A research on tailings reprocessing from Da-hongshan
The tailings in Da hongshan contains 14.56% iron, which mostly in form as hematite, and another iron in form as magnetite, maghemtite or siderite, this part just accounting 2.96%.The main gangue minerals in the tailings are 48.47% quartz and dolomite, 8.31% mica, 1.05% chlorite.According to particle size analysis, amount of iron size is enriched in +0.037mm~-0.074mm, +0.010mm~-0.019mm and-0.010mm, its distribution is 24.96%, 14.14% and 36.96% respectively.This particle researched its mineralogy then discuss a feasible flow-sheet to recycle the iron in tailings by several mineral processing tests.Finally find that magnetic-gravity separation is a useful method.The test conditions are: magnetic field strength is 0.90T in roughing separation and 0.97T in scavenging separation.The hang and vibrate of cone concentrator is used for gravity separation, its vibration frequency is 385rev/min with rotation period of the vibrate is 227.5sec/tum.The grade of obtained concentrating and middlings is 54.15%, 57.13% respectively, with recovery 28.99%, 1.00% respectively.
iron tailings magnetic-gravity separation hang and vibrate of cone concentrator
Jie Liu Bo Yang Qing Li Tao He Lin LU
Faculty of Land Resource Engineering,Kunming University of Science and Technology,Kunming 650093,China
国际会议
香港
英文
221-224
2013-06-25（万方平台首次上网日期，不代表论文的发表时间）