Heat energy recycling structure for distillation system

The invention is applicable to the technical field of molecular distillation, and provides a heat energy recycling structure for a distillation system, which comprises molecular distillation equipment and a heavy component buffer tank, a heat exchange tank is arranged at the bottom of the molecular distillation equipment; the bottom of the molecular distillation equipment is communicated with a discharge pipe; fine sand is contained in the heat exchange tank; a plurality of sand conveying pieces are uniformly and rotatably arranged at the top in the heat exchange tank in a penetrating manner; heat exchange pieces are fixed at the end parts of the supporting columns; the molecular distillation equipment is connected with the heavy component buffer tank through a heat exchange piece; a feeding pipe is arranged on the molecular distillation equipment; a discharging coil pipe is fixed between the two ends of each fixing plate. According to the device, through the disc-shaped design of the discharging coil pipes a