This invention discloses a visual sorting method and
system for photovoltaic
quartz sand, relating to the field of
visual material sorting. It includes a single-particle feeding and arrangement module for continuously and uniformly conveying photovoltaic
quartz sand material through a vibrating feed and guiding alignment mechanism, transforming the material into a stable, discrete,
equidistant, and ordered arrangement of single particles; and a capture module for acquiring multispectral images of the photovoltaic
quartz sand material with overlapping conveying path boundaries, obtaining
raw data of multidimensional
optical imaging of the material's surface and subsurface
layers. This invention, through simultaneous acquisition of multidimensional optical data from the material's surface and subsurface
layers via multispectral imaging, effectively captures subtle
impurity information that is difficult to detect using traditional methods. It can accurately identify various trace
impurity elements such as Al, Fe, Ca, Ti, Na, and K, enabling efficient separation and collection of qualified and unqualified materials, effectively improving the accuracy, efficiency, and stability of photovoltaic quartz sand sorting.