The invention relates to
grain drying equipment with a rapid cooling function. The
grain drying equipment comprises a base, supports installed on the base, a
drying barrel in rotary fit with the supports through a shaft rod and a ventilation
pipe installed in an inner cavity of the
drying barrel and provided with a hollow structure. The top of the
drying barrel is provided with a feeding hole, thebottom of the drying barrel is provided with a
discharge outlet, a heating layer is integrated in the barrel wall, and a cooling
water jacket is arranged outside the barrel wall. The shaft rod is provided with shaft holes. The two ends of the ventilation
pipe stretch out of the shaft holes and penetrate out of the supports. The
pipe wall, located in the drying barrel, of the ventilation pipe is provided with ventilation holes.
Moisture in air in the drying barrel can be sucked away, external wet and
cold air is prevented from entering dried air, and grains are prevented from absorbing water and regaining
moisture; the grain
cooling speed is increased,
contact time of grains and air is effectively shortened, time conditions for production of the
moisture regaining phenomenon are greatly weakened, and finally, the
moisture regaining phenomenon is avoided during cooling, and the final drying quality of grains is ensured.