This paper presents the main considerations and results for the transition from a traditional LHD–orepass layout to a LHD–peripheral crusher-based layout. Keywords: mine design, ore handling system, block caving, caving projects 1 Introduction 1.1 Chuquicamata underground mine overview Supercaves (Araneda 2015; Flores 2014) is the name of ...
This included driving around 36km of tunnels plus the underground crusher stations, ore handling infrastructure and the undercut level for the first block cave, situated 500m below the final pit bottom.
Abstract: The ore handling system layout plays a fundamental role in cave mining projects, not only because it is one of the main drivers in the production capacity and reliability of the mining system, but also because it is a fundamental variable in the footprint's development time and cost (Paredes et al. 2016). In terms of ore handling system definition, the …
The Massmin 2020 crowd got a glimpse of just what will be required to build Colombia's first underground caving mine during a presentation from AngloGold Ashanti's Lammie Nienaber ... (1,295 mm) gyratory crusher was selected. This crusher is also suitable to support block cave mining should the conversion of mining method occur, according ...
magnitude +2.9 were induced near the mine during caving, with event rates of up to 500 ... Production halted due to crusher breakdown. 3. 30 September 2004 – Cave production restarted.
Some mines also use circular sled racks. Both the jumbo and rack are equipped with a heavy-duty rock drill. Ore removal is mostly performed by using loader conveyor and carry-scraper. If haulage distance is long, both loading machinery and dump truck or self-propelled mine car are used. The mining method is shown in the diagram …
Abstract LKAB's Kiruna mine is an underground sublevel caving mine located above the Arctic circle in northern Sweden. The iron ore mine currently uses a long-term ... passes, where loaded trains haul the ore to a crusher. At the crusher, the ore is broken into pieces small enough to be hoisted to the surface via vertical shafts.
The New Level Mine is a 130.000 tpd panel caving project set to start in 2017 at the El Teniente mine. ... Figure 2 Plan view at mine level 1790 of the Crusher Chamber SCh Nº1 location ...
The PMC underground copper mine employs a block caving mining method for the extraction of ore beneath the old open cut void. Production has been sourced from Lift I of the block cave from 500m below the floor of the open cut void. ... 380 m below Lift I, with a mine life extension to 2033. Crusher 5 excavation. Surface Works - Underground ...
The Massmin 2020 crowd got a glimpse of just what will be required to build Colombia's first underground caving mine during a presentation from AngloGold Ashanti's Lammie Nienaber ... (1,295 mm) gyratory crusher was selected. This crusher is also suitable to support block cave mining should the conversion of mining method occur, according ...
The New Level Mine is a 130.000 tpd panel caving project set to start in 2017 at the El Teniente mine. ... J 2000, 'Excavation design and ground support of the gyratory crusher installation at the ...
Sublevel caving (SLC) is a mass mining method based upon the utilisation of gravity flow of blasted ore and caved waste rock [1]. The method functions on the …
Sublevel caving method with sill pillar is the mining process in which a level is divided into several sublevels, a bottom structure specifically used for ore removal is furnished at the lower part of each sublevel, and stoping of ore proceeds from the top sublevel to the bottom sublevel (Fig. 1).It is also called sublevel caving method with …
The E26 SLC mine is a sublevel caving operation involving construction of the sub level horizon followed by retreat drill and blast of that horizon, with the material above allowed to freely cave to fill the opened voids. ... The latest crusher is noteworthy as the world's first "double-mouth" jaw-gyratory crusher, developed by ...
Portable Crusher for Open Pit and Quarry Operations. The primary use of a portable crusher, i.e., a crusher mounted on crawlers or tires, in the rock and mining industries is to reduce costs by permitting the substitution of conveyor belt haulage for truck or track haulage.
With its production level at a depth of 1,050 m, Newcrest Mining developed Ridgeway Deeps beneath the existing sub-level caving mine. The transition took place in 2009, although as a 2012 analysis note from Credit Suisse suggested, the move here did not go completely to plan. "The caving rate and fragmentation is in line with modeled projections.
Northparkes was the first mine to use the standard indirect fed Jaw Gyratory crusher type BK 63-75 for its newly developed block caving mine concept, thyssenkrupp said, with this primary crusher …
2004, 14 years before the planned initiation of caving in early 2018 and almost 20 years prior to achieving full production rates of 160 000 t/d of ore by 2024. The three currently active mining operations in the Grasberg Mining District are the Grasberg open pit (160kt/d ore), the Deep Ore Zone (DOZ) block cave mine (50–80 kt/d) and the
The block caving mining method has become increasingly popular in the last two decades. Meanwhile, Indonesia has several potential ore bodies which have not yet determined suitable mining methods. The references to block caving mining projects worldwide and the potency of metal deposits in Indonesia were reviewed to determine …
The underground mining method Kiruna currently employs is known as large-scale sublevel caving. This method is used for extracting ore from vertically …
Openings in a block-caving mine are subject to high rock pressure. Drifts and other openings, therefore, are excavated with the smallest possible section. Nevertheless, extensive rock bolting and concrete lining is required to keep the openings intact. Properly applied, block-caving is a low-cost, productive mass mining method.
In caving operations, mine design and planning needs to consider the strategic management of geohazards ... Crusher type Jaw Jaw-Gyro Maximum crusher feed size (m3) 1 3 Material handling system (MHS) capacity (Mtpa) Two crushers to achieve 10 One crusher to achieve 15
Ore is hauled to an in-pit crusher that delivers to the Copperton Concentrator via a 6 km long conveyor system. About 20 per cent of the ore is loaded into rail cars and hauled to …
In this regard, the mining system design for current supercaves can be classified into two types: (1) LHDs tipping directly into orepasses inside (below) the footprint, and (2) LHDs …
With the diminishing mining resources and increasingly complex geological settings, the productivity decline of metal mines across the world is becoming a significant challenge [1, 2].Achieving safe and efficient mining under extreme geotechnical conditions is a frequently encountered problem in mining design [3,4,5].Contemporary sublevel …
3 Geotechnical considerations for mine design and planning In caving operations, mine design and planning needs to consider the strategic management of geohazards such as mining-induced seismicity, airblast and inrush to be central to the design and operating …
Northparkes is also the first mine to use Thyssenkrupp's standard indirect fed jaw-gyratory crusher BK 63-75, which was intended for the mine's newly developed block caving concept. "The ...
Willpactor® Primary Rock Crusher. The Willpactor is an ideal primary rock crusher. Exhibiting a powerful design and rugged durability, the Willpactor® is perfect for primary rock crushing applications. Willpactors thrive in high-capacity applications such as crushing large run-of-mine rock.