The Drop Weight Test Revisited: Characterization of the Crushability of Hot Sinter and Validation of the Approach with Natural Rocks

Wolfgang Öfner, Guido Zaunrith

Research output: Contribution to journalArticleTransferpeer-review


The crushing behaviour of sinter from blast furnace operations is known to depend on its temperature. In order to characterize it, hot sinter was subject to single particle tests in a very basic drop weight tester. Additionally, a laboratory jaw crusher was sacrificed to work the same feed material. As the results regarding net energy input were not consistent, two common rocks were tested in comparison with both the drop weight and the jaw crusher. Although some discrepancies remained, the results with the rocks can basically be considered as consistent. This investigation illustrates some of the difficulties that can arise when established test methods are applied on material with deviant properties.
Translated title of the contributionWiederbelebung des Fallhammerversuches: Beschreibung des Zerkleinerungsverhaltens von Heißsinter und Überprüfen der Methodik anhand natürlicher Gesteine
Original languageEnglish
Pages (from-to)277-282
Number of pages6
JournalBerg- und hüttenmännische Monatshefte : BHM
Issue number6
Publication statusE-pub ahead of print - 2 Jun 2016


  • hot sinter
  • comminution test
  • drop weight
  • jaw crusher

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