Double-drying-tunnel double-cycle drying machine and drying method thereof

Abstract

The invention discloses a double-drying-tunnel double-cycle drying machine and a drying method of the double-drying-tunnel double-cycle drying machine. The double-drying-tunnel double-cycle drying machine is mainly composed of a machine head part and a machine body part. A fresh air inlet, an electric air door, a heat source, a fan, a computer control cabinet, an air mixing space and a natural moisture exhaust opening are arranged on the machine head part. The machine body part comprises a main drying region, an air duct, a feeding / discharging door and a moisture exhaust device. The double-drying-tunnel double-cycle drying machine and the drying method have the beneficial effects that the original colors of agricultural products, such as rose corollas, green grapes and bright red wolfberries, can be maintained after the agricultural products are dried, the drying is uniform, the drying time is short, the energy consumption is low, natural air inlet and natural moisture exhaust are achieved, and the color and luster of the products are guaranteed.

Description

technical field [0001] The invention relates to a dryer, in particular to a double-drying channel double-circulation dryer and a drying method thereof, belonging to the field of dryers. Background technique [0002] Whether it is fruits, vegetables, Chinese herbal medicines or aquatic products. Among them, there are differences in the state of drying and the volatility of moisture. Some materials have high moisture content, but have good moisture volatility and are easy to dry. However, the moisture content of some materials is not high. Judging from the drying state and material characteristics, the moisture is not easy to volatilize and takes a long time. Therefore, it is more critical to choose different drying methods for different materials. In the past drying methods, there is a double cycle at the top and bottom, which is similar to the advection wind, but uneven, wind turns, wind pressure decreases, wind speed decreases, and the wind is uneven. The wood drying metho...

AI Technical Summary

Problems solved by technology

Tunnel dryer refers to a single tunnel dryer. Various materials can be dried in a circular manner. There are many agricultural products suitable for drying, but when it comes to agricultural products that have been dried for more than 10-20 hours, they are also low temperature ( Below 55℃), especially to maintain its color, the tunnel dryer is not suitable

Images