New Particle Size Analysis System for Mineral Slurries

Kongas, Matti; Saloheimo, Kari; Pekkarinen, H.; Turunen, Janne

doi:10.1016/s1474-6670(17)37648-6

Cited by 10 publications

(7 citation statements)

References 1 publication

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“…The classification is carried out using Derric screens with a 0.8 mm aperture. The mills have variable speed drives, which can be used to control the product particle size distribution, which is measured from the screen underflow using the laser diffraction based PSI500 Particle Size Analyzer (Kongas et al, 2003). The size range of 1…500 µm is measured to a precision of 1-2 %.…”

Section: Description Of the Kemi Concentrator And The Grinding Circuitmentioning

confidence: 99%

Integrated Approach to Monitoring and Control of Mineral Grinding Processes

Remes

Karesvuori

Pekkarinen

et al. 2006

IFAC Proceedings Volumes

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To enhance the operation of mineral grinding processes, a greater number of monitoring services and control schemes are nowadays being offered by the equipment manufacturers. In this paper an integrated approach to grinding process monitoring and control is formulated and the components of the integrated automation for typical grinding processes are proposed. Furthermore, the benefits of the process monitoring services are studied on the basis of a specific case study -the Outokumpu Chrome Kemi concentrator. Finally, the results are discussed and a new control scheme is outlined.

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Section: Description Of the Kemi Concentrator And The Grinding Circuitmentioning

confidence: 99%

Integrated Approach to Monitoring and Control of Mineral Grinding Processes

Remes

Karesvuori

Pekkarinen

et al. 2006

IFAC Proceedings Volumes

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“…It is usually the most important product quality characteristic of grinding, and it can be controlled to ensure the required selectivity and optimal recovery in downstream flotation or other stages of mineral separation. Grinding control is generally straightforward but changes in ore grindability make it necessary to use online particle size analyzers for feedback control [1]. Various measurement techniques have been used in online particle size analysis.…”

Section: Introductionmentioning

confidence: 99%

“…One of the latest measurement methods introduced in industrial online particle size analysis is laser diffraction. It has been commonly used as a laboratory analysis technique, and there are several examples of online installations in dry processes [1,2]. This paper discusses developments in laser diffraction based online particle size analysis in wet processes.…”

Section: Introductionmentioning

confidence: 99%

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Improving the Robustness of Particle Size Analysis by Multivariate Statistical Process Control

Mattila¹,

Saloheimo

Koskinen³

2007

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The robustness of online particle size analysis in wet processes is improved by applying data based modeling methods to the control of the sample preparation and measurement sequence of the particle size analyzer. The aim is to find a more accurate and reliable method of determining the end of the particle size integration period using multivariate statistical process control (MSPC).The studied approach is tested on analyzers installed at two mineral processing plant sites and validated using two validation tests. Research shows that the proposed method works with two very different slurry types. The main advantage of the adapted approach is that there are no adjustable parameters that have to be set by the user.

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“…In the mineral processing industry, the extended product concept has, for example, been applied to a particle size analyzer. (Kongas, et al 2003 andRemes, et al, 2004) …”

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confidence: 99%

Development Issues on the Life-Cycle Management of Mineral Grinding Processes and Equipment

Remes

Suontaka

Saloheimo

et al. 2005

IFAC Proceedings Volumes

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The requirements set on the performance of industrial equipment during their life-time are increasing due to the growing demand to minimize expenses and maximize production as a result of tightening global competition. The demand to optimize the equipment performance is making the ability to utilize different services during the equipment more important. Equipment performance optimization includes integration of the process and maintenance information. In this paper the life-cycle management concepts are reviewed and a general framework and a case study in the mineral processing field is presented and discussed.

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New Particle Size Analysis System for Mineral Slurries

Cited by 10 publications

References 1 publication

Integrated Approach to Monitoring and Control of Mineral Grinding Processes

Integrated Approach to Monitoring and Control of Mineral Grinding Processes

Improving the Robustness of Particle Size Analysis by Multivariate Statistical Process Control

Development Issues on the Life-Cycle Management of Mineral Grinding Processes and Equipment

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