Question

Which among the following is an example of a high shear mixer:

• A. Turbine mixer
• B. Jet mixer
• C. Sigma blade mixer
• D. Nauta mixer

Answer 1

The Correct Option is C

A high shear mixer is designed to generate intense mixing forces, which break down particles, droplets, or clumps in a mixture, enhancing the homogeneity of the system. The Sigma blade mixer is an example of a high shear mixer. It features two counter-rotating blades that move through the material at high speeds, creating a significant shear force that efficiently mixes the material.

- Turbine mixer: While it can create significant mixing action, it is generally used for mixing fluids or low-viscosity materials, but not specifically a high shear mixer.

 - Jet mixer: This type of mixer uses high-velocity jets of liquid to mix, but it is not considered a high shear mixer in the traditional sense. 

- Nauta mixer: This is a type of conical screw mixer used for mixing powders, but it does not generate the high shear forces typical of high shear mixers like the Sigma blade mixer.

Thus, the correct answer is C, as the Sigma blade mixer is a well-known high shear mixer used for intensive mixing operations.