Method and device in contact-free treatment of a web

摘要

A method and device for contact-free treatment of a web (W) in which the web (W) is treated, for example supported, reversed, spread, carried, and/or dried, by means of blowings which provide a carrier-face (KP) zone. The carrier-face (KP) zone has a curved form regulatable in a direction (T) transverse to the direction of progress (S) of the web (W). The nozzle-carrier face unit (17) of the device (10) is bent to the curved form in the cross direction (T) of the machine while a frame part (11) of the device (10) is kept in a stationary position. The device includes a regulation arrangement (30) for bending the nozzle-carrier-face unit (17).