Metallurgical system and method for treating a metal product

Abstract

The invention relates to a metallurgical system (1) and to a method for treating a metal product (50, 51, 52), the system (1) having: at least one treatment means (10, 20, 30) for treating the metal product (50, 51, 52); and a system controller (100) having a process section (120) for controlling and / or regulating the system (1), a data section (110) designed to detect production data of the metal product (50, 51, 52) and to provide same to the process section (120), and a specification section (130) designed to provide the process section (120) with specifications at least in the form of limits without the need for correction and limits with the need for correction, the process section (120) having a correction section (123) designed to compare the production data from the data section (110) with the specifications from the specification section (130) and, on the basis of said comparison, to make corrections in the controlling and / or regulating of the system (1), the correction section (123) being configured to carry out no correction in the event of small deviations where the production data is within the limits without the need for correction, to carry out correction calculations leading to automatic correction measures in the event of permissible deviations where the production data is outside of the limits without the need for correction but within the limits with automatic need for correction, and to initiate special measures in the event of impermissible deviations where the production data is outside the limits with automatic need for correction.

Description

[0001] Metallurgical plant and process for the treatment of a metal product

[0002] Technical field

[0003] The invention relates to a metallurgical plant for the treatment of a metal product and to a method for the treatment of a metal product in a metallurgical plant.

[0004] Background of the invention

[0005] The current operating procedures of many metallurgical plants, especially forming plants such as rolling mills, comprise a mixture of manual and automatic sequences, which are actively monitored and initiated as needed by one or more operators. Manual interventions relate, for example, to the speed and / or sequence of process sequences.

[0006] Such partially manual solutions can negatively impact production efficiency and quality. Manual interventions are subject to a degree of subjective, experience-based judgment; they are not "predictable," which hinders the optimization of the sequence and execution of the relevant sub-steps. Production interruptions and plant downtime, such as coil changeover times, increase. Manual interventions tend to slow down the production process.

[0007] Description of the invention

[0008] One object of the present invention is to provide an improved metallurgical plant for the treatment of a metal product and an improved method for the treatment of a metal product in a

[0009] Page 1 to provide metallurgical plants, in particular to increase the level of automation.

[0010] The problem is solved by a system with the features of claim 1 and a method with the features of the dependent method claim. Advantageous further developments follow from the dependent claims, the following description of the invention, and the description of preferred embodiments.

[0011] The metallurgical plant is used to process a metal product, which can be implemented, for example, as a rolling mill, particularly a cold rolling mill. The plant treats or processes a metal product, especially in the form of a slab, a strip of metal, and / or coils.

[0012] The plant comprises at least one treatment unit for treating the metal product. The treatment unit can be implemented as a rolling mill with one or more rolling stands. However, the treatment particularly preferably includes coil changing in a reeling unit and / or unwinding the metal strip from a coil in an unwinding reeling unit and / or winding the metal strip into a coil in a winding reeling unit.

[0013] The system comprises a plant control unit with a process section for controlling and / or regulating the plant or the treatment agent, a data section that is set up to record production data of the metal product and provide it to the process section, and a specification section that is set up to provide the process section with specifications at least in the form of limits without correction requirements and limits with correction requirements.

[0014] The plant control system is connected to the components of the plant that are to be controlled, regulated, and / or read via signal technology. Communication between the plant control system and the components to be controlled or read is established via a signal connection.

[0015] The communication between the regulating and / or reading system components can be wired or wireless, digital or analog. The system control can receive and / or send signals, including control signals, data, and the like. Both unidirectional and bidirectional signal transmission fall under the term "communication" in this context. The system control does not necessarily have to be implemented by a central computer or electronic control system; it can also include decentralized and / or multi-level systems, control networks, cloud systems, and the like. The control system can also be an integral part of a higher-level system control or communicate with one. Furthermore, the system control can communicate with lower-level system control systems, i.e., control systems assigned to the respective equipment.

[0016] The term "plant control" is therefore not limited to a single electronic control unit, but is broadly defined and can encompass, in particular, various automation levels LO, L1, L2, and L3 of the plant, which can communicate with each other and exchange data. The automation levels referenced here include, for example: field level LO, encompassing, in particular, sensors, actuators, and generally all plant components that can be read and / or controlled;

[0017] Control systems / controls / process control technology L1; Technological process models L2; ​​Production planning system L3.

[0018] The process section of the plant control system has a correction section which is set up to compare the production data from the data section with the specifications from the specification section and, depending on this, to make corrections to the control and / or regulation of the plant, in particular to the treatment agent.

[0019] Page 3 According to the invention, the correction section is designed to perform no corrections in a case of minor deviations where the production data are within the limits without correction required, to perform correction calculations that lead to automatic corrective measures in a case of permissible deviations where the production data are outside the limits without correction required but within the limits with automatic correction required, and to initiate special measures, which may include the operating personnel, in a case of impermissible deviations where the production data are outside the limits with automatic correction required.

[0020] The automation of processes described above enables reliable, reproducible quality for the product being manufactured, while simultaneously optimizing plant utilization. Operating modes and procedures can be optimized, for example, with regard to energy efficiency, maximum productivity, and the like, which can be achieved particularly by eliminating the human factor. Output can be increased through shorter process times.

[0021] Operator intervention can be largely eliminated, effectively transforming the operator into a "monitor," i.e., a process inspector with emergency intervention capabilities. On-site presence is not strictly necessary, enabling remote control of the system. Operator errors can be avoided, and the workload of the operating personnel is reduced. Production targets can be met more reliably. Occupational safety is improved.

[0022] The automation described enables the early implementation of technological controls to improve product quality, especially within the framework of automation level L1.

[0023] Page 4 The automation of process sequences presented here also enables the reproducibility of process conditions and product quality, especially for small batch sizes. The interaction between machines, encompassing mechanics, hydraulics, electrical control circuits, process control / regulation, and the like, can be harmonized and designed to be reproducible.

[0024] Preferably, the presetting section is set up to provide the process section with a specification of work steps, including, for example, their sequence, which allows the driving and operating modes of the plant to be further optimized.

[0025] Preferably, the process section includes a preset section configured to calculate and set default values ​​for the at least one treatment agent, taking into account the production data from the data section and the specifications from the specification section. These default values ​​include, for example, the positions, speeds, and forces of the respective subcomponents of the system, as well as the sequence or, if applicable, parallel execution of work steps. The default values ​​are then set at the field level LO on the system, and processing or production can begin.

[0026] Preferably, the process section comprises one or more process models, with the correction section being configured such that the process models are incorporated into the correction calculation of the correction section. The process models can also be incorporated into the calculation of the setpoints in the preset section. Considering process models in the correction calculation and / or the calculation of setpoints at the beginning and / or during processing enables further optimization of the plant's operating modes, particularly with regard to the automation of process sequences.

[0027] Page 5 Preferably, the process section is configured to adapt the process models, taking into account the correction calculations of the correction section and / or the calculation of the setpoints in the preset section. The automation of the process flows can be further improved by feeding correction and / or preset calculations back into the process models, thus enabling dynamic adaptation of the process models.

[0028] Preferably, at least one sensor device is provided, configured to detect actual data as at least part of the production data. The production data may alternatively or additionally include target data.

[0029] Preferably, at least one processing device is a reeling unit with a coil changing unit for automatically changing a coil. Manual intervention during coil changing can be largely eliminated by means of the described automation of process sequences. In particular, an unwinding reeling unit is suitable as a processing device.

[0030] In this case, the sensor device is preferably configured to measure the condition of the coil. This can involve mechanical and / or metallurgical and / or geometric properties, in particular the telescoping of the coil's inner and / or outer windings. This is data that is not normally available to the production system, as usually only the nominal inner and outer diameters are transmitted. When positioning the coil on a reel head, the telescoping of the inner windings, or even the existence of a collapsed inner winding, is a disruptive factor that must be taken into account. The sensor device can, for example, include a camera and corresponding evaluation electronics.

[0031] Page 6 Alternatively or additionally, the position / geometry of the strip start, the center position of a coil, the waviness of the metal strip, the strip tracking, the surface quality and / or surface roughness of the metal strip, microstructure properties, or other production data can be measured and processed in the process section of the plant control system using a suitable sensor device. The monitoring and measurement procedures can be implemented individually or in various combinations. Some measurements, such as the position of the coil on a spool, only need to be performed once, while other measurements, such as measuring the strip tracking or waviness, can be repeated several times during threading to ensure continuous monitoring of the relevant parameters.

[0032] With the help of the automation of the coil change carried out in this way, coil change times of less than 150 seconds can be achieved, preferably less than 125 seconds, most preferably less than 105 seconds.

[0033] The process flow diagram for automating process flows can also be applied to other processing equipment, for example a rolling mill in a cold or hot rolling mill.

[0034] The above-mentioned problem is further solved by a method for treating a metal product in a metallurgical plant, wherein the method comprises: treating the metal product by means of a treatment agent; and controlling and / or regulating the plant or the treatment agent to carry out the treatment of the metal product by means of a process section of a plant control system, further comprising a data section that records production data of the metal product and provides it to the process section, and a specification section that provides the process section with specifications at least in the form of limits without correction requirements and limits with correction requirements.

[0035] Page 7 provides, wherein the process section includes a correction section that compares the production data from the data section with the specifications from the specification section and, depending on this, makes corrections to the control and / or regulation of the plant, in particular to the treatment agent; wherein the correction section does not perform any correction in the case of minor deviations where the production data are within the limits without the need for correction, performs correction calculations in the case of permissible deviations where the production data are outside the limits without the need for correction but within the limits with automatic correction requirements, and initiates special measures in the case of impermissible deviations where the production data are outside the limits with automatic correction requirements.

[0036] The features, technical effects, advantages and embodiments described in relation to the plant apply analogously to the process.

[0037] For the reasons mentioned above, the process section preferably includes a preset section which calculates and sets set values ​​for at least one treatment agent, taking into account the production data from the data section and the specifications from the specification section.

[0038] Preferably, for the reasons mentioned above, the process section comprises one or more process models that are included in the correction calculation of the correction section.

[0039] Preferably, for the reasons mentioned above, the preset section calculates the set values ​​for at least one treatment agent, taking the process models into account.

[0040] Page 8 Preferably, for the reasons mentioned above, the process section performs an adaptation of the process models taking into account the correction calculations of the correction section and / or taking into account the calculation of the set values ​​in the preset section.

[0041] Preferably, for the reasons mentioned above, at least one treatment device is a reeling device with a coil changing device for automatically changing a coil, wherein the production data particularly include a metrologically recorded condition of the coil, for example telescoping of the inner and / or outer windings of the coil.

[0042] Further advantages and features of the present invention will become apparent from the following description of preferred embodiments. The features described therein can be implemented individually or in combination with one or more of the features set out above, provided that the features do not contradict each other. The following description of preferred embodiments is given with reference to the accompanying drawings.

[0043] Brief description of the characters

[0044] Preferred further embodiments of the invention are explained in more detail by the following description of the figures. These show:

[0045] Figure 1 schematically shows a rolling mill with coiling equipment as an exemplary metallurgical plant; and

[0046] Figure 2 shows a flowchart for a multi-stage, automated operating mode of a metallurgical plant.

[0047] Detailed description of preferred embodiments

[0048] Page 9 The following section describes preferred embodiments with reference to the figures. Identical, similar, or equivalent elements in the figures are designated with identical reference numerals, and repeated descriptions of these elements are sometimes omitted to avoid redundancy.

[0049] Figure 1 schematically shows a metallurgical plant 1, which is implemented here as an example rolling mill, in particular a cold rolling mill. The plant 1 processes a metal strip 50 and coils 51, 52 as metal products.

[0050] The system 1 comprises at least one rolling mill 10 with at least one rolling stand 11, which has two work rolls 11a, 11b forming a roll gap, as well as two reeling devices, namely an unwinding reeling device 20 and a winding reeling device 30. The rolling mill 10, the unwinding reeling device 20 and the winding reeling device 30 each serve as an exemplary treatment device.

[0051] Rolling mill 10 is set up to roll the metal strip 50. For this purpose, the metal strip 50 is unwound from a coil 51 in the unwinding reel 20, transported along a conveying direction F through rolling mill 10, and subsequently wound into a coil 52 in the winding reel 30 after being formed. The incoming thickness of the metal strip 50 at rolling mill 10 is greater than the outgoing thickness, and the incoming speed is lower than the outgoing speed to maintain mass flow during a pass.

[0052] The reeling devices 20, 30 each have a reeling mandrel 21, 31 for unwinding or winding the metal strip 50.

[0053] Page 10 Each of the reel units 20, 30 is assigned a coil changing unit 25, 35, which are set up to perform an automatic coil change.

[0054] Plant 1 also includes a plant control unit 100, which communicates with the various components of Plant 1, actuators, sensors and the like, and is set up to control and / or regulate the process control in Plant 1.

[0055] The plant control unit 100 is connected via signal technology to the components of plant 1 that are to be controlled, regulated, and / or read out. Communication between the plant control unit 100 and the plant components to be controlled, regulated, and / or read out can be wired or wireless, digital or analog. The plant control unit 100 can accordingly receive and / or send signals, including control signals, data, and the like, whereby both unidirectional and bidirectional signal transmission fall under the term "communication" in this context. The plant control unit 100 does not necessarily have to be implemented by a central computer or electronic control system; rather, it includes decentralized and / or multi-stage systems, control networks, cloud systems, and the like. The control unit can also be an integral part of a higher-level plant control system or communicate with one.The plant control unit 100 can also communicate with plant control units at lower levels.

[0056] Figure 2 shows a flowchart, executed by the plant control system 100, for the automated operation of the metallurgical plant 1, in which different automation levels L0, L1, L2, and L3 of the plant 1 communicate with each other and exchange data. The exchanged data can be verified by measurements and monitoring before being further processed in the plant 1.

[0057] Page 11 The automation levels referenced herein are: Field level LO, encompassing, for example, sensors, actuators, and generally components of plant 1 that can be read and / or controlled; Control systems / controllers / process control technology L1; Technological process models L2; ​​Production planning system L3.

[0058] The plant control unit 100 has a data section 110 which, within the framework of the production planning system L3, provides production data, including actual data, target data, etc. of the product to be manufactured, in the case of the coil changing device(s) 25, 35, for example, actual coil data and target coil data, and transmits this data to a process section 120 of the plant control unit 100.

[0059] The plant control unit 100 also has a specification section 130, which is configured to transmit various production specifications to process section 120. This can include specifications for work steps assigned to the product being manufactured. The specific work steps and their sequence can vary depending on the product.

[0060] Specification section 130 provides various limits or thresholds, including at least a) limits without correction required, Delta <= Limitl, see Figure 2; and b) limits with automatic correction required, Delta > Limitl and <= Limit2, see Figure 2. These are limit values ​​that specify permissible deviations from the production data from automation level L3, and thus in particular the actual data and / or target data from the production data. The permissible deviations can be categorized or evaluated with regard to the degree of necessary corrective action. In particular, a distinction can be made between deviations without necessary correction and those with necessary correction.

[0061] Page 12 Process section 120 comprises a preset section 121 which, taking into account the aforementioned information (in particular production data from L3, specifications of the work steps and limit values) and including one or more process models 122 from automation level L2, calculates setpoints for plant 1. These setpoints include, for example, positions such as the positions of actuating cylinders for adjusting the roll gap, speeds such as strip speed and / or roll speeds, forces such as rolling and / or bending forces, strip tension, input and target variables such as the width, thickness and / or flatness of the strip, the respective subcomponents of plant 1, as well as the sequence or, if applicable, parallel execution of work steps. The setpoints are then applied to the plant at field level L0.

[0062] 1 is set, and processing or production can begin.

[0063] With the start of processing / production, a check of the system data for the product is also initiated to ensure that any deviations from the production data do not lead to problems such as delays, downtime, or damage to system 1. This check takes place in correction section 123 of process section 120. For this purpose, system 1 is preferably equipped with suitable measuring sensors and associated evaluation electronics, as described below using exemplary embodiments.

[0064] The measured data are compared with the limit values ​​in correction section 123 as part of the verification process, and appropriate measures are initiated if there are deviations. This can involve, as shown in the figure...

[0065] Figure 2 shows three categories of possible deviations: a) In the case of small deviations, i.e., the production data are within the limits without the need for correction, no correction is required, Delta < Limit, see Figure 2; b) In the case of deviations that do not exceed a certain permissible limit, i.e., the production data are outside the limits without

[0066] Page 13. If correction is required but within the limits with automatic correction requirements, correction calculations are performed that lead to automatic corrective actions, Delta > Limit 1 and <= Limit 2, see Figure 2. The corrective actions are determined by control systems and / or controllers of automation level L1, possibly including one or more model calculations, and transmitted to Plant 1 as a correction of the setting; c) In the case of deviations that exceed the permissible limit, i.e., the production data are outside the limits with automatic correction requirements, special measures are initiated, which may involve the operating personnel, Delta > Limit 2, see Figure 2. It is checked whether manual intervention can resolve the problem, or whether production must be stopped, or whether a "repurposing" of the product is possible or necessary, and so on. The decision is preferably made at Level 3.Manual intervention by an operator should be the last resort.

[0067] In cases a) and b), production continues without human intervention. For reproducibility, the automatic correction in case b) is particularly important. Further advantages for utilizing maximum speeds arise in cases a) and b). Only in case c) might human intervention in the production process be necessary if Level 3 is unable to perform the repurposing.

[0068] The data in correction section 123 is checked cyclically within a processing part, but also sequentially when several sub-steps are combined into an overall process, until the processing of the product on system 1 is completed.

[0069] Within the cyclical review, in addition to production data such as geometric data, metallurgical, mechanical data and the like, other parameters, in particular plant parameters, can also be considered.

[0070] Page 14, for example, records drive torques, actuation forces, etc., which also have an influence on the processing of the product.

[0071] The measuring sensors with corresponding evaluation electronics can include one or more of the following: position measurement with regard to absolute dimensions and / or relative position after various handling steps; position measurement within plant 1 during production; property measurement with regard to metallurgical properties (e.g., alloy, microstructure); measurement of target properties of the product (e.g., flatness, thickness, temperature of the strip); measurement of plant parameters (e.g., strip tension, starting force, rolling torque, temperatures, flow rates, heating power, speed).

[0072] Measurement methods or technologies for measuring sensors can be based on laser, ultrasound, probe, pyrometer, X-ray, camera, pressure sensor, strain gauge, limit switch, radar, lidar, etc.

[0073] It is also possible to adapt the process models 122 of automation level L2, taking into account the correction calculations for setting, see dashed line between correction calculation and process models 122 in Figure 2.

[0074] One or more instances of the process flow diagram according to Figure 2 can be implemented by self-learning systems, for example to select optimized processes based on the evaluation of successfully improved processes, but also based on error analyses of unsuccessful processes to avoid errors.

[0075] The flowchart described above for automating process sequences of plant 1 is illustrated by way of example using the coil changing unit 25 and the unwinding reel unit 20. To avoid manual interventions

[0076] To automate the positioning of a coil 51 on the unwinding reel device 20, as described on page 15, the method described can be used.

[0077] The unwinding reel unit 20 has at least one sensor unit 26 configured to acquire actual data during production. In the present embodiment, the sensor unit 26 is configured to measure any telescoping of the inner and / or outer turns of the coil 51 being unwound. This is data that is not normally available to the production system, as usually only the nominal inner and outer diameters are transmitted. When positioning the coil 51 on the reel head 21, the telescoping of the inner turns, or even the existence of a possible collapsed inner turn, is a disruptive factor that must be taken into account. The sensor unit 26 can, for example, comprise a camera and corresponding evaluation electronics.

[0078] Alternatively or additionally, the position and geometry of the strip start can be detected by a suitable sensor device. The position and geometry of the strip start are relevant for threading the strip start into any coil preparation and the number of any cuts, as well as for threading through system 1 from the unwinding reel 20 to the winding reel 30, and influence the strokes of the rolls and the achievable threading speed. The position and geometry of the strip start can also influence the penetration between the work rolls 11a, 11b of the rolling stand 11 insofar as it may be possible to penetrate a closed roll gap. However, it may also be necessary or advisable, for example for safety reasons, to open the roll gap completely or partially for the penetration. This can significantly influence not only the threading time but also scrap lengths / dimensional tolerances.

[0079] By measuring the center position of a coil 51 relative to a pallet truck or relative to a spool, the coil 51 can be corrected.

[0080] Page 16 of the travel paths of the bundle lift truck are positioned exactly in the middle on an unwind reel of the unwind reel device 20.

[0081] It is possible to process Coils 51 with or without a sleeve, which may necessitate additional sleeve handling. The processing sequences are therefore not always identical, but variable, although in all variations they are preferably fully automated.

[0082] For the automatic threading of the metal strip 50 by the system 1, the waviness of the metal strip 50 can alternatively or additionally be automatically detected, preferably optically, before any strip tension is applied. By inferring flatness values, actuators of the technological controls of automation level L1, such as bending systems, can be used early on, thereby achieving improved flatness over a longer strip section.

[0083] By measuring the band travel A / travel of the metal band 50 without band tension during threading, an automatic swiveling can be initiated as a corrective measure to ensure a central band path and thus a better quality of the inner windings of the finished coil 52.

[0084] By measuring the surface quality and / or surface roughness, detectable by appropriate, usually different, sensors, a uniform quality in the processing of the metal strip 50 can be ensured.

[0085] Through microstructure detection, for example via laser ultrasound or X-ray during coil preparation, coil mix-ups can be detected early and coil 51 removed from production. Damage to coil 51 and system 1, as well as defective rolling operations, can thus be stopped early. It is also possible to use feedback with the

[0086] Page 17 Automation level L3 to potentially repurpose the target product or downgrade the final product quality.

[0087] The monitoring and measurement procedures outlined above can be implemented individually or in various combinations. Some measurements, such as the position of coil 51 on a spool, only need to be performed once, while others, such as measuring tape tracking or waviness, can be repeated several times during threading to ensure continuous monitoring of the relevant parameters. The parameters of each step should be coordinated, and limit checks can be performed.

[0088] Using the described method, coil changeover times of less than 150 seconds, preferably less than 125 seconds, and particularly preferably less than 105 seconds, can be achieved. The coil changeover time is defined as the time from the loss of strip tension on the unwind reel of the first coil 51 until the build-up of strip tension on the subsequent coil 51. Equivalent times result from alternative definitions, such as the period from the start of unwinding the first coil 51 until the end of threading the subsequent coil 51.

[0089] Examples of changeover times:

[0090] 1. Framed CRM and RCM: without case handling: changeover time: <= 120 seconds, preferably <= 80 seconds, most preferably <= 60 seconds; with case or residual coil handling: changeover time <= 140 seconds; preferably <= 115 seconds, most preferably <= 95 seconds;

[0091] 2. Frame-based RCM (CCM): without case handling: changeover time: <= 130 seconds, preferably <= 90 seconds, most preferably <= 70 seconds; with case or residual coil handling: changeover time <= 150; preferably <= 125 seconds, most preferably <= 105 seconds.

[0092] Page 18 The process flow diagram for the automation of process sequences described with reference to Figure 2 is further illustrated by means of a different embodiment, namely a hot rolling mill of the type CFR (“Camberfree Rolling”, also known as camber-free rolling) which is not shown in the figures.

[0093] The rolling mill includes side guides in front of a roughing mill, which are preset to a target width of the incoming metal strip, in the form of a slab. Any existing strip sabering is detected before and during guiding by measuring the slab's position. If the sabering is within a predefined limit, the slab's geometry is altered by applying lateral pressure. The determination of the necessary pressure / stroke of the guide is controlled. If the sabering exceeds the permissible limit, special measures must be taken, ranging from speed reduction to ejection (production termination).

[0094] Example of ski-up / ski-down at the beginning of the strip in a finishing mill: The roll gaps of the finishing mill are set according to a predefined cutting plan. If a ski shape is detected at the beginning of the strip, a limit check determines whether safe threading through the roll gap is possible, or whether skidding is to be expected. If the limit is exceeded, the roll gaps are opened, for example, to allow safe threading.

[0095] Other possible applications include side guides in the outfeed, scale scrubbers / surface quality, automatic unthreading and coil handling, cutting optimization and trimming, and the treatment of the aluminum warm "alligator".

[0096] The presented automation of process flows enables reliable, reproducible quality for the product to be manufactured, while simultaneously...

[0097] Page 19: Plant utilization can be optimized. Operating modes and processes can be optimized, for example, with regard to energy efficiency, maximum productivity, and the like, which can be achieved in particular by eliminating the human factor. Output can be increased through shorter process times.

[0098] Operator intervention can be largely prevented, effectively transforming the operator into a "monitor," i.e., a process inspector with emergency intervention capabilities. On-site presence is not strictly necessary, making remote control of Plant 1 feasible in the future. Operator errors can be avoided, and the workload of the operating personnel is reduced. Production targets can be met more reliably. Occupational safety is improved.

[0099] Deviations exceeding a permissible limit allow for tracking why, for example, coil 51 or 52 was blocked. If necessary, it can be determined whether an alternative product can still be manufactured from it ("repurposing").

[0100] The automation described enables the early implementation of technological regulations for strip quality, especially within the framework of automation level L1.

[0101] The automation of process sequences presented here also enables the reproducibility of rolling conditions and coil qualities, especially for small batch sizes. The interaction between machines, concerning, for example, mechanics, hydraulics, electrical control circuits, and process control, can be harmonized and made reproducible.

[0102] Page 20 Where applicable, all individual features shown in the exemplary embodiments can be combined and / or exchanged without leaving the scope of the invention.

[0103] Page 21 Reference numeral list

[0104] 1 Metallurgical plant

[0105] 10 Rolling Road

[0106] 11 Rolling mill

[0107] 11a Working roller

[0108] 11 b Working roller

[0109] 20 Unwinding reel unit

[0110] 21 Haspeldom

[0111] 25 Coil changing device

[0112] 26 Sensor device

[0113] 30 Winding reel device

[0114] 31 Haspeldom

[0115] 35 Coil changing device

[0116] 50 metal band

[0117] 51 Coil

[0118] 52 Coil

[0119] 100 plant control

[0120] 110 Data section

[0121] 120 Process section

[0122] 121 Preset section

[0123] 122 Process model

[0124] 123 Correction section

[0125] 130 Specification section

[0126] F Conveyor direction

[0127] Page 22

Claims

1. Patent claims 1. Metallurgical plant (1) for the treatment of a metal product (50, 51, 52), wherein the plant (1) comprises: at least one treatment agent (10, 20, 30) for the treatment of the metal product (50, 51, 52); and a plant control system (100) comprising a process section (120) for controlling and / or regulating the plant (1), a data section (110) configured to acquire production data of the metal product (50, 51, 52) and provide it to the process section (120), and a target section (130) configured to provide the process section (120) with targets at least in the form of limits without correction requirements and limits with correction requirements, wherein the process section (120) includes a correction section (123) configured to compare the production data from the data section (110) with the targets from the target section (130) and, depending on this, to make corrections in the control and / or regulation of the plant (1),wherein the correction section (123) is set up to: in a case of minor deviations where the production data are within the limits without correction required, to perform no correction; in a case of permissible deviations where the production data are outside the limits without correction required but within the limits with automatic correction required, to perform correction calculations that lead to automatic corrective actions; and in a case of impermissible deviations where the production data are outside the limits with automatic correction required, to initiate special actions. Page 23 2. Metallurgical plant (1) according to claim 1 , characterized in that the presetting section (130) is further configured to provide the process section (120) with a presetting of work steps, preferably including their sequence.

3. Metallurgical plant (1 ) according to claim 1 or 2, characterized in that the process section (120) has a preset section (121 ) which is set up to calculate and set set values ​​for the at least one treatment agent (10, 20, 30) taking into account the production data from the data section (110) and the specifications from the specification section (130).

4. Metallurgical plant (1) according to one of the preceding claims, characterized in that the process section comprises one or more process models (122) are included and the correction section (123) is set up such that the process models (122) are included in the correction calculation of the correction section (123).

5. Metallurgical plant (1 ) according to claims 3 and 4, characterized in that the preset section (121 ) is set up to calculate the setting values ​​for the at least one treatment agent (10, 20, 30) taking into account the process models (122).

6. Metallurgical plant (1 ) according to claim 4 or 5, characterized in that the process section (120) is set up to perform an adaptation of the process models (122) taking into account the correction calculations of the correction section (123) and / or taking into account the calculation of the set values ​​in the preset section (121 ). Page 24 7. Metallurgical plant (1) according to one of the preceding claims, characterized in that at least one sensor device (26) is provided which is configured to detect actual data as at least part of the production data, wherein the production data preferably also include target data.

8. Metallurgical plant (1 ) according to one of the preceding claims, characterized in that the at least one treatment means (10, 20, 30) is a reeling device (20, 30) with a coil changing device (25, 35) for automatically changing a coil (51 , 52).

9. Metallurgical plant (1) according to claims 7 and 8, characterized in that the sensor device (26) is configured to detect a state of the coil (51, 52), preferably a telescoping of the inner and / or to measure the outer windings of the coil (51 , 52).

10. Method for treating a metal product (50, 51, 52) in a metallurgical plant (1), wherein the method comprises: Treating the metal product (50, 51, 52) using a treatment agent (10, 20, 30); and Controlling and / or regulating the plant (1) for carrying out the treatment of the metal product (50, 51, 52) by means of a process section (120) of a plant control system (100), further comprising a data section (110) that records production data of the metal product (50, 51, 52) and makes it available to the process section (120), and a specification section (130) that provides specifications to the process section (120) at least in the form of limits without correction requirements and limits with correction requirements, wherein Page 25 The process section (120) includes a correction section (123) which compares the production data from the data section (110) with the specifications from the specification section (130) and makes corrections to the control and / or regulation of the plant (1) depending on the comparison. In the case of minor deviations, where the production data are within the limits without the need for correction, the correction section (123) does not perform any correction; in the case of permissible deviations, where the production data are outside the limits without the need for correction but within the limits with automatic correction requirements, it performs correction calculations that lead to automatic corrective actions; and in the case of impermissible deviations, where the production data are outside the limits with automatic correction requirements, it initiates special measures.

11. Method according to claim 10, characterized in that the process section (120) has a preset section (121) which calculates and sets set values ​​for the at least one treatment agent (10, 20, 30) taking into account the production data from the data section (110) and the specifications from the specification section (130).

12. Method according to claim 10 or 11, characterized in that the process section comprises one or more process models (122) which are included in the correction calculation of the correction section (123).

13. Method according to claims 11 and 12, characterized in that the preset section (121 ) calculates the set values ​​for the at least one treatment agent (10, 20, 30) taking into account the process models (122). Page 26 14. Method according to claim 12 or 13, characterized in that the process section (120) performs an adaptation of the process models (122) taking into account the correction calculations of the correction section (123) and / or taking into account the calculation of the set values ​​in the preset section (121).

15. Method according to one of claims 10 to 14, characterized in that the at least one treatment means (10, 20, 30) is a reeling device (20, 30) with a coil changing device (25, 35) for automatically changing a coil (51, 52), wherein the production data preferably comprise a metrologically recorded state of the coil (51, 52). Page 27

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