mixing matters blog

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Mixing matters blog - Covering any topic involving industrial mixers and utility mixers

Dynaflow High Efficiency Impeller Flow Pattern
Mixer Configuration

Selecting A Waste Water Mixer for Wastewater Treatment – Part 2

Selecting A Waste Water Mixer for Wastewater Treatment – Part 2 Waste Water Mixers for Optimal Flash Mixing & Flocculation In part 1 of this series on wastewater and water treatment mixers, we discussed how to select a waste water mixer for chemical preparation. In this post, we’ll show you how to select a Waste Water Mixer for flash mixing and flocculation. Done in a Flash? Aggressive Agitation + Speed for Flash Mixing Flash mixing is used to evenly distribute coagulating chemicals in water, allowing micro-flocs to form. As the precursor to flocculation, flash mixing increases the efficiency of flocculation and reduces chemical wastage. Because the components need to be quickly and evenly dispersed, this process is all about brute

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December 2, 2013 12 Comments
Polymer Activation
Industrial Mixing

Mixing 101: 4 Factors for Configuring Your Fluid Mixer

Mixing 101: 4 Factors for Configuring Your Fluid Mixer Considering Mixer Configuration If you’re in an industry that includes fluid mixing in its processes, you probably know that finding the right fluid mixer for your needs is critical to maintaining quality control, reducing costs, and optimizing efficiency. The key here is to engineer a fluid mixer that addresses the specific needs of your process. When configuring a mixer for your process, your mixing engineer should consider the following 4 factors: Factor #1 – Tank Type & Volume This determines the amount of fluid your tank can hold. This is important because it will determine the size and position of the fluid mixer and its mounting. Factor #2 – Viscosity This

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November 15, 2013 No Comments
impeller flow analysis
Industrial Mixing

Mixing 101: Flow Patterns & Impellers

Mixing 101: Flow Patterns & Impellers Mixing Flow Patterns & Impeller Types In our article on 4 Impeller Types and Their Applications, we provided an overview on the most common types of impellers used in industrial mixing. Now we’ll go into more detail about each impeller type and their influences on the mixing process. Our focus on impellers is due to the fact that they are the part of the mixer that does the actual mixing: as they rotate they create fluid flow. These flow patterns are the primary considerations when designing a mixer because creating the right flow pattern is critical to achieving the desired result. The most common flow patterns in mixing are axial (down and up) and

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September 20, 2013 25 Comments
salad dressing
Industrial Mixing

Identifying Mixing Opportunities

Identifying Mixing Opportunities Mixing, Like Oil & Vinegar… To identify potential mixer applications for liquid products, consider the composition of oil and vinegar salad dressing, as it depicts the two greatest challenges addressed by mixing: separation of non-miscible fluids and the settling of solids. Settling & Separation Any liquid that separates or settles over time is an opportunity for a mixer application. For these liquids, which are known as non-homogeneous, maintaining their uniformity is critical to maintaining their quality. If a product isn’t brought into uniformity in production, or just before it’s used, the quality of that product is lost. That’s why oil and vinegar salad dressings need to be shaken before consumption. Without shaking, you’d have to eat the

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June 13, 2013 No Comments
tank design baffles and no baffles
Industrial Mixing

Mixing 101: Baffled by Baffles?

Mixing 101: Baffled by Baffles? How Baffle Configuration Can Optimize Industrial Mixing In our previous posting on configuring your mixer, we learned that the tank type and volume, viscosity, specific gravity and the process are key factors the mixing process. In this article, we dive into how baffle configuration and mixer mounting can prevent the undesirable flow pattern of swirling. Let’s look at a common tank configuration: an un-baffled cylindrical tank. If a mixer is center-mounted in this tank, what we see is a very inefficient flow pattern: the tangential velocities coming from the impeller cause the entire fluid mass to spin (Fig. 1).  Basically, the entire fluid (and its solids) moves like a merry-go-round. In solid suspension applications, the solid

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October 19, 2012 6 Comments
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