Given the Gluconic acid solution as heat sensitive materials, the three stage falling film and forced circulation evaporation technology, can effectively reduce the evaporation temperature with anti scarring plugging ability.
15-20% diluted Gluconic acid solution first feed into the preheater by feeding pump; heated by secondary steam from evaporator;
Then, the Gluconic acid solution feed into first effect evaporator, second effect evaporator and third effect evaporator;
When the concentration of gluconic acid reaches 46-50%, the concentrated gluconic acid will be pumped into the tank via discharging pump;
The liquid level of each evaporator automatically controls the feed flow by the liquid level controller and realizes the automatic control of the process operation.
Remark: In order to reduce the energy consumption, we recommend MVR Evaporator energy saving technology. The operation cost will be much lower.