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April 2012

The April issue of World Coal focuses on coal preparation and includes the Coal Preparation Buyers Guide 2012 – the annual review of major coal preparation equipment manufacturers. Other highlights include articles from the IEA Clean Coal Centre on technologies for upgrading low rank coal and a preview of Coal Prep 2012, which takes next month in Lexington, Kentucky. The regional report looks at recent developments in Colombia as it tries to boost production and take advantage of the boom in Asian demand.


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Contents

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Coal News

Industry View: Where Should Miners Take Their Business?
Fred McMahon, The Fraser Institute, Canada.

Product News

Ready For Take-Off
Colombia’s importance on the global coal stage is growing in line with the shifts in overall seaborne trade. Barry Baxter looks at the country’s potential and pitfalls.

Trading Up
Nigel S. Dong, IEA Clean Coal Centre, UK, surveys technologies for the upgrading of low rank coals.

A Lifetime Of Service
Manuel Noss, Sandvik Mining, Germany, outlines key design features for a reliable roll crusher.

Dewatering Fine Coal
R. Raberger, Andritz AG, Austria, and G. Schnabel, Andritz Separation GmbH, Germany, survey different high-capacity centrifuge and filtration options for the dewatering of fine coal.

Reaching Maturity
Lütke von Ketelhodt, CommodasUltrasort, South Africa, explains how sensor-based coal sorting technology has come of age.

The Beating Heart
John Otten, Weir Minerals, US, looks at how the latest developments in slurry pump design and maintenance strategies are boosting productivity at mines worldwide.

The Sizer Option
MMD examines the advantages of sizers for coal preparation applications.

Going Dry
Reuben G. Neumann and Kurt E. Wilson, FLSmidth Salt Lake City Inc., US, look at advances in coal refuse deposition in the US.

Drying Out
Adam Giles, Environmental Clean Technologies Ltd, Australia, explains the fundamentals underpinning brown coal densification and how a new low rank coal drying process aims to deliver the first large-scale demonstration project in Australia.

Greetings From Kentucky
Lauren Bryant provides a guide to Kentucky, US, and Coal Prep 2012, which takes place at the Lexington Center, 1 – 3 May 2012.

Coal Preparation Buyers Guide 2012
World Coal presents its annual Coal Preparation Buyers Guide, reviewing the major coal preparation equipment manufacturers.

Automatic Transmission
Anthony Sexton and Duane Bennett, Kanawha Scales & Systems, US, discuss automation trends in truck loading.

The Economics Of Conveying
Joseph A. Dos Santos, Dos Santos International, US, explores the cost and value of high angle conveying in the first part of a two-part article on conveyor technology.

Model Behaviour
Yong-Jin Kim, BMT WBM, Australia, puts forward an integrated modelling and design approach to minimising transfer chute blockages.


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