Extraction assembly for removing granular material from silo comprises first extractor and second extractor arranged beneath it and below base of silo.

摘要

The extraction assembly has a primary extractor that uses an endless screw thread (21) driven in rotation that is parallel to the base of the silo. It drives material (5) towards an outlet (29) that is provided at the center of the silo. A secondary extractor (28) is provided below the primary extractor. This recovers, in a position in the base of the silo, the material extracted by the primary extractor.