Static mixers are used to mix liquids and gases. Unlike dynamics, they are devoid of moving parts. This ensures the most excellent reliability of mixing devices. Also reduces their cost and simplifies installation.
When using stationary mixers, regular maintenance of equipment with an inspection of the inside is excluded. The need for repair is rare since the mixing devices are made of corrosion-resistant materials.
To get a homogeneous mix within the permitted pressure drop or available pipe length. One must choose from among the many different static mixer designs. The use of an Interfacial Surface Generator static mixer is advised for viscous applications with space restrictions but no greatest pressure drop.
Before choosing the static mixer that will best meet your conditioning needs. Observe the following information to understand this device works, which will allow you to find the suitable device for your needs.
Designs for static mixers
A static mixer is a device placed inside a housing or pipeline with the purpose of dividing, recombining, spreading, and swirling. Or forming layers in the fluid streams as they pass through the mixer. Based on flow rate, viscosity, density, the proportion of mixed components, and pipe size, mixing performance can be calculated.
There are several designs that often include plates or baffles that are angled precisely to direct flow, produce turbulence, and achieve mixing.
Static mixers are notorious in the process industry for their use in mixing, stirring and related tasks.However, very often, stirred tanks are instead used to perform such tasks because they are there. This behavior could change as the advantages of static mixers over stirred vessels become more understood. And with the use of micro-mixers it will become increasingly popular.
Design guidelines presented here will-help process engineers make the best selection for various fluid mixing applications. And will help explain how the scale-up of static mixers works. The potential of micromixers and actual examples of their use at the production scale today are also presented.
Considerations to make when choosing the best static pipe mixer
Let’s go on to the main subject, which is how to choose the best static mixer. From the perspective of the mixing outcome, choosing the appropriate static mixer is crucial. Of course, selecting a static mixer isn’t particularly complicated. But, it necessitates that you assess the mixer against a few essential criteria and then choose. Let’s examine what those elements are.
1. The Dispensing Technique
When choosing a static mixer, it’s important to think about how you want to disburse your material. Your choice of material will influence the mixer you choose based on the nozzle’s pressure limit, the anticipated flow rate, and the allowable back pressure.
2. The material’s viscosity and the desired flow rate
To decide the element diameter that will be used, you must also know the viscosity of the item that needs to be mixed.
For a correct mix, the diameter must be smaller, the thinner the material. To get the necessary level of homogeneous mixture, a thicker material would need a wider diameter. The next can be used to figure out the mixer’s diameter range.
3. The Mixer Add-On
You can choose the connection type and mixer inlet to utilize based on these criteria. The following are the three main connection types:
- These mixers utilize a simple twist-and-lock device known as a bayonet. They work well with 9–50 mL cartridges.
- Bell: There is a wide variety of round, square, and rotary connections available with these mixers.
- Bell mixers should be used with 200mL or bigger cartridges, according to the integral nut (threaded).
4. S-Cube offers high-quality and effective static mixers
One of the best producers of a wide selection of practical static mixers is S-Cube. S-Cube is a group of enthusiastic, driven individuals with years of combined experience in the mass transfer technology field.
To fulfill the demands of different industries for liquid mixing, the firm makes static mixers. Pharmaceuticals, power plants, energy, the processing of natural gas, and pollution prevention. And the processing of minerals and ore, the pre-treatment of feed through reverse osmosis, etc., are all included.
How does the static mixer work?
There are different types of static mixers adapted to the needs of businesses, whether large or small. In all cases, the energy produced by this device is extracted from the fluid circulating in the mixers. It is shown that in laminar flow, the behavior of the flow is more complex than expected.
Mixing is achieved by specially designed flow arrangements, by cutting and twisting, by displacement and deformation, or by separation and expansion. In turbulent flow, additional effects occur.
Several types are compared in terms of the length required for a certain degree of mixing. Pressure drop versus flow through the tube without mixing elements, etc. Many typical applications should be considered when choosing your static mixer.
Modifications intended to divide and redistribute fluid streams or trigger the formation of specific flow structures by manipulating natural flow forces to intensify the transverse displacement of particles. Many models of static mixers have been proposed at different scales. But only a few models are used in industry, and comparative performance studies remain few.
In general, we can use two different criteria to judge the efficiency of mixers for highly viscous liquids when evaluating them.The first is the energy consumption (measured, for example, by the dimensionless pressure drop). And the 2nd one is the sizeless distance.
So far, only a few studies comparing the performance of static mixers have been reported. During the last decade, we have developed in our group an efficient and accurate evaluation tool to analyze mixing in prototype flows. And later also in static and dynamic mixers, called the mapping method.
Here is some information to know about static mixers as well as points related to their operation. Thus, if you wish to obtain some, do not hesitate to check these few points, or better still. Entrust the packaging of your liquid products to specialists who have the most efficient static mixers.
