Natural air dryer of grains

Abstract

The invention relates to a grain storage device, in particular to a natural air dryer of grains, which is characterized by comprising a thin and high air drying tower (1), wherein the periphery of the air drying tower (1) is closed by a housing, openings are formed at the upper part and the lower part, one or more vertical grain cylinders (2) surrounded by sieve meshes are arranged in the air drying tower (1), gap between each adjacent two grain cylinders (2) is an air passage (3), a plurality of air deflectors (7) are arranged inside the air passages (3) and outside the grain cylinders, discharge devices are arranged at the lower ends of the grain cylinders (2), and a solar heating device is assembled. Uniform high-speed uplink airflow is formed in the tower under the action of wind difference between the upper part and the lower part of the air drying tower, thereby fully draying the grains. Simultaneously, the grains in the tower fall down continuously and sequentially, and the airdrying conditions are relatively consistent, thereby ensuring the uniform drying. Therefore, the natural air dryer can not only be applicable to large-scale distributed operation, but also meet the needs on large-scale centralized operation; furthermore, the natural air dryer is characterized by saving coal, saving electricity and realizing low cost and high efficiency.

Description

technical field [0001] The invention relates to a grain storage device, namely a natural grain drying machine. Background technique [0002] Corn and other grains must be dehydrated and dried before storage to reach a safe water content, so as to prevent mildew and deterioration during storage. In the past, grain drying was mainly done by natural air drying, which took up a lot of space, took a long time, caused more losses, and the drying quality was uneven, which made it difficult to meet the needs of centralized grain storage and transportation. In order to solve this problem, in recent years, people have used grain drying towers to dehydrate grain and achieved good results. However, the grain drying tower needs to use coal or electricity as the heat source, which consumes a lot of energy and is a high-carbon operation. In order to save coal and electricity resources, according to the current research trends, someone has developed a kind of elevated natural air-drying e...

AI Technical Summary

Problems solved by technology

Although this method does not require coal and electricity resources, the operation cycle is long, and it usually takes 10-15 days to complete one operation. The scope of application is very limited, and it can only be used by farmers scatteredly. It is not suitable for large-scale centralized grain drying operations.

In particular, the operation of this kind of equipment is intermittent, and it can be installed and unloaded once in a cycle, and cannot be carried out continuously.

After the grain is loaded, the position of the grain remains basically unchanged. Due to the large difference in wind force at each position, the degree of drying varies, so the uniformity of drying is poor.

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