The color sorter for coarse grain is a device that automatically sorts out the heterochromatic particles in the granular materials by using the photoelectric detection technology according to the differences in the optical characteristics of the materials. At present, color sorters are used in the field of bulk materials or packaging industrial products, food quality testing and grading. In recent years, Hefei color sorter industry has developed rapidly and once became a research and development base for color sorters. Now 80% of color sorters on the national market are made in Hefei. Rice noodles, also known as rice noodles, are very popular in the south. It is made of rice. The rice noodles with good quality are white and pure in color and taste. To get white rice noodles, it is necessary to ensure that the rice does not contain impurities.

Therefore, rice must be selected before production. In industrial production, rice color sorter can be used to complete this step. When the rice flows slowly from top to bottom along the slide automatically set by the machine, the high-speed optical camera lens hidden on both sides of the slide will automatically collect the color information of the rice. Once it is found that there are abnormal rice grains with different colors, shapes and heads from healthy rice hidden in the rice spike team, the camera will instantly capture and image them and lock the target. At this time, the optical signal is converted into an electrical signal, and the high frequency solenoid valve device immediately turns on the air flow switch after receiving the signal. The driver will drive the ejector to eject high-speed and short air flow to quickly remove the impurities mixed in the rice grains.

Compared with manual work, the rice color sorter has incomparable advantages such as labor saving, time saving, high efficiency, low processing cost, and the selected products have higher quality assurance, which greatly improves the economic benefits. Consumers' liking for cross bridge rice noodles, Guilin rice noodles, snail noodles and other foods is getting higher and higher, and the demand for rice noodles in the food market is also increasing. The use of rice color sorter makes the quality and output of rice noodles go to a higher level.

Let consumers enjoy better and healthier rice noodles. Color separators are widely used in grain, food, pigment chemical and other industries. With the continuous improvement of color separator technology in China, many industrial color separators such as plastic color separators, ore color separators and glass color separators have also been developed and put into market use in recent years. The application market of color sorter is becoming wider and wider, but users also encounter more and more problems when using color sorter for processing and production. Aflatoxin in rice does great harm.

Generally, when rice is harvested in the rainy season, the drying of rice becomes a headache for farmers. The harvested rice is stored before it is dried. The rice is breathing all the time. The respiration releases the energy stored in the organic matter, and some of the energy is distributed in the form of heat. The newly harvested seeds contain a large amount of water, with more vigorous respiration and more heat generation. They are stacked together, and the heat cannot be released. In addition, the seeds are often exposed to typhoons and heavy rains, so it is inconvenient to spread out in time to dry, and the rice may sprout or become moldy and rotted.