What are the advantages of using heat pump continuous grain drying equipment?

The utility model relates to a heat pump continuous grain drying device, which comprises a grain drying tower and a heat pump unit. The grain drying tower comprises a preheating section, a drying section and a cooling section from top to bottom, the grain drying tower is provided with a drying return air chamber and a Cooling Return Air Chamber. The Drying Return Air Chamber is connected with the air outlet of the drying section, and the Cooling Return Air Chamber is connected with the air outlet of the cooling section, a plurality of heat pump units are arranged in series between the air outlet of the Drying Return Air Chamber and the hot air inlet. The working mode of several heat pump units in series effectively improves the working efficiency of the drying device, reduces energy consumption, and the drying medium is mainly a closed cycle, which makes use of the waste heat and prevents the discharge into the atmosphere from causing environmental pollution.