| 摘要 |
An apparatus for handling a fine bulk material including a tubular member formed of a gas permeable material, a tubular member formed of a gas impermeable material encompassing the first mentioned tubular member, having an inlet and outlet at opposite ends thereof, a helical member mounted on the first mentioned tubular member, means for rotating the first mentioned tubular member and means for injecting a fluid under pressure through the first mentioned tubular member into the annular passageway disposed between such tubular members including the helical member, precluding the settling of material being conveyed in such passageway. |
| 主权项 |
1. An apparatus for handling a fine bulk material comprising:
a support; a first tubular conduit formed of a gas impermeable material journalled in said support, having a closed end providing an axially disposed passageway with at least one radial outlet; a second tubular conduit formed of a gas permeable material, encompassing and spaced from said first tubular conduit, having closed ends, providing a first annular passageway communicating with said radial passageway in said first tubular conduit; a helical member mounted on said second tubular conduit: a third tubular conduit formed of a gas impermeable material mounted fixedly on said support, having an inlet adjacent an end thereof, encompassing and spaced from said second tubular conduit, providing a second annular passageway including said annular member, closed at one end, opened at a spaced outlet end and communicating with said inlet of said third tubular conduit, adjacent said closed end thereof; means for injecting a fluid under pressure into said first passageway and through said radial passageway, said first annular passageway and said permeable tubular conduit, sufficient in precluding the settling of said material in said second annular passageway, between flights of said helical member; and means for rotating said first tubular conduit. |
