Method and device for cooling surfaces in casting installations, rolling installations or other strip processing lines

摘要

The invention relates to a method for to-be-cooled surface of cast material, rolled material (1) or a roll. Provided for the method is a nozzle, which comprises an inlet (3) and an outlet (5) lying opposite the surface to be cooled. Also provided is a preferably single-phase volume flow (V) of a cooling fluid, which is fed to the nozzle (2) via the inlet (3) and leaves the nozzle (2) through the outlet (5). According to the invention, the nozzle outlet (5) is mounted at a variable distance (d) from the surface to be cooled, wherein the volume flow (V) of the cooling fluid fed to the inlet (3) of the nozzle (2) is set in such a way that, in accordance with the Bernoulli principle, the nozzle (2) is sucked firmly against the surface (1) to be cooled. In addition, the invention is directed to a cooling device (10) for carrying out the method according to the invention and to a rolling device comprising this cooling device (10).

主权项

1. A method of cooling a surface of cast stock, rolling stock (1), or roll, comprising the following steps:
providing a nozzle (2) having an inlet (3) and an outlet (5) located opposite a cooled surface; providing a single-phase volume flow (V) of a cooling fluid fed to the nozzle (2) via the inlet (3) and that leaves the nozzle through the outlet (5), characterized in that, at least the nozzle outlet (5) is supported at a variable distance (d) to the cooled surface; and the volume flow (V) of the cooling fluid fed to the inlet (3) of the nozzle (2) is so freely self-adjusted that the nozzle (2) is aspirated toward the cooled surface according to Bernoulli principle.