Coordinated optimization setting of reagent dosages in roughing-scavenging process of antimony flotation

• Published in: Journal of Central South University Vol. 25; no. 1; pp. 95 - 106
• Main Authors: Cao, Bin-fang, Xie, Yong-fang, Gui, Wei-hua, Yang, Chun-hua, Li, Jian-qi
• Format: Journal Article
• Language: English
• Published: Changsha Central South University 01.01.2018; Springer Nature B.V
• Subjects: Antimony; Computer simulation; Discriminant analysis; Dosage; Engineering; Flotation; Mathematical analysis; Metallic Materials; Optimization; Reasoning; Scavenging; Variation; coordinated optimization; 泡沫浮选; 图像特征; optimization setting; 协调优化; 优化控制; froth flotation; image features
• ISSN: 2095-2899; 2227-5223
• DOI: 10.1007/s11771-018-3720-0

Considering the influence of reagent adjustment in different flotation bank on the final production index and the difficulty of establishing an effective mathematical model, a coordinated optimization method for dosage reagent based on key characteristics variation tendency and case-based reasoning is proposed. On the basis of the expert reagent regulation method in antimony flotation process, the reagent dosage pre-setting model of the roughing–scavenging bank is constructed based on case-based reasoning. Then, the sensitivity index is used to calculate the key features of reagent dosage. The reagent dosage compensation model is constructed based on the variation tendency of the key features in the roughing and scavenging process. At last, the prediction model is used to finish the classification and discriminant analysis. The simulation results and industrial experiment in antimony flotation process show that the proposed method reduces fluctuation of the tailings indicators and the cost of reagent dosage. It can lay a foundation for optimizing the whole process of flotation.