کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
235321 | 465634 | 2015 | 7 صفحه PDF | دانلود رایگان |
• Milling circuit and ball size distribution models determined the make-up ball charge.
• Investigations focused on mono and binary mixture of ball sizes for make-up charge.
• The results found reccommended charging mono-sized balls in the make-up charge.
• Optimal conditions for the size and composition of make-up charge were determined.
• The conditions enable maximum production of the desired size range for flotation.
Ball size distribution is commonly used to optimise and control the quality of the mill product. A simulation model combining milling circuit and ball size distribution was used to determine the best make-up ball charge. The objective function was to find the ball mix that guarantees maximum production of the floatable size range (i.e. − 75 + 9 μm) applicable to a platinum-bearing ore.The simulated product size distributions were found to display a close match with the measured product from an operational mill. Based on the maximum production of floatable particles, the best combination of make-up ball size was determined in relation to feed flow rate, feed size distribution and ball filling.
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Journal: Powder Technology - Volume 284, November 2015, Pages 12–18