| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a control apparatus of a hot rolling line which achieves a target required time for rolling, and suppresses energy consumption. <P>SOLUTION: The control apparatus includes: an initial schedule calculation device which calculates a flow rate of a cooling spray and a speed pattern of a rolling speed; a schedule correction device which corrects the flow rate of the cooling spray, and corrects the speed pattern when it is failed that a finishing mill output side temperature reaches a target value over a whole length of a material to be rolled only by the correction of the flow rate of the cooling spray, and when a speed change rate relating to the speed pattern is input; a rolling time prediction calculation device which calculates a required time for rolling the material to be rolled by using the speed pattern; a rolling time adjusting device which outputs the speed change rate calculated so that the required time for rolling is within the target rolling time, to the schedule correction device; and an energy consumption adjusting device which outputs the speed change rate, that is calculated so that the energy consumption obtained by temporal integration of rolling power calculated by using the speed pattern becomes minimum, to the schedule correction device. <P>COPYRIGHT: (C)2012,JPO&INPIT |
