| 摘要 |
PROBLEM TO BE SOLVED: To provide a new liquid agitating device with stable liquid level, excellent in efficiency, excellent in gas involving effect and gas-liquid dispersion effect when used for gas-liquid mixing, increased in shear fields and turbulence of streams to promote the mixing when used for liquid-liquid mixing, and excellent in uniform dispersion of solid when used for solid-liquid mixing. SOLUTION: This liquid agitating device comprises a vertical vessel, an agitating blade and an agitating unit which has a cylindrical tube and is disposed at the position where it does not come into contact with the bottom of the vertical vessel in the vertical direction of the vertical vessel. The cylindrical tube is provided with a great number of pores on the wall surface so that the material inside the vertical vessel can move to the inside or outside of the cylindrical tube through the pores.
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