Study of Crushing Degree and Quality of Daqu under Different Conditions
The crushed raw material for the production of the daqu contains three parts:large skin,granules and fine powder.This trial encompasses the physical characteristics of the steel rolls,the period of use,and the time spent wetting the grain of the raw material to explore their effect on raw material comminution.The experimental results showed that the angle and depth of the steel roller drawing has a greater influence on the large skin and particles of the material.As the steel rolls are used for a longer period of time,they show a trend towards larger skins and fewer particles.The time to moisten the wheat is 6~9 hours.Crushing and moisture gradient tests are designed in conjunction with seasonal characteristics to produce a balanced product with excellent quality parameters.This experiment can be used as a reference for the production of medium and high temperature Daqu.