Drier

Abstract: Described is a drier for industrial plants for the production of bituminous macadams comprising a drying drum (2) rotating about its own main axis of extension (R2), a loading head (3) at a first end (2a) of the drying drum for introducing a virgin inert lithic material into the drying drum, an unloading head (4) at a second end (2b) of the drying drum, a burner (8) for generating a flame (9) in a combustion chamber (7) and a first drying flow (F9) in a drying chamber (6), a feed device (11), positioned downstream of the combustion chamber (7) and upstream of the unloading head (4) for introducing a recycled bituminous material into the drying drum (2); the drying drum (2) comprises a drying chamber (12) downstream of the feed device (11) and upstream of the unloading head (4) and a combustion chamber (13) downstream of the drying chamber (12) and upstream of the unloading head (4) and the drier comprises a system for generating a second flow (F15) of drying gas in the second drying chamber (12). Figure 3 is the representative figure.

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