| 摘要 |
A stirrer unit (10) for a fermenter (1) in a biogas plant (100), having a housing (11) and a drive unit (12) for rotatable driving of the stirrer blades (13-15). The drive unit (12) comprises a drive shaft (16) and an electric drive motor (20), the drive motor (20) being accommodated in the sealed housing (11). The drive motor (20) comprises an outer hollow stator (21) and an at least partly hollow, rotatable rotor (22) accommodated centrally therein. The rotor (22) is rotatably mounted on the housing (11) and has a coupling unit (23) for rotationally fixed coupling to the drive shaft (16), in order to drive the at least one stirrer blade (13-15) by means of the drive shaft (16). |
