Wheat cleaning and classifying process for flour milling of stone grinder

Abstract

The invention relates to a grading technique for cleaning wheat-grains during the process of flour milling by a stone mill. The technical process includes that the wheat grains in compliance with the flour processing quality are processed by a wheat-grain receiving system, a coarse wheat-grain clearing system, a tempering system and a wheat-grain cleaning system. A graded specific-gravity stoner, a suction separator and a screening device are used to clean and process the wheat-grains in a graded manner according to the quality, the lightweight and heavyweight of the wheat grains. Compared with the traditional cleaning techniques, the invention can effectively separate the heavy-weight and light-weight wheat grains; separate the epidermises and the matters attached on the wheat grains to the largest extent; lower the residue of pesticide and microorganism in the flour, and reduce the bran quantity and dust content in the flour; as a result, the purity of the milled material is ensured, the milling effect and flour yield are improved, and the flour processing precision and food safety are enhanced.

Description

technical field [0001] The invention relates to the technical field of flour processing, in particular to a stone-milled wheat cleaning and grading process. Background technique [0002] Wheat flour is an important basic raw material for people's daily life and food industry. In recent years, with people's requirements for "nutrition, health, safety, and variety" in diet, various household specialty flours with flavor characteristics have also achieved great development. The demand for all kinds of premixed flour, stone-milled flour, whole wheat flour, and high-fiber flour is increasing day by day. [0003] The biggest feature of stone-milled flour is that it has a special flavor that is not available in wheat flour produced by ordinary milling industrial methods. It is an important link in the cleaning process of flour industrialized wheat. [0004] At present, the domestic wheat cleaning process generally adopts dry cleaning due to the requirements of impurities, equipm...

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Problems solved by technology

[0004] At present, the domestic wheat cleaning process generally adopts dry cleaning due to the requirements of impurities, equipment conditions, flour appearance quality, output, and flour extraction rate. It does not apply the technology of wheat cleaning and grading, and the wheat is heavy after cleaning. Wheat and light wheat are milled together in the milling process, resulting in large differences in the quality of the materials entering the mill, small differences in the flour of each flour flow, and a low extraction rate of high-quality flour

The traditional stone milling cleaning process is simpler, generally using combined cleaning equipment and wheat washing equipment, this method is less effective for cleaning light impurities, surface adherents, different grains, light wheat, buckwheat Directly affect the effect of milling process and flour quality

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