Crushing

Crushing

JSC AK Altynalmas engaged Esen Mining Consulting Pty Ltd (EMC) to conduct a drill-to-mill plant optimization project to determine what opportunities exist to increase the mill throughput and improve the overall mine and concentrator performance. The scope of the project included in-situ ore body cha...
06-Jan-2020
A comprehensive energy study was carried out for the Red Chris mill, which processes copper-gold ore at a rate of 30,000 tonnes per day (t/d) and is located in Northern British Columbia. The study focused on identifying opportunities for energy conservation in the semi-autogenous grinding (SAG)-ball...
06-Jan-2020
AG or SAG milling frequently becomes a bottle-neck in an operation as the generation of critical size pebbles and the subsequent required re-crushing of these results in an extra burden for the (S)AG mill in the form of a recirculating load of harder and more abrasive material. HPGRs are high capac...
06-Jan-2020
E Baawuah1, C Kelsey2, J R Kelly3, J Addai-Mensah4 and W Skinner5 Abstract Comminution continues to be the most capital intensive unit operation in mineral processing. The fundamental purpose of comminution is to liberate the valuable minerals so that they can be economically concentrated into sal...
16-Dec-2019
F.P. van der Meer Canadian Mineral Processors Conference, 23-25 January 2018, Ottawa, Canada ABSTRACT HPGRs operate in a wide array of applications in mining and minerals. These range from relatively coarse crushing of copper and gold ores at one end of the spectrum to the processing of fine iron...
28-Jun-2019
W. Conger, J.F. DuPont, R.E. McIvor, T.P. WeldumW. Conger, J.F. DuPont, R.E. McIvor, T.P. Weldum Mining Engineering, November 2018, pp. 28-37 The objective of the study conducted by the authors is to determine what media size(s) addition will maximize any given plant ball mill’s grinding efficienc...
16-Jan-2019
K MATSON, S TYRRELL AND B JACKSON 14thAusIMM Mill Operators’ Conference, 29-31 August 2018, Brisbane, Australia Australia ABSTRACT Northern Star Resources Limited Jundee Gold Mine in Western Australia operates a comminution circuit that consists of a primary crusher, 3.85 MW semi-autogenous gri...
27-Sep-2018
The transition from semi-autogenous to autogenous milling at Waihi Gold C Haines and D Bertoldi AusIMM Mill Operators Conference 2016   ABSTRACT The Waihi Gold Mine (WGM) operated by OceanaGold New Zealand Limited is a wholly owned subsidiary of the OceanaGold Corporation of Australi...
26-Apr-2017
Grinding circuit practices at Newmont A Giblett and S Hart AusIMM Mill Operators Conference 2016   ABSTRACT In 2015 operations under the ownership and/or management of all Newmont Mining Corporation subsidiaries (Newmont) produced 5.7 Moz of gold and 619 Mlb of copper from mining opera...
26-Apr-2017
Abstract In the dry grinding industry the demand for very fine particle size distributions is increasing rapidly. At the same time a growing awareness for an economical management of our planet's resources has raised the demand for energy efficient processes. Roller mills in general and specific...
12-Feb-2016
Abstract Declining ore grade, leading to increased material transport and plant throughout requirements, is one of the major challenges in the current mining environment. This is accompanied by rising energy and labour costs, decreasing plant productivity and the requirement for highest plant avail...
20-Jan-2016