AGITATION DEVICE

To provide an agitation device capable of suppressing trapping of an air bubble due to a plate-like member arranged in the vicinity of a liquid level, irrespectively of an amount of liquid to be agitated.SOLUTION: An agitation device is constituted of an agitation vessel 6 filled with liquid 7 to be agitated, an agitation blade 8, and a rotary shaft 9 attached with the agitation blade 8. The agitation device is provided with a plate-like member 10 floating on a liquid level of the liquid 7 to be agitated or is provided with a mechanism in which the plate-like member 10 can move along the rotary shaft 9, so that the plate-like member 10 is arranged in the vicinity of the liquid level irrespectively of an amount of the liquid to be agitated and trapping of an air bubble is suppressed.SELECTED DRAWING: Figure 1 【課題】被撹拌液量によらず、板状部材を液面近傍に配置させ、気泡の噛みこみを抑制可能な撹拌装置を提供する。【解決手段】被撹拌液体７の充填された撹拌槽６、撹拌翼８、および撹拌翼８が取り付けられた回転軸９から構成され、被撹拌液体７の液面を浮遊する板状部材１０を設ける、もしくは板状部材１０が回転軸９に沿って移動可能な機構を設けることで、被撹拌液量によらず板状部材１０を液面近傍に配置させ、気泡の噛みこみを抑制する構成とする。【選択図】図１