bulk solids handling Journal White Paper 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 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 Case Study The Two Newest Transshipment Terminals in the U.S. The author gives details of the two newest, ORBA designed and constructed, ore and pellet transshipment terminals which are both located on Lake Erie in the State of Ohio. The two newest transshipment terminals in the U.S are both situated on lake Erie in the State of Ohio. The Lorain Pellet Te…read more
bulk solids handling Journal Technical Article The Development of Bucket Wheel Excavators During the Last Fifty Years This article reviews the important development steps in the manufacture of bucket wheel excavators during the past 50 years. New developments and technical improvements in the areas of crawler drives, slewing gear, the bucket wheel, and the conveyor belt of the wheel boom are presented in detail. A …read more
bulk solids handling Journal White Paper Climate Adaption: Extreme Weather Events and the Mining Industry The damage caused by recent flooding across eastern Australia highlights the vulnerability of the built environment to extreme weather events. Flooding is part of the natural cycle of climate variability everywhere so the current discussion about whether the recent floods were caused by climate chan…read more
bulk solids handling Journal Case Study Dalrymple Bay Coal Terminal, Port of Hay Point, Queensland With the opening of several new coal mines in Central Queensland, it became necessary to plan for increased storage and ship loading facilities to cater for the anticipated additional 30 10M/year production. The Port of Hay Point was selected as the site for these new facilities, some of the re…read more
bulk solids handling Journal Technical Article 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 Case Study Saving Gold from Landfills – Recovery of Metals from fine Shredder Fractions Fine fractions of shredded automobile scrap and electronic equipment still contain consid- erable amounts of precious metals which until now have invariably been deposited in landfills. A new one-of-a-kind process allows to reclaim and sell these metals profitably. read more
Case Study JOEST: Full Screening Power at the Arctic Circle in Norway Scandinavia’s biggest producer of iron ore is relying on JOEST screening technology. The project comprises of a new, turnkey screening and conveying system to prepare iron ore pellets for shipping. Kiruna, the northernmost city of Sweden, is home to an iron ore mine of the same name, which process…read more
bulk solids handling Journal Case Study 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 Case Study 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 White Paper New Developments in Continuous Mining and Materials Handling Bulk mining and handling technologies have been affected in two ways by the soaring cost of oil and oil products in recent years. Firstly, the substitution of oil by coal, oil sands and oil shale demands the development of high-capacity mining and handling equipment and secondly, the rising fue…read more
bulk solids handling Journal Technical Article The Increased Use of Belt Conveyor Self-Unloading Vessels - A Coming Development in Ocean Bulk Shipping The author underlines the importance of self-unloading vessels for Great Lakes shipping and explains the reasons why and how belt conveyor type self-unloading bulk carriers are being used or planned to be used to an ever increasing extent for bulk movements on ocean routes. A survey of major shippin…read more
bulk solids handling Journal White Paper Circular Blending System for Coal PHB Weserhütte (PWH) have built and recently commissioned two circular stockpile systems which are used to stack, homogenize and reclaim raw coal for Gewerkschaft Sophia Jacoba in Hückelhoven, Germany. The total system is the first circular stockpile blending plant of its kind in the world and bec…read more
bulk solids handling Journal Case Study Port Kembla Coal Terminal The new coal loading facilities at Port Kembla, presently under construction and to be commissioned in August 1982, are being described. The system consists of unit train and bottom-dump truck unloading, open stockyard, ship loading and extensive conveyor belting. One of the major criteria in dev…read more
bulk solids handling Journal Case Study Homogenizing/Blending Plant Applications in South Africa with Special Reference to Gencor's Hlobane and Optimum Plants This paper describes how an analysis of the functions objectives and decision criteria of homogenising/blending plants by South African metallurgists and engineers have led to a wide range of applications of this technology in South Africa over a relatively short timespan of 15 years with some inter…read more
bulk solids handling Journal Case Study 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 Technical Article Violent Failure: Hidden Causes for Destruction of a Grain Silo The sudden destruction of a silo at a grain depot in South Africa posed a number of questions. In-depth examination of the silo remains and detailed analysis showed that the silo failure was not caused by structural weakness, but by a ‘hidden’ dust explosion. read more
bulk solids handling Journal Technical Article Bulk Transport of Retorted Oil Shale for Mechanical Backfilling Mine backfilling is a desirable method for the disposal of retorted oil shale and is an environmentally acceptable alternative to surface disposal. Hydraulic mechanical and pneumatic transport and stowing methods were investigated, and the mechanical transport and stowing method using belt conveyors…read more
bulk solids handling Journal Case Study Railroading of Phosphate Agrico Chemical Company, a leading phosphate producer and processor in Florida s Bone Valley area, is the proving ground for a new manual door operating system which Ortner Freight Car Company has developed for its Rapid Discharge aggregate car. Dubbed the Versalok, the new system enables one man to…read more
bulk solids handling Journal White Paper Powerful Protection: Fluid Couplings for Amored-face Conveyors To meet China’s enormous demand, more and more coal has to be mined within shorter times. During mining the coal is transported from the seam on armoredface conveyors. For the conveyor drives, Voith Turbo has developed one of the world’s most powerful mining coupling with a transmission capacity…read more
bulk solids handling Journal Case Study Loading and Unloading Equipment of a Bulk Cement Carrier The transportation of bulk cement by sea utilizing an exclusive carrier with specially designed loading and unloading equipment and facilities was first undertaken some years ago by Onoda Cement Co. Ltd. (ONODA) in Japan. Since that time a number of similar exelusive carriers for the transport of bu…read more
bulk solids handling Journal Case Study Basic Design of the Bucket Wheel Excavator for the Goonyella Mine Overburden stripping at Goonyella Mine has already reached the stage where drag lines alone cannot handle the depth or achieve the production targets required without the aid of additional (pre-stripping) equipment. Currently, a fleet of twelve scrapers is being used for this purpose but long term p…read more
bulk solids handling Journal Technical Article Sampling of Coal in the USA Over the years the use of mechanical sampling systems has grown rapidly in the USA. With about 1 billion (109) tons of coal being mined, the need for accurate sampling systems is proving itself throughout the industry. The complexity of coal sampling, however, has not made it easy to design and…read more