Abstract
In the case of collecting grains and removing muddy deposits, especially those containing contaminants, it is very difficult to lift them up effectively by means of suction alone. Our investigations revealed that effective and smooth collection and transportation can be performed by mounting an injector at the collecting mouth in order to fluidize the settled bed. A sand collector with an injector at the collecting mouth can be applied not only for gases but also for liquids as a carrier and can transport many kinds of grains, such as sand and other relatively small particles. Several variables affect the performance of this device. In this paper, the fundamental characteristics of the system and its application are reviewed.
