| 摘要 |
A spray dryer apparatus and a method of controlling a spray dryer apparatus are disclosed. The spray dryer apparatus comprises a spray dryer chamber (1); a feed inlet (3); a feed control device (5), an air inlet, an inlet air control system and an exhaust air outlet (4) with an outlet air temperature measuring device (10). The inlet air control system (11) comprises a fan (13), an inlet air flow rate control device, an air heater (14) with an air heater control device (16), and an inlet air temperature measuring device (15) for measuring temperature of inlet air between the air heater and the spray dryer chamber. The spray dryer apparatus further comprising an inlet air moisture content measuring device, a controller for determining an inlet air temperature set value depending on the inlet air moisture content, a connection for forwarding the inlet air temperature set value to the air heater control device and a connection for forwarding an outlet temperature measured value from the outlet air temperature measuring device to the inlet air flow rate control device.
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