Patent Number: 
Section: claims

1. A multi-fractional coal sorting device, comprising:an x-ray tube, wherein the x-ray tube is in a fixed position;a first collimator attached to the x-ray tube;a second collimator attached to the x-ray tube;a first x-ray detector, wherein the first x-ray detector is in a fixed position to receive x-rays collimated by the first collimator;a second x-ray detector, wherein the second x-ray detector is in a fixed position to receive x-rays collimated by the second collimator;a first microprocessor operationally connected to the first x-ray detector;a first sized ejector operationally connected to the first microprocessor;a second microprocessor operationally connected to the second x-ray detector;a second sized ejector operationally connected to the second microprocessor;a first collection bin positioned to receive sample ejected by the first sized ejector;a second collection bin positioned to receive sample ejected by the second sized ejector;a first screen attached within the first collection bin, wherein the first screen defines a plurality of openings so that smaller sized objects may pass through the openings;a second screen attached within the second collection bin, wherein the second screen defines a plurality of openings so that smaller sized objects may pass through the openings. 2. The device of claim 1, wherein the first collection bin and the second collection bin are combined. 3. The device of claim 1, further comprising an infrared 3D imager positioned above a conveyor so that identifying characteristics of pieces of the sample on the conveyor are determined.