Rice processing method and equipment

Abstract

The invention discloses a rice processing method and equipment, and belongs to the technical field of rice processing. The processing method comprises the steps of raw grain processing, rice hulling,husked rice separation, thickness grading, rice milling, color sorting, polishing, rice grading and magnetic separation, and finished product packaging. A rice grading and magnetic separation integrated machine comprises a shell, a driving mechanism, a first filter cylinder, a second filter cylinder and a lantern ring. The first filter cylinder, the lantern ring and the second filter cylinder arein butt joint in sequence to form a roller for screening rice. The roller is obliquely arranged, an inlet pipe is arranged at the high end of the roller, and an extension pipe is arranged at the low end of the roller. The bottom of the shell is provided with a broken rice outlet, the driving mechanism is used for driving the first filter cylinder and the second filter cylinder to rotate around thecentral axes of the first and second filter cylinders respectively, and magnet pieces are arranged in the first filter cylinder. The process is simple, the equipment cost is low, the processing costis reduced, and after scrap iron in the rice is removed, the rice quality can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of rice processing, more specifically, it relates to a rice processing method and equipment. Background technique [0002] Rice is the most important food crop on the earth. 23% of human food calories come from rice. It is an important strategic material that is related to the national economy and people's livelihood. Therefore, countries all over the world attach great importance to the production, processing and transformation of rice. The utilization of rice has changed from the original What is only used as rations is transformed into deep processing and comprehensive utilization to maximize the various functions of rice. Rice is the finished product of rice after cleaning, husking, rice milling, finishing and other processes. At present, the production technology of rice in the world is relatively mature and has basically been finalized. Various production enterprises and scientific research institution...

AI Technical Summary

Problems solved by technology

[0003] After decades of development, my country's rice processing industry has achieved good results, shortened the gap with the international advanced level, and even reached the international advanced level in some fields and directions, such as my country's rice milling process and equipment It is already comparable to developed countries such as the United States and Japan, but there are still problems of small scale and scattered distribution. Further large-scale and intensive production is needed to improve the strength and international competitiveness of enterprises

[0004] At the same time, since the rice processing process needs to go through multi-level processes such as preliminary screening, impurity removal, drying, dehumidification, hulling, rice milling, polishing, color sorting, and grading sieve, almost every process involves rice with processing equipment. Mechanical friction is generated, so after the rice processing is completed, iron impurities are often entrained in the rice. In order to remove iron from the rice, some rice processing plants will install magnetic separation devices. However, the existing magnetic separation devices are all independent equipment. , and it is generally set between primary screening and impurity removal, which not only adds an additional processing process to rice processing, but also increases the processing cost, making the equipment occupy a large area and invest a lot, the process is complicated and cumbersome, and the processing efficiency is slow. At the same time, after removing impurities, the rice will go through multiple mechanical frictions, and the iron filings produced by mechanical frictions cannot be removed.

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