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Passive acoustic and vibrometric methods were investigated for the detection and monitoring of changes in bed fluidity in a large scale gas–solid fluidized bed after liquid injection. Water was injected into a 9tonne air-fluidized bed of silica sand using an industrial nozzle and pre-mixer assembly. Acoustic signals were recorded using non-intrusive and externally mounted microphones. Vibration data...
Hydrotransport of solids through a pipe is a cost and energy efficient method to transport solid material over long distances. A problem in the hydrotransport of fine particle slurries is the presence of large material in the line, such as rocks or metal fragments broken off shovels. These rocks may enter the slurry line through breaks in screens. This large material can damage booster pumps and downstream...
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