The invention relates to a device and a method for processing materials, such as granular material that is extracted from deposits, comprising an upright tubular container (2) and a central axle device (3) provided therein. A process chamber (5) for receiving the material (6) to be processed is provided between the axle device (3) and the inner wall (4) of the tubular container (5). The tubular container (2) is rotationally driven. In the process chamber (5), drivers (7, 7a, 7b, 7c, 8) are provided as working elements (9, 10, 19, 20).