Small grain drying machine capable of being used in both continuous mode and cycling mode

Abstract

A small grain drying machine capable of being used in both a continuous mode and a cycling mode is characterized by comprising a drying tower, a drying machine exhaust air channel, an upper air inlet channel and a lower air inlet channel, wherein the top of the drying tower is provided with a material inlet, the bottom of the drying tower is provided with a material outlet, and the drying tower is of an upright-barrel-type structure; the drying machine exhaust air channel is arranged on one side of the drying tower and communicated with atmosphere; the upper air inlet channel is located on the middle upper portion of the drying tower and connected with a hot air fan; the lower air inlet channel is located on the middle lower portion of the drying tower and connected with a cold-hot air fan. The air inlet of the hot air fan is connected with a hot air source through a pipeline. The air inlet of the cold-hot air fan is connected with the hot air source and a natural air source through pipelines, a hot air gate and a cold air gate, wherein the hot air gate and the cold air gate are arranged between the pipelines. The material inlet of the drying tower is connected with a material outlet of an elevator through an upper three-way valve, the material outlet of the drying tower is connected with a lower three-way valve, one material outlet of the lower three-way valve is connected with a material inlet of the elevator, and another material outlet of the lower three-way valve is a material outlet outside the machine.

Description

technical field [0001] The present invention relates to a kind of grain drying equipment used in the field of grain drying, in particular to a continuous and circular dual-purpose small Grain Dryer. Background technique [0002] my country is a big agricultural country, and it is also a big grain-producing country in the world. Every year, a large number of grain crops need to be dried by mechanical drying after harvesting because of high moisture content, which is used to dry the grain crops. The content falls below the safe storage moisture. This also makes grain drying equipment more and more widely used. Especially in the vast rural areas, with the emergence of a large number of large grain growers and grain buying and selling brokers, small grain dryers have become a commonly used grain drying equipment. [0003] The small grain dryers currently used in rural areas are all circulation drying models. A cyclic working process includes three working stages: feeding of g...

AI Technical Summary

Problems solved by technology

Because the circulation dryer dries the grain in batches, and both the feeding of the grain and the discharging of the baked grain take up the working time of the whole machine, the production efficiency is low

Especially for drying low-moisture grain materials with precipitation below 5%, the method of batch cycle drying is more inconvenient

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