A wheat flour milling process without repeated grinding

Abstract

The invention relates to a wheat milling technology free of repeated grinding, which comprises the steps of cleaning, primary grinding, secondary grinding, purification and layered sieving. The layered sieving step is divided into three layers by improving operation standards and control parameters of the cleaning, primary grinding, secondary grinding, purification steps, and flour standards of the layers are strictly controlled, so that upper and middle layer flour can meet a quality requirement of flour and is directly packaged, and lower layer flour can mostly or fully meet the quality requirement of the flour and is partially or fully packaged; and a tee switching plate is arranged at the lower layer flour, so that when the lower layer flour fails to meet the quality requirement of the flour, the lower layer flour is guided to the sieving step via the switching plate. The technology can control the quality, is simple and flexible to operate, avoids stop and repeated grinding of the lower layer flour, improves the production efficiency and the product quality, increases the flour yield, lowers the production cost, saves a resource, and facilitates flour quality monitoring.

Description

technical field [0001] The invention belongs to the technical field of wheat deep processing, in particular to a wheat flour milling process, in particular to a wheat flour milling process without repeated grinding. Background technique [0002] Flour, or wheat flour, is a powder made from wheat and is a staple food in most parts of northern China. At present, with the continuous increase of my country's population, the market demand for flour is also increasing, the types and uses of flour are becoming wider and wider, and the processing methods of flour are also increasing. Coupled with the improvement of people's living standards, most people pursue "nutritious, healthy, safe, and diverse" diets, which put forward certain requirements for the quality of flour processing. Flour milling is the most important and common processing method for wheat processing. The process of wheat flour milling is generally cleaning, milling, cleaning, and layered sieving; among them, layere...

AI Technical Summary

Problems solved by technology

The process of wheat flour milling is generally cleaning, milling, cleaning, and layered sieving; among them, layered sieving is generally divided into three layers to sieve flour. Due to the limitation of existing process control standards, in layered sieving Generally, only the flour from the upper and middle layers can meet the flour standard requirements, which can be directly separated and packed into bags. The flour from the lower layer generally cannot meet the flour standard requirements. The common practice now is: first, the flour from the lower layer It is directly sent to the mill for re-grinding and layered sieving, which leads to repeated grinding, a serious waste of resources, and also affects production efficiency and product quality; the second is to directly mix the lower layer of powder into the powder flow, In this way, once it is detected that the powder output from the lower layer does not meet the standard, it must be shut down and re-adjusted, which seriously affects the normal production, resulting in low production efficiency, and also increases the difficulty of quality control, and there are great hidden dangers in product quality monitoring.