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Supersonic nozzles keep this spray-dryer filter clean

| By Chemical Engineering

SaniCIP is a system of CIP bag filters for spray dryers that use reverse-jet pulsing technology to make sure that powder is removed from every part of the bag. Now, the SaniCIP filters have been improved to achieve even higher performance and longer life. Among the new features are the following: the diameter of the cylinders has been enlarged to reduce the wear rate in use due to sand blasting and rubbing; the air inlet has been redesigned tangentially to reduce risk of powder deposits forming; supersonic nozzles are used for reverse-jet pulsing instead of reverse-jet nozzles, which reduces compressed air and maintenance requirements; the clean-air plenum above the nozzles has been redesigned to be easier to clean in place; top covers now weigh less for easier removal; and the system now includes new sanitary explosion vent panels. — GEA Process Engineering, Søborg, Denmark

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