Particle motion observed inside a laboratory-scale Knelson Concentrator using positron emission particle tracking

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Standard

Particle motion observed inside a laboratory-scale Knelson Concentrator using positron emission particle tracking. / Boucher, Darryel; Langlois, Raymond; Waters, Kristian; Rowson, Neil.

IMPC 2014 - 27th International Mineral Processing Congress. Gecamin, 2014.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Harvard

Boucher, D, Langlois, R, Waters, K & Rowson, N 2014, Particle motion observed inside a laboratory-scale Knelson Concentrator using positron emission particle tracking. in IMPC 2014 - 27th International Mineral Processing Congress. Gecamin, 27th International Mineral Processing Congress, IMPC 2014, Santiago, Chile, 20/10/14.

APA

Boucher, D., Langlois, R., Waters, K., & Rowson, N. (2014). Particle motion observed inside a laboratory-scale Knelson Concentrator using positron emission particle tracking. In IMPC 2014 - 27th International Mineral Processing Congress Gecamin.

Vancouver

Boucher D, Langlois R, Waters K, Rowson N. Particle motion observed inside a laboratory-scale Knelson Concentrator using positron emission particle tracking. In IMPC 2014 - 27th International Mineral Processing Congress. Gecamin. 2014

Author

Boucher, Darryel ; Langlois, Raymond ; Waters, Kristian ; Rowson, Neil. / Particle motion observed inside a laboratory-scale Knelson Concentrator using positron emission particle tracking. IMPC 2014 - 27th International Mineral Processing Congress. Gecamin, 2014.

Bibtex

@inproceedings{40928088ab2e4d2388798eabe14738a2,
title = "Particle motion observed inside a laboratory-scale Knelson Concentrator using positron emission particle tracking",
abstract = "The Knelson Concentrator is a centrifugal gravity concentrator composed of a high speed rotating bowl into which a mineral slurry is fed. The rotational motion creates a centrifugal acceleration up to an equivalent of 200 G. Under this acceleration, particles enter fluidised riffles along the side of the bowl, with the fluidisation allowing for the substitution of dense material for less dense. The separation mechanism is not fully understood and questions remain on the optimal residence time, slurry feed parameters and bowl surface profile to achieve a better separation. The positron emission particle tracking (PEPT) technique has been applied to record the motion of a -1700+1180 μm particle of a quartz-gold matrix, labelled with 18F radioisotope while it undergoes concentration inside a 3{"} laboratory scale Knelson Concentrator (KC-MD3) operated at 60 G. The slurry used was composed of quartz and magnetite. Particle trajectories during the first stage of the concentration process where the heavier particles centrifuge through the increasingly dense slurry towards the riffles of the bowl are shown with respect to time. This work reveals new information on particle motion inside the Knelson Concentrator and the results will be used for validation of developed separation model as well as optimisation of a centrifugal concentrator's performance.",
author = "Darryel Boucher and Raymond Langlois and Kristian Waters and Neil Rowson",
year = "2014",
language = "English",
booktitle = "IMPC 2014 - 27th International Mineral Processing Congress",
publisher = "Gecamin",
note = "27th International Mineral Processing Congress, IMPC 2014 ; Conference date: 20-10-2014 Through 24-10-2014",

}

RIS

TY - GEN

T1 - Particle motion observed inside a laboratory-scale Knelson Concentrator using positron emission particle tracking

AU - Boucher, Darryel

AU - Langlois, Raymond

AU - Waters, Kristian

AU - Rowson, Neil

PY - 2014

Y1 - 2014

N2 - The Knelson Concentrator is a centrifugal gravity concentrator composed of a high speed rotating bowl into which a mineral slurry is fed. The rotational motion creates a centrifugal acceleration up to an equivalent of 200 G. Under this acceleration, particles enter fluidised riffles along the side of the bowl, with the fluidisation allowing for the substitution of dense material for less dense. The separation mechanism is not fully understood and questions remain on the optimal residence time, slurry feed parameters and bowl surface profile to achieve a better separation. The positron emission particle tracking (PEPT) technique has been applied to record the motion of a -1700+1180 μm particle of a quartz-gold matrix, labelled with 18F radioisotope while it undergoes concentration inside a 3" laboratory scale Knelson Concentrator (KC-MD3) operated at 60 G. The slurry used was composed of quartz and magnetite. Particle trajectories during the first stage of the concentration process where the heavier particles centrifuge through the increasingly dense slurry towards the riffles of the bowl are shown with respect to time. This work reveals new information on particle motion inside the Knelson Concentrator and the results will be used for validation of developed separation model as well as optimisation of a centrifugal concentrator's performance.

AB - The Knelson Concentrator is a centrifugal gravity concentrator composed of a high speed rotating bowl into which a mineral slurry is fed. The rotational motion creates a centrifugal acceleration up to an equivalent of 200 G. Under this acceleration, particles enter fluidised riffles along the side of the bowl, with the fluidisation allowing for the substitution of dense material for less dense. The separation mechanism is not fully understood and questions remain on the optimal residence time, slurry feed parameters and bowl surface profile to achieve a better separation. The positron emission particle tracking (PEPT) technique has been applied to record the motion of a -1700+1180 μm particle of a quartz-gold matrix, labelled with 18F radioisotope while it undergoes concentration inside a 3" laboratory scale Knelson Concentrator (KC-MD3) operated at 60 G. The slurry used was composed of quartz and magnetite. Particle trajectories during the first stage of the concentration process where the heavier particles centrifuge through the increasingly dense slurry towards the riffles of the bowl are shown with respect to time. This work reveals new information on particle motion inside the Knelson Concentrator and the results will be used for validation of developed separation model as well as optimisation of a centrifugal concentrator's performance.

UR - http://www.scopus.com/inward/record.url?scp=84938864107&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:84938864107

BT - IMPC 2014 - 27th International Mineral Processing Congress

PB - Gecamin

T2 - 27th International Mineral Processing Congress, IMPC 2014

Y2 - 20 October 2014 through 24 October 2014

ER -