To prepare syrup, sugar is dissolved in a specific amount of hot water to create a syrup with a predetermined concentration. Afterward, the syrup is preserved through heat treatment and sterilization if required, followed by filtration and cooling. Sugar can be added directly into the storage tank through the manhole or by utilizing a circulating pump or spiral conveyor.
The filtration of syrup can be bag filtration, plate-frame diatomite filtration and vertical (or disc) diatomite filtration. In the case of sulfide sugar, activated carbon can be added to the syrup prior to diatomite filtration to remove color.
Syrup cooling can be achieved through the heat recovery design, that is, using a plate heat exchanger where the product water is initially directed to the first stage to cool the syrup. The cooled syrup then enters the hot water tank, resulting in the reduction of syrup temperature and an increase in product water temperature to minimize energy consumption.
