光选机能从大块产品中分离颜色不同的矿物。为了确定光选法的可能,研究了该矿床矿物在可见光波长范围内的反射特性。改变光源的波长和过滤试样的反射光时,测定反射率的比值。从图1可看出,改变入射光束和反射光束的波长,对反射率的比值的影响不大。这是因为白色矿块无选择地反射光束,而脉石的颜色则在黄绿色到棕褐色的较大范围内变化。 Light Sorters can separate different color minerals from bulk products. In order to determine the possibility of light-selective method, the reflection characteristics of the mineral in the visible wavelength range were studied. When changing the wavelength of the light source and filtering the reflected light of the sample, the ratio of the reflectance was measured. As can be seen from Figure 1, changing the wavelength of the incident beam and the reflected beam has little effect on the ratio of reflectivity. This is because the white nuggets reflect the beam of light indiscriminately, while the color of the gangue changes in a wide range of yellow-green to tan.