Apparatus for conveying and separating loose material

摘要

Conveying apparatus for sand, gravel and the like comprises a conveying head at the lower end of a lower pipe portion sealed to and displaceable telescopically relative to an upper pipe portion which is not longitudinally displaceable. An annular interspace between the pipe portions is filled with a pressurized sealing medium. The upper end of the upper pipe portion discharges via an impingement head into a horizontal classifying drum.