... -controlled, man-machine conversation interface operation2)Efficiency, energy saving, environmental protection, and drying grain quality ... flat belt conveyor, pneumatic gate, thermostats, air compressors, hot air systems, cooling systems, dust removal system, ... environmentNo air pollutionSevere air pollutionOperatorClass Single 1 workerClass Single 4 workers corn dryer machineJL-NOOT(energy-efficient)