Method for processing milled rice with embryos and equipment thereof

Abstract

The invention aims to provide a method and equipment for processing milled rice with embryos. The process is simple, the cost is low, and the milled rice with embryos is nutrient-rich. The method comprises the steps of husking rice, separating husk from grains, purifying the husked rice, performing primary winnowing, performing primary grinding, performing secondary grinding, performing secondary winnowing, performing color sorting, grading and packaging. Grains and husks are screened, subjected to magnetic separation and lifted to a grain winnower; the grain winnower sorts and purifies the husked rice and lifts the husked rice to a first MNML25 type rice mill machine; a rotating speed of a first emery roll is adjusted to 1120 rpm; wind pressure of an draft fan of the rice mill machine is adjusted to 12 pa / cm<2>; the emery roll strips off and grinds peels or seed husks containing pesticide residues of the husked rice; rice grains ground and husked by the first rice mill machine are lifted to a second MNML25 type rice mill machine; a rotating speed of a second emery roll is adjusted to 1080 rpm; wind pressure of an draft fan of the rice mill machine is adjusted to 15 pa / cm<2>; and at the moment, the second rice mill machine removes a few seed husks and nucellus layers of rice grains from the first rice mill machine and keeps embryo parts and aleurone layers on the rice grains on the rice grains, so that the milled rice with embryos is formed. During grinding, the diameter of a rice grain conveying head of a mill is 240 mm, the width of a conveying inclined groove opening is 14 mm, and the depth is 13.5 mm. By the improvement on the method and the equipment, most of the aleurone layers and the embryos are reserved, most natural nutrition is reserved, the process is simple, the cost is low, and the milled rice with the embryos is nutrient-rich.

Description

technical field [0001] The invention relates to a rice processing method and processing equipment, in particular to a germ rice processing method and processing equipment. Background technique [0002] Chinese people take rice as their staple food, but people are processing rice: high-quality rice → sifting → stone removal → hulling → paddy separation → brown rice warehouse → whitening → polishing → grading → color sorting → vacuum packaging → finished product process, especially It is vitamin B that is coated on the surface of rice grains when rice is processed from brown rice 1 Due to the lack of technology in the process of processing protein and protein, what is currently processed on the market is basically polished white rice with only the endosperm after removing the germ and aleurone layer. About 63% of the nutrients are accumulated in the paste accounting for 8.5% of the weight of the rice. In the powder layer and germ, both food is wasted like this, and nutrition ...

AI Technical Summary

Problems solved by technology

[0002] Chinese people take rice as their staple food, but people are processing rice: high-quality rice → sifting → stone removal → hulling → paddy separation → brown rice warehouse → whitening → polishing → grading → color sorting → vacuum packaging → finished product process, especially It is vitamin B that is coated on the surface of rice grains when rice is processed from brown rice 1 Due to the lack of technology in the process of processing protein and protein, what is currently processed on the market is basically polished white rice with only the endosperm after removing the germ and aleurone layer. About 63% of the nutrients are accumulated in the paste accounting for 8.5% of the weight of the rice. In the powder layer and germ, it is a waste of food and a serious loss of nutrition

[0003] The Chinese patent name is the processing method of rice with germ, the publication number is CN1994570, and the publication date is 2007-07-11. It discloses a processing method with a complete rate of 98% of rice with germ, which is sorted by density and photoelectric color sorting. , magnetic separation and winnowing process to form clean brown rice, and then use iron roller wind jet rice mill for whitening treatment, the milling process is 4 machines connected in series, according to the ratio of the whitening pressure of the 4 rice mills in the processing sequence 6:4:2:1, and then through the finishing process of the finished product, the germ rice with a germ retention rate of more than 80% is obtained. This processing method is complicated and requires 4 steps of whitening, which increases the processing cost.

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