METHOD OF SEPARATION OF THE MINERALS AND THE DEVICE FOR THE METHOD REALIZATION Russian patent published in 2007 - IPC B07C5/342 G01N21/65 

FIELD: mining industry; minerals dressing and grading.

SUBSTANCE: the invention is pertaining to the field of upgrading and grading of minerals and may be used at dressing of the diamond-bearing ores and quality grading of the diamonds. The method provides for the optical rays irradiation of the minerals, registration of the scattered radiation in two spectral bands of the determined width, one of which contains the line of the Raman effect, the second band does not contain the line of the Raman effect, but envelops the first band from two sides, comparison of the signals in these two bands, identification and separation of the in compliance with the results of this comparison, in which the width of the spectral bands is regulated according to the condition: ▵ν₁=ν₀±δ,_{▵ν2= ν0±2δ-▵ν1, where: ▵ν1 - the bandwidth of the spectrum containing the line of the Raman effect;▵ν2 - the bandwidth of the spectrum, which does not contain the line of the Raman effect, but enveloping the first band from two sides; ν0 - the frequency of the maximum of the line of the Raman effect; δ - the band of the a frequencies of the selected line in the Raman effect spectrum. The device consists of: the storage hopper; the feeding mechanism; the source of the optical radiation; the inlet slit; the convergent lens; the dispersing component; the measuring channel with the outlet slit of the determined width, which outer surface is reflective; the reference channel receiving the light flux reflected from the outer surface of the exit slit of the measuring channel supplied with the outlet slit; imagers; the electronic unit; the executive actuating mechanism; recipients of the concentrate product and the tailings. At that the slits of the reference channel and the measuring channel are arranged coaxially and made adjustable. The technical result of the invention is the increased selectivity of the separation due to the more exact singling out of the Raman effect from the background noise.}

EFFECT: the invention ensures the increased selectivity of the separation due to the more exact singling out of the Raman effect from the background noise.

3 cl, 5 dwg