The invention relates to a
system and method for prolonging the storage period of litchis through heat treatment and relates to the technical field of litchis treatment.The
sodium nitroprusside solution is stored in a
water storage tank, when a litchis discharging frame carrying the litchis comes out of a soaking box and rotates to the position below a stopping block, the litchis discharging frame makes contact with the stopping block, and under the stopping of the stopping block, the litchis are discharged out of the soaking box; the litchi discharging frame starts to turn over, at the moment, the litchis are completely poured onto the conveying frame, the litchis roll towards the left side along the conveying frame, when the litchis pass through the spraying
pipe, the water pump sprays the
sodium nitroprusside solution through the spraying
pipe, and compared with common litchis, the litchis sprayed with the
sodium nitroprusside solution are bright in color, the aging phenomenon is delayed, and the preservation time is prolonged; when passing through the heater, the fan blows hot air generated by the heater to the litchis to heat the litchis, and at the moment, the set temperature of the heater is 150 DEG C; the heated litchis are red in color and luster and glittering and translucent in pulp, the shells and the pulp are completely separated during shelling, and the adhesion phenomenon is avoided.