Satic Mixer, static blender, static mixing

A static mixer is a precision engineered device forthe continuous mixing of fluid materials. Normally the fluids to bemixed are liquid, but static mixers can also be used to mix gas streams,disperse gas into liquid or blend immiscible liquids. The energy needed formixing comes from a loss in pressure as fluids flow through the static mixer.One design of static mixer is the plate-type mixer and the other deviceconsists of mixer elements contained in a cylindrical (tube) or squaredhousing. Mixer size can vary from about 6 mm to 6 meters diameter. Typicalconstruction materials for static mixer components included stainlesssteel, polypropylene, Teflon, PVDF, PVC, CPVC and polyacetal.


Design

In the platetype design mixing is accomplished through intense turbulence in theflow.
In thehoused-elements design the static mixer elements consist of a seriesof baffles made of metal or a variety of plastics.Similarly, the mixer housing can be made of metal or plastic. Thehoused-elements design incorporates a method for delivering two streams offluids into the static mixer. As the streams move through the mixer, thenon-moving elements continuously blend the materials. Complete mixing dependson many variables including the fluids' properties, tube inner diameter, numberof elements and their design. The housed-elements mixer's fixed,typically helical elements can simultaneously produce patterns offlow division and radial mixing:
Flow division: In laminar flow, a processed material divides atthe leading edge of each element of the mixer and follows the channels createdby the element shape. At each succeeding element, the two channels are furtherdivided, resulting in an exponential increase in stratification. The number ofstriations produced is 2ⁿ where 'n' is the number ofelements in the mixer.
Radial mixing: In either turbulent flow or laminar flow, rotationalcirculation of a processed material around its own hydraulic center in eachchannel of the mixer causes radial mixing of the material. Processed material isintermixed to reduce or eliminate radial gradients in temperature, velocity andmaterial composition.

Applications


Today, static mixers are used for a widerange of different applications in many different market segments. Acommon application is mixing two-component adhesives (e.g., epoxy) andsealants. Other applications include wastewater treatment andchemical processing. Static mixers can be used in the refinery andoil and gas markets as well, for example in bitumen processing orfor desalting crude oil. In polymer production, static mixers can be used tofacilitate polymerization reactions or for the admixing of liquid additives.










We are offering sv, sk, sl, sx, sh,sf-static mixing devices