PET Food Processing - September 2020 - 39

reduce the ability for fines to collect and harbor bacterial
growth. The cooler has been removed from the interior
of the dryer enclosure and deployed as an externally extended cooler to guard against the bacterial problems associated with condensation and fines buildup.
Another challenge for processors is the nature of the
materials used in pet food and treat production.
"The biggest challenge comes from the highly viscous
nature of meat slurries, pet food, and similar materials,"
said Matt Hale, international sales and marketing direc-

tor, HRS Heat Exchangers, Atlanta, Ga. "This not only
makes them difficult to move through conventional tubular heat exchangers, but results in high levels of fouling
on the heat exchange surface which reduces the efficiency
of the cooling process. However, at the same time, pet
food ingredients such as meat products and slurries often need delicate handling to maintain texture and quality. The HRS R Series uses a patented rotary scraper bar
that can reach speeds up to 300 rpm, providing high levels
of shear and mixing at the heat transfer surface, which

Rotating scrapedsurface heat exchangers
efficiently handle the
highly viscous materials
often found in pet food
and treat applications.
HRS Heat Exchangers

www.petfoodprocessing.net | September 2020 | PET FOOD PROCESSING

39



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PET Food Processing - September 2020

Table of Contents for the Digital Edition of PET Food Processing - September 2020

PET Food Processing - September 2020 - 1
PET Food Processing - September 2020 - 1
PET Food Processing - September 2020 - 2
PET Food Processing - September 2020 - 3
PET Food Processing - September 2020 - 4
PET Food Processing - September 2020 - 5
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