DIAMOND SEPARATION METHOD AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2022 - IPC B07C5/34 

FIELD: mechanical engineering.

SUBSTANCE: invention relates to diamond separation methods, in particular to methods for automatic sorting of ores and extraction of diamonds from diamond-containing materials, as well as to devices implementing such methods. A method and device for separating diamonds are proposed. In the claimed method, the analyzed material is transported on a conveyor belt, the analyzed material is irradiated with a beam of primary X-ray radiation, the cross section of which is smaller than the particle size of the useful material, the transmitted X-ray radiation is recorded by a position-sensitive detector after it passes through the collimator of the transmitted radiation, the intensity of the transmitted radiation is compared with the threshold value and the particles of the useful material are isolated according to the comparison results. Unlike the prototype, a point source with a slit collimator of primary radiation is used as a source of primary X-ray radiation, providing a narrow beam of primary X-ray radiation with a small angular divergence, a multi-channel collimator of transmitted radiation is used as a collimator of transmitted radiation, the cells of which are located radially relative to the point source of primary radiation, and the width of the cells is consistent with the minimum dimensions of particles of useful material, moreover, the number of cells in the collimator of the transmitted radiation is equal to the width of the conveyor belt divided by the width of the cell of the collimator of the transmitted radiation, while the front part of the collimator of the transmitted radiation is flat and located near the conveyor belt, and the rear part is curved along a radius equal to the distance from the point source of primary radiation to the position-sensitive detector, in this case, the orthogonality of the input of the transmitted radiation into the position-sensitive detector is ensured by the implementation of the surface of the position-sensitive detector with a curved radius equal to the radius of the rear part of the collimator of the transmitted radiation.

EFFECT: simplifying the design while maintaining analytical characteristics, as well as providing the ability to process the signal using a larger number of algorithms.

18 cl, 7 dwg