Global Slag News

UK: Fairport Engineering has revealed details on its work on Hanson’s 1Mt/yr Purfleet ground granulated blast furnace slag (GGBS) grinding plant. The plant includes two closed circuit ball mills and a vertical roller mill. Fairport Engineering worked on a project to improve the raw material intake facilities at the unit to replace a storage bunker with a new feed hopper and ramp. In the next phase the bunker is likely to be removed and replaced with a second feeding system.

The new system includes a reinforced concrete access ramp that will allow front-end loaders to deposit raw material into a 30t capacity Hardox lined hopper before being metered, at up to 200t/hr, by a vibrating feeder, onto an exiting conveyor belt that feeds the GGBS plant. The entire installation was completed in six weeks.

China: The Chinese government is set to further restrict imports of metal by-products and scrap in July 2019. The latest rules will control imports of eight types of scrap metal, including copper, aluminium and steel scrap, according to Reuters. Companies that want to continue importing these items will need to apply to the environmental ministry to prove they are in compliance with environmental protection standards. Imports of iron and steel slag were banned at the end of 2018.

UK: Henrik Adam has been appointed as the chief executive officer (CEO) of Tata Steel Europe. He succeeds Hans Fischer, who has decided to step down from the post. Fischer will continue as a non-executive director and will continue to advise TV Narendran, CEO and managing director of Tata Steel. Adam will also join the board of Tata Steel Europe and report to TV Narendran.

Adam joined Tata Steel Europe in 2011 as Chief Commercial Officer. Prior to this he held a wide range of roles at ThyssenKrupp including CEO of ThyssenKrupp Electrical Steel. He has also been a director of EEF (now called Make UK), the UK’s manufacturers’ organisation, and chairman of WorldAutoSteel, the automotive group of the World Steel Association. Born in Essen Germany, Adam is a mechanical engineer who started his career as a scientist in vehicle safety technologies.

Netherlands: Ecocem Benelux has inaugurated a new 5000t export silo at its Moerdijk ground granulated blastfurnace slag (GGBS) plant. The new silo has been built at the waterfront in Moerdijk and rests on 65 piles sunk to a depth of up to 50m. The system operates via a screw extractor that conveys the GGBS to the centre of the bulk silo, where screws and a bucket elevator carry it to the new 150m³ day-silo. Both trucks and ships can be directly loaded from the silo: trucks on the weighing bridge situated under the silo and ships via a pneumatic transport installation with a maximum capacity of 250t/hr.

Ecocem Benelux is a subsidiary of Ireland’s Ecocem Materials. Ecocem Benelux supplies GGBS in bulk to the Belgium, Netherlands and Luxembourg (Benelux) market for both concrete and mortars. The facility also exports to the Swedish market. Since opening in 2002 the plant has doubled its production capacity to 0.65Mt/yr.

Australia: Researchers from the University of New South Wales (UNSW) and CRC for Low Carbon Living (CRCLCL) are testing a geopolymer concrete made from fly ash and blast furnace slag on a road in Sydney. A 30m stretch of road is being trialled with 15m of traditional concrete and 15m of a geopolymer concrete. Nine sensors have been positioned under the concrete to monitor and compare how the geopolymer concrete performs. The results from the trial will be used to create the first set of industry guidelines for geopolymer concrete.

“While we’ll monitor the road performance for up to five years, a lot of the data collected in the first three to 12 months of this world-first trial will be used to confirm our models and strengthen our predictions,” said Professor Stephen Foster, Head of the School of Civil and Environmental Engineering at UNSW and the CRCLCL project lead.