Device and method for separating bulk materials

Details Device and method for separating bulk materials Device and method for separating bulk materials

B - Operations, Transporting

07

C

B07C 5/34 (2006.01) G01N 23/04 (2006.01)

Patent

CA 2531172

The invention relates to a device and method for separating bulk materials with the aid of a blow-out device provided with blow-out nozzles arranged on a fall section which is disposed downstream from a conveyor belt (20). The blow- out nozzles are controlled by computer-assisted evaluation means according to sensor results of radiation which penetrates the flow of bulk goods on the conveyor belt, is emitted from an x-ray source and which is captured in sensor means (10). The x-ray radiation, which passes through the particles of the bulk materials, is filtered into at least two spectra of differing energy ranges before the radiation is captured with local resolution, with the aid of at least one sensor means (10), which is integrated within an energy range.

L'invention concerne un dispositif et un procédé pour séparer des matières en vrac au moyen d'un dispositif de soufflage comportant des buses de soufflage disposées sur une section de chute située en aval d'une bande transporteuse (20). Les buses de soufflage sont commandées par des moyens d'évaluation assistés par ordinateur, en fonction des résultats de détection d'un rayonnement capté dans des moyens de détection (10), émis par une source de rayons X et traversant le flux de matières en vrac sur la bande transporteuse. Des filtres assurent le filtrage des rayons X ayant traversé les particules de matières en vrac en au moins deux spectres de différentes plages énergétiques, avant que les rayons soient captés, avec une résolution spatiale, par au moins un moyen de détection (10) intégré sur une plage énergétique prédéterminée.

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