| 摘要 |
PROBLEM TO BE SOLVED: To stir solid-gas mixture with carrier gas supplied from a nozzle in storing and carrying powder, while vibrating the nozzle with the flow of the blown gas to vibrate a powder container and a carrying passage, thereby increasing efficiency of excitation to be applied for the stirring with the blown gas, resulting in preventing a bridge phenomenon of the powder and a settling phenomenon on a container wall, to significantly improve powder transportation.SOLUTION: An opening/closing member (a bell) constituting a movable side of an annular blown gas slit of a nozzle is closed with a biasing force of a resilient body. The slit is opened with the static pressure of supplied compressed gas for blowing. A flow path for the compressed gas is bent in the bell so that dynamic pressure at a bending point is applied in a direction where the blown gas slit is closed. Opening/closing operation is continued by slit opening operation with the static pressure and closing operation with the dynamic pressure, to mechanically vibrate a container wall. The flow of the blown gas is increased as wells as exciting force, to enhance energy efficiency. |
