April 2015
The April issue has a special focus on North America’s cement industry and the region’s technical expertise. This includes a Keynote by the Portland Cement Association’s Rick Bohan on the dangers of dust, case studies of recent projects at US cement plants, discussion of emissions and mercury control ahead of NESHAP, as well as a look at CalPortland Company’s intern programme. Outside of North America, the issue focuses on a range of topics, from quarry rehabilitation to alternative fuel and energy sources, as well as health and safety.
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Keynote: The Dangers of Dust
Rick Bohan, Director of Manufacturing Technology, PCA, USA, outlines the dangers of combustible dust in light of new process demands.
Investing in Interns
Betsy Lamb and Stephen J. Coppinger, CalPortland Company, USA, explain how investing in intern programmes can help the industry to attract and retain a new generation of top talent.
Mercury Control in the US Cement Industry
Tim Dudash, Senior Process Engineer, Penta Engineering Co. LLC, USA, introduces various mercury mitigation technologies in the context of the impending NESHAP compliance date.
The Countdown to NESHAP
Shawn Wood, Ohio Lumex Co., Inc., USA, provides an overview of US cement plants’ preparation for NESHAP and Cement MACT.
Meticulous Measurements
Peter G. Zemek, Barbara Marshik and Sylvie Bosch-Charpenay, MKS Instruments, USA, examine ultra low-level HCl CEMs for Portland cement plants’ continuous emission measurement systems using EPA-approved and TÜV-certified CEM FTIR analysers.
Optimising Dry Sorbent Injection Technology
Melissa Sewell and Jerry Hunt, Lhoist North America, discuss the optimisation of dry sorbent injection technology to achieve HCl or SO2 reductions within the cement industry.
Water Cooling System
Ashwin Patni, Lechler Inc., USA, outlines the basic design considerations for a flue gas cooling system and the potential advantages of a lower temperature operation for cement plants.
Is AFR a Bargain?
Michalis Akritopoulos and Tahir Abbas, Cinar Ltd, UK, examine the benefits and pitfalls of co-processing AFR for the cement industry.
Driving Innovation
Nicholas DeCristofaro, Ph.D., and Vahit Atakan, Ph.D., Solidia Technologies®, USA, discuss the transformation of CO2 into a profitable solution for the cement and concrete industry.
Cover Story: Preparing for the Economic Upturn and Environmental Compliance
Robert E. Shenk and Nathan Murphy, FLSmidth Inc., USA, review several projects that have seen US cement producers reducing costs, expanding capacity and achieving environmental compliance.
Dispatch & Delivery
Scott Dugan, Command Alkon, USA, talks through the automation of the dispatch and delivery process at cement plants and terminals.
Down the Rathole
Robert Nogaj, Vice President of Operations, Martin Engineering, outlines a hopper flow project that solved the problem of ratholing at CRH Roadstone’s Waterford quarry site in Ireland.
Reality Check
Charles R. Strait, Petron Corporation, USA, challenges claims that the use of clear open gear lubricants will result in more efficient gear cooling when compared to dark open gear lubricants.
Committing to AF
The Alternative Fuels and Raw Materials Team, Argos, Colombia, talk through the obstacles facing large-scale alternative fuel utilisation in the country and the steps that the company is taking to overcome these challenges.
A Solar Solution
Amy Thorley, Lark Energy, UK, describes how the installation of solar panels has helped to enhance clean power usage and reduce energy costs at Hanson Cement’s Ketton plant in Rutland.
Pedalling to the Summit
World Cement talks to Rafael Menéndez-Abascal, Health & Safety Manager at Lafarge Spain, about the continuous path to health and safety excellence.
Save Your Breath
Leading health and safety experts highlight the importance of respiratory protection for workers in the cement industry.
With Nature in Mind
Stefanie Kaufmann, HeidelbergCement Group, reports on the international Quarry Life Award – a competition created by HeidelbergCement to develop and share new ideas for the promotion of biodiversity in quarrying sites.
Improving Biodiversity Management
Graham Sprigg, Managing Director of IMS Consulting and a Member of the Cement Sustainability Initiative’s Communications Task Force, outlines the organisation’s latest guidance for biodiversity management in the cement and quarrying industries.
Keeping Up Quality
M. Magistri, Mapei SpA, Italy, outlines an investigation into the comparative strengths of cements produced by different grinding systems.
Double Flap Airlock Valves
Jack Hilbert, Pneumatic Conveying Consultants, LLC, and Kevin Guay, Plattco Corporation, USA, outline how to apply double flap valve technology to solve performance problems with line chargers in cement plant pneumatic conveying systems.
Overhauling a Flat Plate Chain Conveyor
Thomas Wagner, Managing Director, FB Ketten Austria, describes the overhaul of the 50-year-old plate conveyor in the Juracime Cornaux cement plant in Switzerland.
Product News
Regional Report Infographic
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