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By Sukumar Bandopadhyay

The escalation in micro-computer power during the past ten years has been instrumental in the realization of operations research and other mine planning tools as a practical mine design tool. Present day utilization of computer techniques varies across a wide spectrum of activities: from operations research to aid mine management through payroll processing to mine design, monitoring and control. With the advances in computers, increasing automation and robotization in mining, operations research techniques are being used in modeling and evaluation. The trend discernable in mine planning is increasing use of operations research models. In the next ten to fifteen years, nanotechnology will enter in our lives in a big way. There are several methods being pursued for information processing at the nanoscale. The mineral industry management in the 21st century will be faced with several new challenges and opportunities from these advances in the mineral industry applications, data and information acquisition and transmission technology

Aug 25, 2002

By Andreas Rompel

New technologies and applications in exploration and mining are the result of R&D. As the acronym indicated, R&D is separated into Research and Development. They represent different stages in the progress of the development of a new application.

May 1, 2008

By Iván Ibañez

An essential aspect of energy efficiency is determining the opportunities to improve a system or machine's performance from the energetic point of view. For the mining industry, it's a classic problem that mainly all the equipment manufacturers face today to produce the same results with the minimum energy requirements. Existing research focuses on light-duty vehicle energy losses. However, heavy-duty off-road machinery is understudied. This article presents an energy balance assessment of a mining vehicle utilized in an open-pit mine in Colombia.

Sep 29, 2023

By Jordaan Koos

This report looks at the application of Shaft Boring (SB) as an alternative methodology to conventional mechanized Drill and Blast (D&B), Shaft Sinking. Various Continuous Mechanized Shaft Sinking concepts, equipment and projects are also reviewed in this report. Their significance relates to designs and systems related to Shaft Boring. Shaft Boring is increasingly a method considered for the excavation of deep and increasingly large diameter shafts for mines in hard rock. Many methods have been used as an alternative for D&B Shaft Sinking.

Sep 1, 2017

By Greg Corbett

The paper point out the styles of Pacific Rim epithermal gold mineralization. Some characteristics of differing styles of epithermal gold mineralization influence investment decisions (metallurgy, metal ratios, mining style), while others should be taken into account during prospecting (pyrite content and resistivity govern geophysical techniques, vein/breccia styles control drilling, gold distribution influences ore reserve determinations). Two groups of epithermal deposits are distinguished by the fluid style which controls ore and gangue mineralogy. High sulfidation systems develop from the reaction of hot acidic magmatic fluids with host rocks to produce characteristic zoned alteration and later sulfide (dominantly enargite-pyrite) and Au-Ag-Cu deposition. Ore systems display permeably controls governed by lithology, structure and breccias, typically phreatomagmatic breccia pipes, and should be distinguished from a group of generally non-economic acidic alteration including: steam heated alteration, lithocaps or barren shoulders, acid sulfate, and magmatic solfatara alteration.

Apr 24, 2001

By Ángel Álvarez

El presente texto señala la geología y exploración del yacimiento minero Toromocho. Este yacimiento se ubica en el distrito de Morococha, provincia de Yauli, departamento de Junín y se encuentra emplazado en las calizas del metalotecto Pucará (Jurásico), en sus derivados metamórficos y dentro de una variedad de rocas ígneas del Terciario (dioritas, granodioritas, monzonitas cuarcíferas y pórfidos cuarcíferos). Su mineralogía consiste en pirita, calcopirita, tetraedrita, enargita, esfalerita, cuarzo, magnetita, calcosita, covelita, bornita, cobre nativo, tenantita, rodocrosita y silicatos de calcio-magnesio.

Apr 26, 1999

By Terre Lane, Kevin Gunesch, Rick Moritz

Global Resource Engineering Ltd. (GRE) ha aplicado un análisis estadístico avanzado a una base de datos existente de pruebas metalúrgicas para aumentar sustancialmente la certeza del modelo de recuperación. Esta mejora, resultó en un valor presente neto (VPN) más alto para el proyecto, y una certeza mayor en el modelo económico de mina.

Sep 1, 2017

By Roberto Lira Chipana

El presente texto señala el proceso de optimización en perforación y voladura de la mina Iscaycruz ubicada en la parte oriental de la región Lima. Este procedimiento comprende la perforación horizontal (tipo de mallas para roca suave, semidura y dura, mallas antiguas y mallas optimizadas actuales), perforación vertical y el sistema Casing, tipo de mallas para roca suave, semidura, dura. Asimismo, el diseño y la aplicación de las mallas de perforación y voladura tipo VCR permite tener un menor metraje en taladros de producción, un menor consumo de explosivos y un buen control de la fragmentación del material.

Sep 12, 2005

By Jan Klein

"The last decade of the 20th century saw the development of one of the last missing geophysical tools for mineral exploration: the Airborne Gravity Gradiometer. It is possible that Airborne Induced Polarization, one of the stillelusive systems, will make its debut in the next few years. In this sense, the paper point out are the most recent and important improvements in geophysical technologies for mineral exploration. Airborne techniques are followed by the systems used on the ground and in boreholes. New equipment and data processing and modeling software are referred to. Brief remarks are made about developments that can be expected in the years to come, these will be mainly focussing on deep search in rugged and conductive terrains. "

Apr 24, 2001

Mintek's Measurement and Control Division has been developing and supplying control systems to the Minerals Processing industry for many years. This paper will focus on the development of a third generation control system, PlantStar 2000, for mineral processing applications. Case studies of a flotation and milling circuit illustrate the success of the technology.

Jul 17, 2000

By James Jones Bozovich

"PUERTO AGUILA is a deep sea port terminal for the receipt, storage and dispatch of container, mineral, and bulk liquid ships in the coastal area of the District of Matarani, province of Islay, Arequipa Region and Department. The concept of the project considered is to meet the unmet demand for new mining, commercial, and industrial international projects in the South of the Peru. Puerto Aguila will create a new community and generate jobs in the Arequipa region of Southern Peru. "

Sep 1, 2017

By Reinhold A. Errath

The Antamina Concentrator plant was one of the first plants in the world, where about 60 Megawatt only in Milling Power was installed. As a consecuence of the use of Gearless Mill Drives the speed of the mills is adjustable, which allows the operators react to the different ore grades correspondingly, in order to get the best results in terms of milling efficiency. In this sense, this paper describe the basic idea of a Gearless Mill Drive, the construction of it, the manufacturing facilities, the transport, the installation and the function in detail. It gave enough insights to understand why Gearless Mill Drives are so reliable and used as an adjustable speed drive, why it counts with the highest efficiency of all drive systems.But it did describe as well the overload capabilities, the reaction to the network, the reason why the maintenance of the drive system is proven as a minor issue, and finally it was self- explaining why the Gearless Mill Drive is called a working horse.

Sep 12, 2005

By Shianny Cruz Vasquez

Peru is a country with a complex physiography due to the Andes uplift that expose the different ore deposits. Actually Peruvian mining produces a variety of metal commodities and has one of the world’s largest mining. It is the third-largest global producer of copper, silver, zinc and tin. Within Latin America is the largest producer of gold, zinc, tin and lead. The importance of this research was to determine the toxic elements source and the current state of surface water and groundwater all the way from the top until it empties into the Tambo River and assess their, that impact have the toxic contaminants on the environment and the human health of the surrounding Communities and provide a management and decision-making tool to prevent socioenvironmental conflicts.

Sep 1, 2017

By Jerry Rowe

There are numerous examples of historic and recent mines that have no closure system or have poorly designed closure systems. These mines may contaminate water resources, land resources and cause significant impacts to human health and the environment. As a result of these problems, many regulatory agencies around the world require that mine closure systems be implemented to manage ARD and protect water resources. In this sense, the paper discusses some of the key elements that need to be evaluated when selecting a mine closure system. These include the specific site climatic, hydrogeologic, hydrologic and geochemical conditions that must be considered for closure design. Two examples of innovative mine closure systems that have been implemented to take advantage of site specific conditions to effectively manage water are provided. The mine closure systems incorporate passive measures to control ARD (acid rock drainage) and protect water resources.

Sep 21, 2013

By Jeremy Dowling

Mine dewatering is needed in most large open pits but the current practice of using in-pit vertcal wells is often chellenging to implement with good results. In order to address these challenges, SWS collaborated with FMI and innovated a directionally placed mine dewatering well workflow, based on well placement technologies from the Oil and Gas industry. The main aims of the program are to: Maximize hydraulic contact between the ore deposit and production dewatering wells and attain enhanced well production rates from the most important fracture sets. Move the well-heads to permanent areas outside of mine operating areas, removing or reducing the need for in-pit wells and allowing for sustained, prolonged pumping runs times.

Oct 21, 2015

By Paul Juárez, Eduardo Albuquerque, Elves Matiolo

Este trabajo tiene por objetivo evaluar el efecto del reactivo Tiourea (TU) como depresor de calcopirita en la separación selectiva de la molibdenita por flotación diferencial empleando potencial zeta, medidas de ángulo de contacto y pruebas de flotación en celda Partridge Smith (PS).

Sep 1, 2017

By Oscar Mayta

El presente texto señala la geología y mineralización del yacimiento aurífero Chipmo. La exploración se inició en 1992 sobre una veta donde se efectuaron cartografiados geológicos. Posteriormente se efectuaron campañas de sondajes diamantinos para reconocer la veta Prometida en profundidad. La mineralización de las vetas del yacimiento consiste principalmente en oro nativo asociado a telururos de oro, así como a cobres grises, pirita, galena, calcopirita, esfalerita, etc, en ganga de dickita – caolinita, cuarzo lechoso y baritina. Asi también se señalan las técnicas de exploración utilizadas para la evaluación de Chipmo, geología del yacimiento, litología, mineralización en las vetas Prometida, Nazarero, Natividad, y la alteración del yacimiento y geoquímica.

Apr 26, 1999

By Armando Diaz

Vedanta Resources plc is a London listed diversified metals and mining group. The group produces aluminium, copper, zinc, lead and iron; also commercial energy. In this sense, the paper show all the steps on how this expansion is going on, because is the beginning of the plan.

Sep 12, 2011

By Dave Gilbert

The Antamina tailings beach is considered a fundamental design component, as well as a predictive control for phreatic surface control. In this sense, the paper point out the development and purpose of the tailings beach , as well as what future opportunities may exist. These present and future opportunities, include implications of the beach as an evaporative surface control thus reducing pond volume. These desireable outcomes include better control of the phreatic surface in a rockfill dam, and reduction of pond water volume.

Sep 21, 2013

By Albert H. Herrera

La microcuenca Tres Ríos, está ubicada en el distrito de Cajamarca, Región Cajamarca y al NW de la ciudad de Cajamarca, abarcando el centro poblado de Chámis, Corizorgona, Collpayoj y parte de Ronquillo, con un área aproximada de 39.653055km2, a una elevación de 2800 a 3800msnm. Ubicada a 10 km aproximadamente de la ciudad de Cajamarca. Las Formaciones existentes en la microcuenca Tres Ríos son del Ki-desde el Aptiano (Grupo Goyllarisquizaga) con la Fm. Farrat hasta Ks-Turoniano con la Fm. Cajamarca. (Boletín 31.Serie a.-Geología del Perú-INGEMMET). Siendo las primeras Formaciones las más importantes a tomar en cuenta para la construcción reservorios artesanales para el almacenamiento del agua.

Sep 21, 2015