Static / Motionless Mixers

Static or motionless mixers are utilized in many processes to enhance the performance. The gain in performance in most cases out weighs the cost for the mixer and the permanent pressure drop associated with it. The FlowTack mixers are a proprietary product with a minimal pressure drop.

Static mixers are used to equalize the flow, temperature or concentration distributions in streaming media or to mix two or more different flow streams. Static mixing elements are geometrically defined devices installed in the stream of one or more media. The media, gases or liquids (perhaps with solid particles), are mixed by the fluid dynamics generated by the streaming media and the motionless static mixing elements.

There are two basic types of flow: turbulent and laminar. In turbulent flow (Re>2300) the liquid particles move in an irregular flow pattern, resulting in strong turbulence. At laminar flow (Re<50) the liquid particles move in layers along parallel lines. The Reynolds number is a dimensionless characteristic and indicates the relationship of inertia to tenacity strength.

The basic operations for static mixers include:

- Mixing of gases
- Mixing of liquid
- Mixing of liquids with high viscosity difference
- Dispersion of insoluble liquids
- Mixing of liquids which are only partially soluble
- Mixing of particles, liquids and gases with gases and liquids

Range of Application

• Chemical industry
• Burner
• Food processing
• Power industry
• Waste to energy plants
• Air pollution control systems
• Extrusion
• Water treatment plants
• Polymerization