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Prediction of Key Indices of Ilmenite Separation Based on Dry Magnetic Separator
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Jiahao XIE1, Yang LIU1, 2, Chongzhen MA1, Shanglin ZENG1, Hengfa LIU1, Shengyue QI2, Kanglong HU2, Tao HUANG3, Ling QI2, Wenke ZHANG2
Mining and Metallurgical Engineering | 2026, 46(3) : 156 - 159
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Mining and Metallurgical Engineering | 2026, 46(3): 156-159
• MINERAL PROCESSING •
Prediction of Key Indices of Ilmenite Separation Based on Dry Magnetic Separator
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Jiahao XIE1, Yang LIU1, 2, Chongzhen MA1, Shanglin ZENG1, Hengfa LIU1, Shengyue QI2, Kanglong HU2, Tao HUANG3, Ling QI2, Wenke ZHANG2
Affiliations
  • 1.Changsha Research Institute of Mining and Metallurgy Co., Ltd., Changsha 410012, Hunan, China
  • 2.Qinghai Xikuang Information Technology Co., Ltd., Xining 810000, Qinghai, China
  • 3.China Railway 19th Bureau Group Mining Investment Co., Ltd., Beijing 100161, China
doi: 10.3969/j.issn.0253-6099.2026.03.021
Outline
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Aiming at the problems of accuracy in prediction of ore grade and recovery in dry magnetic separation process, a prediction model framework integrating XGBoost and Transformer was proposed. In this method, XGBoost is used to extract local features and enhance features via leaf node information, improving the representation ability of input data. Subsequently, Transformer employs a multi-head self-attention mechanism to explore global dependencies among features and strengthen the prediction performance of the model. The prediction results of dry magnetic separation of ilmenite show that the constructed integrated model outperforms SVR, XGBoost, BP neural network and standard Transformer in terms of prediction accuracy and generalization ability.

dry magnetic separation  /  machine learning  /  forecasting model  /  grade prediction  /  recovery prediction  /  XGBoost  /  Transformer  /  feature enhancement  /  ilmenite
谢家豪, 刘洋, 马崇振, 曾尚林, 刘恒发, 祁生月, 胡康龙, 黄涛, 祁玲, 张文科. 基于干式磁选机的钛铁矿分选关键指标预测. 矿冶工程杂志, 2026 , 46 (3) : 156 -159 . DOI: 10.3969/j.issn.0253-6099.2026.03.021
Jiahao XIE, Yang LIU, Chongzhen MA, Shanglin ZENG, Hengfa LIU, Shengyue QI, Kanglong HU, Tao HUANG, Ling QI, Wenke ZHANG. Prediction of Key Indices of Ilmenite Separation Based on Dry Magnetic Separator[J]. Mining and Metallurgical Engineering, 2026 , 46 (3) : 156 -159 . DOI: 10.3969/j.issn.0253-6099.2026.03.021
Year 2026 volume 46 Issue 3
109
21
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doi: 10.3969/j.issn.0253-6099.2026.03.021
  • Receive Date:2025-11-28
  • Online Date:2026-10-08
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  • Received:2025-11-28
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Affiliations
    1.Changsha Research Institute of Mining and Metallurgy Co., Ltd., Changsha 410012, Hunan, China
    2.Qinghai Xikuang Information Technology Co., Ltd., Xining 810000, Qinghai, China
    3.China Railway 19th Bureau Group Mining Investment Co., Ltd., Beijing 100161, China
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https://castjournals.cast.org.cn/joweb/kygczz/EN/10.3969/j.issn.0253-6099.2026.03.021
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表12种不同金属材料的力学参数
科
Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)
属
Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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