Rotary drum type grain dryer

Abstract

The present invention discloses a rotary drum type grain dryer which belongs to the grain storage field. The rotary drum type grain dryer includes a columnar dryer housing, a rotary shaft arranged in the middle of a dryer outer shell, and a drying rotary drum covered on the rotary shaft. A plurality of heating chambers are arranged within the drying rotary drum, each of the heating chambers is provided with a plurality of heating coilers, the heating coilers present a three-row and multiple-column staggered arrangement, and each one of the heating coiler is independent with the other. A heating resistance wire is wound around each of the heating coiler and is connected to a power supply assembly. Rolling-over gaps are left between the heating chambers and the drying rotary drum, and a plurality of spikes are provided on the inner wall of the drying rotary drum. The rotary drum type grain dryer enables a balanced heating of grains and finally reaches the purposes of improving drying efficiency.

Description

technical field [0001] The invention relates to the field of grain storage, in particular to a drum type grain dryer. Background technique [0002] China is a country with a large population, and the safety of grain reserves is related to the livelihood of the people. Before storage, grains such as corn must be dehydrated and dried to achieve a safe water content, so as to prevent mildew and deterioration during storage. In the past, grain drying mainly relied on natural drying, which took up a lot of space, took a long time, and caused many losses, making it difficult to meet the needs of centralized grain storage and transportation. In order to solve this problem, in recent years, grain drying towers have been used to dehydrate grains. The disadvantage is that during the drying process, heat loss is large, energy is wasted, and environmental pollution is caused; The grain may be overheated and cause coking, while the grain in the center is not dehydrated due to less heati...

AI Technical Summary

Problems solved by technology

In the past, grain drying mainly relied on natural drying, which took up a lot of space, took a long time, and caused a lot of losses. It was 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. The disadvantage is that the heat loss during the drying process is large, energy is wasted, and environmental pollution is caused; The grain 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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