Benchmarking electricity use of deep-level mines

C Cilliers - 2016 - repository.nwu.ac.za
Electricity consumption, and the cost thereof, has become a large contributor to operating
costs in deep-level mining in South Africa. Up to 60% of electricity used on deep-level mines …

Sequential multi-scale modelling of mineral processing operations, with application to flotation cells

MP Schwarz, PTL Koh, DI Verrelli, Y Feng - Minerals Engineering, 2016 - Elsevier
Processing of minerals and metals involves phenomena functioning over a wide range of
length scales. Equipment is generally large in order to process the required large flow rates …

Cost savings on mine dewatering pumps by reducing preparation-and comeback loads

C Cilliers, L Van der Zee… - … Conference on the …, 2014 - ieeexplore.ieee.org
With the introduction of a time-of-use (TOU) tariff structure by Eskom, the implementation of
projects that shift load from peak TOU times to times of the day when electrical energy is less …

PIV measurement and CFD simulation of liquid-liquid flow of a settler in rare earths solvent extraction mixer-settler

S Ye, Q Tang, Y Wang, W Fei - International Journal of Heat and Fluid Flow, 2016 - Elsevier
Mixer settler is widely applied in solvent extraction, especially in hydrometallurgy and rare
earth element separation. The study and development of the settlers are to achieve clean …

Maintenance procedures on DSM pumping projects to improve sustainability

HL Grobbelaar - 2015 - repository.nwu.ac.za
Effective dewatering and refrigeration are crucial in mining. Cascading dewatering systems,
which are common in deep gold mines, are very energy intensive. These systems present …

A zero-wastage approach to benchmark energy efficiency on platinum mines

R Marais - 2024 - repository.nwu.ac.za
The South African mining sector encompasses some of the largest mines in the world. These
mines make use of high energy-consuming systems such as compressed air, ventilation …

[PDF][PDF] P507-煤油体系物性测量及其在澄清槽内的CFD 模拟

叶思施, 唐巧, 乔军帅, 王运东 - 化工学报, 2016 - researchgate.net
体系的界面张力对稀土萃取分离过程的澄清分相有着重要的影响. 采用悬滴技术分别测量了不同
P507-煤油体系与水以及不同稀土酸溶液在常温常压下的界面张力, 采用旋转黏度计对不同P507 …

Flow mapping of full scale solvent extraction settlers using pulsed Doppler UVP technique

K Mohanarangam, W Yang, KR Barnard… - Chemical Engineering …, 2013 - Elsevier
Details behind the experimental technique of ultrasonic velocity profiling (UVP) to obtain in
situ velocity measurements of both aqueous and organic phases in commercial solvent …

Structural optimization of a settler via CFD simulation in a mixer-settler

S Ye, Q Tang, Y Wang, W Fei - Chinese Journal of Chemical Engineering, 2020 - Elsevier
This work is aimed at optimizing a settler structure in a mixer-settler. Two different aspects
have been considered. Firstly, the flow characteristics of a settler have been examined by …

Optimal utilization of a three-chamber pipe feeder system

C Momberg - 2018 - repository.nwu.ac.za
South African gold production is decreasing year-on-year. This can be attributed to
numerous challenges faced by the gold mining industry. One of these challenges is high …