| 摘要 |
PURPOSE: A sound wave drying apparatus is provided to rapidly dry grains while optimally maintaining the water content of grains by drying the grains through sound wave energy and the gas flow of high pressure. CONSTITUTION: A sound wave drying apparatus comprises a compressor(10), a compressed air inflow pipe(20), a supersonic nozzle(30), an extended pipe for expanded jet(40), a piston(60), a drying chamber(50), and a dried stuff container(70). The compressor compresses gas and increases the pressure and speed of the gas. The compressed air inflow pipe lets air to flow into the sound wave drying apparatus. The supersonic nozzle supersonically changes compressed air. The extended pipe for expanded jet develops the expanded jet sprayed from the supersonic nozzle. The piston controls the sound wave into optimum frequency. The drying chamber transfers gas flow of high pressure to the grains. The dried stuff container steadily accepts the grains.
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