用AI解决矿物加工中的不确定性,提升经济效益。
AI-Driven Optimization under Uncertainty for Mineral Processing Operations
- 将矿物加工建模为部分可观测马尔可夫决策过程(POMDP),融合信息获取与优化。
- 在模拟浮选单元中,显著优于传统方法,提升净现值(NPV)。
- 适用于实验室实验设计与工业运行优化,无需额外硬件。
全球矿物加工能力亟需快速扩展,以满足清洁能源技术对关键矿产的需求。然而,原料波动与工艺动态复杂性导致处理效率受限于不确定性。本文提出一种基于人工智能的优化方法,将矿物加工建模为部分可观测马尔可夫决策过程(POMDP),在模拟的简化浮选单元上验证其应对原料与模型双重不确定性、优化操作的能力。通过整合信息获取(即不确定性降低)与过程优化,该方法在最大化净现值(NPV)等综合目标上,表现出持续优于传统方法的潜力。本研究为该不确定性优化方法提供了一个数学与计算框架,未来可应用于实验室实验设计及工业级矿物加工流程优化,无需额外硬件投入。
原文摘要 · Abstract (English)
The global capacity for mineral processing must expand rapidly to meet the demand for critical minerals, which are essential for building the clean energy technologies necessary to mitigate climate change. However, the efficiency of mineral processing is severely limited by uncertainty, which arises from both the variability of feedstock and the complexity of process dynamics. To optimize mineral processing circuits under uncertainty, we introduce an AI-driven approach that formulates mineral processing as a Partially Observable Markov Decision Process (POMDP). We demonstrate the capabilities of this approach in handling both feedstock uncertainty and process model uncertainty to optimize the operation of a simulated, simplified flotation cell as an example. We show that by integrating the process of information gathering (i.e., uncertainty reduction) and process optimization, this approach has the potential to consistently perform better than traditional approaches at maximizing an overall objective, such as net present value (NPV). Our methodological demonstration of this optimization-under-uncertainty approach for a synthetic case provides a mathematical and computational framework for later real-world application, with the potential to improve both the laboratory-scale design of experiments and industrial-scale operation of mineral processing circuits without any additional hardware.
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