A non-contact air-heat dehumidification device for drying crop seeds

Abstract

The invention discloses a non-contact air-heat dehumidification device for drying crop seeds, which belongs to the technical field of dehumidification and drying of crop seeds. A plurality of drying rollers are rotated and embedded on the inner wall around the dehumidification cavity where the crop seeds are placed, and are used for the rotation of the drying rollers. In the installed installation chamber, the drying roller is equipped with a symmetrical arc-shaped moisture-absorbing layer on both sides. The arc-shaped moisture-absorbing layer inside the dehumidification chamber is used to absorb moisture and dehumidify the crop seeds. When the arc-shaped moisture-absorbing layer absorbs moisture After the tide is too high, the adsorption saturation trigger body inside the drying roller will also be triggered due to adsorption expansion, and the controller controls the rotating motor to drive the drying roller to rotate, so as to realize the exchange of two symmetrical arc-shaped moisture-absorbing layers, and exchange them to the installation The arc-shaped moisture-absorbing layer in the cavity is dried by wind and heat, and with this moisture-absorbing and drying cycle, the dry arc-shaped moisture-absorbing layer is used to dehumidify the crop seeds, effectively avoiding the direct wind and heat contact of the crop seeds to cause excessive drying and drying Problems of varying degrees occur.

Description

technical field [0001] The invention relates to the field of dehumidification and drying of crop seeds, in particular to a non-contact air-heat dehumidification device for drying crop seeds. Background technique [0002] The quality of seed preservation is mainly determined by the water content of the seeds. When the seeds are dried, the water content is low. If the water content can be guaranteed not to rise during storage (within a certain temperature and humidity range), it is safer, because the water content rises to After a certain degree, the seeds are easy to decay, and it is not easy to save at this time. Therefore, seeds need to be dehumidified before storage. [0003] Crop seeds contain two kinds of water, bound water and free water. Dehumidification treatment refers to the removal of free water in the seed body. The purpose of removing free water is to reduce the energy consumed by aerobic respiration so as to maintain the quality of the seeds and avoid seed dama...

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Problems solved by technology

[0004] In the prior art, it is often dried by the sun or by a dryer. For crop seeds with large yields, natural drying will reduce work efficiency. Therefore, dryers are often used for air-heat dehumidification treatment. There are certain defects in the drying operation. When the temperature is too high or the temperature is not uniform, it will cause local over-drying of the seeds and different dehumidification effects of the seeds, which is not conducive to the subsequent storage of the seeds.

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