Zinc cycles caused by in-plant dust recycling in integrated steel mills: Optimization using air classification

Research output: Chapter in Book/Report/Conference proceedingsConference contribution

Abstract

In integrated steel mills considerable amounts of dusts are separated from the off-gases. These dusts are partly recycled via the sinter plant. Increasing problems in dust recycling arise from the increasing amount of Zn, which enters the steel mill especially with the cooling scrap. Since the Zn content of the dusts depends on the particle size air classification could be applied to separate the dusts into a coarse Zn-depleted size fraction and a Zn-enriched fine fraction. Thereby, dust recycling could be optimized and landfill of dust with medium Zn concentration cold be replaced by transfer of a smaller amount of Zn-rich dust to secondary Zn production.
Original languageEnglish
Title of host publicationProceedings of the 50th International October Conference
Pages249-252
Publication statusPublished - 2018
Event50th International October Conference on Mining and Metallurgy - Bor, Serbia
Duration: 30 Sep 20183 Oct 2018

Conference

Conference50th International October Conference on Mining and Metallurgy
CountrySerbia
CityBor
Period30.09.201803.10.2018

Keywords

  • Steel mill
  • zinc
  • dust recycling
  • air classification

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