| With the steady development of economic and social development, human being’s demand for gold is increasing, rational and efficient use of limited gold mineral resources become an inevitable choice for the gold production process. Hydrometallurgical technology has important significance for gold production. In order to ensure the full economic benefits of hydrometallurgical processes, hydrometallurgical processes running at optimum is particularly important. It has an important theoretical and practical significance to achieve full operational status evaluation in hydrometallurgical process, and reason trace for a non-optimal state when in a non-optimal. This two steps will eventually improve production efficiency, and improve the competitiveness of enterprises.Evaluation of the production process involves a number of ways, such as the fuzzy comprehensive evaluation, method based on gray correlation analysis, principal component analysis, case-based reasoning methods, neural networks, and Fisher discriminant analysis methods. This thesis uses case-based reasoning method, and compared with other evaluation methods, evaluation of case-based reasoning method is very fast, and is included in the evaluation process of reasoning and inductive learning process. So it has more practical application significance.Through in-depth analysis of the impact of high copper wet metallurgical processes critical factor, this thesis summed up the impact of the production process running critical process variables, and to determine the operational status of production processes based on the evaluation of the process variables. Based on AHP, the high copper hydrometallurgical process can be divided into the target layer, layer projects, subprojects and index, and can determine the weight of each layer of the evaluation. It is the foundation of the evaluation process for the comprehensive implementation. And establishing a running evaluation model of case-based reasoning. The results of case-based reasoning process can determine the operational status. For non-optimal operating state, the thesis presents the non-optimal reasons trace method. Finally, the simulation results demonstrate the effectiveness of the methods. |
