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December 2021

The December issue of World Cement begins with a review of the state of the cement sector in Sub-Saharan Africa. The issue then moves on to cover topics, such as: Alternative Fuels, Silo Clean-Out & Repair, Refractories, Clinker Cooling, Maintenance, Machine Learning & Automation, Air Pollution Control, and Waste Heat Recovery.

This month's front cover is brought to you by N+P Group.


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Contents

05  Comment

06  News

REGIONAL REPORT: SUB-SAHARAN AFRICA
10  Seeking Success In Sub-Saharan Africa

World Cement Editor, David Bizley, provides an update on recent cement and construction news from Sub-Saharan Africa.

COVER STORY: ALTERNATIVE FUELS
13  Putting Your Best Fuel Forward

N+P Group describes the latest developments in waste derived alternative fuels and raw materials, and outlines how cement producers could utilise them to achieve higher thermal substitution rates.

SILO CLEAN-OUT & REPAIR
17  The Light At The End Of The Silo

John Hodson, Cardox, describes the company’s silo clean out strategy for Hanson’s cement plant in Purfleet, UK.

REFRACTORIES
22  The Significance Of Service

Dr. Stefan Puntke, Dr. Christian Meyre, Dr. Hans-Jürgen Klischat, and Klaus-Martin Meier, Refratechnik Cement GmbH, discuss the importance of good customer service in the cement and refractory industries.

CLINKER COOLING
26  A Map To Modernisation

Carlos Fernandez, SATAREM, outlines the key steps on the journey towards successful and cost-effective clinker cooler modernisation.

31  Transfer In Texas
Byron Allen, Martin Engineering, details the upgrade of a hot clinker transfer point for a cement plant in Texas.

MAINTENANCE
35  Crying ‘Zwolf’

Albrecht Schall, VDZ, discusses the ‘Zwolf’ and the role of maintenance in ensuring that cement kilns operate effectively.

39  Achievement In Azerbaijan
Robert Schmaus, Prüftechnik, and Nazim Huseynov, Holcim, discuss how Holcim’s Azerbaijan cement facility was able to cut maintenance costs by 96% using a condition monitoring system to track the health of production-critical machinery.

SOFTWARE, MACHINE LEARNING & AUTOMATION
43  A Bundle Of Energy

Thomas Febvin, METRON, considers the importance of digital tools in reducing carbon emissions and boosting energy efficiency at the cement plant.

46  Data Is Power
Mark Yseboodt, Siemens, explains the importance of embracing machine learning and software innovations in order to drastically improve cement plant performance.

AIR POLLUTION CONTROL
52  Thinking About Filtration

Graziano Bertulessi and Martin Schroeter, Tri-Mer Corporation, consider why the cement industry should embrace ceramic filtration technology as a valuable tool to achieve the next level of emissions control.

WASTE HEAT RECOVERY
57  Taking Turbines Forward

Arun Mote, Triveni Turbines, reviews the role of turbine design in waste heat recovery (WHR) systems and looks at the future of the technology in the Indian cement sector.

61  Opting For ORC
Turboden explains how cement plants could achieve better energy efficiency while reducing production costs and CO2 emissions through ORC technology for waste heat recovery.


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