| 31. | This comprised a sequence of crushing machines and ball mills connected by conveyor belts in a steel-framed, asbestos-clad building.
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| 32. | SAG mills are essentially autogenous mills, but utilize grinding balls to aid in grinding like in a ball mill.
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| 33. | Ball mills are rather inefficient, and typically require 10 20 kW�h of electric power to make a tonne of rawmix.
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| 34. | Boddington produced 10, 000 ounces less in the latest quarter following the failure of one of its primary ball mills.
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| 35. | The grinding action employs much greater stress on the material than in a ball mill, and is therefore more efficient.
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| 36. | Only after several days of grinding in a steel ball mill or stone polisher would you get some degradation, she said.
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| 37. | The ten head battery comprised a jaw crusher, ball mill, 10 head stamper, classifiers, amalgamation plates, 6-cell Kraut flotation machine, and drier.
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| 38. | The crushed material was fed to one of two grinding circuits ( A-circuit = 3 ball mills, B-circuit = single ball mill ).
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| 39. | One main reason to ball mill as opposed to other methods is because it presses sulfur and KNO 3 into the porous charcoal.
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| 40. | The crushed material was fed to one of two grinding circuits ( A-circuit = 3 ball mills, B-circuit = single ball mill ).
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