Method and apparatus for identifying waste carpet using hand-held infrared spectrometer

摘要

FIELD OF THE INVENTION The present invention relates to a method and apparatus for fractionating various types of polyamide-6 and / or polyamide-66 which do not contain waste carpets after consumer use or industrial use, or which do not comprise waste carpets. We use a hand-held portable device that uses the principle of a spectrometer that can accurately and quickly identify the material of c. For this task, the spectrometer includes an infrared radiation source for irradiating the waste (carpet), a selector for selecting a plurality of predetermined discrete wavelengths, and a detection system for detecting radiation reflected within the discrete wavelengths. May be a plate having several slots that are positioned to correspond to positions in the light beam scattered according to the predetermined discrete wavelength or one of several filters selected to pass through the discrete wavelength, the choice of discrete wavelength being selected from the carpet sample. It is characterized in that it can occur before the irradiation or by selecting the discontinuous wavelength from the reflected radiation.