This paper describes a 3D cellular automaton (CA) for dynamically modelling ore piles with continuous feeding and discharging and incorporating two separate size segregation mechanisms. Stockpiles are an integral part of materials handling and storage, and their operation plays an important role in the overall performance of the mineral processing plant. Size segregation can create fluctuations and cause processing units to receive uneven feeds. However, this issue has not received enough attention. Therefore, a three-dimensional dynamic stockpile model has been developed at the Julius Kruttschnitt Mineral Research Centre (JKMRC), which can model the dynamic response of a wide-size-range stockpile. A Continuous Cellular Automata was developed, dividing the volume of the stockpile into a three-dimensional grid of cells with each cell containing an independent set of properties that are tracked throughout the simulation. Modelling size segregation during material flow was presented in Part 1. The variation in the stockpile surface profile and size distribution of the stockpile can be predicted. In this paper, the stockpile model with size segregation extends to the discharging and migration for real-time simulation. The model structure and industrial validation are discussed in this paper, which will show the application of the dynamic model, including the particle size distribution and the height variation of the stockpile. The three-dimensional dynamic stockpile model can contribute to the control of the comminution circuit because different operational strategies can be predicted using the model.

本文介绍了一种 3D 元胞自动机 (CA)，用于动态模拟连续进料和出料的矿石堆，并结合两个独立的尺寸分离机制。堆料是物料搬运和储存不可或缺的一部分，它们的运行对选矿厂的整体性能起着重要作用。尺寸分离会产生波动并导致加工单元接收不均匀的进料。然而，这个问题并没有得到足够的重视。因此，Julius Kruttschnitt 矿物研究中心 (JKMRC) 开发了三维动态堆料模型，可以模拟大尺寸堆料的动态响应。开发了连续元胞自动机，将库存体积划分为三维单元网格，每个单元包含一组独立的属性，这些属性在整个模拟过程中被跟踪。第 1 部分介绍了材料流动过程中的建模尺寸分离。可以预测堆料堆表面轮廓和尺寸分布的变化。在本文中，具有尺寸分离的堆模型扩展到放电和迁移以进行实时模拟。本文讨论了模型结构和工业验证，将展示动态模型的应用，包括颗粒尺寸分布和堆料高度变化。