High-quality rice fine processing process

Abstract

The invention provides a high-quality rice fine processing process, which comprises the processing flow processes of primary magnetic separation, primary cleaning, metering, sieving, stone removing, secondary magnetic separation, husking, husked rice separation, tertiary magnetic separation, ultrasonic atomization tempering, rice milling, primary polishing, polished rice primary grading, spotted rice color separation, secondary color separation, fourth magnetic separation, secondary polishing, polished rice secondary grading and metering and packaging. According to the ultrasonic atomization tempering, an ultrasonic atomization humidification mode is used for humidifying the rice, the tempering time is 10 to 20 minutes, the tempering temperature is controlled to be between 30 DEG C and 40 DEG C, the unit humidification quantity is 0.5 to 5 percent, the actual seeping quantity is 2 to 3 percent, and the moisture content of the polished rice finally obtained through processing is not greater than 14 percent; tempering agents adopt ultrasonic atomization water; during the spotted rice color section, a photoelectric color separation device is used for automatically picking out different-color rice, the full-process temperature reduction is carried out in the whole processing flow process, and the temperature rice in the processing process is controlled not to exceed 5 DEG C. The high-quality rice fine processing process has the advantages that the high-quality rice can be subjected to integrated utilization and deep processing, and the final product quality is improved.

Description

technical field [0001] The invention belongs to the technical field of rice processing technology. Background technique [0002] Existing rice processing technologies can be summarized into the following three types: [0003] (1) Simple type. Its technological route is to remove impurities and stones → shelling → roughness selection → rice milling 1-2 steps → separation of rice and rice cakes → finished product. This processing method can only be applied to small-scale production, and it is mainly concentrated in towns and rural areas for on-site processing. The production cost is low, the price of rice is the cheapest, and the finished rice is basically broken. It is mainly provided to food and clothing consumer groups. [0004] (2) Universal type. Its technological route is impurity removal → stone removal → shelling → roughness selection → 3-4 steps of rice milling → 1-2 steps of polishing → white rice grading → metering and packaging → finished product. The main feat...

AI Technical Summary

Problems solved by technology

[0007] (1) The processed products have poor stability and reliability, rough appearance, and most products have not yet formulated reliability standards

[0008] (2) The technology of the rice industry is seriously lagging behind, and there is a lack of important processing procedures such as rice drying, brown rice, white rice conditioning, and rice blending, resulting in serious problems such as low processing whole rice rate, short shelf life, impurities, and different-colored grains. Processing and sales The high cost restricts the development of rice processing enterprises

[0009] (3) Lack of comprehensive utilization of by-products

During the rice processing process, a large number of by-products such as rice husk, broken rice, and oil bran are not utilized, and there are few new value-added new technologies for deep processing of rice, which has caused great cost pressure and environmental protection pressure on processing enterprises.

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