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Influence of Feed Dilution on the Performance of Tailing Thickener in Aftab Iron Plant | ||
| نشریه مهندسی منابع معدنی | ||
| مقالات آماده انتشار، پذیرفته شده، انتشار آنلاین از تاریخ 14 آبان 1402 | ||
| نوع مقاله: علمی-پژوهشی انگلیسی | ||
| شناسه دیجیتال (DOI): 10.30479/jmre.2023.18943.1648 | ||
| نویسندگان | ||
| سعید زارع1؛ رحمان احمدی* 2؛ غلامرضا کریمی3؛ صحاب شکوهی4 | ||
| 1دانشگاه شهید باهنر کرمان | ||
| 2عضو محترم هیات علمی گروه مهندسی معدن دانشگاه بین المللی امام خمینی ره | ||
| 3عضو هیات علمی گروه مهندسی معدن، دانشگاه بین المللی امام خمینی (ره) | ||
| 4مدیر فنی شرکت سنگ آهن آفتاب | ||
| تاریخ دریافت: 27 خرداد 1402، تاریخ بازنگری: 14 آبان 1402، تاریخ پذیرش: 05 آبان 1402 | ||
| چکیده | ||
| Thickeners are the most common dewatering equipment for recovering the water in the most mineral processing plants. The Aftab iron ore plant is one of the smallest iron concentrate producers in Iran, located in the Khorasan province. In this study, the plant tailing thickener was audited for 60 days. The audit showed high flocculant consumption and high turbidity of thickener overflows. However, low water recovery was the major thickener problem. Additionally, it has been shown that the high solid concentration of the thickener feed, uncompleted flocculant conditioning, thickener underflow pipeline system, and operations strategy were the main reasons for the thickener’s low performance. Therefore, the feed solids concentration was decreased by using water pumping to the feed flow. Also, flocculant type, concentration, dosage, and conditioning time were modified. Then, the thickener underflow pipeline system was modified to transfer high solid content pulps without choking. Finally, the relation between thickener electromotor ampere draw and thickener underflow solids’ concentration was determined and used as the operation strategy. The modifications increased the thickener underflow solid’s concentration about 17%, decreased flocculant dosage around 34%, and also the turbidity of thickener overflow water decreased from 3% to 200 ppm in critical conditions. | ||
| کلیدواژه‌ها | ||
| فلوکولانت؛ باطله آهن؛ رقت پالپ؛ تیکنر؛ خط جریان | ||
| عنوان مقاله [English] | ||
| Influence of Feed Dilution on the Performance of Tailing Thickener in Aftab Iron Plant | ||
| نویسندگان [English] | ||
| Saeid Zare1؛ Gholamreza Karimi3؛ Sahab Shookohi4؛ | ||
| 1Shahid Bahonar University of Kerman, Kerman, Iran | ||
| 3Assistant Professor of mineral processing, Mining Engineering Department, Imam Khomeini International University, Qazvin, Iran. | ||
| 4Technical manager of Aftab company, Tabas, Iran | ||
| چکیده [English] | ||
| Thickeners are the most common dewatering equipment for recovering the water in the most mineral processing plants. The Aftab iron ore plant is one of the smallest iron concentrate producers in Iran, located in the Khorasan province. In this study, the Aftab plant tailing thickener was audited for 50 days. The audit showed high flocculant consumption and high turbidity of thickener overflows. However, low water recovery was the major thickener problem. Additionally, it has been shown that the high solid concentration of the thickener feed, uncompleted flocculant conditioning, thickener underflow pipeline system, and operations strategy were the main reasons of the thickener’s low performance. Therefore, the feed solids concentration was decreased by using water pumping to the feed flow. Also, flocculant type, concentration, dosage, and conditioning time were modified. Then, the thickener underflow pipeline system was modified to transfer high solid content pulps without choking. Finally, the relation between thickener electromotor ampere draw and thickener underflow solids’ concentration was determined and used as the operation strategy. The modifications increased the thickener underflow solid’s concentration about 17%, decreased flocculant dosage around 34%, and also the turbidity of thickener overflow water was decrease dramatically. | ||
| کلیدواژه‌ها [English] | ||
| Flocculant, Tailing, Slurry dilution, Thickener, Iron | ||
| مراجع | ||
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آمار تعداد مشاهده مقاله: 56 |
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