Processing method for wash-free millet

Abstract

The invention provides a processing method for wash-free millet, which comprises the following steps: removing large impurities by a scalping machine; removing small impurities by a vibrating screen; removing light impurities; feeding to a stoning machine; carrying out magnetic separation; husking and decladding for 40-50% of the millet for the first time; husking and decladding for more than 95%of the millet for the second time; carrying out husked rice separation; carrying out the magnetic separation; opening rough by grinding for the first time; moderating grinding by grinding for the second time; fine grinding for the third time; grading by the vibrating screen; reducing the temperature by absorbing bran powder; feeding into the stoning machine; feeding into a millet classifying screen; carrying out color selection; slightly polishing; and carrying out the magnetic separation and package. In the invention, reasonable improvement and adjustment are carried out on the arrangement of the devices, assembly of the workpiece and the process parameters as follows: the working procedures of secondary husking, three processes of grinding and slight polishing are adopted, the ratio of the pressures of the grind for the first time, the second time and the third time to the flow thereof is suitable, and the percentage of head rice is improved by reducing broken rice; by using the technology of the invention, the machining accuracy of the wash-free millet is 85-90%, the total amounts of the impurities is lower than 0.01%, the moisture is about 12%; and the millet has pure color, smell and mouthfeel without bran powder, sand and mildew pellets, and still keeps the natural millet smell, is clean and sanitate, and can be eaten without cleaning.

Description

technical field [0001] The invention relates to the field of grain processing, in particular to a processing method for washing-free millet. Background technique [0002] The traditional technology of processing millet-free millet is to first process millet into millet that meets the quality standard of GB / T11766-1989, and then carry out further processing-hand selection on this basis, which cannot be processed continuously on a production line. The reason is that the technology is backward and the configuration performance of the process equipment cannot be achieved. At present, in the finishing process of rice, the temperature of rice is getting higher and higher due to the mutual friction between processing machinery (especially emery roller rice milling machine, etc.) performance, so that the rice grains become soft and fragile; with the development of the economy, people's living standards improve, the pace of work accelerates, and the consumption level of rice is also...

AI Technical Summary

Problems solved by technology

Most of the existing high-grade rice in the market does not meet the requirements of scouring-free. One of the important reasons is that it is impossible to remove the fine dust adsorbed on the surface of rice grains under the action of static electricity. At the same time, dust is also the source of insects and deterioration; especially under the action of mechanical power in modern rice mills, the strength of rice milling increases, causing the room temperature of rice milling to rise, sometimes up to 60°C to 70°C, which is auspicious. Some nutrients are decomposed and destroyed; in addition, the high-intensity friction between mechanical parts and grains makes rice stained with metal ions, which is one of the reasons why rice loses its natural fragrance;

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