APPARATUS FOR SEPARATION OF MINERALS Russian patent published in 1998 - IPC

FIELD: mining industry; concentration of minerals by luminescence excited by roentgen radiation. SUBSTANCE: apparatus has hopper 1, conveying mechanism 2, radiation source 3, luminescence intensity measuring unit 4, comparator unit 6. The first input of comparator unit 6 is connected to unit 7 for setting threshold value of mineral luminescence intensity and its output is connected to instruction control unit 8, the output of which is connected to the actuating mechanism 9. Besides, the apparatus has also filtration unit 5 with its input connected to output of luminescence intensity measuring unit 4 and output connected to the second input of comparison unit 6. Flirtation unit 5 includes capacitor 10, resistor 11 and differential amplifier 12. Connection point of capacitor 10 and resistor 11 serves as input of filtration unit 5 and second ends of capacitor 10 and resistor 11 are connected respectively to the first and second inputs of differential amplifier 12, the output of which serves at the same time as output of filtration unit 5. EFFECT: improved efficiency of minerals separation. 1 dwg