Composite electric heating grain dryer

Abstract

The invention discloses a composite electric heating grain dryer. The composite electric heating grain dryer comprises an elevator, a bin and a drying device, wherein the drying device is arranged above the bin; the outlet of the elevator is connected with the inlet of the drying device. The composite electric heating grain dryer is characterized in that the drying device comprises an upper drying chamber and a lower drying chamber; an independent hot-air-room is arranged under a conveying belt; a tempering bin is arranged between the upper drying chamber and the lower drying chamber; therefore, the drying process can be automatically controlled by combining the design of a control terminal. Compared with the prior art, the composite electric heating grain dryer has the advantages that cost and environmental pollution can be reduced due to no hot-blast stove; an independent air chamber is adopted to supply heat, the drying hot-air temperature can be randomly adjusted, and the grain has high drying quality; the drying efficiency is improved since stage drying cannot cause interference; the design of the tempering bin is well matched with the grain drying characteristics, and the grain drying efficiency is high; the grain drying mode can be adjusted for different grain types by combining the control terminal, and a relatively high drying efficiency can be realized under a relatively low energy consumption condition.

Description

technical field [0001] The invention relates to the technical field of grain drying devices, in particular to a composite electric heating grain dryer. Background technique [0002] my country is a large agricultural country, with a total grain output of about 500 million tons per year. Most of the grains are harvested with a moisture content that does not meet the storage requirements and need to be dried in the sun before they can be put into storage. Traditional drying requires good weather and consumes a lot of manpower. Therefore, improving the degree of mechanization of grain drying, developing efficient and clean grain dryers, and improving the quality of grain drying have important application value and social significance. [0003] Most of the existing grain dryers are tower-type and drum-type grain dryers, which work in cross-flow or counter-flow mode. The grain is dried unevenly and needs to be dried repeatedly. The drying feature is equipped with hot air temper...

AI Technical Summary

Problems solved by technology

[0003] Most of the existing grain dryers are tower-type and drum-type grain dryers, which work in cross-flow or counter-flow mode. The grain is dried unevenly and needs to be dried repeatedly. Drying features Equipped with hot air temperature, the quality of grain after drying is poor, the rate of bursting is high, and it does not have the function of grain dust removal and impurity removal, and the degree of automation is poor

In addition, most grain dryers need to be equipped with independent hot air stoves, and fuel combustion produces air pollutants, which has poor environmental benefits

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