Abstract:

Drying is an important means to ensure grain safety. The poor drying capacity and low quality of grain are two
key problems to be solved during grain storage in China. Tempering, as an important part of grain processing, storage and
circulation, has dual characteristics of saving energy consumption and improving product quality. This paper classifies the
tempering operation in detail and systematically elaborates the optimization method for tempering operation parameters in
grain drying process and its effects on grain quality and energy consumption. Some problems that exist in the field of grain
drying are put forward, and the application prospects of tempering in grain drying are analyzed objectively.

Key words: tempering, grain, drying, quality, energy consumption