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基于泡沫图像特征的金锑浮选入矿品位估计-控制理论与应用
32 2 Vol. 32 No. 2
2015 2 Control Theory Applications Feb. 2015
DOI: 10.7641/CTA.2015.40284
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Mineral concentration estimation of feed ore in gold and
stibium flotation based on froth image features
WU Jia, XIE Yong-fang, YANG Chun-hua , GUI Wei-hua
(School of information Science and Engineering, Central South University, Changsha Hunan 410083, China)
Abstract: The regulation of reagents heavily depends on the mineral concentration of feed ore in flotation. Since it is
difficult to measure the concentration of feed ore online, an estimator based on froth image features is developed in this
paper. At first, considering the uncertainty existing in the sample data, we develop a soft-sensor method based on kernel
principal component analysis (KPCA) and fuzzy C-means clustering-probabilistic support vector regress (FCM--PSVR).
Then, estimators for the gold and stibium concentration of feed ore and concentrate are built. Finally, the output of the
estimators of feed ore is evaluated based on expert rules. The estimator has been validated in the gold and stibium froth
flotation, and it plays an important role in guiding the reagent addition in gold and stibium flotation.
Key words: flotation; uncertainty; support vector machine; fuzzy cluster
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