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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

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“Clean” Recycling – Concrete & Asphalt Recycler utilizes Atomized Dust Suppression

Reducing the need to landfill huge amounts of reusable debris from road repair includes the processing of these materials during which a greaat amount of dust is produced. A California company solved its dust problems with an special water mist generator. read more

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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

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Pneumatic Conveying Equipment for the Mining Industry

The author describes heavy duty equipment for the application of dilute-phase pneumatic conveying of large-size abrasive rock or coal under rugged underground mining conditions which can have advantages over conveyor belts bucket elevators or other forms of transport. read more

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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

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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

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Assessment of Methanol as a Carrier Liquid for Coal Transport Through Pipelines

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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

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The Current Status of Hydraulic Backfill Techniques in South Africa

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Particle Degradation of ROM Coal and Washery Tailings up to 63 mm Size with Horizontal Hydrotransport

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The Use of Computers for Heterogeneous Slurry Pumping Analysis

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Selecting a rotary valve for use in a pneumatic conveying system is somewhat of a fine art. If undertaken properly the end result will be a total system with a long-range operating performance and high efficiency. In choosing the correct rotary valve for a particular system, the designer must c…read more

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