With the gradual improvement of living standards, people have put forward higher requirements for the quality of rice, and the rice milling process has been rapidly improved. With the continuous improvement of rice varieties, in recent years, the yield of slender rice has become higher and higher. This kind of rice will have a large number of pop-ups due to its own reasons during the harvesting and threshing process. Traditional rice mills will be broken due to backward technology. The rice rate increased.
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The components of the traditional rice mill are not arranged reasonably and the technology is backward. As a result, the air volume passing through the rice mill room is insufficient, the wind pressure is low, and the grain settles at the bottom of the rice mill room under its own weight. The fluidity is poor. The sports area of meters is not fully utilized. If you want to improve the processing quality of rice, you need to use one or two rice mills to increase the pressure inside the rice milling chamber, but it will increase the rice temperature, coupled with the high burst rate of the original rice, during the rice milling process Will produce a lot of broken rice. Therefore, in order to reduce the broken rice rate and improve the quality of rice, a multi-machine light milling process must be used.
The multi-machine light milling process is to increase the number of rice mills to increase the moving area per unit of rice. However, by reducing the internal pressure of each rice mill and controlling the temperature of the rice grains during milling, the rice crushing rate is reduced and the rice milling rate is increased. Processing quality can cause a dramatic increase in cost. In order to reduce the cost and improve the processing quality of rice, a new type of rice mill has been developed. This model has greatly reduced the utilization rate of rice milling area per unit of output and the amount of air that penetrates the rice milling chamber. Broken rice rate.
The milling process of brown rice uses friction and grinding to remove the rice bran layer. Friction milling requires high pressure and a certain polishing speed in the polishing chamber, so friction milling is also called pressure milling. Grinding rice does not require high polishing chamber pressure, but requires high line speed and rice milling rollers with many micro-blades, so grinding rice milling is also called speed rice milling. In fact, in any one rice mill, these two rice milling methods exist at the same time, but due to the different structure and parameters of the rice mill, any one of the rice mills has a dominant mill The rice method can be divided into friction type rice mill (iron roller rice machine) and grinding type rice mill (sand roller rice machine).
