Alfa Laval IsoMix External Drive, Instruction Manual

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5 Operation
Study the instructions carefully and pay special attention to warnings! Always check the machine before operation. Alfa Laval
recommends a soft starter for the machine to reduce the load on tank and machine. For operation instructions from motor
supplier see chapter 9.3 Drive unit instructions.
5.5 Cleaning
All position numbers and item numbers refer to the drawings shown and specified in chapter 8.1 IMXD without middle section
and 8.2 IMXD with middle section.
General information
The Alfa Laval IsoMix External Drive (IMXD) does not require a special cleaning procedure but the process should be integrated
in the usual tank cleaning concept. However, caustic cleaning is always recommended.
The Alfa Laval IsoMix External Drive (IMXD) must not be run at temperatures above 90° C.
Ensure that all surfaces in contact with product are totally clean so product is not contaminated and that the machine itself is
not exposed to corrosion.
Pay special attention to:
-
Surfaces around sealing and bushings.
- Surfaces around weldings.
- Surface at ball bearings.
Cleaning example
- CIP fluids to be performed in the same loop and flow direction as for operation. I.e. CIP liquid enters the DN80 valve section
(19) side port and exits through the DN125 valve body (25) side port.
- Prerinse with cold water for approximately 3-5 minutes.
- The caustic cleaning step should be made with caustic 30 - 45 minutes.
- For each step of the tank CIP, fluid should be built up into the cone and circulated through the Alfa Laval IsoMix External
Drive (IMXD) for approximately 5 minutes at a flow corresponding to 3.5-4 bar pressure at the IMXD inlet.
- The cleaning should be made as soon as possible after emptying the tank, while the inside surfaces are still wet.
- Final-rinse with water for 5 minutes or until last rinsing water is free from chemicals.
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