Hybrid cold and hot air combined drying equipment

摘要

The present invention relates to a hybrid cold and hot air drying device, wherein a dehumidifier and a heat exchanger are installed at the rear end of the dehumidifier, a steam hot air fan is installed at the rear end of the heat exchanger, a cooling cooler is installed at the rear end of the steam hot air fan, and discharged from the cooling cooler. By forming a drying chamber receiving air, forming a first damper between the drying chamber and the dehumidifier, and forming a second damper between the drying chamber and the heat exchanger, the air from which moisture has been removed from the dehumidifier is transferred to the heat exchanger, steam hot air fan, and cooling cooler. After being cooled or heated to a predetermined temperature while passing sequentially, it is supplied into the drying room to dry the agricultural product with hot or cold heat, but the hot or cold air in the drying room is discharged after heating the heat exchanger through the first or second damper. Or resupplied to a dehumidifier. According to the present invention, by controlling the operation of a heat exchanger, a steam hot air fan, and a cooling cooler, hot air can be supplied into the drying room or cold air can be selectively supplied, and various kinds of agricultural products are dried in the drying room by selective supply of the hot air or cold air. In particular, some of the air discharged from the drying room is resupplied into the drying room, while some air is discharged to the outside, and the air pollution concentration in the drying room is re-supplied to reduce the air pollution concentration in the drying room. The resulting air can be rubbed against the agricultural products, while drying the agricultural products to keep the agricultural products in a clean state.