| 摘要 |
PURPOSE: A fermentor is provided to effectively agitate materials while increasing energy efficiency, and to simplify structure of the fermentor without an agitator. CONSTITUTION: A fermentor is formed to closed structure fermenting fermentation liquid. The fermentor does not have a separated agitator. A temperature control coil for the temperature control inside and an air feed unit of a propeller form which supply the air with a vortex shape to lower part.
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