Here are a few ways to remove impurities from wheat.
First of all: In order to ensure the purity of the wheat entering the flour mill, all kinds of impurities in the raw materials should be removed, but the focus of removal is all kinds of dust mustard impurities, especially various inorganic impurities that have a great impact on production and product purity. When arranging the impurity removal sequence, it should be considered to remove the large dust mustard impurities that have direct harm to production first, and then remove other mixed and adhering impurities.
Secondly: For impurities that are different from wheat in more than two ways, simpler methods should be used to remove them as much as possible. For example, for the gravel whose particle size is obviously larger or smaller than that of wheat grains, the effect of screening is better than that of destoner.
In addition: side-by-side impurities with a suspension speed similar to that of large-grain wheat are difficult to remove, such as side-by-side mud blocks with smaller particle size, etc. Such impurities need to be removed by selective or comprehensive methods.