评估粗颗粒浮选性能的新方法 第一部分--关于浮选反应的解卷积

IF 4.9 2区 工程技术 Q1 ENGINEERING, CHEMICAL Minerals Engineering Pub Date : 2024-09-23 DOI:10.1016/j.mineng.2024.109007
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引用次数: 0

摘要

Crompton 等人(2023 年)开发了一种描述粗颗粒浮选性能的新算法。他们使用浮选速率常数 k(按纯矿物的最大速率常数 kmax 归一化)作为表面解离分率的代表。该算法用于生成由新型设备 CoarseAIR™ 进行分离的分区曲线。这项新研究的第一部分重新探讨了以前的工作,特别是 CoarseAIR™ 稳态样品的批量机械浮选响应。对浮选反应进行了解卷积,得出了三股气流的速率常数的相应分布,进而用于生成粗颗粒浮选的分区曲线。用于生成速率常数分布的算法是通过最小化其整体曲率来实现简单的函数形式。任何粗颗粒浮选系统的稳态样本都可以用这种方法进行评估。本研究的第二部分重点关注该方法的可重复性,以及使用批量机械池模拟粗颗粒浮选,进而模拟稳态给料、产品和废渣样品的不确定性。
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A new method for assessing coarse particle flotation performance Part I − On the deconvolution of the flotation response
Crompton et al. (2023) developed a new algorithm for describing the performance of coarse particle flotation. They used the flotation rate constant, k, normalised by the maximum rate constant, kmax, for the pure mineral, as a proxy for the fractional surface liberation. The algorithm was used to produce the partition curve for a separation performed by a novel device, the CoarseAIR™. Part I of this new study re-visits the former work, particularly the batch mechanical flotation responses of the steady state samples from the CoarseAIR™. The flotation responses were deconvolved to the corresponding distributions of rate constants for the three streams, and in turn used to produce the partition curve for the coarse particle flotation. The algorithm used to produce the distribution of rate constants was driven towards a simple functional form by minimising its overall curvature. The steady state samples from any coarse particle flotation system can be assessed in this way. Part II of this study focuses on the reproducibility of the approach, and hence the uncertainty, using a batch mechanical cell to simulate the coarse particle flotation, and in turn the steady state feed, product and reject samples.
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来源期刊
Minerals Engineering
Minerals Engineering 工程技术-工程:化工
CiteScore
8.70
自引率
18.80%
发文量
519
审稿时长
81 days
期刊介绍: The purpose of the journal is to provide for the rapid publication of topical papers featuring the latest developments in the allied fields of mineral processing and extractive metallurgy. Its wide ranging coverage of research and practical (operating) topics includes physical separation methods, such as comminution, flotation concentration and dewatering, chemical methods such as bio-, hydro-, and electro-metallurgy, analytical techniques, process control, simulation and instrumentation, and mineralogical aspects of processing. Environmental issues, particularly those pertaining to sustainable development, will also be strongly covered.
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