Method and device for blowing gas on a running strip

摘要

The present invention relates to a method for acting on the temperature of a travelling strip (4) by blowing gas or a water/gas mixture, whereby a plurality of jets of gas or a water/gas mixture, extending toward the surface of the strip and arranged in such a way that the impacts (24, 34) of the jets of gas or water/gas mixture on each surface of the strip are distributed at the nodes of a two-dimensional network, are sprayed onto each face of the strip. The impacts (24) of the jets on one face (A) are not opposite the impacts (34) of the jets on the other face (B), and the jets of gas or water/gas mixture come from tubular nozzles (23, 33) which are supplied by at least one distribution chamber (21, 31) and extend at a distance from the distribution chamber in such a way as to leave a free space for the flow of the returning gas or water/gas mixture parallel to the longitudinal direction of the strip and perpendicular to the longitudinal direction of the strip.

主权项

1. A device for acting on the temperature of a travelling strip, the device comprising:
at least two blowing modules arranged opposite one another on either side of a zone of travel of the strip, each blowing module consisting of a plurality of tubular nozzles extending from at least one distribution chamber in the direction of the zone of travel of the strip, the nozzles being arranged in such a way that the impacts of jets from the tubular nozzles on each face of the strip are distributed at the nodes of a two-dimensional network, wherein, in order to reduce the vibrations of the strip which are induced by the blowing of gas or a gas/water mixture, the heads of the tubular nozzles extend at a distance from the distribution chamber in such a way as to leave a free space for the flow of the returning gas or water/gas mixture parallel to the longitudinal direction of the strip and perpendicular to the longitudinal direction of the strip, and the blowing modules are set in such a way that the jet impacts on one face of the strip are not opposite the jet impacts on the other face of the strip.