Co-production machining method of germ-remaining rice and multi-grade rice

A multi-grade technology with retained embryos, applied in the field of grain processing, can solve problems that are not conducive to the flexible production of various raw grains, achieve flexible and accurate product sorting, ensure product purity, and increase the retention rate of rice embryos.

Active Publication Date: 2017-06-23
国粮武汉科学研究设计院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to ensure the germ retention rate, this method limits the variety of brown rice an

Method used

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  • Co-production machining method of germ-remaining rice and multi-grade rice
  • Co-production machining method of germ-remaining rice and multi-grade rice
  • Co-production machining method of germ-remaining rice and multi-grade rice

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Embodiment 1: a kind of method for the coproduction processing of leaving germ rice and multi-grade rice, comprises the following steps:

[0038] (1) paddy is cleaned, hulled (hulled) and made into brown rice;

[0039] (2) Rice milling

[0040] The brown rice is lightly milled with multiple machines using an emery roller rice mill. 2-3 rice mills are used in series, the particle size of emery rollers is 46 (425-355 / μm), 46 (425-355 / μm), 60 (355-250 / μm) mesh respectively, and the speed of emery rollers is 940r / min, 880r / min, 840r / min.

[0041] (3) Sorting

[0042] Extract the appearance feature parameters of the rice image through the color sorter, judge the shape and color of the rice grains, and eliminate the endosperm that is yellow and in D 65Yellow-grained rice whose chromaticity index b* value is equal to or greater than 7 under the 10° field of view of the illuminating body, and separated to obtain embryonic rice and white rice. At the same time, the project...

Embodiment 2

[0046] Embodiment 2: a kind of method for the coproduction processing of leaving germ rice and multi-grade rice, comprises the following steps:

[0047] (1) Cleaning up japonica rice, hulling (husking) and making brown rice;

[0048] (2) Rice milling

[0049] The brown rice is lightly milled with multiple machines using an emery roller rice mill. 2-4 sets of rice mills are used in series, the particle size of emery rollers is 36 (600-500 / μm), 46 (425-355 / μm), 60 (355-250 / μm) mesh, and the speed of emery rollers is 1040r / min, 940r / min, 840r / min.

[0050] (3) Sorting

[0051] Extract the appearance feature parameters of the rice image through the color sorter, judge the shape and color of the rice grains, and eliminate the endosperm that is yellow and in D 65 The yellow-grained rice whose chromaticity index b* value is equal to or greater than 7 under the 10° field of view of the illuminating body is separated to obtain white rice. Working conditions of color sorter: air s...

Embodiment 3

[0056] Embodiment 3: a kind of method for co-production processing of remaining germ rice and multi-grade rice comprises the following steps:

[0057] (1) Cleaning up japonica rice, hulling (husking) and making brown rice;

[0058] (2) Rice milling

[0059] The brown rice is lightly milled with multiple machines using an emery roller rice mill. 3-4 rice mills are used in series, the particle size of the emery rollers is 36 (600-500 / μm), 46 (425-355 / μm), 60 (355-250 / μm) mesh, and the rotation speed of the emery rollers is 1040r / min, 940r / min, 840r / min.

[0060] (3) Sorting

[0061] Extract the appearance feature parameters of the rice image through the color sorter, judge the shape and color of the rice grains, and eliminate the endosperm that is yellow and in D 65 Yellow-grained rice whose chromaticity index b* value is equal to or greater than 7 under the 10° field of view of the illuminating body, and separated to obtain embryonic rice and white rice. At the same time,...

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Abstract

The invention discloses a co-production machining method of germ-remaining rice and multi-grade rice. The method comprises the steps of rice cleaning, rice shelling, rice grinding, polishing, sorting, grading, magnetic separation and packaging. According to the rice grinding technology, a sand roller rice grinding machine is selected, and multi-machine light grinding is adopted; the specification of 600-500/micrometers, 425-355/micrometers and 355-250/micrometres is adopted in the granularity of diamond sand rollers of the rice grinding machine; the rotating speed is controlled to range from 840 to 1040 r/min. According to the sorting technology, a color sorting machine is adopted to judge the shape and the color of rice, through separation, germ-remaining rice and white rice are obtained. According to the proportion of the germ projection area to the whole rice grain projection area, the full-germ or half-germ or flat-germ or incomplete-germ germ-remaining rice with the purity of 85% or above is obtained; according to the grading technology, through the judgment of rice grain skin leaving degree and the broken rice by the color sorting machine, first-stage (second-stage or third-stage) rice is obtained. The method has the beneficial effects that the germ-remaining rice and multi-grade rice co-production technology is provided for the rice machining industry, the rice germ retention rate is improved, production energy consumption is reduced, and the rice is nutritional and sanitary.

Description

technical field [0001] The invention belongs to the technical field of grain processing, and in particular relates to a co-production process of germinated rice and multi-grade rice, in particular to a co-production processing method of germinated rice and multi-grade rice. Specifically, the co-production of graded rice is implemented in the rice processing process. First, after the rice cleaning, husking, rice milling, polishing and other stages, the color and shape of the material are identified and sorted by the color sorter, and the remaining germ rice and rice are obtained. White rice, and the purity of the remaining germ rice reaches 85%, and the content of the remaining germ rice in the white rice is less than 5%; the second is to obtain multi-grade rice by further grading the white rice obtained by sorting. Background technique [0002] With the improvement of rice processing level, the processing precision level of rice is getting higher and higher. Due to people's...

Claims

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Application Information

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IPC IPC(8): B02C9/04B02C4/00B02C21/00B07C5/342
CPCB02C4/00B02C9/04B02C21/00B07C5/3425
Inventor 谢健刘化郭亚丽秦正平王辉黄文雄程科张朝富李志方杨会宾
Owner 国粮武汉科学研究设计院有限公司
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