Alfa Laval IsoMix External Drive, Instruction Manual

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4 Installation
The instruction manual is part of the delivery – study the instructions carefully.
The machine is for permanent installation.
Make sure the motor specifications corresponds to the environment (chapter 9.3 Drive unit instructions).
Check the direction of rotation before operation (chapter 4.6 Installation, electrically).
4.1 General description
The Alfa Laval IsoMix External Drive (IMXD) is an externally driven version of the Rotary Jet Mixer which is particularly suited for
mixing applications in fluids containing particulates, such as dry-hopping of beer in medium to large tanks. The IMXD system
can also be utilized for optimization of the fermentation and cooling processes, as it will also maintain the yeast in suspension
during the fermentation process, thereby providing optimal contact between yeast and fermentable sugars, and preventing
yeast settling in the cone during fermentation.
4.2 Functioning
Rotation is powered by an external motor connected to an internal shaft. As such, there is no contact between the circulating
fluid and the gear motor, which allows the system to handle high concentrations of solid matter, such as hop particles, in
the circulating fluid.
The Alfa Laval IsoMix External Drive (IMXD) mixer is typically located low in the tank, allowing the mixer to be operated during
the filling and emptying of the tank. For the dry-hopping process, this configuration enables the mixer to maintain the hops in
homogeneous suspension during transfer from the tank to downstream centrifugation, thereby maintaining a constant load
to the centrifuge, and therefore optimal separation efficiency and performance.
4.3 Unpacking/Delivery
Always use lifting equipment when handling the drive unit.
Alfa Laval cannot be held responsible for incorrect unpacking.
Step 1
Inspect the delivery for visible transportation damages (crates and packaging) - all issues to be reported to carrier.
Step 2
Check that deliveries are according to delivery notes.
The crate contains subassemblies and parts appropriate for installation through the swing cone.
1. Spray section
2. Drive shaft
3. DN125 valve body w. flanges
4. DN80 valve section w. up-pipe and flange
5. Drive unit w. gear motor (see chapter 9.3 Drive unit instructions) and pre-programmed Frequency converter (see chapter 9.4
Frequency converter instructions)
6. Middle section (only for item numbers 9690012103 and 9690012104)
7. Blind Cap for DN80 w. O-ring (not part of installation, but for used in case of failure)
8. Bag of installation material (O-rings, gaskets and clamps)
A. 1x DN80 Clamp ring
B. 2x DN125 Clamp ring
C. 1x Flange gasket DN125
D. 1x or 2x O-ring Ø17x2 (2 for item numbers 9690012103 and 9690012104)
E. 1x or 2x O-ring Ø55.56x3.53 (2 for item numbers 9690012103 and 9690012104)
F. 1x or 2x O-ring Ø55.56x3.53 (2 for item numbers 9690012103 and 9690012104)
Nozzles (2 psc) are delivered in separate bag.
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