STIRRING DEVICE AND STIRRING BLADE

To provide a stirring device and the like that can perform fluid stirring and fluid discharging in a balanced manner.SOLUTION: A stirring device 1 comprises a stirring tank 2 that stores fluid and can discharge the fluid through a discharging port 221 provided in a bottom part 22 thereof and a stirring blade 3 that rotates to stir the fluid in the stirring tank 2, in which a distance from a lower part 32 thereof to the bottom part 22 of the stirring tank 2 becomes larger as going from the discharging port 221 toward a side wall of the stirring tank 2. It is preferable that a maximum diameter d3 of the lower part 32 of the stirring blade 3 be 0.3 times or more and 0.7 times or less a diameter D of the stirring tank 2, and it is further preferable that the maximum diameter be 0.35 times or more and 0.5 times or less the diameter D of the stirring tank 2. In the stirring blade 3, a small-diameter part 332 having a diameter d2 smaller than the maximum diameter d3 of the lower part 32 is provided above the lower part 32.SELECTED DRAWING: Figure 1 【課題】流体の撹拌と排出をバランス良く行える撹拌装置等を提供する。【解決手段】撹拌装置１は、流体を収容し、その底部２２に設けられる排出口２２１から当該流体を排出可能な撹拌槽２と、回転によって撹拌槽２内の流体を撹拌する撹拌翼３であって、その下部３２と撹拌槽２の底部２２の距離が排出口２２１から撹拌槽２の側壁側に向かうにつれて大きくなる撹拌翼３と、を備える。撹拌翼３の下部３２の最大径ｄ３は、撹拌槽２の径Ｄの0.3倍以上0.7倍以下とするのが好ましく、撹拌槽２の径Ｄの0.35倍以上0.5倍以下とするのが更に好ましい。撹拌翼３は、下部３２の最大径ｄ３より小さい径ｄ２の小径部３３２を下部３２の上方に備える。【選択図】図１