Mixing device including a disk-shaped mixing section including pins protruding from the disk-shaped mixing section, mixture fluid production device mixture fluid production method, and mixture fluid, oxygen-containing water and ice produced by the same
A mixing device includes a mixing section that mixes a first liquid-phase fluid with one kind or two or more kinds among a solid, a gas, and a second liquid-phase fluid different from the first liquid-phase fluid, in which the mixing section includes a supply hole for a fluid, a discharge hole for the fluid, a flow path that makes the supply hole and the discharge hole communicate with each other, and pins that protrude from the mixing section such that a fluid that includes materials to be mixed is supplied from the supply hole to the flow path, mixed by passing through the flow path with contact with the pins, and discharged from the discharge hole.