Air bag, automatic airing device and airing method

Abstract

The invention relates to the technical field of drying devices and discloses an air bag, an automatic airing device and an airing method. A plurality of air cavities are arranged in the air bag and are sequentially adjacent, every two adjacent air cavities do not communicate with each other, spaced air cavities communicate with each other through an air channel, and therefore a first air cavity set and a second air cavity set disconnected to the first air cavity set are formed and are respectively provided with an airflow connection port. According to the air bag, the automatic airing device and the airing method, objects to be aired are aired through the combined effect of heating by the warm air bag at the lower part and heating by sun irradiation at the upper part, the evaporation speed of water is high, the airing effect is good, and subsequent processing or storing of the objects to be aired is convenient.

Description

technical field [0001] The invention relates to the technical field of drying equipment, and more particularly relates to an airbag, automatic drying equipment and a drying method. Background technique [0002] Drying of agricultural products is one of the key links and important steps in the post-production processing of agricultural products. Through drying treatment, the moisture content of agricultural products can meet the requirements required for processing or storage processes, and the quality, storability and processability of agricultural products can be guaranteed. [0003] At present, there are two main methods of drying agricultural products: mechanized drying and natural drying. [0004] Compared with traditional artificial natural drying, mechanized drying can greatly improve work efficiency, effectively avoid secondary pollution such as soil, sand, debris and vehicle exhaust particles, and has the characteristics of not being affected by natural environments ...

AI Technical Summary

Problems solved by technology

Drying technology in many places in China is relatively backward, and coal, diesel, kerosene, natural gas, and straw are mainly used as fuel, and indirect heating is adopted, and the energy utilization rate is low. Although a large number of researches have used clean and renewable energy such as electricity and biomass , but it is still difficult to significantly reduce the cost

[0006] 2) The one-time investment of drying machinery is large, and the investment recovery period is long

Due to different crop varieties, the water content is not the same, the moisture is uneven, and drying is difficult, especially in the south of China, where high temperature, high humidity, and rainy, the temperature and humidity vary greatly during the day, and different fields are harvested at different times. The moisture of agricultural products varies greatly, which have higher requirements on the performance and quality of drying machinery, which virtually increases the cost of use

[0008] 4) The processing workload of drying mechanical waste gas is large

[0012] 2) High labor intensity

[0013] 3) High site requirements

However, with the development of the economy, most of the traditional drying dams and threshing yards in China have been used for other purposes or turned into land for building houses. The special drying yards are gradually disappearing, replaced by road drying, Roof drying and other methods, for large growers, the area of ​​the roof drying field is far from meeting the demand for drying agricultural products during the peak harvest period. Therefore, road drying has become a common phenomenon that can be seen everywhere in China's busy farming season, and it is also a helpless choice for farmers.

[0014] However, there are many safety hazards in the road drying method:

[0015] a) There are many hidden dangers to traffic safety

Occupying roads for drying affects traffic order, hinders the passage of motor vehicles and pedestrians, and is prone to friction and collision, threatening the personal safety of passing vehicles, pedestrians and drying yard operators

[0016] b) Increased risk of loss

Due to various reasons such as vehicle rolling, entrainment, wind blowing, and uneven ground, the loss of agricultural products during drying will increase

[0017] c) The risk of secondary pollution increases and the quality of agricultural products decreases

Dust is unavoidable on the road surface, coupled with the harmful gas emitted by vehicles, the agricultural products are mixed with a large amount of dust, tail gas emission particles, soil, sand and other sundries, causing secondary pollution to agricultural products. At the same time, the rolling of vehicles causes agricultural products broken, deteriorating in quality

In addition, if the drying road is an asphalt road, carcinogens such as benzene can be volatilized in the asphalt under the sun exposure, and the agricultural products that have been spread on the asphalt road will greatly threaten human health.

[0018] In the existing literature, some researchers have also been retrieved to develop solar drying technology, trying to develop solar collectors such as plastic film type, inflatable pipeline type, flat plate type, and rock heat storage type to provide heat sources for drying machinery, but at present The effect of this technology in terms of drying efficiency and equipment investment cost is still unsatisfactory

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