| 摘要 |
A device for mixing powder materials of periodical action with a variable-speed drive comprises risers of a mixing drum of cylindrical type and is driven by an arc-type stator variable-frequency induction motor. The cylindrical mixing drum, whose internal surface is conical (cone angle of the surface is 15°) on each side of the drum ends to its central portion, is closed at both ends by caps welded thereto. Thus, a loading-unloading window is located on the side surface of drum and the drive shaft driven by the arc-type stator variable-frequency induction motor is located on the side of drum. |
