Zementwerk Berlin GmbH & Co KG (Berlin, Germany) has been using Insitec on-line laser diffraction particle sizing (Malvern Instruments) systems to optimize cement production for more than a decade. This collaborative article reviews the company’s experience of real-time particle sizing, examining the implementation of closed loop control and the economic benefits that advanced control strategies have delivered. These include an increase in plant throughput of 2%. The use of on-line analysis in the production of ‘environmentally friendly’ slag cements is a particular focus.

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