In general millet after hulling and hulling under the grain obtained after the separation of rough millet need to go through the rice peeled and in addition to crushing, in addition to chaff, in addition to different particles and other processes, in order to get the quality to meet the requirements of good food quality Finished millet. Milling section of the main tasks are: grinding to the surface of brown rice, most or all of the cortex, made of finished rice in line with standards. In order to ensure the quality of finished rice, rice and finished finishing generally include rice, rice grading, grinding, polishing and other processes.
Milling: millet and rice is also similar to grinding, grinding white grinding method is divided into grind white, friction from the grinding white two.
Commonly used rice milling equipment: sand roller rice milling machine and iron roller rice milling machine two categories.
Usually multi-machine light grinding, sand and iron combination of rice milling process, sand roller rice milling machine is mainly used to open rough, iron roller mill for millet to fine grinding. Taking into account the small size of millet, rice bran oil larger, so the rice milling machine parameter selection and processing and rice is different. Rice machine sieve sieve with a general meter is 0.6-0.8mm, and should strengthen the wind and suction chaff to enhance the role of rice in the rolling room rolling. Operation should be to reduce the whitening pressure, reduce the temperature in the white grinding, low temperature milled, and as much as possible to avoid oily substance agglomeration, so as not to affect the normal operation of rice machines and finished rice quality.
Product finishing: the past into the skin after grinding white millet, often mixed with broken rice, rice bran, a small amount of millet, which not only affect the quality of the finished product, but also extremely unfavorable to the finished product storage. So must be grinded millet after finishing. In this case,Finished finishing generally include: in addition to broken, in addition to chaff, polishing, color and so on. Which in addition to crushing and chaff is an indispensable process, polishing, color selection will be based on the situation of the original grain and the quality of the finished product to determine. In this case, In addition to crushing, in addition to bran generally used screening equipment, in addition to broken screen surface is generally selected for the 12 * 12 holes / 25.4mm woven screen, in addition to bran sieve surface selection of 22 * 22 holes / 25.4mm woven screen. In this case,Processing of clean-free washing of millet, the need for polishing products and color selection. As the high content of fat content of rice bran powder, viscosity, the bran resistance, easy to plug the rice sieve sieve, so the polishing machine should increase the suction intensity, humidification should pay attention to control the amount of water, the best use of protein, bran Such as polishing agent. Polishing polishing agent by means of atomization spray, evenly applied to the surface of rice grain, in which the water from the polishing roller to work the friction heat generated by evaporation or partial evaporation, polish in the protein and other substances are wrapped in rice grain surface, Forming a layer of crystal clear and translucent film. This layer of film on the grain has a very good protection, so that rice will not be affected by temperature and humidity effects of bran powder, thereby reducing the invasion of insect mold, an increase of grain smoothness.
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