Monitoring the performance of DMS circuits using RhoVol technology

Fofana, M.; Steyn, T.

doi:10.17159/2411-9717/2019/v119n2a5

Cited by 2 publications

(7 citation statements)

References 7 publications

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“…The RhoVol machine, commercially developed by De Beers Group Technology, measures and records the mass of each particle, followed by a 3D reconstruction of its silhouette [18]. It was initially developed for analysing diamond characterizations, but was later promoted for other applications, such as coal.…”

Section: Figure 1 Classification Chart Based On Roundness Andmentioning

confidence: 99%

“…All parameters except mass were calculated directly from the 3D images. A moving funnel finds the most suitable bin, and the particle then falls into the bin [16,18].…”

Section: Figure 1 Classification Chart Based On Roundness Andmentioning

confidence: 99%

“…In the last decade, with the development of new computer technologies, the number of publications on the successful implementation of the three-dimensional (3D) imaging systems in mineral processing has been growing fast [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

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Developments and applications of 3D imaging systems in mineral processing

Nakhaei,

Jovanović

2023

J Min & Metal A Mining

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Three-dimensional (3D) surface imaging systems have gained popularity in monitoring the status and condition of separation processes by characterizing the internal and external structures of particles such as size, shape, density and composition. This review article mainly focuses on demonstrating the state of the art of 3D imaging systems in mineral processing based of the recent growth in 3D sensors. The structure of this manuscript comprises an overview of the two 3D imaging systems, including RhoVol and X-ray computed tomography, based on the basic principles. Their applications in mineral processing are then explained. By integrating with other imaging tools and the 3D printing technology, 3D surface imaging systems will play an important role in the automation and control of mineral processing in the future.

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Section: Figure 1 Classification Chart Based On Roundness Andmentioning

confidence: 99%

“…All parameters except mass were calculated directly from the 3D images. A moving funnel finds the most suitable bin, and the particle then falls into the bin [16,18].…”

Section: Figure 1 Classification Chart Based On Roundness Andmentioning

confidence: 99%

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Developments and applications of 3D imaging systems in mineral processing

Nakhaei,

Jovanović

2023

J Min & Metal A Mining

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“…The RhoVol analyser (Figure 1) can be described as a densimetric measurement system that determines the density of an ore by weighing and estimating the volumes of individual particles (Fofana and Steyn, 2018). Along with the weight and volume parameters, the RhoVol also gives information concerning particle density, size, and shape.…”

Section: The Rhovol Density Analysermentioning

confidence: 99%

“…Published work on the RhoVol is limited to a study by Fofana and Steyn (2018), who compared densimetric analysis of kimberlite material using the float-and-sink method to results from RhoVol. They obtained by the RhoVol method.…”

Section: Introductionmentioning

confidence: 99%

Assessment of coal washability data obtained via the RhoVol analyser

Stone,

Campbell,

le Roux

et al. 2023

J. S. Afr. Inst. Min. Metall.

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Float-and-sink analysis is widely used in the coal industry to obtain washability data, yielding important information about beneficiation potential and performance. This method is associated with health and environmental problems, and research into alternative densimetric methods is important. The RhoVol is a new technology developed by De Beers Group Technology South Africa (DebTech) for the image-based generation of densimetric data from ores. The analysis is done on a per-particle basis, within a size range of +3 mm -8 mm. In this paper we compare the established methods used for the float-and-sink analysis of coal with a new method using RhoVol. The aim of the study was to determine the validity of the information obtained from the RhoVol analyser by performing comparative densimetric analysis on three different coal samples. The results showed that the RhoVol method was more rapid, safe, and precise, but tended to consistently underestimate the density of the coal sample, probably due to varying coal porosity.

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Monitoring the performance of DMS circuits using RhoVol technology

Cited by 2 publications

References 7 publications

Developments and applications of 3D imaging systems in mineral processing

Developments and applications of 3D imaging systems in mineral processing

Assessment of coal washability data obtained via the RhoVol analyser

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