backfill copper mining process

Mining 101 – Eagle Mine

Mining. At Eagle Mine, underground mining employs long-hole stoping techniques to recover the ore. The deposit is accessed via a 1-mile long decline tunnel measuring about 18 feet in diameter. Ore is transported to the above ground Coarse Ore Storage Area (COSA) by low-profile, 45-ton loaders. Inside the COSA, a front-end loader will fill road ...

Special Issue "Backfilling Materials for Underground Mining"

Special Issue Information. Backfilling of mined-out areas is a fundamental component of many underground mining operations. The backfill material provides support to the surrounding rock mass, reduces wasteful dilution, enables a safe working area for production activities and mitigates the risk of surface subsidence.

US3508407A

US3508407A US709906A US3508407DA US3508407A US 3508407 A US3508407 A US 3508407A US 709906 A US709906 A US 709906A US 3508407D A US3508407D A US 3508407DA US 3508407 A US3508407 A US 3508407A Authority US United States Prior art keywords water backfill polymers solids fines Prior art date 1968-03-04 Legal status (The legal …

Application of Hydraulic Backfill for Rockburst Prevention ...

In the polish underground copper mines owned by KGHM Polska Miedz S.A, various types of room and pillar mining systems are used, mainly with roof deflection, but also with dry and hydraulic backfill. One of the basic problems associated with the exploitation of copper deposits is rockburst hazard. Aa high level of rockburst hazard is caused by mining the ore at great depth …

Mining with Backfill

2021-8-12 · New copper mine dewaters backfill with FL filter. 12 August 2021. FL vacuum disc filters are playing a vital role in preparing tailings slurry for a backfill application at a new copper mine in the Democratic Republic of Congo. Four 3,8 metre disc filters provide a cost-effective dewatering strategy resulting in a cake dry enough to ...

Sampling and Mechanical Testing of Backfill in Large …

2021-1-30 · To investigate the physicomechanical properties of stope backfill and to explore the mining conditions for an adjacent pillar, four boreholes, namely, GZK1, GZK2, GZK3, and GZK4, were constructed for taking the backfill core in the test stope. During borehole sampling, it is found that the strength of backfill is usually lower than that of the rock and ordinary concrete, and its …

(PDF) Engineering the New Olympic Dam Backfill System ...

Tony Grice. Engineering the New Olympic Dam Backfill System G Baldwin1 and A G Grice2 ABSTRACT searches and a visit to Mount Isa Mines in June 1998. The basis of the revised strategy was to ''design the fill mass'' for the WMC Resources Pty Ltd – Copper Uranium Division operates the large underground Olympic Dam Mine at Roxby Downs, South ...

What are alternative uses for tailings? | Weir Group

2019-4-23 · Backfill. The first of these alternative uses is the existing, yet still under-utilised practice of using tailings for backfill. While both cemented paste backfills (CPB) and hydraulic fills are the two most established forms of backfill, paste backfill offers the most advantage.

Metropolitan Coal Mine

Metropolitan Coal Mine – 6km of Piping for Underground Paste Backfill. In 2015, Ausenco engaged us to supply piping for the Metropolitan Mine''s underground backfill emplacement project. The project would allow Peabody to reuse coal rejects as backfill at the mine, located in the Illawarra. The design required a piping solution that could ...

1.1 PHASES OF A MINING PROJECT

2019-2-4 · 1. Overview of Mining and its Impacts1 Proposed mining projects vary according to the type of metals or materials to be extracted from the earth. The majority of proposed mining projects involve the extraction of ore deposits such as copper, nickel, cobalt, gold, silver, lead, zinc, molybdenum, and platinum. The environmental

Major Mines & Projects | Rudna Mine

Mining in KGHM Polska Miedz S.A. is performed by three mining Divisions: Lubin, Rudna and Polkowice-Sieroszowice. In the subsequent phase the Concentrators Division prepares concentrate for the smelters and refineries, while the Tailings Division is responsible for storing and managing the tailings generated by the copper ore enrichment process.

Paste backfill system design and commissioning at ...

Paste backfill system design and commissioning at Chambishi Copper Mine AX Wu et al. 304 Paste 2015, Cairns, Australia Figure 2 Paste backfill process at Chambishi 2.2 Tailings thickening A Φ 16 m FL DORR DCT is employed for the thickening of mill tailings with a …

(PDF) Paste backfill materials for underground mining ...

Cemented paste backfill (CPB) is widely used in backfilling underground mine voids. It consists of fine grained mine tailings with a small dosage of binder (~ 3–10%). Cement is the common binder ...

Stephen Wilson

2014-12-5 · Konkola Copper Mine - Zambia An extended project and site infrastructure audit, in tandem with a review of the project life of mine expectations. The outcome was a step wise execution plan to instigate and progressively expand a backfill system in support of the life of mine requirements. Kinsenda Copper Mine, Democratic Republic of Conga

Longhole Stoping at the Asikoy Underground Copper …

2018-12-21 · Asikoy underground copper mine is located in Küre county, some 60 km north of Kastamonu province and 25 km from Black Sea cost. Underground mining method is longhole stoping with post backfill. Ore prod uction is 420.000 ton/year with an average of %2 copper grade [1]. 2. Geology of the region Küre copper deposits occur along the middle ...

(PDF) Underground mining with backfills

When the adjacent stope ore is mined, the backfill with cement content of 11.1%, 14.3%, 20%, and 25% is exposed. In the process of mining, no collapse or …

Flying Fox Nickel Mine

Western Areas'' Flying Fox underground nickel mine produces some of the highest grade nickel in the world. The mine is 100km east of Hyden in the WA Wheatbelt and operates at depths of 1.2km. Paste is a critical part of the underground operations. It''s used in the site''s stoping process for backfill before excavation of nearby stopes.

2017-11-6 · Effect of low temperature on early strength of cemented paste backfill from a copper mine and engineering recommendations[J]. Chinese Journal of Engineering, 2018, 40(8): 925-930. doi: 10.13374/j.issn2095-9389.2018.08.005

New copper mine dewaters backfill with FL filter

2021-8-12 · New copper mine dewaters backfill with FL filter. 12 August 2021. FL vacuum disc filters are playing a vital role in preparing tailings slurry for a backfill application at a new copper mine in the Democratic Republic of Congo. Four 3,8 metre disc filters provide a cost-effective dewatering strategy resulting in a cake dry enough to ...

Economic Expediency of Copper Ore Mining with Waste …

2018-6-28 · The economic expediency of developing the west wing reserves of Oktyabrsky Mine by cutand-fill method with cemented backfill of primary stopes and waste rock fill of secondary stopes has been determined. This method shows better performance in terms of ore loss and dilution as compared with the current mining system at the same quality of ore produced. …

Projects – Mineral & Mine Backfill Technologies

Supplementary mining project for the disposal of flotation tailings after processing of ore from the Čoka Marin-1 ore body Copper Mine Majdanpek, 2012, (RTB Bor, Zijin). Technical control of Main mining project for reconstruction of the flotation plant Lece Medvedja,

PASTE BACKFILL MATERIALS FOR UNDERGROUND …

2020-1-9 · UNDERGROUND MINING ENGINEERING 35 (2019) 57-64 UDK 62 UNIVERSITY OF BELGRADE - FACULTY OF MINING AND GEOLOGY ISSN 03542904 Review paper PASTE BACKFILL MATERIALS FOR UNDERGROUND MINING - SOME EXPERIENCES IN SERBIA – PART I Milena Kostović1 Received: November 19, 2019 Accepted: December 11, 2019 Abstract: This review paper presents the backfill …

Major Mines & Projects | Media Luna Project

Processing of the ML mineralized material would take place in the existing ELG process plant, with an additional flotation and thickening circuit added to the plant for copper concentrate production. Access to the Media Luna mineral resource would originate from the ELG Mine Complex and remain in service for the life of the operation.

The Mining Process

The Mining Process. Finding new mineral reserves is critical to the success of our company. Locating, extracting and processing these natural resources is a multi-year process that involves complex scientific, environmental and social planning. Newmont mission is to build a sustainable mining business while leading in safety, environmental ...

Kakula Copper''s study for Phase 3 mine and concentrator ...

2021-5-31 · admin Copper, Kakula Mine. Study work for the Phase 3 mine and concentrator expansion is underway, which includes optimization work to determine mining production capacity and costs at the various mining areas on the Kamoa-Kakula complex, including expanded facilities at the Kansoko Mine, Kamoa North (including the Bonanza Zone) and Kakula West.

Utilisation of cemented rockfill, cemented hydraulic fill ...

operation, to a long hole open stoping mining method with backfill. The change in mining method was undertaken to mitigate the risk of surface subsidence and potentially losing the primary means of access to 60% of the mining inventory. Arresting the caving process in two of the major blocks was accomplished by

MIM Enterprise Copper Mine

2021-9-10 · MIM Enterprise Copper Mine. MIM decided to develop its Enterprise copper mine deep under its existing operations. Careful planning was vital to minimize disruption to ore production and haulage. This would be Australia''s deepest mine. Fluor provided engineering, procurement, and construction management to access the ore by sinking an internal ...

Engineering the New Olympic Dam Backfill System

WMC Resources Pty Ltd - Copper Uranium Division operates the large underground Olympic Dam Mine at Roxby Downs, South Australia. These operations mine and process the ore to produce refined copper, uranium oxide, gold and silver. In mid-1996, the company committed to the Olympic Dam Expansion Project (OEP) to expand production from 3.0 million tonnes per …

(PDF) Underground Mining with Backfill | Tony Grice ...

Grice A. 1998, The 2nd Annual Summit – Mine Tailings Disposal Systems, Brisbane Underground Mining With Ba ckfill By A Grice 1 Introduction include waste development rock, deslimed and whole mill tailings, quarried and crushed aggregate, and alluvial or aeolian Backfill is an increasingly important component of sand.