Grain drying process and drying equipment

Abstract

The invention discloses a grain drying process and drying equipment. The process comprises the steps of carrying out primary filtration, fine filtration, grain dispersion, grain tempering, grain drying, grain circulation and grain storage; the drying equipment comprises a drying machine, wherein a supporting base is fixedly installed at the lower end of the drying machine; the drying machine is divided into a tempering homogenizing section, a drying section and a discharging section from top to bottom, and the tempering homogenizing section and the drying section are consistent in height; whengrains are dried, the processes of windless tempering treatment, hot air heating and final tempering discharging are adopted, so that the temperature difference change of the grains is small, and thequality and value of the grains are improved; the height ratio of the tempering homogenizing section to the drying section is set to be 1: 1, so that the overall height of the drying machine can be greatly reduced, and therefore the produced finished product is reduced, and on the premise of ensuring the drying speed, the drying quality is improved.

Description

technical field [0001] The invention relates to the technical field of grain drying, and more specifically relates to a grain drying process and drying equipment. Background technique [0002] At present, when grain is dried, not only high drying rate is required, but also high quality is required. Circulating dryer generally adopts drying-slow drying process. First, the grain is stored for a period of time to evaporate part of the water, and then the grain is kept warm. For a period of time, the moisture inside the grain is diffused to the surface, reducing the moisture gradient inside the grain, and then enters the next drying process. This process can improve grain quality and reduce energy consumption, but adding a slow recovery process in the drying process will inevitably reduce the productivity of the dryer. [0003] The Japanese circulation grain dryer is equipped with a slowing section inside, and the ratio of the slowing section time to the drying time is 5:1 to 8...

AI Technical Summary

Problems solved by technology

The various types of grain dryers currently produced in my country are basically equipped with a very long slow-flow section, resulting in a high height of the dryer. Under the premise of a fixed output, the slow-flow section occupies a large proportion of the whole machine. It also leads to higher costs, so we propose a grain drying equipment to solve the above problems

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