MINERAL RAW MATERIAL SEPARATING APPARATUS Russian patent published in 2003 - IPC

FIELD: ore concentration equipment, in particular, radiometric ore separating equipment. SUBSTANCE: apparatus has bin, transportation mechanism, radiation source, air luminescence intensity measuring unit, air and mineral luminescence intensity measuring unit connected to first input of mineral luminescence intensity measuring unit, whose output is connected to first input of comparison unit and to input of mineral spatial arrangement determining unit, whose output is connected to input of gating unit, whose output is connected to second input of comparison unit, whose third input is connected to mineral luminescence intensity boundary value setter and output is connected to command generating unit, whose output is connected to actuating mechanism. Apparatus is further provided with unit for widening dynamic range of mineral luminescence signal. Input of said unit is connected to output of air luminescence intensity measuring unit and output is connected to second input of mineral luminescence intensity measuring unit, whose output is connected to input of air luminescence intensity measuring unit. EFFECT: increased efficiency in ore separation by widened dynamic range of mineral luminescence signal. 1 dwg