Method and a system for handling sample materials, e.g. in mixing plants, for central analysis of the samples

摘要

A method and system for handling simple materials in, for example, mixing plants, for enabling a central analysis of the samples. The samples are automatically and frequently taken from outlets of silos and are brought unwrapped and successively to an automatic near infrared reflection analyzing station through an pneumatic conveyor system with substantially common type sections between the station and the single samples. Sample portions which are larger than required for analysis are removed so as to counteract the risk of contamination of the samples, with the large sample portions then being returned to the silos of origin through another pneumatic conveyor system.