Rotary Jet Mixer
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The Alfa Laval Rotary Jet Mixer effectively handles liquid mixing, gas dispersion, powder mixing, and tank cleaning while reducing mixing time, energy consumption and costs. Patented technology based on proven Rotary Jet Head technology, it provides quick, efficient and uniform mixing without any batch rotation or the use of baffles. It also ensures greater process flexibility, making it easy to switch to new product formulations with diverse viscosities, densities and volumes.
Effective mixing, reduced mixing time in multiple applications
- Fast, effective liquid mixing performance in tanks
- Efficient gas and powder dispersion
- Can be used as tank cleaning machine
- Unmatched, cost-effective mixing performance
- Simplified, hygienic design, modest investment
The Alfa Laval Rotary Jet Mixer is designed for liquid mixing, gas dispersion (aeration, deaeration, carbonation), and powder mixing in process and storage vessels across the dairy, food, beverage, brewery, healthcare, home and personal care and biotechnology industries. When the tank is empty, the Rotary Jet Mixer also acts as a superb Cleaning-in-Place (CIP) system, saving water, cleaning media and energy compared to using a spray ball CIP system.
How does the Rotary Jet Mixer work
Operating principle
The Rotary jet mixers are positioned under the liquid surface. Liquid is fed through the nozzles of the Rotary Jet Mixer. To achieve optimal circulation within the tank, the system uses a closed circulation loop. Two or four nozzles rotate around both the horizontal and vertical axes. This double rotation enables the jets to reach the entire tank volume, providing fast, efficient mixing of the injected liquid, gas or powder. For faster mixing requirements, several Rotary jet mixers can be installed in series.
Tank cleaning included
The Rotary Jet Mixer does double duty. After completion of the mixing process, the mixer’s jet nozzles can be used for spraying cleaning liquids in the tank to effectively clean tank surfaces.
Skid mounted unit
Three different pre-engineered Skid Mounted Pump Units are available to supplement the portfolio of Rotary Jet Mixers. The three units available comes with 7.5 kW, 11 kW, or 15 kW pumps. The unit is mounted on a stainless steel frame and consists of the following Alfa Laval components, an energy-efficient LKH centrifugal pump, a variable frequency drive, piping, two pressure gauges, manual LKB-2 butterfly valves at the inlet and at the outlet and a LKB-2 drain valve.
Application examples:
Beer fermentation
The Rotary Jet Mixer is used for mixing in beer fermenters. Applying forced mixing in beer fermenters reduces processing times by up to 30%. As a result fermentation capacity is maximised and reduction in operational costs is achieved.
Mixing beverages
Applying Rotary jet mixers optimize production processes in the beverage industry. The mixers are used for different beverage applications such as mixing beverages containing fruit pulp, dissolving flavours, aspartame and other powders and for tank cleaning – cleaning in place (CIP). A single mixer can be used for several different operations in the same tank for instance for liquid mixing, deaeration, carbonation and dissolving of powders.
Deaeration
The Rotary Jet Mixer can be used for effective deaeration. Minimizing the oxygen content in liquid food products like soft drinks, beer and edible oil leads to extended shelf life and improved taste stability.
Product range
The Rotary Jet Mixers are available in four different models (IM 10, IM 15, IM 20, IM 25). They are designed for tank volumes between 100 and 800,000 liters in size and capable of handling re-circulation flow rates up to 90 m3/h.