| 摘要 |
In a plant (1) for drying a web of material (2), the web is fed through a housing (4) from an entry (6) to an exit (8). The housing (4) contains superposed, horizontal drying decks, which are defined by blow boxes (9), which at their upper side discharge hot air, which is used to dry the web (2) and keep it floating during the feeding thereof through the housing. The web (2) is led zigzag across the drying decks. A plurality of fans (21) are used, which have an adjustment member each for adjusting the air flow emanating from the fan, to supply a respective group of blow boxes (9) with hot air. The power consumption of the plant (1) is reduced by the fact that the air flow emanating from each fan (21) is adjusted with the aid of the respective adjustment members at a level, which is slightly higher than the lowest air flow level which is required to keep the web (2) floating, via the group of blow boxes (9) which is supplied by the fan (21) in question, at that blow box in the group which, seen along the web (2), is located closest to the entry (6) of the housing (4). |
