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Rice color sorter: a powerful tool to improve rice quality and efficiency

In the agricultural food industry, rice color sorter is a revolutionary technology that uses photoelectric principle and image recognition technology to detect and separate individuals with abnormal color or infected with pests and diseases from a large amount of bulk rice, thus improving the overall quality and economic efficiency of rice. This technology is not only applicable to rice, but also can be widely used in other food, agricultural products, chemical ware and mineral products processing industry, which brings significant benefits to the processing industry.

Technical principle and system composition

The working principle of the rice color sorter is based on two detection methods: photoelectric and image. By calibrating the heterochromatic grains in rice according to the degree of human needs, the high-speed optical camera or color camera is used to convert the high-speed flow of rice into a black-and-white photo or color picture with 256 levels of grayscale. Defective rice exhibits different gray-scale differences from normal rice in the photographs, which are then judged by all-digital analysis devices and advanced graphic recognition technology. Finally, the driver drives the ejector to eject a high speed, short, fine beam air stream to reject the off-color particles, thus improving the quality of the rice.

The color sorter is mainly composed of four parts: feeding system, detection system, signal processing and control circuit and rejecting system. Detection system is the core of the color sorter, including light source, optical components, colorimetric plate, photoelectric detector, dust removal cooling components and shell. The light source can be infrared light, visible light or ultraviolet light, and the power is kept constant. Dust flying or accumulating in the detection area will affect the detection effect, so the combination of low-pressure continuous wind screen or regular high-pressure blowing to keep the air in .

Application scope and advantages

The application range of the rice color sorter is wide, not only limited to the rice milling and precision processing industry, but also widely used in industries such as agriculture, grain, oilseeds, chemical industry, and medicine. Especially suitable for color selection of products such as rice, tea, sesame, beans, melon seeds, raisins, millet, and wheat. Compared with manual selection, color sorters not only save labor, time, and efficiency, but also have low processing costs, significantly improving the quality, economic and social benefits of the selected products.