Flexible polishing device for granulated grains

Abstract

The invention provides a flexible polishing device for granulated grains. The flexible polishing device comprises a shell, a feeding device, at least one flexible polishing unit, a bran discharging device and a rice outlet, wherein the flexible polishing unit comprises a radial gravity self-flowing flexible polishing chamber; the feeding device, the flexible polishing chamber and the rice outlet are sequentially arrayed from top to bottom along the gravity direction. According to the flexible polishing device for the granulated grains, the shear effect of the granulated grains in the polishing chamber is avoided, the flexible friction effect is improved, the damage to rice in the polishing process is greatly reduced while rice bran is cleaned and the rice is polished, the rice yield is improved and the energy consumption is reduced.

Description

technical field [0001] The invention belongs to the technical field of grain processing, and in particular relates to a flexible polishing device for granular grain. Background technique [0002] Various granular grains usually need to be polished to different degrees. The polishing process is to use external force to throw away the bran powder, tiny insect eggs and peaks on the surface of granular grains (the irregular curve like a mountain peak can be seen with a microscope), so that The surface of granular grains is clean, or the surface peaks are flattened (or ground) into a smooth plane (mirror surface). The level of its products is mainly determined by the degree of polishing. For example, according to the degree of polishing, rice can be divided into high-precision rice (such as super rice, clean rice), low-precision rice (such as standard one meter, standard two meters), rough rice and brown rice. And other grades, the latter three kinds of rice usually only need to...

AI Technical Summary

Problems solved by technology

And these three kinds of rice have the following advantages and disadvantages: brown rice retains all the rice bran and germ rice, has full nutrition and bright colors (such as black, red, purple, etc.), is very popular with certain groups of people, and has high Yield, high processing efficiency, but rice bran and germ are rich in crude fiber, bran wax and furfural, resulting in bad taste of brown rice, which limits the sales of brown rice

[0006] Those skilled in the art have improved the problem of high broken rice rate. For example, the Chinese patent application No. 932378048 discloses a rice polishing machine, which is provided with an axially connected rice brushing chamber and a polishing chamber, and is respectively provided with a spiral The propulsion head uses the oblique ribs on the brushing roller and the polishing belt on the polishing roller to help convey the rice grains, so that the extrusion force on the rice grains is small. It claims that the increase in crushing is less than 1%, but it is still a spiral propulsion method. The processing of rice grains still relies on the steel extrusion method of polishing rollers, and there are still obvious problems of high broken rice rate and high energy consumption

Therefore, under new market conditions, it is a subject to be explored by those skilled in the art to seek to solve the three major technical problems of "skin injury", low yield and high energy consumption in prior art polishing equipment

Images