Passage for a shaft of conveyor installations serving for delivery of bulk materials incorporates a screw thread which is located on the shaft and is surrounded by a flexible sealing sleeve

摘要

The passage for a shaft (1) of conveyor installations serving for delivery of bulk materials incorporates a screw thread (4) which is located at least on one shaft exit section, serves for return of material entering into this section, and is surrounded without a clearance by a flexible sealing sleeve (5) attached to a stationary section (6) of the installation.