Mining of raw materials is a process that consists of several stages. In open-pit mining, material with high compressive strength is extracted by drilling and blasting and material with low compressive strength is extracted by e. g. a bucket wheel excavator. Most important influencing factors for crusher decision are compressive …
DetailsInnovation has an important role in improving the productivity, safety and sustainability of mining operations. Historically, ore transport was done by diesel trucks, but with the commitment to reduce CO2 emissions and increase mine safety, mining companies have invested in innovative, more sustainable ore transport technologies. …
DetailsThe steam shovel began to change the entire picture of open-pit mining. With the steam shovel came the really 'huge' gyratory crusher, with its 457 mm receiving opening. The turn toward really large primary crushers started just a few years before the turn of the century,
DetailsAbstract A methodology is presented for deciding the location of a third ore crusher to be installed at Chile's Chuquicamata copper mine. The proposed approach determines which location alternative exhibits the minimum capital and operating costs when equipment failure probability is considered. Two alternative location configurations are evaluated …
DetailsThe first of the two configurations modeled is a fixed IPCC system. The fixed system's function is not very dissimilar to that of a traditional truck/shovel system, only that the crusher is fixed for the length of mine near the pit crest, which ferries crushed ore via conveyor to the mill. The other studied case is a. COST CALCULATION
DetailsA new conceptual mining method called the near-face stockpile (NFS), which combines the in-pit crushing and conveying IPCC system with a pre-crusher stockpile, has recently …
DetailsIn this article, optimization of the layout of the fixed crushing station in the in-pit crusher and conveyor system of open-pit mining is studied. First, the entire ore body is discretized into ...
DetailsThe catch benches are estimated to have a width ranging between 31ft and 41ft. The mine face angle is estimated at 75°, while the inter-ramp angles will be between 52° and 55°. The run-of-mine (ROM) ore will undergo crushing in a primary jaw crusher fed by a fixed grizzly screen. The crushed ore will be mixed with the screen undersize and ...
DetailsIn-pit crushing and conveying (IPCC) systems are used in open-pit mining for their potential economic, environmental, and safety advantages . An in-pit crusher is closer to the point of excavation and requires less total truck haulage than a fixed ex-pit crusher. A semi-mobile system allows the in-pit crusher to relocate up to once per year .
DetailsReal-time truck dispatching is an important function of the open-pit mine transportation system. However, most of the existing methods are not comprehensive enough to consider the optimisation of ...
DetailsIn-Pit Crushing and Conveying (IPCC) systems are receiving more attention today due to current characteristics of open-pit mining operations and what is expected to occur in the future. Today, it has become more necessary than ever to reduce the cost of truck haulage, which accounts for roughly half the operating costs of mining operation.
DetailsIn-pit crushing and conveying (IPCC) is getting popular in deeper open pit mines as a suitable alternative because it offers a significantly lower operating cost and truck requirement.
DetailsThe implementation of IPCC systems in hard rock operations in open pit mines however requires different and more comprehensive planning approaches in order to adequately reflect the practical aspects associated with these. ... The requirement for a fixed pit conveyor wall or slot means that pit expansion cannot take place where these …
DetailsUNDERGROUND MINING ENGINEERING 38 (2021) 15-25 UDK 62 UNIVERSITY OF BELGRADE - FACULTY OF MINING AND GEOLOGY ISSN 03542904 Original scientific paper PRIMARY CRUSHER SITE SELECTION IN OPEN PIT MINES - CASE STUDY IN SUNGUN COPPER MINE Ali Nasirinezhad1, Dejan Stevanović1, Dragan Ignjatović1, …
DetailsMining 2021, 1 61 mined the situation with the minimum cycle time. Peng and Zhang [13] did similar work. They compared a variety of possible crusher locations and selected the one that generated
DetailsDumping time is the time taken for the truck to maneuver and dump its payload either at a crusher or dump. ... cycle time. The fixed time is a summation of the loading, maneuvering, dumping and ...
DetailsQuantifying blast fragmentation is useful for measuring blasting performance to determine if the blast has effectively broken the rock mass to enable it to be loaded and that the ore oversize does not exceed the crusher open size.
DetailsThe loading and hauling operations in open-pit mines, which are done through shovel and truck because these are highly versatile and conventional transportation systems, can account for approximately 50%–60% of operational costs (Alarie and Gamache, 2002).Despite the flexibility and acceptability of the truck-shovel system in the …
DetailsIn open-pit mines, the traditional truck-based haulage system has consumed large amounts of energy in the haulage sector for many years. The use of continuous in-pit crushing and conveying (IPCC ...
DetailsGiven the extensive application of IPCC in open pit mining operations, in this study we developed a two-step mathematical model to first provide the best locations and …
Detailsthe pit and semimobile and fully mobile plants within the pit. The gyratory crusher is the crusher of choice for capacities ... of shiftable and fixed mine conveyors. ... open-pit copper mine in ...
DetailsIt is typically installed outside the pit and works with a fixed crusher station (Figure 11) [6, 9, 10, 12]. ... AkbarpourShirazi, M., et al., An Approach to Locate an in Pit Crusher in Open Pit ...
DetailsIn-pit crushing and conveying (IPCC) systems are currently receiving more attention as a result of the existing characteristics of open-pit mining operations and what is likely to happen in the future. The use of trucks and shovels for loading and hauling has been used as a dominant system in open-pit and open-cast mines due to their large …
DetailsOpen-pit mining is a very important aspect of raw materi- ... plication requirements, depth of mine and pushback rates. Fixed crusher stations are located for several years at the
DetailsIn SF-IPCC systems, the crusher is fixed at a strategic junction point in the pit stage for a certain period (usually 3 to 5 years). ... whereby all advantages and disadvantages are considered simultaneously. Large open pit mines may require a combination of different systems, e.g., SM-IPCC and BT systems, to achieve the …
DetailsThe open pit accesses the Southern Oyu deposit, one of three deposits discovered at Oyu Tolgoi. Around 560 people work in 12-hour shifts with a production rate of 100,000 tonnes a day. Ore is removed from a series of benches which are linked to the top of the pit by a 40 metre wide trench road. Each truck transports around 290 tonnes of excavated soil and …
DetailsIn this article, optimization of the layout of the fixed crushing station in the in-pit crusher and conveyor system of open-pit mining is studied. First, the entire ore body is discretized into ...
DetailsMobile In-pit Crusher and Conveyor Systems for Deep Open Pit Metalliferous Applications M Dean1, P Knights2, M S Kizil3 and M nehring4 ABSTRACT Integrated continuous mining techniques such as fully mobile in-pit crusher and conveyor (FMIPCC) systems offer inherent labour, energy and environmental benefits to deep pit …
DetailsIt was concluded that the SMIPCC system could be the most suitable haulage system and the mobile in-pit crusher was better than the fixed crusher for the studied open-pit mine site. De Werk et al. [ 80 ] conducted a comprehensive cost analysis and risk analysis of ST and IPCC systems.
DetailsThe semi-fixed crusher is sitting on a steel platform to minimize concrete structure costs. These large crushers are normally moved every 10+ years. ... Mobile crushers reduce minerals in the open pit mine to sizes which can be transported by belt conveyors thereby reducing or eliminating the need for truck haulage. Truck haulage is …
DetailsPE series jaw crusher is usually used as primary crusher in quarry production lines, mineral ore crushing plants and powder making plants.
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