ZKG Newsletter 12|2021
A processing line for flexible production of refuse-derived fuels
in different qualities – a case study of Helmut Westarp
For its customer Westarp in Aschaffenburg, Vecoplan implemented an efficient, flexible processing line for a wide range of high-quality refuse-derived fuels. In order to avoid interfaces and minimise its administrative costs, Westarp looked for a company that could provide a one-stop solution, from project planning to installation to commissioning. Vecoplan AG provided Westarp with two high-performance pre-shredders for feeding material to a plant with settings for various sorting and shredding requirements. [Photo: Vecoplan AG]
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A quantum leap in quality and process control
Results in under 60 minutes instead of at least 24 hours. The polab® Cal system automatically prepares cement samples and analyzes them on the basis of parameters defined by the plant operator. polab® Cal can weigh the sample, set the water-cement ratio, blend the samples, load them into the calorimeter, and automatically evaluate the data. polab® Cal is of modular design and can operate one or more calorimeters. polab® Cal closes the gap between process and product quality control.
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HeidelbergCement signs “Business Ambition for 1.5 °C” and
joins “Race To Zero” campaign of the UN
HeidelbergCement has signed the “Business Ambition for 1.5 °C Commitment”, a global initiative led by the SBTi in partnership with the UN Global Compact and the “We Mean Business” coalition, aimed at limiting global warming to 1.5 °C and achieving net zero carbon emissions by 2050 at the latest.
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Markets and Trends
Latest trends in clay activation
The cement industry is under pressure. The carbon footprint of the cement production has to be reduced significantly, the clinker ratio in cement has to be minimized but the availability of some of the mostly used supplementary cementitious materials (SCM) is already in a decline. Activated clays are a promising opportunity to close this gap because of their excellent pozzolanic properties and widespread availability. [Photo: Cementos Argos]
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BEUMER Group: U-shape conveyor
The U-shape conveyor allows the implementation of narrower curve radii than a troughed belt conveyor and higher mass flows than a pipe conveyor. At the same time and contrary to the troughed belt conveyor, it protects the material conveyed from environmental influence and the environment from material loss and emissions. Thus this u-shaped conveying solution has proven to be an ideal alternative in the cement industry as well as in port terminals if high capacity is required with little space available.
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“Fit for 55” should help industry decarbonise
Cembureau, the association of the European cement industry, is ready to engage on the “Fit for 55” legislative package published by the European Commission on 14 July 2021. “Delivering deep emission cuts by 2030 is a major challenge. It requires a coherent package that boosts the take-up of low-carbon technologies while addressing the risk of carbon leakage, at a time when the EU is increasing its climate ambition”, said Koen Coppenholle, Cembureau Chief Executive.
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Hot-gas generators and impulse burners for alternative fuels
Companies with large heat needs are now searching more than ever for fuels which can be considered CO2 neutral or can at least reduce CO2 emissions. Carbotechnik Energiesysteme GmbH has developed for this purpose combustion and dosing systems, using biogenic fuels which can be combusted in powder form. [Figure: Carbotechnik]
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Creating framework conditions for the transformation
of the cement industry
The “Environmental Data of the German Cement Industry 2020” now published show how cement manufacturers in Germany are facing up to the environmental challenges of our time. At the top of the agenda are three major topics: Climate neutrality by 2050, the saving of primary raw materials and air pollution control.
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Highlights of the Current Issue
Sustainable lime burning technology with shaft kilns
The Quadriga robot system heralds a new era for safe lining demolition work as well as relining in vertical components
Effect of precalciner collaborative disposal of RDF and bituminous coal on the generation and transformation
of NOx and SO2
Investigations into calcined clay cements containing limestone as compared with calcined clay cements
containing marble dust
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