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A friend from his hometown just bought a new rice mill, which is ideal after being put into production, that is, there are more broken rice in the processed rice. The author gives him the following analysis on the causes and elimination methods of more broken rice in the rice mill, which is also a reference for friends who use the rice mill.
There are many reasons for broken rice: first, the pressure in the rice milling chamber is too large, and the rolling time is relatively long, resulting in broken rice grains; Second, the rotating speed of the drum is too high, which is easy to break the rice grains; Third, the water content of the processed rice is large, that is, it is too wet, which is also easy to lead to more broken rice.
Solutions:
① Increase the gap between the rice knife and the drum, reduce the pressure in the rice beating machine, weaken the friction of rice, and the rice grain is not easy to break; However, the gap should not be greater than the longitudinal length of rice grains. Otherwise, although there is no broken rice, the rice quality will be rough.
② Adjust the opening of the outlet gate, that is, reduce the feed and increase the discharge, so as to reduce the pressure in the rice milling chamber, shorten the extrusion time of rice in the rice milling chamber, and the rice grains are not easy to break. Generally, the opening of the inlet ram should be controlled between 1 / 2-2 / 3. If the driving is too large, there will be too much rice in the rice milling room, and the resistance will become larger, which is easy to make the power belt slip, form overload, and even cause the rice beater to be stuck and damaged. If the inlet opening is too small, the original design efficiency of the machine will be reduced. The size of the outlet can be adjusted by appropriately increasing the opening of the outlet after the opening of the inlet is fixed. At the same time, observe whether the rice grains are complete and whether the beige is white and clean. If there are many broken rice, open it wider; If the rice grain is rough, turn it down. For the rice beater whose outlet is pressure type, the weight can be reduced or moved close to reduce the pressure of the rice milling chamber and the rice in the rice milling chamber (shorten the residence time of the rice in the rice milling chamber, so as to ensure that the rice grains are not broken.
③ According to the specific situation, appropriately reduce the drum speed.
④ Reduce the humidity of rice to enhance the hardness of rice grains
 
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