COOLING OF A METAL STRIP USING A POSITION-CONTROLLED VALVE DEVICE
    81.
    发明申请
    COOLING OF A METAL STRIP USING A POSITION-CONTROLLED VALVE DEVICE 审中-公开
    使用位置控制的阀装置冷却金属条

    公开(公告)号:US20160008861A1

    公开(公告)日:2016-01-14

    申请号:US14768076

    申请日:2014-02-07

    CPC classification number: B21B45/0218 C21D1/667

    Abstract: To cool a metal strip (1), liquid coolant (5) is supplied to the strip by a supply device (9) from a feed line (10). A valve (13) in the feed line (10) sets the valve (13) to a respective opening position (s) for adjusting the coolant flow (F) to the metal strip (1) per unit of time. An upstream condition detection device (14) upstream of the valve device (13) in the feed line (10) detects an upstream condition (ZV) of the coolant (5). A control unit (6) determines a set point (s*) for an opening position (s) of the valve device (13) corresponding to the set point (F*) for the coolant flow (F) based on a set point (F*) for the coolant flow (F*), the upstream condition (ZV) of the coolant (5) and a valve characteristic (C) of the valve device (13). The valve characteristic (C) follows a characteristic curve (K) of the coolant flow (F) as a function of the opening position (s) of the valve device (13), relative to a reference condition (ZR) of the coolant (5) upstream of the valve device (13) in the feed line (10). The control unit (6) sets the opening position (s) of the valve device (13) according to the set point (s*) that has been determined.

    Abstract translation: 为了冷却金属条(1),液体冷却剂(5)通过供给装置(9)从进料管线(10)供应到条带。 供给管线(10)中的阀(13)将阀(13)设定为相应的打开位置,用于每单位时间调节金属带(1)的冷却剂流量(F)。 在进料管线(10)中阀装置(13)上游的上游状态检测装置(14)检测冷却剂(5)的上游状态(ZV)。 控制单元(6)基于设定点(F)确定对应于冷却剂流(F)的设定点(F *)的阀装置(13)的打开位置的设定点(s *) F *),冷却剂(5)的上游条件(ZV)和阀装置(13)的阀门特性(C)之间的关系。 阀特性(C)相对于冷却剂的参考条件(ZR),遵循作为阀装置(13)的打开位置的函数的冷却剂流(F)的特性曲线(K) 5)在进料管线(10)中的阀装置(13)的上游。 控制单元(6)根据已经确定的设定点(s *)设定阀装置(13)的打开位置。

    SUPERHEATING OF AN EXPORT GAS USED IN A REDUCTION PROCESS, IN ORDER TO BALANCE OUT AMOUNT FLUCTUATIONS, AND DEVICE
    82.
    发明申请
    SUPERHEATING OF AN EXPORT GAS USED IN A REDUCTION PROCESS, IN ORDER TO BALANCE OUT AMOUNT FLUCTUATIONS, AND DEVICE 审中-公开
    在减少过程中使用的出口气体的超级加氢,以达到平衡溢出量的变化和装置

    公开(公告)号:US20150330707A1

    公开(公告)日:2015-11-19

    申请号:US14652511

    申请日:2013-10-10

    Abstract: A method and a device for balancing out amount fluctuations while simultaneously increasing the temperature of an export gas (2) used in a reduction process (1). A first partial amount (3) of a recycling gas (4) is cooled in at least one recycling-gas cooler (5) to form a cold recycling gas (6) and the cold recycling gas (6) is fed to the export gas (2) in a pressure-controlled and/or amount-controlled manner in order to balance out amount fluctuations of the export gas (2). A second partial amount of the recycling gas (4) is fed to the export gas (2) as hot recycling gas (7) having a higher temperature than the cold recycling gas (6). Then an export gas mixture (8) of the cold recycling gas (6) and the hot recycling gas (7) is introduced into the reduction process (1), wherein the temperature of the export gas mixture (8) is higher than the temperature of the export gas (2). The temperature of the export gas (2) or of the export gas mixture (8) is set in such a way that temperature is higher than the dew point or dew point temperature of the export gas mixture.

    Abstract translation: 一种用于平衡出量波动同时提高还原过程(1)中使用的出口气体(2)的温度的方法和装置。 再循环气体(4)的第一部分量(3)在至少一个再循环气体冷却器(5)中被冷却以形成冷回收气体(6),并且将冷回收气体(6)供给到出口气体 (2)以压力控制和/或数量控制的方式,以平衡出口气体(2)的量的波动。 再循环气体(4)的第二部分量作为具有比冷再循环气体(6)更高温度的热再循环气体(7)供给到输出气体(2)。 然后将冷再循环气体(6)和热再循环气体(7)的出口气体混合物(8)引入还原过程(1)中,其中出口气体混合物(8)的温度高于温度 的出口气体(2)。 出口气体(2)或出口气体混合物(8)的温度设定为温度高于出口气体混合物的露点或露点温度。

    Device for the inductive heating of a workpiece in a rolling mill

    公开(公告)号:US12256476B2

    公开(公告)日:2025-03-18

    申请号:US17422237

    申请日:2020-01-13

    Abstract: A device (1) for inductive heating of a workpiece (2) in a rolling mill, the device (1) including: a converter (3) for creating an alternating voltage, a capacitor bank (6) electrically connected to the converter (3), and having a plurality of capacitors (7) connected in parallel, a working field (8), in which an upper coil (10) and a lower coil (11) are arranged. The workpiece (2) is able to be passed between the coils (10, 11) and is thereby inductively heated by cross-field heating. A housing (4) arranged next to, below or above the working field (8). The converter (3) and capacitor bank (6) are arranged in the housing (4). The coils (10, 11) are each electrically connected to the capacitor bank (6) by a flexible cable (12, 13). The cable (12, 13) is a coaxial cable (27), with one phase of the alternating voltage applied to an inner conductor (28) and the other phase of the alternating voltage applied to an outer conductor (29) of the coaxial cable (27). The cables (12, 13) are cooled by a fluid, such as air or water (21).

    OPTIMIZATION METHOD FOR OPERATING PLANTS IN THE PRIMARY INDUSTRY

    公开(公告)号:US20240192665A1

    公开(公告)日:2024-06-13

    申请号:US18554390

    申请日:2022-03-23

    CPC classification number: G05B19/41835 G05B2219/31449 G05B2219/45234

    Abstract: An optimization method in which a computer ascertains expected values (E1) for actual variables (I1) of a technical process based on values (R) for target variables (Z1) of the technical process that attain the values (R) as far as possible. From data records (D), the computer provisionally selects a number (n1) of records (D) in which the variables (I1) display a minimum distance from the values (E1). The computer then ascertains expected values (E2) for the actual variables (I2) based on the values (R) and the values (E1). From the provisionally selected data records (D), the computer selects a predetermined second number (n2) of data records (D) in which the variables (I1, I2) display a minimum distance from the values (E1, E2). The computer ascertains set values (S) for the variables (Z2) for a yet-to-be-executed cycle to attain variables (Z1) as close to possible to the values (R).

    Cold rolling of rolled stock
    90.
    发明授权

    公开(公告)号:US11975371B2

    公开(公告)日:2024-05-07

    申请号:US17626949

    申请日:2020-07-14

    Abstract: A rolling device (1), a method and a rolling train (35) for the cold rolling of rolled stock (3). The rolling device (1)-a rolling stand (5), multiple assembly sets for optionally assembling the rolling stand (5) with one of the assembly sets, and a working-roll drive. Each assembly set comprises two working rolls (7, 8), and for each working roll (7, 8) two working-roll chocks (9). A spindle head (11), can be connected to a working roll journal (16) of the working roll (7, 8). The working rolls (7, 8) of different assembly sets have different working-roll diameter ranges, which are determined by a respective minimum working-roll diameter and maximum working-roll diameter. The rolling stand (5) has mountings (19) for a respective working-roll chock (9) of an assembly set. The working-roll drive has two drive spindles (27), each for driving a working roll (7, 8) via the spindle head (11) assigned to the working roll (7, 8) by rotations about a longitudinal axis of the drive spindle (27).

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