Abstract: The invention relates to a device for manufacturing coated materials, the device comprising: a furnace comprising an enclosure (2) that is designed to be caused to rotate, that has an inside wall (2A) and that is provided with a main inlet (3) designed to receive non-coated new granular materials (25) or recycled granular materials (25) or a mixture of both of these types of granular materials, and an outlet for the bituminous coated materials that are manufactured inside the enclosure (2); heater means defining a combustion zone (4) inside the enclosure (2) and generating a drying flow suitable for drying the granular materials (25); and protective means for protecting the inside wall (2A), which means are situated in the combustion zone (4); said device being characterized in that the protective means are formed by a plurality of plates (13) that extend at some distance away from or else against the inside well (2A), and that are mutually overlapping in part so as to protect the inside wall (2A) thermall

Abstract: A device for manufacturing hot-mix coated materials includes an oven (1) having an enclosure (2) provided towards its two opposite ends with a main inlet (3) designed to receive granular materials and with a main outlet; and a heater (10) defining a combustion section (5) inside the enclosure (2). The enclosure (2) starting with the combustion section (5) and continuing with a drying section (6), and then with a mixing section (7). The device is further provided with a bypass outlet (11) and with an external mixer (12) that is connected to the bypass outlet (11), which outlet is fitted with a blocking system (15) allowing granular materials to pass towards the inlet (13) of the external mixer (12) and a closed position allowing granular materials to pass towards the mixing section (7).

Abstract: The invention relates to a device for manufacturing hot-mix coated materials, e.g. materials coated with bitumen, the device comprising: an oven (1) comprising an enclosure (2) provided towards its two opposite ends with a main inlet (3) designed to receive granular materials and with a main outlet; and heater means (10) defining a combustion section (5) inside the enclosure (2), said enclosure (2) starting with said combustion section (5) and continuing with a drying section (6), and then with a mixing section (7); the device being characterized in that it is provided with a bypass outlet (11) and with an external mixer (12) that is connected to said bypass outlet (11), which outlet is fitted with a blocking system (15) allowing granular materials to pass towards the inlet (13) of the external mixer (12) and a closed position allowing granular materials to pass towards the mixing section (7).

Abstract: The invention relates to a device for manufacturing coated materials, the device comprising: a furnace comprising an enclosure (2) that is designed to be caused to rotate, that has an inside wall (2A) and that is provided with a main inlet (3) designed to receive non-coated new granular materials (25) or recycled granular materials (25) or a mixture of both of these types of granular materials, and an outlet for the bituminous coated materials that are manufactured inside the enclosure (2); heater means defining a combustion zone (4) inside the enclosure (2) and generating a drying flow suitable for drying the granular materials (25); and protective means for protecting the inside wall (2A), which means are situated in the combustion zone (4); said device being characterized in that the protective means are formed by a plurality of plates (13) that extend at some distance away from or else against the inside well (2A), and that are mutually overlapping in part so as to protect the inside wall (2A) ther