Cooling and Storing

Prolog Tank System

Hoseth Technology's Prolog tanks are in some cases an efficient and elegant alternative to Helix tanks for cooling and storage. This applies when the units are only filled and emptied 1-2 times per day and are not part of a continuous process. Furthermore, the Prolog tanks can be placed outdoors and you can therefore save large construction costs. Since the Prolog tanks are part of a closed system system, automatic washing of both the tanks and the pipe system from a central CIP is planned. 

The principle for filling and emptying the tanks makes the system independent of heights in the plant. 

When a tank is fully loaded it contains 2/3 fish and 1/3 water, circulated via a RSW or slurry ice solution. Cooling and thereby the fish quality i optimized using a sophisticated circulation pattern that also prevents squeezing of fish near the bottom of the tank. Fish are being loaded into the tank using under pressure and water circulation from a hopper tank where fish are made available. Offloading is done by using over pressure and water circulation to a dewatering unit where the fish are to be delivered.


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