抄録
In the pneumatic transportation, the experiments of the particles collecting unit were carried out by mounting the injection flow at the center of the suction nozzle. It was found by flow visualization that the injection flow progresses the fluidization of the particles bed. As a quantitative parameter, a fluidized volume is introduced and show the effect of the injection flow upon the collection of particles. It was found that these exists the most probable flow rate of injection.
