Spray Dryer

The spray dryer converts high-concentration milk from the outlet of the Multiple Effect Evaporator (MEE) into milk powder. This is achieved by atomising the milk into fine droplets and exposing them to hot air at approximately 175°C. Steam is used to heat the air to the required temperature.

Across many plants, multiple radiator coils have a single steam trap to evacuate condensate. As the temperature of air progressively increases along the air flow direction, the rate of heat transfer and condensate formation gradually decreases. This hampers effective condensate evacuation from the radiator coils. Consequently, air temperatures deviate against the required levels, impacting the drying process. Additionally, condensate accumulation within the radiator coils causes water hammer, damaging the coils and resulting in steam loss.