A crystallization device (4) includes a stirring blade (W) including a plurality of radially penetrating holes (h) and rotating about a rotating shaft (3), a reaction tank (1) having a bottomed cylindrical shape and concentrically accommodating the stirring blade (W) inside, a first liquid supply portion (5a) provided on the reaction tank (1) and supplying a first reaction liquid (L1) to the inside of the reaction tank (1), and a second liquid supply portion (5b) provided on the stirring blade (W) and supplying a second reaction liquid (L2).

Inside a driven cylindrical housing 23 that is a cylindrical rotation member 13, a liquid to be mixed 4 is caused to become an inner circulation current f by extruded plate portions 24A-24D. Discharge ports 22A-22D formed in the cylindrical housing 21 discharge a portion of the inner circulation current f outward as outer discharge current d1-d4 by centrifugal force. At the same time, the outer portion of the liquid to be mixed 4 is sucked into suction ports 23, 30 as suction current e1-e3, h1-h4, thus mixing the liquid to be mixed 4 in the mixing tank 3.

In one embodiment, the present disclosure includes a device for manufacturing a frozen edible product, including a cylindrical tank and a dasher disposed within the cylindrical tank and configured to rotate in a direction of rotation on an axis of rotation. A non-circular cylindrical core extends within the core along the axis of rotation. The dasher includes a generally cylindrical frame concentric with the tank and having a plurality of gaps, deflectors extending radially inward relative to the axis of rotation and circumferentially in the direction of rotation from the gaps, and blades extending radially outward from the dasher.

An apparatus for promoting a mass transfer reaction having a flow distributor and a drive unit. The flow distributor has a top end surface, a bottom end surface and a peripheral surface that are axisymmetric with respect to a rotation axis. The flow distributor is configured to submerge in a fluid medium and to generate a flow of the fluid medium through at least one of the top end surface and the bottom end surface and through the peripheral surface by rotating around the rotation axis. The drive unit is configured to move the flow distributor perpendicular to the rotation axis.