Cement News tagged under: Manufacturing technology
Three lines of defence11 January 2023, Published under Cement NewsDigitalisation has enabled cement producers to increase the uptime of their equipment as artificial intelligence (AI) has alerted them to current or future equipment failure so swift action can be taken through the plant’s maintenance and repair programme. This reduces lengthy and costly downtime. By Mary Beth Kramer, Kramer Consulting, USA. Detectable failures at early stages save on repair costs and reduce downtime Predictive maintenance with artificial intelligence (AI) are h... |
Supporting the drive for decarbonisation10 January 2023, Published under Cement NewsAs cement producers continue on the path to decarbonisation and carbon capture readiness, XDH-energy discusses the interconnected themes of Environmental Compliance as a Service (E-CaaS), Energy as a Service (EaaS), and waste heat recovery for increased peak load demand and flue gas cleaning for optimal CO 2 capture. By Xavier d’Hubert, XDH-energy. Figure 1: Environmental Compliance as a Service (E-CaaS) – five building blocks Not a day goes by without an announcement for a new... |
Better predictive power03 January 2023, Published under Cement NewsWith the cement sector now under pressure to improve the efficiency of operations, Industry 4.0 brings new opportunities. The study presented in this article provides a novel data-driven approach to predicting weighing deviations in the loading of bags, pallets or bulk cement into vehicles at a cement plant. Real-world empirical data was used to explore different machine learning classifiers and compare their predictive power to improve dispatch workflow process efficiency. By Júlio Barros, ... |
Closed-loop AI optimisation23 December 2022, Published under Cement NewsA new wave of artificial intelligence (AI) systems are quickly replacing legacy cement process controls with self-learning optimisation and sophisticated AI models. They improve quality while allowing mills and kilns to achieve unprecedented throughput and energy savings. The closed-loop optimisation of the Roanoke plant in Virginia, USA, demonstrates how swiftly these improvements can be made. By Othon Manis, TITAN Cement, Greece, and Javier A García and Iñigo Llopis, OPTIMITIVE, Spain. ... |
Value from waste heat13 December 2022, Published under Cement NewsWaste heat recovery represents a significant opportunity for cement producers to improve plant efficiency and reduce their carbon footprint. This article looks at several proven technologies for capturing and utilising waste heat, and explores additional pathways for industry decarbonisation through sector coupling. By Siemens Energy, USA. Figure 1: steam cycle outperforms ORC and sCO2 in terms of net power output In 2021, the Global Cement and Concrete Association (GCCA), whose... |
Gasification technology for shredded solid waste21 November 2022, Published under Cement NewsMore than two years ago Taiheiyo Engineering Corp commercialised technology and equipment for mixing and drying hot meal and sewage sludge with its Taiheiyo Thermal Reactor (TTR®).1,2 A new application of the TTR is now being introduced for gasifying shredded solid waste (SSW) for effective use as calciner fuel. By Yasushi Yamamoto, Taiheiyo Engineering Corp, Japan. Figure 1: Taiheiyo Thermal Reactor (TRR®) The development of the technology for the gasification of shredded soli... |
To SCR or SNCR?21 November 2022, Published under Cement NewsWhile in some cases the choice between SCR and SNCR technology for NOx reduction appears straightforward, there is a middle way that enables the use of the less expensive option of SNCR technology. Lechler explains how cement producers can benefit from its high-efficiency SNCR technology. By Dipl Ing Claus Fritze, Lechler, Germany. Figure 1: structure of the APC Process Proven technologies for the reduction of NO x emissions, in addition to primary measurements, are either the... |
Game changer in the kiln08 November 2022, Published under Cement NewsIn today’s operating environment, the refractory lining in the safety zone of a kiln needs to accommodate the requirements of alkali resistance and energy-saving properties. A new brick by Refratechnik is designed to become the link between established refractory products for this zone, making it a game changer for the kiln. By Lutz Derks, Refratechnik Cement GmbH, Germany. Refratechnik Cement GmbH’s kronal® 60 ar is a newly-developed refractory brick for the safety zone in the ki... |
Adapting calciners for decarbonisation01 November 2022, Published under Cement NewsThe drive to decarbonise cement kiln lines has led to new research that looks at the use of hydrogen and plasma flames in co-firing with biomass. While this new technology requires modifications to the calciner and burner sections, recent R&D investigations open the door for lower-carbon kiln firing. By Tahir Abbas and Michalis Akritopoulos, Cinar Ltd, UK. Figure 1: the swirling imparted by the tertiary air (TA) to the upward moving riser duct stream in the calciner is shown by ... |
Tapping ultimate WHR potential25 October 2022, Published under Cement NewsReducing the carbon footprint of cement production and introducing captive electricity generation have become priorities for Turkish cement producer Nuh Çimento. After nine years of waste heat recovery (WHR) experience at its Hereke cement works, the company has gathered a considerable amount of data that can be used to assess WHR efficiency and tap its ultimate potential. By Halim Tekkesin, Sami Zengin, Turgut Atakorkut and Sabri Karabay, Nuh Çimento, Turkey. Nuh Çimento now has over... |