Heat energy circulation system for roller fixation machine

The invention belongs to the technical field of tea manufacturing, and particularly relates to a heat energy circulation system of a roller fixation machine, which comprises a fan, a guide pipe, a filter screen and a resonance treatment system. The filter screen is arranged at an air inlet of the fan, an inlet of the guide connection pipe is communicated with an outlet of the fan, an air outlet of the guide connection pipe extends to an inner cavity of the roller, and the resonance processing system can judge abnormal resonance of the fan and the guide connection pipe and eliminate the resonance. The resonance processing system comprises a vibration monitoring module, a blockage processing module and a resonance elimination module, the vibration monitoring module is electrically connected with the blockage processing module to start the blockage processing module, and the blockage processing module is connected with the resonance elimination module to start the resonance elimination module. The abnormal reson