Patent RU-2362635-C1 (RU)
Title: Method for luminescent separation of minerals from enriched material and device for its realisation
Inventor: BYCHIN VITALIJ GAVRILOVICH
IPC: B07C5/346
Filed: 2007-12-25
Granted: 2009-07-27
Abstract: FIELD: technological processes. 
     SUBSTANCE: inventions are related to the field of minerals enrichment, namely to methods for separation of enriched materials, which uses luminescence of extracted mineral that occurs under effect of exciting radiation. According to suggested invention in method for luminescent separation of minerals from enriched materials, multiple signals of enriched material luminescence are registered, at that registration of enriched material luminescence signals is carried out in actual time scale at the moment of enriched material presence in zone of radiation and/or detection with frequency of measurement of current instantaneous values of this signal sufficient for obtainment of statistically valid data selection for the period of material presence in this zone. Then out of row of the last obtained current instantaneous values in actual time scale two time-adjacent data arrays are generated, being installed serially one after another and continuously updated with the periodicity of not more than time of enriched material presence in zone of its radiation and/or detection. The first array of data from specified row by duration is limited on top by time comparable with the time of enriched material presence in zone of radiation and/or detection. Duration of the second data array exceeds duration of the first one at least twice, then by ratio of parametres derivative from current instantaneous values of luminescence signals of specified arrays, current criterion of enriched material separation is identified, and mineral is extracted from enriched material provided that specified current criterion of separation exceeds specified threshold. Method is realised with the help of device that is additionally equipped with unit for processing, storage and display of information in actual time scale with data provision on current criterion of separation, quality and amount of detected minerals, shape of luminescent signals at the moment of its passing in zone of radiation and/or detection. As programmable controller, device comprises programmable controller of actual time arranged with functions of registration in time of specified information in the form of multiple luminescence signals of enriched material with specified frequency of measurements of current instantaneous values of this signal sufficient to provide statistically valid selection of data from the time of enriched material presence in zone of radiation and/or detection, and also with the possibility to determine current criterion of separation and command generation to actuating mechanism. Specified programmable controller is equipped with single inlet and two outlets, and analog-digital converter ADC - two outlets and single inlet. System of communication "inlet-outlet" of structural elements is arranged in the following manner: facility for registration of luminescence signal is connected to the first inlet of ADC, and source of excitation radiation is connected to the second inlet of ADC, outlet of ADC is connected to inlet of programmable controller, the first outlet of programmable controller is connected to the inlet of unit for processing, storage and display of information, and the second outlet of programmable controller - to inlet of actuating mechanism. 
     EFFECT: increased efficiency and selectiveness of enriched material separation. 
     12 cl, 5 dwg, 1 tbl, 1 ex