bulk solids handling Journal Technical Article Continuous Versus Discontinuous Shipunloading This paper compares the advantages, disadvantages, and status of grab and continuous coal unloading systems for ocean-going ships. read more
bulk solids handling Journal White Paper Microprocessor Control of Blending and Weighing Systems Whenever the costs of raw materials escalates, the justification for more sophisticated control is reexamined. Microprocessors can improve cost control by reducing giveaway, improving quality and reducing operational costs. Microcomputer control refinements are almost without limitation, but pr…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 White Paper System for Coal Car Unloading at Rail to Water Terminals The past and present decades have seen a rapid growth in the export of coal to foreign countries. Normally, coal is brought to the export terminal by trains made up of either unit train cars (cars of same size and capacity) or of random cars (cars of varying sizes and capacities). If the rolling sto…read more
bulk solids handling Journal Research Paper Fundamental and Applied Research in Hydraulic Transportation at the CSIR, Pretoria, South Africa This article outlines the type of work on hydraulic transportation of solids which has been and is being carried out by the National Mechanical Engineering Research Institute at Pretoria. Special emphasis is placed on handling mineral slurries, since the mining industry plays an important part in th…read more
bulk solids handling Journal Technical Article The Filling, Closing and Handling of Sacks Following a reference to the types of sacks available the considerations affecting the choice of sack packaging equipment are examined. Descriptions of basic open mouth and valve sack packing installations are given. The principles of operation of the various types of packers and their applications…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 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 White Paper Improving Wet Dust Collection – Dust Collectors increase the Removal Efficiencies of Wet Scrubbers Wet dust collection systems are in use with a variety of industries, because they can handle fine particles quite easily. By installing a dry pre-dedustion system the efficiency of the wet scrubber can be increased and its slurry discharge reduced. read more
bulk solids handling Journal 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 Case Study Port Kembla - A State of the Art Coal Port The new Port Kembla coal loader, dedicated on November 22, 1982, was developed to satisfy the following criteria: superior environmental protection, capacity, one hour train tum-around time, environmentally acceptable unloading of 200,000 trucks a year, high reliability, ease of maintenance and clea…read more
Technical Article Matching Feeder Extraction Pattern with Hopper Hopper design is primarily based on the nature and physical properties of the material to be stored, but the feeder is also very important. The first decision is to choose an appropriate flow regime, Generally, mass flow is selected for products that deteriorate over time, funnel flow for inert, fre…read more
bulk solids handling Journal White Paper Digital Weighing in Bulk Handling A general introduction to weighing in bulk handling is given with particular reference to the various methods of weighing bulk materials during and after loading. Several case studies are outlined. read more
bulk solids handling Journal Case Study Stacker and Shiploader at the Port Kembla Coal Terminal The Port Kembla Coal Terminal stockyard consists of two stacking conveyors on the outside of the piles and initially one, and in the future two reclaim conveyors between the piles Each stacking conveyor has two rail-mounted stackers. The ship loading system is interruption free. It utilizes two…read more
bulk solids handling Journal Technical Article Truck Dispatching by Computer Simulation This paper describes the results of a digital computer simulation study in which the impact of the proposed truck dispatching on the overall mine productivity was investigated for an operating open pit mine. In the study the existing operation was first simulated for a one-month period using both t…read more
Case Study New BHS Concrete Mixer for Grand Paris Express Unibéton, a French subsidiary of the HeidelbergCement Group, is producing specific ready-mix concrete for the “Grand Paris Express” project. To optimize the production process, the company replaced a planetary mixer with a twin-shaft mixer from BHS-Sonthofen. For the first time in France, the m…read more
bulk solids handling Journal Technical Article Combined Mining Systems for Open Pit Mines Production rates in opencast mines will have to be increased in the future, especially in the energy sector. Reasons for this development are an increased demand for coal, oil-sand and oil-shale, the steadily growing share of opencast mining operations as opposed to a decreasing share for undergroun…read more
bulk solids handling Journal Case Study PWH in Australia PHB Weserhütte Aktiengesellschaft, shortly PWH, has three divisions in the Federal Republic of Germany (Cologne, Bad Oeynhausen, St. lngbert) and numerous subsidiaries and associated companies throughout the world (Australia Brazil, Germany, France, England, Spain Austria, South Africa, USA). read more
bulk solids handling Journal White Paper Vibrating Feeders for Stockpiling and Reclaim The efficient and economical storage, movement and control of large tonnage coal handling installations unit train loading and unloading storage blending and reclaim systems depend on the proper application and design of vibrating feeders. Installation of vibrating feeders in over 250 power pla…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 Technical Article Alternative Carrying Media and Agglomeration Processes for Transportation of Coal Such terms as Colloil, COM (Coal in Oil Mixtures) and Methacoal have become a common feature in the literature. More recent deliberations, examinations, and publications also in respect of contemporary projects have been tending towards alternative carrying media such as oil and methanol to an ever …read more
bulk solids handling Journal White Paper Bulk Solids Handling Research at the University of Newcastle The handling of materials in bulk form is a major industrial activity of the various mining and mineral processing industries throughout Australia. With this background, the Department of Mechanical Engineering of the University of Newcastle has had an active research interest in this field for a nu…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
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