, but these measures are provided in an environment make to improve generally and regulate result to be a problem as beforely.
Summary of the invention
Therefore the object of the invention is that proposition is a kind of for regulating the method for the height of the cast liquid level in the mold of continuous casting installation for casting, it is outstanding with the efficiency improved, that is a kind of method should be proposed, even if utilize the method also can by cast liquid level as far as possible stably and in the value remaining on regulation as far as possible consistently or remain in the scope of regulation when mentioned influence amount.
This object is characterised in that by solution of the present invention, liquid metal flows to mold from teeming ladle or intermediate receptacle via at least one gate spool, wherein, can be controlled by control element (stopper) from teeming ladle or intermediate receptacle to the volume flow of the liquid metal mold, wherein, the volume flow of the liquid metal flow to mold from teeming ladle or intermediate receptacle is measured as actual volume flow by flow sensor, wherein, in the first regulating loop, the first adjuster is utilized to carry out adjusted volume flow according to the regulation of rated value when the actual volume flow measured by considering, wherein, first controller action is in control element, wherein, in the second regulating loop, the second adjuster is utilized to regulate the height of cast liquid level in the mould when considering the actual height of cast liquid level according to the regulation of rated value or rated range, wherein, the rated value of the first regulating loop prescribed volume flow given by second adjuster, wherein, temperature changing process about the height of mold is detected and when determining the effective depth of pouring into a mould liquid level based on measured temperature changing process by the peripheral part place of the some at mold, standing wave (it is flowed in mold by liquid metal and is configured on cast liquid level) considered on cast liquid level that is determined at of the actual height of cast liquid level, realizes, carry out the change procedure of detected temperatures at the peripheral region of this number and measure the height and position of the maximum of temperature, and the height and position about measured temperature maximum is averaged, value is formed, wherein, as the actual height of cast liquid level based on this mean value.
Preferably, the mensuration about the temperature changing process of the height of mold realizes by means of at least one fiber waveguide, and fiber waveguide is arranged in mold wall vertically.
Temperature profile about the height of mold can be detected and as the standard of the position of the current height for the relevant peripheral part place cast liquid level at mold based on the maximum of measured value at this for each fiber waveguide.
Preferably apply moveable stopper (Verschlussstopfen) as control element.
Advantageously use a sensor as flow sensor, it is by determining volume flow in induced field to liquid metal.
Preferably at least 4 fiber waveguides, particularly preferably even at least 8 or more fiber waveguide are arranged around the periphery of mold, it detects the temperature profile of the height about mold respectively.
Each fiber waveguide can detect at least 5, preferably at least 20 measured temperatures at this on the height of mold extends.Until the detection of 40 temperature values is possible.
Preferably specify a scope as the rated range for liquid metal in the mould, the upper seamed edge of itself and mold is in the spacing of restriction.Particularly preferably be arranged at this, for the spacing of upper seamed edge of this rated range regulation and mold between 90 and 110mm.
As long as measure for the actual height of liquid metal the value be in the scope of regulation, adjusting deviation is not preferably had to be reported to the second adjuster at this.
At this, first adjuster and the second adjuster are preferably designed so that the adjustment of the height making the adjustment of volume flow than liquid metal in the mould realizes quickly.
Correspondingly the present invention proposes, entirety (integrativ) part of filling level (Fuellstand) is in the mould by detecting Temperature Distribution in the mould and releasing actual cast liquid level and realize by means of fiber waveguide, wherein, but then regulate dynamic change fast by means of the flow measurement (volume flow measurement) at gate spool place.
The adjustment (as mentioned) of adjustment, that is integral part of liquid steel liquid level is in the mould embodied as and cast liquid level is moved in the scope limited.
Be provided with the measurement of the fiber optic mentioned by utilization about the distribution of the temperature changing process of mold heights for this reason.Especially except fiber-Prague-grating approach, optical time domain reflectometry mensuration or optimal frequency domain reflectrometry is also used herein.Mold establishes a large amount of fiber waveguide at this on periphery, and it extends vertically and has until 40 measuring points in mold wall.Each fiber waveguide is so utilized to measure " heat wave lobe (Waermekeule) ", that is about the temperature changing process of mold heights at this.These heat wave lobes can not utilize thermocouple to determine, because thermocouple is sensitive not and provide measuring point very little in mold heights.
Actual cast liquid level is calculated by test according to measured heat wave lobe.Cast liquid level illustrates particularly by the position of the maximum of heat wave lobe.Produced thus by the measurement of the distribution being distributed on the periphery of mold until 32 heat wave lobes " height mountain range (Hoehengebirgszug) " of the external boundary along mold.Therefore shape and the size of so-called " standing wave " (wave structure of the less stationary that is on cast liquid level, it injects mold by liquid metal and produces) in the mould can be measured.
All fluctuations of this standing wave are identified by the mensuration on mountain range; Therefore standing wave can detect online and illustrate.
Correspondingly pass through proposed mode and distinguish actual effective cast liquid fluctuating (it is suitable for adjusting) and the fluctuation caused by standing wave by means of the fiber waveguide measurement of distribution.
May will regulate the height fluctuation of intervening and being limited to actual cast liquid level thus.
Via this adjustment of the measurement of distribution in the mould namely for the adjustment of integral part in the mould.Should prevent cast liquid level from departing from from target zone.In order to prevent at a position " corrosion " of gate spool, the target zone (measuring from the upper seamed edge of Copper casting mould) of such as 90 to 110mm is determined in the adjustment for integral part in the mould.As long as cast liquid level to be in this scope and not to have strong fluctuation, do not carry out the adjustment intervention of the integral part about filling level.
If there is strong fluctuation in the mould, particularly it can be associated with drowning pipe (Tauchrohr) or mold, make proposed regulation strategy can balance this pointedly.
The quantity of fiber waveguide can professionally be chosen at this.(certainly under loss of significance) also can utilize an only unique fiber waveguide to carry out work in principle.In this case by fiber waveguide preferably such as vertically in copper-clad (einkupfern) to narrow side or wide side or in the hole arranging in the mould.
Preferably fiber waveguide is laid in sleeve pipe at this.Sleeve pipe such as has the external diameter of 0.5 to 2mm and the internal diameter of 0.4 to 1.8mm and is made up of stainless steel.To in mold to be introduced through in the hole that insertion manufactures for this reason or by insert in the layer that is made up of copper or nickel and to realize.
The ramp-up time of the fiber waveguide in sleeve pipe is very short (after the time far below one second, having reached the overwhelming majority of temperature final value).Until the resolution ratio of 1 DEG C is possible.
Correspondingly, can fast-changing part effective adjustment generally by volume flow measurement very fast at gate spool place and be transported to the liquid metal in mold volume flow the adjustment based on this and produce.The other adjustment of integral part in the mould and being realized by the confidential interval (time range) of observing for cast liquid level in the mould, is used the fiber waveguide of distribution to measure for this reason, uses it to the height mountain range detecting so-called standing wave.This can carry out measuring and adjustation effect as protuberance.
Known like this by the technology of fiber waveguide measuring tempeature, this is pointed out to file WO2004/015349A2 and file WO2007/079894A1.
Accompanying drawing explanation
Embodiments of the invention shown in the drawings.Wherein:
Fig. 1 schematically shows continuous casting installation for casting, wherein, except teeming ladle, intermediate receptacle and mold, is also painted with adjusting circuit figure,
Fig. 2 display according to Fig. 1 by the section A-B of mold and
Fig. 3 is schematically illustrated in the change procedure of the measured temperature on the height of mold.
Detailed description of the invention
Be painted with a part for continuous casting installation for casting 3 in FIG, continuous casting installation for casting 3 has the teeming ladle 5 for holding molten steel (Stahlschmelze) 4 in known manner.Liquid metal 4 arrives in intermediate receptacle 6 via hidden pipe 13.Again liquid metal 4 is directed into mold 2 via gate spool 7 from intermediate receptacle 6.In mold 2, liquid metal 4 forms cast liquid level 1.
In any case the height h of cast liquid level 1 this at continuous casting time should keep constant as far as possible and be in a scope, this scope has the spacing x of restriction from the upper seamed edge of mold 2.Particularly, prove suitable when cast liquid level 1 keeps the upper seamed edge from mold 2 to have during the spacing of 90 to 110mm.
Be drawn towards the volume flow of the liquid metal 4 of mold 2
affect by control element 8, the side of control element 8 (being configured to stopper) double-head arrow in FIG can be moved upward via operating element.Correspondingly, the liquid metal 4 of more or less volume can direct in mold 2 by time per unit.
In order to adjusted volume flow
be provided with the first regulating loop, it the first adjustment section (Regelstrecke) 14 (the schematic diagram see in Fig. 1) comprising the first adjuster 10 and affect by it.The rated value for volume flow is specified to the first regulating loop
soll.Actual volume flow
istdetected by flow sensor 9 (its be arranged in gate spool 7 or its).One sensor is shown here, and it comprises magnet, and its power is detected by weighing device.This power by the flow effect of liquid metal, thus can carry out measurement volumes flow thus.To the first adjuster 10 (its then correspondingly maneuvering and control element 8) regulation deviation
soll-
ist.
Be superimposed with the second regulating loop, it has the second adjuster 11 and second and regulates section 15 first regulating loop cascade shape.Regulated quantity is the operational height h of cast liquid level herein
soll, its (as set forth) value of defined should be in or be in the scope of defined.To this adjustment regulation operational height or operational height scope.Second adjuster 11 regulates section 15 to specify conditioning signal to second, wherein, inserts the first regulating loop (Cascade control) at this.From rated range h
sollin deduct actual height h
ist, make adjustment difference second adjuster 11 for existing give necessary value.
At this, the mensuration of the actual height of the cast liquid level 1 in mold 2 has corresponding meaning.Flowed in mold 2 by liquid metal 4 and construct so-called standing wave at this, it illustrates in FIG in the mould.Also in fused mass, draw some flow arrow.Flowing is responsible for causing above-mentioned standing wave.
To identify and " height mountain range " of considering this standing wave when being determined at the effective depth h of the cast liquid level 1 in mold 2 is suitable.
This is operated as follows:
On the periphery of mold 2 (as seen in Figure 2) be furnished with a large amount of fiber waveguide 12.Each fiber waveguide 12 is in metal wall portion in the vertical hole of introducing.Periphery is placed until 32 fiber waveguides 12.
Each fiber waveguide 12 such as can via the temperature changing process of the fiber-Prague elaborated further below-grating approach detection about the height h of mold 2.To this with reference to Fig. 3, be painted with such with change procedure T=f (h) of the form of " heat wave lobe " there qualitatively.Clearly can identify the maximum of temperature T.This maximum is the reliable instruction to the physical location at this peripheral part place of mold 2 cast liquid level 1.All " the heat wave lobe " that therefore can be detected by assessment in a straightforward manner detects the form of standing wave in the mould.Such as formed the active position that can detect cast liquid level 1 by corresponding mean value, approximate removing standing wave.This value be so regulate time based on actual value h
ist.
Fiber waveguide 12 typically has the diameter of such as 0.12mm; Sleeve pipe is utilized mostly to produce the diameter in the scope of 0.5mm to 2.0mm.Fiber waveguide 12 can stand temperature until the continuous loading of 800 DEG C at this.
Fiber waveguide 12 is connected with unshowned system for detecting temperature.The laser be transfused in fiber waveguide 12 is produced by means of detection system.By means of detection system the data reduction collected by optical waveguide fibre 12 become temperature and be associated from different measurement places.
Assessment such as can realize according to so-called fiber-Prague-grating approach (FBG method).Use suitable fiber waveguide at this, its impression ground (eingepraegt) obtains with the periodically variable measuring point of refractive index or the grating with such change.This periodic change of refractive index causes, and fiber waveguide illustrates dielectric liquid level according to the periodicity at measuring point place for certain wavelength.Change bragg wavelength by the variations in temperature located on one point, wherein, it is just reflected.The light not meeting Bragg condition is not significantly affected by Bragg grating.The unlike signal at different measuring position so can be distinguished from each other according to difference running time.Detailed construction and the corresponding assessment unit of such fiber-Prague-grating are usually known.The precision of local resolution is provided by the number of the measuring point of impression.The size of measuring point such as can be in the scope of 1mm to 5mm.
Alternatively, " optimal frequency domain reflection measurement " method (OTDR method) or " optical time domain reflectometry measurement " method (OFDR method) also can be used for the measurement of temperature.These methods, based on the backscattered principle of Raman of optical fiber, wherein, make use of and cause the backscattered change of the Raman of optical waveguide material in the variations in temperature at the some place of photoconduction.So locally can determine the temperature value along fiber with differentiating by means of assessment unit (such as Raman reflectometer), wherein, come average in the method in certain length of conductor.This length is approximately several centimetres.By difference running time, different measuring points is separated from each other again.Like this for the structure of system that carries out assessing according to mentioned method and required laser instrument (it produces laser in fiber waveguide) usually known.
Reference numerals list
1 cast liquid level
2 molds
3 continuous casting installation for casting
4 liquid metals (molten steel)
5 teeming ladles
6 intermediate receptacles (pans)
7 gate spools (SEN-immersion nozzle)
8 control elements
9 flow sensors
10 first adjusters
11 second adjusters
12 fiber waveguides
13 hidden pipes
14 first regulate section
15 second regulate section
H pours into a mould the height of liquid level
H
sollthe operational height of cast liquid level
H
istthe actual height of cast liquid level
the volume flow of liquid metal
sollthe rated value of volume flow
istthe actual value of volume flow
T (h) is about the temperature changing process of the height of mold
X spacing.
Claims (12)
1. for regulating a method for the height of the cast liquid level (1) in the mold (2) of continuous casting installation for casting (3),
Wherein, liquid metal (4) flows to described mold (2) from teeming ladle (5) or intermediate receptacle (6) via at least one gate spool (7),
Wherein, the volume flow flowing to the liquid metal (4) described mold (2) from described teeming ladle (5) or described intermediate receptacle (6) can be controlled by control element (8),
Wherein, the described volume flow of the liquid metal (4) flow to described mold (2) from described teeming ladle (5) or described intermediate receptacle (6) is measured as actual volume flow by flow sensor (9)
Wherein, in the first regulating loop, the first adjuster (10) is utilized to regulate described volume flow according to the regulation of rated value when the described actual volume flow measured by considering, wherein, described first adjuster (10) acts on described control element (8)
Wherein, in the second regulating loop, the second adjuster (11) is utilized to regulate the height of the described cast liquid level (1) in described mold when considering the actual height of described cast liquid level according to the regulation of rated value or rated range, wherein, described second adjuster (11) specifies the rated value of described volume flow to described first regulating loop
Wherein, temperature changing process about the height of described mold (2) is detected and when determining the effective depth of described cast liquid level (1) based on measured temperature changing process by the peripheral part place of the some at described mold (2), being determined at when considering the standing wave on described cast liquid level (1) of actual height of described cast liquid level (1) realizes, described standing wave is flowed in described mold (2) by liquid metal (4) and is configured on described cast liquid level (1)
-the peripheral region of some come detected temperatures change procedure and measure the maximum of temperature height and position and
-formed, wherein, as the actual height of described cast liquid level (1) based on described mean value about the height and position of the measured temperature maximum value that is averaged.
2. method according to claim 1, it is characterized in that, mensuration about the temperature changing process of the height of described mold (2) realizes by means of at least one fiber waveguide (12), and described fiber waveguide (12) is arranged in mold wall vertically.
3. method according to claim 1 and 2, it is characterized in that, temperature changing process about the height of described mold (2) is detected for each fiber waveguide (12) and as the standard of pouring into a mould the position of the current height of liquid level described in the relevant peripheral part place of described mold (2) based on the maximum of measured value.
4. method according to any one of claim 1 to 2, is characterized in that, moveable stopper is used as control element (8).
5. method according to any one of claim 1 to 2, is characterized in that, flow sensor (9) comprises magnet, and its power is detected by weighing device, and wherein, this power affects by the volume flow of liquid metal.
6. method according to claim 2, it is characterized in that, at least 4 fiber waveguides (12) are arranged around the periphery of described mold (2), and described fiber waveguide (12) detects the temperature changing process of the height about described mold (2) respectively.
7. method according to any one of claim 1 to 2, is characterized in that, each fiber waveguide (12) extends upper detection at least 5 measured temperatures at the height of described mold (2).
8. method according to any one of claim 1 to 2, it is characterized in that, the scope that specifies is as the operational height for the described liquid metal (4) in described mold (2), and the upper seamed edge of described scope and described mold (2) is in the spacing of restriction.
9. method according to claim 8, is characterized in that, as long as the value measured for the actual height of described liquid metal (4) is in the described scope of regulation, does not have adjusting deviation to be reported to described second adjuster (11).
10. method according to claim 2, it is characterized in that, at least 8 fiber waveguides (12) are arranged around the periphery of described mold (2), and described fiber waveguide (12) detects the temperature changing process of the height about described mold (2) respectively.
11. methods according to any one of claim 1 to 2, is characterized in that, each fiber waveguide (12) extends upper detection at least 20 measured temperatures at the height of described mold (2).
12. methods according to any one of claim 1 to 2, it is characterized in that, the scope that specifies is as the operational height for the described liquid metal (4) in described mold (2), the upper seamed edge of described scope and described mold (2) is in the spacing of restriction, wherein, for the spacing (x) of upper seamed edge of rated range regulation and described mold (2) between 90 and 110mm.
Applications Claiming Priority (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011105332 | 2011-06-07 | ||
| DE102011105332.1 | 2011-06-07 | ||
| DE102011078141 | 2011-06-27 | ||
| DE102011078141.2 | 2011-06-27 | ||
| DE102011078485.3 | 2011-06-30 | ||
| DE102011078485 | 2011-06-30 | ||
| DE201110085932 DE102011085932A1 (en) | 2011-06-07 | 2011-11-08 | Method for regulating the height of the casting mirror in a mold of a continuous casting plant |
| DE102011085932.2 | 2011-11-08 | ||
| PCT/EP2012/057972 WO2012168005A1 (en) | 2011-06-07 | 2012-05-02 | Method for regulating the height of the casting level in a mold of a continuous casting installation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103702784A CN103702784A (en) | 2014-04-02 |
| CN103702784B true CN103702784B (en) | 2015-11-25 |
Family
ID=47220469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280038622.2A Expired - Fee Related CN103702784B (en) | 2011-06-07 | 2012-05-02 | For regulating the method for the height of the cast liquid level in the mold of continuous casting installation for casting |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2718043B1 (en) |
| CN (1) | CN103702784B (en) |
| DE (1) | DE102011085932A1 (en) |
| WO (1) | WO2012168005A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013214811A1 (en) | 2013-01-30 | 2014-07-31 | Sms Siemag Aktiengesellschaft | Method and apparatus for casting a strand |
| AT515244A2 (en) | 2013-12-30 | 2015-07-15 | Inteco Special Melting Technologies Gmbh | Method for producing long ingots of large cross section |
| EP3379217A1 (en) | 2017-03-21 | 2018-09-26 | ABB Schweiz AG | Method and device for determining a temperature distribution in a mould plate for a metal-making process |
| EP3424614A1 (en) * | 2017-07-03 | 2019-01-09 | Primetals Technologies Austria GmbH | Installation of a fibre optic temperature sensor in a mould and mould with multiple fibre optic temperature sensors |
| BE1026740B1 (en) * | 2019-06-21 | 2020-05-28 | Ebds Eng Sprl | Method for balancing a flow of liquid steel in an ingot mold and continuous casting system of liquid steel |
| CN112935213B (en) * | 2019-12-11 | 2022-10-28 | 中冶京诚工程技术有限公司 | Method for measuring liquid level of molten steel in crystallizer and related device |
| CN111822665B (en) * | 2020-07-25 | 2021-12-21 | 莱芜钢铁集团银山型钢有限公司 | Argon blowing control method and argon control device for continuous casting tundish breathable upper nozzle pocket block |
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| CN102076442A (en) * | 2008-06-25 | 2011-05-25 | Sms西马格股份公司 | Mould for casting metal |
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| WO2010066447A1 (en) | 2008-12-11 | 2010-06-17 | Sms Siemag Ag | Device for detecting the flow and method therefor |
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2011
- 2011-11-08 DE DE201110085932 patent/DE102011085932A1/en not_active Withdrawn
-
2012
- 2012-05-02 EP EP12718198.0A patent/EP2718043B1/en not_active Not-in-force
- 2012-05-02 CN CN201280038622.2A patent/CN103702784B/en not_active Expired - Fee Related
- 2012-05-02 WO PCT/EP2012/057972 patent/WO2012168005A1/en active Application Filing
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| GB1173755A (en) * | 1965-12-30 | 1969-12-10 | Concast Ag | A Method and Apparatus for Controlling a Continuous Casting Plant |
| CN1331617A (en) * | 1998-12-23 | 2002-01-16 | Sms德马格股份公司 | Method for detecting and controlling level of liquid metal in ingot mold |
| CN1120323C (en) * | 1999-03-26 | 2003-09-03 | 梁畡锺 | Energy-saving type indoor ceiling lamp having meter and loudspeaker |
| JP3494135B2 (en) * | 2000-08-09 | 2004-02-03 | 住友金属工業株式会社 | Level control method and level control device for continuous casting machine |
| CN102076442A (en) * | 2008-06-25 | 2011-05-25 | Sms西马格股份公司 | Mould for casting metal |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012168005A1 (en) | 2012-12-13 |
| DE102011085932A1 (en) | 2012-12-13 |
| EP2718043A1 (en) | 2014-04-16 |
| CN103702784A (en) | 2014-04-02 |
| EP2718043B1 (en) | 2015-09-16 |
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