Grain drying device

Abstract

The invention relates to a drying device, and in particular relates to a grain drying device which comprises a preheating chamber, a drying chamber and an electro thermal chamber which are arranged in sequence from top to bottom, wherein the electric thermal chamber is capable of generating hot air; a feeding hole in a funnel shape is formed in the top of the preheating chamber; baffles in a closing mode are arranged inside the preheating chamber below the feeding hole; a plurality of material ejection holes with shrunk holes are arranged at the lower part of the preheating chamber; the drying chamber is internally provided with a plurality of ventilation tubes with through holes; the top parts of the ventilation tubes are communicated with the preheating chamber; the bottoms of the ventilation tubes are communicated with the electric thermal chamber below; the electric thermal chamber is internally provided with a graphite electric thermal plate. By adopting the grain drying device with the technical scheme, grains can be sufficiently preheated without crack caused by sharp temperature raising, and the quality of the grains is ensured.

Description

technical field [0001] The invention relates to a drying device, in particular to a grain drying device. Background technique [0002] With the development of modern agricultural science and technology, advanced grain production increasing technology has been popularized and applied in vast rural areas, but the increased grain needs to be safely stored. The key to the safe storage of grain is to reduce the moisture content in the grain to reduce the occurrence of mildew. At present, some grain depots and grain processing factories in my country have changed from the traditional method of artificial drying to reduce the moisture in grain to the mechanized drying method. The outstanding advantage of the mechanized drying method is that it is not restricted by natural conditions, can work around the clock, and has a large drying batch and high work efficiency. However, due to the rapid temperature rise in the drying process, the drying equipment used today will make the grain ...

AI Technical Summary

Problems solved by technology

The outstanding advantage of the mechanized drying method is that it is not restricted by natural conditions, can work around the clock, and has a large drying batch and high work efficiency. However, due to the rapid temperature rise in the drying process, the drying equipment used today will make the grain The outer layer of the grain shrinks rapidly, resulting in a large peripheral tensile stress and internal compressive stress, which causes the grain skin to crack (shock) or internal cracks (burst), which reduces the quality and commodity value of the grain. Therefore, to a certain extent, it restricts The promotion and application of mechanized drying methods in many small and medium grain depots, rice mills, flour mills and other units

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