基于ExtendSim的金矿浮选过程仿真研究

Design and Development of Simulation System for Flotation Process of a Gold Ore Based on Extend Sim

金矿浮选过程是黄金选冶的重要生产环节之一。针对金矿浮选过程参变量多、解析难及缺乏准确的机理模型等问题,以国内某金矿选矿厂浮选工艺为背景,基于Extend Sim仿真软件构建了金矿浮选过程仿真系统,对金矿浮选过程进行仿真研究。其中,该系统的仿真功能主要通过浮选相关数学模型实现,包括生产计划优化模型、金矿浮选矿量分配模型、浮选药剂量模型及生产指标预测模型等,将这些数学模型应用于建立仿真系统,可实现对金矿浮选多个方面的模型仿真。在所开发的仿真系统上开展仿真实验研究,实验结果验证了该系统的有效性。

Flotation process is an indispensable step of gold mineral processing.Several difficulties are existed when analyzing the gold flotation process,such as the complexity of multiple parameters which have a comprehensive influence on the flotation and the lack of mechanism models related to flotation.To solve the above problems, on the background of a domestic gold ore dressing plant, a simulation system for gold flotation process was established to simulate the process of gold flotation.Before the establishment of the system, several flotation related mathematical models were established and these models includes the optimization model of production planning, the distribution model of ore quantity, the prediction model of flotation reagents dosage and the prediction models of technical indexes.Then,the simulation system was designed and the system was developed.In this part,a commercial simulation software named ExtendSim was selected as the development platform to develop the simulation system, and the development process of the system was given in this paper. Finally, simulation experiments were conducted using the simulation system and the results was compared with the actual production data.The result of the comparison demonstrates that the simulation system built here can effectively estimate the variation of technical indexes under the conditions of different operating parameters and control parameters.