The invention discloses a near-infrared multispectral sorting device in the field of sorting equipment, which comprises multiple light sources, a material conveying mechanism, optical signal receivers arranged on one or both sides of materials, and an image processing and display device for signal analysis. The light sources are symmetrically distributed on both sides of the optical receivers. The device acquires real-time near-infrared multispectral images of materials and identifies various plastic types by combining multi-band spectral features with chemometric algorithms. It effectively improves the recognition accuracy of plastics with similar properties and is widely applicable to waste plastic recycling, food detection and mildew sorting, possessing important practical value.

Area Code: CN

Application Number: CN201710890985.3