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...

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