COOLING SECTION COMPRISING POWER COOLING AND LAMINAR COOLING

摘要

A cooling section for flat rolling stock (1) has a working region (2), through which the flat rolling stock (1) is guided. The working region (2) can be supplied with a liquid coolant (4) by means of a number of spray bars (3i). The liquid coolant (4) is fed from a reservoir (7) for the liquid coolant (4) to the spray bars (3i) by means of a pump (5) and a supply system (6). Valves (9i) are arranged upstream of the spray bars (3i) in the supply system (6). Opening positions (si) of the valves (9i) are set by a control unit (10) of the cooling section according to a respective sub-flow (fi) that is to be applied to the flat rolling stock (1) by means of each spray bar (3i). The delivery rate (M) of the pump (5) and/or a line pressure (p) generated by the pump (5) in the supply system (6) are set by the control unit (10) according to the total flow (F) that is to be applied to the flat rolling stock (1) by means of all the spray bars (3i).