Narrow-reef mechanized mining layout at Anglo American …
Stoping production outlines the anticipated production figures. XLPI ULP mining cycle. ... Narrow reef mechanized mining layout at Anglo American Platinum. Proceedngs of the 6th International Platinum Conference, 'Platinum-Metalfor the Future', Sun City, South Africa, 20-22 October 2014. Southern African Institute of Mining and Metallurgy ...
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Long hole drilling applied to narrow reef mining
• Only a few well drilled holes rather than large numbers of short blast holes • Avoidance of poorly-marked holes, inaccurate drilling and improper charging ... R.G.B. Long hole drilling applied to narrow reef mining. International Platinum Conference 'Platinum Surges Ahead',The Southern African Institute of Mining and Metallurgy, 2006.
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Narrow Reef Mining (NRM)—Innovative Mining Technology …
PDF | On Oct 11, 2023, Vječislav Bohanek and others published Narrow Reef Mining (NRM)—Innovative Mining Technology for Narrow, Sub-Horizontal PGE Ore Bodies | Find, …
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Welcome to MECHANICAL CUTTING
Underground continuous mining and tunneling comprises activities continuously cutting and conveying of material (soft and hard rock) directly along the excavation, including …
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Review of mechanization within Lonmin
The narrow tabular hard rock reef environment has proven to provide multiple challenges to the successful application of mechanized mining methods. This paper reviews the ... In 2004 Lonmin embarked on an aggressive strategy to achieve 50% of reef production using mechanized mining methods. At the end of 2008, a decision was made not to 'bet ...
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MECHANIZING NARROW, TABULAR REEFS IN THE …
players involved in the mechanisation of narrow, reef mining, it was possible to establish several key areas of development. OBJECTIVES OF THE ANALYSIS • Understand the perceptions …
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sbm/sbm narrow reef mining production figures.md at …
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The application of pumpable emulsions in narrow-reef …
Bulk emulsion explosives have been used in large-scale mining operations across the globe for decades. The reason for their extensive use lies primarily in their advantages over alternative explosive technologies, both in terms of safety and blast performance. Despite these benefits having been attainable for some time, the scale and cost of equipment required for the …
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Review of mechanization within Lonmin
The narrow tabular hard rock reef environment has proven to provide multiple challenges to the successful application of mechanized mining methods. This paper reviews the lessons learnt to …
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Narrow-reef mechanized mining layout at Anglo American …
Anglo American Platinum (AAP) is constantly striving towards safe, sustainable, productive, and cost-effective operations. There are many different initiatives, one of which is mechanization, and in particular, mining with extra-low profile (XLP) or ultra-low profile (ULP) equipment in pre-developed stoping areas. This paper considers the best practices that have …
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Techno-economic optimization of level T and raise …
mining method on the Bushveld Complex, accounting for nearly 70% of platinum production, whereas the remainder comes from open-pit, hybrid (mechanized access with conventional stoping), and mechanized mining methods (Figures 3 and 4). Conventional mining is, and has been, used widely in the extraction of shallow-dipping, narrow tabular reefs in the
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v117n7a1 Multi-stakeholder collaboration to unlock the …
South Africa's narrow-reef mining operations are facing challenges such as volatile commodity prices, operational cost increases in excess of inflation, health and safety issues, and depletion of less geologically complex reserves. These challenges have resulted in declining production profiles for many mining companies.
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v117n3a8 Narrow-reef mechanized mining layout at …
ULP mining below 400 m utilizing the narrow-reef mechanized mining layout has been shown to create signifi-cantly more value from both a financial and an operational perspective, due to the extraction ratios that can be achieved using these methods coupled with the overall efficiencies (>4000 m2 production per month) of the XLP/ULP equipment.
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Loading and hauling of broken rock in a narrow tabular …
Guidelines for mining engineers, production supervisors, and mine planners are also provided. Cleaning cycle constraint for a face cleaning rate of 110 m 3 -m/h Cleaning cycle constraint for a ...
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Narrow-reef mechanized mining layout at Anglo American …
Narrow-reef mechanized mining layout at Anglo American Platinum. J. S. Afr. Inst. Min. Metall. [online]. 2017, vol.117, n.3, pp.263-274. ISSN 2411-9717. ... Emphasis is placed on the higher production levels and greater efficiencies that can be achieved using this equipment. The paper will highlight the importance of the mining cycle as well as ...
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Variations in ultra-deep, narrow reef stoping …
and out of the reef horizon. Generally this stoping approach has a moderate ventilation need per ton and a moderate in-stope heat load per ton. Dip pillar and underhand breast layout This method has recently been implemented successfully in the mining of narrow reefs at depth. Dip pillars are left behind in the reef horizon defining spans ...
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Hard-rock room and pillar mining best practice …
definition; however, room and pillar mining as practised in the narrow reef hard rock mines in Southern Africa is not so simple. In recognition of the complexity of hard-rock room and pillar mining, the mining industry sponsors of the Centre for Mechanized Mining Systems at Wits University requested that the Centre design and facilitate a Best
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(Hydropower) Technology in South African Narrow-Reef …
The Southern African Institute of Mining and Metallurgy Platinum 2012 P. Fraser THE USE OF HIGH-PRESSURE, WATER-HYDRAULIC (HYDROPOWER) TECHNOLOGY IN SOUTH AFRICAN NARROW-REEF HARD-ROCK MINES P. Fraser Hydro Power Equipment (Pty) Ltd Abstract This paper examines the new water-hydraulic (hydropowered) drill rigs that have been …
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Mining by rock cutting in narrow reefs
Since the early 1970s research has been ongoing to develop a cost-effective way of continuously mining the narrow reef, hard rock, typical of South African gold and platinum mines. In the late …
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Narrow-reef mechanized mining layout at Anglo American …
Narrow-reef mechanized mining layout at Anglo American Platinum F. Fourie 2017 Journal of the Southern African Institute of Mining and Metallurgy ... There are many different initiatives, among which mechanization, and in particular, mining with ultra-low profile (ULP) and extra-low profile (XLP) equipment in pre-developed stoping areas has ...
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THE OPTIMISATION OF MINING METHOD AND …
Narrow reef mining may not be applicable to the base metal operations in Zambia, however, it is considered that the methodology used is equally appropriate to the development of technology …
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(PDF) Characterizing a mining production system …
For a typical underground, tabular, narrow-reef conventional drill-and-blast platinum mine the face advance, face length mined, number of teams, team efficiencies, and team size have a ...
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AUTOROCK RIGS FOR ROCKBOLTING IN NARROW REEF …
Between 2000 and 2006, platinum production from the South African mines expanded from 206 to 307 tonnes (DME, 2007). Most of this additional metal has come from traditional "narrow" reef stoping, generally taken to mean stoping in working places with a mining height of less than 1,5 metres. It is well known that narrow-reef stoping
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Narrow Reef Mining (NRM) Innovative Mining …
pit mining, and only 1 in open-pit mining [8]. Underground mining imposes very rigid constraints on mobile equipment design [9]. The platinum mining industry is using a number of different mining methods, including variations of the same method, to extract the narrow reef tabular platinum [10]. The choice of a particular mining 'method'—i.e.,
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AUTOROCK RIGS FOR ROCKBOLTING IN NARROW REEF …
Between 2000 and 2006, platinum production from the South African mines expanded from 206 to 307 tonnes (DME, 2007). Most of this additional metal has come from traditional "narrow" reef …
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Narrow-reef precious metals mining at a crossroads
Mechanised mining methods have gone on apace outside of the hard rock, narrow-reef scenario. Opencast mining, room-and-pillar mining and block-cave mining have, the world over, all mechanised ...
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The application of pumpable emulsions in narrow-reef …
The conducted research contribute to reducing the cost of 1 m of mining to 11%, as well as to saving resources in the production of mining operations and increasing the speed of mining at the ...
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THE USE OF HIGH-PRESSURE, WATER-HYDRAULIC …
The Southern African Institute of Mining and Metallurgy Platinum 2012 1017 P. Fraser THE USE OF HIGH-PRESSURE, WATER-HYDRAULIC (HYDROPOWER) TECHNOLOGY IN SOUTH AFRICAN NARROW-REEF HARD-ROCK MINES P. Fraser Hydro Power Equipment (Pty) Ltd Abstract ... The UniRig shown in Figures 2 and 3 is designed as a single rig capable of both …
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MM's Top 10 technologies: 2
Hard rock cutting for production. ... RH stands for Rock Header and the numbers refer to the machine's 3m x 5m heading dimensions. The Rock Straight system is designed for fully mechanised mining of low seams and narrow reefs, such as copper, gold or platinum applications. ... but also keeping an eye on narrow-reef gold mining. Most probably ...
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Variations in ultra-deep, narrow reef stoping …
for narrow reef mining in ultra-deep operations in very hot rock. The stope ventilation and cooling needs are driven primarily by the difference between the air temperature and that of the rock …
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