Tunnel type fruit and vegetable drying chamber and fruit and vegetable drying method

Abstract

The invention provides a tunnel type fruit and vegetable drying chamber and a fruit and vegetable drying method in the technical field of drying. The tunnel type fruit and vegetable drying chamber comprises a drying chamber arranged on a base, wherein driving mechanisms used for driving a drying vehicle to enter and come out of the drying chamber are arranged on the base; the drying chamber comprises an outer box body and an inner box body; a circulating air duct is reserved between the outer box body and the inner box body; a plurality of circulating fans are arranged in the positions, at the top of the inner box body, inside the circulating air duct; heaters are arranged corresponding to the circulating fans; a plurality of circulating air holes are formed in the side wall of the inner box body; an air supplementation pipe is arranged on the inner box body to communicate with the external air; an air supplementation valve is arranged on the air supplementation pipe; a wet air discharge device is further arranged on the inner box body or the outer box body; the integral driving mechanisms are positioned inside the drying chamber; and openable and closable doors are arranged at the two ends of the drying chamber. According to the tunnel type fruit and vegetable drying chamber, the thermal loss is low, energy is saved, the fruit and vegetable drying degree is uniform, and the quality of dried fruits and vegetables is good.

Description

Technical field [0001] The invention relates to a drying room, in particular to a device for drying fruits and vegetables. Background technique [0002] The prior art dryers include belt dryers, tunnel dryers, drum dryers, etc., and tunnel dryers have a reasonable structure, low energy consumption, high output, and convenient operation. Fruits and vegetables such as red dates, shiitake mushrooms, wolfberry, and peppers are widely used. [0003] Commonly used tunnel dryers include a drying box set on the base. The base is equipped with a driving mechanism that drives the drying car in and out of the drying box. Fruits and vegetables are dried in the drying box. The hot air circulation is not good, resulting in a large temperature difference, and the temperature zone can not be separated; the drive mechanism usually adopts a chain rail structure, and the chain rail extends outside the drying box, resulting in a complete seal even if a rolling door is provided, and the heat loss is r...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the defects in the prior art, the object of the present invention is to overcome the deficiencies in the above-mentioned prior art, and provide a tunnel-type fruit and vegetable drying room, which solves the problems of large heat loss and non-circulating airflow. Small loss, energy saving, uniform drying degree of fruits and vegetables, good drying effect of fruits and vegetables, improving the quality of dried fruits and vegetables

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