Application devices for cooling sections, having a second connection

Abstract

A cooling section () is situated in a rolling line or upstream or downstream of the rolling line. A hot metal rolled material () is cooled in the cooling section. A control device () of the cooling section () dynamically determines setpoint actuation states (S*) for control valves () situated in supply lines () and actuates the control valves () accordingly. Main flows (F) of a liquid, water-based coolant () are supplied to application devices () of the cooling section () via the supply lines () in accordance with the actuation. The supply lines () conduct the main flows (F) to buffer regions () of the application devices (). Proceeding from there, cooling flows (F) of the coolant () are applied to the hot rolled material (). The control device () also dynamically determines setpoint actuation states (S*) for active devices () and actuates the active devices () accordingly. The active devices () conduct additional flows (F) of a further medium () to the buffer regions () via further supply lines () in accordance with the actuation. The cooling flows (F) depend on both the main flows (F) and the additional flows (F). The additional flows (F) are positive or negative depending on the actuation state (S*) of the active devices (). The control device () adjusts the additional flows (F) by correspondingly actuating the active devices () such that the cooling flows (F) are as identical as possible to setpoint flows (F*) of the coolant () at all times.