A high-efficiency hot air tunnel circulation fruit and vegetable dryer

Abstract

The invention discloses a high-efficiency hot air tunnel circulating fruit and vegetable dryer, which comprises a frame, a workbench, a conveying system, a moisture outlet, a blowing unit, a motor, a circulating air duct, an air equalizer, an air volume regulating system, and a conveying The system is horizontally and flexibly connected to the upper part of the internal cavity of the frame and workbench, the blowing units are evenly and equidistantly distributed on the lower surface of the conveying system, and the circulating air duct is horizontally fixedly connected to the bottom of the internal cavity of the frame and workbench , the air volume adjustment system is movably connected to the middle and lower parts of the internal cavity of the frame and the workbench. The present invention can perform a certain humidity on the fruits and vegetables that are about to leave the equipment conveying system during the drying operation of the hot air tunnel for the fruits and vegetables. Induction operation and a certain amount of air volume adjustment when the humidity is too high ensure that the drying effect can meet expectations, and also ensure the smooth progress of subsequent fruit and vegetable processing, effectively improving the practical performance of the equipment.

Description

technical field [0001] The invention relates to a high-efficiency hot air tunnel circulation fruit and vegetable dryer, which belongs to the technical field of fruit and vegetable dryer manufacturing. Background technique [0002] At present, the drying method used in the processing of fruits and vegetables and agricultural products is usually boiler steam drying. This drying method is easy to cause the boiler temperature to be unstable because of the unstable air pressure in the boiler. To meet the constant temperature, it often needs to rely on manual operation. , and the hot and humid air in the drying room is difficult to deal with and cannot be recycled, which will affect the drying quality and drying time. Traditional boiler steam drying uses electric heating or combustion heating, which wastes a lot of energy. Some fruits and vegetables are generally dried directly in the sun, which is greatly affected by the weather and is easy to deteriorate; using combustion to he...

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Problems solved by technology

[0004] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a highly efficient hot air tunnel circulation fruit and vegetable dryer to solve the problem of low cost and low energy consumption in the process of hot air tunnel circulation drying of fruits and vegetables in the prior art. It is low in size and small in size, but it cannot perform a certain humidity sensing operation on the fruits and vegetables that are about to leave the equipment conveying system and perform a certain air volume adjustment process when the humidity is too high, which may cause the drying effect to fail to meet expectations. The problem of insufficient practical performance

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