Two sugar factories with a processing capacity of 6000 t/d of beet and falling film type evaporators in all effects but differing in the lay-out of the evaporator station were compared. A five-effect station with serial juice flow from effect 1 to 5 was compared with a five-effect station, where the thin juice is fed into the 4th effect (pre-evaporator), and then after additional heating to the 1st effect. For the two sugar factories identical process parameters and identical technological equipment were assumed. It was found that the use of a pre-evaporator gives significant . . .
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