Plugging prevention device

A plugging prevention device (2) for a mill (1) having a hollow body (8) closed by a milling cup (4) in which a rotor (3) is rotatably arranged wherein the milling cup (4) has a bottom part (42) and a side-wall part (41) with openings, characterized in that the plugging prevention device (2) comprises a striking section and interconnecting means wherein the plugging prevention device (2) is arrangeable in the mill (1) such that the striking section at least partly covers the bottom part (42) of the milling cup (4) and such that the plugging prevention device (2) is torque proofly connected with the rotor (3) via the interconnecting means. In use, such a plugging prevention device (2) being arranged inside a mill (1) rotates together with the rotator (3) due to its torque proof connection with the rotator (3). Thus, the milling good moving, for example flowing, into the direction of the bottom part (42) of the milling cup (4) hits onto the rotating striking section of the plugging prevention device (2). Thereby, centrifugal forces are transmitted to the milling good such that it is moved into the direction of the side-wall (41) part of the milling cup (4). At this side-wall (41) part it is affected by the rotator (3) and pressed through the openings of the side-wall part (41) of the milling cup (4). Additionally, when hitting onto the striking section of the plugging prevention device (2), lumps of milling good can be fractured such that essentially no lumps are present in the milling good while being pressed though the side-wall part (41) of the milling cup (4) by the rotator (3).