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公开(公告)号：US20240284566A1
公开(公告)日：2024-08-22
申请号：US18571710
申请日：2022-06-09
发明人： Thomas MATSCHULLAT
CPC分类号： H05B7/148 , C21C5/5211 , F27B3/085 , F27D19/00 , H05B7/20 , F27D2019/0037
摘要： A control device of an electric arc furnace that controls, in a melting phase and subsequently in a flat bath phase, an energy supply device with first control values (A1), such that the energy supply device supplies electrical energy to electrodes of the electric arc furnace via a furnace transformer. The control device, in both phases, further controls a positioning device with second control values (A2), such that said positioning device positions the electrodes relative to the unmolten steel-containing material in the melting phase and relative to the molten steel in the flat bath phase. As a result, electric arcs are formed in both phases, by means of which the steel-containing material is melted or the molten steel is further heated.
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公开(公告)号：US20230256489A1
公开(公告)日：2023-08-17
申请号：US18012280
申请日：2021-05-26
CPC分类号： B21B37/165 , B21B37/46 , B21B37/54 , B21B37/58 , B21B2015/0064
摘要： A roll stand of a rolling mill is supplied with a metal strip by an upstream supply device at an in-feed speed (v), with said metal strip being rolled in the roll stand. A measuring device between the supply device and the roll stand detects a respective thickness value (d) of the metal strip for consecutive sections of the metal strip and supplies said value to a control device of the rolling mill. The control device determines final thickness deviations based on the preliminary thickness deviations. The control device determines a respective control value (A2, A3) for the roll stand and/or the supply device for the sections of the metal strip based on the final thickness deviation of the respective section of the metal strip and the final thickness deviations of multiple preceding and/or subsequent sections of the metal strip.
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公开(公告)号：US20230191465A1
公开(公告)日：2023-06-22
申请号：US17915350
申请日：2021-03-29
发明人： Klaus Weinzierl
IPC分类号： B21B37/74
CPC分类号： B21B37/74
摘要： A liquid coolant (6) is fed into a header line (4) by means of a pump assembly (5). Branch lines (9a to 9d), in which control valves (11a to 11d) are arranged, branch off from the header line (4) to application units (10a to 10d). The coolant (6) is applied to a hot rolled material (2) made of metal by means of the application units (10a to 10d), and the rolled material (2) is thus cooled. For limit modulation values (kLim) of the control valves (11a to 11d), a control unit (12) of the cooling unit (3) uses setpoint flows (Ka* to Kd) of the application units (10a to 10d) to determine individual working pressures (pAa to pAd) which must prevail in the header line (4) for the setpoint flows(Ka* to Kd*) to flow in the branch lines (9a to 9d).
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公开(公告)号：US20230111359A1
公开(公告)日：2023-04-13
申请号：US17916138
申请日：2021-04-08
IPC分类号： B22D11/16 , G05B19/418 , B22D11/12
摘要： A dynamic production planning method for a continuous casting plant for casting a strand with a production system which has a predefined production plan, which method includes comparing target production parameters with actual production parameters. If the actual production parameters deviate from the target production parameters, a strand image is created on the basis of actual production parameters. With the aid of the calculated strand image, a check is carried out within the predefined production plan and, if possible, a new production plan is created. If no solution can be found from the predefined production plan, the strand image is transmitted to a production planning system. The production planning system creates a new production plan from all available orders on the basis of a predefined optimization criterion. The new production plan is subsequently transmitted to the production system.
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公开(公告)号：US20220410235A1
公开(公告)日：2022-12-29
申请号：US17775479
申请日：2020-11-18
IPC分类号： B21B37/72 , G05B19/418
摘要： Sensors detect states of units of a plant for producing and/or treating a rolled product made of metal and transmit them to an automation system. The state signals (Z) are, in part, dimensional signals. The automation system determines, by taking into account the state signals (Z), control signal signals (S) for actuators associated with the units and actuates the actuators accordingly. The automation system includes at least one model-based system which models the behavior of the system and/or of the rolled product in real time. The automation system transmits the state signals (Z), the control signals (S) and/or signals derived therefrom at least in part via an open data network to a human-machine interface arranged at an operating location. The transmitted signals comprise at least one of the dimensional signals. The automation system takes specifications (V) from the human-machine interface in determining the control signals (S).
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公开(公告)号：US11364526B2
公开(公告)日：2022-06-21
申请号：US16651040
申请日：2018-06-12
发明人： Matthias Dressler , Andreas Maierhofer , Andreas Müller , Alexander Thekale , Slobodan Veljovic
IPC分类号： B21B37/40 , G01B7/28 , B21B37/28 , G05B19/416 , G05B19/18 , G05B19/19 , G05B19/23 , G05B19/35 , G05B19/414 , G05B19/29
摘要： A metal strip is rolled in a roll stand and a control device for the roll stand determines, by means of a working cycle, a number of manipulated variables for flatness actuators of the roll stand and actuates them accordingly. The control device implements an optimizer, which provisionally sets the current correction values, and determines a totality of flatness values. Then, the optimizer minimizes the relationship by varying the current correction variables. When determining the current correction variables (s), the optimizer considers linear ancillary conditions, based at least in part on a vector having the ancillary conditions upheld by the current correction values and a vector having the ancillary conditions upheld by the difference of the current correction values relative to the correction values of the preceding working cycle. The control device determines the manipulated variables for the flatness actuators in consideration of the determined current correction variables.
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公开(公告)号：US11318511B2
公开(公告)日：2022-05-03
申请号：US16783242
申请日：2020-02-06
发明人： Daniel Kotzian , Wilfried Tautz
摘要： Before the rolling of a metal strip on a finishing train, the actual width and actual temperature of portions of the metal strip are respectively detected. The portions of the metal strip are tracked while they run through the finishing train. The rolling stands are respectively assigned width controlling devices which determine the setpoint width and the actual width after the rolling in the assigned rolling stand, and a downstream additional setpoint value, by which the desired tension downstream of the assigned rolling stand is corrected in order to bring the actual width closer to the setpoint width. The downstream additional setpoint value is both taken into account in the determination of the actual width and fed to a tension controller, which sets an actual tension, in the metal strip downstream of the assigned rolling stand, in accordance with the corrected setpoint tension. Determining the downstream additional setpoint value by the difference between the setpoint width and the actual width of a portion of the metal strip.
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公开(公告)号：US11294338B2
公开(公告)日：2022-04-05
申请号：US16332873
申请日：2017-08-31
发明人： Dieter Bettinger , Kurt Herzog , Thomas Kuehas , Matthias Kurz , Andreas Maierhofer , Thomas Matschullat , Günther Winter
IPC分类号： G05B19/41 , G05B13/02 , G05B19/418 , B21B37/00
摘要： An automation system (1) determines control data (S′), outputs same to controlled elements (5) of the facility (ANL) and thereby controls the facility (ANL). Sensor devices (2) acquire measurement data (M) of the facility (ANL) and at least partly feed same to the automation system (1) and a man-machine interface (3). Said man-machine interface (3) receives planning data (P) from a production planning system (11) and/or control data (S′) and/or internal data (I) from the automation system (1). The interface outputs the data (M, S′, I) to a person (4). It furthermore receives control commands (S) from the person (4) and forwards them to the automation system (1). The automation system (1) processes the measurement data (M) and the control commands (S) when determining the control data (S′). An artificial intelligence unit (9) receives at least part of the measurement data (M), control data (S′) and/or internal data (I) and the data output to the person (4). It also receives the control commands (S). The artificial intelligence unit (9) processes the data (M, S′, I) and control demands (S) received and determines evaluation results (A) therefrom and makes the latter available to the person (4) and/or to the production planning system (11) and/or sets them for the automation system (1) in the form of control commands (5″) directly or via the man-machine interface (3). The data (M, S′, I) received by the artificial intelligence unit (9) are at least to some extent dimensional data. Said dimensional data (M, S′, I) comprise at least one image captured by a sensor device (2) or an image output via the man-machine interface (3), part of such an image, a time sequence of such images or a time sequence of a part of such images or an acoustic oscillation or an acoustic oscillation spectrum.
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公开(公告)号：US20210325112A1
公开(公告)日：2021-10-21
申请号：US16479734
申请日：2018-01-24
发明人： Hannes BEILE , Alexander MUELLER , Anton ROESSLE
摘要： A burner lance insert (1) for an electric arc furnace (2), includes a support body (3) that can be inserted into a wall opening (17) of the electric arc furnace (2). The insert has a front opening (5), a burner lance unit (7) which is mounted in the support body (3) in a rotatable manner about a rotational axis (A). A discharge channel (28) runs to a burner lance unit (7) discharge opening (29) lying in the front opening (5). A drive unit (9) rotates the burner lance unit (7) between two end positions in which the discharge opening (29) assumes different positions in the front opening (5) and the discharge channel (28) defines different discharge directions. The rotational axis (A) forms an angle between 30 degrees and 60 degrees, particularly preferably 40 degrees to 0 degrees, together with the direction of the gravitational force of the Earth after the support body (3) is inserted into the wall opening (17). The burner lance unit (7) is suitable for carrying out a burner operation as well as a lancing operation.
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公开(公告)号：US11103906B2
公开(公告)日：2021-08-31
申请号：US16463432
申请日：2017-11-28
发明人： Christian Lehner , Erich Opitz , Lukas Pichler , Florian Poeschl , Alois Seilinger , Klaus Weinzierl
摘要： A cooling system (2) for cooling metal rolling stock. A plurality of cooling bars (8) for applying a coolant onto the rolling stock, one dedicated coolant supply line (36) for each cooling bar (8), and a feed system (9) for guiding the coolant to the coolant supply lines (36). Each cooling bar (8) is connected to the feed system (9) via a dedicated coolant supply line (36). A bypass line (48, 52) for discharging a coolant flow from the feed system (9), is connected on the input side to a connection element (51, 53) of the feed system (9).
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