Inserter of poorly flowing granular material into pneumatic transportation tube

摘要

The inserter passes the material through an exit aperture into a pneumatic transportation tube (40) with a pressure vessel (10) and has at least one movable built-in element. The pressure vessel widens downwards towards the tube and has an exit bottom (44) which can move relative to the vessel walls (14). Scraping elements built out from it pass over the exit aperture (38), which has an air jet (54) in it. There is chamber (39) between the exit aperture and the tube. This chamber is connected to a compressed air line (42). The vessel walls are angled inwards.