2014-Sustainable Industrial Processing Summit
SIPS 2014 Volume 2: Mineral Processing
| Editors: | Kongoli F |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2014 |
| Pages: | 446 pages |
| ISBN: | 978-1-987820-04-1 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Inner lining degradation in ball mills operating with phosphate rock
Andre Carlos Silva1; Elenice Maria Schons Silva1; Tulyo Maia1;1UNIVERSIDADE FEDERAL DE GOIAS, Catalao, Brazil;
Type of Paper: Regular
Id Paper: 26
Topic: 2
Abstract:
So far, milling has been an area that has stood out as one of the biggest costs in mineral processing industry. The inner lining of the mills has been taking greater prominence due to its direct influence on the grinding efficiency and the high aggregate cost related to its operation time. Once the lining attrition is not uniform, the monitoring of the lining attrition of the ball mill (SAG 4.87 x 6.09 m) of Vale Fertilizantes S.A. Catalao-GO Unit Company was performed. The mill works with phosphate ore and the monitoring was carried out using a practical device aiming to determine the behavior of lining attrition along the entire length of the mill, from the feed to the discharge, and the profile variation in a single lining plate.
It was observed that the lining attrition was not uniform both along the mill and in a lining, indicating that the higher lining attrition occurs in the first and lasts 1.5 meters with very close values. At the mill feed, the specific lining attrition was equal to 0.60 g/t, in the discharge it was equal to 0.63 g/t and in the center of the mill it was around 0.55 g/t.