Environment-friendly dust-free rice production process

Abstract

The invention discloses an environment-friendly dust-free rice production process. The environment-friendly dust-free rice production process comprises steps as follows: whether the slope angle of a screen surface is proper is checked; equipment is started, and feeding is conducted after an empty car runs normally; the material flow is adjusted and kept uniform and stable, the thickness of a flow layer in the middle of the screen surface is controlled to be about 15 mm, supercritical CO2 is adopted for bran powder, in the supercritical state, liquid CO2 makes contact with bran, grease in rice bran is dissolved in the liquid CO2, then pressure reduction and heating are conducted, the liquid CO2 is changed into gas, and rice bran oil is obtained; in the rice processing process, rice screening, rice hulling and husked rice separation are carried out, so that the rice precision in the rice processing process is improved, dust and impurities remaining in rice are greatly reduced, subsequent rice cleaning by people is facilitated, the convenience in the rice eating process is improved, supercritical CO2 is adopted, and in the supercritical state, the rice bran oil is prepared. Resources are saved, and the environmental protection property in the rice bran powder production process is improved.

Description

technical field [0001] The invention belongs to the technical field of rice processing, in particular to an environment-friendly and dust-free rice production process. Background technique [0002] Rice processing refers to the process of removing the husk and cortex of rice. Rice kernels are composed of chaff, cortex, embryo and endosperm. The purpose of rice processing is to separate the endosperm from other parts with a minimum degree of fragmentation to produce rice with better edible quality. The process of removing the husk and cortex from cleaned rice. The grain of rice is composed of chaff, cortex, embryo and endosperm. The weight percentages of each part are: 18-21% of chaff, about 6% of cortex, 66-70% of endosperm, and 2-3% of embryo. The chemical composition of each component is quite different. Among them, the chaff contains up to 40% fiber, which has little nutritional value; the cortex is rich in protein and fat, but also contains more fiber; the embryo cont...

AI Technical Summary

Problems solved by technology

[0003] However, in the common rice processing process, it is easy to mix more bran powder, so that the quality of the subsequent rice is not high, so that there are more impurities in the rice, which affects the quality of the rice.