DEVICE FOR PREPARATION AND VACUUM DELIVERY OF LOOSE MATERIALS Russian patent published in 1997 - IPC

FIELD: mechanical engineering; materials handling; delivery of material in tight layer. SUBSTANCE: device has housing divided into two parts 1 and 2 connected by flexible tie 7. Perforated member 6 is rigidly installed in upper part 1 of housing without separating from its walls. Lower perforated members 12 are coupled with member 6. Members 12 are not coupled with hopper and are installed for vibration in transported material. Lower part 2 of housing is connected with transportation main line 10 through discharge hole 9. EFFECT: enlarged operating capabilities. 1 dwg