A METHOD FOR CONTROLLING A CONTINUOUS DRYING PROCESS

摘要

The invention relates to a method performed by a control unit (100) for controlling a process of drying free-flowing particulate material (20) in a continuous dryer (10) which comprises an inlet (14) and an outlet (16). The method comprises receiving at least a first humidity value (Min) from a first humidity sensor (15) indicative of the moisture content of at least one layer of free-flowing particulate material entered into the dryer (10) via the inlet (14); receiving at least a second humidity value (M out ) from a second humidity sensor (17) indicative of the moisture content of the at least one layer of free-flowing particulate material when exiting out of the dryer (10) via the outlet (16); and controlling the speed of the free-flowing particulate material exiting out of the dryer (10) via the outlet (16) based on the received at least first and second humidity values (M in , M out ) and an internal set point for an average outgoing moisture content (A) regulated around an ideal average moisture level (B) set by a user of the control unit (100). The invention also relates to a control unit controlling such a process and a continuous dryer comprising such a control unit.