| 摘要 |
The invention relates to a device (a cylindrical refiner or conical refiner) for removing impurities from shredded plastic, comprising at least one first cleaning body with an outer surface, which forms a first cleaning surface and which is conical and/or cylindrical at least in some sections, and at least one second cleaning body with an inner surface, which forms a second cleaning surface and which is conical and/or cylindrical at least in some sections. The second cleaning body is designed to receive the first cleaning body, said cleaning surfaces lying opposite one another and delimiting a cleaning gap between one another. The device further comprises a drive device, with which at least one of the cleaning bodies can be rotated about the cleaning body longitudinal axis, and a supply device, with which shredded plastic can be supplied into the cleaning gap. Each of the cleaning surfaces of the cleaning bodies has a plurality of cleaning ribs which extend over the cleaning surfaces, at least one flank of the cleaning ribs being inclined or curved, and multiple cleaning webs which run transversely to the direction of extension of the cleaning ribs are arranged between at least some adjacent cleaning ribs. The invention further relates to a corresponding method. |
