Grain drying machine

Abstract

The invention relates to a grain drying machine. The grain drying machine comprises a rack, a hot air device, a cold air device and a drying cavity set used for containing grains are arranged on the rack, a first drying cavity and a second drying cavity are symmetrically formed in the drying cavity set, the first drying cavity and the second drying cavity are internally provided with hollow drying pipes, the bottom ends of the drying pipes are connected to the hot air device, the top end of each drying pipe is lower than the top end of the corresponding drying cavity, feeding augers are arranged at the lower ends of the drying pipes in the drying cavity set, and a hot air inlet connected with the hot air device and a cold air inlet connected with the cold air device are formed in the lower portions of the feeding augers in the drying cavity set. Through cooperation of the drying pipes and the feeding augers, circular drying of grain is achieved, due to the fact that the hot air device alternatively achieves air inlet, and the cold air device achieves continuous air inlet, the temperature in the first drying cavity and the temperature in the second drying cavity are balanced, coking of grain is reduced, and uniform drying of grain is effectively achieved.

Description

technical field [0001] The invention relates to the field of agricultural machinery, in particular to a grain dryer. Background technique [0002] At present, the popularity rate of grain mechanized drying is very low. The boiler is mainly used to heat and dry the grain in the drying tower. The disadvantage is that the heat loss is large during the drying process, which wastes energy and causes environmental pollution; The grain is heated unevenly, and the grain on the periphery may be overheated and cause coking, while the grain in the center is not dehydrated due to less heat, resulting in a decline in grain quality and poor drying effect. Contents of the invention [0003] The present invention aims to solve the above defects, and provides a grain dryer. [0004] In order to overcome the defects in the background technology, the technical solution adopted by the present invention to solve the technical problem is: a grain dryer, including a frame, on which a hot air de...

AI Technical Summary

Problems solved by technology

[0002] At present, the popularity rate of grain mechanized drying is very low. The boiler is mainly used to heat and dry the grain in the drying tower. The disadvantage is that the heat loss is large during the drying process, which wastes energy and causes environmental pollution; The grain is heated unevenly, and the grain on the periphery may be overheated and cause coking, while the grain in the center is not dehydrated due to less heat, resulting in a decline in grain quality and poor drying effect

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