DDGS output requires installation of a drying unit, in which cake will be dried up to reaching moisture content of 10-12%. The drying process requires 3.0MW of heat. Hot air serves as a drying agent. Air is heated by hot-air generators. Installation of three hot-air generators is meant to be in the following sequence:
Saturated steam under pressure of 6bar is supplied to the inbuilt heat exchangers of the unit in order to maintain high temperature in the housing of the drying unit. Steam under the same pressure is fed to the drying unit for steam smothering provision. Thermal capacity of hot-air generators are listed in Table 7.3.1.
