ISSN 2594-357X
21° Simpósio de Mineração — vol. 21, num.21 (2022)
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WITH THE RECENT DEVELOPMENTS IN SENSOR DETECTORS TOGETHER WITH IMPROVED THROUGHPUT FROM THE HIGH-SPEED COMPUTING, HAVE MADE SENSOR BASED SORTING (SBS) MORE ATTRACTIVE TO APPLY TO THE MINING INDUSTRY. THE USE OF X-RAY FLUORESCENCE, X-RAY TRANSMISSION AND RADIOMETRIC SENSOR BASED SORTING CAN SELECTIVELY REMOVE GANGUE MINERALS IN DIFFERENT SIZE FRACTIONS FROM DIFFERENT MINERALS. THIS PAPER SUMMARIZES THE POTENTIAL APPLICATION OF SBS ON THREE IRON ORE SAMPLES AIMING TO INCREASE THE %FE THROUGH THE REMOVAL OF GANGUE MINERALS. PILOT PLANT TESTS WERE CARRIED OUT ON IRON ORE SAMPLES AT THREE DIFFERENT SIZE FRACTIONS WHICH CONTAINED DIFFERENT CONTENTS OF HEMATITE AND GANGUES. THE USE OF X-RAY TRANSMISSION SENSOR SHOWED IT WAS POSSIBLE TO INCREASE THE %FE FROM ~63% TO ABOVE 68% FOR PARTICLES -70+40 MM AND -40+16 MM. THE PRESENCE OF FINES ON THE FEEDS AFFECTED THE PERFORMANCE OF THE SBS X-RAYS TRANSMISSION MACHINE, ESPECIALLY FOR THE FINE -16+8 MM SAMPLE. THE MINERALOGICAL INVESTIGATION DETERMINED THE ASSOCIATION BETWEEN HEMATITE AND GANGUE MINERALS. THE DENSITY OF THE PARTICLES IN THE FEED COULD BE USED TO PREVIEW THE QUALITY OF PRODUCTS OF THE X-TRANSMISSION SORTING PROCESS. THE PRESENCE OF SCRAPS AND CONTAMINATION OF DIFFERENT MATERIALS AND SIZES CAN BE INCORPORATED INTO IRON ORE PRODUCTS ALONG THE PRODUCTION CHAIN, CAUSING SEVERAL COMPLAINTS FROM CUSTOMERS. THE APPLICATION OF SORTER TECHNOLOGY WITH AN X-RAY SENSOR CAN BE AN ALTERNATIVE FOR THE IDENTIFICATION AND REMOVAL OF SCRAPS, ACCORDING TO STUDIES UNDER DEVELOPMENT, THUS ENSURING THE SHIPMENT OF IRON ORE PRODUCTS FREE FROM SCRAPS AND CONTAMINATIONS.
WITH THE RECENT DEVELOPMENTS IN SENSOR DETECTORS TOGETHER WITH IMPROVED THROUGHPUT FROM THE HIGH-SPEED COMPUTING, HAVE MADE SENSOR BASED SORTING (SBS) MORE ATTRACTIVE TO APPLY TO THE MINING INDUSTRY. THE USE OF X-RAY FLUORESCENCE, X-RAY TRANSMISSION AND RADIOMETRIC SENSOR BASED SORTING CAN SELECTIVELY REMOVE GANGUE MINERALS IN DIFFERENT SIZE FRACTIONS FROM DIFFERENT MINERALS. THIS PAPER SUMMARIZES THE POTENTIAL APPLICATION OF SBS ON THREE IRON ORE SAMPLES AIMING TO INCREASE THE %FE THROUGH THE REMOVAL OF GANGUE MINERALS. PILOT PLANT TESTS WERE CARRIED OUT ON IRON ORE SAMPLES AT THREE DIFFERENT SIZE FRACTIONS WHICH CONTAINED DIFFERENT CONTENTS OF HEMATITE AND GANGUES. THE USE OF X-RAY TRANSMISSION SENSOR SHOWED IT WAS POSSIBLE TO INCREASE THE %FE FROM ~63% TO ABOVE 68% FOR PARTICLES -70+40 MM AND -40+16 MM. THE PRESENCE OF FINES ON THE FEEDS AFFECTED THE PERFORMANCE OF THE SBS X-RAYS TRANSMISSION MACHINE, ESPECIALLY FOR THE FINE -16+8 MM SAMPLE. THE MINERALOGICAL INVESTIGATION DETERMINED THE ASSOCIATION BETWEEN HEMATITE AND GANGUE MINERALS. THE DENSITY OF THE PARTICLES IN THE FEED COULD BE USED TO PREVIEW THE QUALITY OF PRODUCTS OF THE X-TRANSMISSION SORTING PROCESS. THE PRESENCE OF SCRAPS AND CONTAMINATION OF DIFFERENT MATERIALS AND SIZES CAN BE INCORPORATED INTO IRON ORE PRODUCTS ALONG THE PRODUCTION CHAIN, CAUSING SEVERAL COMPLAINTS FROM CUSTOMERS. THE APPLICATION OF SORTER TECHNOLOGY WITH AN X-RAY SENSOR CAN BE AN ALTERNATIVE FOR THE IDENTIFICATION AND REMOVAL OF SCRAPS, ACCORDING TO STUDIES UNDER DEVELOPMENT, THUS ENSURING THE SHIPMENT OF IRON ORE PRODUCTS FREE FROM SCRAPS AND CONTAMINATIONS.
Keywords
ore sorting, IRON ORE COARSE PARTICLES, SCRAPS, CONTAMINATIONS
ore sorting, IRON ORE COARSE PARTICLES, SCRAPS, CONTAMINATIONS
How to refer
Lima, Neymayer Pereira;
Melo, Jonathan;
Kolacz, Jacek.
EVALUATION OF ORE SORTING FOR THE IRON ORE INDUSTRY
,
p. 437-450.
In: 21° Simpósio de Mineração,
São Paulo,
2022.
ISSN: 2594-357X
, DOI 10.5151/2594-357X-35022
