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 Case Study Unique Mine and Process: High Efficiency with Bioleaching and adapted Filtration Finland is currently witnessing several mine site establishments as the traditional industry strengthens its position within the Nordic countries. Talvivaara Mine is a great example of how alternative mining methods can be economical and how determination and cooperation can spur entry into the glob…read more
Case Study Conveyor Belt Generates Power for Air Cannons to control Build-Up The Ash Grove Cement plant in Louisville, Nebraska produces approximately 1.1 million tons per year. In order to maintain production levels, efficient material movement via conveyor is critical. The issue is especially acute when running wet raw material at the quarry. Over time, operations personne…read more
bulk solids handling Journal Technical Article Predicting and Preventing Wear in Pipe Bends – Basic Information for choosing a cost-effective Wear Protection Solution There are many means of providing wear protection for bends and straight sections in pneumatic conveying systems, but they can be very costly or severely increase the energy consumption, or limit its throughput, if applied too liberally. Hence it is very important to choose carefully the right means…read more
bulk solids handling Journal Case Study Sands a la Carte – Pehofer expand Sand and Gravel Production Capability Pehofer GmbH have invested in a new modular gravel washing plant from CDE Global at their premises in Wiener Neustadt (Austria). The plant consists of a mobile washing plant and a semi-mobile logwasher and processes 225 tons per hour of limestone raw material. read more
bulk solids handling Journal Case Study 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 White Paper Sand with maximum Grain Size of 300 micrometer – The Production of Sand for Use in Specialised Mortar Varieties he BHS rotor impact mills of type RPM are becoming more and more popular for the production of sand for dry mortar. In some countries they have become almost a standard for the production of extraordinarily fine sand. read more
Case Study Russell Finex: Compact Sieve used for Screening of Marble Powder during Tanker Loading Francis Flower, a specialist in minerals management, storage and processing, applies vibratory sieve from Russel Finex for check-screening marble powder during bulk loading of delivery tankers from loading silos. The screeners used are less than half the height of a traditional sieving machine, an…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 Technical Article The Importance of Non-linear Strain Considerations in Belt Conveyor Indentation Loss Energy loss due to rolling resistance of rubber belts is a major factor in conveyor design and its determination is dependent on the properties of the rubber compound of the belt backing. Vulcanised, carbon black-filled backing compounds typically exhibit the so-called Payne effect, where, under cyc…read more
bulk solids handling Journal Technical Article Loading Coal efficiently – How to achieve higher Coal Production with existing Coal Evacuation Facility The production and distribution of coal is of paramount importance for the development of India’s economy. The bottleneck in the supply chain is often found to be loading the coal onto trains at the mine. Following please find a proposal to improve this situation. read more
bulk solids handling Journal Technical Article Bag House Operation Problems: Failure Patterns, Problem Identification and Solutions More stringent air-pollution laws are drawing more attention to the off gas cleaning facilities of industrial and power plants. Nowadays, bag filters are gaining more and more attention also in medium and high temperature applications. Typical problems arising from physical function and chemical imp…read more
bulk solids handling Journal Research Paper Why Idlers fail: Quantifying the Effects of Idler Bearing Misalignment on Bearing Life Idlers are an essential component of every belt conveyor. They are a rather cheap massproduct which anybody uses, but (almost) nobody takes into account – unless they fail. Following you'll find some explanation about the reasons of their failure. read more
White Paper New Recommendations give Guidance on how to handle industrial Paper Sacks properly When filling, storing or distributing industrial paper sacks, poor handling practices can increase the risk of damage to paper sack materials or filled paper sacks. The handling recommendations for paper sacks launched by the European Sack Group – a collaboration between CEPI Eurokraft and Eurosac…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 Case Study Pneumatic and Hydromechanical Techniques in the Gold and Coal Mining Industries in South Africa Based on various task definitions from gold and coal mines in South Africa, it is explained to what extent existing techniques can be applied to the solution of these problems. The investigation shows that experience already gained in pneumatic transport of building materials in West European coal m…read more
bulk solids handling Journal Technical Article Dense Phase Pneumatic Conveying Pneumatic conveying is certain to be applied to an increasingly diverse range of industrial uses in the 1980s as its advantages become more widely accepted. This paper details how recent technical developments, in particular the introduction of dense phase systems have overcome many of the limi…read more
bulk solids handling Journal Technical Article Idlers Made to Measure – Choosing the best Idler for the Job Cuts Operating Costs The significance of the idlers is often underestimated when efficiency analysis is performed on belt conveyors. Because price is often the sole selection criterion, the idlers have to be inexpensive. However, that mentality often results in higher operating costs. read more
bulk solids handling Journal Case Study East Asia’s largest Bucket Wheel Excavator – Success for Tenova Takraf’s BWE System at Zhahanaoer Mine in China In Inner Mongolia the specialists from Leipzig-based open pit mining equipment supplier Takraf installed an excavator-conceyor-spreader system, that is aimed at improving China’s lignite mining capacity. read more
bulk solids handling Journal Case Study Doubling a Conveyor's Capacity – New Drives and improved Control allow twice the Conveying Capacity A South Korean cement facturer needed to increase the capacity of their plant. Therefore, the conveying capacity of the conveyor connecting the open pit and the cement plant needed to be doubled. This was achieved by doubling the conveyor speed, as described below. read more
bulk solids handling Journal White Paper Static Electricity Hazards – Dust Cloud Ignition caused by Static Electricity After emptying a powder from a plastic drum into a metal hopper, a spark occurred when the operator removed the drum, igniting the dust distributed in the air. The following paper presents an explanation about the “why” and “how not” of this accident. read more
bulk solids handling Journal White Paper Slurry, Paste and Cake: Transport by hydraulic driven Piston Pumps The traditional way to transport liquids and semi liquid material generally uses a lot of water. But nowadays, where water has become a limited resource, this is no longer acceptable. However, the amount of water needed can be easily reduced – by selecting the right kind of pumping system. read more
Case Study Twin-shaft Batch Mixer used on major Construction Site in Germany The concrete manufacturer Godel-Beton based in Stuttgart, Germany, has been relying on the tried-and-tested twin-shaft mixing technology from BHS-Sonthofen for decades – and is currently counting on its expertise in the Stuttgart 21 project. read more
bulk solids handling Journal Technical Article Extended Reach – Overland Pipe Conveyor with Low Rolling Resistance Belt For long overland pipe conveyors the costs from increased power consumption are significant. This article describes a methodology that analyses the low rolling resistance pipe belts and introduces recent applications on overland pipe conveyors. read more