| 摘要 |
A pneumatic conveying apparatus for conveying loose material comprises a device for feeding material to be conveyed, into a container, and a conveyor nozzle for producing a jet of pressure gas for entraining material into a conveyor conduit. An annular nozzle array or annular gap is provided around the conveyor nozzle, to produce a flat flow of gas, which is concentric to the jet of gas produced by the conveyor nozzle. The jet of gas and the flat flow combine in a gap between the conveyor nozzle and the adjacent mouth of the conveyor conduit, and pass into the conveyor conduit, with the material to be conveyed being controllably entrained thereby. The installation is controlled to operate in the range of maximum loading of material in the conveying gas flow. |
