How to choose a stirring paddle for an overhead mixer?

Different paddles are used in different ways. The overhead mixer drives the paddle to stir the fluid through high-speed rotation. So how to choose different stirring paddles? What kind of stirring paddle needs to be used for what material? The following tells you:

Three-blade propeller type: Standard type stirring head, which makes the mixed medium flow with low shear force.

Four-blade propeller type: for medium and high speed use. Make the mixed medium flow axially from top to bottom to generate local shear force.

Dissolving type: medium and high speed use. Make the mixed medium flow radially from the top and bottom, and the strong turbulent flow and high shear force formed can crush the particles in the liquid.

Centrifugal type: medium and high speed use. The double blades open as the speed increases, suitable for use in narrow-mouth containers . The stirring effect is similar to that of a four-bladed propeller.

Fan type: use at medium and low speeds. Produces tangential flow, low turbulent flow, good , and is used in occasions that require gentle stirring of the medium.

Anchor type: low speed use. Tangential flow is created, with high shear rates at the edges. Make it difficult for the mixed medium to deposit on the container wall. Applied to polymer reaction and dispersion , it is a satisfactory stirring element for medium and high viscosity fluids.

In addition, different mixing containers have different heights and sizes. In addition to the style, the mixing paddle also has different sizes. Got it?