Grinding & Classification Circuits

Grinding & Classification Circuits

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Will HPGR replace SAG Mill and Vertimill displace Ball Mill:
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3324
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Started by
Can we avoid the death of SAG mill and Ball mill? Will they someday be replaces HPGR and VERTIMILL in order to save energy and simplify flowsheets. Retrofit with HPGR and abbandoned the SAG/AG mills?
Last replied to by
Sometimes we need to follow laws even if are in loss or difficult to follow. Or else our business will get closed soon. Today's environmental laws are --Convert all broun technologies to green technol...
Energy efficiency and the Mining industry
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1973
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Started by Bob Mathias
There is a strong push in the research community on optimistic energy efficiency through measuring minimum energy is required for comminution and benchmarking energy efficiency of different sites. On the other hand there are people who think optimizi...
Last replied to by Paul Morrow
In conventional base metal milling throughput always trumps recovery for maximizing revenue. This has been demonstrated over and over again. TPD also trumps energy efficiency, especially when the pla...
Analyzing the Effect of Ball Size on SAG Grinding
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Started by Bob Mathias
A complex analysis at a pilot plant scale is very hard to duplicate in actual production. I'm not sure you can avoid the trial and error method. The bottom line is the kilowatt hours per ton required to achieve maximum recovery. Several SAG mills ha...
Last replied to by
Very interesting topic here. I missed your presentation at IMPC so I will take a closer look to the paper. It is strange to see opposite direction (increase or decrease ball size) to increase SAG thro...
Obtain Bond Work Index (BWi) of Antimonite/Stibnite Ore
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1741
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Started by Maya Rothman
Hi, Am I working on a Antimonite/Stibnite Ore Project (scoping) and I need Bond Work Index values. I do not have a lab not equipment at hand. What is a good estimate? Thanks
Last replied to by Maya Rothman
Thank you very much, I saw in Mintek mineral handbook it was 15.9 but confirmation was needed.
On-Stream-Analyzer to Obtain Circulating Load Calculations in Grinding Circuit
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1930
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Started by Paul Morrow
A LIBS On-Stream-Analyzer VS XRF- X-Ray OSA On-Stream-Analyzer are similar in that they are used for elemental analysis, but LIBS can measure the light elements where XRF struggles. LIBS are generally much faster in all cases, an analysis can ...
Last replied to by Paul Morrow
Compare Lebedinsky GOK and Stoilensky not entirely correct. Because 70% of the concentrate obtained LGOK 7-8 stages of magnetic separation (mineral processing plant + secondary benefication plant) and...

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