Prediction of the metallurgical performances of a batch flotation system by image analysis and neural networks
It is now generally accepted that froth appearance is a good indicative of the flotation performance. In this paper, the relationship between the process conditions and the froth features as well as the process performance in the batch flotation of a copper sulfide ore is discussed and modeled. Flot...
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| Format: | Article |
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Pergamon Press
2014
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| _version_ | 1825948558976614400 |
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| author | Jahedsaravani, Ali Marhaban, Mohammad Hamiruce Massinaei, Mohammad |
| author_facet | Jahedsaravani, Ali Marhaban, Mohammad Hamiruce Massinaei, Mohammad |
| author_sort | Jahedsaravani, Ali |
| collection | UPM |
| description | It is now generally accepted that froth appearance is a good indicative of the flotation performance. In this paper, the relationship between the process conditions and the froth features as well as the process performance in the batch flotation of a copper sulfide ore is discussed and modeled. Flotation experiments were conducted at a wide range of operating conditions (i.e. gas flow rate, slurry solids%, frother/collector dosage and pH) and the froth features (i.e. bubble size, froth velocity, froth color and froth stability) along with the metallurgical performances (i.e. copper/mass/water recoveries and concentrate grade) were determined for each run. The relationships between the froth characteristics and performance parameters were successfully modeled using the neural networks. The performance of the developed models was evaluated by the correlation coefficient (R) and the root mean square error (RMSE). The results indicated that the copper recovery (RMSE = 2.9; R = 0.9), concentrate grade (RMSE = 1.07; R = 0.92), mass recovery (RMSE = 1.94; R = 0.94) and water recovery (RMSE = 3.07; R = 0.95) can be accurately predicted from the extracted surface froth features, which is of central importance for control purposes. |
| first_indexed | 2024-03-06T08:30:57Z |
| format | Article |
| id | upm.eprints-34995 |
| institution | Universiti Putra Malaysia |
| last_indexed | 2024-03-06T08:30:57Z |
| publishDate | 2014 |
| publisher | Pergamon Press |
| record_format | dspace |
| spelling | upm.eprints-349952015-12-25T08:51:48Z http://psasir.upm.edu.my/id/eprint/34995/ Prediction of the metallurgical performances of a batch flotation system by image analysis and neural networks Jahedsaravani, Ali Marhaban, Mohammad Hamiruce Massinaei, Mohammad It is now generally accepted that froth appearance is a good indicative of the flotation performance. In this paper, the relationship between the process conditions and the froth features as well as the process performance in the batch flotation of a copper sulfide ore is discussed and modeled. Flotation experiments were conducted at a wide range of operating conditions (i.e. gas flow rate, slurry solids%, frother/collector dosage and pH) and the froth features (i.e. bubble size, froth velocity, froth color and froth stability) along with the metallurgical performances (i.e. copper/mass/water recoveries and concentrate grade) were determined for each run. The relationships between the froth characteristics and performance parameters were successfully modeled using the neural networks. The performance of the developed models was evaluated by the correlation coefficient (R) and the root mean square error (RMSE). The results indicated that the copper recovery (RMSE = 2.9; R = 0.9), concentrate grade (RMSE = 1.07; R = 0.92), mass recovery (RMSE = 1.94; R = 0.94) and water recovery (RMSE = 3.07; R = 0.95) can be accurately predicted from the extracted surface froth features, which is of central importance for control purposes. Pergamon Press 2014-12 Article PeerReviewed Jahedsaravani, Ali and Marhaban, Mohammad Hamiruce and Massinaei, Mohammad (2014) Prediction of the metallurgical performances of a batch flotation system by image analysis and neural networks. Minerals Engineering, 69. pp. 137-145. ISSN 0892-6875; ESSN: 1872-9444 http://www.sciencedirect.com/science/article/pii/S0892687514002568 10.1016/j.mineng.2014.08.003 |
| spellingShingle | Jahedsaravani, Ali Marhaban, Mohammad Hamiruce Massinaei, Mohammad Prediction of the metallurgical performances of a batch flotation system by image analysis and neural networks |
| title | Prediction of the metallurgical performances of a batch flotation system by image analysis and neural networks |
| title_full | Prediction of the metallurgical performances of a batch flotation system by image analysis and neural networks |
| title_fullStr | Prediction of the metallurgical performances of a batch flotation system by image analysis and neural networks |
| title_full_unstemmed | Prediction of the metallurgical performances of a batch flotation system by image analysis and neural networks |
| title_short | Prediction of the metallurgical performances of a batch flotation system by image analysis and neural networks |
| title_sort | prediction of the metallurgical performances of a batch flotation system by image analysis and neural networks |
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