Vorrichtung zur Wärmebehandlung einer Warenbahn

摘要

The invention relates to a device for the thermal treatment of a continuously moveable web of material (2) with a gaseous treating agent which is repeatedly supplied and removed. The flow of circulating air (4) is guided through a screen (9) for purification. The screen (9) is associated with a cleaning device (13). In order to ensure that all parts which are intercepted in the screen are combusted or chemically converted so that they can be circulated in the flow of circulating air (4), a burner (13) is provided as a cleaning device (13) extending perpendicularly to the direction of conveyance (14) of the screen (9) over the entire width thereof.