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bulk solids handling Journal

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In-Pit Crushing and Conveying

The author reviews the factors leading up to the selection of In-Pit Crushing and Conveying technology and discusses the currently available options in equipment selection. read more

bulk solids handling Journal

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A New Bucket Wheel Excavator Complex for the Goonyella Mine

A bucket wheel excavator – conveyor system – spreader complex will be put into operation in Australia for the first time in particularly difficult winning conditions. These difficulties were taken into account by the exceptional stipulations laid down for the layout of the machines. The complex …read more

bulk solids handling Journal

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Next Level Mining – New overall Control System helps Swedish Mine to meet tomorrow’s Demands

Garpenberg’s lead, silver and zinc has been mined since the 13th century. ABB’s Next Level Mining approach to automate and integrate its processes offers something more important than a rich past: It is aimed to enable a profitable future. read more

bulk solids handling Journal

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An Important Achievement in a U.S. Cement Plant

The installation of a mobile toothed roller crusher which can handle widely differing large size hard and dry as well as moist and sticky materials and its technical data are described, as well as the reclaiming machines which recover these products from stockpile. An innovative approach led to an e…read more

bulk solids handling Journal

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Technical Article

Going up - Convey vertical – Overcoming Limits in Vertical Conveying

Besides the traditional shaft conveying systems like skips and hoisting cages are well developed and proven. Nevertheless, there is another possibility by using continuous systems, one of which is presented below. read more

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Good Vibrations: thyssenkrupp goovi® – a Revolution in Screening Technology

goovi®, thyssenkrupp’s innovative multiple vibrating screen, generates good vibrations! It is revolutionizing screening technology thanks to an innovative, patented drive system and a host of intelligent detail solutions, maximizing screening efficiency and flexibility along with substantially re…read more

bulk solids handling Journal

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Reclaiming Gold and Uranium in South Africa

Bucket wheel excavators coupled with mobile conveyor systems are used almost exclusively in open-pit operations for removing overburden and mining minerals. The purpose of this article is to describe the technically and economically successful application in a new field, viz. reclaiming sli…read more

bulk solids handling Journal

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Belt Conveyor Modernisation – Chute Design for increased Throughput and reduced Dust Generation

Modernisation of conveyors in coal mines and coal-fired power plants helps to ensure that the mine or plant is running to their optimum capacities, maximising throughput and producing quality products with as little impact to the environment as possible. read more

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UNTHA Shredder efficiently handles all Kinds of Scrap Tyres

Scrap tyres – whether from wheelbarrows, cars, or trucks – must withstand high loads, which is why they are made of particularly resistant materials such as natural rubber, steel, and nylon. All these materials form a complex, durable compound. In order to make good use of used tyres at the end …read more

bulk solids handling Journal

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Technical Article

Output and Availability Factors of Bucket Wheel Excavators under Actual Mining Conditions

The author defines the term "theoretical output" [bm³/h] as basic value for the assessment of the short and long time effective output [bm³/h] of bucket wheel excavators. Approximately 40 bucket wheel excavators operating in over burden on four continents, are analyzed on the…read more

bulk solids handling Journal

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Technical Article

Dredging of Heavy Minerals

After a short discussion of the mining procedure used for dredging heavy minerals the current dredging techniques are reviewed Successful tun-scale tests proved that an underwater bucket wheel can be applied for dredging purposes up to depths of 100 m and that this bucket wheel shows the same favour…read more

bulk solids handling Journal

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Dry Treatment of Stainless Steel Slag – Magnetisation of Stainless Steel allows efficient Separation

Slag is a normal and necessary “byproduct” of the steel making process and contains debris as well as a certain amount of metals. Recovering this metal content reduces the need for virgin ores and saves part of the production process. read more

bulk solids handling Journal

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Technical Article

Hydrotransport in Coal Mines

The utilization of water as a transporting medium for coal belongs to a section of technology which is still unfamiliar to large sections of the mining industry. As a function of direction of the hydraulic flow to gravity hydrotransport can be classified into three groups. read more

bulk solids handling Journal

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Finite Element Structural Analysis of Movable Crusher Supports

Finite element analysis is applied to two different basic structural arrangements. One configuration utilises a plate shell structure to carry the loads similar to the construction used for the marine industry. The other configuration utilises a space frame made up of columns beams and bracing simil…read more

bulk solids handling Journal

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A Computer Simulation Model for a Surface Coal Mine

This paper describes the application of the open pit materials handling simulator (OPMHS) to a surface coal mine in Illinois. The mining method practiced is classified under the general heading Area Mining. The overburden is removed by a bucket wheel excavator (BWE) and a stripping shovel operating …read more

bulk solids handling Journal

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Modular Walking Draglines

The development of walking drag lines is presented in the context of current operational requirements and the design and development philosophy of the new breed of modular walking drag lines is outlined in detail. read more

bulk solids handling Journal

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Staten Island Coal Export Terminal

The authors review the future prospects for the export of steam coal from the USA and the available port facilities on the East Coast to deal with this. The background to the decision to build a major new coal export terminal on Staten Island is detailed. The plans for the terminal, to be completed …read more

bulk solids handling Journal

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New Technology for a ‘new’ Mine – A sustainable, innovative Partnership for reactivating a Philipino Copper Mine

In 2007 a Philipino copper mine was reactivated after half a decade of decommissioning. To improve the technical and financial results the mining company engaged a specialist company for the upgrade and expansion of the concentrator plant, the capacity of which grew by 50%. read more

bulk solids handling Journal

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Technical Article

Tackling the Wall – The Skip Way System, a new Approach to Steep-Angle Conveying in Quarries and smaller Open-Pit Mines

Quarries and open-pit mines for ores, minerals or building materials are often characterized by steep terraced slopes formed by blasting and material removal. A new, energy-balanced steep-angle conveying concept is aimed to optimize operating costs and energy efficiency. read more

bulk solids handling Journal

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Limestone in a Silo: OK – but out? Resolving Material Accumulation in Cement Plant Limestone Silo

Cement production involves a good deal of bulk material handling. As the base materials, and especially their handling behaviour, are prone to humidity, special action must be taken to keep these materials moving in the course of the production process. read more

bulk solids handling Journal

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Exporting Coal Via the Inland Rivers System

Low-cost transportation of coal from the mining areas to the exporting docks via the Inland Rivers System is available. The author describes technical aspects of barge loading and unloading, and concentrates on the transshipping facilities in the Gulf Coast area. read more

bulk solids handling Journal

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Engineered Coal Chutes: Transshipment Terminal extends Conveyor Belt Life

A high-volume coal transshipment terminal at the western edge of Lake Superior has eliminated material backups and reduced maintenance – while extending conveyor belt life – with customengineered transfer chutes. read more

bulk solids handling Journal

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Permitting Procedures for Coal Port Construction

The author reviews the major steps to be taken in order to receive the necessary permits for the construction of coal handling ports. The various federal and state air and water quality requirements are discussed as well as the regulations imposed by the Army Corps of Engineers. Based on the ex…read more

bulk solids handling Journal

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Advances in Stirred Milling: Improving Profitability of Copper Ore Processing

The vertical stirred media mill is a proven technology that offers considerable savings in media and energy operating costs that will lower the cost of producing copper significantly. Also, the environmental impact of a copper concentrator is significantly decreased. read more

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