Production Strategy Optimization of Integrated Exploitation …
The production capacity is limited against the background of low-carbon mining. The optimum production capacity allocation scheme needs to be calculated through the optimization model instead of being determined solely from a single deposit in the mining plan, which aims to maximize the overall economic benefit of integrated …
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Impact of Geological Uncertainty at Different Stages of …
This work addresses the long-term open-pit mine production planning. The solution for this problem indicates how and when the ore reserves will be extracted in order to maximize the value of the mining business, generating a promise that commits the mine production over time.
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A Lean Scheduling Framework for Underground Mines Based …
Production scheduling management is crucial for optimizing mine productivity. With the trend towards intelligent mines, a lean scheduling management mode is required to align with intelligent conditions. This paper proposes a lean scheduling framework, based on short interval control as an effective tool to adapt intelligent …
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How to Maximize Mining Productivity
How to Maximize Mining Productivity. While production levels in the Australian mining industry continue to climb, the cost of production is rising at an even faster rate, leaving an ever-widening productivity gap. …
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A two-stage simultaneous optimization of NPV and …
Results show that with a four-bin stockpile, we can maximize the discounted value of the mine by minimizing head-grade deviation to 5.1% and maximizing the reclaimed material by up to 10.7% of the total ore delivered to the plant. ... This paper presents a two-stage algorithm for the open pit mine production scheduling (OPMPS) problem. The ...
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Optimization Production Scheduling of Underground Backfilling Mining
In the green backfilling mining of underground coal mines, gangue in a coal seam is used to replace and fill goafs. However, the gas drainage time changes in the amount of gangue output and order in the extraction sequence of stope blocks, thereby changing the production output. A multi-objective integer programming model was …
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Mining | Free Full-Text | A Framework for Open-Pit Mine Production
In-pit crushing and conveying (IPCC) systems have drawn attention to the modern mining industry due to the numerous benefits than conventional truck-and-shovel systems. However, the implementation of the IPCC system can reduce mining flexibility and introduce additional mining sequence requirements. This paper investigates the long …
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A novel approach to forecast dust concentration in open pit …
Mine dust pollution poses a hindrance to achieving green and climate-smart mining. This paper uses weather forecast data and mine production intensity data as model inputs to develop a novel model for forecasting daily dust concentration values in open pit mines by employing and integrating multiple machine learning techniques. The …
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Open-Pit Mine Optimization with Maximum Satisfiability
A common casualty of modern open-pit mine optimization is the assurance that the resulting design is actually achievable. Optimized mine plans that consider value and a bare minimum of precedence constraints do not, in general, translate into practical, operational mine designs that can be used in the field. Ultimate pits may come to a sharp …
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(PDF) Mine schedule optimization and mine operational realities
In this paper, we consider an underground production scheduling problem consisting of determining the proper time interval or intervals in which to complete each mining activity so as to maximize ...
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An Optimized Open Pit Mine Application for Limestone Quarry Production
The limestone production scheduling for an open pit mine can be described as determining the order in which 'blocks' should be extracted to achieve a specific goal, while taking into account a range of physical and resource restrictions [].The availability of high-quality raw materials in sufficient quantities is critical to the success of a cement …
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A two-stage simultaneous optimization of NPV and …
Results show that with a four-bin stockpile, we can maximize the discounted value of the mine by minimizing head-grade deviation to 5.1% and maximizing the reclaimed material by up to 10.7% of the total ore delivered to the plant. ... Life of mine production schedule after implementing grade control constraints in the optimization process.
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Timing of transition from open-pit to underground mining: …
In our setting, we maximize "discounted metal production" for the remaining life of an underground lead and zinc mine that uses three different underground methods to extract the ore.
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The mining value chain: A hidden gem | McKinsey
End-to-end production: Improved performance on production costs across all steps, including mine operations (drilling and blasting and haul cycle), processing (raw material blending), and inventory. Margin optimization: Enhancement of product mixes and customer contracts to maximize the margin based on the trade-off between incremental …
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Multi-objective Mathematical Programming Framework …
aims to (i) maximize the NPV of the project, (ii) maximize the pseudo backfilling revenue, (iii) minimize reclamation and dyke material mining costs, and ... Gershon ME (1983) Optimal mine production scheduling: evaluation of large scale mathematical programming approaches. Int J Min Eng 1(4):315–329.
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Impacts of Metal Resources Quiz Flashcards | Quizlet
Select the two correct answers. -Both surface mining and underground mining risk causing severe water pollution. -Surface mining causes more destruction of land ecosystems than underground mining. Drag each term to the correct location to compare the qualities of aluminum and tin in the production of cans. Aluminum: more abundant, easier to ...
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ITP Mining: Mine-to-Mill Optimization
Mine-to-Mill Optimization Using Mine-to-Mill Technology to Optimize Crushed Stone Production Historically, the production of a mineral commodity has been perceived as two distinct stages: 1) mining to extract the commodity from ... solution to maximize benefit. The aggregates industry will serve as a test candidate to develop
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308 Underground Mining Stope Layout Optimization …
incorporate, among other things, a method of mining, slope size in other to maximize the Net Present Value (NPV) of a mine (Martinez and Newman, 2011; Gangawat, 2014). Pourrahimian (2013) ... Nehring et al. (2012) classified mine production scheduling into two main categories: long-term production scheduling and short-term production …
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Productivity in mining operations: Reversing the downward …
Worldwide mining operations are as much as 28 percent less productive today than a decade ago, according to new McKinsey research. The results from McKinsey's new MineLens Productivity Index (MPI), which adjusts for declining ore grades and mine cost inflation, show that the pronounced decline in productivity is evident across different …
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An open database on global coal and metal mine …
The global mining sector has undergone rapid growth in the past two …
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Production scheduling optimisation for sublevel …
Volume 68, October 2020, 101809. Production scheduling optimisation for sublevel …
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Open pit mine production schedule optimization using a …
The production schedule problem identifies the set of blocks that should be mined in each period of the life of the mine to maximize the net present value of the mining operation. Decisions on block scheduling are subjected to various constraints, typically: ... This section discusses a generalized open pit mining production scheduling problem ...
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Productivity in mining operations: Reversing the …
Worldwide mining operations are as much as 28 percent less productive today than a decade ago, according to new McKinsey research. The results from McKinsey's new MineLens Productivity Index (MPI), which adjusts for declining ore grades and mine cost inflation, show that the … See more
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An Optimized Open Pit Mine Application for Limestone …
ity of the limestone that will be transported from the nearby mine throughout each production stage. Keywords: limestone; cement plant; production planning; blending; mixed integer programming . MSC: 49M05 . 1. Introduction . The limestone production scheduling for an open pit mine can be described as deter-
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Mining Plan Optimization of Multi-Metal Underground Mine …
Mine extraction planning has a far-reaching impact on the production management and overall economic efficiency of the mining enterprise. The traditional method of preparing underground mine production planning is complicated and tedious, and reaching the optimum calculation results is difficult. Firstly, the theory and method of …
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Practical performance of an open pit mine scheduling model …
1. Introduction. Mining is the extraction of economically valuable minerals or materials from the earth. The open pit mine production scheduling (OPMPS) problem consists of (i) identifying a mineralized zone through exploration, which involves drilling and mapping, (ii) developing an ore body model to numerically represent the mineral deposit …
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How to Maximize Mining Productivity
In the short term, the mine achieved a significant improvement in productivity and performance. Development performance (metres advanced) increased by 37% and maximum instantaneous productivity (metres advanced per day) increased by 33%. The business milestones were completed on time, and naturally, the project was hailed a …
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How digital innovation can improve mining productivity
A gold mine was under severe pressure because the gold grade of the ore body it was mining had fallen by around 20 percent. The mine had increased ore-production volumes to try to offset the decline, but it was running into difficulties because this was overloading its leaching plant and incurring higher costs on energy, chemicals, …
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Technologies in Exploration, Mining, and Processing
At the turn of the twenty-first century, even as the U.S. mining industry is setting impressive records in underground and surface mine production, productivity, and health and safety in all sectors of the industry (metal, industrial minerals, and coal), the industry still needs more effective and efficient mining technologies.
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Productivity at the mine face: Pointing the way forward
The basis for MPI is the well-established Cobb-Douglas production function used to measure productivity in national economies. We have adjusted the function so that we can measure productivity in mining operations. MPI comprises four elements: physical mining output, employment at the mine site, the value of assets at the site, and nonlabor …
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