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Dry processing ● Dry Jigging of Coal

Summary: The first of the newer generation dry jigs has been commissioned in 2002 in the USA and more than 70 followed in recent years. This paper describes the advantages of the dry jig process. It...

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Small lime works with big technology

Temperatures between 900 and 1200° C are needed to make burnt lime out of limestone. Chemists call this de­acidifying process, in which the mineral releases carbon dioxide, calcination. From calcium...

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Newest drill rigs SmartROC D50 and D55

The SmartROC D50 and D55 are versatile rigs powered by low-emission engines, which can cleverly adapt their output to the task at hand at all stages of production. The Rig Control System (RCS) in...

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High force transmission by low weight

M artin Engineering has introduced a portable vibrator that activates the free flow of bulk materials from closed-top hopper railcars. With one of the highest force to weight ratios available in the...

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