EP3464654B1 - Device and method for sensing a conveying rate of a liquid material - Google Patents

Description

The invention relates to a device for detecting a delivery rate with which a liquid material is poured from a pivotable outlet vessel into a metallurgical target vessel, and a corresponding method.

In the field of continuous steelmaking, it is known in the art to continuously load a furnace with a metal load. For this purpose, a method and a device are, for example, made of US 6,004,504 is known, the metal loading used here being in particular metal scrap in the form of solid particles. By means of a delivery rate detector, it is possible to determine the mass and the speed of the metal loading which is fed to a furnace. According to US 6,004,504 However, a furnace can only be loaded with a solid or particulate metal load, but not with liquid materials.

Out DE 10 2005 023 133 A1 A system for measuring and controlling the loading of a furnace with melted material and scrap and a corresponding method are known. According to such a system, an automatic device for the management of the feed with melted material or scrap depending on the energy supplied to the bath and a device for measuring the supplied melted material assigned to the automatic management device are provided, for this purpose also a device for weighing the furnace and its contents and possibly other on the same burdening components is provided. For a continuous control of the furnace weight, two different measuring methods are possible, namely on the one hand a method based on the liquid metal level for indirect control of the furnace weight, and on the other hand a direct method with which the weight of the system can be determined appropriate sensors is determined. The indirect measurement method is based on a geometrical measurement of the liquid metal level inside the furnace, this data being able to be converted into volume data, which then allows knowledge of the specific density of the liquid metal to be used to draw a conclusion about the weight of the liquid metal taken up inside the furnace. The indirect measurement method is only carried out when the furnace is filled with the liquid metal in order to determine the level of the liquid metal within the furnace, as explained. If an erosion effect occurs on the inner lining of the furnace as a result of an interaction with the liquid metal, the inner volume of the furnace can change, as a result of which great inaccuracies disadvantageously arise for the indirect measurement method.

Out EP 2 061 612 B1 a method for pouring melt from a tiltable metallurgical vessel and a corresponding system for performing this method are known. According to this prior art, pouring of melt from a tiltable metallurgical vessel into a receptacle can be carried out completely automatically, because the position of a melt pouring jet, which results from a determined tilting position of the metallurgical vessel, is determined automatically, and subsequently depending the ascertained position of this pouring jet, the receptacle is brought into position in order to receive the melt dumped out of the metallurgical vessel. By tracking or moving the receptacle, which is located below the metallurgical vessel, the fact is taken into account that the pouring stream of the melt also changes depending on the tilting angle of the metallurgical vessel, which changes as the pouring progresses. As a result, a fully automatic pouring of the melt into the receptacle is possible.

Out US 2012/109354 A1 , US 2016/123669 A1 , US 2010/116855 A1 , DE 35 32 763 A1 , US 4 135 915 A. , US 4 191 885 A respectively. US 2009/230159 A1 Generic devices according to the preamble of claim 1 and generic methods according to the preamble of claim 10 are known. The above-described prior art is subject to the disadvantage that, for the targeted charging of a feed, it is usually difficult to determine the weight of system components including a lower vessel for a ladle is required, and that the target vessel is usually arranged directly below the ladle, so that the ladle cannot be spaced from the target vessel.

Accordingly, the invention is based on the task of detecting the delivery rate for a liquid material with which the liquid material is poured into a metallurgical target vessel with simple and robust means and on the basis of this also to set or regulate precisely.

The above object is achieved by a device with the features specified in claim 1 and by a method according to claim 10. Advantageous developments of the invention are defined in the dependent claims.

A device according to the present invention is used to detect a conveying rate with which a liquid material in the form of pig iron is filled from a pivotable outlet vessel into a metallurgical target vessel, and comprises means for determining an amount of liquid material which is filled into the outlet vessel, and means for sensing an amount of liquid material discharged by pivoting the exit vessel toward the destination vessel. An addition channel, which is made of refractory material, is provided between the outlet vessel and the destination vessel. The means for detecting a quantity of liquid material which is omitted by pivoting the exit vessel in the direction of the destination vessel include at least one measuring loop which is integrated into a wall material of the addition channel.

1. (i) Bestimmen einer Menge an flüssigem Material, das in dem Ausgangsgefäß enthalten bzw. eingefüllt ist, und
2. (ii) Erfassen der Menge an flüssigem Material, das durch ein Verschwenken des Ausgangsgefäßes in Richtung des Zielgefäßes ausgelassen wird.

A method according to the present invention serves to detect a conveying rate of a liquid material with which the liquid material is filled from a pivotable outlet vessel into a metallurgical target vessel, and is characterized by the following steps:

1. (i) determining an amount of liquid material contained in the exit vessel and
2. (ii) Detecting the amount of liquid material that is discharged by pivoting the exit vessel towards the destination vessel.

An addition channel made of refractory material is arranged between the exit vessel and the destination vessel, so that when the exit vessel is pivoted in the direction of the destination vessel, the liquid material first emerges from the exit vessel into the addition channel and then passes from the addition channel into the destination vessel. In step (ii), a fill level is determined with which the addition channel is filled with the liquid material when the outlet vessel is tilted in the direction of the destination vessel and the liquid material emerges from the outlet vessel into the addition channel. At least one measuring loop is provided in the material of the addition channel, which adjoins an inner circumferential surface of the addition channel, a fill level of the liquid material within the addition channel being determined by the measuring loop by inducing electrical fields in the measuring loop through an interaction with the pig iron.

The invention is based on the essential finding that the amount of liquid material which is released by pivoting the starting vessel in the direction of the target vessel can be detected by suitable means. In other words, this amount of liquid material is the rate at which the liquid material is poured into the target metallurgical vessel in the form of pig iron. According to the invention, this delivery rate is recorded at least in that a fill level of the pig iron, which flows through the addition channel in the direction of the target vessel, is determined by means of the induced electric fields and a conclusion about the delivery rate of the pig iron is possible from this.

In an advantageous development of the invention, the delivery rate for the liquid material can also be recorded volumetrically, for example by means of scanner devices or the like suitable for this purpose. Knowing a predetermined specific density of the liquid material is then a conversion of the detected Volume of the liquid material in an appropriate weight possible. As an alternative to this, it can also be provided that the amount of liquid material which is discharged from the outlet vessel in the direction of the target vessel is recorded directly gravimetrically, for example by a weighing device or the like, which can be in the form of a weight measuring cell.

The liquid materials, the conveying rate of which is recorded by means of a device or a method according to the present invention, can generally be liquid substances, e.g. around pig iron, slag or the like, which can have a high temperature and possibly a low viscosity.

The liquid material can either be poured directly into the target vessel when the starting vessel is pivoted. Alternatively, it is possible to arrange aids between the starting vessel and the target vessel, e.g. an addition channel, wherein the liquid material is first discharged into this addition channel when the starting vessel is pivoted in the direction of the destination vessel, in order to then be filled into the metallurgical destination vessel through this addition channel. It is possible that either the addition channel opens directly into the metallurgical vessel, or that additional aids, e.g. a conveyor trough or the like are connected, through which a transport of the liquid material into the target vessel is ensured.

In an advantageous development of the invention, the means by which the amount of liquid material in the outlet vessel is determined include a first scanner device. Such a scanner device makes it possible to scan the exit vessel and its geometry, namely both when the exit vessel is still empty and when the liquid material is filled into the exit vessel. Scanning the exit vessel in the empty state is particularly advantageous for determining a possible receiving volume of the exit vessel, because this enables a precise condition of an inner wall of the exit vessel to be determined or determined. This is particularly advantageous if the output vessel is a Casting ladle acts, the inner wall usually has a brick lining, which can be subject to erosive wear due to contact with hot molten metal. In the sense of the present invention, it is expedient if, before processing a new batch of liquid material, in the course of step (i) of the method according to the invention, the output vessel is first scanned in an empty state by the first scanner device, ie if it does not contain any liquid material is. In this way, a conclusion can be drawn about a respectively up-to-date possible receiving volume of the starting vessel.

In an advantageous further development of the invention, at least one weighing device can be provided with which the weight of the exit vessel is determined, namely while the exit vessel is tilted in the direction of the destination vessel in order to fill the liquid material into the destination vessel. Such a weighing device can be integrated in a depositing stand, on which the exit vessel can be positioned, or in a crane, on which the exit vessel can be attached. With such a weighing device, it is thus possible, based on the determined change in weight of the initial vessel, when this is pivoted in the direction of the target vessel and the liquid material escapes in the direction of the target vessel, to draw a conclusion on the conveying rate with which the liquid material in the target metallurgical vessel is filled.

In an advantageous further development of the invention, the means with which the amount of liquid material discharged by pivoting the exit vessel in the direction of the target vessel can have a position measuring device or a position measuring device. This makes it possible to determine a tilting movement with which the output vessel is pivoted in the direction of the target vessel, namely with regard to both a tilting angle and a tilting speed for the output vessel.

The above-mentioned first scanner device can be arranged and designed in such a way that it can be used to determine a fill level with which the liquid material is filled inside the outlet vessel. It is optional it is possible that such a scanner device also detects a change in the filling level within the exit vessel while the exit vessel is pivoted in the direction of the destination vessel and the liquid material emerges from the exit vessel.

In addition and / or alternatively, according to an advantageous development of the invention, a second scanner device can be provided, which is aligned with the addition channel arranged between the exit vessel and the destination vessel. The addition channel is scanned by means of the second scanner device in order to determine a fill level of the liquid material therein, while the outlet vessel is pivoted in the direction of the destination vessel and the liquid material thereby flows into the addition channel. In this context, it should be noted that the geometry of the addition channel and its inclination in the direction of the target vessel are known. On the basis of this, it is possible, with a filling level of the liquid material within the addition channel determined by the at least one measuring loop and / or by the scanner device, to draw a conclusion about the volume or the conveying rate of the liquid material with which the liquid material Material is filled into the target vessel.

In an advantageous development of the invention, a tilting speed for the exit vessel is selected or adjusted in step (ii) in such a way that the delivery rate at which the liquid material emerges from the exit vessel in the direction of the target vessel is essentially constant. This makes it possible for the liquid material to be filled into the metallurgical target vessel at a predetermined delivery rate. By regulating the tilting speed of the outlet vessel, a decrease in the fill level of the liquid material within the outlet vessel, which decrease occurs when the liquid material emerges from the outlet vessel, is suitably compensated for in order to achieve a desired delivery rate.

It should be pointed out that the device according to the present invention can either be provided as original equipment in a furnace, for example for steel production, or can also be retrofitted. Anyway the essential components of the device according to the invention are formed from the means for determining an amount of liquid material which is filled in the outlet vessel and from the means for detecting an amount of liquid material which is discharged by pivoting the outlet vessel in the direction of this destination vessel . In contrast, the starting vessel and the target vessel itself are not necessarily part of the device according to the invention.

Preferred embodiments of the invention are described in detail below with reference to a schematically simplified drawing.

Fig. 1

eine vereinfachte Seitenansicht, teilweise freigeschnitten, eines metallurgischen Ofens und einer verschwenkbaren Gießpfanne, die dem Ofen zugeordnet ist,

Fig. 2-4

jeweils Seitenansichten der Gießpfanne von Fig. 1 in verschiedenen Schwenkpositionen in Bezug auf den metallurgischen Ofen, zur Veranschaulichung einer Ausführungsform der Erfindung,

Fig. 5

stark vereinfachte Querschnittsansichten einer Gießpfanne, wenn darin (a) ein flüssiges Material eingefüllt ist, und (b) wenn die Gießpfanne leer ist,

Fig. 6

eine Seitenansicht einer Gießpfanne, zur Veranschaulichung einer weiteren Ausführungsform der Erfindung,

Fig. 7

eine vereinfachte Querschnittsansicht einer Zugaberinne, die zu dem Ofen von Fig. 1 führt,

Fig. 8

eine vereinfachte Seitenansicht einer Gießpfanne, zur Veranschaulichung einer weiteren Ausführungsform der Erfindung.

Show it:

Fig. 1

a simplified side view, partially cut away, of a metallurgical furnace and a pivotable ladle, which is assigned to the furnace,

Fig. 2-4

side views of the ladle from Fig. 1 in different pivot positions with respect to the metallurgical furnace, to illustrate an embodiment of the invention,

Fig. 5

greatly simplified cross-sectional views of a ladle when (a) a liquid material is filled in, and (b) when the ladle is empty,

Fig. 6

3 shows a side view of a ladle, to illustrate a further embodiment of the invention,

Fig. 7

a simplified cross-sectional view of an addition channel leading to the furnace of Fig. 1 leads,

Fig. 8

a simplified side view of a ladle, to illustrate a further embodiment of the invention.

Fig. 1 shows in a side view, simplified and partially cut away, a part of a furnace, which is used, for example, for steel production, and an associated ladle, which is arranged pivotably in the direction of the furnace. The invention can be used in such an oven, as explained in detail below.

The object of the present invention is based on the fact that a conveying rate is thereby recorded, with which a liquid material is poured from a pivotable outlet vessel into a metallurgical target vessel. To explain the invention with reference to Fig. 1 a pivoting exit vessel always as a ladle, and a metallurgical destination vessel always as Furnace referred to, without being limited to such components or elements.

The Fig. 2-4 illustrate a first embodiment of a device 1 according to the invention, and show a ladle 4 of Fig. 1 in different operating positions in relation to an oven 6, to which the ladle 4 is assigned. The ladle 4 can be pivoted in the direction of the furnace 6. In detail, the ladle 4 is in a starting position ( Fig. 2 ), in an intermediate position ( Fig. 3 ) and in an end position ( Fig. 4 ) shown. Starting from the starting position according to Fig. 2 serves to pivot the ladle 4 in the direction of the furnace 6 for the purpose that a liquid material, for example liquid pig iron, is discharged from the ladle 4 in the direction of the furnace 6 and is preferably filled into the furnace 6 at a predetermined delivery rate.

Adjacent to the oven 6 is a ladle 7 which has a pair of holding arms 8 which can be pivoted about a horizontal axis A. Sack grooves 8s ( Fig. 2 ) educated. On opposite sides of the ladle there are guide pins 4z ( Fig. 2 ) appropriate. It is thus possible to hang the ladle 4 between the holding arms 8 by hanging the guide pins 4z in the blind grooves 8s of the two holding arms 8.

The ladle placement stand 7 has at least one hydraulic cylinder 10 which is articulated on one of the two holding arms 8. A separate hydraulic cylinder 10 is expediently assigned to each of the two holding arms 8, which cannot be seen in the side views of the drawing. By actuating the hydraulic cylinder (s) 10, it is possible to pivot the holding arms 8. At the same time, the ladle 4 is pivoted about the axis A into different operating positions because the position of the ladle 4 after it is suspended between the holding arms 8, is fixed relative to the holding arms 8 and does not change.

An addition channel 12 is arranged between the ladle placing stand 7 and the furnace 6, the course of which is inclined downwards in the direction of the furnace 6. Following the addition channel 12, a conveyor channel 13 is provided which leads into the oven 6. The addition channel 12 is by means of an articulated lever 14 ( Fig. 3 ) articulated to a frame construction of the ladle placing stand 7, the inclination of the addition channel 12 in the direction of the furnace 6 being variable by adjusting the articulated lever 14, preferably by means of a motor.

If liquid material is poured into the ladle 4, and then the ladle 4 starting from its starting position ( Fig. 2 ) is pivoted about the axis A by actuation of the hydraulic cylinder 10 and is thus tilted in the direction of the furnace 6, for example into the intermediate position according to FIG Fig. 3 , then the liquid material emerges from an opening 5 of the ladle 4 into the addition channel 12. In the Fig. 3 is a fill level, with which the addition channel 12 is filled by the liquid material 2, symbolized by a dashed line 16. The liquid material 2 flows from the addition channel 12 into the feed channel 13 connected to it, and then enters the furnace 6. The fill level 16, which results for the liquid material 2 within the addition channel 12, is determined by the tilting angle of the ladle 4, and possibly adjusted by the angle of inclination of the addition channel 12.

In Fig. 4 the ladle 4 is pivoted into its end position, namely by a corresponding actuation of the hydraulic cylinder 10 and a resulting movement of the holding arms 8. In this end position it is ensured that the liquid material 2 essentially flows out of the ladle 2 and into the furnace as intended 6 is filled. In the Fig. 4 is, in the same way as for Fig. 3 , a fill level 16 with which the towing channel 12 is filled by the liquid material 2, symbolized by a dashed line. In addition, it should be pointed out that the ladle 4 in the representation of Fig. 1 is also pivoted into its end position.

The device 1 comprises means 18 for determining an amount of liquid material which is filled in the outlet vessel in the form of the ladle 4.

These means 18 include, for example, a first scanner device 20 ( Fig. 2 ), with which the ladle 4 can be scanned when it is filled with the liquid material 2. In addition, it is possible to scan the ladle 4 and its geometry using the first scanner device 20 in order to thereby determine an exact value for the inner volume of the ladle.

Fig. 5 shows a greatly simplified cross-sectional view of the ladle 4. In the representation (a) of Fig. 5 the ladle 4 is scanned by means of the first scanner device 20 when liquid material 2 is poured into the ladle 4. In the representation (b) of Fig. 5 the ladle 4 is scanned in an empty state by means of the first scanner device 20. By scanning the ladle 4 when it is empty and therefore no liquid material is poured into it, it is possible to determine an exact inner volume for the ladle 4, also taking into account possible signs of wear from its lining on the inner peripheral surface. For the present invention, it is expedient to always scan the ladle 4 in an empty state before liquid material 2, for example as the next batch of pig iron, is refilled therein.

Knowing an exact inner volume of the ladle 4, which, as explained, is determined by scanning the empty ladle 4, it is then possible, by scanning the fill level at which the ladle 4 is filled with liquid material 2, to draw a conclusion about the ladle 4 filled amount of liquid material. This amount can be calculated as a volume, based on a predetermined specific density of the liquid Material so that the weight of the liquid material within the ladle 4 can be determined.

The device 1 further comprises means 24 for detecting a quantity of liquid material which is discharged when the ladle 4 is pivoted in the direction of the furnace 6.

The means 24 can comprise a sensor 26 for measuring the distance, which is provided on the hydraulic cylinder 10. By means of this sensor 26 it is possible to determine an exact position of the holding arms 8, and thus also of the ladle 4 suspended therein. Based on this, it is possible to measure a tilting movement of the ladle 4, namely both with regard to a tilting angle and a tilting speed relative to the furnace 6.

The invention now works as follows:
Before processing a batch of liquid material 2, for example in the form of pig iron, the ladle 4 is first scanned in the empty state by means of the scanner device 20 in order to exactly determine the inner volume of the ladle 4. Then the liquid material 2 is poured into the ladle 4, the filling level for the liquid material 2 inside the ladle then being determined by means of the scanner device 20. Then the ladle 4, based on its starting position Fig. 2 , tilted about the axis A in the direction of the furnace 6, and thereby reaches an intermediate position ( Fig. 3 ) in their final position ( Fig. 4 ). As already explained, the liquid material 2 flows from the opening 5 of the ladle 4 into the addition channel 12 and then enters the furnace 6. The speed at which the ladle 4 is tilted about the axis A in the direction of the furnace 6 , taking into account the filling level or the filling weight of the liquid material which is accommodated in the ladle 4, calculated in advance, and appropriately set by driving the hydraulic cylinder 10.

Further embodiments of the invention are described below with reference to the illustration according to Fig. 6 explained.

The means 24 can also include a first weighing device 22, which can be provided as an alternative or in addition to the scanner device 20. The first weighing device 22 is integrated in the ladle placing stand 7 and enables the weight of the ladle 4 suspended in the holding arms 8 to be determined, namely both in its starting position and during pivoting about the axis A. Taking into account the change in weight of the ladle 4, which results when they are pivoted about the axis A as a result of the liquid material 2 escaping, the amount of liquid material which is filled into the furnace 6, ie the funding rate can be determined mathematically.

By means of the first weighing device 22, it is also possible to determine the weight of the liquid material 2 which is poured into the ladle 4 when it changes in its starting position Fig. 2 located. This is done in a simple manner by measuring the weight of the ladle 4 in the empty state and then in the filled state together with the liquid material 2. In this respect, the first weighing device 22 also forms part of the means 18.

According to a further embodiment of the invention, the means 24 can comprise a second scanner device 28, with which the fill level 16 for the liquid material 2 within the addition channel 12 is determined. Fig. 7 shows a simplified cross-sectional view of the addition channel 12, and clarifies that the second scanner device 28 is positioned, for example, above the addition channel 12 in order to scan the addition channel 12 and thereby fill level 16 for the liquid Capture material 2. In this context, reference may be made to the addition channel 12 that its geometry (in a plane orthogonal to the direction of flow of the liquid material) and angle of inclination in the direction of the furnace 6 are known.

According to a further embodiment of the invention, it can be provided that the means 24, in addition or as an alternative to the second scanner device 28, comprise a second weighing device 30, which in the illustration of FIG Fig. 7 is only shown symbolically very simplified. The weight in the addition channel 12 can be determined continuously by means of the second weighing device 30 if the liquid material 2 emerges from the ladle 4 into the addition channel 12 while the ladle 4 is pivoting about the axis A. On the basis of the weight measurement of the addition channel 12 when the liquid material 2 flows through the addition channel 2, it is possible to draw a conclusion about the delivery rate in comparison to a previously determined weight of the addition channel 12 if it is empty and contains no liquid material , with which the liquid material 2 is filled through the addition channel 12 into the furnace 6.

According to a further embodiment of the invention it can be provided that the means 24, in addition or alternatively to the second scanner device 28 or to the second weighing device 30, comprise measuring loops 32 which are made into the refractory (FF) material from which the addition channel 12 is made , are embedded (cf. Fig. 7 ). If liquid material in the form of pig iron flows through the addition channel 12, electrical fields are induced in the measuring loops 32, by means of which the fill level 16 which is established for the pig iron within the addition channel 12 can be determined.

On the basis of the fill level 16 for the liquid material 2 within the addition channel 12, which fill level 16 is detected by the second scanner device 28 and / or by the measuring loops 32, a conclusion can then be drawn about the Amount or delivery rate possible with which the liquid material 2 flows through the addition channel 12 and is then filled into the furnace 6.

According to a further embodiment of the invention it can be provided that the ladle 4 hangs on a crane 34. This is simplified in a side view of Fig. 8 shown that part of a furnace 6 according Fig. 1 shows. With the help of an auxiliary stroke that is adjustable for the crane 34, the ladle 4 can be tilted in a controlled manner or pivoted in the direction of the furnace 6, in the same way as in FIG Fig. 3 and Fig. 4 shown and explained, so that as a result the liquid material 2 is poured from the ladle 4 through the addition channel 12 into the furnace 6.

A third weighing device 36 can be integrated into the crane 34, by means of which a change in weight is determined for the ladle 4 when it is pivoted in the direction of the furnace 6 and liquid material 2 emerges from the ladle 4. The measured change in weight for the ladle 4 is, in the same way as for the measurement with the first weighing device 22, a measure of the delivery rate in the form of a mass flow with which the liquid material 2 is filled into the furnace 6.

With regard to the means 24, it should be pointed out that the scanner device 28, the weighing devices 22, 30, 36 and the measuring loops 32 explained above can be used alternatively or cumulatively in order to determine the conveying rate at which the liquid material 2 is filled into the oven 6. When these elements are used cumulatively, improved accuracy with regard to detection and adjustment of the conveying rate for the liquid material 2 is ensured.

With regard to the drawing, it should be pointed out that the scanner devices 20, 28 shown therein are greatly simplified and are only shown symbolically.

Finally, for all of the above embodiments of the invention, it may be pointed out that the device 1 also comprises a controller 3, which, for example in Fig. 2 is only symbolically indicated for the purpose of simplification. All of the above-mentioned scanner devices, weighing devices and distance measuring sockets or sensors are connected to the controller 3 via data lines (not shown) so that their signals can be processed in the controller 3. On the basis of this, a suitable control or regulation of the hydraulic cylinder 10 for setting a desired tilting speed for the ladle 4 is then possible because the hydraulic cylinder 10 is also connected to the controller 3. As a result, a predetermined delivery rate can be achieved with which the liquid material 2 is filled into the furnace 6.

Reference list

1

contraption

2nd

Liquid material

3rd

control

4th

Ladle / exit vessel

4z

Guide pin

5

Opening (the ladle)

6

Furnace / metallurgical target

7

Pan deposit stand

8s

Sack grooves

8th

Holding arms

13

Conveyor trough

10th

Hydraulic cylinder

12th

Encore channel

14

Articulated lever

16

Level

18th

Means for determining an amount of liquid material

20th

First scanner facility

22

First weighing device

24th

Means for detecting the amount of liquid material

26

Sensor, for odometer reading

28

Second scanner device

30th

Second weighing device

32

Measuring loop

34

crane

36

Third weighing device

A

(Horizontal) axis

FF

Refractory material (for the addition channel 12)

Claims (18)

1. Device (1) for detecting a conveying rate at which a liquid material in the form of pig iron (2) is filled from a pivotable starting vessel (4) into a metallurgical target vessel (6), comprising
   means (18) for determining an amount of liquid material (2) which is filled into the starting vessel (4) and
   means (24) for detecting an amount of liquid material (2) which is let out by pivotation of the starting vessel (4) in the direction of the target vessel (6),
   characterised in that
   provided between the starting vessel (4) and the target vessel (6) is a feed channel (12) made of refractory material (FF) and
   the means (24) for detecting an amount of liquid material (2) which is let out by pivotation of the starting vessel (4) in the direction of the target vessel (6) comprise at least one measurement loop (32) for determination of the filling height by induced electrical fields, the loop being integrated in a wall material (FF) of the feed channel (12).
2. Device (1) according to claim 1, characterised in that the means (18) by which the amount of liquid material (2) in the starting vessel (4) comprise a first scanner device (20), wherein the starting vessel (4) and the geometry thereof can be scanned by the first scanner device (20) not only when the starting vessel (4) is empty, but also when the liquid material (2) is filled thereinto.
3. Device (1) according to claim 1 or 2, characterised in that the means (18) and/or the means (24) comprise at least one weighing device (22, 36) by which the weight of the starting vessel (4) is determinable whilst the starting vessel (4) is tipped in the direction of the target vessel (6) so as to fill the liquid material (2) into the target vessel (6).
4. Device (1) according to claim 3, characterised in that the weighing device (22) is integrated in a deposit stand (7) on which the starting vessel (4) is positionable.
5. Device (1) according to claim 3 or 4, characterised in that the weighing device (36) is integrated in a crane (34) to which the starting vessel (4) can be attached.
6. Device (1) according to any one of claims 1 to 5, characterised in that the means (24) which the amount of liquid material (2) let out by pivotation of the starting vessel (4) in direction of the target vessel (6) is detected comprise a travel measuring detection means (26) by which a tipping movement, by which the starting vessel (4) is pivoted in the direction of the target vessel (6), is determinable.
7. Device (1) according to claim 6, characterised in that not only a tipping angle, but also a tipping speed, with which or at which the starting vessel (4) is pivoted in the direction of the target vessel (6), are determinable by the travel measuring detection means (26).
8. Device (1) according to any one of claims 1 to 6, characterised in that the means (24) for detection of a quantity of liquid material (2), which is let out by pivotation of the starting vessel (4) in the direction of the target vessel (6), comprises a second scanner device (28) by which a feed channel (12) arranged between the starting vessel (4) and the target vessel (6) is scannable so as to thereby determine a filling height (16) to which the feed channel (12) is filled by the liquid material (2).
9. Device (1) according to any one of claims 1 to 7, characterised in that the means (24) for detecting a quantity of liquid material (2), which is let out by pivotation of the starting vessel (4) in the direction of the target vessel (6), comprise a second weighing device (30) by which the weight of a feed channel (12) arranged between the starting vessel (4) and the target vessel (6) can be continuously measured.
10. Method for detecting a conveying rate of a liquid material (2) in the form of pig iron, with which the liquid material (2) is filled from a pivotable starting vessel (4) into a metallurgical target vessel (6), characterised by the steps:

    (i) determining an amount of liquid material (2) present in the starting vessel (4), and

    (ii) detecting the quantity of liquid material (2) let out by pivotation of the starting vessel (4) in the direction of the target vessel (6),

    characterised in that,
    a feel channel (12) is arranged between the starting vessel (4) and the target vessel (6) so that when the starting vessel (4) is pivoted in the direction of the target vessel (6) the liquid material (2) initially issues from the starting vessel (4) into the feed channel (12) and subsequently passes from the feed channel (12) into the target vessel (6), wherein the feed channel (12) consists of refractory material,
    in step (ii) a filling height is determined to which the feed channel (12) is filled by the liquid material (2) when the starting vessel (4) is tipped in the direction of the target vessel (6) and in that case the liquid material (2) issues from the starting vessel (4) into the feed channel (12), and
    at least one measuring loop (32) is provided in the refractory material (FF) of the feed channel (12), which adjoins an inner circumferential surface of the feed channel (12), wherein a filling height (16) of the liquid material (2) within the feed channel (12) is determined by the measuring loop (32) in that electrical fields are induced in the measuring loop (32) by interaction with the pig iron.
11. Method according to claim 10, characterised in that in the step (i) the geometry of the starting vessel (4) when no liquid material (2) is present therein and subsequently a filling height of the liquid material (2) when this is filled into the starting vessel (4) are detected and in that in step (ii) a tipping speed of the starting vessel (4) at which the starting vessel (4) is pivoted in the direction of the target vessel (6) is detected, wherein the liquid material (2) issues from the starting vessel (4) in the direction of the target vessel (6).
12. Method according to claim 10 or 11, characterised in that the feed channel (12) is scanned so as to determine the filling height (16) of the liquid material (2) within the feed channel (12).
13. Method according to any one of claims 10 to 12, characterised in that in step (ii) the weight of the feed channel (12) is continuously measured whilst the starting vessel (4) is tipped in the direction of the target vessel (6) and in that case the liquid material (2) issues from the starting vessel (4) into the feed channel (12).
14. Method according to any one of claims 10 to 13, characterised in that in step (ii) the weight of the starting vessel (4) is measured continuously.
15. Method according to claim 14, characterised in that the starting vessel (4) whilst the liquid material (2) is filled into the metallurgical target vessel (6) is positioned in a deposit stand (7) equipped with at least one weighing device (22).
16. Method according to any one of claims 10 to 15, characterised in that the tipping speed for the starting vessel (4) in step (ii) is so selected that the conveying rate at which the liquid material (2) issues from the starting vessel (4) in the direction of the target vessel (6) is substantially constant.
17. Method according to any one of claims 10 to 16, which is carried out with a device (1) according to any one of claims 1 to 9.
18. Method for setting a predetermined conveying rate at which a liquid material (2) is filled from a starting vessel (4) into a metallurgical target vessel (6), wherein a method according to any one of claims 10 to 17 is carried out in order to detect the conveying rate of the liquid material (2) at which it is filled into the target vessel (6), wherein the tipping speed for the starting vessel (4) in step (ii) is adjusted to be regulated in such a way that a predetermined conveying rate for the liquid material (2), at which it is filled into the target vessel (6), is set.

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