▎ 摘　　要

NOVELTY - A heating control device of multi-layer tea baking machine, comprising a PLC controller, a plurality of graphene electric heating plate and several temperature sensors, the multi-layer tea baking machine is provided with at least two annular chain plate conveyor, each annular chain plate conveyor forms a heating cavity, each heating cavity is arranged with several graphene electric heating plates at intervals, the heating temperature of each graphene electric heating plate corresponding to the upper layer chain plate and the lower layer chain plate is the same, each graphene electric heating plate is correspondingly provided with a temperature sensor, the graphene electric heating plate and temperature sensor respectively electrically connected with the PLC controller. the heating control device, each annular chain plate conveyor is formed with an independent heating cavity, each heating cavity is provided with several graphene electric heating plates, each graphene electric heating plate is controlled by the PLC controller, it can realize providing different heating temperature for tea at different positions of each annular chain plate conveyor, It is suitable for the technical requirement of tea baking temperature change.